/* roulang page: index */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }
        *, *::before, *::after { box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
        a:hover { color: var(--secondary-gold); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        ::selection { background: var(--secondary-gold); color: #fff; }
        :focus-visible { outline: 2px solid var(--secondary-gold); outline-offset: 2px; }

        .container-custom { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 640px) { .container-custom { padding: 0 16px; } }

        /* Header / Navigation */
        .site-header {
            position: sticky; top: 0; z-index: 100;
            background: rgba(15,61,46,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200,164,93,0.18);
            transition: background var(--transition-base);
        }
        .site-header .top-bar-custom {
            display: flex; align-items: center; justify-content: space-between;
            height: 68px; gap: 24px;
        }
        .brand-logo {
            display: flex; align-items: center; gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px; font-weight: 700;
            color: #fff; letter-spacing: 1.5px;
            cursor: pointer; user-select: none;
        }
        .brand-logo .logo-mark {
            width: 32px; height: 32px; border-radius: 50%;
            background: var(--secondary-gold);
            display: flex; align-items: center; justify-content: center;
            color: var(--primary-dark); font-size: 18px; font-weight: 800;
            font-family: var(--font-num); letter-spacing: 0;
        }
        .brand-logo:hover { color: #fff; }
        .nav-links {
            display: flex; align-items: center; gap: 28px;
            list-style: none; margin: 0; padding: 0;
        }
        .nav-links li a {
            color: rgba(255,255,255,0.78);
            font-size: 14px; font-weight: 500; letter-spacing: 0.5px;
            padding: 6px 2px; position: relative;
            transition: color var(--transition-base);
        }
        .nav-links li a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--secondary-gold); transition: width var(--transition-base);
        }
        .nav-links li a:hover { color: #fff; }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--secondary-gold); }
        .nav-links li a.active::after { width: 100%; }
        .lang-toggle {
            display: flex; align-items: center; gap: 4px;
            border: 1px solid rgba(200,164,93,0.45);
            border-radius: 20px; padding: 5px 12px;
            font-size: 13px; color: rgba(255,255,255,0.85);
            cursor: pointer; transition: background var(--transition-base);
            white-space: nowrap;
        }
        .lang-toggle:hover { background: rgba(200,164,93,0.15); color: #fff; }
        .lang-toggle .lang-sep { opacity: 0.4; }
        .lang-toggle .lang-active { color: var(--secondary-gold); font-weight: 600; }
        .hamburger-btn {
            display: none; background: none; border: none; cursor: pointer;
            padding: 8px; color: #fff; font-size: 24px; line-height: 1;
        }
        .mobile-drawer {
            display: none; position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
            background: var(--primary-deeper); z-index: 99;
            padding: 32px 24px; flex-direction: column; gap: 20px;
            transform: translateX(100%); transition: transform 0.3s ease;
            overflow-y: auto;
        }
        .mobile-drawer.open { transform: translateX(0); }
        .mobile-drawer a {
            color: #fff; font-size: 18px; padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1); display: block;
        }
        .mobile-drawer a.active { color: var(--secondary-gold); }
        .mobile-drawer .lang-toggle-mobile {
            margin-top: auto; align-self: flex-start;
            border: 1px solid rgba(200,164,93,0.45); border-radius: 20px;
            padding: 8px 16px; color: #fff; font-size: 14px;
        }

        @media (max-width: 1024px) {
            .nav-links { display: none; }
            .lang-toggle { display: none; }
            .hamburger-btn { display: block; }
            .mobile-drawer { display: flex; }
            .mobile-drawer.open { display: flex; }
        }
        @media (min-width: 1025px) {
            .mobile-drawer { display: none !important; }
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: 82vh;
            display: flex; align-items: center;
            background: linear-gradient(105deg, rgba(12,51,39,0.92) 0%, rgba(12,51,39,0.72) 45%, rgba(12,31,24,0.45) 100%),
                        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .hero::before {
            content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
            background: var(--secondary-gold);
        }
        .hero .hero-inner { position: relative; z-index: 2; padding: 80px 0 100px; }
        .hero-tag {
            display: inline-block; font-size: 13px; font-weight: 500;
            color: var(--secondary-gold); letter-spacing: 2px; margin-bottom: 20px;
            text-transform: uppercase;
        }
        .hero h1 {
            font-family: var(--font-serif);
            font-size: 48px; font-weight: 700; color: #fff;
            line-height: 1.25; margin: 0 0 20px; letter-spacing: 1px;
        }
        .hero-sub {
            font-size: 16px; color: rgba(255,255,255,0.82);
            max-width: 560px; line-height: 1.9; margin-bottom: 32px;
        }
        .hero-cta-row { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 36px; }
        .btn-primary {
            display: inline-flex; align-items: center; gap: 8px;
            background: var(--secondary-gold); color: var(--primary-dark);
            padding: 14px 28px; border-radius: var(--radius-btn);
            font-size: 15px; font-weight: 700; letter-spacing: 0.5px;
            transition: all var(--transition-base); border: none; cursor: pointer;
        }
        .btn-primary:hover { background: #d8b878; color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 20px rgba(200,164,93,0.3); }
        .btn-outline {
            display: inline-flex; align-items: center; gap: 8px;
            background: transparent; color: #fff;
            padding: 13px 26px; border-radius: var(--radius-btn);
            font-size: 15px; font-weight: 500; letter-spacing: 0.5px;
            border: 1px solid rgba(255,255,255,0.45);
            transition: all var(--transition-base); cursor: pointer;
        }
        .btn-outline:hover { background: rgba(255,255,255,0.1); color: var(--secondary-gold); border-color: var(--secondary-gold); transform: translateY(-1px); }
        .hero-badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 6px;
            background: rgba(255,255,255,0.08); border: 1px solid rgba(200,164,93,0.35);
            color: #fff; font-size: 13px; padding: 7px 14px; border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { color: var(--secondary-gold); font-size: 12px; }
        .hero-qualification {
            background: rgba(255,255,255,0.06); border: 1px solid rgba(200,164,93,0.25);
            border-radius: 10px; padding: 16px 20px; max-width: 480px;
            color: rgba(255,255,255,0.75); font-size: 14px; line-height: 1.7;
        }
        .hero-qualification strong { color: var(--secondary-gold); font-weight: 600; }
        .hero-scroll-hint {
            position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%);
            display: flex; flex-direction: column; align-items: center; gap: 6px;
            color: rgba(255,255,255,0.5); font-size: 12px; letter-spacing: 1px;
        }
        .hero-scroll-hint .line { width: 1px; height: 36px; background: rgba(255,255,255,0.35); }

        @media (max-width: 768px) {
            .hero { min-height: 70vh; }
            .hero h1 { font-size: 32px; }
            .hero-sub { font-size: 15px; }
            .hero .hero-inner { padding: 48px 0 72px; }
            .hero-qualification { font-size: 13px; padding: 12px 16px; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 28px; }
            .hero-badge { font-size: 11px; padding: 5px 10px; }
            .btn-primary, .btn-outline { padding: 11px 18px; font-size: 14px; }
        }

        /* Section common */
        .section { padding: 72px 0; }
        .section-dark { background: var(--bg-dark); color: var(--text-light); }
        .section-warm { background: var(--bg-warm); }
        .section-white { background: #fff; }
        .section-accent-bg { background: linear-gradient(180deg, #F7F4EE 0%, #F2EDE3 100%); }
        .section-heading { margin-bottom: 40px; }
        .section-heading .section-label {
            font-size: 13px; font-weight: 600; color: var(--secondary-gold);
            letter-spacing: 3px; text-transform: uppercase; display: block; margin-bottom: 8px;
        }
        .section-heading h2 {
            font-family: var(--font-serif); font-size: 32px; font-weight: 700;
            color: inherit; margin: 0 0 14px; letter-spacing: 0.5px; line-height: 1.3;
        }
        .section-heading .section-desc { font-size: 15px; color: var(--text-secondary); max-width: 620px; line-height: 1.8; }
        .section-dark .section-heading .section-desc { color: rgba(255,255,255,0.7); }
        @media (max-width: 768px) {
            .section { padding: 48px 0; }
            .section-heading h2 { font-size: 26px; }
        }

        /* Pain points */
        .pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
        .pain-card {
            background: rgba(255,255,255,0.04); border-left: 3px solid var(--secondary-gold);
            border-radius: 6px; padding: 22px 20px;
            transition: background var(--transition-base);
        }
        .pain-card:hover { background: rgba(255,255,255,0.07); }
        .pain-card h3 { font-size: 17px; font-weight: 600; color: #fff; margin: 0 0 10px; }
        .pain-card p { font-size: 14px; color: rgba(255,255,255,0.65); margin: 0; line-height: 1.7; }
        @media (max-width: 1024px) { .pain-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .pain-grid { grid-template-columns: 1fr; } }

        /* Solution alternating */
        .solution-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 56px; }
        .solution-row:last-child { margin-bottom: 0; }
        .solution-row.reversed .solution-img { order: 1; }
        .solution-img {
            border-radius: var(--radius-img); overflow: hidden;
            box-shadow: var(--shadow-card); aspect-ratio: 16/10;
            border: 1px solid var(--border-soft);
        }
        .solution-img img { width: 100%; height: 100%; object-fit: cover; }
        .solution-text h3 { font-family: var(--font-serif); font-size: 24px; font-weight: 700; margin: 0 0 14px; }
        .solution-text p { font-size: 15px; color: var(--text-secondary); line-height: 1.85; margin: 0 0 16px; }
        .solution-text .mini-badge {
            display: inline-block; font-size: 12px; font-weight: 600; color: var(--secondary-gold);
            border: 1px solid var(--border-gold); padding: 4px 12px; border-radius: 4px;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .solution-row { grid-template-columns: 1fr; gap: 24px; }
            .solution-row.reversed .solution-img { order: 0; }
        }

        /* Stats */
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; text-align: center; }
        .stat-item .stat-num {
            font-family: var(--font-num); font-size: 52px; font-weight: 700;
            color: var(--secondary-gold); letter-spacing: 1px; line-height: 1.2;
        }
        .stat-item .stat-label { font-size: 14px; color: rgba(255,255,255,0.7); margin-top: 8px; letter-spacing: 1px; }
        @media (max-width: 768px) { .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; } .stat-item .stat-num { font-size: 36px; } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; } }

        /* KPI / Latest updates */
        .kpi-row { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 16px; }
        .kpi-item { background: #fff; border: 1px solid var(--border-soft); border-radius: var(--radius-card); padding: 18px 22px; }
        .kpi-item .kpi-label { font-size: 12px; color: var(--text-secondary); letter-spacing: 1px; margin-bottom: 6px; text-transform: uppercase; }
        .kpi-item .kpi-value { font-family: var(--font-num); font-size: 28px; font-weight: 700; color: var(--primary-dark); }
        .kpi-item .kpi-trend { font-size: 12px; color: var(--secondary-gold); margin-top: 4px; }
        .kpi-item.kpi-highlight { background: var(--primary-dark); border-color: transparent; }
        .kpi-item.kpi-highlight .kpi-label { color: rgba(255,255,255,0.6); }
        .kpi-item.kpi-highlight .kpi-value { color: var(--secondary-gold); }
        .kpi-item.kpi-highlight .kpi-trend { color: rgba(255,255,255,0.7); }
        @media (max-width: 768px) { .kpi-row { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 520px) { .kpi-row { grid-template-columns: 1fr; } }

        /* News area */
        .news-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: 32px; }
        .news-list .news-item {
            display: flex; gap: 16px; align-items: flex-start;
            padding: 18px 0; border-bottom: 1px solid var(--border-soft);
            cursor: pointer; transition: all var(--transition-base);
        }
        .news-list .news-item:hover { padding-left: 6px; }
        .news-list .news-item .news-date {
            font-family: var(--font-num); font-size: 13px; color: var(--text-secondary);
            white-space: nowrap; min-width: 60px; padding-top: 4px;
        }
        .news-list .news-item .news-body h4 { font-size: 16px; font-weight: 600; margin: 0 0 6px; color: var(--text-main); line-height: 1.4; }
        .news-list .news-item .news-body p { font-size: 14px; color: var(--text-secondary); margin: 0; line-height: 1.7; }
        .news-recommend {
            background: var(--primary-dark); border-radius: var(--radius-card);
            padding: 24px; color: #fff; align-self: start;
        }
        .news-recommend h3 { font-size: 18px; font-weight: 600; color: var(--secondary-gold); margin: 0 0 16px; }
        .news-recommend .rec-item { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.12); }
        .news-recommend .rec-item:last-child { border-bottom: none; }
        .news-recommend .rec-item h4 { font-size: 14px; font-weight: 500; margin: 0 0 4px; color: #fff; line-height: 1.5; }
        .news-recommend .rec-item span { font-size: 12px; color: rgba(255,255,255,0.5); }
        @media (max-width: 768px) { .news-layout { grid-template-columns: 1fr; } }

