/* 蘑菇视频 style.css - 完整样式表 */

/* 全局重置与基础样式 */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #6c5ce7;
    --primary-dark: #5a4bd1;
    --accent: #fd79a8;
    --accent-light: #ffe0e6;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a2e;
    --card-bg-light: rgba(255, 255, 255, 0.85);
    --card-bg-dark: rgba(30, 30, 60, 0.85);
    --text-light: #2d3436;
    --text-dark: #e0e0e0;
    --text-muted-light: #636e72;
    --text-muted-dark: #b0b0b0;
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.3);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.2);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font);
    line-height: 1.6;
    background: var(--bg-light);
    color: var(--text-light);
    transition: var(--transition);
    overflow-x: hidden;
}

body.dark-mode {
    background: var(--bg-dark);
    color: var(--text-dark);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

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

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    transition: var(--transition);
}

/* 渐变Banner - 背景动画 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    opacity: 0.08;
    pointer-events: none;
}

body.dark-mode::before {
    opacity: 0.12;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 头部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(1.8);
    -webkit-backdrop-filter: blur(20px) saturate(1.8);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

body.dark-mode header {
    background: rgba(20, 20, 40, 0.7);
    border-bottom-color: rgba(255, 255, 255, 0.05);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.8rem 2rem;
    gap: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links li a {
    color: var(--text-light);
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
}

body.dark-mode .nav-links li a {
    color: var(--text-dark);
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

.nav-links li a:hover::after {
    width: 80%;
}

.nav-links li a:hover {
    color: var(--primary);
    background: rgba(108, 92, 231, 0.08);
}

.nav-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

#darkModeToggle,
#menuToggle {
    font-size: 1.4rem;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(4px);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

#darkModeToggle:hover,
#menuToggle:hover {
    background: rgba(108, 92, 231, 0.15);
    transform: scale(1.05);
}

/* 移动端菜单 */
#menuToggle {
    display: none;
}

/* Hero区域 */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(108,92,231,0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -20%;
    width: 70%;
    height: 70%;
    background: radial-gradient(circle, rgba(253,121,168,0.12) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 10s ease-in-out infinite reverse;
    pointer-events: none;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent), #ffa502);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    animation: fadeUp 1s ease;
}

.hero-content p {
    font-size: clamp(1rem, 3vw, 1.3rem);
    color: var(--text-muted-light);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeUp 1s ease 0.2s both;
}

body.dark-mode .hero-content p {
    color: var(--text-muted-dark);
}

.search-box {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    background: var(--card-bg-light);
    backdrop-filter: blur(12px);
    border-radius: 50px;
    padding: 0.3rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    animation: fadeUp 1s ease 0.4s both;
}

body.dark-mode .search-box {
    background: var(--card-bg-dark);
    border-color: rgba(255, 255, 255, 0.08);
}

.search-box input {
    flex: 1;
    border: none;
    padding: 0.9rem 1.5rem;
    border-radius: 50px;
    font-size: 1rem;
    background: transparent;
    color: var(--text-light);
    outline: none;
}

body.dark-mode .search-box input {
    color: var(--text-dark);
}

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

body.dark-mode .search-box input::placeholder {
    color: var(--text-muted-dark);
}

.search-box button {
    padding: 0.9rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    border: none;
    transition: var(--transition);
}

.search-box button:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4);
}

.hero-banner {
    margin-top: 3rem;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    max-width: 800px;
    width: 100%;
    animation: fadeUp 1s ease 0.6s both;
}

.hero-banner img {
    width: 100%;
    height: auto;
    display: block;
}

/* 通用Section */
.section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
    animation: fadeUp 0.8s ease both;
}

.section:nth-child(even) {
    animation-delay: 0.1s;
}

.section h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 4px;
    margin-top: 0.5rem;
}

.breadcrumb {
    font-size: 0.9rem;
    color: var(--text-muted-light);
    margin-bottom: 1.5rem;
    padding: 0.5rem 0;
}

body.dark-mode .breadcrumb {
    color: var(--text-muted-dark);
}

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

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

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.8rem;
    margin-top: 2rem;
}

.card {
    background: var(--card-bg-light);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

body.dark-mode .card {
    background: var(--card-bg-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: var(--shadow-hover);
    border-color: rgba(108, 92, 231, 0.3);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover img {
    transform: scale(1.03);
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 1rem 1.2rem 0.3rem;
    color: var(--text-light);
}

body.dark-mode .card h3 {
    color: var(--text-dark);
}

.card p {
    font-size: 0.9rem;
    color: var(--text-muted-light);
    padding: 0 1.2rem 0.8rem;
    flex: 1;
}

body.dark-mode .card p {
    color: var(--text-muted-dark);
}

.card-link {
    display: inline-block;
    margin: 0.5rem 1.2rem 1.2rem;
    padding: 0.5rem 1.2rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-radius: 50px;
    font-weight: 500;
    font-size: 0.9rem;
    text-align: center;
    transition: var(--transition);
    align-self: flex-start;
}

.card-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.4);
    color: #fff;
}

/* 排行榜 */
.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

body.dark-mode .ranking-item {
    background: var(--card-bg-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.ranking-item:hover {
    transform: translateX(8px);
    border-color: rgba(108, 92, 231, 0.3);
}

