/* 荷花影院 - 完整样式表 */
:root {
    --bg: #ffffff;
    --text-main: #1F2937;
    --text-title: #111827;
    --text-sub: #2D3B4F;
    --text-link: #1E40AF;
    --card-bg: #F8FAFC;
    --border-light: #D1D5DB;
    --nav-bg: #FFFFFF;
    --footer-bg: #1E293B;
    --footer-text: #E2E8F0;
    --btn-bg: #1F2937;
    --btn-text: #FFFFFF;
    --hover-bg: #E5E7EB;
    --code-bg: #F3F4F6;
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.35);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
    --accent: #F59E0B;
    --accent-hover: #fbbf24;
    --gradient-main: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
    --gradient-accent: linear-gradient(135deg, #F59E0B, #F97316);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

[data-theme="dark"] {
    --bg: #0F172A;
    --text-main: #E2E8F0;
    --text-title: #FFFFFF;
    --text-sub: #CBD5E1;
    --text-link: #93C5FD;
    --card-bg: #1E293B;
    --border-light: #334155;
    --nav-bg: rgba(15, 23, 42, 0.85);
    --footer-bg: #0B1120;
    --footer-text: #E2E8F0;
    --btn-bg: #E2E8F0;
    --btn-text: #0F172A;
    --hover-bg: #334155;
    --glass-bg: rgba(30, 41, 59, 0.75);
    --glass-border: rgba(51, 65, 85, 0.35);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.7;
    transition: background 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 20%, rgba(245, 158, 11, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(30, 64, 175, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* 导航 */
.navbar {
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
}

.navbar:hover {
    box-shadow: var(--shadow-md);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-title);
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 12px rgba(245, 158, 11, 0.3));
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    position: relative;
    font-size: 0.95rem;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--text-link);
}

.nav-links a:hover::after {
    width: 100%;
}

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

.search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    border-radius: 50px;
    padding: 8px 20px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.search-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
    transform: scale(1.02);
}

.search-box input {
    border: none;
    background: transparent;
    color: var(--text-main);
    outline: none;
    padding: 6px 4px;
    width: 160px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-box input::placeholder {
    color: var(--text-sub);
    opacity: 0.7;
}

.search-box span {
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.search-box span:hover {
    transform: scale(1.2);
}

.dark-toggle, .menu-toggle {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 50px;
    padding: 8px 16px;
    font-size: 0.9rem;
    cursor: pointer;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.dark-toggle:hover, .menu-toggle:hover {
    background: var(--hover-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.dark-toggle:active, .menu-toggle:active {
    transform: translateY(0);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 16px 24px;
    gap: 4px;
    border-top: 1px solid var(--border-light);
    animation: slideDown 0.3s ease;
}

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

.mobile-menu a {
    color: var(--text-main);
    font-weight: 500;
    padding: 12px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    text-decoration: none;
}

.mobile-menu a:hover {
    background: var(--hover-bg);
    padding-left: 16px;
}

/* 面包屑 */
.breadcrumb {
    padding: 20px 0 10px;
    font-size: 0.9rem;
    color: var(--text-sub);
    animation: fadeIn 0.5s ease;
}

.breadcrumb a {
    color: var(--text-link);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--accent);
}

/* Hero */
.hero {
    background: var(--gradient-main);
    color: #F8FAFC;
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    margin: 24px 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    transform: rotate(15deg);
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 50%;
    height: 200%;
    background: radial-gradient(circle, rgba(147, 197, 253, 0.1) 0%, transparent 70%);
    transform: rotate(-15deg);
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: rotate(15deg) translateY(0); }
    50% { transform: rotate(15deg) translateY(-20px); }
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    color: #E2E8F0;
    max-width: 700px;
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    line-height: 1.8;
}

.hero-btn {
    background: var(--gradient-accent);
    color: #0F172A;
    border: none;
    padding: 16px 36px;
    border-radius: 60px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.hero-btn:hover {
    background: linear-gradient(135deg, #fbbf24, #F59E0B);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

