@import url('https://fonts.font.im/css2?family=Noto+Serif+SC:wght@400;500;600;700&display=swap');

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

:root {
    /* 主题色 */
    --primary-color: #E48E7E;
    --secondary-color: #9D8AA8;
    --accent-color: #E48E8E;
    --background-gradient: linear-gradient(135deg, 
        rgba(228, 181, 163, 0.95) 0%, 
        rgba(157, 138, 168, 0.95) 100%
    );
    --card-bg: rgba(255, 255, 255, 0.95);
    
    /* 文字颜色 */
    --text-primary: #2D3748;
    --text-secondary: #4A5568;
    --text-muted: #718096;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

body {
    font-family: 'Noto Serif SC', serif;
    background: var(--background-gradient);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.hot-search-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 0 auto;
    max-width: 100%;
}

.hot-search-container {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    height: 500px;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hot-search-container:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), 0 10px 20px rgba(0, 0, 0, 0.1);
}

.platform-header {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.platform-icon {
    font-size: 1.2rem;
}

.hot-search-list {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) transparent;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    transform: translateZ(0);
    will-change: scroll-position;
}

/* 自定义滚动条样式 - Webkit浏览器 */
.hot-search-list::-webkit-scrollbar {
    width: 6px;
}

.hot-search-list::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 3px;
}

.hot-search-list::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 3px;
    opacity: 0.6;
}

.hot-search-list::-webkit-scrollbar-thumb:hover {
    background-color: var(--accent-color);
}

/* 确保内容不会太靠近滚动条 */
.hot-search-item:last-child {
    margin-bottom: 0.5rem;
}

/* 添加渐变遮罩效果 */
.hot-search-list::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(to top, var(--card-bg) 0%, transparent 100%);
    pointer-events: none;
    opacity: 0.8;
    margin-bottom: 2.6rem; /* 为更新时间留出空间 */
}

.hot-search-item {
    display: flex;
    align-items: center;
    padding: 0.8rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease-out;
    will-change: transform, opacity;
}

.hot-search-item:hover {
    background: rgba(228, 142, 126, 0.08);
    transform: translateX(4px) !important;
}

.hot-search-rank {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    width: 2rem;
    text-align: center;
}

.hot-search-rank.top-3 {
    color: var(--accent-color);
    font-size: 1.3rem;
}

.hot-search-content {
    flex: 1;
    margin-left: 0.8rem;
}

.hot-search-title {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.hot-search-heat {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.update-time {
    text-align: center;
    padding: 0.8rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.8);
}

@media (max-width: 1200px) {
    .hot-search-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hot-search-container {
        height: 500px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    
    .hot-search-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hot-search-container {
        height: 400px;
    }
    
    .platform-header {
        padding: 0.8rem;
        font-size: 1rem;
    }
    
    .hot-search-item {
        padding: 0.6rem;
    }
    
    .hot-search-title {
        font-size: 0.9rem;
    }
    
    .hot-search-heat {
        font-size: 0.8rem;
    }
}

/* 加载状态和错误状态样式 */
.loading, .error {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.95rem;
    text-align: center;
    padding: 1rem;
}

.loading {
    position: relative;
    padding-left: 24px;
}

.loading::before {
    content: '';
    position: absolute;
    left: 0;
    width: 16px;
    height: 16px;
    border: 2px solid var(--primary-color);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.error {
    cursor: pointer;
    color: var(--accent-color);
    transition: opacity 0.3s ease;
}

.error:hover {
    opacity: 0.8;
}

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