        /* Media scroll */
        .media-scroll {
            display: flex; gap: 16px; overflow-x: auto; padding: 8px 0 20px;
            scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
        }
        .media-scroll::-webkit-scrollbar { height: 4px; }
        .media-scroll::-webkit-scrollbar-track { background: rgba(0,0,0,0.05); border-radius: 2px; }
        .media-scroll::-webkit-scrollbar-thumb { background: var(--secondary-gold); border-radius: 2px; }
        .media-card {
            min-width: 280px; max-width: 320px; background: #fff;
            border: 1px solid var(--border-soft); border-radius: var(--radius-card);
            overflow: hidden; scroll-snap-align: start;
            transition: all var(--transition-base); flex-shrink: 0;
            box-shadow: var(--shadow-card);
        }
        .media-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--border-gold); }
        .media-card .media-img { aspect-ratio: 16/9; overflow: hidden; background: var(--bg-warm-alt); }
        .media-card .media-img img { width: 100%; height: 100%; object-fit: cover; }
        .media-card .media-body { padding: 16px 18px; }
        .media-card .media-tag { font-size: 11px; font-weight: 600; color: var(--secondary-gold); letter-spacing: 1px; text-transform: uppercase; }
        .media-card .media-title { font-size: 15px; font-weight: 600; margin: 6px 0 4px; line-height: 1.5; }
        .media-card .media-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin: 0; }

        /* Testimonials */
        .testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .testimonial-card {
            background: #fff; border-radius: var(--radius-card);
            border: 1px solid var(--border-soft); padding: 24px;
            position: relative; box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
        .testimonial-card .quote-mark {
            font-size: 48px; color: var(--secondary-gold); opacity: 0.5;
            position: absolute; top: 8px; left: 16px; font-family: var(--font-serif); line-height: 1;
        }
        .testimonial-card blockquote {
            margin: 16px 0 16px; font-size: 14px; color: var(--text-secondary);
            line-height: 1.8; padding-left: 8px; position: relative; z-index: 1;
        }
        .testimonial-card .testimonial-author {
            display: flex; align-items: center; gap: 10px;
            border-top: 1px solid var(--border-soft); padding-top: 14px;
        }
        .testimonial-card .testimonial-author .avatar {
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--primary-dark); color: var(--secondary-gold);
            display: flex; align-items: center; justify-content: center;
            font-size: 14px; font-weight: 600; font-family: var(--font-num);
        }
        .testimonial-card .testimonial-author .author-name { font-size: 13px; font-weight: 600; }
        .testimonial-card .testimonial-author .author-role { font-size: 12px; color: var(--text-secondary); }
        @media (max-width: 1024px) { .testimonial-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 640px) { .testimonial-grid { grid-template-columns: 1fr; } }

        /* Brand intro + partners */
        .brand-intro-section { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: start; }
        .brand-intro-text h2 { font-family: var(--font-serif); font-size: 26px; font-weight: 700; margin: 0 0 16px; }
        .brand-intro-text p { font-size: 15px; color: var(--text-secondary); line-height: 1.9; margin-bottom: 12px; }
        .partner-tags { display: flex; flex-wrap: wrap; gap: 12px; }
        .partner-tag {
            background: #fff; border: 1px solid var(--border-soft);
            border-radius: 8px; padding: 12px 18px; flex: 1 1 calc(50% - 12px);
            transition: all var(--transition-base); cursor: pointer;
        }
        .partner-tag:hover { border-color: var(--secondary-gold); box-shadow: var(--shadow-card); }
        .partner-tag .pt-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
        .partner-tag .pt-desc { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }
        @media (max-width: 768px) { .brand-intro-section { grid-template-columns: 1fr; } }

        /* FAQ */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item {
            background: #fff; border: 1px solid var(--border-soft);
            border-radius: 8px; margin-bottom: 10px; overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:focus-within { border-color: var(--secondary-gold); }
        .faq-question {
            display: flex; justify-content: space-between; align-items: center;
            padding: 16px 20px; cursor: pointer; font-size: 15px; font-weight: 600;
            color: var(--text-main); transition: color var(--transition-base);
            list-style: none; user-select: none;
        }
        .faq-question::-webkit-details-marker { display: none; }
        .faq-question .faq-icon { font-size: 14px; color: var(--secondary-gold); transition: transform 0.3s ease; }
        .faq-item[open] .faq-question .faq-icon { transform: rotate(180deg); }
        .faq-answer { padding: 0 20px 18px; font-size: 14px; color: var(--text-secondary); line-height: 1.8; }
        .faq-answer p { margin: 0; }

        /* Final CTA */
        .final-cta {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deeper) 60%, #0A281E 100%);
            border-top: 3px solid var(--secondary-gold);
        }
        .final-cta .cta-inner { text-align: center; padding: 56px 0; }
        .final-cta h2 { font-family: var(--font-serif); font-size: 30px; font-weight: 700; color: #fff; margin: 0 0 12px; }
        .final-cta p { font-size: 15px; color: rgba(255,255,255,0.7); max-width: 520px; margin: 0 auto 28px; line-height: 1.8; }
        .final-cta .btn-primary { background: var(--secondary-gold); color: var(--primary-dark); padding: 14px 32px; font-size: 16px; }
        .final-cta .btn-outline { border-color: rgba(200,164,93,0.5); color: var(--secondary-gold); }
        @media (max-width: 768px) { .final-cta h2 { font-size: 24px; } }

        /* Footer */
        .site-footer {
            background: #091510; color: rgba(255,255,255,0.7);
            padding: 48px 0 24px; font-size: 14px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
        .footer-brand .footer-logo { font-family: var(--font-serif); font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 8px; }
        .footer-brand p { font-size: 13px; line-height: 1.7; color: rgba(255,255,255,0.55); }
        .footer-col h4 { font-size: 14px; font-weight: 600; color: #fff; margin: 0 0 14px; letter-spacing: 1px; }
        .footer-col ul { list-style: none; margin: 0; padding: 0; }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 13px; transition: color var(--transition-base); }
        .footer-col ul li a:hover { color: var(--secondary-gold); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px;
            display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
            font-size: 12px; color: rgba(255,255,255,0.45);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--secondary-gold); }
        @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; } }

        /* Utility */
        .text-gold { color: var(--secondary-gold); }
        .mb-0 { margin-bottom: 0; }
        .mt-0 { margin-top: 0; }
        .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* roulang page: category1 */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--secondary-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 61, 46, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200, 164, 93, 0.18);
            transition: background var(--transition-base);
        }

        .site-header .top-bar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            cursor: pointer;
            user-select: none;
            white-space: nowrap;
        }

        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 18px;
            font-weight: 800;
            font-family: var(--font-num);
            letter-spacing: 0;
            flex-shrink: 0;
        }

        .brand-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary-gold);
            transition: width var(--transition-base);
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--secondary-gold);
        }

        .nav-links li a.active::after {
            width: 100%;
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            font-size: 24px;
            line-height: 1;
            flex-shrink: 0;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary-deeper);
            z-index: 99;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer a {
            color: #fff;
            font-size: 18px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            display: block;
        }

        .mobile-drawer a.active {
            color: var(--secondary-gold);
        }

        .mobile-drawer .lang-toggle-mobile {
            margin-top: auto;
            align-self: flex-start;
            border: 1px solid rgba(200, 164, 93, 0.45);
            border-radius: 20px;
            padding: 8px 16px;
            color: #fff;
            font-size: 14px;
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .mobile-drawer {
                display: flex;
            }
            .mobile-drawer.open {
                display: flex;
            }
        }

        @media (min-width: 1025px) {
            .mobile-drawer {
                display: none !important;
            }
        }

        /* Breadcrumb */
        .breadcrumb-custom {
            padding: 24px 0 0;
            margin: 0;
            list-style: none;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom li:not(:last-child)::after {
            content: '/';
            color: var(--border-gold);
            font-size: 13px;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .breadcrumb-custom a:hover {
            color: var(--primary-dark);
        }

        .breadcrumb-custom .current {
            color: var(--primary-dark);
            font-weight: 600;
        }

        /* Hero Section */
        .page-hero {
            position: relative;
            min-height: 42vh;
            display: flex;
            align-items: center;
            background: linear-gradient(105deg, rgba(12, 51, 39, 0.92) 0%, rgba(12, 51, 39, 0.72) 45%, rgba(12, 31, 24, 0.45) 100%),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--secondary-gold);
        }

        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            padding: 56px 0 64px;
        }

        .page-hero .hero-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary-gold);
            letter-spacing: 2px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: 42px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: 1px;
        }

        .page-hero .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 600px;
            line-height: 1.8;
            margin: 0;
        }

        @media (max-width: 640px) {
            .page-hero {
                min-height: 36vh;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-sub {
                font-size: 14px;
            }
        }

        /* Section Common */
        .section-pad {
            padding: 72px 0;
        }

        .section-pad-sm {
            padding: 48px 0;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .section-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin: 0 0 36px;
        }

        .gold-divider {
            width: 48px;
            height: 3px;
            background: var(--secondary-gold);
            border-radius: 2px;
            margin-bottom: 20px;
        }

        /* Card Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .card-grid .card-item:first-child {
            grid-column: span 2;
        }

        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid .card-item:first-child {
                grid-column: span 1;
            }
        }

        .card-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .card-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }

        .card-cover {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            flex-shrink: 0;
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .card-item:hover .card-cover img {
            transform: scale(1.04);
        }

        .card-cover .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            display: inline-block;
            padding: 4px 12px;
            background: rgba(15, 61, 46, 0.9);
            color: var(--secondary-gold);
            font-size: 12px;
            font-weight: 600;
            border-radius: 20px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(200, 164, 93, 0.4);
        }

        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.5;
            letter-spacing: 0.3px;
        }

        .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
            padding-top: 12px;
            border-top: 1px solid var(--border-soft);
        }

        .card-meta .read-more {
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 13px;
            transition: color var(--transition-base);
        }

        .card-meta .read-more:hover {
            color: var(--secondary-gold);
        }

        .card-meta .read-more .arrow {
            display: inline-block;
            transition: transform var(--transition-base);
        }

        .card-meta .read-more:hover .arrow {
            transform: translateX(3px);
        }

        /* Info Blocks */
        .info-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        @media (max-width: 768px) {
            .info-grid {
                grid-template-columns: 1fr;
            }
        }

        .info-block {
            padding: 28px 24px;
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .info-block:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
        }

        .info-block .info-icon {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .info-block h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
            letter-spacing: 0.3px;
        }

        .info-block p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* Stats Section */
        .stats-section {
            background: var(--bg-dark);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(120deg, rgba(200, 164, 93, 0.05) 0%, transparent 50%, rgba(15, 61, 46, 0.4) 100%);
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 1;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-family: var(--font-num);
            font-size: 52px;
            font-weight: 800;
            color: var(--secondary-gold);
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.72);
            margin-top: 8px;
            letter-spacing: 0.5px;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--bg-warm-alt);
            border-top: 1px solid var(--border-soft);
            border-bottom: 1px solid var(--border-soft);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-gold);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        }

        .faq-item summary {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition-base);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--primary-dark);
            transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
        }

        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
            background: var(--primary-dark);
            color: #fff;
            border-color: var(--primary-dark);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.08);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-inner h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 1px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        /* Buttons */
        .btn {
            display: inline-block;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: all var(--transition-base);
            border: none;
            letter-spacing: 0.5px;
            text-align: center;
            line-height: 1.5;
        }

        .btn-primary {
            background: var(--primary-dark);
            color: #fff;
            border: 1px solid var(--primary-dark);
        }

        .btn-primary:hover {
            background: var(--secondary-gold);
            border-color: var(--secondary-gold);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-gold {
            background: var(--secondary-gold);
            color: var(--primary-dark);
            border: 1px solid var(--secondary-gold);
        }

        .btn-gold:hover {
            background: #d4b372;
            border-color: #d4b372;
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.4);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
            transform: translateY(-1px);
        }

