/* 体育导航站现代化设计 - 增强版 */
:root {
    /* 主色调 - 专业体育主题 */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #dc2626; /* 红色，体育活力感 */
    --accent: #059669; /* 绿色，成功/收录 */
    --warning: #d97706; /* 橙色，提示/警告 */
    --info: #0891b2; /* 青色，信息 */
    
    /* 背景渐变 */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    --gradient-dark: linear-gradient(135deg, #1e3a8a 0%, #3730a3 100%);
    --gradient-sport: linear-gradient(135deg, #1e40af 0%, #dc2626 100%);
    
    /* 背景色 */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #f1f5f9;
    --bg-hover: #f8fafc;
    
    /* 文字颜色 */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    
    /* 边框与阴影 */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 8px 20px rgba(37, 99, 235, 0.15);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 间距 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
}

/* 重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(220, 38, 38, 0.05) 0%, transparent 20%);
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

a:hover {
    color: var(--primary);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

button {
    cursor: pointer;
}

/* 容器布局 */
.shell {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.shell-narrow {
    max-width: 900px;
}

.page-main {
    padding: var(--space-8) 0 var(--space-16);
}

/* 头部导航 - 重新设计 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    box-shadow: var(--shadow-sm);
    padding: var(--space-2) 0;
}

.header-shell {
    padding: var(--space-3) 0;
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

/* 品牌标识 */
.brand img{
    width:54px !important;
    height:54px !important;
    object-fit:contain;
    background:transparent !important;
    border:none !important;
    box-shadow:none !important;
    padding:0 !important;
    border-radius:0 !important;
}

/* fallback 图标 */
.brand-mark{
    width:54px;
    height:54px;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:26px;
    border-radius:14px;
    background:rgba(37,99,235,0.08);
    color:#2563eb;
}

.brand-mark::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
}

.brand-text strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    background: var(--gradient-sport);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.025em;
}

.brand-text span {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 0.125rem;
}

/* 搜索框 */
.header-search {
    flex: 1;
    max-width: 500px;
    display: flex;
    gap: var(--space-3);
}

.header-search input {
    flex: 1;
    min-width: 0;
    height: 3rem;
    padding: 0 var(--space-6);
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
    background-color: white;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.header-search input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.header-search button {
    height: 3rem;
    padding: 0 var(--space-6);
    border: none;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    box-shadow: var(--shadow-primary);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.header-search button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.header-search button::before {
    content: '🔍';
    font-size: 1rem;
}

/* 主导航 */
.nav-shell {
    margin-top: var(--space-4);
}

.top-nav {
    display: flex;
    gap: var(--space-1);
    overflow-x: auto;
    padding-bottom: var(--space-2);
    scrollbar-width: none;
}

.top-nav::-webkit-scrollbar {
    display: none;
}

.top-nav a {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.top-nav a:hover {
    background-color: var(--primary-light);
    color: var(--primary);
    transform: translateY(-1px);
}

.top-nav a.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

.top-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-full);
}

/* 英雄区域 - 增强设计 */
.hero-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
}

.hero-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.hero-card-main {
    padding: var(--space-8);
    color: white;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero-card-main::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.hero-card-main::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
}

.hero-badge-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    position: relative;
    z-index: 1;
}

.hero-badge {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.hero-badge::before {
    content: '⚽';
    font-size: 0.75rem;
}

.hero-badge-soft {
    background-color: rgba(255, 255, 255, 0.1);
}

.hero-card-main h1 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    position: relative;
    z-index: 1;
    max-width: 90%;
}

.hero-lead {
    font-size: 1.125rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-8);
    position: relative;
    z-index: 1;
    max-width: 85%;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    position: relative;
    z-index: 1;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    position: relative;
    z-index: 1;
    margin-bottom: var(--space-8);
}

.hero-tags a {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    transition: all 0.3s ease;
}

.hero-tags a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    position: relative;
    z-index: 1;
}

.hero-stat {
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    background-color: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all 0.3s ease;
}

.hero-stat:hover {
    background-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

.hero-stat strong {
    display: block;
    font-size: 2.25rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: var(--space-2);
    color: white;
}

.hero-stat span {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

/* 侧边栏卡片 */
.hero-side-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.panel-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.panel-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.panel-head h2 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.panel-head h2::before {
    content: '🏆';
    font-size: 1rem;
}

