/* ===== 51视频 原创网站样式表 ===== */

/* 颜色变量 */
:root {
    --primary-color: #2D1B69;
    --secondary-color: #FF6B35;
    --accent-color: #00D9FF;
    --bg-color: #0F0F1F;
    --text-color: #E8E8F0;
    --card-bg: #1A1A2E;
    --border-color: #2A2A3E;
    --success-color: #00C853;
    --warning-color: #FFA726;
    --danger-color: #EF5350;
}

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

html, body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, rgba(45, 27, 105, 0.95) 0%, rgba(26, 26, 46, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.1);
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.navbar-brand {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-link:hover {
    transform: scale(1.05);
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

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

.navbar-search {
    flex: 1;
    max-width: 400px;
    display: flex;
    gap: 0.5rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-color);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--accent-color);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.3);
}

.search-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 107, 53, 0.4);
}

.navbar-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--secondary-color), var(--accent-color));
    transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, rgba(45, 27, 105, 0.8) 0%, rgba(0, 217, 255, 0.1) 100%), 
                url('<?php echo HERO_BG_URL; ?>') center/cover;
    background-attachment: fixed;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInDown 0.8s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(232, 232, 240, 0.8);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
}

.btn-secondary:hover {
    background: rgba(0, 217, 255, 0.1);
    transform: translateY(-3px);
}

/* 内容区 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 4rem 0;
    border-bottom: 1px solid var(--border-color);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.section-subtitle {
    font-size: 1.1rem;
    color: rgba(232, 232, 240, 0.7);
    margin-bottom: 3rem;
}

/* 动漫内容卡片 */
.anime-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.anime-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
}

.anime-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 12px 32px rgba(0, 217, 255, 0.2);
}

.anime-thumbnail {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--card-bg));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.anime-thumbnail::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('<?php echo ANIME_BG_URL; ?>') center/cover;
    opacity: 0.5;
}

.play-button {
    width: 60px;
    height: 60px;
    background: rgba(0, 217, 255, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    position: relative;
    z-index: 2;
    transition: all 0.3s ease;
}

.anime-card:hover .play-button {
    background: var(--accent-color);
    transform: scale(1.1);
}

.anime-info {
    padding: 1.5rem;
}

.anime-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.anime-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: rgba(232, 232, 240, 0.6);
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* 社区部分 */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.community-card {
    background: linear-gradient(135deg, var(--card-bg), rgba(0, 217, 255, 0.05));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.community-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.15);
}

.community-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.community-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.community-desc {
    font-size: 0.95rem;
    color: rgba(232, 232, 240, 0.7);
}

/* FAQ 部分 */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    font-weight: 600;
}

.faq-question:hover {
    background: rgba(0, 217, 255, 0.05);
    color: var(--accent-color);
}

.faq-toggle {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    color: rgba(232, 232, 240, 0.8);
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 500px;
}

/* 用户评价 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.review-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.1);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
}

.review-user {
    flex: 1;
}

.review-name {
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.review-time {
    font-size: 0.85rem;
    color: rgba(232, 232, 240, 0.6);
}

.review-rating {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.review-text {
    color: rgba(232, 232, 240, 0.8);
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, rgba(45, 27, 105, 0.95) 0%, rgba(26, 26, 46, 0.95) 100%);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    color: rgba(232, 232, 240, 0.7);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.social-link:hover {
    background: rgba(0, 217, 255, 0.1);
    border-color: var(--accent-color);
}

.footer-subtitle {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(232, 232, 240, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 0.5rem;
}

.footer-contact {
    color: rgba(232, 232, 240, 0.7);
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: rgba(232, 232, 240, 0.6);
    font-size: 0.9rem;
}

.copyright {
    margin-bottom: 0.5rem;
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-container {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .navbar-search {
        order: 3;
        flex-basis: 100%;
        max-width: 100%;
    }
    
    .navbar-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .anime-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .navbar-container {
        padding: 1rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .anime-grid {
        grid-template-columns: 1fr;
    }
}