/* ============================================
   哔哩禁漫 - 库里南风格修车改装视频社区
   域名: aay626293.cn
   配色: 暗金黑 Cullinan Luxury Theme
   ============================================ */

/* === 基础重置与变量 === */
:root {
    --gold-primary: #C9A84C;
    --gold-light: #E8D48B;
    --gold-dark: #8B7332;
    --black-deep: #0A0A0A;
    --black-card: #141414;
    --black-surface: #1A1A1A;
    --gray-text: #B8B8B8;
    --gray-light: #888888;
    --white: #F5F5F0;
    --accent-blue: #2C5F8A;
    --accent-red: #8B2020;
}

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

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--black-deep);
    color: var(--gray-text);
    line-height: 1.8;
    overflow-x: hidden;
}

a { color: var(--gold-primary); text-decoration: none; transition: color 0.3s; }
a:hover { color: var(--gold-light); }

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

.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }

/* === 顶部导航 === */
.site-header {
    background: linear-gradient(180deg, rgba(10,10,10,0.98) 0%, rgba(20,20,20,0.95) 100%);
    border-bottom: 1px solid rgba(201,168,76,0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    max-width: 1280px;
    margin: 0 auto;
}

.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 48px; width: 48px; border-radius: 6px; }
.site-logo span {
    font-size: 22px;
    font-weight: 700;
    color: var(--gold-primary);
    letter-spacing: 2px;
}

.main-nav { display: flex; gap: 6px; }
.main-nav a {
    color: var(--gray-text);
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.3s;
    white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
    color: var(--gold-primary);
    background: rgba(201,168,76,0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid var(--gold-primary);
    color: var(--gold-primary);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 18px;
}

/* === 搜索框 === */
.search-bar {
    background: var(--black-card);
    border-bottom: 1px solid rgba(201,168,76,0.1);
    padding: 10px 0;
}

.search-form {
    display: flex;
    max-width: 680px;
    margin: 0 auto;
    gap: 8px;
    padding: 0 20px;
}

.search-form input {
    flex: 1;
    background: var(--black-surface);
    border: 1px solid rgba(201,168,76,0.3);
    color: var(--white);
    padding: 10px 18px;
    border-radius: 25px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.search-form input:focus { border-color: var(--gold-primary); }
.search-form input::placeholder { color: var(--gray-light); }

.search-form button {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    color: var(--black-deep);
    border: none;
    padding: 10px 28px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: transform 0.2s;
}

.search-form button:hover { transform: scale(1.05); }

/* === Banner区域 === */
.hero-banner {
    position: relative;
    height: 520px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-banner img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.45);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 42px;
    color: var(--gold-primary);
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.8);
    letter-spacing: 4px;
}

.hero-content p {
    font-size: 18px;
    color: var(--white);
    margin-bottom: 28px;
    line-height: 1.8;
    text-shadow: 0 1px 10px rgba(0,0,0,0.6);
}

.hero-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn-gold {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    color: var(--black-deep);
    padding: 14px 36px;
    border-radius: 30px;
    font-weight: 700;
    font-size: 16px;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(201,168,76,0.4); color: var(--black-deep); }

.btn-outline {
    border: 2px solid var(--gold-primary);
    color: var(--gold-primary);
    padding: 12px 34px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
}
.btn-outline:hover { background: var(--gold-primary); color: var(--black-deep); }

/* === 面包屑 === */
.breadcrumb {
    padding: 14px 0;
    font-size: 13px;
    color: var(--gray-light);
    border-bottom: 1px solid rgba(201,168,76,0.08);
}
.breadcrumb a { color: var(--gold-primary); }

/* === 通用区块 === */
.section {
    padding: 60px 0;
    border-bottom: 1px solid rgba(201,168,76,0.08);
}

.section-title {
    text-align: center;
    margin-bottom: 45px;
}

.section-title h2 {
    font-size: 32px;
    color: var(--gold-primary);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.section-title p {
    font-size: 16px;
    color: var(--gray-light);
    max-width: 600px;
    margin: 0 auto;
}