.panel-head a {
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    transition: all 0.2s ease;
}

.panel-head a:hover {
    color: var(--primary-dark);
    gap: var(--space-2);
}

.panel-head a::after {
    content: '→';
}

.simple-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.simple-list li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) 0;
    border-bottom: 1px dashed var(--border);
    transition: all 0.2s ease;
}

.simple-list li:hover {
    padding-left: var(--space-2);
    border-bottom-color: var(--primary);
}

.simple-list li:last-child {
    border-bottom: none;
}

.simple-list a {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.simple-list a::before {
    content: '•';
    color: var(--primary);
    font-size: 1.5rem;
}

.simple-list a:hover {
    color: var(--primary);
}

.simple-list span {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    background-color: var(--bg-sidebar);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-full);
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.tip-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background-color: var(--bg-sidebar);
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
    transition: all 0.2s ease;
}

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

.tip-item strong {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.tip-item strong::before {
    content: '💡';
    font-size: 0.875rem;
}

.tip-item span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 主内容区域 */
.section-block {
    margin-bottom: var(--space-12);
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--space-8);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--border);
    position: relative;
}

.section-head::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--gradient-primary);
}

.section-head h2 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.section-head h2::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.section-head p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: var(--space-1);
    max-width: 600px;
}

.section-more {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    background-color: var(--primary-light);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.section-more:hover {
    background-color: #dbeafe;
    color: var(--primary-dark);
    transform: translateX(4px);
}

.section-more::after {
    content: '→';
    font-weight: 700;
}

/* 分类网格 */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
}

.category-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover::before {
    opacity: 1;
}

.category-card-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.category-card h3 a {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: inherit;
}

.category-card h3 a::before {
    content: '📁';
    font-size: 1.125rem;
}

.category-card h3 a:hover {
    color: var(--primary);
}

.category-card p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    min-height: 70px;
}

.pill {
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.pill::before {
    content: '🔗';
    font-size: 0.75rem;
}

.category-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.category-card-foot a {
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--space-1);
    transition: all 0.2s ease;
}

.category-card-foot a:hover {
    color: var(--primary-dark);
    gap: var(--space-2);
}

.category-card-foot a::after {
    content: '→';
    font-weight: 700;
}

/* 站点网格 */
.site-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-6);
}

.site-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.site-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.site-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.site-card:hover::before {
    opacity: 1;
}

.site-head {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.site-head img {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius);
    object-fit: cover;
    border: 1px solid var(--border);
    background-color: white;
    padding: 0.25rem;
    transition: all 0.3s ease;
}

.site-card:hover .site-head img {
    transform: scale(1.05);
    border-color: var(--primary);
}

.site-head h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.site-head h3 a:hover {
    color: var(--primary);
}

.site-head span {
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-sidebar);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-full);
    display: inline-block;
}

.site-desc {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    flex-grow: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.site-actions {
    display: flex;
    gap: var(--space-3);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(20, 20);
        opacity: 0;
    }
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--primary);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--primary-light);
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-white {
    background-color: white;
    color: var(--text-primary);
    box-shadow: var(--shadow);
}

.btn-white:hover {
    background-color: var(--bg-body);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-glass {
    background-color: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--primary);
    font-weight: 500;
    transition: all 0.2s ease;
}

.breadcrumb a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.breadcrumb span {
    color: var(--text-light);
}

/* 页面标题区域 */
.page-hero-light {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow);
    margin-bottom: var(--space-8);
    position: relative;
    overflow: hidden;
}

.page-hero-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.page-hero-label {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-sm);
}

.page-hero h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
    line-height: 1.2;
}

.page-hero p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    max-width: 800px;
}

.page-hero-side {
    display: grid;
    gap: var(--space-4);
}

.metric-box {
    background-color: var(--bg-sidebar);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.metric-box:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary);
}

.metric-box strong {
    display: block;
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.metric-box span {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-note-box {
    background-color: var(--primary-light);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border-left: 4px solid var(--primary);
}

.hero-note-box strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.625rem;
    color: var(--primary);
}

