/* =============================================
   同人动漫官网 - 全局样式
   官网：c4kti4.cn
   ============================================= */

:root {
    --primary: #ff6b81;
    --primary-dark: #ff4757;
    --secondary: #fd79a8;
    --accent: #6c5ce7;
    --text-dark: #2f3542;
    --text-mid: #57606f;
    --text-light: #747d8c;
    --bg-light: #f8f9fa;
    --bg-pink: #fff5f7;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html { scroll-behavior:smooth; }

body {
    font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.7;
    font-size: 16px;
}

a { text-decoration:none; color:inherit; transition:var(--transition); }
a:hover { color: var(--primary); }
ul { list-style:none; }
img { max-width:100%; height:auto; display:block; }

.container { max-width:1200px; margin:0 auto; padding:0 20px; }

/* 无障碍隐藏 */
.sr-only {
    position:absolute; width:1px; height:1px;
    padding:0; margin:-1px; overflow:hidden;
    clip:rect(0,0,0,0); border:0;
}

/* ---- 公告栏 ---- */
.notice-bar {
    background: linear-gradient(90deg, var(--primary-dark), var(--accent));
    color: #fff;
    padding: 8px 0;
    font-size: 13px;
    text-align: center;
    overflow: hidden;
}
.notice-bar .container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}
.notice-bar a { color: #ffd700; text-decoration: underline; }

/* ---- 头部 ---- */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 200;
}
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 20px;
}
.logo { display:flex; align-items:center; gap:10px; flex-shrink:0; }
.logo-img { height:52px; border-radius:var(--radius-sm); }
.logo-text {
    font-size:20px; font-weight:800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
}
.nav ul { display:flex; gap:5px; align-items:center; }
.nav a {
    padding: 6px 12px;
    font-size:15px; font-weight:600;
    color: var(--text-dark);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}
.nav a:hover, .nav a.active { color:var(--primary); background:var(--bg-pink); }

.header-right { display:flex; align-items:center; gap:10px; }
.search-box { display:flex; align-items:center; }
.search-box input {
    padding: 7px 14px;
    border: 1.5px solid #dfe4ea;
    border-right: none;
    border-radius: 20px 0 0 20px;
    outline: none;
    font-size: 14px;
    width: 180px;
    transition: var(--transition);
}
.search-box input:focus { border-color: var(--primary); }
.search-box button {
    padding: 7px 16px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 0 20px 20px 0;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}
.search-box button:hover { background: var(--primary-dark); }

.nav-toggle {
    display: none;
    background: none;
    border: 1.5px solid #dfe4ea;
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-dark);
}

/* ---- 面包屑 ---- */
.breadcrumb {
    padding: 12px 20px;
    font-size: 13px;
    color: var(--text-light);
    background: var(--white);
    border-bottom: 1px solid #f1f2f6;
}
.breadcrumb a { color: var(--primary); }
.breadcrumb a:hover { text-decoration: underline; }

/* ---- Hero ---- */
.hero {
    min-height: 520px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
}
.hero::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(255,71,87,0.65), rgba(108,92,231,0.55));
}
.hero-content { position:relative; z-index:1; max-width:860px; padding:20px; }
.hero-title { font-size:52px; font-weight:900; margin-bottom:16px; text-shadow:2px 2px 8px rgba(0,0,0,0.4); line-height:1.2; }
.hero-sub { font-size:22px; font-weight:600; margin-bottom:12px; opacity:0.95; }
.hero-desc { font-size:16px; margin-bottom:30px; opacity:0.85; }
.hero-btns { display:flex; gap:15px; justify-content:center; flex-wrap:wrap; }

/* ---- 按钮 ---- */
.btn {
    display: inline-block;
    padding: 13px 32px;
    background: var(--primary);
    color: var(--white);
    border-radius: 30px;
    font-weight:700; font-size:16px;
    transition: var(--transition);
    border: 2px solid var(--primary);
}
.btn:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform:translateY(-2px); box-shadow:var(--shadow-md); color:#fff; }
.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.8);
}
.btn-outline:hover { background: rgba(255,255,255,0.15); color:#fff; }