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

/* 统计数字 */
.stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin: 40px 0;
}

.stat-item {
    flex: 1;
    min-width: 160px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 28px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-title);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.stat-label {
    color: var(--text-sub);
    margin-top: 10px;
    font-weight: 500;
    font-size: 0.95rem;
}

/* 区块标题 */
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-title);
    margin: 56px 0 28px;
    border-left: 6px solid var(--accent);
    padding-left: 20px;
    position: relative;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 20px;
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* 卡片网格 */
.grid-3, .grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: var(--transition);
    transform-origin: left;
}

.card:hover::before {
    transform: scaleX(1);
}

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

.card h3 {
    color: var(--text-title);
    font-size: 1.3rem;
    margin-bottom: 14px;
    font-weight: 700;
    transition: var(--transition);
}

.card:hover h3 {
    color: var(--accent);
}

.card p {
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.7;
}

.card a {
    color: var(--text-link);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.card a:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* 文章列表 */
.article-item {
    padding: 24px 0;
    border-bottom: 1px solid var(--border-light);
    transition: var(--transition);
    position: relative;
    padding-left: 20px;
}

.article-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 24px;
    bottom: 24px;
    width: 3px;
    background: var(--gradient-accent);
    border-radius: 3px;
    opacity: 0;
    transition: var(--transition);
}

.article-item:hover::before {
    opacity: 1;
}

.article-item:hover {
    padding-left: 30px;
    background: linear-gradient(to right, var(--card-bg), transparent);
}

.article-item h4 {
    font-size: 1.2rem;
    color: var(--text-title);
    margin-bottom: 8px;
    font-weight: 600;
    transition: var(--transition);
}

.article-item:hover h4 {
    color: var(--accent);
}

.article-meta {
    color: var(--text-sub);
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: inline-block;
    background: var(--card-bg);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--border-light);
}

.article-item p {
    color: var(--text-main);
    font-size: 0.95rem;
}

.read-more {
    color: var(--text-link);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    margin-top: 8px;
}

.read-more:hover {
    color: var(--accent);
    transform: translateX(4px);
}

/* FAQ */
.faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.faq-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 20px 24px;
    font-weight: 600;
    color: var(--text-title);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    font-size: 1rem;
}

.faq-question:hover {
    background: var(--hover-bg);
}

.faq-question span {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent);
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
}

.faq-question:hover span {
    transform: rotate(90deg);
    background: var(--accent);
    color: #fff;
}

.faq-answer {
    padding: 0 24px 20px;
    color: var(--text-main);
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
    font-size: 0.95rem;
    line-height: 1.8;
    animation: fadeIn 0.3s ease;
}

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

/* HowTo */
.howto-box {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

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

.howto-box h3 {
    color: var(--text-title);
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.howto-box p {
    color: var(--text-main);
    margin: 12px 0;
    font-size: 0.95rem;
}

.howto-box ol {
    padding-left: 28px;
    color: var(--text-main);
    counter-reset: item;
    list-style: none;
}

.howto-box ol li {
    margin: 16px 0;
    padding: 12px 16px;
    background: var(--bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    counter-increment: item;
    position: relative;
    padding-left: 48px;
}

.howto-box ol li::before {
    content: counter(item);
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--gradient-accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.howto-box ol li:hover {
    transform: translateX(4px);
    border-color: var(--accent);
}

.howto-box strong {
    color: var(--text-title);
}

/* Footer */
footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 56px 0 24px;
    margin-top: 80px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
}

.footer-grid h4 {
    color: #FFFFFF;
    margin-bottom: 20px;
    font-size: 1.1rem;
    font-weight: 600;
    position: relative;
    padding-bottom: 12px;
}

.footer-grid h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
}

.footer-grid a {
    display: block;
    color: var(--footer-text);
    text-decoration: none;
    margin: 10px 0;
    opacity: 0.85;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-grid a:hover {
    color: var(--accent);
    opacity: 1;
    padding-left: 8px;
}

.copyright {
    border-top: 1px solid #334155;
    margin-top: 40px;
    padding-top: 24px;
    text-align: center;
    color: #CBD5E1;
    font-size: 0.85rem;
    line-height: 1.8;
}

