/* roulang page: index */
:root {
            --primary-speed: #00D26A;
            --primary-glow: rgba(0, 210, 106, 0.25);
            --tech-blue: #0284C7;
            --accent-orange: #FF6B00;
            --dark-graphite: #080D1A;
            --dark-indigo: #0F172A;
            --dark-navy: #0B1120;
            --slate-border: rgba(226, 232, 240, 0.8);
            --card-border-dark: rgba(255, 255, 255, 0.08);
            --text-heading: #0F172A;
            --text-body: #334155;
            --text-muted: #64748B;
            --bg-light: #F8FAFC;
            --bg-white: #FFFFFF;
            --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg-white);
            color: var(--text-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-smooth);
        }
        a:hover, a:focus {
            color: var(--primary-speed);
        }

        /* 顶部辅助栏 */
        .utility-bar {
            height: 38px;
            background-color: var(--dark-navy);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            color: #94A3B8;
            font-size: 12px;
            line-height: 38px;
        }
        .pulse-indicator {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: var(--primary-speed);
            border-radius: 50%;
            margin-right: 8px;
            box-shadow: 0 0 0 rgba(0, 210, 106, 0.4);
            animation: pulse-ring 2s infinite;
        }
        @keyframes pulse-ring {
            0% { box-shadow: 0 0 0 0 rgba(0, 210, 106, 0.6); }
            70% { box-shadow: 0 0 0 8px rgba(0, 210, 106, 0); }
            100% { box-shadow: 0 0 0 0 rgba(0, 210, 106, 0); }
        }

        /* SaaS 命令栏导航 */
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        }
        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 19px;
            font-weight: 800;
            color: var(--text-heading);
            letter-spacing: -0.02em;
        }
        .nav-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary-speed), var(--tech-blue));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFF;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(0, 210, 106, 0.3);
        }
        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 24px;
            margin: 0;
        }
        .nav-links a {
            font-size: 14px;
            font-weight: 600;
            color: #475569;
            padding: 8px 0;
            position: relative;
        }
        .nav-links a:hover {
            color: var(--text-heading);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary-speed);
            transition: var(--transition-smooth);
        }
        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .command-bar-btn {
            background: #F1F5F9;
            border: 1px solid #E2E8F0;
            border-radius: 6px;
            padding: 6px 12px;
            font-size: 12px;
            color: #64748B;
            display: flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            transition: var(--transition-smooth);
        }
        .command-bar-btn:hover {
            background: #E2E8F0;
            color: var(--text-heading);
        }
        .cmd-key {
            background: #FFFFFF;
            border: 1px solid #CBD5E1;
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 11px;
            font-weight: 700;
        }

        .btn-tech-primary {
            background: linear-gradient(135deg, #00D26A 0%, #059669 100%);
            color: #FFF !important;
            padding: 10px 20px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(0, 210, 106, 0.3);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
        }
        .btn-tech-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(0, 210, 106, 0.4);
        }
        .btn-tech-outline {
            background: transparent;
            border: 1px solid #CBD5E1;
            color: var(--text-heading) !important;
            padding: 10px 20px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-tech-outline:hover {
            border-color: var(--primary-speed);
            color: var(--primary-speed) !important;
            background: rgba(0, 210, 106, 0.05);
        }

        /* 通用排版 */
        .section-padding {
            padding: 96px 0;
            position: relative;
        }
        .section-header {
            max-width: 780px;
            margin: 0 auto 56px auto;
            text-align: center;
        }
        .section-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 210, 106, 0.1);
            color: #059669;
            font-size: 13px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-heading);
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 18px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* 纯净卡片体系 */
        .sports-card {
            background: #FFFFFF;
            border: 1px solid var(--slate-border);
            border-radius: 10px;
            padding: 32px;
            transition: var(--transition-smooth);
            position: relative;
            height: 100%;
        }
        .sports-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 210, 106, 0.5);
            box-shadow: 0 16px 32px -10px rgba(0, 210, 106, 0.12);
        }
        .card-icon-box {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            background: #F1F5F9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--tech-blue);
            margin-bottom: 20px;
            transition: var(--transition-smooth);
        }
        .sports-card:hover .card-icon-box {
            background: var(--primary-speed);
            color: #FFFFFF;
        }