.btn-sm { display:inline-block; padding:6px 16px; border-radius:20px; font-size:13px; font-weight:600; transition:var(--transition); }
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); color:#fff; }
.btn-outline-sm { background:transparent; color:var(--text-dark); border:1.5px solid #dfe4ea; }
.btn-outline-sm:hover { border-color:var(--primary); color:var(--primary); }

/* ---- 数据统计条 ---- */
.stats-bar {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 30px 0;
    color: #fff;
}
.stats-bar .container {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
}
.stat-item { text-align:center; }
.stat-item strong { display:block; font-size:32px; font-weight:900; }
.stat-item span { font-size:14px; opacity:0.85; }

/* ---- 通用section ---- */
.section { padding:70px 0; background:var(--white); }
.section-pink { background: var(--bg-pink); }
.section-title { text-align:center; font-size:34px; font-weight:800; margin-bottom:15px; color:var(--text-dark); }
.section-title span { color:var(--primary); }
.section-desc { text-align:center; color:var(--text-light); margin-bottom:40px; font-size:15px; max-width:700px; margin-left:auto; margin-right:auto; }

/* ---- 传媒分类标签 ---- */
.media-tabs { display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-bottom:30px; }
.tab-btn {
    padding: 8px 20px;
    background: var(--bg-light);
    color: var(--text-dark);
    border: 1.5px solid #dfe4ea;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}
.tab-btn.active, .tab-btn:hover { background:var(--primary); color:#fff; border-color:var(--primary); }

/* ---- 传媒卡片 ---- */
.media-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(280px, 1fr)); gap:25px; }
.media-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
}
.media-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.media-thumb { position:relative; height:185px; overflow:hidden; background:#f1f2f6; }
.media-thumb img { width:100%; height:100%; object-fit:cover; transition:transform 0.5s ease; }
.media-card:hover .media-thumb img { transform:scale(1.07); }
.play-btn {
    position:absolute; top:50%; left:50%;
    transform:translate(-50%,-50%) scale(0.8);
    width:56px; height:56px;
    background:rgba(255,107,129,0.88);
    border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    opacity:0; transition:all 0.3s ease;
    backdrop-filter: blur(4px);
}
.play-btn::after {
    content:'';
    width:0; height:0;
    border-style:solid;
    border-width:11px 0 11px 18px;
    border-color:transparent transparent transparent #fff;
    margin-left:4px;
}
.media-card:hover .play-btn { opacity:1; transform:translate(-50%,-50%) scale(1); }
.media-duration {
    position:absolute; bottom:8px; right:8px;
    background:rgba(0,0,0,0.7); color:#fff;
    font-size:12px; padding:2px 7px; border-radius:4px;
}
.media-info { padding:15px; }
.media-info h3 { font-size:15px; margin-bottom:8px; line-height:1.4; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.media-desc { font-size:13px; color:var(--text-light); margin-bottom:10px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.media-meta { display:flex; justify-content:space-between; color:var(--text-light); font-size:12px; }
.tag { display:inline-block; padding:3px 10px; background:#ffeaa7; color:var(--primary-dark); border-radius:12px; font-size:12px; margin-bottom:8px; font-weight:600; }

/* ---- 功能卡片（影视传媒专区） ---- */
.feature-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:20px; }
.feature-card { padding:28px 20px; background:var(--white); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); text-align:center; transition:var(--transition); }
.feature-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-md); }
.feature-icon { font-size:42px; margin-bottom:14px; }
.feature-card h3 { font-size:16px; color:var(--primary); margin-bottom:10px; }
.feature-card p { font-size:13px; color:var(--text-light); line-height:1.6; }

