/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #2D4A3E;
            --primary-light: #3b5f50;
            --primary-dark: #1f352b;
            --secondary: #C9A96E;
            --secondary-light: #dabe86;
            --accent: #E07A5F;
            --bg: #FDFDF5;
            --bg-card: #FFFFFF;
            --bg-light: #F4F4F0;
            --bg-dark: #1F2D3D;
            --text: #1A1A1A;
            --text-light: #6B6B6B;
            --text-white: #FFFFFF;
            --border: #E0E0E0;
            --radius: 8px;
            --radius-sm: 4px;
            --radius-lg: 12px;
            --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
            --shadow: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
            --shadow-xl: 0 8px 32px rgba(0,0,0,0.16);
            --transition: 0.25s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --nav-width: 220px;
            --header-h: 60px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font);
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 400; line-height: 1.3; }

        /* ===== Layout ===== */
        .app-shell { display: flex; min-height: 100vh; }
        .side-nav {
            position: fixed; top: 0; left: 0; width: var(--nav-width); height: 100vh;
            background: var(--bg-dark); color: var(--text-white); z-index: 1000;
            display: flex; flex-direction: column; transition: transform var(--transition);
        }
        .side-nav .logo-area {
            height: var(--header-h); display: flex; align-items: center; padding: 0 20px;
            border-bottom: 1px solid rgba(255,255,255,0.08); flex-shrink: 0;
        }
        .side-nav .logo-area .logo-icon {
            width: 32px; height: 32px; background: var(--secondary); border-radius: 50%;
            display: flex; align-items: center; justify-content: center;
            font-size: 1.1rem; font-weight: 700; color: var(--bg-dark); margin-right: 10px;
        }
        .side-nav .logo-area .logo-text {
            font-size: 1.15rem; font-weight: 500; letter-spacing: 1px; color: var(--text-white);
        }
        .side-nav .nav-menu { flex: 1; padding: 16px 0; overflow-y: auto; }
        .side-nav .nav-menu .nav-item {
            display: flex; align-items: center; padding: 11px 24px; margin: 2px 8px;
            border-radius: 6px; color: rgba(255,255,255,0.72); font-size: 0.95rem;
            transition: all var(--transition); cursor: pointer;
        }
        .side-nav .nav-menu .nav-item i { width: 22px; margin-right: 12px; font-size: 1rem; text-align: center; }
        .side-nav .nav-menu .nav-item:hover { background: rgba(255,255,255,0.1); color: #fff; }
        .side-nav .nav-menu .nav-item.active { background: rgba(255,255,255,0.15); color: #fff; border-left: 3px solid var(--secondary); }
        .side-nav .nav-footer {
            padding: 16px 24px; border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.75rem; color: rgba(255,255,255,0.4);
        }
        .main-area { margin-left: var(--nav-width); flex: 1; min-height: 100vh; display: flex; flex-direction: column; }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none; position: fixed; top: 0; left: 0; right: 0; height: var(--header-h);
            background: var(--bg-dark); z-index: 1100; align-items: center; padding: 0 16px;
            box-shadow: var(--shadow);
        }
        .mobile-header .logo-text { color: var(--text-white); font-size: 1.1rem; font-weight: 500; letter-spacing: 1px; }
        .mobile-header .hamburger {
            background: none; border: none; color: var(--text-white); font-size: 1.5rem;
            cursor: pointer; padding: 8px; border-radius: 4px;
        }
        .mobile-header .hamburger:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }
        .nav-overlay {
            display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.5); z-index: 1050;
        }
        .nav-overlay.open { display: block; }

