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

        body {
            font-family: 'Inter', sans-serif;
            background: #f5f9ff;
            color: #1e293b;
            line-height: 1.5;
        }

        /* 左右布局核心：固定左侧边栏 + 右侧滚动内容 */
        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ========= 左侧边栏（清爽玻璃质感） ========= */
        .sidebar {
            width: 280px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-right: 1px solid #e2edf7;
            padding: 32px 20px;
            position: sticky;
            top: 0;
            height: 100vh;
            display: flex;
            flex-direction: column;
            transition: all 0.2s;
            box-shadow: 4px 0 12px rgba(0,0,0,0.02);
        }
        .logo-area {
            margin-bottom: 48px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .logo-area i {
            font-size: 34px;
            color: #3b82f6;
            background: #eef2ff;
            padding: 10px;
            border-radius: 24px;
        }
        .logo-area h2 {
            font-size: 1.55rem;
            font-weight: 700;
            background: linear-gradient(135deg, #1e40af, #3b82f6);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 18px;
            border-radius: 28px;
            font-weight: 500;
            color: #475569;
            transition: all 0.2s;
            cursor: pointer;
            font-size: 1rem;
        }
        .nav-item i {
            width: 26px;
            font-size: 1.2rem;
        }
        .nav-item.active {
            background: #eef2ff;
            color: #3b82f6;
        }
        .nav-item:hover:not(.active) {
            background: #f1f5f9;
            color: #2563eb;
        }
        .sidebar-footer {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid #e2edf7;
            font-size: 0.75rem;
            color: #6c86a3;
        }
        .keyword-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .keyword-badge {
            background: #eef2ff;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.7rem;
            color: #2563eb;
            cursor: pointer;
            transition: 0.2s;
        }
        .keyword-badge:hover {
            background: #3b82f6;
            color: white;
        }

        /* ========= 右侧主内容区 ========= */
        .main-content {
            flex: 1;
            overflow-x: hidden;
            padding: 32px 40px 60px 40px;
            max-width: calc(100% - 280px);
        }

        /* 倒计时卡片 (清新留白) */
        .countdown-module {
            background: white;
            border-radius: 48px;
            padding: 28px 28px;
            margin-bottom: 48px;
            text-align: center;
            box-shadow: 0 8px 20px -6px rgba(0,0,0,0.03);
            border: 1px solid #eef2ff;
        }
        .tournament {
            font-size: 1.6rem;
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 8px;
        }
        .tournament-name {
            font-weight: 800;
            background: linear-gradient(120deg, #2563eb, #06b6d4);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .countdown-module h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #0f172a;
            margin: 8px 0;
        }
        .host {
            font-size: 0.85rem;
            background: #eef2ff;
            display: inline-block;
            padding: 4px 18px;
            border-radius: 40px;
            color: #2563eb;
        }
        .date-note {
            font-size: 0.8rem;
            color: #5b6e8c;
            margin: 16px 0 10px;
        }
        .timer-grid {
            display: flex;
            justify-content: center;
            gap: 18px;
            flex-wrap: wrap;
            margin: 20px 0 12px;
        }
        .time-card {
            background: #f8fafc;
            border-radius: 28px;
            padding: 12px 18px;
            min-width: 80px;
            border: 1px solid #e2e8f0;
        }
        .time-number {
            font-size: 2.6rem;
            font-weight: 800;
            font-family: monospace;
            color: #1e40af;
        }
        .time-unit-label {
            font-size: 0.7rem;
            color: #5b6e8c;
        }
        .subtle-message {
            background: #eef2ff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #1e40af;
            display: inline-block;
        }

        /* 通用区块样式 */
        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin: 48px 0 24px 0;
        }
        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #0f172a;
            letter-spacing: -0.3px;
        }
        .section-header h2 i {
            color: #3b82f6;
            margin-right: 12px;
        }
        .view-more {
            color: #3b82f6;
            background: #eef2ff;
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 500;
            cursor: pointer;
            transition: 0.2s;
        }
        .view-more:hover {
            background: #3b82f6;
            color: white;
        }

        /* 新闻网格 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: white;
            border-radius: 32px;
            overflow: hidden;
            transition: all 0.25s;
            cursor: pointer;
            border: 1px solid #eef2ff;
            box-shadow: 0 4px 8px rgba(0,0,0,0.02);
        }
        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 28px -12px rgba(59,130,246,0.12);
            border-color: #cbdffa;
        }
        .news-img {
            height: 180px;
            overflow: hidden;
        }
        .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: 0.3s;
        }
        .news-card:hover .news-img img {
            transform: scale(1.03);
        }
        .news-info {
            padding: 20px;
        }
        .news-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 12px;
        }
        .news-meta {
            font-size: 0.7rem;
            color: #7c8ba0;
            display: flex;
            gap: 16px;
        }

