/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f2b4a;
            --primary-light: #1a3f66;
            --primary-dark: #091d33;
            --accent: #c9a96e;
            --accent-hover: #b8954d;
            --accent-light: #e8d8b4;
            --bg: #faf9f7;
            --bg-alt: #f0ede8;
            --bg-card: #ffffff;
            --text: #1e2d3d;
            --text-light: #5a6b7c;
            --text-muted: #8a9aa8;
            --border: #e2ddd6;
            --border-light: #f0ece6;
            --radius-sm: 6px;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 76px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            overflow-x: hidden;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 2px;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--primary);
        }

        /* ===== Utility ===== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-pad {
            padding: 80px 0;
        }

        .section-pad-sm {
            padding: 50px 0;
        }

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

        .text-accent {
            color: var(--accent);
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent);
            background: var(--accent-light);
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.2rem;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .section-sub {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 50px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 4px 14px rgba(201, 169, 110, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary-dark);
            box-shadow: 0 8px 28px rgba(201, 169, 110, 0.45);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(201, 169, 110, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 43, 74, 0.2);
        }
        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
        }
        .btn-white:hover {
            background: var(--bg-alt);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.9rem;
        }

        /* ===== Tags / Badges ===== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 500;
            border-radius: 20px;
            background: var(--bg-alt);
            color: var(--text-light);
            transition: background var(--transition), color var(--transition);
        }
        .tag:hover {
            background: var(--accent-light);
            color: var(--primary);
        }
        .tag-accent {
            background: var(--accent-light);
            color: var(--primary);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 20px;
            background: var(--accent);
            color: var(--primary-dark);
        }
        .badge i {
            font-size: 0.7rem;
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 30px rgba(0, 0, 0, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            padding: 0 24px;
            max-width: var(--max-width);
            margin: 0 auto;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .logo .logo-mark {
            display: inline-block;
            width: 32px;
            height: 32px;
            background: var(--accent);
            border-radius: 8px;
            margin-right: 6px;
            position: relative;
        }
        .logo .logo-mark::after {
            content: "M";
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1rem;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-list a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text);
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--primary);
            border-bottom-color: var(--accent);
        }
        .nav-list a.active {
            color: var(--primary);
            border-bottom-color: var(--accent);
        }
        .nav-list .nav-cta {
            background: var(--accent);
            color: var(--primary-dark) !important;
            padding: 10px 24px;
            border-radius: 50px;
            border: none !important;
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(201, 169, 110, 0.3);
            transition: all var(--transition);
        }
        .nav-list .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(201, 169, 110, 0.4);
            color: var(--primary-dark) !important;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Mobile Nav ===== */
        @media (max-width: 820px) {
            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px 28px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
                border-bottom: 1px solid var(--border);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-list a {
                padding: 14px 0;
                border-bottom: 1px solid var(--border-light);
                width: 100%;
                font-size: 1.05rem;
            }
            .nav-list a:last-of-type {
                border-bottom: none;
            }
            .nav-list .nav-cta {
                margin-top: 12px;
                text-align: center;
                width: 100%;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            margin-top: var(--header-height);
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.02);
            transition: transform 8s ease;
        }
        .hero:hover .hero-bg {
            transform: scale(1.06);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(9, 29, 51, 0.85) 0%, rgba(15, 43, 74, 0.60) 60%, rgba(201, 169, 110, 0.15) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            padding: 60px 24px;
            color: #fff;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent-light);
            margin-bottom: 24px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            font-size: 3.2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .hero {
                min-height: 70vh;
            }
        }
        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                gap: 12px;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Services / Features ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-light);
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 20px;
            transition: background var(--transition);
        }
        .service-card:hover .service-icon {
            background: var(--accent);
        }
        .service-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--primary);
        }
        .service-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.6;
        }

