/* ===================================
   尤物视频传媒 - 全站样式表
   版本: 2.0.0
   更新日期: 2026-02-04
   =================================== */

/* CSS变量定义 */
:root {
    --primary-color: #e63946;
    --primary-dark: #c1121f;
    --secondary-color: #ffd700;
    --accent-color: #ff6b6b;
    --bg-dark: #0d0d0d;
    --bg-darker: #050505;
    --bg-card: #1a1a1a;
    --bg-gradient: linear-gradient(135deg, #1a0a2e 0%, #16213e 50%, #0f3460 100%);
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: #333333;
    --shadow-light: 0 4px 15px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 10px 40px rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --max-width: 1400px;
    --header-height: 70px;
}

/* 基础重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 链接样式 */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* 图片响应式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 列表重置 */
ul, ol {
    list-style: none;
}

/* ===================================
   头部导航
   =================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    height: var(--header-height);
}

.main-nav {
    height: 100%;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.site-logo {
    height: 45px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover {
    background: rgba(230, 57, 70, 0.15);
    color: var(--primary-color);
}

.nav-link.active {
    background: var(--primary-color);
    color: #fff;
}

.nav-link.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    font-weight: 600;
}

.nav-link.highlight:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.4);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.menu-icon {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    position: relative;
    transition: var(--transition-fast);
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.menu-icon::before { top: -9px; }
.menu-icon::after { bottom: -9px; }

/* ===================================
   主内容区域
   =================================== */
.main-content {
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* 面包屑导航 */
.breadcrumb {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 24px;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: '›';
    margin-left: 8px;
    color: var(--text-muted);
}

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

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

.breadcrumb [aria-current="page"] {
    color: var(--text-primary);
    font-weight: 500;
}

/* ===================================
   首页Hero区域
   =================================== */
.hero-section {
    position: relative;
    height: 85vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.9) 0%,
        rgba(0, 0, 0, 0.7) 40%,
        rgba(0, 0, 0, 0.4) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-content h1 span {
    color: var(--primary-color);
}

.hero-content .hero-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(230, 57, 70, 0.5);
    color: #fff;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--primary-color);
    color: #fff;
}

/* ===================================
   视频栏目区域
   =================================== */
.video-categories {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    position: relative;
    padding-left: 20px;
}

.section-header h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 70%;
    background: var(--primary-color);
    border-radius: 3px;
}

.view-all {
    color: var(--text-secondary);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.view-all:hover {
    color: var(--primary-color);
}

/* 视频网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
}

.video-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--primary-color);
}

.video-card figure {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.video-card figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.video-card:hover figure img {
    transform: scale(1.08);
}

.video-card h3 {
    padding: 16px 16px 8px;
    font-size: 1.1rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.video-card p {
    padding: 0 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.video-card .rating {
    display: block;
    padding: 12px 16px 16px;
    font-size: 0.85rem;
    color: var(--secondary-color);
}

/* ===================================
   栏目内页样式
   =================================== */
.category-page {
    background: var(--bg-darker);
}

.category-hero {
    position: relative;
    margin-bottom: 50px;
}

.category-hero .hero-image {
    height: 400px;
    overflow: hidden;
}

.category-hero .hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.6);
}

.category-hero .hero-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 60px 24px 40px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    max-width: var(--max-width);
    margin: 0 auto;
}

.category-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.category-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    line-height: 1.8;
}

/* 视频播放器区域 */
.video-player-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 60px;
}

.video-player-section h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    font-weight: 700;
}

.main-player {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.main-player video {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
}

.main-player figcaption {
    padding: 25px;
}

.main-player figcaption h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.main-player figcaption p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 内容详情区域 */
.content-detail {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 60px;
}

.content-detail h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    font-weight: 700;
}

.detail-content {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 40px;
    border: 1px solid var(--border-color);
}

.detail-content p {
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 25px;
    text-align: justify;
}

.detail-content h3 {
    font-size: 1.3rem;
    margin: 35px 0 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.content-image {
    margin: 30px 0;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.content-image img {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
}

.content-image figcaption {
    padding: 12px;
    background: rgba(0, 0, 0, 0.5);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

.feature-list {
    margin: 20px 0;
    padding-left: 20px;
}

.feature-list li {
    position: relative;
    padding: 10px 0 10px 25px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.feature-list li strong {
    color: var(--text-primary);
}

/* 相关视频 */
.related-videos {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px 80px;
}

.related-videos h2 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    font-weight: 700;
}

/* ===================================
   APP下载页面
   =================================== */
.app-download-page {
    background: var(--bg-gradient);
}

.app-hero {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.app-hero-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 15px;
}

.app-tagline {
    font-size: 1.4rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-weight: 500;
}

.app-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 35px;
}

.download-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px 28px;
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    min-width: 180px;
}

.android-btn {
    background: linear-gradient(135deg, #3ddc84, #00a86b);
    color: #fff;
}

.ios-btn {
    background: linear-gradient(135deg, #333, #000);
    color: #fff;
    border: 1px solid #444;
}

