/* ==================== 全局基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 */
    --primary: #ff4757;
    --primary-light: #ff6b7a;
    --primary-dark: #e63946;
    
    /* 主题色 */
    --color-hotsearch: #ff4757;
    --color-tv: #3498db;
    --color-movie: #9b59b6;
    --color-anime: #2ecc71;
    
    /* 背景色 */
    --bg: #f5f7fa;
    --bg-white: #ffffff;
    --bg-gray: #f0f2f5;
    --bg-hover: #f8f9fa;
    
    /* 文字色 */
    --text-primary: #1a1a2e;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;
    --text-white: #ffffff;
    
    /* 边框 */
    --border: #e8eaed;
    --border-light: #f0f0f0;
    
    /* 阴影 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 16px;
    
    /* 过渡 */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", 
                 "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", 
                 Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==================== 顶部导航栏 ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(135deg, #ff4757 0%, #ff6b7a 50%, #ff8585 100%);
    color: var(--text-white);
    box-shadow: 0 2px 12px rgba(255, 71, 87, 0.3);
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

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

.logo-icon {
    font-size: 32px;
    animation: fireShake 2s ease-in-out infinite;
}

@keyframes fireShake {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #fff 0%, #ffe0e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.realtime-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    position: relative;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: #4ade80;
    animation: pulse 1.5s ease-out infinite;
}

@keyframes pulse {
    0% { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(2.5); }
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.update-time {
    font-size: 13px;
    opacity: 0.9;
    white-space: nowrap;
}

.refresh-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.refresh-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.refresh-btn:active {
    transform: translateY(0);
}

.refresh-btn svg {
    transition: transform 0.5s ease;
}

.refresh-btn.loading svg {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==================== 标签切换 ==================== */
.tabs-container {
    position: sticky;
    top: 65px;
    z-index: 99;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
}

.tabs {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab[data-category="tv"].active {
    color: var(--color-tv);
    border-bottom-color: var(--color-tv);
}

.tab[data-category="movie"].active {
    color: var(--color-movie);
    border-bottom-color: var(--color-movie);
}

.tab[data-category="anime"].active {
    color: var(--color-anime);
    border-bottom-color: var(--color-anime);
}

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

.tab-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 20px;
    padding: 0 6px;
    background: var(--bg-gray);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    transition: var(--transition);
}

.tab.active .tab-count {
    background: var(--primary);
    color: var(--text-white);
}

.tab[data-category="tv"].active .tab-count {
    background: var(--color-tv);
}

.tab[data-category="movie"].active .tab-count {
    background: var(--color-movie);
}

.tab[data-category="anime"].active .tab-count {
    background: var(--color-anime);
}

/* 进度条 */
.progress-bar {
    height: 2px;
    background: var(--border-light);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transition: width 1s linear;
}

/* ==================== 主内容区 ==================== */
.main-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

/* 搜索栏 */
.search-bar {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    min-width: 280px;
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0 14px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.search-input-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 71, 87, 0.1);
}

.search-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    padding: 12px 10px;
    border: none;
    outline: none;
    font-size: 14px;
    color: var(--text-primary);
    background: transparent;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-clear {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-gray);
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1;
    transition: var(--transition);
}

.search-clear:hover {
    background: var(--text-muted);
    color: var(--text-white);
}

.view-toggle {
    display: flex;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.view-btn {
    padding: 10px 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.view-btn:hover {
    background: var(--bg-hover);
}

.view-btn.active {
    background: var(--primary);
    color: var(--text-white);
}

/* 榜单容器 */
.rank-container {
    min-height: 500px;
}

/* 加载动画 */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}

.loading p {
    font-size: 14px;
}

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: var(--text-muted);
    text-align: center;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* ==================== 榜单列表视图 ==================== */
.rank-list {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.rank-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.rank-item:last-child {
    border-bottom: none;
}

.rank-item:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.rank-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: transparent;
    transition: var(--transition);
}

.rank-item:hover::before {
    background: var(--primary);
}

/* 排名数字 */
.rank-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    flex-shrink: 0;
    background: var(--bg-gray);
    color: var(--text-secondary);
    transition: var(--transition);
}

.rank-item:nth-child(1) .rank-num {
    background: linear-gradient(135deg, #ffd700, #ffb700);
    color: #fff;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.4);
}

.rank-item:nth-child(2) .rank-num {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    color: #fff;
    box-shadow: 0 2px 8px rgba(192, 192, 192, 0.4);
}

.rank-item:nth-child(3) .rank-num {
    background: linear-gradient(135deg, #cd7f32, #b87333);
    color: #fff;
    box-shadow: 0 2px 8px rgba(205, 127, 50, 0.4);
}

/* 排名变化徽章 */
.rank-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.badge-up {
    color: #f44336;
    animation: upDown 1s ease-in-out infinite;
}

.badge-down {
    color: #4caf50;
}

.badge-same {
    color: var(--text-muted);
    font-size: 10px;
}

.badge-new {
    background: #ff4757;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    animation: badgeFlash 1s ease-in-out infinite;
}

.badge-hot {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    animation: badgeFlash 0.8s ease-in-out infinite;
}

@keyframes badgeFlash {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

@keyframes upDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* 标题区 */
.rank-content {
    flex: 1;
    min-width: 0;
}

.rank-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: var(--transition);
    margin-bottom: 4px;
}

.rank-item:hover .rank-title {
    color: var(--primary);
}

.rank-item[data-category="tv"]:hover .rank-title {
    color: var(--color-tv);
}

.rank-item[data-category="movie"]:hover .rank-title {
    color: var(--color-movie);
}

.rank-item[data-category="anime"]:hover .rank-title {
    color: var(--color-anime);
}