        /* ===== Container ===== */
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .container-fluid { padding: 0 20px; }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 70vh; display: flex; align-items: center;
            background: linear-gradient(135deg, rgba(31,45,61,0.85) 0%, rgba(45,74,62,0.75) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 80px 40px; overflow: hidden;
        }
        .hero::after {
            content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
            background: linear-gradient(to top, var(--bg), transparent);
        }
        .hero .hero-content { position: relative; z-index: 2; max-width: 680px; }
        .hero .hero-content h1 {
            font-size: 2.6rem; font-weight: 500; color: var(--text-white); margin-bottom: 20px;
            letter-spacing: 0.5px; line-height: 1.25;
        }
        .hero .hero-content p {
            font-size: 1.15rem; color: rgba(255,255,255,0.85); margin-bottom: 32px;
            max-width: 560px; line-height: 1.7;
        }
        .hero .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .hero .hero-actions .btn-primary {
            background: var(--secondary); color: var(--text); border: none; padding: 14px 40px;
            border-radius: 6px; font-size: 1.1rem; font-weight: 600; cursor: pointer;
            transition: all var(--transition); letter-spacing: 0.3px;
        }
        .hero .hero-actions .btn-primary:hover { background: var(--secondary-light); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .hero .hero-actions .btn-secondary {
            background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.5);
            padding: 12px 36px; border-radius: 6px; font-size: 1.05rem; font-weight: 500; cursor: pointer;
            transition: all var(--transition);
        }
        .hero .hero-actions .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: var(--text-white); }

        /* ===== Section ===== */
        .section { padding: 70px 0; }
        .section-alt { background: var(--bg-light); }
        .section-dark { background: var(--primary); color: var(--text-white); }
        .section-title { font-size: 2rem; font-weight: 500; margin-bottom: 12px; letter-spacing: 0.3px; }
        .section-subtitle { font-size: 1.05rem; color: var(--text-light); margin-bottom: 44px; max-width: 640px; }
        .section-alt .section-subtitle { color: var(--text-light); }
        .section-title.centered, .section-subtitle.centered { text-align: center; margin-left: auto; margin-right: auto; }

        /* ===== Cards ===== */
        .card {
            background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow);
            padding: 24px; transition: all var(--transition); border: 1px solid rgba(0,0,0,0.03);
        }
        .card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
        .card .card-icon {
            width: 52px; height: 52px; border-radius: 50%; background: var(--primary);
            color: var(--text-white); display: flex; align-items: center; justify-content: center;
            font-size: 1.3rem; font-weight: 600; margin-bottom: 16px;
        }
        .card .card-icon.alt { background: var(--secondary); color: var(--text); }
        .card h3 { font-size: 1.35rem; font-weight: 500; margin-bottom: 10px; }
        .card p { color: var(--text-light); font-size: 0.95rem; line-height: 1.6; }
        .card .card-link { margin-top: 14px; display: inline-flex; align-items: center; gap: 6px; font-weight: 500; color: var(--primary); }
        .card .card-link i { font-size: 0.8rem; transition: transform var(--transition); }
        .card .card-link:hover i { transform: translateX(4px); }

        /* ===== Step Section ===== */
        .step-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
        .step-card { text-align: center; background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 32px 24px; transition: all var(--transition); border: 1px solid rgba(0,0,0,0.03); }
        .step-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
        .step-card .step-num {
            width: 56px; height: 56px; border-radius: 50%; background: var(--primary);
            color: var(--text-white); display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem; font-weight: 700; margin: 0 auto 16px;
        }
        .step-card h3 { font-size: 1.25rem; font-weight: 500; margin-bottom: 8px; }
        .step-card p { color: var(--text-light); font-size: 0.92rem; line-height: 1.6; }

        /* ===== Case Section ===== */
        .case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
        .case-card { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: all var(--transition); border: 1px solid rgba(0,0,0,0.03); }
        .case-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
        .case-card .case-img { height: 200px; background: var(--bg-light); overflow: hidden; }
        .case-card .case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .case-card:hover .case-img img { transform: scale(1.05); }
        .case-card .case-body { padding: 20px 24px 24px; }
        .case-card .case-body h3 { font-size: 1.15rem; font-weight: 500; margin-bottom: 6px; }
        .case-card .case-body .case-role { font-size: 0.85rem; color: var(--secondary); font-weight: 500; margin-bottom: 8px; }
        .case-card .case-body p { color: var(--text-light); font-size: 0.92rem; line-height: 1.65; }
        .case-card .case-body .case-link { margin-top: 12px; display: inline-flex; align-items: center; gap: 6px; font-weight: 500; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 800px; margin: 0 auto; }
        .faq-item { border-bottom: 1px solid var(--border); padding: 0; }
        .faq-item:first-child { border-top: 1px solid var(--border); }
        .faq-trigger {
            display: flex; align-items: center; justify-content: space-between; width: 100%;
            padding: 18px 20px; background: none; border: none; cursor: pointer;
            font-size: 1.05rem; font-weight: 500; text-align: left; color: var(--text);
            transition: background var(--transition); gap: 12px;
        }
        .faq-trigger:hover { background: rgba(0,0,0,0.02); }
        .faq-trigger i { transition: transform var(--transition); font-size: 0.85rem; color: var(--text-light); flex-shrink: 0; }
        .faq-trigger[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-panel {
            padding: 0 20px 20px; color: var(--text-light); font-size: 0.95rem; line-height: 1.7;
            display: none;
        }
        .faq-panel.open { display: block; }

