/* 
 * 四爱传媒 - 主样式表
 * 独特的紫金配色方案，现代响应式设计
 */

/* CSS变量定义 */
:root {
    --primary-color: #6b21a8;
    --primary-light: #9333ea;
    --primary-dark: #4c1d95;
    --accent-color: #fbbf24;
    --accent-light: #fcd34d;
    --accent-dark: #d97706;
    --bg-dark: #0f0a1a;
    --bg-medium: #1a0f2e;
    --bg-light: #2d1b4e;
    --text-primary: #f5f5f5;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --border-color: rgba(147, 51, 234, 0.3);
    --shadow-color: rgba(107, 33, 168, 0.4);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-accent: linear-gradient(135deg, var(--accent-dark), var(--accent-color));
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --container-max: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
}

/* 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", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 容器 */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

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

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: clamp(1.75rem, 5vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }
h4 { font-size: 1.125rem; }

/* ========== 导航栏 ========== */
.site-header {
    background: linear-gradient(180deg, var(--bg-medium), transparent);
    position: relative;
    z-index: 100;
}

.main-nav {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

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

.site-logo {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.nav-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

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

.nav-link.highlight {
    background: var(--gradient-accent);
    color: var(--bg-dark);
    font-weight: 600;
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--gradient-accent);
    color: var(--bg-dark);
    font-weight: 700;
    border-radius: 25px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-color);
    color: var(--bg-dark);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
}

.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    position: relative;
}

.menu-icon::before,
.menu-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    left: 0;
}

.menu-icon::before { top: -8px; }
.menu-icon::after { bottom: -8px; }

/* ========== 英雄视频区域 ========== */
.hero-video-section {
    position: relative;
    background: var(--bg-medium);
    overflow: hidden;
}

.video-wrapper {
    position: relative;
    margin: 0;
}

.video-container {
    position: relative;
    aspect-ratio: 16/9;
    max-height: 70vh;
    overflow: hidden;
}

.video-poster {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-normal);
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
}

.play-icon {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
}

.hero-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-xl) var(--spacing-md);
    background: linear-gradient(transparent, rgba(15, 10, 26, 0.95));
    text-align: center;
}

.hero-tagline {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* 视频模态框 */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.video-modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 900px;
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}

.modal-content video {
    width: 100%;
    border-radius: var(--border-radius);
}

/* ========== 通用区块样式 ========== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-subtitle {
    color: var(--accent-color);
    font-size: 1rem;
    margin-top: var(--spacing-xs);
}

/* ========== 品牌介绍 ========== */
.brand-intro {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-dark);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.intro-text p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.intro-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========== 近期作品 ========== */
.recent-works {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-medium);
}

.works-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.work-card {
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.work-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow-color);
}

.work-media {
    position: relative;
    margin: 0;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.work-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.work-card:hover .work-image {
    transform: scale(1.05);
}

.work-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.work-play-btn:hover {
    opacity: 1;
}

.work-play-btn svg {
    width: 60px;
    height: 60px;
}

.work-info {
    padding: var(--spacing-md);
}

.work-title {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.work-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.work-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.work-rating,
.work-views {
    font-size: 0.875rem;
    color: var(--accent-color);
}

/* ========== 视频分类 ========== */
.video-categories {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-dark);
}

.category-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.category-card {
    position: relative;
    display: block;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 16/10;
}

.category-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.category-card:hover .category-image {
    transform: scale(1.1);
}

.category-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    color: #fff;
}

.category-overlay h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.category-overlay p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========== 影评专栏 ========== */
.movie-review {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-medium);
}

.review-article {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.review-image-wrapper {
    margin: 0;
}

.review-image {
    width: 100%;
    border-radius: var(--border-radius);
}

.review-image-wrapper figcaption {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.review-header h3 {
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.review-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.reviewer-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.reviewer-info {
    display: flex;
    flex-direction: column;
}

.reviewer-name {
    font-weight: 600;
    color: var(--text-primary);
}

.reviewer-title {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.review-meta time {
    margin-left: auto;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.review-body p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.review-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.review-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.rating-label {
    font-weight: 600;
}

.rating-stars .star {
    color: var(--accent-color);
    font-size: 1.25rem;
}

.rating-stars .star.half {
    opacity: 0.5;
}

.rating-score {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* ========== 招聘模块 ========== */
.recruitment-section {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--bg-dark), var(--primary-dark));
}

.recruitment-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.recruitment-image {
    margin: 0;
}

.team-image {
    width: 100%;
    border-radius: var(--border-radius-lg);
}

.recruitment-info h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.recruitment-info > p {
    margin-bottom: var(--spacing-lg);
}

.recruitment-benefits,
.recruitment-requirements {
    margin-bottom: var(--spacing-lg);
}

.recruitment-benefits h4,
.recruitment-requirements h4 {
    color: var(--accent-light);
    margin-bottom: var(--spacing-sm);
}