        /* HERO 板块：众筹预热 + 目标进度环 + 档位预览 + 支持按钮 */
        .hero-section {
            background: linear-gradient(180deg, #0A101D 0%, #0F172A 100%);
            color: #FFFFFF;
            padding: 90px 0 100px 0;
            position: relative;
            overflow: hidden;
        }
        .hero-bg-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/b425b8118a586892.jpg');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero-title {
            font-size: 46px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -0.025em;
            color: #FFFFFF;
            margin-bottom: 22px;
        }
        .hero-title span {
            background: linear-gradient(135deg, #00D26A 0%, #38BDF8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .hero-intro {
            font-size: 17px;
            color: #94A3B8;
            margin-bottom: 36px;
            max-width: 620px;
        }

        /* 众筹预热进度盒 */
        .crowdfund-box {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(12px);
            border-radius: 12px;
            padding: 28px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }
        .progress-circle-wrap {
            position: relative;
            width: 130px;
            height: 130px;
            margin: 0 auto;
        }
        .circle-svg {
            transform: rotate(-90deg);
        }
        .circle-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 8;
        }
        .circle-progress {
            fill: none;
            stroke: var(--primary-speed);
            stroke-width: 8;
            stroke-dasharray: 377;
            stroke-dashoffset: 45; /* 88% */
            stroke-linecap: round;
            transition: stroke-dashoffset 1s ease-in-out;
        }
        .circle-stat-text {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
        }
        .circle-stat-text .percentage {
            font-size: 26px;
            font-weight: 800;
            color: #FFFFFF;
            display: block;
            line-height: 1;
        }
        .circle-stat-text .sub-text {
            font-size: 11px;
            color: #94A3B8;
            margin-top: 4px;
        }
        .crowdfund-tiers {
            margin: 24px 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .tier-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 8px;
            padding: 12px 16px;
            cursor: pointer;
            transition: var(--transition-smooth);
        }
        .tier-item:hover, .tier-item.active {
            border-color: var(--primary-speed);
            background: rgba(0, 210, 106, 0.08);
        }
        .tier-name {
            font-weight: 600;
            font-size: 14px;
            color: #F8FAFC;
        }
        .tier-quota {
            font-size: 12px;
            color: #94A3B8;
        }
        .tier-pledge {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary-speed);
        }

        /* 模拟即时检索栏 */
        .search-demo-bar {
            display: flex;
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 8px;
            padding: 6px;
            margin-top: 24px;
        }
        .search-demo-input {
            flex: 1;
            background: transparent;
            border: none;
            color: #FFF;
            padding: 10px 14px;
            font-size: 14px;
            outline: none;
        }
        .search-demo-input::placeholder {
            color: #64748B;
        }

        /* KPI 看板条 */
        .kpi-board-strip {
            background: #080D1A;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            padding: 40px 0;
            color: #FFF;
        }
        .kpi-num {
            font-size: 40px;
            font-weight: 800;
            line-height: 1;
            background: linear-gradient(135deg, #FFF 0%, #CBD5E1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", monospace;
        }
        .kpi-unit {
            font-size: 18px;
            color: var(--primary-speed);
            -webkit-text-fill-color: var(--primary-speed);
        }
        .kpi-label {
            font-size: 13px;
            color: #94A3B8;
            letter-spacing: 0.02em;
        }

        /* 深色专属引擎区 */
        .dark-engine-section {
            background-color: var(--dark-graphite);
            color: #FFFFFF;
            background-image: radial-gradient(circle at 50% 20%, rgba(2, 132, 199, 0.12) 0%, transparent 60%);
        }
        .dark-engine-section .section-title {
            color: #FFFFFF;
        }
        .dark-engine-section .section-desc {
            color: #94A3B8;
        }
        .dark-engine-card {
            background: rgba(255, 255, 255, 0.025);
            border: 1px solid var(--card-border-dark);
            border-radius: 10px;
            padding: 32px;
            transition: var(--transition-smooth);
        }
        .dark-engine-card:hover {
            border-color: var(--tech-blue);
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.04);
            box-shadow: 0 20px 30px -10px rgba(2, 132, 199, 0.2);
        }

