/* roulang page: index */
:root {
            --primary: #E8501A;
            --primary-dark: #C23C11;
            --primary-light: #FDE9DE;
            --accent: #FFC53D;
            --ink: #22201C;
            --bg: #F8F4EF;
            --surface: #FFFFFF;
            --text: #26221E;
            --text-muted: #6B635A;
            --border: #E7DED3;
            --border-dark: #D8CCBE;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --radius-lg: 20px;
            --radius: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-sm: 0 10px 30px rgba(34, 32, 28, 0.07);
            --shadow-hover: 0 18px 40px rgba(232, 80, 26, 0.12);
            --shadow-header: 0 4px 20px rgba(34, 32, 28, 0.08);
            --transition: all 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--primary);
        }

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

        p {
            margin-bottom: 1.25rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ---------- 双层导航 ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-header);
        }

        .header-top {
            padding: 12px 0;
            background: var(--surface);
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(232, 80, 26, 0.25);
        }

        .brand-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 0.5px;
        }

        .header-search {
            flex: 1;
            max-width: 420px;
            margin-left: auto;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 6px 6px 18px;
            transition: var(--transition);
        }

        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(232, 80, 26, 0.12);
            background: #fff;
        }

        .header-search input {
            border: none;
            outline: none;
            background: transparent;
            flex: 1;
            font-size: 0.9rem;
            color: var(--text);
        }

        .header-search button {
            background: var(--primary);
            border: none;
            color: #fff;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .header-search button:hover {
            background: var(--primary-dark);
        }

        .btn {
            border-radius: var(--radius-pill);
            font-weight: 600;
            padding: 10px 24px;
            font-size: 0.95rem;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 80, 26, 0.28);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
        }

        .btn-accent {
            background: var(--accent);
            color: var(--ink);
        }

        .btn-accent:hover {
            background: #ffb820;
            color: var(--ink);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(255, 197, 61, 0.3);
        }

        .btn-header {
            padding: 8px 22px;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .header-nav {
            background: var(--surface);
            border-top: 1px solid var(--border);
        }

        .channel-nav {
            display: flex;
            gap: 8px;
            padding: 8px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            padding: 7px 22px;
            border-radius: var(--radius-pill);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .channel-link:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .channel-link.active {
            background: var(--primary);
            color: #fff;
        }

        .channel-link.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }

        /* ---------- Hero ---------- */
        .hero-section {
            position: relative;
            padding: clamp(48px, 7vw, 80px) 0 40px;
            background: var(--bg);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 80, 26, 0.1), transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: 20px;
            left: -40px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 197, 61, 0.12), transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 20px 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: var(--radius-pill);
            padding: 6px 18px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(232, 80, 26, 0.15);
        }

        .hero-badge i {
            margin-right: 6px;
        }

        .hero-title {
            font-size: clamp(2rem, 5vw, 3.25rem);
            font-weight: 800;
            line-height: 1.15;
            color: var(--ink);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            color: var(--primary);
        }

        .hero-sub {
            font-size: 1.05rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 480px;
        }

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

        .hero-visual {
            position: relative;
            z-index: 2;
        }

        .hero-visual img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }

        .hero-float-card {
            position: absolute;
            left: -20px;
            bottom: 24px;
            background: var(--surface);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: var(--shadow-hover);
            border: 1px solid rgba(232, 80, 26, 0.2);
            animation: floatCard 3s ease-in-out infinite;
        }

        .hero-float-card .float-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
        }

        .hero-float-card strong {
            display: block;
            font-size: 0.95rem;
            color: var(--ink);
        }

        .hero-float-card span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        @keyframes floatCard {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        /* ---------- 数据条 ---------- */
        .stats-bar {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }

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

        .stat-number {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ---------- 板块通用 ---------- */
        .section-padding {
            padding: clamp(48px, 7vw, 80px) 0;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-head h2 {
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* ---------- 三步流程 ---------- */
        .steps-section {
            background: var(--primary-light);
            padding: clamp(48px, 7vw, 80px) 0;
            border-top: 1px solid rgba(232, 80, 26, 0.08);
            border-bottom: 1px solid rgba(232, 80, 26, 0.08);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .step-item {
            text-align: center;
            padding: 36px 24px 28px;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }

        .step-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 80, 26, 0.3);
        }

        .step-item:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 64px;
            right: -26px;
            width: 40px;
            border-top: 2px dashed var(--primary);
            opacity: 0.4;
            z-index: 1;
        }

        .step-num {
            width: 56px;
            height: 56px;
            border: 2px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--primary);
            margin: 0 auto 18px;
            background: var(--surface);
            transition: var(--transition);
        }