        /* ===== CTA ===== */
        .cta-section { background: var(--primary); padding: 70px 0; text-align: center; }
        .cta-section h2 { font-size: 2rem; font-weight: 500; color: var(--text-white); margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.8); font-size: 1.05rem; margin-bottom: 32px; max-width: 540px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-cta {
            background: var(--text-white); color: var(--primary); border: none;
            padding: 16px 52px; border-radius: 6px; font-size: 1.15rem; font-weight: 600;
            cursor: pointer; transition: all var(--transition); letter-spacing: 0.5px;
        }
        .cta-section .btn-cta:hover { background: var(--bg-light); transform: translateY(-2px); box-shadow: var(--shadow-xl); }
        .cta-section .cta-note { margin-top: 16px; font-size: 0.85rem; color: rgba(255,255,255,0.55); }

        /* ===== News / CMS List ===== */
        .news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
        .news-card { background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px 24px; transition: all var(--transition); border: 1px solid rgba(0,0,0,0.03); display: flex; flex-direction: column; }
        .news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
        .news-card .news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; font-size: 0.82rem; color: var(--text-light); }
        .news-card .news-meta .tag {
            display: inline-block; background: var(--secondary); color: var(--text); padding: 2px 10px;
            border-radius: 20px; font-size: 0.75rem; font-weight: 500;
        }
        .news-card .news-meta .tag.alt { background: var(--accent); color: var(--text-white); }
        .news-card h3 { font-size: 1.1rem; font-weight: 500; margin-bottom: 8px; }
        .news-card h3 a { color: var(--text); transition: color var(--transition); }
        .news-card h3 a:hover { color: var(--primary); }
        .news-card p { color: var(--text-light); font-size: 0.9rem; line-height: 1.6; flex: 1; }
        .news-card .news-footer { margin-top: 14px; display: flex; justify-content: flex-end; }
        .news-card .news-footer a { font-size: 0.88rem; font-weight: 500; display: inline-flex; align-items: center; gap: 4px; }
        .news-empty { grid-column: 1 / -1; text-align: center; padding: 40px; color: var(--text-light); font-size: 0.95rem; background: var(--bg-card); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
        .news-more-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 32px; font-weight: 500; font-size: 1rem; }

        /* ===== Footer ===== */
        .site-footer { background: var(--bg-dark); color: var(--text-white); padding: 50px 0 30px; }
        .site-footer .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
        .site-footer .footer-brand .footer-logo { font-size: 1.2rem; font-weight: 500; letter-spacing: 1px; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
        .site-footer .footer-brand .footer-logo .logo-icon { width: 30px; height: 30px; background: var(--secondary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; font-weight: 700; color: var(--bg-dark); }
        .site-footer .footer-brand p { color: rgba(255,255,255,0.55); font-size: 0.88rem; line-height: 1.65; max-width: 320px; }
        .site-footer h4 { font-size: 1rem; font-weight: 500; margin-bottom: 16px; color: var(--text-white); }
        .site-footer ul li { margin-bottom: 8px; }
        .site-footer ul li a { color: rgba(255,255,255,0.55); font-size: 0.88rem; transition: color var(--transition); }
        .site-footer ul li a:hover { color: var(--secondary); }
        .site-footer .footer-bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.35); }