.download-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-heavy);
    color: #fff;
}

.btn-icon {
    font-size: 2rem;
}

.btn-text {
    display: flex;
    flex-direction: column;
}

.btn-text small {
    font-size: 0.8rem;
    opacity: 0.8;
}

.btn-text strong {
    font-size: 1.1rem;
}

.qr-code-section {
    text-align: center;
}

.qr-code {
    display: inline-block;
    background: #fff;
    padding: 15px;
    border-radius: var(--border-radius);
}

.qr-code img {
    margin: 0 auto;
}

.qr-code figcaption {
    margin-top: 12px;
    font-size: 0.9rem;
    color: #333;
}

.app-preview {
    display: flex;
    justify-content: center;
}

.app-preview img {
    max-height: 550px;
    border-radius: 30px;
    box-shadow: var(--shadow-heavy);
}

/* APP功能特色 */
.app-features {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
    background: rgba(0, 0, 0, 0.3);
}

.app-features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    padding: 35px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* APP截图展示 */
.app-screenshots {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.app-screenshots h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.screenshots-slider {
    display: flex;
    gap: 25px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
}

.screenshot {
    flex-shrink: 0;
    scroll-snap-align: center;
    text-align: center;
}

.screenshot img {
    border-radius: 20px;
    box-shadow: var(--shadow-light);
}

.screenshot figcaption {
    margin-top: 15px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* 下载指南 */
.download-guide {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
    background: rgba(0, 0, 0, 0.3);
}

.download-guide h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.guide-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.guide-section {
    background: var(--bg-card);
    padding: 35px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.guide-section h3 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    font-weight: 600;
    color: var(--primary-color);
}

.guide-steps {
    counter-reset: step;
}

.guide-steps li {
    position: relative;
    padding-left: 50px;
    margin-bottom: 25px;
}

.guide-steps li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 35px;
    height: 35px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.guide-steps li strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1.05rem;
}

.guide-steps li p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* APP统计数据 */
.app-stats {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.app-stats h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* 用户评价 */
.user-reviews {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
    background: rgba(0, 0, 0, 0.3);
}

.user-reviews h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.review-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.reviewer-name {
    font-weight: 600;
    font-size: 1.05rem;
}

.review-rating {
    color: var(--secondary-color);
}

.review-content {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 15px;
}

.review-footer time {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* FAQ区域 */
.faq-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.faq-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    margin-bottom: 15px;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 25px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.faq-item summary:hover {
    background: rgba(230, 57, 70, 0.1);
}

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-color);
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item p {
    padding: 0 25px 20px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   公司介绍区域
   =================================== */
.company-intro {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
}

.company-intro h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.intro-text p {
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 20px;
    text-align: justify;
}

.intro-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
}

/* 团队展示 */
.team-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
}

.team-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-member {
    text-align: center;
    padding: 30px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.team-member:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.team-member figure {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
}

.team-member figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-member h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.team-member .role {
    color: var(--primary-color);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.team-member p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 演员展示 */
.actresses-section {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 80px 24px;
    background: rgba(0, 0, 0, 0.3);
}

.actresses-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
    font-weight: 700;
}

.actresses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.actress-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 3/4;
}

.actress-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.actress-card:hover img {
    transform: scale(1.1);
}

.actress-card figcaption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
}

.actress-card h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.actress-card span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ===================================
   页脚
   =================================== */
.site-footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-color);
}

.footer-main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-nav {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-column ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 25px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.license-badges {
    display: flex;
    gap: 15px;
}

.license-badges img {
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.license-badges img:hover {
    opacity: 1;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 1024px) {
    .hero-section {
        height: 70vh;
        min-height: 500px;
    }
    
    .app-hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .app-hero-content {
        order: 1;
    }
    
    .app-preview {
        order: 2;
    }
    
    .download-buttons {
        justify-content: center;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .guide-tabs {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(13, 13, 13, 0.98);
        flex-direction: column;
        padding: 30px;
        gap: 10px;
        transform: translateX(100%);
        transition: transform var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
        padding: 15px;
        font-size: 1.1rem;
    }
    
    .hero-section {
        height: auto;
        min-height: auto;
        padding: 100px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .video-categories {
        padding: 50px 16px;
    }
    
    .section-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .video-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .category-hero .hero-image {
        height: 250px;
    }
    
    .category-hero h1 {
        font-size: 1.8rem;
    }
    
    .detail-content {
        padding: 25px;
    }
    
    .app-hero {
        padding: 40px 16px;
    }
    
    .app-hero-content h1 {
        font-size: 2rem;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .footer-nav {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .actresses-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

.btn-primary:hover {
    animation: pulse 0.5s ease-in-out;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 5px;
}

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

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

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

/* 打印样式 */
@media print {
    .site-header,
    .mobile-menu-toggle,
    .hero-buttons,
    .download-buttons,
    video {
        display: none !important;
    }
    
    body {
        background: #fff;
        color: #000;
    }
    
    .main-content {
        padding-top: 0;
    }
}