        .step-item:hover .step-num {
            background: var(--primary);
            color: #fff;
        }

        .step-icon {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }

        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ---------- 优势 ---------- */
        .features-section {
            background: var(--surface);
            padding: clamp(48px, 7vw, 80px) 0;
        }

        .features-list {
            padding-right: 20px;
        }

        .features-list h2 {
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 24px;
            line-height: 1.3;
        }

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

        .features-list li {
            position: relative;
            padding: 12px 0 12px 38px;
            font-size: 1rem;
            line-height: 1.6;
            color: var(--text);
            border-bottom: 1px dashed var(--border);
        }

        .features-list li:last-child {
            border-bottom: none;
        }

        .features-list li strong {
            color: var(--ink);
        }

        .feat-marker {
            position: absolute;
            left: 0;
            top: 18px;
            width: 10px;
            height: 10px;
            background: var(--primary);
            border-radius: 3px;
            transform: rotate(45deg);
        }

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

        /* ---------- 案例 ---------- */
        .cases-section {
            background: var(--bg);
            padding: clamp(48px, 7vw, 80px) 0;
        }

        .case-card {
            display: flex;
            align-items: center;
            gap: 36px;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 28px;
            margin-bottom: 28px;
            transition: var(--transition);
        }

        .case-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(232, 80, 26, 0.25);
        }

        .case-card-reverse {
            flex-direction: row-reverse;
        }

        .case-img {
            flex: 0 0 42%;
        }

        .case-img img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }

        .case-content {
            flex: 1;
        }

        .case-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 10px;
        }

        .case-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            border-left: 3px solid var(--primary);
            padding-left: 14px;
        }

        .case-data {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .case-data div {
            text-align: center;
        }

        .case-data strong {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
        }

        .case-data span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--surface);
            padding: clamp(48px, 7vw, 80px) 0;
        }

        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .accordion {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background: var(--surface);
            box-shadow: 0 2px 8px rgba(34, 32, 28, 0.04);
            overflow: hidden;
        }

        .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            background: var(--surface);
            padding: 18px 20px;
            transition: var(--transition);
            border: none;
            box-shadow: none !important;
        }

        .accordion-button:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--primary-light);
            box-shadow: none !important;
        }

        .accordion-button::after {
            background-image: none !important;
            background-color: var(--primary-light);
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            color: var(--primary);
            font-size: 13px;
            flex-shrink: 0;
            transition: transform 0.3s ease;
            line-height: 1;
        }

        .accordion-button:not(.collapsed)::after {
            content: "\f068";
            transform: rotate(180deg);
            background-color: var(--primary);
            color: #fff;
        }

        .accordion-body {
            padding: 0 20px 18px;
            border-left: 3px solid var(--primary);
            margin-left: 20px;
            border-bottom-left-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ---------- 资讯 ---------- */
        .news-section {
            background: var(--bg);
            padding: clamp(48px, 7vw, 80px) 0;
            border-top: 1px solid var(--border);
        }

        .news-card {
            display: block;
            background: var(--surface);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 24px;
            height: 100%;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 80, 26, 0.3);
        }

        .badge-cat {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary-dark);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            font-size: 0.78rem;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.5;
            margin-bottom: 10px;
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card:hover h3 {
            color: var(--primary);
        }

        .news-card p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: var(--text-muted);
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

        .news-meta .read-more {
            color: var(--primary);
            font-weight: 600;
        }

        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--surface);
            border: 1px dashed var(--border-dark);
            border-radius: var(--radius);
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .empty-state i {
            font-size: 2rem;
            color: var(--border-dark);
            margin-bottom: 12px;
            display: block;
        }

        /* ---------- CTA ---------- */
        .join-section {
            position: relative;
            background: var(--ink);
            padding: clamp(56px, 8vw, 90px) 0;
            overflow: hidden;
        }

        .join-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 80, 26, 0.25), transparent 70%);
            pointer-events: none;
        }

        .join-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            left: -40px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 197, 61, 0.18), transparent 70%);
            pointer-events: none;
        }

        .join-box {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .join-box h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .join-box .join-sub {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .join-form {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 32px;
            text-align: left;
        }

        .join-form .row {
            margin-bottom: 6px;
        }

        .join-form input {
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 16px;
            outline: none;
            transition: var(--transition);
        }

        .join-form input::placeholder {
            color: #9a918a;
        }

        .join-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(255, 197, 61, 0.18);
            background: #fff;
        }

