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

        body {
            font-family: 'Inter', sans-serif;
            background: #f0f6fe;
            color: #1e293b;
            overflow-x: hidden;
            position: relative;
        }

        /* ========= 动态线条流动背景 Canvas ========= */
        #canvas-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
            opacity: 0.5;
        }

        /* 左右布局 - 玻璃质感覆盖在canvas之上 */
        .two-columns {
            display: flex;
            position: relative;
            z-index: 2;
            min-height: 100vh;
            max-width: 1600px;
            margin: 0 auto;
            backdrop-filter: blur(1px);
        }

        /* ========= 左侧导航栏 (玻璃+微光) ========= */
        .left-sidebar {
            width: 280px;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            border-right: 1px solid rgba(59,130,246,0.3);
            padding: 32px 24px;
            position: sticky;
            top: 0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            transition: all 0.3s;
            box-shadow: 4px 0 20px rgba(0,0,0,0.02);
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 56px;
            animation: fadeInUp 0.6s ease;
        }
        .logo-area i {
            font-size: 38px;
            color: #3b82f6;
            filter: drop-shadow(0 0 8px rgba(59,130,246,0.5));
            transition: all 0.2s;
        }
        .logo-area:hover i {
            transform: rotate(8deg) scale(1.05);
            text-shadow: 0 0 12px #3b82f6;
        }
        .logo-area h2 {
            font-size: 1.55rem;
            font-weight: 800;
            background: linear-gradient(135deg, #1e40af, #3b82f6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .nav-menu {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 20px;
            border-radius: 60px;
            font-weight: 600;
            color: #334155;
            transition: all 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.2);
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }
        .nav-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 0%;
            height: 100%;
            background: linear-gradient(90deg, rgba(59,130,246,0.2), transparent);
            transition: width 0.4s;
            z-index: -1;
        }
        .nav-item:hover::before {
            width: 100%;
        }
        .nav-item.active {
            background: rgba(59,130,246,0.2);
            color: #2563eb;
            box-shadow: 0 6px 14px rgba(59,130,246,0.15);
            border: 1px solid rgba(59,130,246,0.4);
        }
        .nav-item i {
            width: 28px;
            font-size: 1.25rem;
            transition: transform 0.2s;
        }
        .nav-item:hover i {
            transform: translateX(5px);
        }
        .left-footer {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px solid rgba(59,130,246,0.2);
            font-size: 0.7rem;
            color: #5b6e8c;
        }

        /* ========= 右侧主内容区（冲击感卡片） ========= */
        .main-content {
            flex: 1;
            padding: 32px 40px 60px;
            overflow-x: hidden;
        }

        /* 倒计时模块 - 强烈冲击渐变 */
        .countdown-module {
            background: linear-gradient(135deg, rgba(255,255,255,0.9), rgba(240,248,255,0.95));
            backdrop-filter: blur(12px);
            border-radius: 56px;
            padding: 36px 28px;
            margin-bottom: 48px;
            text-align: center;
            border: 1px solid rgba(59,130,246,0.3);
            box-shadow: 0 25px 40px -12px rgba(59,130,246,0.2);
            transition: transform 0.3s ease, box-shadow 0.3s;
            position: relative;
            overflow: hidden;
        }
        .countdown-module::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(59,130,246,0.08), transparent);
            animation: rotateGlow 12s linear infinite;
            z-index: 0;
        }
        @keyframes rotateGlow {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        .countdown-module:hover {
            transform: translateY(-6px);
            box-shadow: 0 32px 48px -16px rgba(59,130,246,0.3);
        }
        .timer-grid {
            display: flex;
            justify-content: center;
            gap: 28px;
            flex-wrap: wrap;
            margin: 28px 0 18px;
            position: relative;
            z-index: 2;
        }
        .time-card {
            background: rgba(255,255,255,0.7);
            backdrop-filter: blur(8px);
            border-radius: 40px;
            padding: 14px 24px;
            min-width: 110px;
            transition: all 0.25s;
            border: 1px solid rgba(59,130,246,0.3);
        }
        .time-card:hover {
            transform: scale(1.08);
            background: white;
            box-shadow: 0 12px 28px rgba(59,130,246,0.2);
        }
        .time-number {
            font-size: 3.4rem;
            font-weight: 800;
            font-family: monospace;
            background: linear-gradient(145deg, #1e40af, #3b82f6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .subtle-message {
            background: rgba(59,130,246,0.1);
            display: inline-block;
            padding: 8px 28px;
            border-radius: 60px;
            font-weight: 500;
        }

        /* 通用标题 带动感下划线 */
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin: 52px 0 28px 0;
            position: relative;
        }
        .section-header h2 {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.3px;
            background: linear-gradient(120deg, #1e293b, #3b82f6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 50px;
            height: 4px;
            background: linear-gradient(90deg, #3b82f6, #a5c9ff);
            border-radius: 4px;
            transition: width 0.3s;
        }
        .section-header:hover h2::after {
            width: 90px;
        }
        .view-more {
            background: rgba(59,130,246,0.1);
            padding: 8px 24px;
            border-radius: 40px;
            font-weight: 600;
            color: #2563eb;
            cursor: pointer;
            transition: all 0.2s;
            backdrop-filter: blur(4px);
        }
        .view-more:hover {
            background: #3b82f6;
            color: white;
            transform: translateX(5px);
            box-shadow: 0 4px 12px rgba(59,130,246,0.3);
        }