/* 返回顶部 */
.to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--btn-bg);
    color: var(--btn-text);
    border: none;
    border-radius: 50px;
    padding: 14px 20px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
    font-size: 0.9rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

.to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--accent);
    color: #fff;
}

/* 滚动动画 */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式 */
@media (max-width: 1024px) {
    .container {
        padding: 0 20px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .stat-num {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-wrap {
        height: 64px;
    }
    
    .nav-links, .search-box {
        display: none;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero {
        padding: 32px 24px;
        border-radius: var(--radius-md);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-btn {
        padding: 14px 28px;
    }
    
    .stats {
        gap: 16px;
    }
    
    .stat-item {
        min-width: 140px;
        padding: 20px 16px;
    }
    
    .stat-num {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
        margin: 40px 0 20px;
    }
    
    .grid-3, .grid-4 {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .card {
        padding: 20px;
    }
    
    .howto-box {
        padding: 24px 20px;
        border-radius: var(--radius-md);
    }
    
    .to-top {
        bottom: 20px;
        right: 20px;
        padding: 12px 16px;
    }
    
    .dark-toggle {
        padding: 8px 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .nav-actions {
        gap: 8px;
    }
    
    .dark-toggle {
        font-size: 0.8rem;
        padding: 8px 10px;
    }
    
    .hero {
        padding: 28px 20px;
    }
    
    .hero h1 {
        font-size: 1.6rem;
    }
    
    .hero p {
        font-size: 0.9rem;
    }
    
    .hero-btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .stats {
        flex-direction: column;
    }
    
    .stat-item {
        min-width: 100%;
    }
    
    .section-title {
        font-size: 1.4rem;
    }
    
    .article-item {
        padding-left: 16px;
    }
    
    .article-item:hover {
        padding-left: 20px;
    }
    
    .faq-question {
        padding: 16px;
        font-size: 0.9rem;
    }
    
    .faq-answer {
        padding: 0 16px 16px;
        font-size: 0.9rem;
    }
    
    .howto-box {
        padding: 20px 16px;
    }
    
    .howto-box ol li {
        padding-left: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (min-width: 769px) {
    .menu-toggle {
        display: none;
    }
    
    .mobile-menu {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .search-box {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
}

/* 打印样式 */
@media print {
    .navbar, .to-top, .hero-btn, .footer-grid, .breadcrumb {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card, .faq-item, .howto-box {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--text-sub), var(--accent));
    border-radius: 5px;
}

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

/* 焦点可见性 */
:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* 选择文本 */
::selection {
    background: var(--accent);
    color: #fff;
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 暗色模式下的微调 */
[data-theme="dark"] .card {
    background: var(--card-bg);
    border-color: var(--border-light);
}

[data-theme="dark"] .card:hover {
    background: var(--card-bg);
}

[data-theme="dark"] .search-box {
    background: var(--card-bg);
}

[data-theme="dark"] .dark-toggle, 
[data-theme="dark"] .menu-toggle {
    background: var(--card-bg);
}

[data-theme="dark"] .hero {
    background: linear-gradient(135deg, #0B1120 0%, #1E293B 50%, #334155 100%);
}

[data-theme="dark"] .stat-item {
    background: var(--glass-bg);
}

/* 毛玻璃效果增强 */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 加载动画 */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 工具类 */
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

/* 卡片悬停效果增强 */
.card {
    transform: translateZ(0);
    will-change: transform;
}

.card:hover {
    transform: translateY(-6px) scale(1.02);
}

/* 链接下划线动画 */
.nav-links a, .footer-grid a, .read-more {
    position: relative;
}

/* 渐变边框 */
.gradient-border {
    border: 2px solid transparent;
    background: linear-gradient(var(--card-bg), var(--card-bg)) padding-box,
                var(--gradient-accent) border-box;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gradient-accent);
    color: #fff;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* 分割线 */
.divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-light), transparent);
    margin: 24px 0;
}

/* 标签 */
.tag {
    display: inline-block;
    padding: 4px 10px;
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-sub);
    margin: 4px;
    transition: var(--transition);
}

.tag:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--hover-bg);
}