.rank-number {
    font-size: 1.8rem;
    font-weight: 800;
    min-width: 50px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.rank-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.rank-info p {
    font-size: 0.9rem;
    color: var(--text-muted-light);
}

body.dark-mode .rank-info p {
    color: var(--text-muted-dark);
}

.rank-info a {
    display: inline-block;
    margin-top: 0.4rem;
    padding: 0.3rem 1rem;
    background: var(--primary);
    color: #fff;
    border-radius: 50px;
    font-size: 0.8rem;
    transition: var(--transition);
}

.rank-info a:hover {
    background: var(--accent);
    color: #fff;
}

/* 分类网格 */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.2rem 0.8rem;
    background: var(--card-bg-light);
    backdrop-filter: blur(8px);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-light);
    transition: var(--transition);
    text-align: center;
}

body.dark-mode .category-item {
    background: var(--card-bg-dark);
    color: var(--text-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.category-item:hover {
    transform: translateY(-4px);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.3);
}

/* 分类详解内容 */
.section-content {
    margin-top: 2rem;
    line-height: 1.8;
}

.section-content h3 {
    font-size: 1.3rem;
    margin: 1.5rem 0 0.8rem;
    color: var(--primary);
}

body.dark-mode .section-content h3 {
    color: var(--accent);
}

.section-content p {
    margin-bottom: 1rem;
    color: var(--text-muted-light);
}

body.dark-mode .section-content p {
    color: var(--text-muted-dark);
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-top: 2rem;
}

.faq-item {
    background: var(--card-bg-light);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

body.dark-mode .faq-item {
    background: var(--card-bg-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.faq-item:hover {
    border-color: rgba(108, 92, 231, 0.3);
}

.faq-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

body.dark-mode .faq-item h3 {
    color: var(--text-dark);
}

.faq-item p {
    color: var(--text-muted-light);
    line-height: 1.7;
}

body.dark-mode .faq-item p {
    color: var(--text-muted-dark);
}

/* 标签云 */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.tag-cloud a {
    padding: 0.5rem 1.2rem;
    background: var(--card-bg-light);
    backdrop-filter: blur(8px);
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    font-size: 0.9rem;
    color: var(--text-light);
    transition: var(--transition);
}

body.dark-mode .tag-cloud a {
    background: var(--card-bg-dark);
    color: var(--text-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.tag-cloud a:hover {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
}

/* 友情链接 */
.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}

.friend-links a {
    padding: 0.6rem 1.5rem;
    background: var(--card-bg-light);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    transition: var(--transition);
}

body.dark-mode .friend-links a {
    background: var(--card-bg-dark);
    color: var(--text-dark);
    border-color: rgba(255, 255, 255, 0.06);
}

.friend-links a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* 页脚 */
footer {
    background: rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    padding: 3rem 2rem 1.5rem;
    margin-top: 3rem;
}

body.dark-mode footer {
    background: rgba(0, 0, 0, 0.2);
    border-top-color: rgba(255, 255, 255, 0.05);
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer-nav a {
    color: var(--text-muted-light);
    font-size: 0.9rem;
    transition: var(--transition);
}

body.dark-mode .footer-nav a {
    color: var(--text-muted-dark);
}

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

.footer-info {
    text-align: center;
    color: var(--text-muted-light);
    font-size: 0.85rem;
    line-height: 1.8;
}

body.dark-mode .footer-info {
    color: var(--text-muted-dark);
}

/* 返回顶部按钮 */
#backToTop {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--card-bg-light);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    font-size: 1.5rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    transform: translateY(20px);
}

body.dark-mode #backToTop {
    background: var(--card-bg-dark);
    color: var(--accent);
}

#backToTop.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#backToTop:hover {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.3);
}

/* 滚动动画 */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式布局 */
@media (max-width: 1024px) {
    nav {
        padding: 0.8rem 1.5rem;
    }
    .section {
        padding: 3rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--card-bg-light);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.8rem;
        box-shadow: var(--shadow);
        border-bottom: 1px solid var(--glass-border);
        z-index: 999;
    }

    body.dark-mode .nav-links {
        background: rgba(20, 20, 40, 0.95);
    }

    .nav-links.active {
        display: flex;
    }

    #menuToggle {
        display: block;
    }

    .hero {
        padding: 7rem 1.5rem 3rem;
        min-height: 70vh;
    }

    .card-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 1.2rem;
    }

    .ranking-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-nav {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0.6rem 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .hero {
        padding: 6rem 1rem 2rem;
        min-height: 60vh;
    }

    .search-box {
        flex-direction: column;
        border-radius: var(--radius);
        padding: 0.5rem;
    }

    .search-box input {
        border-radius: var(--radius-sm);
        padding: 0.7rem 1rem;
        margin-bottom: 0.5rem;
    }

    .search-box button {
        border-radius: var(--radius-sm);
        width: 100%;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section {
        padding: 2rem 1rem;
    }

    #backToTop {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
        bottom: 1.5rem;
        right: 1.5rem;
    }
}

/* 暗色模式额外调整 */
body.dark-mode .nav-links {
    background: rgba(20, 20, 40, 0.95);
}

body.dark-mode .search-box input {
    color: var(--text-dark);
}

body.dark-mode .card-link {
    color: #fff;
}

body.dark-mode .card-link:hover {
    color: #fff;
}

/* 毛玻璃效果增强 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
    transition: var(--transition);
}

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

/* 选中文本样式 */
::selection {
    background: var(--primary);
    color: #fff;
}

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

/* 打印样式 */
@media print {
    header,
    footer,
    #backToTop,
    .search-box,
    .nav-controls {
        display: none;
    }
    body {
        background: #fff;
        color: #000;
    }
    .section {
        break-inside: avoid;
    }
}