        .join-form .btn {
            width: 100%;
            padding: 14px 28px;
            font-size: 1rem;
            margin-top: 8px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #1B1A17;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
            border-top: 3px solid var(--primary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand .brand-logo {
            background: var(--primary);
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 14px;
            max-width: 280px;
        }

        .footer-grid h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-grid .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-grid .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
        }

        .footer-contact i {
            color: var(--accent);
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }

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

        /* ---------- 响应式 ---------- */
        @media (max-width: 991.98px) {
            .header-search {
                order: 3;
                max-width: 100%;
                flex: 0 0 100%;
                margin-top: 8px;
            }

            .case-card,
            .case-card-reverse {
                flex-direction: column;
                gap: 20px;
            }

            .case-img {
                flex: 0 0 auto;
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

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

            .step-item:not(:last-child)::after {
                display: none;
            }

            .features-list {
                padding-right: 0;
                margin-bottom: 28px;
            }

            .hero-float-card {
                left: 12px;
                bottom: 12px;
                padding: 10px 14px;
            }

            .hero-float-card .float-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-top-inner {
                gap: 12px;
            }

            .brand-text {
                font-size: 1.05rem;
            }

            .brand-logo {
                width: 36px;
                height: 36px;
                font-size: 17px;
            }

            .btn-header {
                padding: 7px 16px;
                font-size: 0.85rem;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .case-data {
                gap: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .join-form {
                padding: 22px 18px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .channel-link {
                padding: 7px 16px;
                font-size: 0.85rem;
            }

            .hero-title {
                font-size: 1.8rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #E8501A;
            --primary-dark: #C23C11;
            --primary-light: #FDE9DE;
            --accent: #FFC53D;
            --ink: #22201C;
            --bg: #F8F4EF;
            --surface: #FFFFFF;
            --text: #26221E;
            --text-muted: #6B635A;
            --border: #E7DED3;
            --border-dark: #D8CCBE;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --radius-pill: 999px;
            --shadow-card: 0 10px 30px rgba(34, 32, 28, 0.07);
            --shadow-hover: 0 18px 40px rgba(232, 80, 26, 0.12);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--text);
            text-decoration: none;
            transition: color .25s ease;
        }
        a:hover {
            color: var(--primary);
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(34, 32, 28, 0.08);
        }

        .header-top {
            background: #fff;
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(232, 80, 26, 0.3);
        }

        .brand-text {
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: .5px;
            color: var(--ink);
            white-space: nowrap;
        }

        .header-search {
            flex: 1;
            max-width: 420px;
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 0 6px 0 16px;
            height: 40px;
            transition: border-color .25s, box-shadow .25s;
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(232, 80, 26, 0.12);
        }
        .header-search input {
            flex: 1;
            border: none;
            background: transparent;
            font-size: .875rem;
            color: var(--text);
            outline: none;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search button {
            width: 34px;
            height: 34px;
            border: none;
            background: var(--primary);
            color: #fff;
            font-size: .8rem;
            border-radius: 50%;
            cursor: pointer;
            transition: background .25s;
        }
        .header-search button:hover {
            background: var(--primary-dark);
        }

        .btn-header {
            flex-shrink: 0;
            padding: 10px 22px;
            font-size: .9rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            border: none;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background .25s, transform .2s, box-shadow .25s;
        }
        .btn-header:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(232, 80, 26, 0.25);
        }
        .btn-header:active {
            transform: translateY(0);
        }

        .header-nav {
            background: #fff;
            border-top: 1px solid var(--border);
        }

        .channel-nav {
            display: flex;
            gap: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            padding: 10px 0;
            white-space: nowrap;
        }
        .channel-nav::-webkit-scrollbar {
            display: none;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            font-size: .9rem;
            font-weight: 600;
            color: var(--text);
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid transparent;
            transition: all .25s ease;
        }
        .channel-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .channel-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(232, 80, 26, 0.25);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-nav {
            padding: 20px 0 0;
            font-size: .85rem;
            color: var(--text-muted);
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color .2s;
        }
        .breadcrumb-nav a:hover {
            color: var(--primary);
        }
        .breadcrumb-nav .sep {
            margin: 0 8px;
            color: var(--border-dark);
        }
        .breadcrumb-nav .crumb-category {
            color: var(--text-muted);
        }
        .breadcrumb-nav .crumb-current {
            color: var(--text);
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 300px;
            display: inline-block;
            vertical-align: middle;
        }

        /* ===== Article Main ===== */
        .article-main {
            padding: 32px 0 80px;
        }