/* ---- 娱乐专区 ---- */
.ent-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:25px; }
.ent-card { background:var(--white); border-radius:var(--radius-md); overflow:hidden; box-shadow:var(--shadow-sm); transition:var(--transition); }
.ent-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.ent-card .media-thumb { height:360px; }
.ent-label {
    position:absolute; top:12px; left:12px;
    background:var(--primary); color:#fff;
    padding:4px 12px; border-radius:12px; font-size:12px; font-weight:700;
}

/* ---- AI赋能布局 ---- */
.ai-layout { display:flex; flex-wrap:wrap; gap:40px; align-items:center; }
.ai-image { flex:1; min-width:280px; }
.ai-image img { width:100%; border-radius:var(--radius-md); box-shadow:var(--shadow-md); }
.ai-content { flex:1; min-width:280px; }
.ai-title { font-size:26px; margin-bottom:15px; color:var(--primary); }
.ai-list { display:flex; flex-direction:column; gap:15px; }
.ai-item { display:flex; gap:15px; align-items:flex-start; padding:15px; background:var(--bg-light); border-radius:var(--radius-sm); }
.ai-icon { font-size:28px; flex-shrink:0; }
.ai-item strong { display:block; margin-bottom:4px; font-size:15px; }
.ai-item p { font-size:13px; color:var(--text-light); }

/* ---- 社区功能卡片 ---- */
.community-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(200px, 1fr)); gap:20px; }
.comm-card { padding:28px 20px; background:var(--white); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); text-align:center; transition:var(--transition); border-bottom:3px solid transparent; }
.comm-card:hover { transform:translateY(-4px); box-shadow:var(--shadow-md); border-bottom-color:var(--primary); }
.comm-icon { font-size:42px; margin-bottom:14px; }
.comm-card h3 { font-size:16px; margin-bottom:10px; color:var(--text-dark); }
.comm-card p { font-size:13px; color:var(--text-light); margin-bottom:15px; line-height:1.6; }
.comm-link { font-size:13px; color:var(--primary); font-weight:600; }
.comm-link:hover { text-decoration:underline; }

/* ---- 专家团队 ---- */
.expert-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(250px, 1fr)); gap:25px; }
.expert-card { text-align:center; padding:30px 20px; background:var(--white); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); transition:var(--transition); }
.expert-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-lg); }
.expert-avatar { width:110px; height:110px; border-radius:50%; margin:0 auto 16px; object-fit:cover; border:4px solid var(--bg-pink); box-shadow:var(--shadow-sm); }
.expert-card h3 { font-size:18px; font-weight:700; margin-bottom:6px; }
.expert-title { color:var(--primary); font-size:13px; margin-bottom:10px; font-weight:600; }
.expert-desc { font-size:13px; color:var(--text-light); margin-bottom:12px; line-height:1.6; }
.expert-tags { display:flex; flex-wrap:wrap; gap:6px; justify-content:center; margin-bottom:12px; }
.expert-tags span { padding:3px 10px; background:var(--bg-pink); color:var(--primary); border-radius:12px; font-size:12px; }
.expert-social { display:flex; gap:8px; justify-content:center; margin-bottom:14px; }
.expert-social a { padding:4px 10px; background:var(--bg-light); color:var(--text-mid); border-radius:10px; font-size:12px; }
.expert-social a:hover { background:var(--primary); color:#fff; }
.expert-btns { display:flex; gap:8px; justify-content:center; }

/* ---- 合作品牌 ---- */
.partner-grid { display:flex; flex-wrap:wrap; justify-content:center; gap:15px; }
.partner-item { padding:16px 28px; background:var(--bg-light); border-radius:var(--radius-sm); font-weight:700; color:var(--text-dark); font-size:15px; transition:var(--transition); border:1.5px solid transparent; }
.partner-item:hover { background:var(--bg-pink); border-color:var(--primary); color:var(--primary); }