        /* ===== Buttons ===== */
        .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: none; border-radius: 6px; padding: 12px 32px; font-size: 1rem; font-weight: 600; cursor: pointer; transition: all var(--transition); text-decoration: none; }
        .btn-primary { background: var(--primary); color: var(--text-white); }
        .btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .btn-secondary { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
        .btn-secondary:hover { background: var(--primary); color: var(--text-white); }
        .btn-ghost { background: transparent; color: var(--text-white); border: 2px solid rgba(255,255,255,0.4); }
        .btn-ghost:hover { background: rgba(255,255,255,0.1); border-color: var(--text-white); }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .text-secondary { color: var(--secondary); }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .gap-16 { gap: 16px; }
        .gap-24 { gap: 24px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .side-nav { transform: translateX(-100%); }
            .side-nav.open { transform: translateX(0); }
            .main-area { margin-left: 0; }
            .mobile-header { display: flex; }
            .main-area { padding-top: var(--header-h); }
            .step-grid { grid-template-columns: repeat(2, 1fr); }
            .case-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr 1fr; }
            .hero { min-height: 60vh; padding: 60px 24px; }
            .hero .hero-content h1 { font-size: 2rem; }
            .hero .hero-content p { font-size: 1rem; }
            .section { padding: 50px 0; }
            .section-title { font-size: 1.7rem; }
        }

        @media (max-width: 639px) {
            .step-grid { grid-template-columns: 1fr; }
            .site-footer .footer-grid { grid-template-columns: 1fr; }
            .hero { min-height: 50vh; padding: 40px 16px; }
            .hero .hero-content h1 { font-size: 1.6rem; }
            .hero .hero-content p { font-size: 0.92rem; }
            .hero .hero-actions { flex-direction: column; }
            .hero .hero-actions .btn-primary,
            .hero .hero-actions .btn-secondary { width: 100%; text-align: center; }
            .section { padding: 36px 0; }
            .section-title { font-size: 1.4rem; }
            .container { padding: 0 12px; }
            .card { padding: 18px; }
            .step-card { padding: 24px 18px; }
            .faq-trigger { padding: 14px 14px; font-size: 0.95rem; }
            .faq-panel { padding: 0 14px 16px; }
            .cta-section { padding: 50px 0; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-cta { padding: 14px 36px; font-size: 1rem; }
            .news-card { padding: 16px 18px; }
            .side-nav .nav-menu .nav-item { padding: 10px 16px; margin: 2px 4px; font-size: 0.9rem; }
            .mobile-header .logo-text { font-size: 1rem; }
        }

        @media (min-width: 1024px) {
            .side-nav { transform: translateX(0); }
            .mobile-header { display: none; }
            .main-area { padding-top: 0; }
            .nav-overlay { display: none !important; }
        }

        /* ===== Foundation Overrides ===== */
        .grid-container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
        .grid-x { margin-left: -15px; margin-right: -15px; }
        .cell { padding-left: 15px; padding-right: 15px; }
        .accordion { background: transparent; border: none; }
        .accordion .accordion-item { border-bottom: 1px solid var(--border); background: transparent; }
        .accordion .accordion-item:first-child { border-top: 1px solid var(--border); }
        .accordion .accordion-title {
            font-family: var(--font); font-size: 1.05rem; font-weight: 500; color: var(--text);
            padding: 18px 20px; background: transparent; border: none;
            display: flex; align-items: center; justify-content: space-between;
        }
        .accordion .accordion-title::before { content: '\f107'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.9rem; color: var(--text-light); order: 1; margin-left: auto; transition: transform var(--transition); }
        .accordion .accordion-title[aria-expanded="true"]::before { transform: rotate(180deg); }
        .accordion .accordion-title:hover { background: rgba(0,0,0,0.02); }
        .accordion .accordion-content { padding: 0 20px 20px; color: var(--text-light); font-size: 0.95rem; line-height: 1.7; background: transparent; border: none; }

        /* ===== Breadcrumb ===== */
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-light); padding: 16px 0; flex-wrap: wrap; }
        .breadcrumb a { color: var(--text-light); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--border); }