        .article-layout {
            margin-top: 24px;
        }

        .article-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            padding: 40px;
            transition: box-shadow .3s ease;
        }
        .article-card:hover {
            box-shadow: var(--shadow-hover);
        }

        .article-header {
            margin-bottom: 24px;
        }

        .article-header h1 {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 800;
            line-height: 1.3;
            color: var(--ink);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--border);
            color: var(--text-muted);
            font-size: .875rem;
        }
        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta .meta-item i {
            color: var(--primary);
            font-size: .8rem;
        }

        .article-cover {
            margin: 24px 0 32px;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .article-cover img {
            width: 100%;
            height: auto;
            aspect-ratio: 16 / 7;
            object-fit: cover;
        }

        .article-content {
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text);
        }
        .article-content p {
            margin-bottom: 1.4em;
        }
        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: var(--ink);
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--ink);
        }
        .article-content img {
            width: 100%;
            border-radius: 14px;
            border: 1px solid var(--border);
            margin: 24px 0;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            border-radius: 12px;
            padding: 16px 20px;
            margin: 24px 0;
            color: var(--text);
            font-style: normal;
        }
        .article-content blockquote p:last-child {
            margin-bottom: 0;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.4em;
            padding-left: 1.5em;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content a {
            color: var(--primary);
            border-bottom: 1px solid rgba(232, 80, 26, 0.3);
        }
        .article-content a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary-dark);
        }

        .article-footer {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            display: inline-block;
            padding: 4px 14px;
            font-size: .8rem;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-pill);
            font-weight: 500;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            font-size: .875rem;
            font-weight: 600;
            border: 1px solid var(--primary);
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--primary);
            transition: all .25s ease;
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            position: sticky;
            top: 140px;
        }

        .side-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 24px;
            margin-bottom: 20px;
        }

        .side-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-card h3 i {
            color: var(--primary);
            font-size: .95rem;
        }

        .rec-card {
            display: flex;
            gap: 12px;
            padding: 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            margin-bottom: 12px;
            transition: all .25s ease;
            background: #fff;
        }
        .rec-card:last-child {
            margin-bottom: 0;
        }
        .rec-card:hover {
            border-color: rgba(232, 80, 26, 0.3);
            box-shadow: 0 8px 20px rgba(232, 80, 26, 0.08);
            transform: translateY(-2px);
        }

        .rec-thumb {
            width: 80px;
            height: 64px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--primary-light);
        }
        .rec-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rec-info {
            flex: 1;
            min-width: 0;
        }
        .rec-info h4 {
            font-size: .9rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .rec-info p {
            font-size: .78rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 4px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .rec-info .rec-date {
            font-size: .75rem;
            color: var(--text-muted);
        }

        .side-cta {
            background: linear-gradient(135deg, var(--ink) 0%, #39342d 100%);
            border-color: transparent;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .side-cta::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 120px;
            height: 120px;
            background: rgba(255, 197, 61, 0.15);
            border-radius: 50%;
        }
        .side-cta h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.15);
        }
        .side-cta p {
            color: rgba(255, 255, 255, 0.75);
            font-size: .875rem;
            margin-bottom: 18px;
        }
        .side-cta .btn-primary {
            background: var(--accent);
            color: var(--ink);
            border: none;
            padding: 10px 24px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            width: 100%;
            transition: background .25s, transform .2s;
        }
        .side-cta .btn-primary:hover {
            background: #ffb820;
            color: var(--ink);
            transform: translateY(-2px);
        }

        .side-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .side-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: .875rem;
            font-weight: 500;
            color: var(--text);
            transition: all .2s ease;
        }
        .side-links a:hover {
            border-color: var(--primary);
            background: var(--primary-light);
            color: var(--primary);
        }
        .side-links a i {
            color: var(--primary);
            font-size: .8rem;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 100px 24px;
        }
        .not-found-icon {
            font-size: 3.5rem;
            color: var(--primary);
            margin-bottom: 24px;
        }
        .not-found h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--ink);
            margin-bottom: 12px;
        }
        .not-found p {
            color: var(--text-muted);
            margin-bottom: 28px;
        }
        .not-found .btn-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            transition: all .25s ease;
        }
        .not-found .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.75);
            padding-top: 64px;
            padding-bottom: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: .875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 260px;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-links a {
            display: block;
            padding: 5px 0;
            font-size: .875rem;
            color: rgba(255, 255, 255, 0.6);
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: .875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-contact p i {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .8rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .article-card {
                padding: 28px;
            }

            .article-sidebar {
                position: static;
                margin-top: 24px;
            }
        }

        @media (max-width: 768px) {
            .header-search {
                display: none;
            }

