/* roulang page: index */
:root {
            --bg-primary: #0B0E14;
            --bg-secondary: #141824;
            --bg-tertiary: #1B2132;
            --neon-green: #00FF87;
            --neon-cyan: #60EFFF;
            --neon-orange: #FF5E3A;
            --text-main: #FFFFFF;
            --text-muted: #94A3B8;
            --text-dim: #64748B;
            --border-dim: rgba(255, 255, 255, 0.08);
            --border-neon: rgba(0, 255, 135, 0.35);
            --radius-md: 10px;
            --radius-lg: 16px;
            --glow-green: 0 0 25px rgba(0, 255, 135, 0.2);
            --glow-cyan: 0 0 25px rgba(96, 239, 255, 0.2);
        }

        /* 基础与排版重置 */
        body {
            background-color: var(--bg-primary);
            color: var(--text-muted);
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.8;
            letter-spacing: -0.2px;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            color: var(--text-main);
            font-weight: 700;
            letter-spacing: -0.5px;
        }

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

        /* 导航系统定制 */
        .top-status-bar {
            background: rgba(8, 10, 15, 0.98);
            border-bottom: 1px solid var(--border-dim);
            font-size: 0.85rem;
            color: var(--text-dim);
            padding: 7px 0;
        }
        .main-header {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(11, 14, 20, 0.94);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-dim);
        }
        .navbar-brand-custom {
            font-size: 1.45rem;
            font-weight: 800;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--neon-green);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--neon-green);
        }
        .nav-link-custom {
            color: #CBD5E1 !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 16px !important;
            position: relative;
        }
        .nav-link-custom:hover,
        .nav-link-custom.active {
            color: var(--neon-green) !important;
        }
        .nav-link-custom.active::after {
            content: '';
            position: absolute;
            bottom: 0px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--neon-green);
            box-shadow: 0 0 8px var(--neon-green);
        }

        /* 按钮与交互元件 */
        .btn-neon-primary {
            background: var(--neon-green);
            color: #05130B;
            font-weight: 700;
            border-radius: 8px;
            padding: 10px 24px;
            border: 1px solid var(--neon-green);
            box-shadow: 0 0 16px rgba(0, 255, 135, 0.3);
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
        }
        .btn-neon-primary:hover {
            background: #26ff96;
            color: #05130B;
            box-shadow: 0 0 24px rgba(0, 255, 135, 0.55);
            transform: translateY(-2px);
        }
        .btn-neon-ghost {
            background: rgba(255, 255, 255, 0.03);
            color: var(--text-main);
            font-weight: 600;
            border-radius: 8px;
            padding: 10px 24px;
            border: 1px solid var(--border-dim);
            backdrop-filter: blur(8px);
            transition: all 0.3s ease;
        }
        .btn-neon-ghost:hover {
            border-color: var(--neon-cyan);
            color: var(--neon-cyan);
            background: rgba(96, 239, 255, 0.05);
            box-shadow: 0 0 16px rgba(96, 239, 255, 0.25);
            transform: translateY(-2px);
        }

        /* 徽章与标签 */
        .badge-live-neon {
            background: rgba(0, 255, 135, 0.12);
            color: var(--neon-green);
            border: 1px solid rgba(0, 255, 135, 0.3);
            padding: 4px 12px;
            font-size: 0.8rem;
            font-weight: 600;
            border-radius: 50px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .badge-live-neon::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--neon-green);
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0% { opacity: 0.3; transform: scale(0.9); }
            50% { opacity: 1; transform: scale(1.3); }
            100% { opacity: 0.3; transform: scale(0.9); }
        }
        .badge-tag {
            background: var(--bg-tertiary);
            color: var(--neon-cyan);
            border: 1px solid rgba(96, 239, 255, 0.2);
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 4px;
        }

        /* 板块容器交替背景 */
        .section-py {
            padding: 85px 0;
            position: relative;
        }
        .bg-flow-dark {
            background-color: var(--bg-primary);
        }
        .bg-flow-soft {
            background-color: var(--bg-secondary);
        }

        /* 标题组规范 */
        .section-header-box {
            margin-bottom: 48px;
        }
        .section-subtitle-tag {
            color: var(--neon-green);
            font-size: 0.88rem;
            font-weight: 700;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-main-title {
            font-size: 2.15rem;
            margin-bottom: 14px;
        }
        .section-desc-lead {
            font-size: 1.02rem;
            color: var(--text-muted);
            max-width: 780px;
            margin: 0 auto;
        }

        /* 卡片基础架构重置 */
        .neon-card {
            background: #111520;
            border: 1px solid var(--border-dim);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            position: relative;
            overflow: hidden;
            height: 100%;
        }
        .neon-card:hover {
            border-color: var(--border-neon);
            box-shadow: var(--glow-green);
            transform: translateY(-4px);
        }
        .card-img-wrap {
            border-radius: 8px;
            overflow: hidden;
            position: relative;
        }
        .card-img-wrap img {
            width: 100%;
            height: 210px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .neon-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        /* Hero 沉浸海报专属设计 */
        .hero-section-poster {
            min-height: 85vh;
            background: linear-gradient(180deg, rgba(11, 14, 20, 0.75) 0%, rgba(11, 14, 20, 0.95) 100%),
                        url('/assets/images/75a8261d63059361.jpg') center/cover no-repeat;
            display: flex;
            align-items: center;
            position: relative;
            padding: 100px 0 70px 0;
            border-bottom: 1px solid var(--border-dim);
        }
        .hero-poster-frame {
            border: 1px solid rgba(0, 255, 135, 0.3);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 0 35px rgba(0, 255, 135, 0.15);
            background: #000;
        }
        .hero-poster-frame img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 数据指标网格 */
        .kpi-digit {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--neon-green);
            line-height: 1;
            font-feature-settings: "tnum";
            font-variant-numeric: tabular-nums;
        }
        .kpi-sub {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 8px;
        }

        /* 手风琴改造 */
        .accordion-neon .accordion-item {
            background-color: var(--bg-tertiary);
            border: 1px solid var(--border-dim);
            margin-bottom: 14px;
            border-radius: var(--radius-md) !important;
            overflow: hidden;
        }
        .accordion-neon .accordion-button {
            background-color: transparent;
            color: var(--text-main);
            font-weight: 600;
            padding: 20px 24px;
            box-shadow: none;
        }
        .accordion-neon .accordion-button:not(.collapsed) {
            background-color: rgba(0, 255, 135, 0.06);
            color: var(--neon-green);
            border-bottom: 1px solid var(--border-dim);
        }
        .accordion-neon .accordion-button::after {
            filter: invert(1);
        }
        .accordion-neon .accordion-body {
            color: var(--text-muted);
            padding: 20px 24px;
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* 页脚体系 */
        .site-footer {
            background-color: #06080B;
            border-top: 1px solid var(--border-dim);
            padding: 70px 0 25px 0;
            font-size: 0.9rem;
        }
        .footer-link-group a {
            display: block;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .footer-link-group a:hover {
            color: var(--neon-green);
            padding-left: 4px;
        }
        .footer-bottom-line {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 25px;
            margin-top: 50px;
            font-size: 0.82rem;
            color: var(--text-dim);
        }

        @media (max-width: 991px) {
            .section-main-title { font-size: 1.75rem; }
            .hero-section-poster { min-height: auto; padding: 70px 0 50px 0; }
            .navbar-collapse {
                background: #0E121B;
                padding: 16px;
                border-radius: 8px;
                margin-top: 12px;
                border: 1px solid var(--border-dim);
            }
        }