/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2744;
            --primary-dark: #0f1a2e;
            --primary-light: #2a3f66;
            --accent: #e8a838;
            --accent-hover: #d4942f;
            --accent-light: #f5d48a;
            --secondary: #2d8c6c;
            --secondary-hover: #237558;
            --bg-light: #f5f3ef;
            --bg-white: #ffffff;
            --bg-dark: #1a2744;
            --text-dark: #1e1e2a;
            --text-muted: #6b7280;
            --text-light: #f8f7f4;
            --border-color: #e5e3df;
            --border-radius: 12px;
            --border-radius-sm: 8px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 39, 68, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 39, 68, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 39, 68, 0.14);
            --shadow-xl: 0 30px 80px rgba(26, 39, 68, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1280px;
            --nav-height: 76px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            background: var(--bg-light);
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }

        /* ===== Container ===== */
        .container-custom {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        @media (max-width: 576px) {
            .container-custom {
                padding: 0 1rem;
            }
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-dark);
            margin-top: 0;
            margin-bottom: 0.5rem;
        }
        h1 {
            font-size: clamp(2rem, 5vw, 3.6rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.2rem, 2.2vw, 1.6rem);
        }
        h4 {
            font-size: 1.15rem;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
            color: var(--text-muted);
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .text-primary-custom {
            color: var(--primary) !important;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(26, 39, 68, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .site-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .site-logo:hover {
            color: var(--accent);
        }
        .site-logo .logo-short {
            display: none;
        }
        @media (max-width: 576px) {
            .site-logo .logo-full {
                display: none;
            }
            .site-logo .logo-short {
                display: inline;
            }
        }

        /* Nav Links */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links .nav-link {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.75);
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-links .nav-link:hover,
        .nav-links .nav-link.active {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-links .nav-link.active {
            color: var(--accent);
            background: rgba(232, 168, 56, 0.12);
        }

        /* Nav CTA */
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.6rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-dark);
            background: var(--accent);
            border: none;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }
        .nav-cta:hover {
            background: var(--accent-hover);
            color: var(--text-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.35);
        }
        .nav-cta:active {
            transform: translateY(0);
        }

        /* Mobile Toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 40px;
            height: 40px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0;
            gap: 5px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links-wrapper {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                padding: 1.5rem 2rem;
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                pointer-events: none;
            }
            .nav-links-wrapper.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-links {
                flex-direction: column;
                gap: 0.5rem;
                width: 100%;
            }
            .nav-links .nav-link {
                padding: 0.75rem 1rem;
                font-size: 1.05rem;
                width: 100%;
                text-align: center;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                padding: 0.75rem 1.5rem;
                margin-top: 0.75rem;
            }
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: calc(var(--nav-height) + 2rem) 0 4rem;
            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: 0.25;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% {
                transform: scale(1.05);
            }
            100% {
                transform: scale(1.15);
            }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 39, 68, 0.92) 0%, rgba(26, 39, 68, 0.70) 50%, rgba(26, 39, 68, 0.88) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }
        .hero-section h1 {
            color: var(--text-light);
            margin-bottom: 1.2rem;
            font-weight: 800;
        }
        .hero-section .hero-sub {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: rgba(255, 255, 255, 0.7);
            max-width: 640px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }
        .hero-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1rem;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 50px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            background: var(--accent);
            border: none;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-primary-custom i {
            font-size: 0.9rem;
        }
        .btn-primary-custom:hover {
            background: var(--accent-hover);
            color: var(--text-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 168, 56, 0.35);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
        }
        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.2rem;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-light);
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .btn-outline-light-custom:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(232, 168, 56, 0.08);
            transform: translateY(-2px);
        }
        @media (max-width: 576px) {
            .hero-section {
                min-height: 80vh;
                padding-top: calc(var(--nav-height) + 1rem);
                padding-bottom: 2.5rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-padding-sm {
            padding: 3.5rem 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            margin-bottom: 0.75rem;
        }
        .section-title p {
            max-width: 620px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0.75rem auto 1.5rem;
        }
        .bg-white-section {
            background: var(--bg-white);
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section h2,
        .bg-dark-section h3,
        .bg-dark-section .section-title p {
            color: var(--text-light);
        }
        .bg-dark-section .text-muted {
            color: rgba(255, 255, 255, 0.6) !important;
        }