        .btn:focus-visible {
            outline: 2px solid var(--secondary-gold);
            outline-offset: 2px;
        }

        /* Pagination */
        .pagination-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination-custom .page-item {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 6px;
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .pagination-custom .page-item:hover {
            border-color: var(--secondary-gold);
            color: var(--primary-dark);
        }

        .pagination-custom .page-item.active {
            background: var(--secondary-gold);
            color: var(--primary-dark);
            border-color: var(--secondary-gold);
            font-weight: 700;
        }

        .pagination-custom .page-item.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(245, 241, 232, 0.72);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }

        .footer-logo {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(245, 241, 232, 0.6);
            line-height: 1.8;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(245, 241, 232, 0.6);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--secondary-gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 12px;
            color: rgba(245, 241, 232, 0.45);
            justify-content: space-between;
            align-items: center;
        }

        .footer-bottom a {
            color: rgba(245, 241, 232, 0.45);
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--secondary-gold);
        }

        @media (max-width: 640px) {
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* Responsive adjustments */
        @media (max-width: 1024px) {
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .stats-section {
                padding: 48px 0;
            }
            .stat-number {
                font-size: 38px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
        }

        @media (max-width: 640px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-sub {
                font-size: 14px;
            }
            .section-title {
                font-size: 22px;
            }
            .card-body h3 {
                font-size: 18px;
            }
            .info-block h3 {
                font-size: 16px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
            .stat-number {
                font-size: 32px;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .cta-inner p {
                font-size: 14px;
            }
        }

        /* Accessibility */
        .visually-hidden {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Custom scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-warm);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--primary-dark);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary-gold);
        }

/* roulang page: category2 */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }

        html { scroll-behavior: smooth; }

        * { box-sizing: border-box; }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
        a:hover { color: var(--secondary-gold); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15,61,46,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200,164,93,0.18);
            transition: background var(--transition-base);
        }

        .site-header .top-bar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            cursor: pointer;
            user-select: none;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 18px;
            font-weight: 800;
            font-family: var(--font-num);
            letter-spacing: 0;
        }

        .brand-logo:hover { color: #fff; }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .nav-links li a {
            color: rgba(255,255,255,0.78);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary-gold);
            transition: width var(--transition-base);
        }

        .nav-links li a:hover { color: #fff; }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--secondary-gold); }
        .nav-links li a.active::after { width: 100%; }

        .lang-toggle {
            display: flex;
            align-items: center;
            gap: 6px;
            border: 1px solid rgba(200,164,93,0.45);
            border-radius: 20px;
            padding: 6px 14px;
            color: rgba(255,255,255,0.85);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            flex-shrink: 0;
            background: none;
        }

        .lang-toggle:hover {
            background: rgba(200,164,93,0.15);
            color: #fff;
            border-color: var(--secondary-gold);
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            font-size: 24px;
            line-height: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary-deeper);
            z-index: 99;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open { transform: translateX(0); }

        .mobile-drawer a {
            color: #fff;
            font-size: 18px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            display: block;
        }

        .mobile-drawer a.active { color: var(--secondary-gold); }

        .mobile-drawer .lang-toggle-mobile {
            margin-top: auto;
            align-self: flex-start;
            border: 1px solid rgba(200,164,93,0.45);
            border-radius: 20px;
            padding: 8px 16px;
            color: #fff;
            font-size: 14px;
            background: none;
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            min-height: 48vh;
            display: flex;
            align-items: center;
            background: linear-gradient(115deg, rgba(12,51,39,0.92) 0%, rgba(12,51,39,0.75) 40%, rgba(12,31,24,0.55) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
            border-bottom: 1px solid rgba(200,164,93,0.2);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--secondary-gold);
            z-index: 1;
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 2;
            padding: 56px 0 64px;
            width: 100%;
        }

        .category-hero .hero-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary-gold);
            letter-spacing: 2px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 16px;
            letter-spacing: 1px;
        }

        .category-hero .hero-sub {
            font-size: 16px;
            color: rgba(255,255,255,0.82);
            max-width: 640px;
            line-height: 1.7;
        }

        /* Breadcrumbs */
        .breadcrumb-bar {
            background: var(--bg-warm-alt);
            border-bottom: 1px solid var(--border-soft);
            padding: 14px 0;
        }

        .breadcrumb-bar .breadcrumb-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb-bar .breadcrumb-wrap a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .breadcrumb-bar .breadcrumb-wrap a:hover { color: var(--secondary-gold); }
        .breadcrumb-bar .breadcrumb-wrap .separator { color: var(--border-gold); font-size: 12px; }
        .breadcrumb-bar .breadcrumb-wrap .current { color: var(--primary-dark); font-weight: 600; }

        /* Section Base */
        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: var(--bg-warm-alt);
        }

        .section-dark {
            background: var(--bg-dark);
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 40px;
        }

        .section-title.light { color: #fff; }
        .section-sub.light { color: rgba(255,255,255,0.7); }

        /* Cards Grid */
        .cards-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 40px;
        }

        .data-card {
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
            flex: 1 1 calc(33.333% - 24px);
            min-width: 280px;
        }

        .data-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--border-gold);
        }

        .data-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--primary-deeper);
        }

        .data-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .data-card:hover .card-img img { transform: scale(1.05); }

        .data-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(200,164,93,0.92);
            color: var(--primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .data-card .card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .data-card .card-title {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }

        .data-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .data-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-secondary);
            border-top: 1px solid var(--border-soft);
            padding-top: 14px;
        }

        .data-card .card-meta .date { display: flex; align-items: center; gap: 6px; }
        .data-card .card-meta .read-more {
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-base);
        }

        .data-card .card-meta .read-more:hover { color: var(--secondary-gold); }

        .data-card.featured {
            flex: 1 1 calc(66.666% - 24px);
            min-width: 320px;
            flex-direction: row;
        }

        .data-card.featured .card-img {
            flex: 0 0 48%;
            aspect-ratio: auto;
            min-height: 100%;
        }

        .data-card.featured .card-body {
            flex: 1;
            padding: 28px 30px;
        }

        .data-card.featured .card-title { font-size: 24px; }
        .data-card.featured .card-desc { font-size: 15px; }

        /* Stats Strip */
        .stats-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: space-between;
            background: var(--primary-deeper);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            margin: 48px 0;
            border-left: 4px solid var(--secondary-gold);
        }

        .stat-item {
            text-align: left;
            flex: 1;
            min-width: 160px;
        }

        .stat-item .stat-num {
            font-family: var(--font-num);
            font-size: 48px;
            font-weight: 700;
            color: var(--secondary-gold);
            line-height: 1.2;
            letter-spacing: 0;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        /* Feature Blocks */
        .feature-block {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 56px;
        }

        .feature-block.reverse { flex-direction: row-reverse; }

        .feature-block .feature-text { flex: 1; }
        .feature-block .feature-img { flex: 1; }

        .feature-block .feature-img img {
            border-radius: var(--radius-img);
            border: 1px solid var(--border-soft);
            box-shadow: var(--shadow-card);
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .feature-block .feature-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary-gold);
            letter-spacing: 1.5px;
            margin-bottom: 10px;
        }

        .feature-block h3 {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 14px;
            line-height: 1.4;
        }

        .feature-block p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        /* Process Steps */
        .process-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin: 40px 0;
        }

        .process-step {
            flex: 1;
            min-width: 220px;
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: left;
            position: relative;
            transition: all var(--transition-base);
        }

        .process-step:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card-hover);
        }

        .process-step .step-num {
            font-family: var(--font-num);
            font-size: 40px;
            font-weight: 700;
            color: var(--secondary-gold);
            line-height: 1;
            margin-bottom: 12px;
        }

        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* Pagination */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            margin: 40px 0 20px;
        }

        .pagination-wrap .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 38px;
            height: 38px;
            padding: 0 12px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-soft);
            background: #fff;
            color: var(--text-main);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .pagination-wrap .page-btn:hover {
            border-color: var(--secondary-gold);
            color: var(--primary-dark);
        }

        .pagination-wrap .page-btn.active {
            background: var(--secondary-gold);
            border-color: var(--secondary-gold);
            color: var(--primary-dark);
            font-weight: 700;
        }

        .pagination-wrap .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* FAQ */
        .faq-section {
            background: #FFFFFF;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 40px;
            margin-top: 48px;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-soft);
            padding: 18px 0;
        }

        .faq-item:last-child { border-bottom: none; }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            padding: 6px 0;
            gap: 16px;
            transition: color var(--transition-base);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }

        .faq-question:hover { color: var(--primary-dark); }

        .faq-question .faq-icon {
            color: var(--secondary-gold);
            font-size: 14px;
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question .faq-icon { transform: rotate(180deg); }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-top: 10px;
        }

        .faq-answer p { margin: 0; }

        /* CTA Section */
        .cta-section {
            background: var(--primary-deeper);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            text-align: left;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(200,164,93,0.2);
        }

        .cta-section::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200,164,93,0.08);
        }

        .cta-section h3 {
            font-family: var(--font-serif);
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
            line-height: 1.4;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            text-decoration: none;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            background: var(--secondary-gold);
            color: var(--primary-dark);
        }

        .btn-primary:hover {
            background: #d4b574;
            color: var(--primary-darker);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(200,164,93,0.3);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255,255,255,0.4);
        }

        .btn-outline:hover {
            border-color: var(--secondary-gold);
            color: var(--secondary-gold);
            background: rgba(200,164,93,0.08);
        }

        .btn-dark {
            background: var(--primary-dark);
            color: #fff;
        }

        .btn-dark:hover {
            background: var(--primary-deeper);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(15,61,46,0.25);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 64px 0 0;
            margin-top: 72px;
            border-top: 1px solid rgba(200,164,93,0.15);
        }

        .site-footer .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        .site-footer .footer-brand { flex: 1 1 280px; }
        .site-footer .footer-col { flex: 1 1 160px; }

        .site-footer .footer-logo {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.65);
            max-width: 320px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--secondary-gold);
            letter-spacing: 1px;
            margin: 0 0 14px;
            text-transform: uppercase;
        }

        .site-footer .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }

        .site-footer .footer-col ul li a {
            color: rgba(255,255,255,0.6);
            font-size: 14px;
            transition: color var(--transition-base);
        }

        .site-footer .footer-col ul li a:hover { color: var(--secondary-gold); }

        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: rgba(255,255,255,0.5);
        }

        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition-base);
        }

        .site-footer .footer-bottom a:hover { color: var(--secondary-gold); }

        /* Responsive */
        @media (max-width: 1024px) {
            .category-hero { min-height: 42vh; }
            .category-hero h1 { font-size: 32px; }
            .data-card { flex: 1 1 calc(50% - 24px); }
            .data-card.featured { flex: 1 1 100%; flex-direction: column; }
            .data-card.featured .card-img { flex: none; aspect-ratio: 16/9; }
            .feature-block { gap: 32px; }
            .feature-block h3 { font-size: 22px; }
            .stats-strip { padding: 28px 24px; gap: 20px; }
            .stat-item .stat-num { font-size: 36px; }
            .section { padding: 56px 0; }
        }

        @media (max-width: 768px) {
            .container-custom { padding: 0 16px; }
            .site-header .top-bar-custom { height: 60px; }
            .brand-logo { font-size: 20px; }
            .brand-logo .logo-mark { width: 28px; height: 28px; font-size: 15px; }
            .nav-links { display: none; }
            .lang-toggle { display: none; }
            .hamburger-btn { display: block; }
            .mobile-drawer { display: flex; }
            .mobile-drawer.open { display: flex; }

            .category-hero { min-height: 38vh; }
            .category-hero h1 { font-size: 26px; }
            .category-hero .hero-sub { font-size: 14px; }
            .category-hero .hero-inner { padding: 40px 0 48px; }

            .section-title { font-size: 24px; }
            .section { padding: 40px 0; }
            .data-card { flex: 1 1 100%; }
            .data-card.featured { flex: 1 1 100%; }
            .feature-block { flex-direction: column; gap: 20px; }
            .feature-block.reverse { flex-direction: column; }
            .feature-block .feature-img img { aspect-ratio: 16/9; }
            .process-steps { gap: 16px; }
            .process-step { min-width: 100%; }
            .stats-strip { flex-direction: column; gap: 16px; padding: 24px 20px; }
            .stat-item .stat-num { font-size: 32px; }
            .faq-section { padding: 24px 20px; }
            .faq-question { font-size: 14px; }
            .cta-section { padding: 36px 24px; }
            .cta-section h3 { font-size: 22px; }
            .site-footer { padding: 48px 0 0; margin-top: 48px; }
            .site-footer .footer-grid { flex-direction: column; gap: 28px; }
            .site-footer .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
        }