        @media (max-width: 900px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== About / Intro ===== */
        .about-wrap {
            display: flex;
            align-items: center;
            gap: 60px;
        }
        .about-image {
            flex: 0 0 45%;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .about-image img {
            width: 100%;
            height: 380px;
            object-fit: cover;
            display: block;
        }
        .about-image::after {
            content: "";
            position: absolute;
            inset: 0;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            pointer-events: none;
        }
        .about-text {
            flex: 1;
        }
        .about-text h2 {
            font-size: 2rem;
            margin-bottom: 16px;
        }
        .about-text p {
            color: var(--text-light);
            margin-bottom: 16px;
            font-size: 1rem;
            line-height: 1.8;
        }
        .about-stats {
            display: flex;
            gap: 40px;
            margin-top: 28px;
        }
        .about-stat {
            text-align: center;
        }
        .about-stat .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .about-stat .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        @media (max-width: 860px) {
            .about-wrap {
                flex-direction: column;
                gap: 32px;
            }
            .about-image {
                flex: 0 0 100%;
                width: 100%;
            }
            .about-image img {
                height: 260px;
            }
            .about-stats {
                gap: 24px;
                flex-wrap: wrap;
                justify-content: center;
            }
            .about-stat .num {
                font-size: 1.8rem;
            }
        }

        /* ===== Latest Posts (CMS) ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .post-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .post-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent-light);
        }
        .post-card .post-img {
            height: 200px;
            background: var(--bg-alt);
            overflow: hidden;
            position: relative;
        }
        .post-card .post-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .post-card:hover .post-img img {
            transform: scale(1.05);
        }
        .post-card .post-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .post-card .post-meta .post-cat {
            background: var(--accent-light);
            color: var(--primary);
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 500;
        }
        .post-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--primary);
            line-height: 1.4;
        }
        .post-card h3 a {
            color: var(--primary);
        }
        .post-card h3 a:hover {
            color: var(--accent);
        }
        .post-card .post-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 12px;
        }
        .post-card .post-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }
        .post-card .post-foot a {
            color: var(--primary);
            font-weight: 500;
        }
        .post-card .post-foot a:hover {
            color: var(--accent);
        }

        .posts-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            color: var(--text-light);
            font-size: 1.05rem;
        }
        .posts-empty i {
            color: var(--accent);
            margin-right: 8px;
        }

        @media (max-width: 900px) {
            .posts-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 600px) {
            .posts-grid {
                grid-template-columns: 1fr;
            }
            .post-card .post-img {
                height: 180px;
            }
        }

        /* ===== Process / Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: background var(--transition);
        }
        .process-step:hover .step-num {
            background: var(--accent-hover);
        }
        .process-step h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.5;
        }

        @media (max-width: 900px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .process-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Testimonials / Trust ===== */
        .trust-wrap {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .trust-wrap::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -20%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.06);
            pointer-events: none;
        }
        .trust-wrap .section-title {
            color: #fff;
        }
        .trust-wrap .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .trust-logos {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px 60px;
            margin-top: 32px;
        }
        .trust-logo-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.95rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            transition: color var(--transition);
        }
        .trust-logo-item i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .trust-logo-item:hover {
            color: rgba(255, 255, 255, 0.8);
        }
        .trust-stats-row {
            display: flex;
            justify-content: center;
            gap: 60px;
            margin-top: 40px;
            flex-wrap: wrap;
        }
        .trust-stat {
            text-align: center;
        }
        .trust-stat .num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .trust-stat .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .trust-wrap {
                padding: 40px 24px;
            }
            .trust-stats-row {
                gap: 30px;
            }
            .trust-stat .num {
                font-size: 2rem;
            }
            .trust-logos {
                gap: 24px 36px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color var(--transition);
        }
        .faq-question::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"]::after {
            transform: rotate(180deg);
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 169, 110, 0.08);
            pointer-events: none;
        }
        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            font-size: 1.1rem;
            padding: 14px 40px;
        }

        @media (max-width: 600px) {
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: 16px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.4);
            font-size: 1.2rem;
            transition: color var(--transition);
        }
        .footer-social a:hover {
            color: var(--accent);
        }