        /* ===== Card Base ===== */
        .card-custom {
            background: var(--bg-white);
            border: none;
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-body {
            padding: 1.75rem;
        }
        .card-custom .card-title {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
        }
        .card-custom .card-text {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .card-custom .card-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(232, 168, 56, 0.1);
            color: var(--accent);
            font-size: 1.5rem;
            border-radius: var(--border-radius-sm);
            margin-bottom: 1rem;
        }
        .card-custom .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        /* ===== Feature Cards Grid ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        @media (max-width: 992px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== Game / Cover Cards ===== */
        .cover-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        @media (max-width: 992px) {
            .cover-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .cover-grid {
                grid-template-columns: 1fr;
            }
        }
        .cover-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
        }
        .cover-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .cover-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: var(--transition);
        }
        .cover-card:hover img {
            transform: scale(1.05);
        }
        .cover-card .cover-body {
            padding: 1.2rem 1.5rem 1.5rem;
        }
        .cover-card .cover-body h4 {
            font-weight: 700;
            margin-bottom: 0.35rem;
        }
        .cover-card .cover-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .cover-badge {
            position: absolute;
            top: 1rem;
            left: 1rem;
            padding: 0.25rem 0.85rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-dark);
            background: var(--accent);
            border-radius: 50px;
            z-index: 2;
        }

        /* ===== Stats Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: clamp(2.2rem, 4vw, 3.2rem);
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
        }
        .stat-item .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.4rem;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }
        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.25rem;
            }
        }

        /* ===== Latest Posts / CMS List ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.75rem;
        }
        @media (max-width: 768px) {
            .posts-grid {
                grid-template-columns: 1fr;
            }
        }
        .post-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .post-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .post-card .post-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .post-card .post-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .post-card .post-cat {
            display: inline-block;
            padding: 0.15rem 0.7rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(232, 168, 56, 0.1);
            border-radius: 50px;
            margin-bottom: 0.5rem;
            align-self: flex-start;
        }
        .post-card .post-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .post-card .post-title a {
            color: var(--text-dark);
        }
        .post-card .post-title a:hover {
            color: var(--accent);
        }
        .post-card .post-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0.75rem;
            flex: 1;
        }
        .post-card .post-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .post-card .post-meta i {
            margin-right: 0.25rem;
        }
        .empty-posts {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-white);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
        }

        /* ===== Steps / Process ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.75rem;
            counter-reset: step;
        }
        .step-item {
            text-align: center;
            counter-increment: step;
        }
        .step-number {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-light);
            background: var(--primary);
            border-radius: 50%;
            position: relative;
        }
        .step-number::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px dashed var(--accent);
            opacity: 0.3;
        }
        .step-item h4 {
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        @media (max-width: 992px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem;
            }
        }
        @media (max-width: 576px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 1.75rem;
            }
        }