        /* 新闻卡片 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: rgba(255,255,255,0.8);
            backdrop-filter: blur(8px);
            border-radius: 36px;
            overflow: hidden;
            transition: all 0.35s cubic-bezier(0.1, 0.8, 0.3, 1.2);
            cursor: pointer;
            border: 1px solid rgba(59,130,246,0.2);
        }
        .news-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 28px 36px -12px rgba(59,130,246,0.3);
            border-color: #8bb4f0;
        }
        .news-img {
            height: 190px;
            overflow: hidden;
        }
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: 0.4s;
        }
        .news-card:hover .news-img img {
            transform: scale(1.08);
        }
        .news-info {
            padding: 22px;
        }

        /* 直播卡片 */
        .live-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .live-card {
            background: rgba(255,255,255,0.8);
            backdrop-filter: blur(8px);
            border-radius: 36px;
            overflow: hidden;
            transition: all 0.35s;
            cursor: pointer;
            border: 1px solid rgba(59,130,246,0.2);
        }
        .live-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 24px 36px -12px rgba(59,130,246,0.25);
            border-color: #3b82f6;
        }
        .live-header {
            display: flex;
            justify-content: space-between;
            padding: 16px 22px;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }
        .live-badge {
            background: #dcfce7;
            color: #15803d;
            border-radius: 30px;
            padding: 2px 14px;
            font-weight: 700;
            font-size: 0.7rem;
            animation: pulse 1.5s infinite;
        }
        @keyframes pulse {
            0% { opacity: 0.7; transform: scale(0.95);}
            100% { opacity: 1; transform: scale(1);}
        }
        .teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            margin: 20px 0;
        }
        .team-logo img {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: #f1f5f9;
            padding: 6px;
            transition: transform 0.2s;
        }
        .live-card:hover .team-logo img {
            transform: scale(1.05);
        }
        .vs {
            background: #e2e8f0;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #3b82f6;
        }
        .match-info {
            background: rgba(0,0,0,0.02);
            border-radius: 28px;
            padding: 12px;
            text-align: center;
            margin: 16px 0;
        }
        .watch-btn {
            background: linear-gradient(90deg, #eef2ff, #e0eaff);
            text-align: center;
            padding: 12px;
            border-radius: 60px;
            font-weight: 700;
            transition: 0.2s;
        }
        .watch-btn:hover {
            background: #3b82f6;
            color: white;
            letter-spacing: 1px;
        }

        /* 录像卡片 */
        .replay-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
            gap: 28px;
        }
        .replay-card {
            background: rgba(255,255,255,0.8);
            backdrop-filter: blur(8px);
            border-radius: 32px;
            overflow: hidden;
            transition: 0.3s;
            cursor: pointer;
        }
        .replay-card:hover {
            transform: translateY(-5px) scale(0.99);
            background: white;
            box-shadow: 0 20px 28px -12px rgba(0,0,0,0.1);
        }
        .replay-thumb {
            background: linear-gradient(145deg, #e2e8f0, #cbd5e1);
            height: 160px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .play-icon {
            position: absolute;
            background: rgba(255,255,255,0.9);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: 0.2s;
        }
        .replay-card:hover .play-icon {
            transform: scale(1.1);
            background: white;
            color: #2563eb;
        }

        /* 右侧边栏 信息卡片 */
        .right-sidebar {
            width: 300px;
            background: rgba(248,250,255,0.7);
            backdrop-filter: blur(16px);
            border-left: 1px solid rgba(59,130,246,0.2);
            padding: 32px 20px;
            position: sticky;
            top: 0;
            height: 100vh;
            overflow-y: auto;
        }
        .info-card {
            background: rgba(255,255,255,0.6);
            backdrop-filter: blur(8px);
            border-radius: 40px;
            padding: 24px;
            margin-bottom: 28px;
            transition: all 0.2s;
            border: 1px solid rgba(59,130,246,0.2);
        }
        .info-card:hover {
            transform: translateX(-4px);
            background: rgba(255,255,255,0.85);
        }
        .keyword-chip {
            background: rgba(59,130,246,0.1);
            padding: 6px 18px;
            border-radius: 40px;
            display: inline-block;
            margin: 6px 6px 0 0;
            font-size: 0.75rem;
            transition: 0.2s;
            cursor: pointer;
        }
        .keyword-chip:hover {
            background: #3b82f6;
            color: white;
            transform: translateY(-2px);
        }
        .live-clock {
            font-size: 1.8rem;
            font-weight: 800;
            font-family: monospace;
            text-shadow: 0 0 6px #3b82f6;
        }
        footer {
            margin-top: 60px;
            text-align: center;
            padding: 24px 0;
            border-top: 1px solid rgba(59,130,246,0.2);
            font-size: 0.7rem;
        }

        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        @media (max-width: 1100px) {
            .two-columns { flex-direction: column; }
            .left-sidebar { width: 100%; height: auto; position: relative; flex-direction: row; align-items: center; gap: 20px; flex-wrap: wrap; }
            .nav-menu { flex-direction: row; flex-wrap: wrap; }
            .right-sidebar { width: 100%; height: auto; border-left: none; border-top: 1px solid rgba(59,130,246,0.2); }
        }
        .ad { cursor: pointer; }