        @media (max-width: 860px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Section Backgrounds ===== */
        .bg-alt {
            background: var(--bg-alt);
        }
        .bg-white {
            background: #fff;
        }

        /* ===== Responsive Spacing ===== */
        @media (max-width: 768px) {
            .section-pad {
                padding: 50px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-sub {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Reveal Animations ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Misc ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 16px auto 24px;
        }
        .divider-left {
            margin: 16px 0 24px;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #3a5a9a;
            --primary-lighter: #e8edf7;
            --secondary: #c0392b;
            --secondary-light: #e74c3c;
            --accent: #f39c12;
            --bg-light: #f8f9fc;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-mid: #4a4a6a;
            --text-light: #7a7a9a;
            --border-light: #e2e6f0;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 42, 108, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 42, 108, 0.14);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: 0.30s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-light);
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; width: 100%; }
        .container-fluid { width: 100%; padding: 0 24px; }

        /* ===== Foundation 覆盖 ===== */
        .grid-container { max-width: var(--container-max); padding-left: 24px; padding-right: 24px; }
        .grid-x { margin-left: -12px; margin-right: -12px; }
        .cell { padding-left: 12px; padding-right: 12px; }

        /* ===== Site Header ===== */
        .site-header {
            background: var(--bg-white);
            box-shadow: 0 1px 4px rgba(26, 42, 108, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-h);
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border-light);
        }
        .header-inner {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .logo:hover { color: var(--primary); opacity: 0.85; }
        .logo-mark {
            display: inline-block;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 8px;
            position: relative;
            flex-shrink: 0;
        }
        .logo-mark::after {
            content: "M";
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 1.1rem;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-mid);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--primary); background: var(--primary-lighter); }
        .nav-list a.active { color: var(--primary); background: var(--primary-lighter); font-weight: 600; }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff !important;
            padding: 10px 24px;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(26, 42, 108, 0.25);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 42, 108, 0.35);
            background: linear-gradient(135deg, #15205a, var(--primary-light));
        }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; color: var(--primary); cursor: pointer; padding: 8px; border-radius: 6px; }
        .nav-toggle:hover { background: var(--primary-lighter); }

        /* ===== Article Hero ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--primary) 0%, #2c3e7a 60%, #1a1a3e 100%);
            padding: 80px 0 60px;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .breadcrumb {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.7);
            margin-bottom: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .article-hero .breadcrumb a { color: rgba(255,255,255,0.8); }
        .article-hero .breadcrumb a:hover { color: #fff; }
        .article-hero .breadcrumb span { color: rgba(255,255,255,0.5); }
        .article-hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 16px;
            max-width: 900px;
            letter-spacing: -0.5px;
        }
        .article-hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
        }
        .article-hero .meta i { margin-right: 6px; }

        /* ===== Article Content ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-body {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 48px;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-body h2 { font-size: 1.75rem; font-weight: 700; color: var(--primary); margin-top: 36px; margin-bottom: 16px; }
        .article-body h3 { font-size: 1.35rem; font-weight: 600; color: var(--text-dark); margin-top: 28px; margin-bottom: 12px; }
        .article-body p { margin-bottom: 18px; color: var(--text-mid); font-size: 1.05rem; line-height: 1.8; }
        .article-body ul, .article-body ol { margin-bottom: 18px; padding-left: 24px; }
        .article-body ul li { list-style: disc; margin-bottom: 8px; color: var(--text-mid); }
        .article-body ol li { list-style: decimal; margin-bottom: 8px; color: var(--text-mid); }
        .article-body img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-sm); }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 24px;
            margin: 24px 0;
            background: var(--primary-lighter);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-mid);
        }
        .article-body a { color: var(--secondary); font-weight: 500; text-decoration: underline; }
        .article-body a:hover { color: var(--secondary-light); }
        .article-body .tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border-light); }
        .article-body .tag-list .tag {
            background: var(--primary-lighter);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            max-width: 600px;
            margin: 0 auto;
        }
        .not-found-box i { font-size: 3.5rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.8rem; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-mid); margin-bottom: 24px; }
        .not-found-box .btn-back {
            display: inline-block;
            padding: 12px 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== Related / CTA Section ===== */
        .article-cta {
            background: var(--bg-white);
            padding: 60px 0;
            border-top: 1px solid var(--border-light);
        }
        .article-cta .cta-card {
            background: linear-gradient(135deg, var(--primary), #2c3e7a);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }
        .article-cta .cta-card h3 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .article-cta .cta-card p { font-size: 1.1rem; opacity: 0.85; margin-bottom: 24px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .article-cta .cta-card .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: var(--transition);
        }
        .article-cta .cta-card .btn-cta:hover { background: #e67e22; transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,0,0,0.25); }