/* ---- 用户评价 ---- */
.review-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(300px, 1fr)); gap:20px; }
.review-card { background:var(--white); padding:25px; border-radius:var(--radius-md); box-shadow:var(--shadow-sm); position:relative; }
.review-card::before { content:'"'; font-size:64px; color:rgba(255,107,129,0.15); position:absolute; top:8px; left:18px; font-family:serif; line-height:1; }
.review-card p { color:var(--text-dark); margin-bottom:18px; padding-top:22px; font-size:14px; line-height:1.7; }
.reviewer { display:flex; align-items:center; gap:12px; }
.reviewer-avatar { width:42px; height:42px; border-radius:50%; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:800; font-size:16px; flex-shrink:0; }
.reviewer-name { font-weight:700; font-size:14px; margin-bottom:3px; }
.reviewer-stars { color:#ffa502; font-size:13px; }

/* ---- 加入社区步骤 ---- */
.steps-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:20px; }
.step-card { text-align:center; padding:30px 20px; background:var(--white); border-radius:var(--radius-md); box-shadow:var(--shadow-sm); position:relative; }
.step-num { width:52px; height:52px; background:var(--primary); color:#fff; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:20px; font-weight:900; margin:0 auto 15px; }
.step-icon { font-size:42px; margin-bottom:12px; }
.step-card h3 { font-size:16px; margin-bottom:10px; }
.step-card p { font-size:13px; color:var(--text-light); line-height:1.6; }

/* ---- FAQ ---- */
.faq-list { max-width:820px; margin:0 auto; }
.faq-item { background:var(--white); border-radius:var(--radius-sm); margin-bottom:12px; overflow:hidden; box-shadow:var(--shadow-sm); border:1.5px solid transparent; transition:var(--transition); }
.faq-item.active { border-color:var(--primary); }
.faq-q { padding:18px 20px; font-weight:700; cursor:pointer; display:flex; justify-content:space-between; align-items:center; font-size:15px; }
.faq-q:hover { color:var(--primary); }
.faq-icon { width:24px; height:24px; background:var(--bg-pink); color:var(--primary); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:16px; font-weight:900; flex-shrink:0; transition:var(--transition); }
.faq-item.active .faq-icon { background:var(--primary); color:#fff; transform:rotate(45deg); }
.faq-a { padding:0 20px 18px; color:var(--text-light); display:none; font-size:14px; line-height:1.8; }
.faq-item.active .faq-a { display:block; }

/* ---- 联系卡片 ---- */
.contact-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(280px, 1fr)); gap:25px; }
.contact-card { padding:28px; background:var(--bg-pink); border-radius:var(--radius-md); }
.contact-card h3 { color:var(--primary); margin-bottom:18px; font-size:18px; }
.contact-card p { margin-bottom:10px; font-size:14px; color:var(--text-mid); }
.contact-card a { color:var(--primary); }

/* ---- 分享按钮 ---- */
.share-btns { display:flex; flex-wrap:wrap; justify-content:center; gap:15px; }
.share-btn { padding:12px 28px; border-radius:28px; font-weight:700; font-size:15px; transition:var(--transition); }
.share-btn:hover { transform:translateY(-2px); box-shadow:var(--shadow-md); }
.share-wechat { background:#07c160; color:#fff; }
.share-weibo { background:#e6162d; color:#fff; }
.share-douyin { background:#000; color:#fff; }
.share-bilibili { background:#00a1d6; color:#fff; }

