/* ============================================
   国产自拍 全新原创主题 - 星夜霓虹风格
   域名: fxtqp.cn
   配色: 深紫底色 + 霓虹渐变 + 玻璃拟态
   ============================================ */

/* === 基础重置与变量 === */
:root {
    --primary: #7B2FF7;
    --primary-light: #A855F7;
    --accent: #FF2D78;
    --accent-light: #FF6BA6;
    --bg-dark: #0D0B1A;
    --bg-card: rgba(255,255,255,0.04);
    --bg-glass: rgba(255,255,255,0.08);
    --text-main: #E8E0F0;
    --text-muted: #9B8FB8;
    --text-bright: #FFFFFF;
    --border-glass: rgba(255,255,255,0.12);
    --gradient-main: linear-gradient(135deg, #7B2FF7, #FF2D78);
    --gradient-card: linear-gradient(145deg, rgba(123,47,247,0.15), rgba(255,45,120,0.08));
    --shadow-neon: 0 0 30px rgba(123,47,247,0.3);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
    --radius: 16px;
    --radius-sm: 10px;
    --transition: all 0.35s cubic-bezier(0.4,0,0.2,1);
    --max-width: 1280px;
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* === 导航栏 === */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(13,11,26,0.85);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    transition: var(--transition);
}
.navbar.scrolled { background: rgba(13,11,26,0.95); box-shadow: var(--shadow-neon); }
.navbar .container {
    display: flex; align-items: center; justify-content: space-between;
    height: 68px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand img { height: 38px; width: auto; }
.nav-brand span {
    font-size: 1.25rem; font-weight: 700;
    background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; }
.nav-links a {
    padding: 8px 16px; border-radius: var(--radius-sm);
    color: var(--text-muted); font-size: 0.95rem; font-weight: 500;
    transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active {
    color: var(--text-bright);
    background: var(--bg-glass);
}
.nav-toggle { display: none; background: none; border: none; color: var(--text-main); font-size: 1.5rem; cursor: pointer; }

/* === 搜索栏 === */
.search-bar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-glass);
    padding: 12px 0;
    margin-top: 68px;
}
.search-bar .container { display: flex; justify-content: center; }
.search-box {
    display: flex; align-items: center;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    padding: 6px 6px 6px 20px;
    width: 100%; max-width: 580px;
    transition: var(--transition);
}
.search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 20px rgba(123,47,247,0.2); }
.search-box input {
    flex: 1; background: none; border: none; outline: none;
    color: var(--text-main); font-size: 0.95rem;
    padding: 8px 0;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box button {
    background: var(--gradient-main);
    border: none; border-radius: 50px;
    color: #fff; padding: 10px 24px;
    font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: var(--transition);
}
.search-box button:hover { transform: scale(1.05); box-shadow: var(--shadow-neon); }

/* === Hero区域 === */
.hero {
    position: relative;
    min-height: 520px;
    display: flex; align-items: center;
    overflow: hidden;
    padding: 80px 0 60px;
}
.hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center; background-repeat: no-repeat;
    opacity: 0.4;
}
.hero-bg::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(13,11,26,0.3) 0%, var(--bg-dark) 100%);
}
.hero .container { position: relative; z-index: 2; text-align: center; }
.hero h1 {
    font-size: 3rem; font-weight: 800;
    background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px; line-height: 1.3;
}
.hero h2 {
    font-size: 1.3rem; font-weight: 400;
    color: var(--text-muted); margin-bottom: 32px;
}
.hero-stats {
    display: flex; justify-content: center; gap: 48px;
    margin-top: 40px;
}
.hero-stats .stat { text-align: center; }
.hero-stats .stat-num {
    font-size: 2.2rem; font-weight: 800;
    background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-stats .stat-label { font-size: 0.85rem; color: var(--text-muted); margin-top: 4px; }

.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--gradient-main);
    color: #fff; padding: 14px 36px;
    border-radius: 50px; font-size: 1rem; font-weight: 600;
    border: none; cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(123,47,247,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(123,47,247,0.5); color: #fff; }

.btn-outline {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent;
    color: var(--primary-light);
    padding: 14px 36px;
    border-radius: 50px; font-size: 1rem; font-weight: 600;
    border: 2px solid var(--primary);
    cursor: pointer; transition: var(--transition);
}
.btn-outline:hover { background: var(--gradient-main); color: #fff; border-color: transparent; }

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

/* === 通用Section === */
.section { padding: 72px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
    font-size: 2rem; font-weight: 700; margin-bottom: 12px;
    color: var(--text-bright);
}
.section-header h3 {
    font-size: 1.5rem; font-weight: 600; margin-bottom: 10px;
    color: var(--text-bright);
}
.section-header p { color: var(--text-muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }

