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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部状态栏 */
.top-status {
    background: #1e293b;
    color: #94a3b8;
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid #334155;
}

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

.status-left {
    display: flex;
    gap: 20px;
    align-items: center;
}

.status-indicator {
    color: #10b981;
    font-weight: 500;
}

.server-info, .update-info {
    color: #64748b;
}

.status-right {
    display: flex;
    gap: 15px;
    align-items: center;
}

.online-users {
    color: #3b82f6;
    font-weight: 500;
}

.status-link {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.status-link:hover {
    color: #3b82f6;
}

/* 主导航 */
.header {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.header-left {
    flex: 0 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-icon {
    position: relative;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    border-radius: 12px;
}

.wave-animation {
    display: flex;
    gap: 3px;
    align-items: center;
}

.wave {
    width: 4px;
    height: 16px;
    background: white;
    border-radius: 2px;
    animation: wave 1.5s ease-in-out infinite;
}

.wave:nth-child(1) {
    animation-delay: 0s;
}

.wave:nth-child(2) {
    animation-delay: 0.2s;
}

.wave:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes wave {
    0%, 100% { height: 16px; }
    50% { height: 28px; }
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-size: 24px;
    font-weight: bold;
    color: #1e293b;
    margin: 0;
}

.brand-subtitle {
    font-size: 12px;
    color: #64748b;
    margin-top: -2px;
}

.main-nav {
    display: flex;
    gap: 20px;
    flex: 1;
    justify-content: center;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    min-width: 80px;
}

.nav-item:hover,
.nav-item.active {
    background: #f1f5f9;
    color: #3b82f6;
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: #3b82f6;
    border-radius: 2px;
}

.nav-icon {
    font-size: 18px;
}

.nav-text {
    font-size: 13px;
    font-weight: 500;
}

.nav-count {
    font-size: 10px;
    color: #64748b;
    background: #e2e8f0;
    padding: 2px 6px;
    border-radius: 8px;
    margin-top: 2px;
}

.nav-item.active .nav-count {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-container {
    position: relative;
}

.search-input {
    width: 320px;
    padding: 12px 50px 12px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 25px;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
}

.search-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: #3b82f6;
    color: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: #2563eb;
    transform: translateY(-50%) scale(1.05);
}

.search-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    margin-top: 5px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 200;
}

.suggestion-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.suggestion-item:hover {
    background: #f1f5f9;
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.notification-btn {
    position: relative;
    background: none;
    border: none;
    color: #64748b;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.notification-btn:hover {
    background: #f1f5f9;
    color: #3b82f6;
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: #ef4444;
    color: white;
    font-size: 10px;
    padding: 2px 5px;
    border-radius: 8px;
    min-width: 16px;
    text-align: center;
}

.user-btn {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

/* 主要内容 */
.main-content {
    min-height: calc(100vh - 140px);
}

/* 英雄横幅 */
.hero-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.banner-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.content-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    margin-bottom: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.badge-icon {
    font-size: 16px;
}

.banner-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 25px;
    line-height: 1.2;
}

.banner-description {
    font-size: 18px;
    margin-bottom: 35px;
    opacity: 0.9;
    line-height: 1.7;
}

.feature-highlights {
    display: flex;
    gap: 20px;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.highlight-icon {
    font-size: 16px;
}

.banner-actions {
    display: flex;
    gap: 15px;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.9);
    color: #3b82f6;
    border: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 13px 28px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.banner-visual {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.video-showcase {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.showcase-screen {
    position: relative;
    aspect-ratio: 16/9;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 15px;
}

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

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-button {
    width: 70px;
    height: 70px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
    background: white;
}

.play-icon {
    font-size: 24px;
    color: #3b82f6;
    margin-left: 3px;
}

.video-info-overlay {
    position: absolute;
    bottom: 15px;
    left: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.video-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
}

.video-meta {
    font-size: 14px;
    opacity: 0.8;
}

.showcase-controls {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 15px;
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.progress-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    width: 35%;
    height: 100%;
    background: white;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.time-display {
    display: flex;
    gap: 5px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.control-buttons {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.control-btn {
    background: none;
    border: none;
    color: white;
    font-size: 16px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.control-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.quality-indicators {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.quality-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.quality-item.active {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.quality-label {
    font-weight: bold;
    font-size: 14px;
}

.quality-desc {
    font-size: 12px;
    opacity: 0.8;
}

/* 平台优势 */
.advantages-section {
    padding: 80px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 18px;
    color: #64748b;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 40px 30px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.1), transparent);
    transition: left 0.5s ease;
}