.hero-note-box p {
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

/* 详情页面 */
.detail-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.detail-main-card,
.detail-side-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.detail-main-card::before,
.detail-side-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.detail-header {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.detail-header img {
    width: 5rem;
    height: 5rem;
    border-radius: var(--radius-lg);
    object-fit: cover;
    border: 1px solid var(--border);
    background-color: white;
    padding: 0.375rem;
    box-shadow: var(--shadow);
}

.detail-header h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.2;
}

.detail-header p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 800px;
}

.detail-actions {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.content-card {
    background-color: var(--bg-sidebar);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
    border: 1px solid var(--border);
}

.rich-text-block {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.rich-text-block p {
    margin-bottom: var(--space-4);
}

.rich-text-block p:last-child {
    margin-bottom: 0;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.info-row {
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-4);
    border-bottom: 1px dashed var(--border);
}

.info-row:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.info-row strong {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.375rem;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.info-row strong::before {
    content: '📌';
    font-size: 0.75rem;
}

.info-row span,
.info-row a {
    font-size: 0.9375rem;
    color: var(--text-primary);
}

.info-row a {
    color: var(--primary);
    font-weight: 600;
    transition: all 0.2s ease;
}

.info-row a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* 搜索页面 */
.search-card {
    display: flex;
    gap: var(--space-3);
    background-color: var(--bg-card);
    border-radius: var(--radius);
    padding: var(--space-4);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: var(--space-8);
}

.search-card input {
    flex: 1;
    min-width: 0;
    height: 3rem;
    padding: 0 var(--space-6);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    color: var(--text-primary);
    background-color: var(--bg-sidebar);
    transition: all 0.3s ease;
}

.search-card input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    background-color: white;
}

.search-card button {
    height: 3rem;
    padding: 0 var(--space-6);
    white-space: nowrap;
    background: var(--gradient-primary);
    color: white;
    font-weight: 600;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-primary);
    transition: all 0.3s ease;
}

.search-card button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.2);
}

/* 空状态 */
.empty-state {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-12) var(--space-8);
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px dashed var(--border);
    color: var(--text-secondary);
}

.empty-state-center {
    padding: var(--space-16) var(--space-8);
}

.empty-state-icon {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto var(--space-6);
    box-shadow: var(--shadow-primary);
}

.empty-state h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

.empty-state p {
    max-width: 500px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
    font-size: 1rem;
}

.empty-state-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

/* 表单样式 */
.form-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-8);
}

.form-card label {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-card span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.form-card span::after {
    content: '*';
    color: var(--secondary);
    margin-left: 0.125rem;
}

.form-card input,
.form-card select,
.form-card textarea {
    padding: 0.875rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--bg-sidebar);
    font-size: 0.9375rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.form-card input:focus,
.form-card select:focus,
.form-card textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    background-color: white;
}

.form-card textarea {
    resize: vertical;
    min-height: 150px;
    line-height: 1.6;
}

.form-block {
    margin-bottom: var(--space-8);
}

.form-actions {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

/* 警告提示 */
.alert {
    border-radius: var(--radius);
    padding: var(--space-4) var(--space-5);
    margin-bottom: var(--space-8);
    font-size: 0.9375rem;
    line-height: 1.6;
    border-left: 4px solid transparent;
}

.alert-success {
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-left-color: #22c55e;
    color: #166534;
}

.alert-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-left-color: #ef4444;
    color: #991b1b;
}

/* 列表样式 */
.dot-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.dot-list li {
    position: relative;
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
    color: var(--text-secondary);
    line-height: 1.6;
}

.dot-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.625rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gradient-primary);
}

/* 页脚 */
.site-footer {
    margin-top: var(--space-16);
    padding-top: var(--space-12);
    border-top: 1px solid var(--border);
    background-color: var(--bg-card);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-card {
    background-color: transparent;
    padding: 0;
    box-shadow: none;
    border: none;
}

.footer-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--space-3);
}

.footer-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.footer-card p {
    font-size: 0.875rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.footer-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-card li {
    margin-bottom: var(--space-3);
}

.footer-card a {
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.footer-card a::before {
    content: '→';
    font-size: 0.75rem;
    opacity: 0;
    transition: all 0.2s ease;
}

.footer-card a:hover {
    color: var(--primary);
    padding-left: 0.25rem;
}

.footer-card a:hover::before {
    opacity: 1;
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 关于页面特殊样式 */
.about-page {
    .about-mini-list {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-3);
        margin-top: var(--space-4);
    }
    