        /* ===== Print ===== */
        @media print {
            .side-nav, .mobile-header, .nav-overlay { display: none; }
            .main-area { margin-left: 0; padding-top: 0; }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #2D4A3E;
            --primary-light: #3A5F50;
            --primary-dark: #1F362C;
            --secondary: #C9A96E;
            --secondary-light: #D8BE8A;
            --accent: #E07A5F;
            --bg: #FDFDF5;
            --bg-card: #FFFFFF;
            --bg-section: #F4F4F0;
            --text: #1A1A1A;
            --text-weak: #6B6B6B;
            --text-light: rgba(255,255,255,0.92);
            --border: #E2E2DD;
            --radius: 8px;
            --radius-sm: 6px;
            --shadow: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
            --transition: 0.25s ease;
            --nav-width: 220px;
            --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 2px; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius); }
        ul,ol { list-style: none; }
        h1,h2,h3,h4,h5,h6 { font-weight: 400; line-height: 1.3; color: var(--text); }
        h1 { font-size: 2.5rem; }
        h2 { font-size: 2rem; }
        h3 { font-size: 1.5rem; }
        p { margin-bottom: 1em; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .row { max-width: 100%; }

        /* ===== Layout: Side Nav + Main ===== */
        .app-wrapper { display: flex; min-height: 100vh; }

        /* ===== Side Navigation (Desktop) ===== */
        .side-nav {
            position: fixed; top: 0; left: 0; width: var(--nav-width); height: 100vh;
            background: #1F2D3D; color: #fff; z-index: 1000;
            display: flex; flex-direction: column; overflow-y: auto;
            transition: transform var(--transition);
        }
        .side-nav .logo-area {
            display: flex; align-items: center; gap: 10px;
            padding: 18px 20px; border-bottom: 1px solid rgba(255,255,255,0.08);
            min-height: 64px;
        }
        .side-nav .logo-icon {
            width: 36px; height: 36px; border-radius: 50%;
            background: var(--secondary); color: #1F2D3D;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 1.1rem; flex-shrink: 0;
        }
        .side-nav .logo-text { font-size: 1.15rem; font-weight: 500; letter-spacing: 0.5px; color: #fff; }
        .side-nav .nav-menu { flex: 1; padding: 16px 0; }
        .side-nav .nav-item {
            display: flex; align-items: center; gap: 12px;
            padding: 12px 24px; color: rgba(255,255,255,0.75);
            font-size: 0.95rem; transition: all var(--transition);
            border-left: 3px solid transparent;
        }
        .side-nav .nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
        .side-nav .nav-item.active { background: rgba(255,255,255,0.12); color: #fff; border-left-color: var(--secondary); }
        .side-nav .nav-item i { width: 20px; text-align: center; font-size: 1rem; }
        .side-nav .nav-footer {
            padding: 16px 24px; border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.78rem; color: rgba(255,255,255,0.4);
        }

        /* ===== Main Content Area ===== */
        .main-content {
            flex: 1; margin-left: var(--nav-width); min-height: 100vh;
            display: flex; flex-direction: column; background: var(--bg);
        }

        /* ===== Mobile Top Bar ===== */
        .mobile-topbar {
            display: none; position: fixed; top: 0; left: 0; right: 0; z-index: 1100;
            height: 60px; background: #1F2D3D; padding: 0 16px;
            align-items: center; justify-content: space-between;
        }
        .mobile-topbar .logo-area { display: flex; align-items: center; gap: 10px; }
        .mobile-topbar .logo-icon {
            width: 32px; height: 32px; border-radius: 50%;
            background: var(--secondary); color: #1F2D3D;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 1rem; flex-shrink: 0;
        }
        .mobile-topbar .logo-text { font-size: 1.05rem; font-weight: 500; color: #fff; }
        .mobile-topbar .hamburger {
            background: none; border: none; color: #fff; font-size: 1.5rem;
            cursor: pointer; padding: 8px; border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-topbar .hamburger:hover { background: rgba(255,255,255,0.1); }
        .mobile-topbar .hamburger:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; }

        /* ===== Mobile Drawer Overlay ===== */
        .drawer-overlay {
            display: none; position: fixed; inset: 0; z-index: 1050;
            background: rgba(0,0,0,0.5); opacity: 0; transition: opacity var(--transition);
        }
        .drawer-overlay.open { opacity: 1; }