.advantage-card:hover::before {
    left: 100%;
}

.advantage-card:hover {
    transform: translateY(-5px);
    border-color: #3b82f6;
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.15);
}

.advantage-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.advantage-icon {
    font-size: 48px;
}

.advantage-header h3 {
    font-size: 24px;
    font-weight: bold;
    color: #1e293b;
}

.advantage-content {
    position: relative;
    z-index: 2;
}

.advantage-desc {
    color: #64748b;
    margin-bottom: 30px;
    line-height: 1.7;
    font-size: 16px;
}

.advantage-stats {
    display: flex;
    gap: 30px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: #3b82f6;
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.stat-unit {
    font-size: 20px;
    color: #3b82f6;
}

.stat-label {
    font-size: 14px;
    color: #64748b;
    margin-top: 5px;
}

/* 精品推荐 */
.featured-section {
    padding: 60px 0;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.section-title {
    font-size: 32px;
    font-weight: bold;
    color: #1e293b;
    margin: 0;
}

.section-subtitle {
    font-size: 16px;
    color: #64748b;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.filter-tabs {
    display: flex;
    gap: 10px;
}

.filter-tab {
    padding: 10px 20px;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    font-size: 14px;
}

.filter-tab:hover,
.filter-tab.active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.more-link {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.more-link:hover {
    color: #1d4ed8;
}

.featured-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
}

.featured-main {
    position: relative;
}

.main-poster {
    position: relative;
    aspect-ratio: 16/10;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.main-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.main-poster:hover img {
    transform: scale(1.05);
}

.main-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.main-poster:hover .main-overlay {
    opacity: 1;
}

.play-button-large {
    width: 80px;
    height: 80px;
    background: rgba(59, 130, 246, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.play-button-large:hover {
    background: #3b82f6;
    transform: scale(1.1);
}

.play-button-large .play-icon {
    font-size: 28px;
    color: white;
    margin-left: 3px;
}

.main-info {
    position: absolute;
    bottom: 30px;
    left: 30px;
    right: 30px;
    color: white;
}

.main-badges {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.main-badges span {
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: bold;
}

.badge-4k {
    background: #3b82f6;
}

.badge-exclusive {
    background: #f59e0b;
}

.badge-hot {
    background: #ef4444;
}

.main-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 15px;
}

.main-desc {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
    opacity: 0.9;
}

.main-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    font-size: 14px;
}

.main-meta span {
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.main-actions {
    display: flex;
    gap: 15px;
}

.btn-play, .btn-collect, .btn-share {
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-play {
    background: #3b82f6;
    color: white;
}

.btn-collect, .btn-share {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-play:hover, .btn-collect:hover, .btn-share:hover {
    transform: translateY(-2px);
}

.featured-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.featured-item {
    display: flex;
    gap: 15px;
    background: white;
    border-radius: 15px;
    padding: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.featured-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.item-poster {
    position: relative;
    width: 80px;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

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

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.featured-item:hover .item-overlay {
    opacity: 1;
}

.play-btn-small {
    width: 35px;
    height: 35px;
    background: rgba(59, 130, 246, 0.9);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.play-btn-small:hover {
    background: #3b82f6;
    transform: scale(1.1);
}

.item-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(59, 130, 246, 0.9);
    color: white;
    padding: 3px 6px;
    border-radius: 8px;
    font-size: 10px;
    font-weight: bold;
}

.item-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.item-title {
    font-size: 16px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 8px;
}

.item-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 12px;
    color: #64748b;
}

.item-desc {
    font-size: 13px;
    color: #64748b;
    line-height: 1.4;
}

/* 实时数据监控 */
.monitoring-section {
    padding: 60px 0;
    background: #f8fafc;
}

.monitoring-time {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #64748b;
}

.time-display {
    color: #3b82f6;
    font-weight: 500;
    font-family: 'Courier New', monospace;
}

.auto-refresh {
    background: #10b981;
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.monitor-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.monitor-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.monitor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.monitor-icon {
    font-size: 24px;
}

.monitor-title {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    flex: 1;
    margin-left: 10px;
}

.monitor-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.monitor-status.online {
    background: #10b981;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

.monitor-content {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.monitor-value {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.value-number {
    font-size: 32px;
    font-weight: bold;
    color: #3b82f6;
}