        /* ===== Testimonials ===== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.75rem;
        }
        @media (max-width: 992px) {
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
        }
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--border-radius);
            padding: 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-card .stars {
            color: var(--accent);
            font-size: 0.95rem;
            margin-bottom: 0.75rem;
        }
        .testimonial-card blockquote {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-style: italic;
            margin-bottom: 1rem;
            line-height: 1.7;
        }
        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .testimonial-card .author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .testimonial-card .author .name {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .testimonial-card .author .role {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--border-radius-sm);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 1.2rem 1.5rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            transition: var(--transition);
            gap: 1rem;
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.active i {
            transform: rotate(180deg);
        }
        .faq-question:hover {
            background: rgba(232, 168, 56, 0.04);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 1.5rem 1.2rem;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }
        .cta-content h2 {
            color: var(--text-light);
            margin-bottom: 0.75rem;
        }
        .cta-content p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            margin-bottom: 2rem;
        }
        .cta-content .btn-primary-custom {
            font-size: 1.1rem;
            padding: 1rem 2.8rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.6);
            padding: 3.5rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand .site-logo {
            margin-bottom: 0.75rem;
            font-size: 1.25rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 360px;
        }
        .footer-col h5 {
            color: var(--text-light);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }
        @media (max-width: 576px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Utility ===== */
        .gap-1 {
            gap: 0.25rem;
        }
        .gap-2 {
            gap: 0.5rem;
        }
        .gap-3 {
            gap: 1rem;
        }
        .gap-4 {
            gap: 1.5rem;
        }
        .gap-5 {
            gap: 2rem;
        }
        .mt-1 {
            margin-top: 0.25rem;
        }
        .mt-2 {
            margin-top: 0.5rem;
        }
        .mt-3 {
            margin-top: 1rem;
        }
        .mt-4 {
            margin-top: 1.5rem;
        }
        .mt-5 {
            margin-top: 2.5rem;
        }
        .mb-1 {
            margin-bottom: 0.25rem;
        }
        .mb-2 {
            margin-bottom: 0.5rem;
        }
        .mb-3 {
            margin-bottom: 1rem;
        }
        .mb-4 {
            margin-bottom: 1.5rem;
        }
        .mb-5 {
            margin-bottom: 2.5rem;
        }
        .text-center {
            text-align: center;
        }
        .d-flex {
            display: flex;
        }
        .align-center {
            align-items: center;
        }
        .justify-center {
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .w-100 {
            width: 100%;
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .section-padding-sm {
                padding: 2.5rem 0;
            }
            .section-title {
                margin-bottom: 2rem;
            }
            .hero-section {
                min-height: 70vh;
            }
        }
        @media (max-width: 576px) {
            .section-padding {
                padding: 2.5rem 0;
            }
            .hero-section {
                min-height: 65vh;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .cover-card .cover-body {
                padding: 1rem 1.2rem 1.2rem;
            }
            .post-card .post-body {
                padding: 1rem 1.2rem 1.2rem;
            }
            .faq-question {
                padding: 1rem 1.2rem;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 1.2rem;
            }
            .faq-answer.open {
                padding: 0 1.2rem 1rem;
            }
        }

        /* ===== Focus Visible ===== */
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease both;
        }
        .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;
        }

/* roulang page: article */
:root {
            --primary: #0b5e7c;
            --primary-dark: #084a63;
            --primary-light: #e8f4fa;
            --accent: #f59e0b;
            --accent-dark: #d97706;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-weak: #94a3b8;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 8px 32px rgba(0,0,0,0.06);
            --shadow-hover: 0 16px 48px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: 'Inter','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
            --spacer: 80px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width:768px) {
            .container-custom { padding: 0 16px; }
        }

        /* Header */
        .site-header {
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1050;
            height: 72px;
            display: flex;
            align-items: center;
            transition: var(--transition);
        }
        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text-primary) !important;
            text-decoration: none !important;
        }
        .site-logo i { color: var(--accent); font-size: 1.6rem; }
        .logo-short { display: none; }
        .nav-links-wrapper { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 8px;
            margin: 0;
            padding: 0;
        }
        .nav-links li { margin: 0; padding: 0; }
        .nav-link {
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-secondary) !important;
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover,
        .nav-link.active {
            background: var(--primary-light);
            color: var(--primary) !important;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 40px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: #fff !important;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(245,158,11,0.35);
            text-decoration: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(245,158,11,0.45);
            color: #fff !important;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 8px;
        }
        .nav-toggle span {
            width: 28px;
            height: 3px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        @media (max-width: 820px) {
            .logo-full { display: none; }
            .logo-short { display: inline; }
            .nav-links-wrapper {
                position: fixed;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(12px);
                -webkit-backdrop-filter: blur(12px);
                padding: 24px 20px;
                flex-direction: column;
                align-items: stretch;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                box-shadow: var(--shadow);
                z-index: 1040;
            }
            .nav-links-wrapper.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-links { flex-direction: column; gap: 12px; width: 100%; }
            .nav-link { padding: 12px 20px; width: 100%; text-align: center; }
            .nav-cta { width: 100%; justify-content: center; margin-top: 8px; }
            .nav-toggle { display: flex; }
        }