        /* ===== Footer ===== */
        .site-footer {
            background: #0f1a3a;
            color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
            font-size: 0.95rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: #fff; font-size: 1.35rem; margin-bottom: 16px; }
        .footer-brand .logo .logo-mark { width: 32px; height: 32px; }
        .footer-brand p { line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h5 { color: #fff; font-weight: 600; font-size: 1rem; margin-bottom: 18px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); transition: var(--transition); }
        .footer-col ul li a:hover { color: #fff; padding-left: 4px; }
        .footer-col ul li a i { margin-right: 8px; width: 16px; text-align: center; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: #fff; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.5);
            transition: var(--transition);
        }
        .footer-social a:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
        }
        @media (max-width: 768px) {
            .nav-list { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--bg-white); flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: var(--shadow-md); border-top: 1px solid var(--border-light); }
            .nav-list.open { display: flex; }
            .nav-list a { width: 100%; padding: 12px 16px; }
            .nav-list a.nav-cta { width: 100%; justify-content: center; margin-top: 8px; }
            .nav-toggle { display: block; }
            .article-hero { padding: 48px 0 36px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 28px 20px; }
            .article-body h2 { font-size: 1.4rem; }
            .article-cta .cta-card { padding: 32px 20px; }
            .article-cta .cta-card h3 { font-size: 1.4rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero .meta { flex-direction: column; gap: 8px; font-size: 0.85rem; }
            .article-body { padding: 20px 16px; }
            .article-body p { font-size: 0.95rem; }
            .article-cta .cta-card { padding: 24px 16px; }
            .article-cta .cta-card h3 { font-size: 1.2rem; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --clr-primary: #0f172a;
            --clr-primary-light: #1e293b;
            --clr-accent: #3b82f6;
            --clr-accent-hover: #2563eb;
            --clr-accent-light: #dbeafe;
            --clr-gold: #f59e0b;
            --clr-gold-light: #fef3c7;
            --clr-text: #1e293b;
            --clr-text-light: #64748b;
            --clr-text-inverse: #f8fafc;
            --clr-bg: #ffffff;
            --clr-bg-alt: #f1f5f9;
            --clr-bg-dark: #0f172a;
            --clr-border: #e2e8f0;
            --clr-card-bg: #ffffff;
            --clr-footer-bg: #0b1120;
            --clr-footer-text: rgba(255, 255, 255, 0.7);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 30px 60px -15px rgba(0, 0, 0, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== Base Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg);
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--clr-accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--clr-accent-hover); }
        a:focus-visible { outline: 3px solid var(--clr-accent); outline-offset: 2px; border-radius: var(--radius-sm); }
        button, input, textarea, select { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--clr-primary); }
        h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.02em; }
        h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); letter-spacing: -0.015em; }
        h3 { font-size: clamp(1.3rem, 3vw, 1.8rem); }
        h4 { font-size: 1.2rem; }
        h5 { font-size: 1rem; font-weight: 600; }
        p { margin-bottom: 1rem; color: var(--clr-text); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .section-padding { padding: 80px 0; }
        @media (max-width: 768px) { .section-padding { padding: 56px 0; } .container { padding: 0 16px; } }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .text-accent { color: var(--clr-accent); }
        .text-gold { color: var(--clr-gold); }
        .mb-1 { margin-bottom: 0.5rem; }
        .mb-2 { margin-bottom: 1rem; }
        .mb-3 { margin-bottom: 1.5rem; }
        .mb-4 { margin-bottom: 2rem; }
        .mb-5 { margin-bottom: 3rem; }
        .mt-2 { margin-top: 1rem; }
        .mt-4 { margin-top: 2rem; }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--clr-accent);
            background: var(--clr-accent-light);
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-title { margin-bottom: 16px; }
        .section-subtitle { font-size: 1.1rem; color: var(--clr-text-light); max-width: 680px; margin: 0 auto 40px; line-height: 1.7; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--clr-accent);
            color: #fff;
            border-color: var(--clr-accent);
        }
        .btn-primary:hover {
            background: var(--clr-accent-hover);
            border-color: var(--clr-accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active { transform: translateY(0); box-shadow: var(--shadow-sm); }
        .btn-outline {
            background: transparent;
            color: var(--clr-accent);
            border-color: var(--clr-accent);
        }