        /* ===== Article Specific Styles ===== */
        .article-page { flex: 1; padding: 40px 0 60px; }
        .article-breadcrumb {
            padding: 16px 0 8px; font-size: 0.88rem; color: var(--text-weak);
        }
        .article-breadcrumb a { color: var(--text-weak); }
        .article-breadcrumb a:hover { color: var(--primary); }
        .article-breadcrumb .sep { margin: 0 8px; color: var(--border); }
        .article-header { margin-bottom: 32px; }
        .article-header h1 { font-size: 2.2rem; font-weight: 500; line-height: 1.35; margin-bottom: 16px; color: var(--text); }
        .article-meta {
            display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
            font-size: 0.9rem; color: var(--text-weak);
        }
        .article-meta .badge {
            display: inline-block; background: var(--secondary); color: #1F2D3D;
            padding: 2px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 500;
        }
        .article-body {
            max-width: 820px; font-size: 1.05rem; line-height: 1.85;
            color: #2A2A2A;
        }
        .article-body h2 { font-size: 1.65rem; margin-top: 1.8em; margin-bottom: 0.6em; font-weight: 500; }
        .article-body h3 { font-size: 1.3rem; margin-top: 1.4em; margin-bottom: 0.5em; font-weight: 500; }
        .article-body p { margin-bottom: 1.2em; }
        .article-body ul, .article-body ol { margin: 0 0 1.2em 1.6em; }
        .article-body li { margin-bottom: 0.4em; list-style: disc; }
        .article-body ol li { list-style: decimal; }
        .article-body blockquote {
            border-left: 4px solid var(--secondary); background: var(--bg-section);
            padding: 16px 24px; margin: 1.2em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: #3A3A3A; font-style: normal;
        }
        .article-body img { border-radius: var(--radius); margin: 1.2em 0; }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
        .article-body a:hover { color: var(--primary-light); }

        /* ===== Related Posts ===== */
        .related-section { margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border); }
        .related-section h2 { font-size: 1.5rem; font-weight: 500; margin-bottom: 24px; }
        .related-grid {
            display: grid; grid-template-columns: repeat(2,1fr); gap: 24px;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            box-shadow: var(--shadow); padding: 20px 24px;
            transition: all var(--transition); border: 1px solid var(--border);
        }
        .related-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .related-card h3 { font-size: 1.1rem; font-weight: 500; margin-bottom: 8px; }
        .related-card h3 a { color: var(--text); }
        .related-card h3 a:hover { color: var(--primary); }
        .related-card p { font-size: 0.9rem; color: var(--text-weak); margin-bottom: 0; }

        /* ===== Not Found State ===== */
        .not-found-box {
            text-align: center; padding: 80px 20px; background: var(--bg-card);
            border-radius: var(--radius); box-shadow: var(--shadow);
        }
        .not-found-box i { font-size: 3rem; color: var(--text-weak); margin-bottom: 16px; }
        .not-found-box h2 { font-size: 1.5rem; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-weak); }
        .not-found-box .btn-home {
            display: inline-block; margin-top: 20px; padding: 10px 32px;
            background: var(--primary); color: #fff; border-radius: var(--radius-sm);
            font-weight: 500; transition: background var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-light); color: #fff; }

        /* ===== Footer ===== */
        .site-footer {
            background: #1A1A1A; color: rgba(255,255,255,0.85); padding: 48px 0 24px;
            margin-left: var(--nav-width);
        }
        .footer-grid {
            display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px;
        }
        .footer-logo { display: flex; align-items: center; gap: 10px; font-size: 1.1rem; font-weight: 500; color: #fff; margin-bottom: 12px; }
        .footer-logo .logo-icon {
            width: 32px; height: 32px; border-radius: 50%;
            background: var(--secondary); color: #1A1A1A;
            display: flex; align-items: center; justify-content: center;
            font-weight: 700; font-size: 0.95rem;
        }
        .site-footer p { font-size: 0.9rem; color: rgba(255,255,255,0.55); line-height: 1.7; }
        .site-footer h4 { font-size: 1rem; font-weight: 500; color: #fff; margin-bottom: 16px; }
        .site-footer ul li { margin-bottom: 8px; }
        .site-footer ul li a { color: rgba(255,255,255,0.55); font-size: 0.9rem; transition: color var(--transition); }
        .site-footer ul li a:hover { color: var(--secondary); }
        .footer-bottom {
            margin-top: 32px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }

