/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #D98E3F;
            --primary-dark: #B9712D;
            --primary-soft: rgba(217, 142, 63, 0.1);
            --success: #3D9970;
            --success-soft: rgba(61, 153, 112, 0.12);
            --alert: #C4573A;
            --alert-soft: rgba(196, 87, 58, 0.12);
            --dark-bg: #10151A;
            --dark-soft: #171E26;
            --deep-dark: #0B0E11;
            --light-bg: #F5F1EC;
            --white: #FFFFFF;
            --text-main: #20282E;
            --text-muted: #6E777D;
            --border-light: rgba(0, 0, 0, 0.12);
            --border-dark: rgba(255, 255, 255, 0.14);
            --radius-lg: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 16px 40px rgba(0, 0, 0, 0.14);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.08);
            --transition: all 0.2s ease;
        }

        /* ===== 基础重置 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Heiti SC", "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background: var(--white);
            line-height: 1.7;
            font-size: 1rem;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

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

        .container {
            max-width: 1200px;
        }

        /* ===== 通用区块样式 ===== */
        section {
            padding: clamp(64px, 8vw, 104px) 0;
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 720px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-head.left {
            margin-left: 0;
            margin-right: auto;
            text-align: left;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-radius: 999px;
            padding: 4px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .section-head p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .section-head.light h2 {
            color: #fff;
        }

        .section-head.light p {
            color: rgba(255, 255, 255, 0.65);
        }

        .section-head.light .section-tag {
            background: rgba(217, 142, 63, 0.16);
            color: var(--primary);
        }

        /* ===== 按钮 ===== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border: 1px solid var(--primary);
            color: #1a1a1a;
            font-weight: 600;
            font-size: 1rem;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(217, 142, 63, 0.35);
        }

        .btn-primary-custom:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(217, 142, 63, 0.35);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.4);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(217, 142, 63, 0.1);
        }

        .btn-outline-custom:focus-visible {
            outline: none;
            box-shadow: 0 0 0 4px rgba(217, 142, 63, 0.25);
        }

        /* ===== Header 杂志刊头 ===== */
        .site-header {
            background: rgba(245, 241, 236, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: 0;
            z-index: 1030;
            transition: var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .brand-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: -0.01em;
            line-height: 1.1;
            white-space: nowrap;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .brand-logo .brand-sub {
            color: var(--primary-dark);
            font-size: 1.1rem;
            font-weight: 700;
        }

        .brand-logo:hover {
            color: var(--text-main);
            text-decoration: none;
        }

        .channel-nav {
            display: flex;
            align-items: center;
            gap: 0;
            height: 100%;
        }

        .channel-nav .channel-link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 14px;
            position: relative;
            transition: var(--transition);
        }

        .channel-nav .channel-link:hover {
            color: var(--primary-dark);
        }

        .channel-nav .channel-link.active {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .channel-nav .channel-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .channel-sep {
            width: 1px;
            height: 16px;
            background: rgba(0, 0, 0, 0.18);
            display: inline-block;
            margin: 0 6px;
        }

        .hamburger-btn {
            display: inline-flex;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            padding: 8px;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .hamburger-btn:hover {
            border-color: var(--primary);
        }

        .hamburger-btn span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: var(--transition);
        }

        .mobile-nav {
            background: rgba(245, 241, 236, 0.98);
            border-top: 1px solid var(--border-light);
            padding: 16px 24px 24px;
        }

        .mobile-nav-link {
            display: block;
            padding: 12px 0;
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text-main);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: var(--transition);
        }

        .mobile-nav-link:last-child {
            border-bottom: none;
        }

        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: var(--primary-dark);
            padding-left: 8px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            background: var(--dark-bg);
            padding: 0;
            overflow: hidden;
            border-bottom: 1px solid var(--border-dark);
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(16, 21, 26, 0.94) 40%, rgba(16, 21, 26, 0.72) 75%, rgba(16, 21, 26, 0.6));
            z-index: 1;
        }

        .hero-row {
            position: relative;
            z-index: 2;
            min-height: 480px;
            padding: 72px 0;
            align-items: center;
        }

        .hero-tag {
            display: inline-block;
            background: rgba(217, 142, 63, 0.18);
            color: var(--primary);
            border-radius: 999px;
            padding: 5px 16px;
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
            border: 1px solid rgba(217, 142, 63, 0.3);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.15;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 540px;
        }

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

        /* Hero 数据面板 */
        .hero-data-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-lg);
            padding: 24px 28px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            box-shadow: var(--shadow-card);
            max-width: 400px;
            margin-left: auto;
        }

        .card-head {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--success);
            border-radius: 50%;
            display: inline-block;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(61, 153, 112, 0.5);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(61, 153, 112, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(61, 153, 112, 0);
            }
        }

        .region-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        .card-badge {
            margin-left: auto;
            background: rgba(217, 142, 63, 0.2);
            color: var(--primary);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(217, 142, 63, 0.3);
        }