        .btn-outline:hover {
            background: var(--clr-accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-outline:active { transform: translateY(0); }
        .btn-gold {
            background: var(--clr-gold);
            color: #1e293b;
            border-color: var(--clr-gold);
        }
        .btn-gold:hover {
            background: #d97706;
            border-color: #d97706;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-lg { padding: 16px 44px; font-size: 1.1rem; }
        .btn-sm { padding: 8px 20px; font-size: 0.9rem; }
        .btn i { font-size: 0.9em; }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
            transition: background var(--transition), box-shadow var(--transition);
            height: var(--nav-height);
        }
        .site-header.scrolled { background: rgba(255, 255, 255, 0.98); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06); }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--clr-primary);
            text-decoration: none;
            letter-spacing: -0.02em;
        }
        .logo:hover { color: var(--clr-primary); }
        .logo-mark {
            display: inline-block;
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--clr-accent), #6366f1);
            border-radius: 8px;
            flex-shrink: 0;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--clr-text);
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--clr-accent); background: var(--clr-accent-light); }
        .nav-list a.active { color: #fff; background: var(--clr-accent); }
        .nav-list a.active:hover { color: #fff; background: var(--clr-accent-hover); }
        .nav-list a.nav-cta {
            background: var(--clr-primary);
            color: #fff;
            padding: 10px 24px;
            font-weight: 600;
            border: 2px solid var(--clr-primary);
        }
        .nav-list a.nav-cta:hover {
            background: var(--clr-primary-light);
            border-color: var(--clr-primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }
        .nav-list a.nav-cta i { font-size: 0.85em; }
        .nav-toggle { display: none; font-size: 1.5rem; color: var(--clr-primary); padding: 8px; border-radius: 8px; }
        .nav-toggle:hover { background: var(--clr-bg-alt); }
        @media (max-width: 868px) {
            .nav-toggle { display: block; }
            .nav-list {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                border-bottom: 1px solid var(--clr-border);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                pointer-events: none;
            }
            .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
            .nav-list a { width: 100%; padding: 12px 20px; border-radius: var(--radius-md); font-size: 1rem; }
            .nav-list a.nav-cta { margin-top: 8px; text-align: center; justify-content: center; }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 82vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 40px) 0 60px;
            background: var(--clr-bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(59, 130, 246, 0.15), transparent 70%),
                        radial-gradient(ellipse at 80% 20%, rgba(245, 158, 11, 0.08), transparent 50%);
        }
        .hero-content { position: relative; z-index: 2; max-width: 780px; }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(59, 130, 246, 0.15);
            color: #93c5fd;
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid rgba(59, 130, 246, 0.2);
            margin-bottom: 24px;
        }
        .hero-badge i { font-size: 0.8rem; }
        .hero-title { color: #fff; margin-bottom: 20px; }
        .hero-title span { background: linear-gradient(135deg, #60a5fa, #a78bfa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc { font-size: 1.2rem; color: rgba(255, 255, 255, 0.7); max-width: 600px; margin-bottom: 36px; line-height: 1.8; }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
        .hero-actions .btn-primary { background: var(--clr-accent); border-color: var(--clr-accent); color: #fff; }
        .hero-actions .btn-primary:hover { background: #2563eb; border-color: #2563eb; }
        .hero-actions .btn-outline { color: #fff; border-color: rgba(255,255,255,0.3); }
        .hero-actions .btn-outline:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.5); color: #fff; }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.08);
        }
        .hero-stat { text-align: left; }
        .hero-stat-num { font-size: 2rem; font-weight: 800; color: #fff; letter-spacing: -0.02em; }
        .hero-stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.5); margin-top: 2px; }
        @media (max-width: 768px) {
            .hero-section { min-height: 70vh; padding: calc(var(--nav-height) + 24px) 0 40px; }
            .hero-desc { font-size: 1rem; }
            .hero-stats { flex-wrap: wrap; gap: 24px; }
            .hero-stat { flex: 1 1 40%; }
            .hero-stat-num { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero-actions { flex-direction: column; width: 100%; }
            .hero-actions .btn { width: 100%; justify-content: center; }
            .hero-stats { gap: 16px; }
            .hero-stat { flex: 1 1 45%; }
        }