.benefits-list,
.requirements-list {
    list-style: none;
}

.benefits-list li,
.requirements-list li {
    position: relative;
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.requirements-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-light);
}

.recruitment-cta {
    padding: var(--spacing-md);
    background: rgba(251, 191, 36, 0.1);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

/* ========== 负责任观影 ========== */
.responsible-viewing {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-dark);
}

.responsible-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.responsible-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.responsible-card h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
}

.responsible-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.age-badge {
    margin-top: var(--spacing-md);
}

/* ========== 支付方式 ========== */
.payment-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-medium);
}

.payment-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.payment-method {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.payment-method.featured {
    background: linear-gradient(135deg, var(--primary-dark), var(--bg-light));
    border-color: var(--accent-color);
}

.payment-method h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.payment-method h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.payment-features {
    list-style: none;
    margin-top: var(--spacing-md);
}

.payment-features li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.payment-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

.payment-methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.payment-icon {
    margin-top: var(--spacing-sm);
    max-height: 50px;
    width: auto;
}

.payment-info {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
}

.payment-info h4 {
    margin-bottom: var(--spacing-md);
}

.payment-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.payment-table th,
.payment-table td {
    padding: var(--spacing-sm);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.payment-table th {
    background: var(--bg-medium);
    color: var(--accent-color);
    font-weight: 600;
}

.payment-table tr:hover td {
    background: rgba(147, 51, 234, 0.1);
}

/* ========== 资质认证 ========== */
.license-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-dark);
}

.license-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.license-badge {
    margin: 0 auto;
}

.badge-image {
    max-width: 150px;
}

.license-info h3 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.license-details {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xs) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.license-details dt {
    color: var(--text-muted);
    font-weight: 600;
}

.license-details dd {
    color: var(--text-primary);
}

.compliance-statement {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.compliance-statement h4 {
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

.compliance-statement p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========== 客户支持 ========== */
.support-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-medium);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.support-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.support-card:hover {
    transform: translateY(-5px);
}

.support-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.support-card h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
}

.support-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ========== FAQ ========== */
.faq-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-dark);
}

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

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

.faq-question {
    padding: var(--spacing-md);
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent-color);
    transition: transform var(--transition-fast);
}

.faq-item[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-secondary);
}

.faq-answer p {
    line-height: 1.8;
}

/* ========== 用户评论 ========== */
.reviews-section {
    padding: var(--spacing-xxl) 0;
    background: var(--bg-medium);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

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

.review-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.reviewer-avatar-small {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.reviewer-details {
    display: flex;
    flex-direction: column;
}

.reviewer-details .reviewer-name {
    font-weight: 600;
}

.reviewer-location {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.review-rating-stars {
    margin-left: auto;
}

.review-rating-stars .stars {
    color: var(--accent-color);
    font-size: 1rem;
}

.review-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.review-date {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--bg-dark);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--accent-color);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

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

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

.contact-info {
    font-style: normal;
}

.contact-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.social-links a {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    color: #fff;
}

.legal-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.legal-nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.payment-icons {
    margin-bottom: var(--spacing-md);
}

.payment-icons img {
    margin: 0 auto;
    opacity: 0.8;
}

.license-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.license-info p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

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

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        background: var(--bg-medium);
        padding: var(--spacing-sm);
        border-radius: var(--border-radius);
        margin-top: var(--spacing-sm);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        padding: var(--spacing-sm);
    }
    
    .cta-button {
        width: 100%;
        text-align: center;
        margin-top: var(--spacing-sm);
    }
    
    .hero-caption {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .play-icon {
        width: 60px;
        height: 60px;
    }
    
    .intro-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .stat-item {
        padding: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .category-cards {
        grid-template-columns: 1fr;
    }
    
    .review-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .review-meta time {
        margin-left: 0;
    }
    
    .payment-table {
        font-size: 0.8rem;
    }
    
    .payment-table th,
    .payment-table td {
        padding: var(--spacing-xs);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 769px) {
    .intro-content {
        grid-template-columns: 2fr 1fr;
    }
    
    .intro-stats {
        grid-template-columns: 1fr 1fr;
    }
    
    .works-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .work-card.featured {
        grid-column: span 2;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    .work-card.featured .work-info {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .review-article {
        grid-template-columns: 1fr 2fr;
    }
    
    .recruitment-content {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .license-content {
        grid-template-columns: auto 1fr;
    }
    
    .license-badge {
        margin: 0;
    }
}

@media (min-width: 1024px) {
    .works-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
    
    .work-card.featured {
        grid-column: 1;
        grid-row: span 2;
        display: block;
    }
}

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

.section-header,
.work-card,
.category-card,
.support-card,
.review-card {
    animation: fadeInUp 0.6s ease forwards;
}

/* ========== 打印样式 ========== */
@media print {
    .site-header,
    .site-footer,
    .video-modal,
    .play-button,
    .cta-button {
        display: none;
    }
    
    body {
        background: #fff;
        color: #000;
    }
    
    .container {
        max-width: 100%;
    }
}