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

.video-card {
    background: var(--black-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(201,168,76,0.1);
    transition: all 0.4s;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-6px);
    border-color: var(--gold-primary);
    box-shadow: 0 12px 40px rgba(201,168,76,0.15);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
    background: var(--black-surface);
}

.video-thumb img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 60px;
    height: 60px;
    background: rgba(201,168,76,0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    z-index: 3;
}

.play-btn::after {
    content: "";
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent var(--black-deep);
    margin-left: 4px;
}

.video-card:hover .play-btn { transform: translate(-50%, -50%) scale(1); }

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.8);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    z-index: 3;
}

.video-info { padding: 16px; }

.video-info h3 {
    font-size: 15px;
    color: var(--white);
    margin-bottom: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--gray-light);
}

.video-tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.video-tags span {
    background: rgba(201,168,76,0.1);
    color: var(--gold-primary);
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
}

/* === 分类标签 === */
.tab-nav {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 35px;
    flex-wrap: wrap;
}

.tab-nav a, .tab-nav span {
    padding: 8px 22px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid rgba(201,168,76,0.2);
    color: var(--gray-text);
    background: transparent;
}

.tab-nav a:hover, .tab-nav span:hover,
.tab-nav a.active, .tab-nav span.active {
    background: var(--gold-primary);
    color: var(--black-deep);
    border-color: var(--gold-primary);
}

/* === 特色模块卡片 === */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.feature-card {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.12);
    border-radius: 14px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--gold-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(201,168,76,0.1);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 18px;
}

.feature-card h3 {
    color: var(--gold-primary);
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--gray-text);
    font-size: 14px;
    line-height: 1.7;
}

/* === 专家团队 === */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

.team-card {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.1);
    border-radius: 14px;
    padding: 28px;
    text-align: center;
    transition: all 0.3s;
}

.team-card:hover {
    border-color: var(--gold-primary);
    transform: translateY(-4px);
}

.team-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    margin: 0 auto 16px;
    overflow: hidden;
    border: 3px solid var(--gold-primary);
}

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

.team-card h4 { color: var(--gold-primary); font-size: 18px; margin-bottom: 4px; }
.team-card .role { color: var(--gray-light); font-size: 13px; margin-bottom: 10px; }
.team-card p { font-size: 13px; color: var(--gray-text); line-height: 1.6; }

.team-links { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.team-links a {
    padding: 5px 14px;
    border: 1px solid var(--gold-primary);
    border-radius: 15px;
    font-size: 12px;
    color: var(--gold-primary);
    transition: all 0.3s;
}
.team-links a:hover { background: var(--gold-primary); color: var(--black-deep); }

/* === FAQ手风琴 === */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
    border: 1px solid rgba(201,168,76,0.12);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
    background: var(--black-card);
}

.faq-question {
    padding: 18px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    transition: background 0.3s;
}

.faq-question:hover { background: rgba(201,168,76,0.05); }

.faq-question::after {
    content: "+";
    font-size: 22px;
    color: var(--gold-primary);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-item.active .faq-question::after { content: "-"; }

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 24px;
    color: var(--gray-text);
    font-size: 14px;
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 18px;
}

/* === 用户评论 === */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.review-card {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.1);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s;
}

.review-card:hover { border-color: var(--gold-primary); }

.review-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }

.review-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black-deep);
    font-weight: 700;
    font-size: 18px;
}

.review-name { color: var(--white); font-weight: 600; font-size: 15px; }
.review-date { color: var(--gray-light); font-size: 12px; }

.review-stars { color: var(--gold-primary); font-size: 14px; margin-bottom: 8px; letter-spacing: 2px; }

.review-text { font-size: 14px; color: var(--gray-text); line-height: 1.7; }

/* === 合作品牌墙 === */
.brand-wall {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.brand-item {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.1);
    border-radius: 10px;
    padding: 18px 30px;
    color: var(--gray-light);
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    letter-spacing: 1px;
}

.brand-item:hover { border-color: var(--gold-primary); color: var(--gold-primary); }

/* === 社区统计 === */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-box {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.12);
    border-radius: 12px;
    padding: 28px;
    text-align: center;
}

.stat-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--gold-primary);
    margin-bottom: 6px;
}