        @media (max-width: 520px) {
            .category-hero h1 { font-size: 22px; }
            .category-hero .hero-tag { font-size: 11px; letter-spacing: 1px; }
            .category-hero { min-height: 36vh; }
            .data-card .card-title { font-size: 18px; }
            .data-card.featured .card-title { font-size: 20px; }
            .data-card .card-body { padding: 16px 18px 20px; }
            .data-card.featured .card-body { padding: 20px 18px; }
            .section-title { font-size: 22px; }
            .btn { padding: 10px 20px; font-size: 14px; }
            .pagination-wrap .page-btn { min-width: 32px; height: 32px; font-size: 12px; }
        }

/* roulang page: category3 */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            color: var(--secondary-gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        h1, h2, h3, h4, h5, h6 {
            margin: 0;
            font-weight: 600;
            line-height: 1.35;
        }

        p {
            margin: 0 0 1em;
        }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15, 61, 46, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200, 164, 93, 0.18);
            transition: background var(--transition-base);
        }

        .site-header .top-bar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            cursor: pointer;
            user-select: none;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 16px;
            font-weight: 800;
            font-family: var(--font-num);
            letter-spacing: 0;
        }

        .brand-logo:hover {
            color: #fff;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255, 255, 255, 0.78);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary-gold);
            transition: width var(--transition-base);
        }

        .nav-links li a:hover {
            color: #fff;
        }

        .nav-links li a:hover::after {
            width: 100%;
        }

        .nav-links li a.active {
            color: var(--secondary-gold);
        }

        .nav-links li a.active::after {
            width: 100%;
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            font-size: 24px;
            line-height: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary-deeper);
            z-index: 98;
            padding: 32px 24px;
            flex-direction: column;
            gap: 4px;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer a {
            color: #fff;
            font-size: 17px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: block;
        }

        .mobile-drawer a.active {
            color: var(--secondary-gold);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: block;
            }
            .mobile-drawer {
                display: flex;
            }
            .mobile-drawer:not(.open) {
                display: none;
            }
            .mobile-drawer.open {
                display: flex;
            }
        }

        @media (max-width: 640px) {
            .site-header .top-bar-custom {
                height: 60px;
                gap: 12px;
            }
            .brand-logo {
                font-size: 20px;
                letter-spacing: 1px;
            }
            .brand-logo .logo-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
        }

        /* Breadcrumb */
        .breadcrumb-section {
            background: var(--bg-warm-alt);
            border-bottom: 1px solid var(--border-soft);
            padding: 14px 0;
        }

        .breadcrumb-section .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }

        .breadcrumb-section .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .breadcrumb-section .breadcrumb-nav a:hover {
            color: var(--primary-dark);
        }

        .breadcrumb-section .breadcrumb-nav .separator {
            color: var(--border-gold);
            font-size: 12px;
        }

        .breadcrumb-section .breadcrumb-nav .current {
            color: var(--primary-dark);
            font-weight: 500;
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 45vh;
            display: flex;
            align-items: center;
            background: linear-gradient(105deg, rgba(12, 51, 39, 0.92) 0%, rgba(12, 51, 39, 0.72) 45%, rgba(12, 31, 24, 0.45) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--secondary-gold);
        }

        .page-hero .hero-inner {
            position: relative;
            z-index: 2;
            padding: 60px 0 70px;
        }

        .page-hero .hero-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary-gold);
            letter-spacing: 2px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin: 0 0 16px;
            letter-spacing: 1px;
        }

        .page-hero .hero-sub {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            max-width: 600px;
            line-height: 1.75;
        }

        @media (max-width: 640px) {
            .page-hero {
                min-height: 55vh;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-inner {
                padding: 48px 0 56px;
            }
            .page-hero .hero-sub {
                font-size: 15px;
            }
        }

        /* Section */
        .section {
            padding: 72px 0;
        }

        .section-sm {
            padding: 48px 0;
        }

        @media (max-width: 640px) {
            .section {
                padding: 48px 0;
            }
            .section-sm {
                padding: 36px 0;
            }
        }

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }

        .section-warm {
            background: var(--bg-warm-alt);
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: 1px;
            margin-bottom: 16px;
        }

        .section-title.light {
            color: var(--text-light);
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 640px;
        }

        .section-subtitle.light {
            color: rgba(245, 241, 232, 0.75);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header.centered {
            text-align: center;
        }

        .section-header.centered .section-subtitle {
            margin: 0 auto;
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 24px;
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* Cards */
        .card-grid {
            display: grid;
            gap: 24px;
        }

        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }

        .card-grid.cols-3 {
            grid-template-columns: repeat(3, 1fr);
        }

        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }

        @media (max-width: 1024px) {
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .card-grid.cols-2,
            .card-grid.cols-3,
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--secondary-gold);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card .card-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(15, 61, 46, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 20px;
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .feature-card:hover .card-icon {
            background: var(--primary-dark);
            color: var(--secondary-gold);
        }

        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: 0.5px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }

        .feature-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--secondary-gold);
            background: rgba(200, 164, 93, 0.1);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .feature-card.featured {
            border-left: 3px solid var(--secondary-gold);
        }

        @media (max-width: 640px) {
            .feature-card {
                padding: 22px 18px;
            }
            .feature-card h3 {
                font-size: 17px;
            }
        }

        /* Image card */
        .image-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .image-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }

        .image-card .card-img {
            aspect-ratio: 3/2;
            overflow: hidden;
            background: var(--bg-dark);
        }

        .image-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .image-card:hover .card-img img {
            transform: scale(1.04);
        }

        .image-card .card-body {
            padding: 20px 22px;
        }

        .image-card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
            letter-spacing: 0.4px;
            line-height: 1.45;
        }

        .image-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .image-card .card-meta {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary-dark);
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            text-align: center;
        }

        .btn-primary:hover {
            background: var(--secondary-gold);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(200, 164, 93, 0.3);
        }

        .btn-primary:focus {
            outline: 2px solid var(--secondary-gold);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary-dark);
            font-size: 15px;
            font-weight: 500;
            padding: 11px 26px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--primary-dark);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.5px;
            text-align: center;
        }

        .btn-secondary:hover {
            background: rgba(15, 61, 46, 0.06);
            color: var(--primary-dark);
            border-color: var(--secondary-gold);
        }

        .btn-secondary:focus {
            outline: 2px solid var(--secondary-gold);
            outline-offset: 2px;
        }

        .btn-gold {
            background: var(--secondary-gold);
            color: var(--primary-dark);
        }

        .btn-gold:hover {
            background: #d4b36e;
            color: var(--primary-dark);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
        }

        .btn-block {
            display: flex;
            width: 100%;
            justify-content: center;
        }

        @media (max-width: 640px) {
            .btn-primary,
            .btn-secondary {
                font-size: 14px;
                padding: 10px 22px;
            }
        }

        /* Stats */
        .stats-row {
            display: grid;
            gap: 20px;
            grid-template-columns: repeat(4, 1fr);
        }

        .stats-row .stat-item {
            text-align: center;
            padding: 24px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-card);
            border: 1px solid rgba(200, 164, 93, 0.15);
        }

        .stats-row .stat-number {
            font-size: 44px;
            font-weight: 700;
            font-family: var(--font-num);
            color: var(--secondary-gold);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .stats-row .stat-label {
            font-size: 14px;
            color: rgba(245, 241, 232, 0.75);
            margin-top: 8px;
        }

        @media (max-width: 1024px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stats-row .stat-number {
                font-size: 32px;
            }
        }

        /* List styles */
        .check-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .check-list li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 10px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 2px;
            color: var(--secondary-gold);
            font-size: 14px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-gold);
        }

        .faq-item .faq-question {
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: #fff;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-base);
            letter-spacing: 0.3px;
        }

        .faq-item .faq-question .arrow {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary-gold);
            font-size: 12px;
            transition: all var(--transition-base);
        }

        .faq-item .faq-question:hover,
        .faq-item .faq-question[aria-expanded="true"] {
            background: var(--bg-warm-alt);
        }

        .faq-item .faq-question[aria-expanded="true"] .arrow {
            background: var(--secondary-gold);
            color: var(--primary-dark);
            transform: rotate(180deg);
        }

        .faq-item .faq-answer {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            border-top: 1px dashed var(--border-soft);
            padding-top: 14px;
            margin: 0 22px;
        }

        /* CTA Section */
        .cta-section {
            background: var(--primary-dark);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.08);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            left: -60px;
            bottom: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(200, 164, 93, 0.05);
        }

        .cta-section .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .cta-section p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            line-height: 1.75;
        }

        .cta-section .btn-gold {
            font-size: 16px;
            padding: 14px 36px;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 48px 0;
            }
            .cta-section h2 {
                font-size: 24px;
            }
        }

        /* Testimonials */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition-base);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }

        .testimonial-card .quote-mark {
            font-size: 36px;
            color: var(--secondary-gold);
            font-family: var(--font-serif);
            line-height: 1;
            margin-bottom: 12px;
        }

        .testimonial-card blockquote {
            font-size: 14px;
            color: var(--text-main);
            line-height: 1.75;
            margin: 0 0 16px;
            font-style: normal;
        }

        .testimonial-card .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .testimonial-card .author-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-dark);
            color: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            flex-shrink: 0;
        }

        .testimonial-card .author-info {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .testimonial-card .author-info .name {
            font-weight: 600;
            color: var(--text-main);
            font-size: 14px;
        }

        @media (max-width: 1024px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Process */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-step {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            position: relative;
            transition: all var(--transition-base);
        }

        .process-step:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }

        .process-step .step-number {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-dark);
            color: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            font-family: var(--font-num);
            margin: 0 auto 14px;
        }

        .process-step h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        @media (max-width: 1024px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .process-steps {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(245, 241, 232, 0.75);
            padding: 56px 0 24px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .site-footer .footer-logo {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            margin-bottom: 14px;
        }

        .site-footer .footer-brand p {
            font-size: 13px;
            color: rgba(245, 241, 232, 0.65);
            line-height: 1.75;
            margin: 0;
            max-width: 300px;
        }

        .site-footer .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--secondary-gold);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .site-footer .footer-col ul li {
            margin-bottom: 10px;
        }

        .site-footer .footer-col ul li a {
            font-size: 13px;
            color: rgba(245, 241, 232, 0.65);
            transition: color var(--transition-base);
        }

        .site-footer .footer-col ul li a:hover {
            color: var(--secondary-gold);
        }

        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            font-size: 12px;
            color: rgba(245, 241, 232, 0.5);
            align-items: center;
            justify-content: space-between;
        }

        .site-footer .footer-bottom span {
            white-space: nowrap;
        }

        .site-footer .footer-bottom a {
            color: rgba(245, 241, 232, 0.5);
            transition: color var(--transition-base);
        }

        .site-footer .footer-bottom a:hover {
            color: var(--secondary-gold);
        }

        @media (max-width: 1024px) {
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .site-footer {
                padding: 40px 0 16px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* Misc */
        .bg-white {
            background: #fff;
        }

        .text-center {
            text-align: center;
        }

        .text-gold {
            color: var(--secondary-gold);
        }

        .mt-0 {
            margin-top: 0;
        }

        .mb-0 {
            margin-bottom: 0;
        }

        .pagination-custom {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .pagination-custom a,
        .pagination-custom span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 10px;
            border-radius: 6px;
            font-size: 14px;
            border: 1px solid var(--border-soft);
            background: #fff;
            color: var(--text-secondary);
            transition: all var(--transition-base);
        }

        .pagination-custom a:hover {
            border-color: var(--secondary-gold);
            color: var(--primary-dark);
            background: var(--bg-warm-alt);
        }

        .pagination-custom .current {
            background: var(--primary-dark);
            color: var(--secondary-gold);
            border-color: var(--primary-dark);
            font-weight: 600;
        }

        .badge-pill {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--primary-dark);
            background: rgba(15, 61, 46, 0.08);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.5px;
            border: 1px solid rgba(15, 61, 46, 0.12);
        }

        .divider-gold {
            width: 48px;
            height: 3px;
            background: var(--secondary-gold);
            border-radius: 2px;
            margin-bottom: 16px;
        }