        /* ===== Shared Blocks Placeholder ===== */
        .shared-blocks-placeholder { display: none; }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1023px) {
            .side-nav { transform: translateX(-100%); }
            .side-nav.open { transform: translateX(0); }
            .main-content { margin-left: 0; padding-top: 60px; }
            .mobile-topbar { display: flex; }
            .drawer-overlay.open { display: block; }
            .site-footer { margin-left: 0; }
            .article-header h1 { font-size: 1.7rem; }
            .article-body { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }

        @media screen and (max-width: 639px) {
            .article-page { padding: 24px 0 40px; }
            .article-header h1 { font-size: 1.4rem; }
            .article-meta { font-size: 0.82rem; gap: 10px; }
            .article-body { font-size: 0.95rem; }
            .article-body h2 { font-size: 1.3rem; }
            .article-body h3 { font-size: 1.1rem; }
            .related-section h2 { font-size: 1.2rem; }
            .related-card { padding: 16px 18px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .site-footer { padding: 32px 0 20px; }
        }

        @media print {
            .side-nav, .mobile-topbar, .drawer-overlay, .site-footer { display: none; }
            .main-content { margin-left: 0; }
            .article-body { max-width: 100%; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #2D4A3E;
            --primary-light: #3A5F50;
            --primary-dark: #1F352B;
            --accent: #C9A96E;
            --accent-light: #DBC68A;
            --accent-dark: #B8944F;
            --emphasis: #E07A5F;
            --bg: #FDFDF5;
            --bg-card: #FFFFFF;
            --bg-soft: #F4F4F0;
            --text: #1A1A1A;
            --text-secondary: #4A4A4A;
            --text-weak: #6B6B6B;
            --text-light: #8A8A8A;
            --border: #E0E0D8;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
            --radius: 8px;
            --radius-lg: 12px;
            --nav-width: 220px;
            --header-height: 60px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
        }

        ul,
        ol {
            list-style: none;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Layout ===== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ===== Side Nav (Desktop) ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: #1F2D3D;
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: var(--transition);
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 18px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            min-height: var(--header-height);
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent);
            color: #1F2D3D;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 600;
            letter-spacing: 1px;
            color: #fff;
        }

        .nav-menu {
            flex: 1;
            padding: 12px 0;
            overflow-y: auto;
        }

        .nav-menu li {
            padding: 0 8px;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 6px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
        }

        .nav-item i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
        }

        .nav-item:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .nav-item.active {
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent);
            border-left: 3px solid var(--accent);
            padding-left: 13px;
        }

        .nav-footer {
            padding: 16px 20px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: #1F2D3D;
            z-index: 1001;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .mobile-header .logo-area {
            padding: 0;
            border: none;
            min-height: auto;
        }

        .hamburger {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Mobile Drawer ===== */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .drawer-menu {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: #1F2D3D;
            z-index: 1002;
            transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
        }

        .drawer-menu.open {
            left: 0;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .drawer-header .logo-area {
            padding: 0;
            border: none;
            min-height: auto;
        }

        .drawer-close {
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.4rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 4px;
            transition: var(--transition);
        }

        .drawer-close:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.1);
        }

        .drawer-nav {
            flex: 1;
            padding: 12px 8px;
            overflow-y: auto;
        }

        .drawer-nav .nav-item {
            padding: 14px 16px;
        }

        /* ===== Main Content ===== */
        .main-content {
            flex: 1;
            margin-left: var(--nav-width);
            min-height: 100vh;
            background: var(--bg);
        }

        /* ===== Hero Section ===== */
        .category-hero {
            position: relative;
            min-height: 65vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1F2D3D 0%, #2D4A3E 70%, #3A5F50 100%);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(31, 45, 61, 0.85) 0%, rgba(45, 74, 62, 0.6) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 40px;
            max-width: 720px;
        }

        .hero-content .breadcrumb {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-content .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-content .breadcrumb a:hover {
            color: var(--accent);
        }
        .hero-content .breadcrumb span {
            color: rgba(255, 255, 255, 0.9);
        }

        .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero-content h1 .highlight {
            color: var(--accent);
        }

        .hero-content .hero-sub {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.6;
            margin-bottom: 32px;
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1F2D3D;
            padding: 14px 36px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-primary:hover {
            background: var(--accent-light);
            color: #1F2D3D;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 169, 110, 0.35);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            padding: 14px 36px;
            border-radius: 6px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid rgba(255, 255, 255, 0.4);
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 32px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item h3 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 4px;
        }