        .data-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 16px;
            margin-bottom: 20px;
        }

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

        .data-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.4;
        }

        .data-label {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 4px;
        }

        .status-list {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 14px;
        }

        .status-line {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.65);
            padding: 6px 0;
        }

        .status-line .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .status-line .dot.green {
            background: var(--success);
        }

        .status-line .dot.amber {
            background: var(--primary);
        }

        /* ===== 服务板块 ===== */
        .services-section {
            background: var(--light-bg);
            border-bottom: 1px solid var(--border-light);
        }

        .service-list {
            margin-bottom: 28px;
        }

        .service-row {
            display: flex;
            align-items: center;
            padding: 18px 12px;
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
            gap: 18px;
            flex-wrap: nowrap;
            border-radius: 8px;
            margin: 0 -12px;
        }

        .service-row:last-child {
            border-bottom: none;
        }

        .service-row:hover {
            background: rgba(217, 142, 63, 0.08);
            padding-left: 18px;
            padding-right: 18px;
        }

        .row-num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--primary);
            width: 44px;
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
        }

        .row-thumb {
            width: 76px;
            height: 56px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .row-thumb.placeholder-thumb {
            background: var(--primary-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-dark);
        }

        .row-content {
            flex: 1;
            min-width: 0;
        }

        .row-content h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--text-main);
        }

        .row-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .row-link {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            flex-shrink: 0;
            transition: var(--transition);
        }

        .service-row:hover .row-link {
            color: var(--primary);
            transform: translateX(4px);
        }

        .row-link svg {
            width: 16px;
            height: 16px;
        }

        .quick-entry {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
        }

        .quick-entry span {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .tag-chip {
            display: inline-block;
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 999px;
            padding: 6px 16px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-main);
            transition: var(--transition);
        }

        .tag-chip:hover {
            background: var(--primary-soft);
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        /* ===== 优势数据 ===== */
        .stats-section {
            background: var(--dark-bg);
            border-bottom: 1px solid var(--border-dark);
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            height: 100%;
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .stat-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: rgba(217, 142, 63, 0.16);
            color: var(--primary);
            border-radius: 999px;
            padding: 3px 12px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 6px;
            font-variant-numeric: tabular-nums;
        }

        .stat-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 8px;
        }

        .stat-desc {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.6;
            margin-bottom: 18px;
        }

        .stat-bar {
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 2px;
            overflow: hidden;
        }

        .stat-bar span {
            display: block;
            height: 100%;
            background: linear-gradient(90deg, var(--primary), #f0b06a);
            border-radius: 2px;
        }

        /* ===== 案例板块 ===== */
        .cases-section {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
        }

        .case-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            margin-bottom: 16px;
            transition: var(--transition);
            background: #fff;
            flex-wrap: wrap;
        }

        .case-row:hover {
            box-shadow: var(--shadow-sm);
            border-color: rgba(217, 142, 63, 0.4);
            background: rgba(217, 142, 63, 0.02);
        }

        .case-left {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            flex: 1;
            min-width: 260px;
        }

        .status-badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .status-badge.verified {
            background: var(--success-soft);
            color: var(--success);
        }

        .status-badge.pending {
            background: var(--alert-soft);
            color: var(--alert);
        }

        .case-info h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .case-info p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.65;
        }

        .case-right {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        .case-tag {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-radius: 6px;
            padding: 4px 10px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }

        /* ===== 方案流程 ===== */
        .steps-section {
            background: var(--dark-bg);
            border-bottom: 1px solid var(--border-dark);
        }

        .steps-band {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 36px;
        }

        .step-item {
            position: relative;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-4px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(217, 142, 63, 0.2);
            color: var(--primary);
            border-radius: 50%;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
        }

        .step-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
            line-height: 1.6;
        }

        .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            width: 24px;
            height: 24px;
            color: rgba(255, 255, 255, 0.3);
            transform: translateY(-50%);
            z-index: 2;
            pointer-events: none;
        }

        .apply-note {
            background: rgba(217, 142, 63, 0.1);
            border: 1px solid rgba(217, 142, 63, 0.2);
            border-radius: var(--radius-lg);
            padding: 20px 28px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            line-height: 1.7;
            text-align: center;
        }

        .apply-note strong {
            color: var(--primary);
            font-weight: 700;
        }

        /* ===== 资讯板块 ===== */
        .news-section {
            background: var(--light-bg);
            border-bottom: 1px solid var(--border-light);
        }

        .news-list {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 8px 24px;
            box-shadow: var(--shadow-sm);
        }

        .news-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 0;
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            transition: var(--transition);
        }

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

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            flex-shrink: 0;
            font-variant-numeric: tabular-nums;
            background: var(--light-bg);
            padding: 2px 8px;
            border-radius: 4px;
        }

        .news-title {
            flex: 1;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-main);
            line-height: 1.5;
        }