.value-unit {
    font-size: 18px;
    color: #64748b;
}

.value-text {
    font-size: 24px;
    font-weight: bold;
    color: #10b981;
}

.monitor-trend {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
}

.monitor-trend.up {
    color: #10b981;
}

.monitor-trend.stable {
    color: #64748b;
}

.trend-icon {
    font-size: 16px;
}

.monitor-chart {
    display: flex;
    align-items: end;
    gap: 3px;
    height: 40px;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(to top, #3b82f6, #60a5fa);
    border-radius: 2px;
    min-height: 10px;
    animation: chartGrow 1s ease-out;
}

@keyframes chartGrow {
    from { height: 0; }
    to { height: var(--height); }
}

.monitor-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.detail-label {
    color: #64748b;
}

.detail-value {
    color: #1e293b;
    font-weight: 500;
}

.performance-meters {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.meter-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
}

.meter-label {
    width: 40px;
    color: #64748b;
}

.meter-bar {
    flex: 1;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    overflow: hidden;
}

.meter-fill {
    height: 100%;
    background: linear-gradient(to right, #10b981, #34d399);
    border-radius: 3px;
    transition: width 1s ease;
}

.meter-value {
    width: 35px;
    text-align: right;
    color: #1e293b;
    font-weight: 500;
}

.security-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.security-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
}

.security-label {
    color: #64748b;
}

.security-status.valid {
    color: #10b981;
    font-weight: bold;
}

/* 最新更新时间线 */
.updates-timeline {
    padding: 60px 0;
}

.timeline-filters {
    display: flex;
    gap: 10px;
}

.timeline-filter {
    padding: 8px 16px;
    border: 1px solid #e2e8f0;
    background: white;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.timeline-filter:hover,
.timeline-filter.active {
    background: #3b82f6;
    color: white;
    border-color: #3b82f6;
}

.timeline-container {
    position: relative;
    margin-top: 40px;
}

.timeline-line {
    position: absolute;
    left: 60px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #3b82f6, #e2e8f0);
}

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-time {
    width: 50px;
    font-weight: bold;
    color: #3b82f6;
    font-size: 14px;
    text-align: right;
    padding-top: 5px;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #3b82f6;
    position: relative;
    z-index: 2;
    margin-top: 5px;
}

.timeline-dot.new {
    background: #10b981;
    box-shadow: 0 0 0 2px #10b981;
}

.timeline-dot.update {
    background: #3b82f6;
    box-shadow: 0 0 0 2px #3b82f6;
}

.timeline-dot.fix {
    background: #f59e0b;
    box-shadow: 0 0 0 2px #f59e0b;
}

.timeline-dot.feature {
    background: #8b5cf6;
    box-shadow: 0 0 0 2px #8b5cf6;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.timeline-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.timeline-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
}

.timeline-badge.new {
    background: #dcfce7;
    color: #166534;
}

.timeline-badge.update {
    background: #dbeafe;
    color: #1e40af;
}

.timeline-badge.fix {
    background: #fef3c7;
    color: #92400e;
}

.timeline-badge.feature {
    background: #f3e8ff;
    color: #7c3aed;
}

.timeline-title {
    font-size: 18px;
    font-weight: bold;
    color: #1e293b;
    margin: 0;
}

.timeline-desc {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 15px;
}

.timeline-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.tag {
    background: #f1f5f9;
    color: #64748b;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.timeline-stats {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: #64748b;
}

.stat {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 底部 */
.footer {
    background: #1e293b;
    color: #94a3b8;
    padding: 60px 0 30px;
}

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

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo .brand-name {
    color: white;
    font-size: 20px;
    font-weight: bold;
}

.footer-logo .brand-subtitle {
    color: #64748b;
}

.footer-desc {
    margin-bottom: 25px;
    line-height: 1.7;
    font-size: 15px;
}

.footer-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.feature-tag {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.footer-links {
    display: contents;
}

.link-group h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 16px;
}

.link-group ul {
    list-style: none;
}

.link-group ul li {
    margin-bottom: 12px;
}

.link-group ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 14px;
}

.link-group ul li a:hover {
    color: #3b82f6;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-info {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-stats {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #64748b;
}

.footer-status {
    display: flex;
    align-items: center;
    gap: 20px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-text {
    font-size: 14px;
    color: #10b981;
}

.footer-links-bottom {
    display: flex;
    gap: 15px;
}

.footer-links-bottom a {
    color: #64748b;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s ease;
}

.footer-links-bottom a:hover {
    color: #3b82f6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .banner-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .banner-title {
        font-size: 32px;
    }
    
    .main-nav {
        display: none;
    }
    
    .search-input {
        width: 200px;
    }
    
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .monitoring-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .timeline-time {
        width: auto;
        text-align: left;
    }
    
    .timeline-line {
        display: none;
    }
}