        .stat-item p {
            font-size: 0.95rem;
            color: var(--text-weak);
            margin: 0;
        }

        /* ===== Section Common ===== */
        .section-pad {
            padding: 70px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            text-align: center;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-weak);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }

        /* ===== Advantages ===== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .advantage-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            text-align: center;
        }

        .advantage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }

        .advantage-card .adv-icon {
            width: 64px;
            height: 64px;
            background: rgba(45, 74, 62, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--primary);
            transition: var(--transition);
        }

        .advantage-card:hover .adv-icon {
            background: var(--primary);
            color: #fff;
        }

        .advantage-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }

        .advantage-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Modules / Services ===== */
        .modules-bg {
            background: var(--bg-soft);
        }

        .modules-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .module-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border-left: 4px solid var(--accent);
            display: flex;
            gap: 20px;
            align-items: flex-start;
        }

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

        .module-card .mod-icon {
            width: 52px;
            height: 52px;
            background: rgba(201, 169, 110, 0.15);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--accent-dark);
            flex-shrink: 0;
        }

        .module-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .module-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== Process / Flow ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 36px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
            opacity: 0.3;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .step-num {
            width: 48px;
            height: 48px;
            background: var(--primary);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(45, 74, 62, 0.25);
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-weak);
            margin: 0;
            line-height: 1.5;
        }

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

        .scenario-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
        }

        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .scenario-card .scenario-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .scenario-card .scenario-body {
            padding: 24px 20px;
        }

        .scenario-card .scenario-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .scenario-card .scenario-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-bg {
            background: var(--bg-soft);
        }

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

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .faq-question {
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 500;
            font-size: 1rem;
            color: var(--text);
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }

        .faq-question:hover {
            background: rgba(45, 74, 62, 0.03);
        }

        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            border-top: 0 solid var(--border);
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 16px 24px 20px;
            border-top-width: 1px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(201, 169, 110, 0.12) 0%, transparent 70%);
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 32px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-section .btn-primary {
            background: #fff;
            color: var(--primary);
            padding: 16px 52px;
            font-size: 1.1rem;
        }

        .cta-section .btn-primary:hover {
            background: var(--accent);
            color: #1F2D3D;
            box-shadow: 0 8px 32px rgba(201, 169, 110, 0.4);
        }

        .cta-note {
            margin-top: 16px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #1A1A1A;
            color: rgba(255, 255, 255, 0.8);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 0.95rem;
        }

        .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            max-width: 360px;
        }

        .site-footer h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.92rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding: 20px 0;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
            margin-top: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .side-nav {
                display: none;
            }

            .mobile-header {
                display: flex;
            }

            .main-content {
                margin-left: 0;
                padding-top: var(--header-height);
            }

            .drawer-overlay.open {
                display: block;
            }

            .hero-content {
                padding: 60px 24px;
            }

            .hero-content h1 {
                font-size: 2.2rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .modules-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .process-steps {
                grid-template-columns: repeat(3, 1fr);
                gap: 20px;
            }

            .process-steps::before {
                display: none;
            }

            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
        }

        @media (max-width: 639px) {
            .hero-content h1 {
                font-size: 1.7rem;
            }

            .hero-content .hero-sub {
                font-size: 1rem;
            }

            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }

            .btn-primary,
            .btn-secondary {
                justify-content: center;
                width: 100%;
            }

            .section-pad {
                padding: 44px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }

            .advantages-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-item h3 {
                font-size: 1.6rem;
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .scenarios-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .module-card {
                flex-direction: column;
                padding: 24px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .cta-section h2 {
                font-size: 1.5rem;
            }

            .cta-section .btn-primary {
                width: 100%;
                justify-content: center;
            }

            .hero-content {
                padding: 40px 16px;
            }

            .category-hero {
                min-height: 50vh;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 16px;
                font-size: 0.9rem;
            }

            .faq-item.open .faq-answer {
                padding: 12px 16px 16px;
            }
        }

        @media (max-width: 480px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .hero-content h1 {
                font-size: 1.4rem;
            }
        }