/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary-color: #ec4899;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --sidebar-width: 300px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-modern: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-info: linear-gradient(135deg, #06b6d4 0%, #22d3ee 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.8;
    color: var(--text-primary);
    background-color: var(--bg-color);
    background-image: 
        radial-gradient(at 40% 20%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
        radial-gradient(at 80% 0%, rgba(236, 72, 153, 0.05) 0px, transparent 50%),
        radial-gradient(at 0% 50%, rgba(6, 182, 212, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
}

/* 左侧树形导航侧边栏 */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--gradient-modern);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1000;
    box-shadow: var(--shadow-xl);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.sidebar-header {
    padding: 35px 25px;
    background: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.sidebar-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.sidebar-header h2 {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sidebar-header p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.85rem;
    margin: 0;
    font-weight: 400;
}

/* 树形导航 */
.tree-nav {
    padding: 15px 0;
}

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

.tree-node {
    margin: 0;
    position: relative;
}

.tree-children {
    list-style: none;
    padding: 0;
    margin: 0;
    display: none;
    padding-left: 20px;
    border-left: 2px solid rgba(255, 255, 255, 0.08);
    margin-left: 20px;
}

.tree-children.expanded {
    display: block;
    animation: slideDown 0.3s ease;
}

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

.tree-node-header {
    padding: 14px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    user-select: none;
    position: relative;
    font-size: 0.92rem;
}

.tree-node-header::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: white;
    border-radius: 0 2px 2px 0;
    transition: height 0.2s ease;
}

.tree-node-header:hover {
    background-color: rgba(255, 255, 255, 0.12);
    padding-left: 25px;
}

.tree-node-header:hover::before {
    height: 60%;
}

.tree-node-header.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.tree-node-header.active::before {
    height: 80%;
}

.tree-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    font-size: 0.65rem;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}

.tree-toggle.rotated {
    transform: rotate(90deg);
}

.tree-toggle.hidden {
    opacity: 0;
    width: 0;
}

.tree-label {
    font-size: 0.92rem;
    font-weight: 500;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tree-node-header a {
    color: white;
    text-decoration: none;
    flex: 1;
}

.tree-node-header a:hover {
    color: rgba(255,255,255,0.8);
}

/* 不同层级的样式 */
.tree-node-header[data-level="central"] {
    font-weight: 700;
    font-size: 1rem;
    background: rgba(255,255,255,0.05);
}

.tree-node-header[data-level="province"] {
    font-weight: 600;
    font-size: 0.95rem;
}

.tree-node-header[data-level="municipal"] {
    font-weight: 500;
    font-size: 0.92rem;
}

.tree-node-header[data-level="district"] {
    font-weight: 500;
    font-size: 0.88rem;
}

.tree-node-header[data-level="township"] {
    font-weight: 400;
    font-size: 0.85rem;
    opacity: 0.9;
}

/* 头部横幅 */
.hero-section {
    background: var(--gradient-modern);
    color: white;
    padding: 80px 40px;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url("data:image/svg+xml,%3Csvg width='70' height='70' viewBox='0 0 70 70' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'%3E%3Cpath d='M70 35c0-17.3-14-31.3-31.3-31.3C21.7 3.7 7.7 17.7 7.7 35s14 31.3 31.3 31.3c17.3 0 31.3-14 31.3-31.3z'/%3E%3C/g%3E%3C/svg%3E");
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-2%, 2%) rotate(1deg); }
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
    text-shadow: 0 4px 8px rgba(0,0,0,0.15);
    animation: fadeInUp 0.8s ease;
}

.hero-section p {
    font-size: 1.25rem;
    opacity: 0.95;
    font-weight: 400;
    animation: fadeInUp 0.8s ease 0.1s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px;
}

/* 主内容区域 */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background-color: transparent;
}

.content-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 25px 50px;
}

/* 介绍部分 */
.intro-section {
    background: var(--card-bg);
    padding: 45px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-modern);
}

.intro-section h2 {
    background: var(--gradient-modern);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 25px;
    font-size: 1.75rem;
    font-weight: 700;
}

.intro-section p {
    margin-bottom: 18px;
    color: var(--text-secondary);
    line-height: 1.9;
}

.intro-section ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
}

.intro-section li {
    padding: 12px 0 12px 28px;
    position: relative;
    color: var(--text-secondary);
    background: rgba(99, 102, 241, 0.03);
    padding-left: 35px;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.intro-section li:hover {
    background: rgba(99, 102, 241, 0.08);
    transform: translateX(4px);
}

.intro-section li::before {
    content: '✓';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(99, 102, 241, 0.1);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