        /* Article Hero */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: var(--primary-dark);
            color: #fff;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }
        .article-hero .container-custom { position: relative; z-index: 2; width: 100%; }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            max-width: 900px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 32px;
            font-size: 0.95rem;
            color: rgba(255,255,255,0.8);
        }
        .article-meta i { margin-right: 6px; }
        .article-meta .badge-cat {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: var(--accent);
            color: #1e293b;
            font-weight: 600;
            font-size: 0.85rem;
        }
        @media (max-width:768px) {
            .article-hero { padding: 60px 0 40px; min-height: 240px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-meta { gap: 10px 20px; font-size: 0.85rem; }
        }

        /* Article Content */
        .article-section {
            padding: 60px 0 80px;
        }
        .article-content {
            max-width: 820px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 48px 56px;
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-content h2,
        .article-content h3,
        .article-content h4 {
            margin-top: 32px;
            margin-bottom: 16px;
            font-weight: 700;
            color: var(--primary-dark);
        }
        .article-content h2 { font-size: 1.6rem; }
        .article-content h3 { font-size: 1.35rem; }
        .article-content p { margin-bottom: 18px; }
        .article-content ul,
        .article-content ol {
            margin-bottom: 18px;
            padding-left: 28px;
        }
        .article-content li { margin-bottom: 8px; }
        .article-content a { font-weight: 500; border-bottom: 1px solid transparent; }
        .article-content a:hover { border-bottom-color: var(--primary); }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--primary-light);
            padding: 20px 28px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-content img {
            margin: 28px 0;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow);
        }
        .article-content .table-wrap {
            overflow-x: auto;
            margin: 28px 0;
        }
        .article-content table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-body);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .article-content table th,
        .article-content table td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border);
            text-align: left;
        }
        .article-content table th {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }
        .article-content table tr:last-child td { border-bottom: none; }
        .article-content code {
            background: #f1f5f9;
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.9em;
            color: #e11d48;
        }
        .article-content pre {
            background: #1e293b;
            color: #e2e8f0;
            padding: 24px 28px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 28px 0;
            font-size: 0.92rem;
        }
        .article-content pre code {
            background: none;
            color: inherit;
            padding: 0;
        }
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box i { font-size: 4rem; color: var(--text-weak); margin-bottom: 24px; }
        .not-found-box h3 { font-size: 1.8rem; color: var(--text-primary); margin-bottom: 16px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 32px; }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            color: #fff;
        }
        @media (max-width:768px) {
            .article-content { padding: 28px 20px; font-size: 0.98rem; }
            .article-content h2 { font-size: 1.35rem; }
            .article-content h3 { font-size: 1.15rem; }
        }

        /* Related Section */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-body);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 40px;
            text-align: center;
            color: var(--text-primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .related-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: 20px 24px 24px;
        }
        .related-card .card-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .related-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .read-more {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .related-card .card-body .read-more:hover { color: var(--primary-dark); gap: 10px; }
        @media (max-width: 992px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-section .section-title { font-size: 1.4rem; }
        }

        /* CTA */
        .article-cta {
            padding: 60px 0;
            background: linear-gradient(135deg, var(--primary-dark), #062d3b);
            color: #fff;
            text-align: center;
        }
        .article-cta h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .article-cta p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.8);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .article-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 16px 48px;
            border-radius: 50px;
            background: var(--accent);
            color: #1e293b;
            font-weight: 700;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: 0 6px 28px rgba(245,158,11,0.4);
            border: none;
            cursor: pointer;
        }
        .article-cta .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245,158,11,0.55);
            color: #1e293b;
        }
        @media (max-width:768px) {
            .article-cta h2 { font-size: 1.5rem; }
            .article-cta p { font-size: 0.98rem; }
            .article-cta .cta-btn { padding: 14px 32px; font-size: 1rem; }
        }