        /* 矩阵表格与列表 */
        .feature-row {
            display: flex;
            align-items: center;
            padding: 20px;
            border-bottom: 1px solid #E2E8F0;
            transition: var(--transition-smooth);
        }
        .feature-row:hover {
            background-color: #F8FAFC;
        }
        .feature-badge {
            background: #E0F2FE;
            color: #0369A1;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            margin-right: 20px;
            width: 120px;
            text-align: center;
        }

        /* 价格卡片 */
        .pricing-card {
            background: #FFFFFF;
            border: 1px solid #E2E8F0;
            border-radius: 12px;
            padding: 40px 32px;
            position: relative;
            transition: var(--transition-smooth);
        }
        .pricing-card.featured {
            border: 2px solid var(--primary-speed);
            box-shadow: 0 20px 40px -15px rgba(0, 210, 106, 0.25);
            transform: scale(1.03);
        }
        .featured-tag {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary-speed);
            color: #FFF;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 12px;
        }
        .price-val {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-heading);
            margin: 18px 0;
            line-height: 1;
        }
        .price-unit {
            font-size: 14px;
            color: #94A3B8;
            font-weight: 500;
        }

        /* 控制台模拟视图 */
        .console-mockup {
            background: #090D16;
            border: 1px solid #1E293B;
            border-radius: 12px;
            box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.5);
            overflow: hidden;
        }
        .console-header-bar {
            background: #131B2E;
            padding: 12px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #1E293B;
        }
        .window-dots {
            display: flex;
            gap: 6px;
        }
        .window-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }
        .dot-red { background: #EF4444; }
        .dot-yellow { background: #F59E0B; }
        .dot-green { background: #10B981; }

        /* 手风琴与问答 */
        .accordion {
            background: transparent;
            border: none;
        }
        .accordion-item {
            background: #FFFFFF;
            border: 1px solid #E2E8F0;
            border-radius: 8px !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .accordion-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-heading);
            padding: 20px 24px;
            border: none;
            background: #FFFFFF;
            transition: var(--transition-smooth);
        }
        .accordion-title:hover, .accordion-title:focus {
            background: #F8FAFC;
            color: var(--tech-blue);
        }
        .accordion-content {
            padding: 20px 24px;
            font-size: 15px;
            color: var(--text-body);
            border-top: 1px solid #F1F5F9;
            background: #FAFAFA;
        }

        /* 资讯卡片配图 */
        .news-thumb-box {
            position: relative;
            height: 200px;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 20px;
        }
        .news-thumb-box img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .sports-card:hover .news-thumb-box img {
            transform: scale(1.05);
        }

        /* 转化卡片条 */
        .final-cta-wrap {
            background: linear-gradient(135deg, #0A101D 0%, #0F172A 100%);
            border-radius: 16px;
            padding: 70px 48px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        /* 页脚 */
        .site-footer {
            background: #050811;
            color: #94A3B8;
            padding: 80px 0 32px 0;
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-heading {
            color: #FFFFFF;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
        }
        .footer-nav-list {
            list-style: none;
            margin: 0;
        }
        .footer-nav-list li {
            margin-bottom: 10px;
        }
        .footer-nav-list a:hover {
            color: #FFFFFF;
        }
        .footer-bottom {
            margin-top: 60px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            text-align: center;
        }

        /* 响应式调整 */
        @media screen and (max-width: 1024px) {
            .nav-links { display: none; }
            .hero-title { font-size: 36px; }
            .section-padding { padding: 64px 0; }
        }
        @media screen and (max-width: 640px) {
            .hero-title { font-size: 28px; }
            .section-title { font-size: 26px; }
            .final-cta-wrap { padding: 40px 20px; }
            .pricing-card.featured { transform: none; }
        }