.intro-section li strong {
    color: var(--text-primary);
}

/* 政府机构部分 */
.gov-section {
    background: var(--card-bg);
    padding: 45px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.gov-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-modern);
}

.gov-section h2 {
    background: var(--gradient-modern);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 30px;
    font-size: 1.75rem;
    font-weight: 700;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 机构详情 */
.org-detail {
    margin-bottom: 45px;
    padding-bottom: 45px;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    border-radius: 12px;
    padding: 30px;
    margin: 20px 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.02) 0%, rgba(236, 72, 153, 0.02) 100%);
}

.org-detail:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.04) 0%, rgba(236, 72, 153, 0.04) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.org-detail:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.org-header {
    margin-bottom: 25px;
}

.org-header h3 {
    color: var(--text-primary);
    font-size: 1.6rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
}

.badge:nth-child(2) {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.badge:nth-child(3) {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(245, 87, 108, 0.3);
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    display: inline-block;
    margin-top: 10px;
}

/* 机构信息 */
.org-info h4 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 28px 0 18px 0;
    font-size: 1.15rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.org-info h4::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.org-info p {
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 1.95;
    text-align: justify;
}

.org-info ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 8px;
}

.org-info li {
    padding: 12px 0 12px 28px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.92rem;
    transition: all 0.2s ease;
}

.org-info li:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.03);
    border-radius: 6px;
}

.org-info li::before {
    content: '▸';
    color: var(--primary-color);
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-weight: bold;
}

.org-info li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* 页脚 */
footer {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: white;
    padding: 50px 25px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.02' fill-rule='evenodd'/%3E%3C/svg%3E");
    pointer-events: none;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.footer-section h5 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 600;
    color: white;
}

.footer-section p {
    font-size: 0.9rem;
    opacity: 0.7;
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }
    
    .hero-section h1 {
        font-size: 2.2rem;
    }
    
    .intro-section, .gov-section {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 60px 25px;
    }

    .hero-section h1 {
        font-size: 1.8rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .intro-section, .gov-section {
        padding: 25px;
        border-radius: 12px;
    }
    
    .intro-section ul, .org-info ul {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .org-header h3 {
        font-size: 1.3rem;
    }
}

/* 移动端菜单切换按钮 */
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: var(--gradient-modern);
    color: white;
    border: none;
    padding: 14px 18px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.menu-toggle:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

@media (max-width: 1024px) {
    .menu-toggle {
        display: block;
    }
}

/* 返回首页按钮 */
.back-to-home {
    text-align: center;
    padding: 50px 20px;
}

.btn-back {
    display: inline-block;
    padding: 14px 35px;
    background: var(--gradient-modern);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-back::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.btn-back:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-back:hover::before {
    left: 100%;
}

.btn-back:active {
    transform: translateY(-1px);
}

/* 链接样式 */
a {
    text-decoration: none;
    transition: color 0.2s ease;
}

/* 层级展示图 */
.hierarchy-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin: 35px 0;
    padding: 30px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(217, 70, 239, 0.05));
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.level-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px 35px;
    border-radius: 12px;
    text-align: left;
    min-width: 280px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.level-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.level-item:hover::before {
    transform: translateX(100%);
}

.level-item:hover {
    transform: translateX(8px) scale(1.02);
}

.level-item strong {
    font-size: 1.05rem;
    margin: 0;
    font-weight: 700;
}

.level-item small {
    font-size: 0.8rem;
    opacity: 0.85;
    margin-top: 2px;
}

.level-icon {
    font-size: 1.8rem;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
}

.level-central {
    background: var(--gradient-modern);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.level-province {
    background: linear-gradient(135deg, #8b5cf6, #d946ef);
    color: white;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.level-municipal {
    background: linear-gradient(135deg, #ec4899, #f43f5e);
    color: white;
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.3);
}

.level-district {
    background: var(--gradient-info);
    color: white;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.level-township {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.level-arrow {
    font-size: 1.4rem;
    color: var(--primary-color);
    font-weight: bold;
    opacity: 0.6;
}

/* 省级政府区块样式 */
.province-section {
    border-left: 4px solid var(--secondary-color);
    padding-left: 25px;
    margin: 25px 0;
    background: linear-gradient(90deg, rgba(236, 72, 153, 0.03), transparent);
    padding: 20px 25px;
    border-radius: 0 12px 12px 0;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 卡片悬停效果 */
.card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* 按钮样式增强 */
.btn {
    border-radius: 10px;
    padding: 10px 20px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--gradient-modern);
    border: none;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--gradient-modern);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

/* 动画 */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* 选中状态指示 */
.selected {
    position: relative;
}

.selected::after {
    content: '';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success-color);
}