        /* Footer */
        .site-footer {
            background: #0f172a;
            color: rgba(255,255,255,0.7);
            padding: 60px 0 0;
        }
        .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 .site-logo { color: #fff !important; font-size: 1.25rem; margin-bottom: 16px; }
        .footer-brand .site-logo i { color: var(--accent); }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 360px; margin-top: 12px; }
        .footer-col h5 {
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-col ul { list-style: none; padding: 0; margin: 0; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: rgba(255,255,255,0.65);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding: 24px 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: var(--accent); }
        @media (max-width: 992px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 640px) {
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* Scroll to top */
        .scroll-top {
            position: fixed;
            bottom: 40px;
            right: 40px;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            z-index: 1050;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
        }
        .scroll-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            background: var(--primary-dark);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        @media (max-width:640px) {
            .scroll-top { bottom: 24px; right: 24px; width: 44px; height: 44px; font-size: 1.1rem; }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #0d1b2a;
            --bg-card: #ffffff;
            --text-main: #212529;
            --text-muted: #6c757d;
            --text-light: #f8f9fa;
            --border-color: #dee2e6;
            --shadow-sm: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.06);
            --shadow-md: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.12);
            --shadow-hover: 0 0.75rem 2rem rgba(230, 57, 70, 0.15);
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1.25rem;
            --radius-xl: 1.75rem;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ========== 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-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ========== Container ========== */
        .container-custom {
            max-width: var(--container-max);
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header .container-custom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary) !important;
            letter-spacing: -0.01em;
            transition: var(--transition);
        }
        .site-logo i {
            font-size: 1.5rem;
            color: var(--primary);
        }
        .site-logo:hover {
            color: var(--primary-dark) !important;
            transform: scale(1.02);
        }
        .logo-short {
            display: none;
        }

        .nav-links-wrapper {
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            list-style: none;
        }

        .nav-link {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.06);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.1);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.55rem 1.5rem;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff !important;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 50px;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .nav-cta i {
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .nav-cta:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
            color: #fff !important;
        }
        .nav-cta:active {
            transform: translateY(0) scale(0.98);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-sm);
            cursor: pointer;
            padding: 8px;
            gap: 4px;
            transition: var(--transition);
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2.5px;
            background: var(--text-main);
            border-radius: 3px;
            transition: var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ========== Hero ========== */
        .hero-section {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            background-blend-mode: overlay;
            padding: 5rem 0 4rem;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.85) 0%, rgba(29, 53, 87, 0.75) 100%);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1.2rem;
            background: rgba(230, 57, 70, 0.2);
            border: 1px solid rgba(230, 57, 70, 0.3);
            border-radius: 50px;
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-section h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        .hero-section h1 span {
            color: var(--primary-light);
        }
        .hero-section .lead {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
        }
        .hero-actions .btn-hero-primary {
            padding: 0.85rem 2.5rem;
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            border-radius: 50px;
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero-actions .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(230, 57, 70, 0.45);
        }
        .hero-actions .btn-hero-secondary {
            padding: 0.85rem 2.5rem;
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: 50px;
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            backdrop-filter: blur(4px);
        }
        .hero-actions .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 2.5rem;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: center;
            color: #fff;
        }
        .hero-stats .stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1.2;
        }
        .hero-stats .stat-item .label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 0.25rem;
        }

        /* ========== Section通用 ========== */
        .section-block {
            padding: 4.5rem 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 2.5rem;
            text-align: center;
        }
        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-header .section-title {
            margin-bottom: 0.5rem;
        }
        .section-header .section-subtitle {
            margin-bottom: 0;
        }