        /* 直播卡片 清爽左右布局内依然保留 */
        .live-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .live-card {
            background: white;
            border-radius: 32px;
            overflow: hidden;
            border: 1px solid #eef2ff;
            transition: all 0.2s;
            cursor: pointer;
        }
        .live-card:hover {
            transform: translateY(-3px);
            border-color: #b9d0f8;
            box-shadow: 0 12px 20px -12px rgba(0,0,0,0.08);
        }
        .live-header {
            background: #fafdff;
            padding: 12px 20px;
            display: flex;
            justify-content: space-between;
            border-bottom: 1px solid #eef2ff;
        }
        .live-sport {
            font-weight: 600;
            color: #2563eb;
        }
        .live-badge {
            background: #dcfce7;
            color: #15803d;
            border-radius: 30px;
            padding: 2px 12px;
            font-size: 0.7rem;
            font-weight: 700;
        }
        .live-body {
            padding: 20px;
        }
        .teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 20px;
        }
        .team {
            text-align: center;
            flex: 1;
        }
        .team-logo img {
            width: 54px;
            height: 54px;
            object-fit: contain;
            background: #f1f5f9;
            border-radius: 50%;
            padding: 5px;
        }
        .team-name {
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: 8px;
        }
        .vs {
            background: #e2e8f0;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-weight: 800;
            color: #3b82f6;
        }
        .match-info {
            background: #f8fafc;
            border-radius: 24px;
            padding: 10px;
            font-size: 0.75rem;
            text-align: center;
            margin: 16px 0;
        }
        .watch-btn {
            background: #eff6ff;
            text-align: center;
            padding: 10px;
            border-radius: 60px;
            font-weight: 600;
            color: #2563eb;
            transition: 0.2s;
        }
        .watch-btn:hover {
            background: #3b82f6;
            color: white;
        }

        /* 录像卡片 */
        .replay-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 28px;
        }
        .replay-card {
            background: white;
            border-radius: 28px;
            overflow: hidden;
            cursor: pointer;
            border: 1px solid #eef2ff;
            transition: 0.2s;
        }
        .replay-card:hover {
            transform: scale(0.98);
            background: #fefefe;
        }
        .replay-thumb {
            background: #eef2ff;
            height: 150px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            color: #3b82f6;
            font-size: 2.8rem;
        }
        .play-icon {
            position: absolute;
            background: rgba(255,255,255,0.8);
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .replay-detail {
            padding: 16px;
        }
        .replay-title {
            font-weight: 700;
            margin-bottom: 8px;
        }
        .replay-meta {
            font-size: 0.7rem;
            color: #6c86a3;
            display: flex;
            gap: 16px;
        }

        footer {
            margin-top: 60px;
            text-align: center;
            padding: 28px 0 20px;
            border-top: 1px solid #e2edf7;
            font-size: 0.75rem;
            color: #6c86a3;
        }
        .copyright a {
            color: #3b82f6;
            text-decoration: none;
        }

        @media (max-width: 860px) {
            .sidebar {
                width: 100px;
                padding: 24px 12px;
            }
            .logo-area h2 {
                display: none;
            }
            .nav-item span {
                display: none;
            }
            .nav-item i {
                margin: 0 auto;
                font-size: 1.4rem;
            }
            .nav-item {
                justify-content: center;
            }
            .sidebar-footer {
                display: none;
            }
            .main-content {
                padding: 24px 20px;
                max-width: calc(100% - 100px);
            }
        }
        @media (max-width: 640px) {
            .app-wrapper {
                flex-direction: column;
            }
            .sidebar {
                width: 100%;
                height: auto;
                position: relative;
                flex-direction: row;
                padding: 12px 20px;
                border-right: none;
                border-bottom: 1px solid #e2edf7;
            }
            .logo-area h2 {
                display: block;
                font-size: 1.2rem;
            }
            .sidebar-nav {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 8px;
            }
            .nav-item span {
                display: inline;
                font-size: 0.8rem;
            }
            .nav-item {
                padding: 6px 14px;
            }
            .main-content {
                max-width: 100%;
                padding: 24px 16px;
            }
        }
        .ad {
            cursor: pointer;
        }