/* roulang page: index */
:root {
            --primary: #0D2F28;
            --primary-light: #164e43;
            --accent: #C5A880;
            --accent-hover: #b3956d;
            --bg-warm: #F9F9F8;
            --bg-white: #FFFFFF;
            --bg-dark: #0A1C18;
            --text-main: #111827;
            --text-body: #374151;
            --text-muted: #6B7280;
            --border-light: rgba(0, 0, 0, 0.08);
            --border-dark: rgba(255, 255, 255, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-subtle: 0 4px 20px -2px rgba(0, 0, 0, 0.05);
            --shadow-elevated: 0 12px 32px -4px rgba(13, 47, 40, 0.12);
            --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-main);
            color: var(--text-body);
            background-color: var(--bg-warm);
        }

        body {
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .font-num {
            font-variant-numeric: tabular-nums;
            font-feature-settings: "tnum";
        }

        /* 顶部通栏提示 */
        .top-bar {
            background: var(--bg-dark);
            color: #d1d5db;
            font-size: 13px;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .top-bar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 主导航 */
        .header-nav {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            transition: all 0.3s ease;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: var(--primary);
            letter-spacing: -0.5px;
        }
        .brand-logo-badge {
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            font-weight: 700;
        }
        .nav-links {
            display: flex;
            gap: 28px;
            align-items: center;
        }
        .nav-links a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
        }
        .nav-links a:hover {
            color: var(--primary);
        }
        .btn-nav {
            background: var(--primary);
            color: #ffffff;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            border: 1px solid var(--primary);
        }
        .btn-nav:hover {
            background: var(--primary-light);
            box-shadow: var(--shadow-subtle);
        }

        /* 基础 Section 规范 */
        section {
            padding: 100px 0;
            position: relative;
        }
        .section-header {
            margin-bottom: 56px;
        }
        .section-header.text-center {
            text-align: center;
            max-width: 820px;
            margin-left: auto;
            margin-right: auto;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--accent);
            background: rgba(197, 168, 128, 0.12);
            padding: 4px 14px;
            border-radius: 50px;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 按钮与组件 */
        .btn-gold {
            background: var(--accent);
            color: #111827;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 16px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-gold:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(197, 168, 128, 0.35);
        }
        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 16px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.25s ease;
        }
        .btn-outline-light:hover {
            border-color: #ffffff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* 板块 1: Hero 全宽视频/舞台遮罩首屏 */
        .hero-banner {
            position: relative;
            min-height: 740px;
            display: flex;
            align-items: center;
            background-color: var(--bg-dark);
            background-image: linear-gradient(135deg, rgba(10, 28, 24, 0.88) 0%, rgba(13, 47, 40, 0.92) 100%), url('/assets/images/296ca195c27f2139.webp');
            background-size: cover;
            background-position: center;
            color: #ffffff;
            padding: 100px 0;
        }
        .hero-content {
            max-width: 840px;
        }
        .hero-title {
            font-size: 54px;
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 24px;
            letter-spacing: -1px;
            color: #ffffff;
        }
        .hero-desc {
            font-size: 18px;
            line-height: 1.75;
            color: #e5e7eb;
            margin-bottom: 38px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }
        .hero-video-trigger {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            color: #ffffff;
            font-weight: 600;
            cursor: pointer;
            padding: 12px 20px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .hero-video-trigger:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .play-icon-box {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 14px;
        }