.stat-label { font-size: 14px; color: var(--gray-light); }

/* === 联系信息 === */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--black-card);
    border: 1px solid rgba(201,168,76,0.1);
    border-radius: 12px;
    padding: 28px;
    text-align: center;
}

.contact-card h4 { color: var(--gold-primary); margin-bottom: 12px; font-size: 18px; }
.contact-card p { font-size: 14px; color: var(--gray-text); margin-bottom: 6px; }
.contact-card img { max-width: 150px; margin: 12px auto 0; border-radius: 8px; }

/* === 社交分享 === */
.share-bar {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    padding: 20px 0;
}

.share-btn {
    padding: 10px 22px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid rgba(201,168,76,0.2);
    color: var(--gray-text);
    background: var(--black-card);
    cursor: pointer;
    transition: all 0.3s;
}

.share-btn:hover { border-color: var(--gold-primary); color: var(--gold-primary); }

/* === 页脚 === */
.site-footer {
    background: var(--black-card);
    border-top: 1px solid rgba(201,168,76,0.15);
    padding: 50px 0 25px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 35px;
}

.footer-col h4 {
    color: var(--gold-primary);
    font-size: 17px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.footer-col p, .footer-col a {
    display: block;
    font-size: 14px;
    color: var(--gray-text);
    margin-bottom: 8px;
    line-height: 1.6;
}

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

.footer-bottom {
    border-top: 1px solid rgba(201,168,76,0.1);
    padding-top: 20px;
    text-align: center;
    font-size: 13px;
    color: var(--gray-light);
}

.footer-logo { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.footer-logo img { height: 36px; width: 36px; border-radius: 4px; }
.footer-logo span { color: var(--gold-primary); font-size: 18px; font-weight: 700; }

/* === MCP服务前端 === */
.mcp-widget {
    background: var(--black-surface);
    border: 1px solid rgba(201,168,76,0.1);
    border-radius: 8px;
    padding: 16px;
    margin-top: 20px;
    font-size: 13px;
    color: var(--gray-light);
}

/* === 内页通用 === */
.page-header {
    background: linear-gradient(135deg, var(--black-card), var(--black-surface));
    padding: 50px 0;
    text-align: center;
    border-bottom: 1px solid rgba(201,168,76,0.1);
}

.page-header h1 {
    font-size: 36px;
    color: var(--gold-primary);
    margin-bottom: 12px;
    letter-spacing: 2px;
}

.page-header p { color: var(--gray-text); font-size: 16px; }

.content-area { padding: 50px 0; }

.article-content {
    max-width: 860px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.9;
}

.article-content h2 {
    color: var(--gold-primary);
    font-size: 24px;
    margin: 35px 0 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(201,168,76,0.15);
}

.article-content h3 {
    color: var(--gold-light);
    font-size: 20px;
    margin: 25px 0 12px;
}

.article-content p { margin-bottom: 16px; }

.article-content img {
    border-radius: 10px;
    margin: 20px 0;
    border: 1px solid rgba(201,168,76,0.1);
}

/* === 图片懒加载 === */
img[data-src] { opacity: 0; transition: opacity 0.5s; }
img[data-src].loaded { opacity: 1; }

/* === 响应式 === */
@media (max-width: 768px) {
    .main-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--black-card); padding: 15px; border-bottom: 1px solid rgba(201,168,76,0.2); }
    .main-nav.open { display: flex; }
    .mobile-menu-btn { display: block; }
    .hero-banner { height: 380px; }
    .hero-content h1 { font-size: 26px; }
    .hero-content p { font-size: 15px; }
    .section { padding: 40px 0; }
    .section-title h2 { font-size: 24px; }
    .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
    .feature-grid { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
    .review-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .page-header h1 { font-size: 26px; }
    .header-inner { padding: 10px 15px; }
    .site-logo span { font-size: 18px; }
}

@media (max-width: 480px) {
    .hero-banner { height: 300px; }
    .hero-content h1 { font-size: 22px; }
    .hero-btns { flex-direction: column; align-items: center; }
    .video-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .tab-nav { gap: 6px; }
    .tab-nav a, .tab-nav span { padding: 6px 14px; font-size: 13px; }
}