.rank-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

/* 热度条 */
.heat-bar {
    flex: 1;
    max-width: 200px;
    height: 4px;
    background: var(--bg-gray);
    border-radius: 2px;
    overflow: hidden;
}

.heat-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
    transition: width 0.6s ease;
}

.rank-item[data-category="tv"] .heat-fill {
    background: linear-gradient(90deg, var(--color-tv), #5dade2);
}

.rank-item[data-category="movie"] .heat-fill {
    background: linear-gradient(90deg, var(--color-movie), #bb8fce);
}

.rank-item[data-category="anime"] .heat-fill {
    background: linear-gradient(90deg, var(--color-anime), #58d68d);
}

/* 热度值 */
.heat-value {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    flex-shrink: 0;
    min-width: 80px;
    justify-content: flex-end;
}

.rank-item[data-category="tv"] .heat-value {
    color: var(--color-tv);
}

.rank-item[data-category="movie"] .heat-value {
    color: var(--color-movie);
}

.rank-item[data-category="anime"] .heat-value {
    color: var(--color-anime);
}

.heat-icon {
    font-size: 12px;
}

/* 搜索链接图标 */
.rank-action {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--text-muted);
    transition: var(--transition);
    flex-shrink: 0;
    opacity: 0;
    transform: translateX(-8px);
}

.rank-item:hover .rank-action {
    opacity: 1;
    transform: translateX(0);
}

.rank-action:hover {
    background: var(--bg-gray);
    color: var(--primary);
}

/* ==================== 榜单卡片视图 ==================== */
.rank-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.card-item {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.card-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.card-item[data-category="tv"]::after {
    background: var(--color-tv);
}

.card-item[data-category="movie"]::after {
    background: var(--color-movie);
}

.card-item[data-category="anime"]::after {
    background: var(--color-anime);
}

.card-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-item:hover::after {
    transform: scaleX(1);
}

.card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.card-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 22px;
    font-weight: 700;
    background: var(--bg-gray);
    color: var(--text-secondary);
}

.card-item:nth-child(1) .card-rank,
.card-item[style*="order: 1"] .card-rank {
    background: linear-gradient(135deg, #ffd700, #ffb700);
    color: #fff;
}

.card-item:nth-child(2) .card-rank {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    color: #fff;
}

.card-item:nth-child(3) .card-rank {
    background: linear-gradient(135deg, #cd7f32, #b87333);
    color: #fff;
}

.card-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
    transition: var(--transition);
}

.card-item:hover .card-title {
    color: var(--primary);
}

.card-heat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
}

.card-heat-value {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
}

.card-item[data-category="tv"] .card-heat-value {
    color: var(--color-tv);
}

.card-item[data-category="movie"] .card-heat-value {
    color: var(--color-movie);
}

.card-item[data-category="anime"] .card-heat-value {
    color: var(--color-anime);
}

.card-heat-bar {
    flex: 1;
    height: 6px;
    background: var(--bg-gray);
    border-radius: 3px;
    overflow: hidden;
    margin-left: 12px;
}

.card-heat-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 3px;
}

.card-item[data-category="tv"] .card-heat-fill {
    background: linear-gradient(90deg, var(--color-tv), #5dade2);
}

.card-item[data-category="movie"] .card-heat-fill {
    background: linear-gradient(90deg, var(--color-movie), #bb8fce);
}

.card-item[data-category="anime"] .card-heat-fill {
    background: linear-gradient(90deg, var(--color-anime), #58d68d);
}

/* ==================== 回到顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--bg-white);
    color: var(--text-secondary);
    border-radius: 50%;
    box-shadow: var(--shadow-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 50;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* ==================== 页脚 ==================== */
.footer {
    text-align: center;
    padding: 32px 24px;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border-light);
    background: var(--bg-white);
    margin-top: 40px;
}

/* ==================== Toast提示 ==================== */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--text-primary);
    color: var(--text-white);
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: #27ae60;
}

.toast.error {
    background: #e74c3c;
}

.toast.info {
    background: var(--primary);
}

/* ==================== 滚动条美化 ==================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: #c8ccd0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8aeb4;
}

/* ==================== 列表项入场动画 ==================== */
.rank-item, .card-item {
    animation: fadeInUp 0.3s ease both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== 响应式适配 ==================== */
@media (max-width: 768px) {
    .header-inner {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 12px;
    }

    .logo-text {
        font-size: 20px;
    }

    .update-time {
        display: none;
    }

    .tabs {
        padding: 0 16px;
    }

    .tab {
        padding: 14px 12px;
        font-size: 14px;
    }

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

    .tab-label {
        display: none;
    }

    .tabs-container {
        top: 60px;
    }

    .main-content {
        padding: 16px;
    }

    .search-bar {
        gap: 12px;
    }

    .rank-item {
        padding: 12px 16px;
        gap: 12px;
    }

    .rank-num {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }

    .rank-badge {
        width: 28px;
        height: 28px;
    }

    .rank-title {
        font-size: 14px;
    }

    .heat-bar {
        display: none;
    }

    .heat-value {
        min-width: auto;
        font-size: 12px;
    }

    .rank-action {
        opacity: 1;
        transform: none;
        width: 32px;
        height: 32px;
    }

    .rank-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }

    .card-item {
        padding: 14px;
    }

    .card-rank {
        width: 36px;
        height: 36px;
        font-size: 18px;
        border-radius: 10px;
    }

    .card-title {
        font-size: 14px;
        min-height: 38px;
    }

    .back-to-top {
        width: 42px;
        height: 42px;
        bottom: 20px;
        right: 20px;
    }

    .footer {
        padding: 24px 16px;
    }
}

@media (max-width: 480px) {
    .rank-grid {
        grid-template-columns: 1fr 1fr;
    }
}