        .bg-alt {
            background: #fff;
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: #fff;
        }
        .bg-dark-section .section-title {
            color: #fff;
        }
        .bg-dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ========== Cards ========== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.75rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-card .icon-wrap {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.1), rgba(230, 57, 70, 0.05));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.75rem;
            color: var(--primary);
            transition: var(--transition);
        }
        .feature-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-main);
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ========== 流程步骤 ========== */
        .steps-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
        }
        .step-item {
            flex: 1 1 200px;
            max-width: 240px;
            text-align: center;
            position: relative;
        }
        .step-item .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .step-item h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
        }
        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .step-item::after {
            content: '→';
            position: absolute;
            right: -1.2rem;
            top: 1.2rem;
            font-size: 1.5rem;
            color: var(--primary);
            font-weight: 300;
            opacity: 0.5;
        }
        .step-item:last-child::after {
            display: none;
        }

        /* ========== 场景卡片 ========== */
        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        .scene-card .scene-img {
            height: 200px;
            background: var(--secondary) url('/assets/images/coverpic/cover-2.png') center center / cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .scene-card .scene-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .scene-card .scene-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .scene-card .scene-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            flex: 1;
            margin-bottom: 0;
            line-height: 1.7;
        }
        .scene-card .scene-tag {
            align-self: flex-start;
            margin-top: 0.75rem;
            padding: 0.2rem 0.8rem;
            background: rgba(230, 57, 70, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(230, 57, 70, 0.2);
        }
        .faq-question {
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-question[aria-expanded="true"]::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-question:hover {
            color: var(--primary);
            background: rgba(230, 57, 70, 0.03);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary), var(--bg-dark));
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-cta {
            padding: 0.9rem 3rem;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border: none;
            border-radius: 50px;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.4);
            transition: var(--transition);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.03);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.5);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-footer .footer-brand .site-logo {
            color: var(--primary-light) !important;
            margin-bottom: 0.75rem;
            font-size: 1.25rem;
        }
        .site-footer .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 360px;
        }
        .site-footer .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            gap: 0.75rem;
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--primary-light);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 2.5rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
            .step-item::after {
                display: none;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .logo-full {
                display: none;
            }
            .logo-short {
                display: inline;
            }

            .nav-links-wrapper {
                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);
                padding: 1rem 1.5rem 1.5rem;
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
            }
            .nav-links-wrapper.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            .nav-links {
                flex-direction: column;
                gap: 0.25rem;
                width: 100%;
            }
            .nav-links li {
                width: 100%;
            }
            .nav-link {
                padding: 0.7rem 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                margin-top: 0.5rem;
                padding: 0.7rem 1.5rem;
            }
            .nav-toggle {
                display: flex;
            }

            .hero-section {
                min-height: 60vh;
                padding: 3.5rem 0 3rem;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section .lead {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-stats .stat-item .num {
                font-size: 1.6rem;
            }

            .section-block {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }

            .steps-row {
                gap: 1.25rem;
            }
            .step-item {
                flex: 1 1 100%;
                max-width: 100%;
                display: flex;
                gap: 1rem;
                text-align: left;
                align-items: flex-start;
            }
            .step-item .step-num {
                flex-shrink: 0;
                margin: 0;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta {
                width: 100%;
                justify-content: center;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-actions .btn-hero-primary,
            .hero-actions .btn-hero-secondary {
                width: 100%;
                max-width: 320px;
                justify-content: center;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
            .scene-card .scene-img {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section .lead {
                font-size: 0.92rem;
            }
            .hero-stats .stat-item .num {
                font-size: 1.3rem;
            }
            .hero-stats .stat-item .label {
                font-size: 0.8rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 0.9rem 1.1rem;
            }
            .faq-answer {
                font-size: 0.88rem;
                padding: 0 1.1rem 1rem;
            }
            .cta-section h2 {
                font-size: 1.35rem;
            }
            .cta-section p {
                font-size: 0.92rem;
            }
        }

        /* ========== 辅助 ========== */
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .gap-3 {
            gap: 1.5rem;
        }
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mt-3 {
            margin-top: 1.5rem;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .text-center {
            text-align: center;
        }
        .fw-700 {
            font-weight: 700;
        }
        .rounded-pill {
            border-radius: 50px;
        }
        .shadow-hover:hover {
            box-shadow: var(--shadow-hover);
        }