            .header-top-inner {
                height: 58px;
            }

            .btn-header {
                padding: 8px 16px;
                font-size: .8rem;
            }

            .brand-text {
                font-size: 1rem;
            }

            .article-card {
                padding: 20px;
            }

            .breadcrumb-nav .crumb-current {
                max-width: 180px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-text {
                font-size: .95rem;
            }
            .brand-logo {
                width: 34px;
                height: 34px;
                font-size: 17px;
            }

            .btn-header {
                padding: 7px 14px;
                font-size: .78rem;
            }

            .channel-link {
                padding: 7px 14px;
                font-size: .82rem;
            }

            .article-card {
                border-radius: var(--radius-md);
                padding: 18px;
            }

            .article-header h1 {
                font-size: 1.3rem;
            }

            .article-meta {
                gap: 10px;
                font-size: .8rem;
            }

            .article-cover {
                margin: 16px 0 20px;
            }

            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        @media (max-width: 400px) {
            .brand-text {
                font-size: .88rem;
            }
            .btn-header span {
                display: none;
            }
        }

        /* ===== Focus / Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-primary:focus-visible {
            outline-color: var(--primary-dark);
        }

/* roulang page: category1 */
:root {
            --primary: #E8501A;
            --primary-dark: #C23C11;
            --primary-light: #FDE9DE;
            --accent: #FFC53D;
            --ink: #22201C;
            --bg: #F8F4EF;
            --surface: #FFFFFF;
            --text: #26221E;
            --text-muted: #6B635A;
            --border: #E7DED3;
            --border-dark: #D8CCBE;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 10px 30px rgba(34, 32, 28, 0.07);
            --shadow-hover: 0 18px 40px rgba(232, 80, 26, 0.12);
            --shadow-header: 0 4px 20px rgba(34, 32, 28, 0.08);
            --transition: all 0.3s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--text);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-padding {
            padding: clamp(48px, 7vw, 80px) 0;
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: 999px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 2px solid transparent;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232, 80, 26, 0.25);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-gold {
            background: var(--accent);
            color: var(--ink);
            border-color: var(--accent);
            font-weight: 700;
        }
        .btn-gold:hover {
            background: #f0b32e;
            border-color: #f0b32e;
            color: var(--ink);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 197, 61, 0.3);
        }
        .btn-header {
            padding: 10px 22px;
            font-size: 0.9rem;
        }

        /* ===== Header ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-header);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-top {
            background: #fff;
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 20px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--ink);
            letter-spacing: 1px;
        }
        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0 6px 0 16px;
            flex: 1;
            max-width: 380px;
            margin: 0 auto;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(232, 80, 26, 0.12);
        }
        .header-search input {
            border: none;
            background: transparent;
            outline: none;
            flex: 1;
            padding: 10px 0;
            font-size: 0.9rem;
            color: var(--text);
            min-width: 0;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search button {
            background: var(--primary);
            color: #fff;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .header-search button:hover {
            background: var(--primary-dark);
        }
        .header-nav {
            border-top: 1px solid var(--border);
            background: #fff;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .header-nav::-webkit-scrollbar {
            display: none;
        }
        .channel-nav {
            display: flex;
            gap: 8px;
            padding: 8px 0;
            white-space: nowrap;
            min-height: 48px;
            align-items: center;
        }
        .channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--ink);
            background: transparent;
            transition: var(--transition);
        }
        .channel-link:hover {
            background: var(--primary-light);
            color: var(--primary);
        }
        .channel-link.active {
            background: var(--primary);
            color: #fff;
        }
        .channel-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg) 55%, #fff 100%);
            padding: clamp(40px, 6vw, 72px) 0;
            position: relative;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            right: -120px;
            top: -80px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 80, 26, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero-inner {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            position: relative;
            z-index: 1;
        }
        .category-hero-line {
            width: 4px;
            height: 64px;
            background: var(--primary);
            border-radius: 4px;
            flex-shrink: 0;
            margin-top: 10px;
        }
        .category-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3rem);
            font-weight: 800;
            color: var(--ink);
            line-height: 1.15;
            margin: 0 0 12px 0;
        }
        .category-hero p {
            font-size: 1.05rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 640px;
            line-height: 1.75;
        }