/* ---- 底部 ---- */
.footer { background:var(--text-dark); color:var(--white); padding:60px 0 20px; }
.footer-content { display:flex; justify-content:space-between; flex-wrap:wrap; gap:40px; margin-bottom:40px; }
.footer-info { max-width:300px; }
.footer-logo { height:50px; margin-bottom:15px; border-radius:6px; }
.footer-info h4 { margin-bottom:12px; font-size:16px; }
.footer-info p { color:#a4b0be; font-size:14px; margin-bottom:10px; line-height:1.6; }
.contact-info p { margin-bottom:8px; color:#a4b0be; font-size:13px; }
.footer-copyright-badge { display:flex; gap:10px; margin-top:15px; flex-wrap:wrap; }
.footer-copyright-badge span { padding:4px 12px; background:rgba(255,107,129,0.2); color:var(--primary); border-radius:12px; font-size:12px; border:1px solid rgba(255,107,129,0.3); }
.footer-nav h4 { margin-bottom:15px; font-size:15px; }
.footer-nav ul li { margin-bottom:8px; }
.footer-nav a { color:#a4b0be; font-size:14px; }
.footer-nav a:hover { color:var(--primary); }
.footer-qrcodes { display:flex; gap:25px; flex-wrap:wrap; }
.qrcode-item { text-align:center; }
.qrcode-item img { width:110px; height:110px; border-radius:var(--radius-sm); margin-bottom:8px; border:2px solid rgba(255,255,255,0.1); }
.qrcode-item span { color:#a4b0be; font-size:12px; display:block; }
.footer-bottom { text-align:center; padding-top:20px; border-top:1px solid rgba(255,255,255,0.08); color:#a4b0be; font-size:13px; }
.footer-bottom p { margin-bottom:6px; }
.footer-bottom a { color:#a4b0be; }
.footer-bottom a:hover { color:var(--primary); }

/* =============================================
   响应式设计 - 移动端优先
   ============================================= */

/* 平板 */
@media (max-width: 1024px) {
    .hero-title { font-size:42px; }
    .hero-sub { font-size:18px; }
    .nav ul { gap:2px; }
    .nav a { padding:6px 8px; font-size:14px; }
    .search-box input { width:130px; }
}

/* 手机 */
@media (max-width: 768px) {
    .header .container { height:auto; padding:12px 15px; flex-wrap:wrap; }
    .nav { display:none; width:100%; order:3; }
    .nav.open { display:block; }
    .nav ul { flex-direction:column; gap:0; }
    .nav a { display:block; padding:12px 15px; border-radius:0; border-bottom:1px solid #f1f2f6; }
    .header-right { gap:8px; }
    .search-box input { width:110px; font-size:13px; }
    .nav-toggle { display:flex; align-items:center; justify-content:center; }

    .notice-bar .container { flex-direction:column; gap:5px; }
    .hero { min-height:380px; }
    .hero-title { font-size:28px; }
    .hero-sub { font-size:15px; }
    .hero-desc { font-size:14px; }
    .hero-btns { gap:10px; }
    .btn { padding:10px 22px; font-size:14px; }

    .stats-bar .container { gap:15px; }
    .stat-item strong { font-size:24px; }

    .section { padding:45px 0; }
    .section-title { font-size:26px; }

    .media-grid { grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:15px; }
    .ent-card .media-thumb { height:260px; }
    .ai-layout { flex-direction:column; }
    .expert-grid { grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); }
    .footer-content { flex-direction:column; align-items:center; text-align:center; }
    .footer-info { max-width:100%; }
    .footer-qrcodes { justify-content:center; }
    .footer-nav { text-align:center; }
    .contact-grid { grid-template-columns:1fr; }
    .steps-grid { grid-template-columns:1fr 1fr; }
}

@media (max-width: 480px) {
    .container { padding:0 12px; }
    .hero-title { font-size:24px; }
    .section-title { font-size:22px; }
    .media-grid { grid-template-columns:1fr; }
    .feature-grid { grid-template-columns:1fr 1fr; }
    .community-grid { grid-template-columns:1fr 1fr; }
    .steps-grid { grid-template-columns:1fr; }
    .review-grid { grid-template-columns:1fr; }
    .share-btns { gap:10px; }
    .share-btn { padding:10px 18px; font-size:14px; }
    .ent-grid { grid-template-columns:1fr; }
    .partner-grid { gap:10px; }
    .partner-item { padding:12px 18px; font-size:14px; }
}

/* 打印样式 */
@media print {
    .header, .footer, .notice-bar, .share-btns, .nav-toggle { display:none; }
    .section { padding:20px 0; }
    body { font-size:12px; }
}