/* roulang page: index */
:root {
            --primary: #1d4ed8;
            --primary-dark: #1e3a8a;
            --primary-light: #eff6ff;
            --accent: #0284c7;
            --accent-warm: #d97706;
            --text-dark: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --bg-page: #fdfefe;
            --bg-alt: #f8fafc;
            --bg-card: #ffffff;
            --border-light: #e2e8f0;
            --border-dark: #0f172a;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 14px;
            --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
            --shadow-md: 0 4px 14px -2px rgba(15, 23, 42, 0.08);
            --shadow-lg: 0 12px 28px -6px rgba(15, 23, 42, 0.12);
            --font-serif: "Songti SC", "SimSun", "STSong", "Noto Serif CJK SC", serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-body);
            background-color: var(--bg-page);
            line-height: 1.65;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, opacity 0.2s ease;
        }

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

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 杂志刊头导航 Magazine Masthead Header */
        .masthead-header {
            background-color: #ffffff;
            border-bottom: 1px solid var(--border-light);
            position: relative;
            z-index: 50;
        }

        .masthead-topbar {
            border-bottom: 1px solid var(--border-light);
            padding: 8px 0;
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .masthead-topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .masthead-main {
            padding: 24px 0 20px;
            text-align: center;
            border-bottom: 2px solid var(--border-dark);
        }

        .brand-logo-title {
            font-family: var(--font-serif);
            font-size: 46px;
            font-weight: 900;
            letter-spacing: 2px;
            color: var(--text-dark);
            line-height: 1.1;
            margin-bottom: 6px;
            display: inline-block;
        }

        .masthead-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 3px;
            text-transform: uppercase;
            font-weight: 500;
        }

        .masthead-nav-bar {
            background-color: #ffffff;
            border-bottom: 1px solid var(--border-dark);
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
        }

        .masthead-nav-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 52px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
        }

        .nav-link-item {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-dark);
            padding: 6px 12px;
            position: relative;
        }

        .nav-link-item.active {
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-sm);
        }

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

        .nav-editorial-status {
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-warm);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background-color: #10b981;
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
        }

        /* Hero Section - 斜切与问答线索获客首屏 */
        .hero-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
            color: #ffffff;
            position: relative;
            padding: 72px 0 100px;
            clip-path: polygon(0 0, 100% 0, 100% calc(100% - 38px), 0 100%);
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 48px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: #93c5fd;
            margin-bottom: 20px;
        }

        .hero-headline {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            color: #ffffff;
        }

        .hero-headline span {
            color: #60a5fa;
            border-bottom: 2px dashed rgba(96, 165, 250, 0.6);
        }

        .hero-question-hook {
            font-size: 20px;
            color: #bfdbfe;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.75;
            color: #e2e8f0;
            margin-bottom: 30px;
            max-width: 620px;
        }

        .hero-data-strip {
            display: flex;
            gap: 28px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .hero-data-item h4 {
            font-size: 26px;
            font-weight: 700;
            color: #ffffff;
            font-family: var(--font-serif);
        }

        .hero-data-item p {
            font-size: 13px;
            color: #94a3b8;
        }

        /* Hero 获客表单卡片 */
        .hero-inquiry-box {
            background: #ffffff;
            color: var(--text-dark);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .inquiry-box-header {
            margin-bottom: 20px;
        }

        .inquiry-box-header h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .inquiry-box-header p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 11px 14px;
            border: 1.5px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: #f8fafc;
            color: var(--text-dark);
            outline: none;
            transition: all 0.2s ease;
        }

        .form-control:focus {
            border-color: var(--primary);
            background: #ffffff;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .form-actions {
            margin-top: 22px;
        }

        .btn-strong {
            width: 100%;
            background: linear-gradient(135deg, #1d4ed8 0%, #2563eb 100%);
            color: #ffffff;
            font-weight: 700;
            font-size: 15px;
            padding: 13px 20px;
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
            transition: all 0.2s ease;
            text-align: center;
            display: inline-block;
        }

        .btn-strong:hover {
            background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.45);
        }

        .inquiry-security-note {
            margin-top: 12px;
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* 统一 Section 基础样式 */
        .section-block {
            padding: 68px 0;
            position: relative;
        }

        .section-block.bg-alt {
            background-color: var(--bg-alt);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .section-header {
            margin-bottom: 42px;
        }

        .section-header.text-center {
            text-align: center;
            max-width: 780px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            background: var(--primary-light);
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            line-height: 1.35;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

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

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

        /* Card Styles */
        .info-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: #cbd5e1;
        }

        .card-stamp {
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            background: #eff6ff;
            border: 1px solid #bfdbfe;
            padding: 2px 8px;
            border-radius: 3px;
            width: fit-content;
            margin-bottom: 14px;
        }

        .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-text {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.65;
            margin-bottom: 16px;
        }

        .card-meta {
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px dashed var(--border-light);
            padding-top: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 排行榜专用样式 */
        .rank-list-wrapper {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .rank-item {
            display: grid;
            grid-template-columns: 56px 1fr 140px 100px;
            align-items: center;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: background-color 0.2s ease;
        }

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

        .rank-item:hover {
            background-color: #f8fafc;
        }

        .rank-number {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 800;
            color: var(--text-muted);
        }