        /* ===== Intro Block ===== */
        .intro-block {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            box-shadow: var(--shadow-card);
        }
        .intro-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            padding: 0 24px;
        }
        .intro-item+.intro-item {
            border-left: 1px solid var(--border);
        }
        .intro-icon {
            width: 46px;
            height: 46px;
            background: var(--primary-light);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        .intro-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 6px 0;
            color: var(--ink);
        }
        .intro-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== Resource Cards ===== */
        .resource-cards {
            background: var(--bg);
        }
        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-heading h2 {
            font-size: clamp(1.4rem, 3vw, 1.9rem);
            font-weight: 700;
            color: var(--ink);
            margin: 0 0 8px 0;
        }
        .section-heading p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
            font-size: 0.95rem;
        }
        .resource-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 80, 26, 0.3);
        }
        .resource-card-img {
            position: relative;
            overflow: hidden;
            height: 180px;
        }
        .resource-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .resource-card:hover .resource-card-img img {
            transform: scale(1.05);
        }
        .resource-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--ink);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }
        .resource-card-body {
            padding: 24px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .resource-card-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .resource-icon {
            width: 34px;
            height: 34px;
            background: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .resource-card-title h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--ink);
            margin: 0;
            line-height: 1.3;
        }
        .resource-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0 0 18px 0;
            line-height: 1.65;
            flex: 1;
        }
        .btn-resource {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            padding: 10px 20px;
            border-radius: 999px;
            border: 1.5px solid var(--primary);
            transition: var(--transition);
            align-self: flex-start;
        }
        .btn-resource:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(232, 80, 26, 0.2);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--surface);
        }
        .faq-section .section-heading {
            margin-bottom: 36px;
        }
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }
        .accordion-item {
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(34, 32, 28, 0.03);
        }
        .accordion-button {
            border: none;
            background: #fff;
            color: var(--ink);
            font-weight: 600;
            font-size: 0.98rem;
            padding: 18px 20px;
            box-shadow: none;
            transition: var(--transition);
        }
        .accordion-button:not(.collapsed) {
            background: var(--primary-light);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button::after {
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            content: "\f067";
            background-image: none;
            color: var(--primary);
            font-size: 0.8rem;
            transition: transform 0.3s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
            background-image: none;
            color: var(--primary);
        }
        .accordion-body {
            padding: 16px 20px 20px;
            border-left: 3px solid var(--primary);
            margin-left: 18px;
            margin-bottom: 8px;
            font-size: 0.93rem;
            color: var(--text-muted);
            line-height: 1.75;
            background: #fff;
            border-radius: 0 8px 8px 0;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: var(--ink);
            padding: clamp(48px, 6vw, 76px) 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 500px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(232, 80, 26, 0.25) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner h2 {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
            line-height: 1.7;
        }
        .cta-banner .btn-gold {
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--ink);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .brand-text {
            color: #fff;
        }
        .footer-brand .brand-logo {
            background: var(--primary);
        }
        .footer-brand p {
            margin-top: 16px;
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-links h4::after,
        .footer-contact h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: var(--primary);
            border-radius: 3px;
        }
        .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 6px;
        }
        .footer-contact p {
            margin: 0 0 10px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .header-search {
                max-width: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }
            .intro-block {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .intro-item {
                padding: 16px 0;
            }
            .intro-item+.intro-item {
                border-left: none;
                border-top: 1px solid var(--border);
            }
            .resource-card-img {
                height: 160px;
            }
        }
        @media (max-width: 768px) {
            .header-top-inner {
                height: auto;
                flex-wrap: wrap;
                padding: 12px 0;
                gap: 12px;
            }
            .header-search {
                order: 3;
                max-width: 100%;
                width: 100%;
                margin: 0;
            }
            .brand-text {
                font-size: 1.1rem;
            }
            .channel-nav {
                padding: 6px 0;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 12px;
            }
            .category-hero-line {
                width: 48px;
                height: 4px;
                margin: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .intro-block {
                gap: 0;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn-header {
                display: none;
            }
            .resource-card-img {
                height: 140px;
            }
            .cta-banner p {
                font-size: 0.9rem;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #E8501A;
  --primary-dark: #C23C11;
  --primary-light: #FDE9DE;
  --accent: #FFC53D;
  --ink: #22201C;
  --bg: #F8F4EF;
  --surface: #FFFFFF;
  --text: #26221E;
  --text-muted: #6B635A;
  --border: #E7DED3;
  --border-dark: #D8CCBE;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(34,32,28,0.06);
  --shadow-md: 0 10px 30px rgba(34,32,28,0.07);
  --shadow-hover: 0 18px 40px rgba(232,80,26,0.12);
  --header-shadow: 0 4px 20px rgba(34,32,28,0.08);
  --transition: all 0.25s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary); }
.container { max-width: 1200px; }

