/* roulang page: index */
:root {
            --primary: #6C5CE7;
            --primary-light: #8172fc;
            --cyan: #00CEC9;
            --accent: #FFA502;
            --danger: #FF4757;
            --bg-deep: #090B10;
            --bg-base: #0F111A;
            --bg-surface: #181B26;
            --bg-card: #212534;
            --bg-card-hover: #292E42;
            --text-title: #F5F6FA;
            --text-body: #A4B0BE;
            --text-muted: #747D8C;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-focus: rgba(108, 92, 231, 0.4);
            --glow-primary: 0 8px 32px rgba(108, 92, 231, 0.25);
            --glow-cyan: 0 8px 32px rgba(0, 206, 201, 0.25);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            -webkit-tap-highlight-color: transparent;
        }

        html {
            scroll-behavior: smooth;
            background-color: var(--bg-deep);
            color: var(--text-body);
            font-family: var(--font-family);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            background-color: var(--bg-base);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        ul, ol {
            list-style: none;
        }

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

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

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 56px auto;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(108, 92, 231, 0.15);
            border: 1px solid rgba(108, 92, 231, 0.3);
            border-radius: 99px;
            color: var(--cyan);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-title {
            color: var(--text-title);
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.25s ease;
            border: none;
            outline: none;
            gap: 8px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, #4834d4 100%);
            color: #fff;
            box-shadow: var(--glow-primary);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(108, 92, 231, 0.4);
        }

        .btn-cyan {
            background: linear-gradient(135deg, var(--cyan) 0%, #00a8a3 100%);
            color: #0b2221;
            box-shadow: var(--glow-cyan);
        }

        .btn-cyan:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(0, 206, 201, 0.4);
        }

        .btn-outline {
            background: transparent;
            color: var(--text-title);
            border: 1px solid var(--border-dim);
        }

        .btn-outline:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(0, 206, 201, 0.05);
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            backdrop-filter: blur(16px);
            background: rgba(15, 17, 26, 0.88);
            border-bottom: 1px solid var(--border-dim);
        }

        .top-notice-bar {
            background: linear-gradient(90deg, #181b26 0%, #212534 100%);
            border-bottom: 1px solid var(--border-dim);
            font-size: 12px;
            padding: 6px 0;
            color: var(--text-muted);
        }

        .top-notice-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .top-notice-inner a {
            color: var(--cyan);
            margin-left: 8px;
        }

        .top-contact-links {
            display: flex;
            gap: 16px;
        }

        .main-nav-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-title);
            letter-spacing: -0.5px;
        }

        .brand-badge {
            background: linear-gradient(135deg, var(--primary), var(--cyan));
            color: #fff;
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 4px;
            font-weight: 700;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            position: relative;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--text-title);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
        }

        /* 首屏 Hero：众筹预热目标 */
        .hero-crowd-section {
            padding: 80px 0 60px 0;
            background: radial-gradient(circle at 70% 30%, rgba(108, 92, 231, 0.15) 0%, rgba(15, 17, 26, 0) 70%),
                        linear-gradient(180deg, var(--bg-base) 0%, var(--bg-surface) 100%);
            border-bottom: 1px solid var(--border-dim);
            position: relative;
        }

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

        .hero-h1 {
            font-size: 44px;
            font-weight: 900;
            color: var(--text-title);
            line-height: 1.25;
            margin-bottom: 20px;
        }

        .hero-h1 span {
            background: linear-gradient(90deg, #fff 0%, var(--cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-intro {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-pledge-card {
            background: var(--bg-card);
            border: 1px solid var(--border-focus);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
            position: relative;
        }

        .target-bar-wrap {
            margin: 20px 0;
        }

        .target-metric-head {
            display: flex;
            justify-content: space-between;
            font-size: 14px;
            margin-bottom: 8px;
        }

        .target-progress-bg {
            width: 100%;
            height: 10px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 99px;
            overflow: hidden;
        }

        .target-progress-fill {
            width: 88.6%;
            height: 100%;
            background: linear-gradient(90deg, var(--primary) 0%, var(--cyan) 100%);
            border-radius: 99px;
        }

        .pledge-tiers {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }

        .pledge-tier-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            padding: 14px 18px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: all 0.25s;
        }

        .pledge-tier-item:hover, .pledge-tier-item.active {
            border-color: var(--cyan);
            background: rgba(0, 206, 201, 0.05);
        }

        /* 通用 Section 样式 */
        .page-section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-dim);
        }

        .bg-surface-tint {
            background-color: var(--bg-surface);
        }

        .bg-deep-tint {
            background-color: var(--bg-deep);
        }

        /* 板块 2：客户案例 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dim);
            transition: transform 0.25s, border-color 0.25s;
        }

        .case-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-focus);
        }

        .case-img-box {
            position: relative;
            height: 190px;
            overflow: hidden;
        }

        .case-img-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .case-body {
            padding: 24px;
        }

        .case-role {
            font-size: 12px;
            color: var(--cyan);
            font-weight: 700;
            margin-bottom: 8px;
        }

        .case-title {
            color: var(--text-title);
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        /* 板块 3：结果数据条 */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            background: linear-gradient(135deg, rgba(33, 37, 52, 0.8), rgba(24, 27, 38, 0.8));
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-lg);
            padding: 40px;
        }

        .stat-item {
            text-align: center;
            border-right: 1px solid var(--border-dim);
        }