        /* ===== Section Common ===== */
        .section-alt { background: var(--clr-bg-alt); }
        .section-dark { background: var(--clr-bg-dark); color: #fff; }
        .section-dark h2, .section-dark h3, .section-dark .section-subtitle { color: #fff; }
        .section-dark .section-subtitle { color: rgba(255,255,255,0.65); }
        .section-dark .section-label { background: rgba(59,130,246,0.2); color: #93c5fd; }

        /* ===== Cards ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: var(--clr-card-bg);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--clr-accent); }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 20px;
            background: var(--clr-accent);
        }
        .card-icon.gold { background: var(--clr-gold); }
        .card-icon.purple { background: #8b5cf6; }
        .card-icon.teal { background: #14b8a6; }
        .card h3 { font-size: 1.2rem; margin-bottom: 12px; }
        .card p { font-size: 0.95rem; color: var(--clr-text-light); margin-bottom: 0; }
        .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--clr-accent);
            background: var(--clr-accent-light);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 12px;
        }

        /* ===== Process Steps ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            counter-reset: step;
        }
        .process-step {
            background: var(--clr-card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border);
            transition: all var(--transition);
            position: relative;
        }
        .process-step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
        .process-step::before {
            counter-increment: step;
            content: "0" counter(step);
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            color: var(--clr-accent);
            background: var(--clr-accent-light);
            padding: 2px 14px;
            border-radius: 12px;
            display: inline-block;
            margin-bottom: 16px;
        }
        .process-step h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .process-step p { font-size: 0.9rem; color: var(--clr-text-light); margin-bottom: 0; }
        .process-step-icon { font-size: 2rem; color: var(--clr-accent); margin-bottom: 12px; }
        @media (max-width: 768px) { .process-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 520px) { .process-grid { grid-template-columns: 1fr; } }

        /* ===== Scenarios ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .scenario-card {
            background: var(--clr-card-bg);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border-left: 4px solid var(--clr-accent);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border);
            border-left-width: 4px;
            transition: all var(--transition);
        }
        .scenario-card:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
        .scenario-card.gold { border-left-color: var(--clr-gold); }
        .scenario-card.purple { border-left-color: #8b5cf6; }
        .scenario-card.teal { border-left-color: #14b8a6; }
        .scenario-card h4 { font-size: 1.1rem; margin-bottom: 8px; }
        .scenario-card p { font-size: 0.93rem; color: var(--clr-text-light); margin-bottom: 0; }
        .scenario-card .scenario-icon { font-size: 1.5rem; color: var(--clr-accent); margin-bottom: 12px; }
        .scenario-card.gold .scenario-icon { color: var(--clr-gold); }
        .scenario-card.purple .scenario-icon { color: #8b5cf6; }
        .scenario-card.teal .scenario-icon { color: #14b8a6; }