/* roulang page: category4 */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }
        html { scroll-behavior: smooth; }
        * { box-sizing: border-box; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
        a:hover { color: var(--secondary-gold); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container-custom { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== Header ===== */
        .site-header {
            position: sticky; top: 0; z-index: 100;
            background: rgba(15,61,46,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200,164,93,0.18);
            transition: background var(--transition-base);
        }
        .site-header .top-bar-custom {
            display: flex; align-items: center; justify-content: space-between;
            height: 68px; gap: 24px;
        }
        .brand-logo {
            display: flex; align-items: center; gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px; font-weight: 700;
            color: #fff; letter-spacing: 1.5px;
            cursor: pointer; user-select: none;
            white-space: nowrap;
        }
        .brand-logo .logo-mark {
            width: 32px; height: 32px; border-radius: 50%;
            background: var(--secondary-gold);
            display: flex; align-items: center; justify-content: center;
            color: var(--primary-dark); font-size: 18px; font-weight: 800;
            font-family: var(--font-num); letter-spacing: 0;
            flex-shrink: 0;
        }
        .brand-logo:hover { color: #fff; }
        .nav-links {
            display: flex; align-items: center; gap: 24px;
            list-style: none; margin: 0; padding: 0;
            flex-wrap: wrap;
        }
        .nav-links li a {
            color: rgba(255,255,255,0.78);
            font-size: 14px; font-weight: 500; letter-spacing: 0.5px;
            padding: 6px 2px; position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }
        .nav-links li a::after {
            content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px;
            background: var(--secondary-gold); transition: width var(--transition-base);
        }
        .nav-links li a:hover { color: #fff; }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--secondary-gold); }
        .nav-links li a.active::after { width: 100%; }
        .lang-toggle {
            display: inline-flex; align-items: center; gap: 4px;
            border: 1px solid rgba(200,164,93,0.45); border-radius: 20px;
            padding: 5px 14px; color: #fff; font-size: 13px;
            cursor: pointer; transition: all var(--transition-base);
            white-space: nowrap;
        }
        .lang-toggle:hover { background: rgba(200,164,93,0.15); color: #fff; }
        .hamburger-btn {
            display: none; background: none; border: none; cursor: pointer;
            padding: 8px; color: #fff; font-size: 24px; line-height: 1;
        }
        .mobile-drawer {
            display: none; position: fixed; top: 68px; left: 0; right: 0; bottom: 0;
            background: var(--primary-deeper); z-index: 99;
            padding: 32px 24px; flex-direction: column; gap: 4px;
            transform: translateX(100%); transition: transform 0.3s ease;
            overflow-y: auto;
        }
        .mobile-drawer.open { transform: translateX(0); }
        .mobile-drawer a {
            color: #fff; font-size: 17px; padding: 14px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1); display: block;
            text-decoration: none;
        }
        .mobile-drawer a.active { color: var(--secondary-gold); }
        .mobile-drawer .lang-toggle-mobile {
            margin-top: auto; align-self: flex-start;
            border: 1px solid rgba(200,164,93,0.45); border-radius: 20px;
            padding: 8px 16px; color: #fff; font-size: 14px;
            text-decoration: none; border-bottom: 1px solid rgba(200,164,93,0.45);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border-soft);
            padding: 12px 0;
        }
        .breadcrumb-bar ul {
            list-style: none; margin: 0; padding: 0;
            display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
        }
        .breadcrumb-bar ul li {
            font-size: 13px; color: var(--text-secondary);
        }
        .breadcrumb-bar ul li a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        .breadcrumb-bar ul li a:hover { color: var(--secondary-gold); }
        .breadcrumb-bar ul li.current { color: var(--secondary-gold); font-weight: 500; }
        .breadcrumb-bar ul li.sep { color: rgba(0,0,0,0.3); }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 45vh;
            display: flex; align-items: center;
            background: linear-gradient(105deg, rgba(12,51,39,0.92) 0%, rgba(12,51,39,0.72) 50%, rgba(12,31,24,0.45) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
            border-bottom: 1px solid var(--border-gold);
        }
        .category-hero::before {
            content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
            background: var(--secondary-gold);
        }
        .category-hero .category-hero-inner {
            position: relative; z-index: 2;
            padding: 60px 0 70px;
        }
        .category-hero .category-tag {
            display: inline-block; font-size: 13px; font-weight: 500;
            color: var(--secondary-gold); letter-spacing: 2px; margin-bottom: 16px;
            text-transform: uppercase;
            border: 1px solid var(--border-gold); border-radius: 20px;
            padding: 4px 16px;
            background: rgba(200,164,93,0.08);
        }
        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px; font-weight: 700; color: #fff;
            line-height: 1.3; margin: 0 0 16px; letter-spacing: 1px;
            max-width: 680px;
        }
        .category-hero .category-hero-sub {
            font-size: 16px; color: rgba(255,255,255,0.82);
            max-width: 560px;
            line-height: 1.8;
        }
        .category-hero .hero-cta-row {
            display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap;
        }

        /* ===== Section Common ===== */
        .section-pad { padding: 72px 0; }
        .section-pad-sm { padding: 48px 0; }
        .section-title {
            font-family: var(--font-serif);
            font-size: 30px; font-weight: 700; color: var(--primary-dark);
            line-height: 1.35; margin: 0 0 12px; letter-spacing: 0.5px;
        }
        .section-desc {
            font-size: 15px; color: var(--text-secondary);
            max-width: 680px; line-height: 1.8; margin-bottom: 36px;
        }
        .section-kicker {
            display: inline-block; font-size: 13px; font-weight: 600;
            color: var(--secondary-gold); letter-spacing: 2px; margin-bottom: 10px;
            text-transform: uppercase;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex; align-items: center; justify-content: center; gap: 8px;
            padding: 12px 28px; border-radius: var(--radius-btn);
            font-size: 15px; font-weight: 600; cursor: pointer;
            border: 2px solid transparent; transition: all var(--transition-base);
            text-decoration: none; letter-spacing: 0.5px;
        }
        .btn-primary {
            background: var(--secondary-gold); color: var(--primary-deeper);
            border-color: var(--secondary-gold);
        }
        .btn-primary:hover {
            background: #d4b06a; color: var(--primary-deeper);
            border-color: #d4b06a; transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(200,164,93,0.3);
        }
        .btn-outline {
            background: transparent; color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-outline:hover {
            background: rgba(15,61,46,0.06); color: var(--primary-dark);
            transform: translateY(-1px);
        }
        .btn-light {
            background: rgba(255,255,255,0.12); color: #fff;
            border-color: rgba(255,255,255,0.35);
        }
        .btn-light:hover {
            background: rgba(255,255,255,0.2); color: #fff;
            transform: translateY(-1px);
        }
        .btn:focus, .btn:focus-visible {
            outline: 2px solid var(--secondary-gold);
            outline-offset: 2px;
        }

        /* ===== Feature Cards ===== */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .solution-card {
            background: #fff; border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex; flex-direction: column;
        }
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
        }
        .solution-card .card-img-wrap {
            position: relative;
            padding-top: 56%;
            overflow: hidden;
        }
        .solution-card .card-img-wrap img {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            object-fit: cover; transition: transform 0.5s ease;
        }
        .solution-card:hover .card-img-wrap img { transform: scale(1.04); }
        .solution-card .card-img-placeholder {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, #0F3D2E 0%, #1a5a44 100%);
            display: flex; align-items: center; justify-content: center;
            color: var(--secondary-gold); font-size: 48px; font-weight: 700;
            font-family: var(--font-num); letter-spacing: 2px;
        }
        .solution-card .card-body {
            padding: 24px 24px 28px; display: flex; flex-direction: column; flex: 1;
        }
        .solution-card .card-label {
            display: inline-block; font-size: 12px; font-weight: 600;
            color: var(--primary-dark); letter-spacing: 0.5px;
            background: rgba(200,164,93,0.15); border: 1px solid var(--border-gold);
            border-radius: 20px; padding: 3px 14px; margin-bottom: 12px;
            align-self: flex-start;
        }
        .solution-card .card-title {
            font-family: var(--font-serif);
            font-size: 20px; font-weight: 700; color: var(--text-main);
            line-height: 1.4; margin: 0 0 10px;
        }
        .solution-card .card-desc {
            font-size: 14px; color: var(--text-secondary);
            line-height: 1.75; margin-bottom: 16px; flex: 1;
        }
        .solution-card .card-meta {
            font-size: 13px; color: rgba(0,0,0,0.4);
            display: flex; align-items: center; gap: 12px;
            border-top: 1px solid var(--border-soft);
            padding-top: 14px;
        }
        .solution-card .card-link {
            font-size: 14px; font-weight: 600; color: var(--primary-dark);
            display: inline-flex; align-items: center; gap: 6px;
            transition: color var(--transition-base);
        }
        .solution-card .card-link:hover { color: var(--secondary-gold); }
        .solution-card.featured {
            grid-column: span 2;
            flex-direction: row;
        }
        .solution-card.featured .card-img-wrap {
            flex: 1;
            padding-top: 0;
            min-height: 280px;
        }
        .solution-card.featured .card-img-wrap img {
            width: 100%; height: 100%; object-fit: cover;
        }
        .solution-card.featured .card-body {
            flex: 1;
            justify-content: center;
            padding: 32px;
        }

        /* ===== Scene Cards ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .scene-card {
            background: #fff; border: 1px solid var(--border-soft);
            border-radius: 10px; padding: 24px 20px;
            transition: all var(--transition-base);
            text-align: left;
        }
        .scene-card:hover {
            border-color: var(--border-gold);
            box-shadow: var(--shadow-card);
            transform: translateY(-3px);
        }
        .scene-card .scene-icon {
            width: 44px; height: 44px; border-radius: 10px;
            background: rgba(15,61,46,0.06);
            display: flex; align-items: center; justify-content: center;
            color: var(--primary-dark); font-size: 20px;
            margin-bottom: 14px;
        }
        .scene-card h3 {
            font-size: 16px; font-weight: 700; color: var(--text-main);
            margin: 0 0 8px; line-height: 1.5;
        }
        .scene-card p {
            font-size: 14px; color: var(--text-secondary);
            line-height: 1.7; margin: 0;
        }

        /* ===== Process / Steps ===== */
        .process-flow {
            display: flex; gap: 0; align-items: stretch;
            background: #fff; border-radius: var(--radius-card);
            border: 1px solid var(--border-soft);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .process-step {
            flex: 1; padding: 28px 24px;
            position: relative; border-right: 1px solid var(--border-soft);
            transition: background var(--transition-base);
        }
        .process-step:last-child { border-right: none; }
        .process-step:hover { background: var(--bg-warm-alt); }
        .process-step .step-num {
            font-family: var(--font-num); font-size: 40px; font-weight: 800;
            color: rgba(200,164,93,0.35); line-height: 1; margin-bottom: 12px;
        }
        .process-step h3 {
            font-size: 16px; font-weight: 700; color: var(--text-main);
            margin: 0 0 8px;
        }
        .process-step p {
            font-size: 13px; color: var(--text-secondary);
            line-height: 1.7; margin: 0;
        }

        /* ===== Stats ===== */
        .stats-band {
            background: var(--bg-dark);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            border: 1px solid rgba(200,164,93,0.15);
        }
        .stat-item { text-align: center; }
        .stat-item .stat-num {
            font-family: var(--font-num); font-size: 52px; font-weight: 800;
            color: var(--secondary-gold); line-height: 1.1; letter-spacing: -1px;
        }
        .stat-item .stat-label {
            font-size: 14px; color: rgba(255,255,255,0.7);
            margin-top: 8px;
        }

        /* ===== Tabs / Badge Tags ===== */
        .badge-tag {
            display: inline-flex; align-items: center; gap: 6px;
            font-size: 12px; font-weight: 500; color: var(--primary-dark);
            background: rgba(200,164,93,0.12); border: 1px solid var(--border-gold);
            border-radius: 20px; padding: 4px 14px;
            margin: 0 8px 8px 0;
        }
        .badge-tag i { font-size: 11px; color: var(--secondary-gold); }