/* ========== 通用按钮 ========== */
.btn {
  border-radius: 999px;
  font-weight: 600;
  padding: 12px 28px;
  border: none;
  transition: var(--transition);
  font-size: 1rem;
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(232,80,26,0.15);
}
.btn-primary {
  background: var(--primary);
  color: #fff !important;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232,80,26,0.3);
  color: #fff !important;
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-outline-primary {
  background: transparent;
  color: var(--primary) !important;
  border: 2px solid var(--primary);
}
.btn-outline-primary:hover {
  background: var(--primary-light);
  color: var(--primary-dark) !important;
  transform: translateY(-2px);
}
.btn-gold {
  background: var(--accent);
  color: var(--ink) !important;
  font-weight: 700;
}
.btn-gold:hover {
  background: #FFD870;
  color: var(--ink) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,197,61,0.3);
}
.btn-lg { padding: 14px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ========== 顶部站点页头 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  box-shadow: var(--header-shadow);
}
.header-top { border-bottom: 1px solid var(--border); }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand:hover .brand-text { color: var(--primary); }
.header-search {
  flex: 1;
  max-width: 380px;
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 4px 4px 16px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(232,80,26,0.12);
  background: #fff;
}
.header-search input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.9rem;
  color: var(--text);
  padding: 6px 0;
  min-width: 0;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.header-search button:hover { background: var(--primary-dark); }
.btn-header {
  padding: 10px 24px;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.header-nav { background: #fff; border-bottom: 1px solid var(--border); }
.channel-nav {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 8px 0 10px;
  white-space: nowrap;
}
.channel-nav::-webkit-scrollbar { display: none; }
.channel-link {
  flex-shrink: 0;
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  transition: var(--transition);
}
.channel-link:hover { color: var(--primary); background: var(--primary-light); }
.channel-link.active { background: var(--primary); color: #fff !important; }

/* ========== 页面头部 Hero ========== */
.page-hero {
  position: relative;
  padding: clamp(48px, 7vw, 80px) 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(248,244,239,0.96) 10%, rgba(248,244,239,0.78) 50%, rgba(248,244,239,0.45) 100%);
}
.page-hero-inner {
  position: relative;
  max-width: 720px;
}
.hero-bar {
  display: block;
  width: 5px;
  height: 80px;
  background: var(--primary);
  border-radius: 999px;
  margin-bottom: 24px;
}
.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--ink);
}
.page-hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 30px;
  max-width: 620px;
}
.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-quick-list {
  margin-top: 32px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  list-style: none;
  padding: 0;
}
.hero-quick-list li {
  font-size: 0.95rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-quick-list li i {
  color: var(--primary);
  font-size: 0.9rem;
}

/* ========== 通用 section 标题 ========== */
.section-padding { padding: clamp(48px, 7vw, 80px) 0; }
.section-heading { margin-bottom: 44px; }
.section-heading.text-center { text-align: center; }
.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.section-tag-light {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.section-heading h2 {
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
  margin-bottom: 12px;
}
.section-heading p {
  color: var(--text-muted);
  max-width: 640px;
  margin-bottom: 0;
}
.text-center .section-heading p { margin-left: auto; margin-right: auto; }

/* ========== 合作流程 ========== */
.process-section {
  background: var(--primary-light);
  padding: clamp(48px, 7vw, 80px) 0;
  position: relative;
}
.step-col { position: relative; }
@media (min-width: 992px) {
  .step-col:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 92px;
    right: -14px;
    width: 32px;
    height: 2px;
    border-top: 2px dashed rgba(232,80,26,0.45);
  }
}
.process-step {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 32px 24px 28px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  height: 100%;
  transition: var(--transition);
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(232,80,26,0.3);
}
.step-circle {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--primary);
  margin: 0 auto 20px;
  position: relative;
}
.step-circle i { position: relative; z-index: 1; }
.step-number {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 0 0 3px #fff;
}
.process-step h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}
.process-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.65;
}

/* ========== 合作优势 ========== */
.advantage-section {
  background: var(--surface);
  padding: clamp(48px, 7vw, 80px) 0;
}
.advantage-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
  height: 100%;
  min-height: 340px;
  object-fit: cover;
}
.advantage-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 28px;
}
.advantage-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: var(--transition);
}
.advantage-item:hover {
  border-color: rgba(232,80,26,0.3);
  box-shadow: var(--shadow-sm);
  background: #fff;
}
.advantage-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.advantage-info h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}
.advantage-info p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.65;
}