        .stat-item:last-child {
            border-right: none;
        }

        .stat-num {
            font-size: 40px;
            font-weight: 900;
            color: var(--text-title);
            line-height: 1;
            margin-bottom: 8px;
            font-family: var(--font-family);
        }

        .stat-num span {
            color: var(--cyan);
            font-size: 24px;
        }

        .stat-lbl {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 板块 4：前后对比 */
        .comparison-table-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-dim);
            overflow: hidden;
        }

        .compare-row {
            display: grid;
            grid-template-columns: 2fr 3fr 3fr;
            padding: 20px 24px;
            border-bottom: 1px solid var(--border-dim);
            align-items: center;
        }

        .compare-row.head {
            background: rgba(255, 255, 255, 0.02);
            font-weight: 700;
            color: var(--text-title);
        }

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

        .col-before {
            color: var(--danger);
            font-size: 14px;
        }

        .col-after {
            color: var(--cyan);
            font-size: 14px;
            font-weight: 600;
        }

        /* 板块 5：硬核痛点破局 (卖点三连) */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .pain-card {
            background: var(--bg-card);
            padding: 32px 28px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dim);
            position: relative;
        }

        .pain-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(108, 92, 231, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .pain-card h4 {
            color: var(--text-title);
            font-size: 18px;
            margin-bottom: 12px;
        }

        .pain-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 6：功能矩阵 (六维生态) */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dim);
            padding: 28px;
            transition: all 0.25s;
        }

        .feature-card:hover {
            border-color: var(--border-focus);
            transform: translateY(-4px);
        }

        .feature-badge {
            font-size: 11px;
            padding: 2px 8px;
            background: rgba(0, 206, 201, 0.1);
            color: var(--cyan);
            border-radius: 4px;
            display: inline-block;
            margin-bottom: 12px;
        }

        .feature-card h4 {
            color: var(--text-title);
            font-size: 18px;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 7：场景演示 */
        .scene-showcase {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scene-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-dim);
        }

        .scene-cover {
            height: 200px;
            position: relative;
        }

        .scene-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scene-content {
            padding: 24px;
        }

        .scene-content h4 {
            color: var(--text-title);
            font-size: 18px;
            margin-bottom: 10px;
        }

        .scene-content p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
        }

        /* 板块 8：高玩战略与机制算法 */
        .algorithm-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .algo-code-box {
            background: #000;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-dim);
            font-family: monospace;
            font-size: 13px;
            color: #00cec9;
            line-height: 1.6;
            overflow-x: auto;
        }

        /* 板块 9：公会与专家认证 */
        .endorse-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .endorse-card {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
        }

        .endorse-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 16px auto;
            border: 2px solid var(--cyan);
            object-fit: cover;
        }

        .endorse-name {
            color: var(--text-title);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .endorse-role {
            font-size: 12px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .endorse-words {
            font-size: 13px;
            color: var(--text-body);
            line-height: 1.5;
        }

        /* 板块 10：资讯与版本拆解 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-dim);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

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

        .news-card h4 {
            color: var(--text-title);
            font-size: 17px;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        /* 板块 11：常见异议拆解 (FAQ) */
        .faq-accordion {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-title);
            background: rgba(255, 255, 255, 0.01);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--cyan);
        }

        .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* 板块 12：咨询表单入口 */
        .contact-box-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px;
            border: 1px solid var(--border-dim);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            background: var(--bg-surface);
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-sm);
            color: var(--text-title);
            font-size: 14px;
            outline: none;
            transition: border-color 0.25s;
        }

        .form-input:focus {
            border-color: var(--cyan);
        }

        /* 板块 13：终极转化大屏与保障条 */
        .bottom-banner-box {
            background: radial-gradient(circle at center, rgba(108, 92, 231, 0.2) 0%, rgba(15, 17, 26, 0.95) 100%), var(--bg-card);
            border: 1px solid var(--border-focus);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
        }

        .guarantee-badges {
            display: flex;
            justify-content: center;
            gap: 36px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
        }

        /* 底部固定转化条 */
        .sticky-action-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: rgba(15, 17, 26, 0.92);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-dim);
            padding: 12px 0;
            z-index: 990;
            display: flex;
            align-items: center;
        }

        .sticky-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .sticky-left {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .sticky-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
        }

        /* 页脚区 */
        .site-footer {
            background: var(--bg-deep);
            padding: 70px 0 100px 0;
            border-top: 1px solid var(--border-dim);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-col h5 {
            color: var(--text-title);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .footer-links li {            margin-bottom: 12px;
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .hero-grid, .algorithm-wrap, .contact-box-grid {
                grid-template-columns: 1fr;
            }
            .case-grid, .feature-grid, .scene-showcase, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .endorse-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links, .top-notice-bar {
                display: none;
            }
            .hero-h1 {
                font-size: 30px;
            }
            .case-grid, .feature-grid, .scene-showcase, .news-grid, .pain-grid, .endorse-grid {
                grid-template-columns: 1fr;
            }
            .stats-strip {
                grid-template-columns: 1fr;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid var(--border-dim);
                padding-bottom: 20px;
            }
            .stat-item:last-child {
                border-bottom: none;
                padding-bottom: 0;
            }
            .compare-row {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .sticky-action-bar {
                padding: 10px 0;
            }
            .sticky-left span {
                display: none;
            }
        }