        /* ===== FAQ Accordion ===== */
        .faq-accordion {
            list-style: none; margin: 0; padding: 0;
            border-radius: var(--radius-card); overflow: hidden;
        }
        .faq-accordion .faq-item {
            background: #fff; border: 1px solid var(--border-soft);
            border-radius: 8px; margin-bottom: 12px;
            overflow: hidden; transition: all var(--transition-base);
        }
        .faq-accordion .faq-item:hover { border-color: var(--border-gold); }
        .faq-accordion .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            padding: 18px 22px; cursor: pointer;
            font-size: 16px; font-weight: 600; color: var(--text-main);
            background: #fff; border: none; width: 100%;
            text-align: left; transition: color var(--transition-base);
            gap: 16px;
        }
        .faq-accordion .faq-question:hover { color: var(--primary-dark); }
        .faq-accordion .faq-question .faq-icon {
            flex-shrink: 0; width: 24px; height: 24px;
            border-radius: 50%; border: 1px solid var(--border-gold);
            display: flex; align-items: center; justify-content: center;
            color: var(--secondary-gold); font-size: 12px;
            transition: transform var(--transition-base);
        }
        .faq-accordion .faq-item.open .faq-icon { transform: rotate(180deg); }
        .faq-accordion .faq-answer {
            max-height: 0; overflow: hidden;
            transition: max-height 0.35s ease;
            background: var(--bg-warm-alt);
        }
        .faq-accordion .faq-answer-inner {
            padding: 4px 22px 22px; font-size: 14px;
            color: var(--text-secondary); line-height: 1.75;
        }
        .faq-accordion .faq-item.open .faq-answer { max-height: 400px; }

        /* ===== CTA Section ===== */
        .cta-band {
            background: var(--primary-deeper);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            display: flex; align-items: center; justify-content: space-between;
            gap: 32px; flex-wrap: wrap;
            border: 1px solid rgba(200,164,93,0.2);
        }
        .cta-band h2 {
            font-family: var(--font-serif);
            font-size: 28px; font-weight: 700; color: #fff;
            margin: 0 0 8px; line-height: 1.35;
        }
        .cta-band p {
            color: rgba(255,255,255,0.72); font-size: 15px; margin: 0;
        }
        .cta-band .btn { flex-shrink: 0; }

        /* ===== Pagination ===== */
        .pagination-custom {
            display: flex; align-items: center; justify-content: center;
            gap: 8px; list-style: none; margin: 32px 0 0; padding: 0;
        }
        .pagination-custom li a, .pagination-custom li span {
            display: flex; align-items: center; justify-content: center;
            width: 40px; height: 40px; border-radius: 8px;
            font-size: 14px; font-weight: 500;
            border: 1px solid var(--border-soft); background: #fff;
            color: var(--text-main); transition: all var(--transition-base);
            text-decoration: none;
        }
        .pagination-custom li a:hover { border-color: var(--border-gold); color: var(--primary-dark); }
        .pagination-custom li.current span {
            background: var(--secondary-gold); color: var(--primary-deeper);
            border-color: var(--secondary-gold); font-weight: 700;
        }
        .pagination-custom li.disabled span {
            color: rgba(0,0,0,0.25); cursor: default; background: #f5f5f5;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
            margin-top: 72px;
            border-top: 1px solid rgba(200,164,93,0.15);
        }
        .site-footer .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px; padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .site-footer .footer-logo {
            font-family: var(--font-serif);
            font-size: 24px; font-weight: 700; color: #fff;
            letter-spacing: 1.5px; margin-bottom: 12px;
        }
        .site-footer .footer-brand p {
            font-size: 14px; line-height: 1.75;
            color: rgba(255,255,255,0.6); max-width: 320px;
        }
        .site-footer .footer-col h4 {
            font-size: 14px; font-weight: 700; color: #fff;
            letter-spacing: 1px; margin: 0 0 16px;
            text-transform: uppercase;
        }
        .site-footer .footer-col ul {
            list-style: none; margin: 0; padding: 0;
        }
        .site-footer .footer-col ul li { margin-bottom: 8px; }
        .site-footer .footer-col ul li a {
            font-size: 14px; color: rgba(255,255,255,0.6);
            text-decoration: none; transition: color var(--transition-base);
        }
        .site-footer .footer-col ul li a:hover { color: var(--secondary-gold); }
        .site-footer .footer-bottom {
            padding: 20px 0 24px;
            display: flex; flex-wrap: wrap; gap: 8px 20px;
            align-items: center; font-size: 13px;
            color: rgba(255,255,255,0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255,255,255,0.5);
            text-decoration: none;
        }
        .site-footer .footer-bottom a:hover { color: var(--secondary-gold); }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .solution-grid { grid-template-columns: repeat(2, 1fr); }
            .solution-card.featured { grid-column: span 2; }
            .scene-grid { grid-template-columns: repeat(2, 1fr); }
            .stats-band { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .process-flow { flex-wrap: wrap; }
            .process-step { flex: 1 1 45%; border-right: none; border-bottom: 1px solid var(--border-soft); }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .category-hero h1 { font-size: 34px; }
        }

        @media screen and (max-width: 768px) {
            .nav-links { display: none; }
            .lang-toggle { display: none; }
            .hamburger-btn { display: block; }
            .mobile-drawer { display: flex; }
            .mobile-drawer.open { display: flex; }
            .mobile-drawer { display: none !important; }
            .mobile-drawer.open { display: flex !important; }
            .category-hero { min-height: 50vh; }
            .category-hero h1 { font-size: 28px; }
            .category-hero .category-hero-sub { font-size: 14px; max-width: 100%; }
            .section-pad { padding: 48px 0; }
            .section-title { font-size: 24px; }
            .solution-grid { grid-template-columns: 1fr; }
            .solution-card.featured { grid-column: span 1; flex-direction: column; }
            .solution-card.featured .card-img-wrap { padding-top: 56%; min-height: auto; }
            .scene-grid { grid-template-columns: 1fr; }
            .stats-band { grid-template-columns: repeat(2, 1fr); padding: 28px 20px; }
            .stat-item .stat-num { font-size: 38px; }
            .process-flow { flex-direction: column; }
            .process-step { flex: 1 1 100%; border-right: none; border-bottom: 1px solid var(--border-soft); }
            .cta-band { flex-direction: column; text-align: left; align-items: flex-start; padding: 40px 24px; }
            .site-footer .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
            .site-header .top-bar-custom { height: 60px; }
            .mobile-drawer { top: 60px; }
            .container-custom { padding: 0 16px; }
        }

        @media screen and (max-width: 520px) {
            .category-hero h1 { font-size: 24px; }
            .stats-band { grid-template-columns: 1fr 1fr; gap: 12px; padding: 20px 16px; }
            .stat-item .stat-num { font-size: 32px; }
            .btn { padding: 10px 20px; font-size: 14px; }
            .breadcrumb-bar ul li { font-size: 12px; }
        }

/* roulang page: category5 */
:root {
            --primary-dark: #0F3D2E;
            --primary-deeper: #0C3327;
            --secondary-gold: #C8A45D;
            --bg-warm: #F7F4EE;
            --bg-warm-alt: #F5F1E8;
            --bg-dark: #0C1F18;
            --text-main: #202020;
            --text-secondary: #6A6A6A;
            --text-light: #F5F1E8;
            --border-soft: rgba(0,0,0,0.06);
            --border-gold: rgba(200,164,93,0.35);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 10px;
            --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
            --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
            --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
            --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
            --transition-base: 0.25s ease;
            --max-width: 1200px;
        }

        html { scroll-behavior: smooth; }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-main);
            background: var(--bg-warm);
            margin: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
        a:hover { color: var(--secondary-gold); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }

        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(15,61,46,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(200,164,93,0.18);
            transition: background var(--transition-base);
        }

        .site-header .top-bar-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            cursor: pointer;
            user-select: none;
            flex-shrink: 0;
        }

        .brand-logo .logo-mark {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--secondary-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-size: 18px;
            font-weight: 800;
            font-family: var(--font-num);
            letter-spacing: 0;
        }

        .brand-logo:hover { color: #fff; }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links li a {
            color: rgba(255,255,255,0.78);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.5px;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-links li a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--secondary-gold);
            transition: width var(--transition-base);
        }

        .nav-links li a:hover { color: #fff; }
        .nav-links li a:hover::after { width: 100%; }
        .nav-links li a.active { color: var(--secondary-gold); }
        .nav-links li a.active::after { width: 100%; }

        .lang-toggle {
            display: flex;
            align-items: center;
            gap: 4px;
            border: 1px solid rgba(200,164,93,0.45);
            border-radius: 20px;
            padding: 6px 14px;
            color: #fff;
            font-size: 13px;
            white-space: nowrap;
            flex-shrink: 0;
            transition: background var(--transition-base);
        }

        .lang-toggle:hover {
            background: rgba(200,164,93,0.15);
            color: #fff;
        }

        .hamburger-btn {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
            color: #fff;
            font-size: 24px;
            line-height: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--primary-deeper);
            z-index: 99;
            padding: 32px 24px;
            flex-direction: column;
            gap: 20px;
            transform: translateX(100%);
            transition: transform 0.3s ease;
            overflow-y: auto;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer a {
            color: #fff;
            font-size: 18px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            display: block;
        }

        .mobile-drawer a.active { color: var(--secondary-gold); }

        .mobile-drawer .lang-toggle-mobile {
            margin-top: auto;
            align-self: flex-start;
            border: 1px solid rgba(200,164,93,0.45);
            border-radius: 20px;
            padding: 8px 16px;
            color: #fff;
            font-size: 14px;
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            min-height: 40vh;
            display: flex;
            align-items: center;
            background: linear-gradient(105deg, rgba(12,51,39,0.92) 0%, rgba(12,51,39,0.72) 45%, rgba(12,31,24,0.5) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 5px;
            background: var(--secondary-gold);
        }

        .category-hero .hero-inner {
            position: relative;
            z-index: 2;
            padding: 48px 0 56px;
        }

        .category-hero .hero-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--secondary-gold);
            letter-spacing: 2px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .category-hero h1 {
            font-family: var(--font-serif);
            font-size: 40px;
            font-weight: 700;
            color: #fff;
            line-height: 1.3;
            margin: 0 0 12px;
            letter-spacing: 1px;
        }

        .category-hero .hero-sub {
            font-size: 16px;
            color: rgba(255,255,255,0.85);
            max-width: 560px;
            line-height: 1.7;
            margin: 0;
        }

        /* Breadcrumbs */
        .breadcrumb-section {
            padding: 20px 0;
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border-soft);
        }

        .breadcrumb-section nav {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .breadcrumb-section nav a {
            color: var(--primary-dark);
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .breadcrumb-section nav a:hover { color: var(--secondary-gold); }

        .breadcrumb-section nav .separator {
            margin: 0 10px;
            color: var(--text-secondary);
            opacity: 0.6;
        }

        .breadcrumb-section nav .current {
            color: var(--secondary-gold);
            font-weight: 600;
            pointer-events: none;
        }

        /* Section Common */
        .section-block {
            padding: 72px 0;
        }

        .section-block.alt-bg {
            background: var(--bg-warm-alt);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary-gold);
            letter-spacing: 2px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-family: var(--font-serif);
            font-size: 32px;
            font-weight: 700;
            color: var(--primary-dark);
            line-height: 1.35;
            margin: 0 0 12px;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin: 0;
        }

        /* Feature Card */
        .feature-card {
            position: relative;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            border-color: var(--border-gold);
            transform: translateY(-4px);
        }

        .feature-card .card-cover {
            position: relative;
            aspect-ratio: 16 / 7;
            overflow: hidden;
            background: linear-gradient(135deg, var(--primary-dark) 0%, #1a5c44 100%);
        }

        .feature-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .feature-card:hover .card-cover img { transform: scale(1.04); }

        .feature-card .card-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(12,31,24,0.7) 0%, transparent 50%);
        }

        .feature-card .card-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 3;
            background: rgba(200,164,93,0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            padding: 5px 14px;
            border-radius: 20px;
        }

        .feature-card .card-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .feature-card .card-body h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .feature-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
            flex: 1;
        }

        .feature-card .card-meta {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .feature-card .card-meta i {
            color: var(--secondary-gold);
            margin-right: 4px;
        }

        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--secondary-gold);
            color: var(--secondary-gold);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            transition: all var(--transition-base);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-gold:hover {
            background: var(--secondary-gold);
            color: #fff;
            border-color: var(--secondary-gold);
        }

        /* Solution Cards Grid */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }

        .solution-grid .feature-card.feature-wide {
            grid-column: span 8;
        }

        .solution-grid .feature-card:not(.feature-wide) {
            grid-column: span 4;
        }