.section-alt { background: rgba(123,47,247,0.03); }

/* === 视频卡片网格 === */
.video-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.video-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}
.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card);
    border-color: var(--primary);
}
.video-thumb {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}
.video-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.08); }

.play-btn {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.4);
    opacity: 0; transition: var(--transition);
}
.video-card:hover .play-btn { opacity: 1; }
.play-btn span {
    width: 56px; height: 56px;
    background: var(--gradient-main);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 30px rgba(123,47,247,0.5);
}
.play-btn span::after {
    content: ''; display: block;
    width: 0; height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.video-duration {
    position: absolute; bottom: 8px; right: 8px;
    background: rgba(0,0,0,0.75);
    color: #fff; font-size: 0.75rem; font-weight: 600;
    padding: 2px 8px; border-radius: 4px;
}

.video-info { padding: 14px 16px; }
.video-info h3 {
    font-size: 0.95rem; font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 8px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.video-meta {
    display: flex; align-items: center; gap: 12px;
    font-size: 0.8rem; color: var(--text-muted);
}
.video-meta span { display: flex; align-items: center; gap: 4px; }

/* === 分类标签 === */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 36px; }
.tag-item {
    padding: 8px 20px; border-radius: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-muted); font-size: 0.9rem;
    cursor: pointer; transition: var(--transition);
}
.tag-item:hover, .tag-item.active {
    background: var(--gradient-main);
    color: #fff; border-color: transparent;
}

/* === 特色模块网格 === */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.feature-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-neon);
    border-color: var(--primary);
}
.feature-icon {
    width: 64px; height: 64px;
    background: var(--gradient-main);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}
.feature-card h3 { font-size: 1.15rem; font-weight: 600; color: var(--text-bright); margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }

/* === 专家团队 === */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.expert-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}
.expert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.expert-avatar {
    width: 100px; height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary);
    margin: 0 auto 16px;
}
.expert-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-bright); margin-bottom: 4px; }
.expert-card .role { font-size: 0.85rem; color: var(--accent-light); margin-bottom: 12px; }
.expert-card p { font-size: 0.85rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; }
.expert-card .btn-sm {
    display: inline-block;
    padding: 8px 20px; border-radius: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--primary-light); font-size: 0.85rem;
    transition: var(--transition);
}
.expert-card .btn-sm:hover { background: var(--gradient-main); color: #fff; border-color: transparent; }

/* === 用户评价 === */
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}
.review-card:hover { border-color: var(--primary); }
.review-stars { color: #FFD700; font-size: 1rem; margin-bottom: 12px; }
.review-card p { font-size: 0.92rem; color: var(--text-main); line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-author .avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--gradient-main);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 0.9rem;
}
.review-author .name { font-size: 0.9rem; font-weight: 600; color: var(--text-bright); }
.review-author .date { font-size: 0.78rem; color: var(--text-muted); }

/* === FAQ === */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
}
.faq-question {
    padding: 18px 24px;
    display: flex; justify-content: space-between; align-items: center;
    cursor: pointer; transition: var(--transition);
    font-weight: 600; color: var(--text-bright);
}
.faq-question:hover { background: var(--bg-glass); }
.faq-question .arrow { transition: transform 0.3s; font-size: 1.2rem; color: var(--primary-light); }
.faq-item.open .faq-question .arrow { transform: rotate(180deg); }
.faq-answer {
    max-height: 0; overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 24px;
    color: var(--text-muted); font-size: 0.92rem; line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 18px; }

/* === 合作品牌 === */
.brand-wall {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 32px;
    padding: 20px 0;
}
.brand-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 16px 28px;
    color: var(--text-muted); font-size: 1rem; font-weight: 600;
    transition: var(--transition);
}
.brand-item:hover { border-color: var(--primary); color: var(--text-bright); }

/* === 联系我们 === */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}
.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 32px;
}
.contact-card h3 { font-size: 1.2rem; font-weight: 600; color: var(--text-bright); margin-bottom: 20px; }
.contact-item { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.contact-item .icon {
    width: 36px; height: 36px; flex-shrink: 0;
    background: var(--bg-glass);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem;
}
.contact-item .info .label { font-size: 0.8rem; color: var(--text-muted); }
.contact-item .info .value { font-size: 0.95rem; color: var(--text-bright); font-weight: 500; }

.qr-grid { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item img { width: 140px; height: 140px; border-radius: var(--radius-sm); margin-bottom: 8px; }
.qr-item p { font-size: 0.85rem; color: var(--text-muted); }

/* === 社交分享 === */
.share-bar {
    display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
    padding: 20px 0;
}
.share-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 20px; border-radius: 50px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    color: var(--text-muted); font-size: 0.88rem;
    cursor: pointer; transition: var(--transition);
}
.share-btn:hover { background: var(--gradient-main); color: #fff; border-color: transparent; }