        /* ===== Testimonial / Quote ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        .testimonial-card {
            background: var(--clr-card-bg);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border);
        }
        .testimonial-card .quote { font-size: 1.05rem; font-style: italic; color: var(--clr-text); margin-bottom: 16px; line-height: 1.7; }
        .testimonial-card .author { font-weight: 600; font-size: 0.95rem; color: var(--clr-primary); }
        .testimonial-card .role { font-size: 0.85rem; color: var(--clr-text-light); }
        .testimonial-card .stars { color: var(--clr-gold); margin-bottom: 12px; font-size: 0.9rem; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid var(--clr-border);
            padding: 20px 0;
        }
        .faq-item:first-child { border-top: 1px solid var(--clr-border); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--clr-primary);
            cursor: pointer;
            gap: 16px;
            user-select: none;
        }
        .faq-question i { color: var(--clr-accent); transition: transform var(--transition); font-size: 0.9rem; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--clr-text-light);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open { max-height: 400px; padding-top: 16px; }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--clr-primary) 0%, #1a2a6c 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.15), transparent 70%),
                        radial-gradient(ellipse at 70% 80%, rgba(245,158,11,0.08), transparent 50%);
        }
        .cta-section h2 { color: #fff; font-size: clamp(1.8rem, 4vw, 2.8rem); margin-bottom: 16px; position: relative; z-index: 1; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; position: relative; z-index: 1; }
        .cta-section .btn { position: relative; z-index: 1; }
        .cta-section .btn-primary { background: var(--clr-gold); border-color: var(--clr-gold); color: #1e293b; }
        .cta-section .btn-primary:hover { background: #d97706; border-color: #d97706; color: #fff; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-footer-bg);
            color: var(--clr-footer-text);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-brand .logo { color: #fff; font-size: 1.3rem; margin-bottom: 16px; }
        .footer-brand .logo .logo-mark { background: linear-gradient(135deg, var(--clr-accent), #6366f1); }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 360px; }
        .footer-col h5 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 18px; letter-spacing: 0.02em; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.5); font-size: 0.9rem; transition: color var(--transition); text-decoration: none; }
        .footer-col ul li a:hover { color: #fff; }
        .footer-col ul li a i { width: 20px; margin-right: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-bottom a { color: rgba(255,255,255,0.35); text-decoration: none; }
        .footer-bottom a:hover { color: #fff; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.4);
            transition: all var(--transition);
            font-size: 1rem;
        }
        .footer-social a:hover { background: var(--clr-accent); color: #fff; transform: translateY(-2px); }
        @media (max-width: 868px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== Misc ===== */
        .cover-img {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .flex-center { display: flex; align-items: center; justify-content: center; }
        .gap-2 { gap: 12px; }
        .gap-4 { gap: 24px; }
        .inline-flex { display: inline-flex; align-items: center; }
        .badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 12px;
            background: var(--clr-accent-light);
            color: var(--clr-accent);
        }
        .badge-gold { background: var(--clr-gold-light); color: #92400e; }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--clr-bg-alt); }
        ::-webkit-scrollbar-thumb { background: var(--clr-text-light); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--clr-text); }

        /* ===== Animations ===== */
        @keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
        .animate-in { animation: fadeInUp 0.7s ease forwards; }
        .animate-delay-1 { animation-delay: 0.1s; }
        .animate-delay-2 { animation-delay: 0.2s; }
        .animate-delay-3 { animation-delay: 0.3s; }
        .animate-delay-4 { animation-delay: 0.4s; }