/* ========== 方案对比 ========== */
.compare-section {
  background: var(--bg);
  padding: clamp(48px, 7vw, 80px) 0;
}
.compare-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.compare-card .table {
  margin-bottom: 0;
}
.compare-table {
  border-collapse: collapse;
  width: 100%;
}
.compare-table th,
.compare-table td {
  padding: 18px 24px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
}
.compare-table thead th {
  background: var(--primary-light);
  color: var(--ink);
  font-weight: 700;
  font-size: 1rem;
  border-bottom: 2px solid transparent;
}
.compare-table thead th:first-child {
  width: 24%;
}
.compare-table tbody td:first-child {
  font-weight: 600;
  color: var(--ink);
  background: var(--bg);
}
.compare-table tbody tr {
  transition: var(--transition);
}
.compare-table tbody tr:hover td {
  background: #FDF1E8;
}
.compare-table tbody td:last-child {
  color: var(--primary-dark);
  font-weight: 500;
}
.compare-table .highlight-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  margin-left: 6px;
  vertical-align: middle;
}

/* ========== FAQ ========== */
.faq-section {
  background: var(--surface);
  padding: clamp(48px, 7vw, 80px) 0;
}
.custom-accordion {
  --bs-accordion-border-color: var(--border);
  --bs-accordion-border-radius: var(--radius-md);
  --bs-accordion-bg: #fff;
  --bs-accordion-btn-focus-box-shadow: 0 0 0 4px rgba(232,80,26,0.12);
}
.faq-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.accordion-header { margin: 0; }
.faq-card .accordion-button {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  background: #fff;
  color: var(--text);
  box-shadow: none !important;
  border: none;
  border-radius: var(--radius-md) !important;
}
.faq-card .accordion-button:not(.collapsed) {
  background: var(--primary-light);
  color: var(--primary);
}
.faq-card .accordion-button::after {
  background: none;
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  content: "\2b";
  color: var(--primary);
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: transparent;
  transition: transform 0.25s ease;
}
.faq-card .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  content: "\2b";
}
.faq-card .accordion-body {
  padding: 8px 28px 24px;
  border-left: 3px solid var(--primary);
  margin-left: 28px;
  margin-bottom: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

/* ========== 合作申请表单 ========== */
.contact-section {
  background: var(--ink);
  padding: clamp(48px, 7vw, 80px) 0;
  position: relative;
  overflow: hidden;
}
.contact-section::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -100px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232,80,26,0.35), transparent 70%);
}
.contact-section::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,197,61,0.15), transparent 70%);
}
.contact-section .container { position: relative; z-index: 2; }
.contact-info h2 {
  color: #fff;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.contact-info p {
  color: rgba(255,255,255,0.72);
  font-size: 1rem;
  margin-bottom: 24px;
}
.contact-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-info ul li {
  color: rgba(255,255,255,0.85);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.contact-info ul li i {
  color: var(--accent);
  font-size: 0.9rem;
}
.contact-form {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.22);
}
.contact-form .form-label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text);
}
.contact-form .form-control {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
}
.contact-form .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(232,80,26,0.14);
  outline: none;
  background: #fff;
}
.contact-form .form-control::placeholder {
  color: #B7AFA6;
}
.form-text { color: var(--text-muted); font-size: 0.82rem; }

/* ========== 页脚 ========== */
.site-footer {
  background: var(--ink);
  padding: 60px 0 0;
  color: rgba(255,255,255,0.72);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand .brand-text { color: #fff; }
.footer-brand p {
  margin-top: 16px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.footer-links a {
  color: rgba(255,255,255,0.62);
  font-size: 0.9rem;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--accent); }
.footer-contact h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.footer-contact p {
  margin-bottom: 10px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i { color: var(--accent); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 18px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ========== 响应式 ========== */
@media (max-width: 991.98px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .contact-form { padding: 30px; }
  .advantage-img { min-height: 260px; margin-top: 24px; }
}
@media (max-width: 767.98px) {
  .header-search { display: none; }
  .page-hero { padding: 44px 0; }
  .page-hero-actions .btn { width: 100%; }
  .hero-quick-list { flex-direction: column; gap: 10px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-form { padding: 24px 20px; }
  .compare-table th, .compare-table td { padding: 14px 16px; font-size: 0.88rem; }
}
@media (max-width: 575.98px) {
  .btn-header { padding: 8px 16px; font-size: 0.85rem; }
  .brand-text { font-size: 1.05rem; }
  .page-hero h1 { font-size: 1.8rem; }
  .page-hero p { font-size: 0.98rem; }
  .section-heading h2 { font-size: 1.3rem; }
  .contact-form { padding: 20px 16px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* 禁止横向滚动 */
html, body { max-width: 100%; overflow-x: hidden; }