        .solution-grid .feature-card .card-cover {
            aspect-ratio: 16 / 9;
        }

        .solution-grid .feature-card.feature-wide .card-cover {
            aspect-ratio: 16 / 7;
        }

        /* Pagination */
        .pagination-section {
            padding: 32px 0 48px;
            text-align: center;
        }

        .custom-pagination {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: 40px;
            padding: 6px 10px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.04);
        }

        .custom-pagination .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            transition: all var(--transition-base);
            padding: 0 8px;
        }

        .custom-pagination .page-link:hover {
            background: rgba(200,164,93,0.12);
            color: var(--secondary-gold);
        }

        .custom-pagination .page-link.active {
            background: var(--secondary-gold);
            color: #fff;
            font-weight: 700;
        }

        .custom-pagination .page-link.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        /* FAQ */
        .faq-section {
            padding: 72px 0;
            background: var(--bg-warm-alt);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border-soft);
            border-radius: var(--radius-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: var(--border-gold);
            box-shadow: 0 6px 20px rgba(0,0,0,0.06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--primary-dark);
            gap: 16px;
            user-select: none;
            transition: background var(--transition-base);
        }

        .faq-question:hover { background: rgba(200,164,93,0.06); }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary-gold);
            font-size: 12px;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--secondary-gold);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deeper) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 2px solid rgba(200,164,93,0.2);
            pointer-events: none;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        .cta-text h2 {
            font-family: var(--font-serif);
            font-size: 30px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .cta-text p {
            font-size: 15px;
            color: rgba(255,255,255,0.75);
            margin: 0;
            line-height: 1.7;
            max-width: 480px;
        }

        .btn-gold {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--secondary-gold);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-gold:hover {
            background: #b58f43;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(200,164,93,0.35);
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            padding: 56px 0 24px;
            color: rgba(255,255,255,0.75);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1.5px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            margin: 0;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,0.6);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover { color: var(--secondary-gold); }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: rgba(255,255,255,0.45);
        }

        .footer-bottom a {
            color: rgba(255,255,255,0.5);
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover { color: var(--secondary-gold); }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links { gap: 18px; }
            .nav-links li a { font-size: 13px; }
            .category-hero h1 { font-size: 34px; }
            .section-header h2 { font-size: 28px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
            .solution-grid .feature-card.feature-wide { grid-column: span 12; }
            .solution-grid .feature-card:not(.feature-wide) { grid-column: span 6; }
        }

        @media (max-width: 768px) {
            .nav-links { display: none; }
            .hamburger-btn { display: block; }
            .mobile-drawer { display: flex; }
            .mobile-drawer.open { display: flex; }
            .category-hero { min-height: 35vh; }
            .category-hero h1 { font-size: 28px; }
            .category-hero .hero-sub { font-size: 14px; }
            .section-block { padding: 48px 0; }
            .section-header h2 { font-size: 24px; }
            .solution-grid .feature-card.feature-wide { grid-column: span 12; }
            .solution-grid .feature-card:not(.feature-wide) { grid-column: span 12; }
            .feature-card .card-cover, .feature-card.feature-wide .card-cover { aspect-ratio: 16 / 10; }
            .cta-inner { flex-direction: column; text-align: center; }
            .cta-text p { max-width: 100%; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
            .custom-pagination .page-link { min-width: 34px; height: 34px; font-size: 13px; }
        }

        @media (max-width: 520px) {
            .container-custom { padding: 0 14px; }
            .brand-logo { font-size: 20px; }
            .brand-logo .logo-mark { width: 28px; height: 28px; font-size: 15px; }
            .category-hero { min-height: 30vh; }
            .category-hero h1 { font-size: 24px; }
            .breadcrumb-section nav { font-size: 12px; }
            .breadcrumb-section nav .separator { margin: 0 6px; }
            .section-block { padding: 36px 0; }
            .faq-question { font-size: 14px; padding: 14px 16px; }
            .faq-answer p { font-size: 13px; }
            .btn-gold { font-size: 14px; padding: 12px 22px; }
            .btn-outline-gold { font-size: 13px; padding: 8px 16px; }
            .feature-card .card-body h3 { font-size: 18px; }
            .section-header h2 { font-size: 21px; }
            .cta-text h2 { font-size: 24px; }
        }

/* roulang page: category6 */
:root {
        --primary-dark: #0F3D2E;
        --primary-deeper: #0C3327;
        --secondary-gold: #C8A45D;
        --bg-warm: #F7F4EE;
        --bg-warm-alt: #F5F1E8;
        --bg-dark: #0C1F18;
        --text-main: #202020;
        --text-secondary: #6A6A6A;
        --text-light: #F5F1E8;
        --border-soft: rgba(0,0,0,0.06);
        --border-gold: rgba(200,164,93,0.35);
        --radius-card: 12px;
        --radius-btn: 6px;
        --radius-img: 10px;
        --shadow-card: 0 8px 24px rgba(0,0,0,0.06);
        --shadow-card-hover: 0 16px 40px rgba(0,0,0,0.12);
        --font-serif: 'Noto Serif SC','Source Han Serif SC','Songti SC',serif;
        --font-sans: 'PingFang SC','Microsoft YaHei','Helvetica Neue',sans-serif;
        --font-num: 'Inter','Helvetica Neue',Arial,sans-serif;
        --transition-base: 0.25s ease;
        --max-width: 1200px;
    }

    * { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.8;
        color: var(--text-main);
        background: var(--bg-warm);
        margin: 0;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
    a:hover { color: var(--secondary-gold); }
    img { max-width: 100%; height: auto; display: block; }
    button, input, textarea, select { font-family: inherit; font-size: inherit; }
    ul { margin: 0; padding: 0; list-style: none; }

    .container-custom {
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    @media (max-width: 640px) {
        .container-custom { padding: 0 16px; }
    }

    /* Header / Navigation */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(15,61,46,0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid rgba(200,164,93,0.18);
        transition: background var(--transition-base);
    }

    .site-header .top-bar-custom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        gap: 24px;
    }

    .brand-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-family: var(--font-serif);
        font-size: 24px;
        font-weight: 700;
        color: #fff;
        letter-spacing: 1.5px;
        cursor: pointer;
        user-select: none;
        flex-shrink: 0;
    }

    .brand-logo .logo-mark {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        background: var(--secondary-gold);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary-dark);
        font-size: 18px;
        font-weight: 800;
        font-family: var(--font-num);
        letter-spacing: 0;
    }

    .brand-logo:hover { color: #fff; }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 24px;
        list-style: none;
        margin: 0;
        padding: 0;
        flex-wrap: wrap;
    }

    .nav-links li a {
        color: rgba(255,255,255,0.78);
        font-size: 14px;
        font-weight: 500;
        letter-spacing: 0.5px;
        padding: 6px 2px;
        position: relative;
        transition: color var(--transition-base);
        white-space: nowrap;
    }

    .nav-links li a::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--secondary-gold);
        transition: width var(--transition-base);
    }

    .nav-links li a:hover { color: #fff; }
    .nav-links li a:hover::after { width: 100%; }
    .nav-links li a.active { color: var(--secondary-gold); }
    .nav-links li a.active::after { width: 100%; }

    .lang-toggle-desktop {
        display: inline-flex;
        align-items: center;
        border: 1px solid rgba(200,164,93,0.45);
        border-radius: 20px;
        padding: 4px 14px;
        color: #fff;
        font-size: 13px;
        gap: 6px;
        transition: background var(--transition-base);
        flex-shrink: 0;
        cursor: pointer;
        user-select: none;
    }

    .lang-toggle-desktop:hover {
        background: rgba(200,164,93,0.15);
        color: #fff;
    }

    .hamburger-btn {
        display: none;
        background: none;
        border: none;
        cursor: pointer;
        padding: 8px;
        color: #fff;
        font-size: 24px;
        line-height: 1;
    }

    .mobile-drawer {
        display: none;
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--primary-deeper);
        z-index: 99;
        padding: 32px 24px;
        flex-direction: column;
        gap: 20px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
    }

    .mobile-drawer.open { transform: translateX(0); }

    .mobile-drawer a {
        color: #fff;
        font-size: 18px;
        padding: 12px 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        display: block;
    }

    .mobile-drawer a.active { color: var(--secondary-gold); }

    .mobile-drawer .lang-toggle-mobile {
        margin-top: auto;
        align-self: flex-start;
        border: 1px solid rgba(200,164,93,0.45);
        border-radius: 20px;
        padding: 8px 16px;
        color: #fff;
        font-size: 14px;
    }

    @media (max-width: 1024px) {
        .nav-links { display: none; }
        .lang-toggle-desktop { display: none; }
        .hamburger-btn { display: block; }
        .mobile-drawer { display: flex; }
    }

    /* Hero */
    .hero {
        position: relative;
        min-height: 52vh;
        display: flex;
        align-items: center;
        background: linear-gradient(105deg, rgba(12,51,39,0.92) 0%, rgba(12,51,39,0.72) 45%, rgba(12,31,24,0.45) 100%),
            url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
        overflow: hidden;
    }

    .hero::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 5px;
        background: var(--secondary-gold);
    }

    .hero .hero-inner {
        position: relative;
        z-index: 2;
        padding: 60px 0 70px;
        width: 100%;
    }

    .hero-tag {
        display: inline-block;
        font-size: 13px;
        font-weight: 500;
        color: var(--secondary-gold);
        letter-spacing: 2px;
        margin-bottom: 18px;
        text-transform: uppercase;
    }

    .hero h1 {
        font-family: var(--font-serif);
        font-size: 44px;
        font-weight: 700;
        color: #fff;
        line-height: 1.25;
        margin: 0 0 16px;
        letter-spacing: 1px;
    }

    .hero-sub {
        font-size: 16px;
        color: rgba(255,255,255,0.82);
        max-width: 620px;
        line-height: 1.8;
        margin: 0 0 24px;
    }

    .hero-cta {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 12px 28px;
        border-radius: var(--radius-btn);
        font-size: 15px;
        font-weight: 600;
        letter-spacing: 0.5px;
        cursor: pointer;
        transition: all var(--transition-base);
        border: none;
        line-height: 1.4;
    }

    .btn-primary {
        background: var(--secondary-gold);
        color: #fff;
    }

    .btn-primary:hover {
        background: #b8934a;
        color: #fff;
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(200,164,93,0.35);
    }

    .btn-outline {
        background: transparent;
        color: #fff;
        border: 1px solid rgba(255,255,255,0.45);
    }

    .btn-outline:hover {
        background: rgba(255,255,255,0.1);
        color: #fff;
        border-color: var(--secondary-gold);
    }

    .btn-dark {
        background: var(--primary-dark);
        color: #fff;
    }

    .btn-dark:hover {
        background: var(--primary-deeper);
        color: #fff;
        transform: translateY(-1px);
    }

    .btn:focus {
        outline: 2px solid var(--secondary-gold);
        outline-offset: 2px;
    }

    /* Breadcrumb */
    .breadcrumb-section {
        background: var(--bg-warm);
        border-bottom: 1px solid var(--border-soft);
        padding: 14px 0;
    }

    .breadcrumb-list {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-secondary);
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .breadcrumb-list li { display: flex; align-items: center; gap: 8px; }

    .breadcrumb-list li:not(:last-child)::after {
        content: '/';
        color: var(--text-secondary);
        opacity: 0.5;
        margin-left: 4px;
    }

    .breadcrumb-list a {
        color: var(--text-secondary);
        transition: color var(--transition-base);
    }

    .breadcrumb-list a:hover { color: var(--primary-dark); }

    .breadcrumb-list .current {
        color: var(--primary-dark);
        font-weight: 600;
        pointer-events: none;
    }

    /* Section base */
    .section {
        padding: 72px 0;
    }

    .section-dark {
        background: var(--bg-dark);
        color: var(--text-light);
    }

    .section-warm {
        background: var(--bg-warm-alt);
    }

    .section-white {
        background: #fff;
    }

    .section-title {
        font-family: var(--font-serif);
        font-size: 32px;
        font-weight: 700;
        color: var(--text-main);
        line-height: 1.3;
        margin-bottom: 12px;
    }

    .section-dark .section-title { color: #fff; }

    .section-lead {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 680px;
        line-height: 1.8;
        margin-bottom: 40px;
    }

    .section-dark .section-lead { color: rgba(255,255,255,0.7); }

    .section-head {
        margin-bottom: 40px;
    }

    .section-head .gold-line {
        width: 48px;
        height: 3px;
        background: var(--secondary-gold);
        margin-bottom: 16px;
    }