        /* 板块 2: 适用人群 */
        .section-audience {
            background: var(--bg-warm);
        }
        .audience-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .audience-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
            transition: transform 0.25s ease;
        }
        .audience-card:hover {
            transform: translateY(-4px);
        }
        .audience-role {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .audience-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
        }
        .audience-desc {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 3: 谁适合/谁不适合 */
        .section-fit-check {
            background: #ffffff;
        }
        .fit-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .fit-box {
            border-radius: var(--radius-md);
            padding: 40px;
            border: 1px solid var(--border-light);
        }
        .fit-box.suitable {
            background: #F4F8F6;
            border-color: rgba(13, 47, 40, 0.15);
        }
        .fit-box.unsuitable {
            background: #FCF8F7;
            border-color: rgba(220, 38, 38, 0.12);
        }
        .fit-box h3 {
            font-size: 22px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .fit-box.suitable h3 { color: var(--primary); }
        .fit-box.unsuitable h3 { color: #991B1B; }
        .fit-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .fit-list li {
            font-size: 15px;
            line-height: 1.6;
            display: flex;
            align-items: flex-start;
            gap: 12px;
        }
        .fit-badge {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            margin-top: 2px;
            font-weight: 800;
        }
        .suitable .fit-badge { background: #0D2F28; color: #fff; }
        .unsuitable .fit-badge { background: #DC2626; color: #fff; }

        /* 板块 4: 匹配方案 */
        .section-plans {
            background: var(--bg-warm);
        }
        .plans-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            align-items: stretch;
        }
        .plan-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 44px 32px;
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
        }
        .plan-card.featured {
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-elevated);
        }
        .plan-badge {
            position: absolute;
            top: -14px;
            right: 28px;
            background: var(--accent);
            color: #111827;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 20px;
        }
        .plan-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .plan-target {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .plan-features {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 32px;
        }
        .plan-features li {
            font-size: 15px;
            display: flex;
            gap: 10px;
            color: var(--text-body);
        }
        .plan-features li::before {
            content: "✓";
            color: var(--accent);
            font-weight: 700;
        }

        /* 板块 5: 核心卖点三连 */
        .section-features-three {
            background: #ffffff;
        }
        .features-three-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-item {
            border-left: 3px solid var(--primary);
            padding-left: 24px;
        }
        .feature-item h3 {
            font-size: 22px;
            color: var(--text-main);
            margin-bottom: 14px;
            font-weight: 700;
        }
        .feature-item p {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* 板块 6: 场景演示 */
        .section-showcase {
            background: var(--bg-warm);
        }
        .showcase-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }
        .showcase-block:last-child { margin-bottom: 0; }
        .showcase-image-wrapper {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }
        .showcase-image-wrapper img {
            width: 100%;
            height: 380px;
            object-fit: cover;
        }
        .showcase-info h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }
        .showcase-info p {
            font-size: 16px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
        }
        .showcase-metrics {
            display: flex;
            gap: 24px;
        }
        .showcase-stat-val {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
        }
        .showcase-stat-lbl {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 板块 7: 深色沉浸式财务模型 */
        .section-dark-model {
            background: var(--bg-dark);
            color: #ffffff;
            padding: 120px 0;
        }
        .dark-model-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 64px;
            align-items: center;
        }
        .dark-model-text h2 {
            font-size: 40px;
            line-height: 1.25;
            margin-bottom: 24px;
            color: #ffffff;
        }
        .dark-model-text p {
            font-size: 17px;
            line-height: 1.8;
            color: #cbd5e1;
            margin-bottom: 32px;
        }
        .code-box {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-md);
            padding: 32px;
        }
        .model-flow-step {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }
        .model-flow-step:last-child { margin-bottom: 0; }
        .step-index {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent);
            color: #000;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* 板块 8: 数据指标 */
        .section-metrics {
            background: #ffffff;
            padding: 64px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .metric-col {
            position: relative;
        }
        .metric-col:not(:last-child)::after {
            content: "";
            position: absolute;
            right: -16px;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border-light);
        }
        .metric-value {
            font-size: 46px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
            margin-bottom: 10px;
        }
        .metric-desc {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* 板块 9: 对比选型表 */
        .section-comparison {
            background: var(--bg-warm);
        }
        .comparison-table-wrapper {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-subtle);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
        }
        .compare-table th, .compare-table td {
            padding: 20px 24px;
            font-size: 15px;
            border-bottom: 1px solid var(--border-light);
        }
        .compare-table th {
            background: #f8fafc;
            font-weight: 700;
            color: var(--text-main);
        }
        .compare-table th.highlight-col, .compare-table td.highlight-col {
            background: rgba(13, 47, 40, 0.04);
            font-weight: 600;
            color: var(--primary);
        }