        .news-title:hover {
            color: var(--primary-dark);
        }

        .news-badge {
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 0.7rem;
            font-weight: 600;
            flex-shrink: 0;
        }

        .news-sidebar {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .news-sidebar h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        .side-card {
            background: var(--dark-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
        }

        .side-card img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            display: block;
        }

        .side-card-body {
            padding: 18px;
            color: #fff;
        }

        .side-card-tag {
            display: inline-block;
            background: rgba(217, 142, 63, 0.2);
            color: var(--primary);
            border-radius: 999px;
            padding: 2px 10px;
            font-size: 0.7rem;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .side-card-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .side-card-body p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 12px;
        }

        .side-card-body a {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
        }

        .side-card-body a:hover {
            text-decoration: underline;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--white);
            border-bottom: 1px solid var(--border-light);
        }

        .custom-accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: none !important;
            transition: var(--transition);
        }

        .custom-accordion .accordion-item:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(217, 142, 63, 0.12) !important;
        }

        .custom-accordion .accordion-button {
            padding: 20px 24px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            box-shadow: none;
            transition: var(--transition);
            border-radius: var(--radius-lg) !important;
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .custom-accordion .accordion-button::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23B9712D'%3E%3Cpath fill-rule='evenodd' d='M8 1a.5.5 0 0 1 .5.5v6h6a.5.5 0 0 1 0 1h-6v6a.5.5 0 1 1-1 0v-6h-6a.5.5 0 0 1 0-1h6v-6A.5.5 0 0 1 8 1z'/%3E%3C/svg%3E");
            background-size: 14px 14px;
            transition: var(--transition);
        }

        .custom-accordion .accordion-button:not(.collapsed) {
            color: var(--primary-dark);
            background: rgba(217, 142, 63, 0.06);
        }

        .custom-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .custom-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }

        .custom-accordion .accordion-button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
        }

        .qa-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary-soft);
            color: var(--primary-dark);
            border-radius: 50%;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
        }

        .custom-accordion .accordion-body {
            padding: 6px 24px 24px 70px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== 联系板块 ===== */
        .contact-section {
            background: var(--dark-bg);
            border-bottom: 1px solid var(--border-dark);
        }

        .contact-section .section-head h2 {
            color: #fff;
        }

        .contact-section .section-head p {
            color: rgba(255, 255, 255, 0.65);
        }

        .contact-info {
            margin-top: 24px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            margin-bottom: 18px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
        }

        .contact-info-item svg {
            width: 20px;
            height: 20px;
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .contact-form {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .contact-form .form-control {
            height: 44px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-sm);
            padding: 0 14px;
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .contact-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .contact-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(217, 142, 63, 0.15);
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }

        .contact-form textarea.form-control {
            height: auto;
            padding: 14px;
            resize: vertical;
            min-height: 110px;
        }

        .contact-form .btn-primary-custom {
            margin-top: 4px;
            width: 100%;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--deep-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 56px 0 28px;
            font-size: 0.9rem;
        }

        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary);
            display: inline-block;
            margin-bottom: 12px;
        }

        .footer-brand:hover {
            color: var(--primary);
            text-decoration: none;
        }

        .site-footer p {
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
            margin-bottom: 8px;
        }

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

        .site-footer .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            padding: 4px 0;
            transition: var(--transition);
        }

        .site-footer .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 40px;
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.8rem;
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== 区块分隔线 ===== */
        .divider-line {
            width: 100%;
            height: 1px;
            background: var(--border-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .hero-row {
                min-height: auto;
                padding: 48px 0;
            }

            .hero-data-card {
                margin-left: 0;
                margin-top: 32px;
                max-width: 100%;
            }

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

            .step-arrow {
                display: none;
            }

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

        @media (max-width: 767.98px) {
            .brand-logo {
                font-size: 1.2rem;
            }

            .brand-logo .brand-sub {
                font-size: 0.95rem;
            }

            .service-row {
                flex-wrap: wrap;
                gap: 10px;
            }

            .row-thumb {
                width: 56px;
                height: 44px;
            }

            .row-num {
                width: 32px;
                font-size: 1.1rem;
            }

            .row-content h3 {
                font-size: 1.05rem;
            }

            .stat-num {
                font-size: 2rem;
            }

            .custom-accordion .accordion-body {
                padding: 4px 20px 20px 20px;
            }

            .custom-accordion .accordion-button {
                padding: 18px 20px;
            }

            .case-row {
                flex-direction: column;
                align-items: flex-start;
            }

            .case-right {
                width: 100%;
            }
        }

        @media (max-width: 575.98px) {
            .contact-form {
                padding: 24px 20px;
            }

            .footer-bottom {
                align-items: flex-start;
                text-align: left;
            }

            .stats-section .row {
                --bs-gutter-y: 16px;
            }
        }

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

            .data-grid {
                grid-template-columns: 1fr 1fr;
            }

            .data-num {
                font-size: 1.5rem;
            }

            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                width: 100%;
            }
        }