    /* Pain point cards */
    .pain-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
        gap: 20px;
    }

    .pain-card {
        background: rgba(255,255,255,0.04);
        border: 1px solid rgba(255,255,255,0.08);
        border-left: 3px solid var(--secondary-gold);
        border-radius: 8px;
        padding: 24px;
        transition: all var(--transition-base);
    }

    .pain-card:hover {
        background: rgba(255,255,255,0.08);
        border-left-color: var(--secondary-gold);
        transform: translateY(-2px);
    }

    .pain-card h3 {
        font-size: 18px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 8px;
        letter-spacing: 0.5px;
    }

    .pain-card p {
        font-size: 14px;
        color: rgba(255,255,255,0.65);
        line-height: 1.7;
        margin: 0;
    }

    /* Solution blocks */
    .solution-block {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
        margin-bottom: 56px;
    }

    .solution-block:last-child { margin-bottom: 0; }

    .solution-block.reverse .solution-text { order: 2; }
    .solution-block.reverse .solution-image { order: 1; }

    .solution-text h3 {
        font-family: var(--font-serif);
        font-size: 24px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 14px;
        line-height: 1.35;
    }

    .solution-text p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.8;
        margin-bottom: 16px;
    }

    .solution-text .solution-list {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .solution-text .solution-list li {
        font-size: 13px;
        color: var(--primary-dark);
        background: rgba(15,61,46,0.08);
        border: 1px solid rgba(15,61,46,0.12);
        padding: 6px 14px;
        border-radius: 20px;
        transition: all var(--transition-base);
    }

    .solution-text .solution-list li:hover {
        background: var(--primary-dark);
        color: #fff;
    }

    .solution-image {
        border-radius: var(--radius-img);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        aspect-ratio: 16/10;
    }

    .solution-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }

    .solution-image:hover img { transform: scale(1.03); }

    /* Industry cards */
    .industry-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .industry-card {
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
        display: flex;
        flex-direction: column;
    }

    .industry-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-4px);
        border-color: var(--border-gold);
    }

    .industry-card.featured {
        grid-column: span 2;
        flex-direction: row;
    }

    .industry-card .card-image {
        aspect-ratio: 16/9;
        overflow: hidden;
        position: relative;
        flex-shrink: 0;
    }

    .industry-card.featured .card-image {
        aspect-ratio: auto;
        width: 48%;
        min-height: 240px;
    }

    .industry-card .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }

    .industry-card:hover .card-image img { transform: scale(1.05); }

    .industry-card .card-body {
        padding: 22px;
        flex: 1;
    }

    .industry-card .card-tag {
        display: inline-block;
        font-size: 12px;
        font-weight: 600;
        color: var(--secondary-gold);
        background: rgba(200,164,93,0.12);
        border: 1px solid var(--border-gold);
        padding: 3px 12px;
        border-radius: 16px;
        margin-bottom: 12px;
        letter-spacing: 0.5px;
    }

    .industry-card h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 8px;
        line-height: 1.4;
    }

    .industry-card p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin: 0;
    }

    .industry-card .card-meta {
        display: flex;
        gap: 16px;
        font-size: 12px;
        color: var(--text-secondary);
        margin-top: 14px;
        opacity: 0.7;
    }

    /* Pagination */
    .pagination-wrap {
        display: flex;
        justify-content: center;
        margin-top: 40px;
    }

    .custom-pagination {
        display: flex;
        align-items: center;
        gap: 6px;
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .custom-pagination li a,
    .custom-pagination li span {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 38px;
        height: 38px;
        padding: 0 8px;
        border-radius: 6px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-secondary);
        border: 1px solid var(--border-soft);
        transition: all var(--transition-base);
    }

    .custom-pagination li span.current {
        background: var(--secondary-gold);
        color: #fff;
        border-color: var(--secondary-gold);
    }

    .custom-pagination li a:hover {
        background: rgba(200,164,93,0.12);
        color: var(--primary-dark);
        border-color: var(--border-gold);
    }

    /* Process steps */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .step-item {
        background: #fff;
        border-radius: 8px;
        padding: 24px;
        text-align: center;
        border: 1px solid var(--border-soft);
        transition: all var(--transition-base);
    }

    .step-item:hover {
        box-shadow: var(--shadow-card);
        border-color: var(--border-gold);
    }

    .step-number {
        font-family: var(--font-num);
        font-size: 40px;
        font-weight: 700;
        color: var(--secondary-gold);
        margin-bottom: 8px;
        line-height: 1;
    }

    .step-item h4 {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 8px;
    }

    .step-item p {
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.6;
        margin: 0;
    }

    /* Stats */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }

    .stat-item {
        text-align: center;
        padding: 20px;
    }

    .stat-item .stat-number {
        font-family: var(--font-num);
        font-size: 52px;
        font-weight: 700;
        color: var(--secondary-gold);
        line-height: 1.1;
        margin-bottom: 6px;
    }

    .stat-item .stat-label {
        font-size: 14px;
        color: rgba(255,255,255,0.7);
        letter-spacing: 0.5px;
    }

    /* Testimonials */
    .testimonial-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .testimonial-card {
        background: #fff;
        border-radius: var(--radius-card);
        padding: 28px;
        border: 1px solid var(--border-soft);
        box-shadow: var(--shadow-card);
        transition: all var(--transition-base);
        position: relative;
    }

    .testimonial-card:hover {
        box-shadow: var(--shadow-card-hover);
        transform: translateY(-3px);
    }

    .testimonial-card .quote-mark {
        font-family: var(--font-serif);
        font-size: 48px;
        color: var(--secondary-gold);
        opacity: 0.5;
        line-height: 1;
        margin-bottom: 12px;
        display: block;
    }

    .testimonial-card blockquote {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.7;
        margin: 0 0 16px;
        font-style: normal;
    }

    .testimonial-card .author {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 2px;
    }

    .testimonial-card .role {
        font-size: 12px;
        color: var(--text-secondary);
        opacity: 0.7;
    }

    /* Capability tags */
    .capability-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .capability-item {
        background: #fff;
        border-radius: 8px;
        padding: 22px;
        border: 1px solid var(--border-soft);
        display: flex;
        gap: 14px;
        align-items: flex-start;
        transition: all var(--transition-base);
    }

    .capability-item:hover {
        border-color: var(--border-gold);
        box-shadow: var(--shadow-card);
    }

    .capability-item .cap-icon {
        width: 40px;
        height: 40px;
        border-radius: 8px;
        background: rgba(200,164,93,0.12);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--secondary-gold);
        font-size: 18px;
        flex-shrink: 0;
    }

    .capability-item h4 {
        font-size: 15px;
        font-weight: 600;
        color: var(--text-main);
        margin-bottom: 6px;
    }

    .capability-item p {
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.6;
        margin: 0;
    }

    /* Brand intro */
    .brand-intro {
        background: linear-gradient(135deg, #fff 0%, var(--bg-warm-alt) 100%);
        border: 1px solid var(--border-soft);
        border-radius: var(--radius-card);
        padding: 40px;
        box-shadow: var(--shadow-card);
    }

    .brand-intro h3 {
        font-family: var(--font-serif);
        font-size: 24px;
        font-weight: 700;
        color: var(--primary-dark);
        margin-bottom: 16px;
    }

    .brand-intro p {
        font-size: 15px;
        color: var(--text-secondary);
        line-height: 1.9;
        margin-bottom: 14px;
    }

    .brand-intro p:last-child { margin-bottom: 0; }

    /* FAQ */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }

    .faq-item {
        background: #fff;
        border: 1px solid var(--border-soft);
        border-radius: 8px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: all var(--transition-base);
    }

    .faq-item.active {
        border-color: var(--border-gold);
        background: var(--bg-warm);
    }

    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 22px;
        cursor: pointer;
        user-select: none;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-main);
        transition: color var(--transition-base);
    }

    .faq-question:hover { color: var(--primary-dark); }

    .faq-question .faq-icon {
        font-size: 14px;
        color: var(--secondary-gold);
        transition: transform 0.3s ease;
        flex-shrink: 0;
        margin-left: 12px;
    }

    .faq-item.active .faq-icon { transform: rotate(180deg); }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }

    .faq-item.active .faq-answer { max-height: 400px; }

    .faq-answer-inner {
        padding: 0 22px 20px;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
    }

    /* CTA */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-deeper) 100%);
        position: relative;
        overflow: hidden;
    }

    .cta-section::before {
        content: '';
        position: absolute;
        right: -80px;
        top: -80px;
        width: 300px;
        height: 300px;
        border-radius: 50%;
        background: rgba(200,164,93,0.08);
    }

    .cta-section::after {
        content: '';
        position: absolute;
        left: -60px;
        bottom: -60px;
        width: 220px;
        height: 220px;
        border-radius: 50%;
        background: rgba(200,164,93,0.06);
    }

    .cta-inner {
        position: relative;
        z-index: 2;
        max-width: 680px;
    }

    .cta-inner h2 {
        font-family: var(--font-serif);
        font-size: 32px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 16px;
        line-height: 1.35;
    }

    .cta-inner p {
        font-size: 15px;
        color: rgba(255,255,255,0.75);
        line-height: 1.8;
        margin-bottom: 28px;
    }

    .cta-actions {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* Footer */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.7);
        padding: 60px 0 30px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        margin-bottom: 40px;
    }

    .footer-brand .footer-logo {
        font-family: var(--font-serif);
        font-size: 22px;
        font-weight: 700;
        color: #fff;
        letter-spacing: 1.5px;
        margin-bottom: 14px;
    }

    .footer-brand p {
        font-size: 13px;
        line-height: 1.7;
        opacity: 0.7;
        margin: 0;
    }

    .footer-col h4 {
        font-size: 14px;
        font-weight: 600;
        color: #fff;
        margin-bottom: 16px;
        letter-spacing: 0.5px;
    }

    .footer-col ul { list-style: none; padding: 0; margin: 0; }

    .footer-col ul li { margin-bottom: 8px; }

    .footer-col ul li a {
        font-size: 13px;
        color: rgba(255,255,255,0.6);
        transition: color var(--transition-base);
    }

    .footer-col ul li a:hover { color: var(--secondary-gold); }

    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.08);
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        font-size: 12px;
        opacity: 0.55;
        justify-content: space-between;
    }

    .footer-bottom a {
        color: rgba(255,255,255,0.6);
        transition: color var(--transition-base);
    }

    .footer-bottom a:hover { color: var(--secondary-gold); }

    /* Responsive */
    @media (max-width: 1024px) {
        .hero h1 { font-size: 36px; }
        .industry-grid { grid-template-columns: repeat(2, 1fr); }
        .industry-card.featured { grid-column: span 2; }
        .solution-block { grid-template-columns: 1fr; gap: 24px; }
        .solution-block.reverse .solution-text { order: 1; }
        .solution-block.reverse .solution-image { order: 2; }
        .steps-grid { grid-template-columns: repeat(2, 1fr); }
        .stats-grid { grid-template-columns: repeat(2, 1fr); }
        .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
        .capability-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: repeat(2, 1fr); }
    }

    @media (max-width: 768px) {
        .section { padding: 48px 0; }
        .hero { min-height: 45vh; }
        .hero h1 { font-size: 30px; }
        .hero-sub { font-size: 14px; }
        .section-title { font-size: 26px; }
        .industry-grid { grid-template-columns: 1fr; }
        .industry-card.featured { grid-column: span 1; flex-direction: column; }
        .industry-card.featured .card-image { width: 100%; aspect-ratio: 16/9; }
        .pain-grid { grid-template-columns: 1fr; }
        .steps-grid { grid-template-columns: 1fr; }
        .stats-grid { grid-template-columns: 1fr; }
        .testimonial-grid { grid-template-columns: 1fr; }
        .capability-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr; }
        .breadcrumb-list { flex-wrap: wrap; }
        .stat-item .stat-number { font-size: 40px; }
        .brand-intro { padding: 24px; }
    }

    @media (max-width: 520px) {
        .hero h1 { font-size: 26px; }
        .section-title { font-size: 22px; }
        .container-custom { padding: 0 14px; }
        .btn { padding: 10px 20px; font-size: 14px; }
        .cta-inner h2 { font-size: 24px; }
        .step-number { font-size: 32px; }
        .footer-bottom { flex-direction: column; gap: 8px; }
    }