        /* 板块 10: 社会认同与复盘案例 */
        .section-testimonials {
            background: #ffffff;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .testimonial-card {
            background: var(--bg-warm);
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .testimonial-stars {
            color: #EAB308;
            margin-bottom: 16px;
            font-size: 16px;
            letter-spacing: 2px;
        }
        .testimonial-content {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-body);
            margin-bottom: 24px;
            font-style: italic;
        }
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .author-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #cbd5e1;
            overflow: hidden;
        }
        .author-meta h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-main);
        }
        .author-meta span {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 板块 11: 资讯与指引 */
        .section-insights {
            background: var(--bg-warm);
        }
        .insights-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .insight-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-subtle);
        }
        .insight-img-wrapper {
            height: 200px;
            overflow: hidden;
        }
        .insight-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        .insight-card:hover .insight-img-wrapper img {
            transform: scale(1.04);
        }
        .insight-content {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .insight-date {
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 8px;
        }
        .insight-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .insight-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 板块 12: 异议拆解 FAQ */
        .section-faq {
            background: #ffffff;
        }
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: var(--bg-warm);
            overflow: hidden;
        }
        .faq-question {
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .faq-toggle-icon {
            font-size: 18px;
            color: var(--accent);
            transition: transform 0.2s ease;
        }
        .faq-answer {
            padding: 0 28px 24px 28px;
            font-size: 15px;
            color: var(--text-body);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-toggle-icon {
            transform: rotate(45deg);
        }

        /* 板块 13: 保障说明与终极行动区 */
        .section-guarantee-action {
            background: linear-gradient(180deg, #F9F9F8 0%, #ECECE8 100%);
            border-top: 1px solid var(--border-light);
            padding: 100px 0;
        }
        .guarantee-badges {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            margin-bottom: 64px;
        }
        .guarantee-item {
            text-align: center;
            padding: 24px;
        }
        .guarantee-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .guarantee-desc {
            font-size: 14px;
            color: var(--text-muted);
        }
        .cta-box {
            background: var(--primary);
            color: #ffffff;
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            text-align: center;
            max-width: 920px;
            margin: 0 auto;
            box-shadow: var(--shadow-elevated);
        }
        .cta-box h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            color: #ffffff;
        }
        .cta-box p {
            font-size: 17px;
            color: #d1d5db;
            margin-bottom: 32px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            max-width: 560px;
            margin: 0 auto;
            gap: 12px;
        }
        .cta-input {
            flex-grow: 1;
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 15px;
            background: #ffffff;
            color: var(--text-main);
            outline: none;
        }
        .cta-input:focus {
            border-color: var(--accent);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: #9ca3af;
            font-size: 14px;
            padding: 80px 0 32px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 64px;
        }
        .footer-brand h4 {
            color: #ffffff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-col h5 {
            color: #ffffff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
        }

        /* 底部固定转化条 */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(10, 28, 24, 0.96);
            backdrop-filter: blur(10px);
            border-top: 1px solid rgba(197, 168, 128, 0.3);
            padding: 12px 0;
            z-index: 99;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }
        .sticky-cta-bar.show {
            transform: translateY(0);
        }
        .sticky-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .sticky-text {
            color: #ffffff;
            font-size: 15px;
            font-weight: 500;
        }

        /* 移动端与自适应断点 */
        @media (max-width: 1024px) {
            .audience-grid, .plans-grid, .features-three-grid, .testimonials-grid, .insights-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dark-model-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 64px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .hero-title {
                font-size: 34px;
            }
            .nav-links, .top-bar {
                display: none;
            }
            .audience-grid, .fit-grid, .plans-grid, .features-three-grid, .testimonials-grid, .insights-grid, .guarantee-badges {
                grid-template-columns: 1fr;
            }
            .showcase-block {
                grid-template-columns: 1fr;
            }
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .metric-col:not(:last-child)::after {
                display: none;
            }
            .cta-form {
                flex-direction: column;
            }
            .sticky-text {
                display: none;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 12px;
                text-align: center;
            }
        }