/* === 页脚 === */
.footer {
    background: rgba(0,0,0,0.3);
    border-top: 1px solid var(--border-glass);
    padding: 48px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 36px;
}
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; margin-top: 12px; line-height: 1.6; }
.footer h4 { font-size: 1rem; font-weight: 600; color: var(--text-bright); margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--primary-light); }
.footer-bottom {
    border-top: 1px solid var(--border-glass);
    padding-top: 20px;
    display: flex; justify-content: space-between; align-items: center;
    font-size: 0.85rem; color: var(--text-muted);
    flex-wrap: wrap; gap: 12px;
}

/* === 面包屑 === */
.breadcrumb {
    padding: 16px 0;
    margin-top: 68px;
    font-size: 0.88rem;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb span { color: var(--text-muted); margin: 0 8px; }
.breadcrumb .current { color: var(--text-bright); }

/* === 内页通用 === */
.page-hero {
    padding: 100px 0 48px;
    text-align: center;
    background: var(--gradient-card);
    border-bottom: 1px solid var(--border-glass);
}
.page-hero h1 {
    font-size: 2.4rem; font-weight: 700;
    color: var(--text-bright); margin-bottom: 12px;
}
.page-hero p { color: var(--text-muted); font-size: 1.05rem; }

.content-section { padding: 48px 0; }
.content-section h2 { font-size: 1.6rem; font-weight: 600; color: var(--text-bright); margin-bottom: 16px; }
.content-section h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-bright); margin-bottom: 12px; }
.content-section p { color: var(--text-main); margin-bottom: 16px; line-height: 1.8; }
.content-section ul, .content-section ol { padding-left: 24px; margin-bottom: 16px; }
.content-section li { color: var(--text-main); margin-bottom: 8px; line-height: 1.7; }

/* === 工具卡片 === */
.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.tool-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    transition: var(--transition);
}
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-neon); border-color: var(--primary); }
.tool-card .icon { font-size: 2.5rem; margin-bottom: 16px; }
.tool-card h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-bright); margin-bottom: 8px; }
.tool-card p { font-size: 0.88rem; color: var(--text-muted); }

/* === 社区帖子 === */
.post-list { max-width: 800px; margin: 0 auto; }
.post-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 16px;
    transition: var(--transition);
}
.post-item:hover { border-color: var(--primary); }
.post-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.post-header .avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: var(--gradient-main);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 0.85rem;
}
.post-header .user-info .name { font-size: 0.92rem; font-weight: 600; color: var(--text-bright); }
.post-header .user-info .time { font-size: 0.78rem; color: var(--text-muted); }
.post-content { font-size: 0.95rem; color: var(--text-main); line-height: 1.7; margin-bottom: 12px; }
.post-actions { display: flex; gap: 20px; }
.post-actions span {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.85rem; color: var(--text-muted);
    cursor: pointer; transition: var(--transition);
}
.post-actions span:hover { color: var(--accent-light); }

/* === 直播卡片 === */
.live-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.live-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.live-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.live-card img { width: 100%; aspect-ratio: 3/4; object-fit: cover; }
.live-badge {
    position: absolute; top: 10px; left: 10px;
    background: #FF0040;
    color: #fff; font-size: 0.72rem; font-weight: 700;
    padding: 3px 10px; border-radius: 4px;
    animation: pulse-live 1.5s infinite;
}
@keyframes pulse-live { 0%,100% { opacity: 1; } 50% { opacity: 0.7; } }
.live-info {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 40px 12px 12px;
}
.live-info .name { font-size: 0.9rem; font-weight: 600; color: #fff; }
.live-info .viewers { font-size: 0.78rem; color: rgba(255,255,255,0.7); }

/* === 响应式 === */
@media (max-width: 1024px) {
    .video-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .live-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .nav-links { 
        display: none; position: fixed; top: 68px; left: 0; right: 0;
        background: rgba(13,11,26,0.98);
        flex-direction: column; padding: 20px;
        border-bottom: 1px solid var(--border-glass);
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .hero h1 { font-size: 2rem; }
    .hero h2 { font-size: 1rem; }
    .hero-stats { gap: 24px; }
    .hero-stats .stat-num { font-size: 1.6rem; }
    .video-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .feature-grid { grid-template-columns: 1fr; }
    .expert-grid { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .tool-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .live-grid { grid-template-columns: repeat(2, 1fr); }
    .section { padding: 48px 0; }
    .section-header h2 { font-size: 1.6rem; }
}

@media (max-width: 480px) {
    .video-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .live-grid { grid-template-columns: 1fr; }
}

/* === 图片加载 === */
img { opacity: 1; }

/* === 动画 === */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s, transform 0.6s; }
.fade-in.visible { opacity: 1; transform: translateY(0); }