        .rank-number.top-1 { color: #dc2626; }
        .rank-number.top-2 { color: #ea580c; }
        .rank-number.top-3 { color: #d97706; }

        .rank-subject h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 4px;
        }

        .rank-subject p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .rank-heat {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
        }

        .status-badge {
            display: inline-block;
            font-size: 12px;
            padding: 4px 8px;
            border-radius: 4px;
            text-align: center;
            font-weight: 600;
        }

        .status-verifying { background: #fef3c7; color: #92400e; }
        .status-confirmed { background: #fee2e2; color: #991b1b; }
        .status-resolved { background: #dcfce7; color: #166534; }

        /* 保障网格 */
        .assurance-box {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-top: 3px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 24px 20px;
        }

        .assurance-box h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
        }

        .assurance-box p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 流程步骤 */
        .step-rail {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }

        .step-node {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
        }

        .step-number-tag {
            font-family: var(--font-serif);
            font-size: 24px;
            font-weight: 900;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-node h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .step-node p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 图文交替技术勘验 Band */
        .tech-band-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 40px;
            background: #ffffff;
            padding: 32px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
        }

        .tech-band-item:nth-child(even) {
            grid-template-columns: 1fr 1fr;
            direction: rtl;
        }

        .tech-band-item:nth-child(even) .tech-band-content {
            direction: ltr;
        }

        .tech-band-item:last-child {
            margin-bottom: 0;
        }

        .tech-band-content h4 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 12px;
        }

        .tech-band-content p {
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .tech-features-list {
            list-style: none;
            font-size: 14px;
            color: var(--text-muted);
        }

        .tech-features-list li {
            position: relative;
            padding-left: 18px;
            margin-bottom: 6px;
        }

        .tech-features-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--primary);
            font-weight: bold;
        }

        .tech-band-visual {
            background: var(--bg-alt);
            border: 1.5px dashed #cbd5e1;
            border-radius: var(--radius-md);
            padding: 30px;
            text-align: center;
        }

        .tech-band-visual h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .tech-band-visual p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 时间线里程碑 */
        .timeline-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .timeline-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px;
            border-top: 3px solid var(--text-dark);
        }

        .timeline-year {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .timeline-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }

        .timeline-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 标签与专题 */
        .topic-pill-container {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            margin-top: 24px;
        }

        .topic-pill {
            background: #ffffff;
            border: 1px solid var(--border-light);
            padding: 10px 18px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            transition: all 0.2s ease;
            box-shadow: var(--shadow-sm);
        }

        .topic-pill:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 资讯文章列表 */
        .news-article-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: border-color 0.2s ease;
        }

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

        .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 8px;
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 维权工具库 */
        .tool-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .tool-icon {
            width: 44px;
            height: 44px;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 900;
            font-size: 18px;
            flex-shrink: 0;
        }

        .tool-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

        .tool-body p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 12px;
        }

        .tool-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* 收口转化行动区 */
        .closing-cta-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
            color: #ffffff;
            padding: 80px 0;
        }

        .cta-content-wrapper {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }

        .cta-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            color: #93c5fd;
            background: rgba(255, 255, 255, 0.1);
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 16px;
        }

        .cta-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.35;
            margin-bottom: 18px;
            color: #ffffff;
        }

        .cta-desc {
            font-size: 16px;
            color: #cbd5e1;
            line-height: 1.7;
            margin-bottom: 36px;
        }

        .cta-form-row {
            display: flex;
            gap: 12px;
            max-width: 600px;
            margin: 0 auto 20px;
        }

        .cta-input {
            flex: 1;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.3);
            background: rgba(255, 255, 255, 0.95);
            font-size: 15px;
            outline: none;
            color: var(--text-dark);
        }

        .cta-button {
            background: #2563eb;
            color: #ffffff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-weight: 700;
            font-size: 15px;
            cursor: pointer;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .cta-button:hover {
            background: #1d4ed8;
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.5);
        }

        .cta-privacy-tips {
            font-size: 13px;
            color: #94a3b8;
        }

        /* 页脚统一规范 Footer */
        .site-footer {
            background-color: #0b1120;
            color: #94a3b8;
            padding: 60px 0 30px;
            border-top: 1px solid #1e293b;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand h3 {
            font-family: var(--font-serif);
            font-size: 26px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            line-height: 1.7;
            color: #94a3b8;
            margin-bottom: 18px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-links {
            list-style: none;
        }

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

        .footer-links a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            padding-top: 24px;
            border-top: 1px solid #1e293b;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #64748b;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-rail {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-container {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            .brand-logo-title {
                font-size: 36px;
            }
            .hero-headline {
                font-size: 28px;
            }
            .grid-3, .grid-2 {
                grid-template-columns: 1fr;
            }
            .tech-band-item, .tech-band-item:nth-child(even) {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .rank-item {
                grid-template-columns: 40px 1fr;
                gap: 8px;
            }
            .rank-heat, .status-badge {
                grid-column: 2 / 3;
            }
            .cta-form-row {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .step-rail, .timeline-container, .grid-4 {
                grid-template-columns: 1fr;
            }
            .hero-data-strip {
                flex-direction: column;
                gap: 14px;
            }
            .section-title {
                font-size: 24px;
            }
        }