    .about-mini-list span {
        padding: var(--space-1) var(--space-3);
        background: var(--gradient-primary);
        color: white;
        border-radius: var(--radius-full);
        font-size: 0.75rem;
        font-weight: 600;
    }
    
    .metrics-row {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
        margin-bottom: var(--space-8);
    }
    
    .about-metric {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        padding: var(--space-6);
        text-align: center;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: all 0.3s ease;
    }
    
    .about-metric:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-md);
        border-color: var(--primary);
    }
    
    .about-metric strong {
        display: block;
        font-size: 2.25rem;
        font-weight: 800;
        color: var(--primary);
        margin-bottom: var(--space-1);
        line-height: 1;
    }
    
    .about-metric span {
        font-size: 0.875rem;
        color: var(--text-secondary);
        font-weight: 500;
    }
    
    .about-grid {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: var(--space-8);
        margin-bottom: var(--space-8);
    }
    
    .about-callout {
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        padding: var(--space-8);
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
    }
    
    .about-callout h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin-bottom: var(--space-4);
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: var(--space-2);
    }
    
    .about-callout h2::before {
        content: '🎯';
        font-size: 1.5rem;
    }
    
    .about-callout p {
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: var(--space-6);
    }
    
    .about-feature-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
    
    .detail-info-card {
        background: var(--bg-sidebar);
        border-radius: var(--radius);
        padding: var(--space-6);
        border-left: 4px solid var(--primary);
    }
    
    .detail-info-card h2 {
        font-size: 1.125rem;
        font-weight: 700;
        margin-bottom: var(--space-2);
        color: var(--text-primary);
    }
    
    .detail-info-card p {
        font-size: 0.875rem;
        color: var(--text-secondary);
        line-height: 1.6;
        margin: 0;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-grid,
    .detail-layout,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .site-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .site-grid-compact {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-main {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }
    
    .header-search {
        max-width: 100%;
    }
    
    .hero-card-main h1 {
        font-size: 2rem;
    }
    
    .hero-lead {
        font-size: 1rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-actions,
    .site-actions,
    .detail-actions,
    .form-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn,
    .site-actions .btn,
    .detail-actions .btn,
    .form-actions .btn {
        width: 100%;
    }
    
    .category-grid,
    .site-grid,
    .site-grid-compact,
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
    
    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }
    
    /* 关于页面响应式 */
    .about-page {
        .metrics-row {
            grid-template-columns: repeat(2, 1fr);
        }
        
        .about-grid {
            grid-template-columns: 1fr;
        }
        
        .about-feature-grid {
            grid-template-columns: 1fr;
        }
    }
}

@media (max-width: 480px) {
    .shell {
        padding: 0 var(--space-4);
    }
    
    .hero-card-main,
    .panel-card,
    .site-card,
    .category-card,
    .detail-main-card,
    .detail-side-card,
    .form-card,
    .page-hero-light {
        padding: var(--space-6);
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-card-main h1 {
        font-size: 1.75rem;
    }
    
    .hero-card-main {
        padding: var(--space-6);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    /* 关于页面响应式 */
    .about-page {
        .metrics-row {
            grid-template-columns: 1fr;
        }
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-card,
.site-card,
.panel-card,
.hero-stat {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.2s; }
.category-card:nth-child(3) { animation-delay: 0.3s; }
.category-card:nth-child(4) { animation-delay: 0.4s; }

.site-card:nth-child(1) { animation-delay: 0.1s; }
.site-card:nth-child(2) { animation-delay: 0.2s; }
.site-card:nth-child(3) { animation-delay: 0.3s; }
.site-card:nth-child(4) { animation-delay: 0.4s; }

.hero-stat:nth-child(1) { animation-delay: 0.6s; }
.hero-stat:nth-child(2) { animation-delay: 0.7s; }
.hero-stat:nth-child(3) { animation-delay: 0.8s; }

/* 悬停效果增强 */
.feature-card:hover .feature-icon,
.advantage-card:hover .advantage-icon,
.flow-item:hover .flow-icon {
    transform: scale(1.1) rotate(5deg);
    transition: transform 0.3s ease;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-sidebar);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* 焦点状态 */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}