/* 玩物直播 - 主样式文件 */
/* 原创设计，版权所有 © 2026 玩物直播 y62u8b.cn */

:root {
  --primary: #e8174a;
  --primary-dark: #c01038;
  --secondary: #1a1a2e;
  --accent: #ff6b35;
  --accent2: #7c3aed;
  --bg-dark: #0f0f1a;
  --bg-card: #16213e;
  --bg-light: #f8f9fc;
  --text-main: #1a1a2e;
  --text-muted: #6b7280;
  --text-light: #f1f5f9;
  --border: #e2e8f0;
  --border-dark: #2d3748;
  --gold: #f59e0b;
  --green: #10b981;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;color:var(--text-main);background:#fff;line-height:1.7;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ===== 通用工具类 ===== */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container-wide{max-width:1400px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-sm{padding:50px 0}
.section-title{font-size:2rem;font-weight:700;color:var(--secondary);margin-bottom:12px;line-height:1.3}
.section-subtitle{font-size:1.05rem;color:var(--text-muted);margin-bottom:48px;max-width:600px}
.section-header{text-align:center;margin-bottom:48px}
.section-header .section-title::after{content:'';display:block;width:50px;height:4px;background:var(--primary);border-radius:2px;margin:12px auto 0}
.text-center{text-align:center}
.text-primary{color:var(--primary)}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:0.75rem;font-weight:600;letter-spacing:0.5px}
.badge-primary{background:rgba(232,23,74,0.1);color:var(--primary)}
.badge-live{background:var(--primary);color:#fff;animation:pulse 2s infinite}
.badge-hot{background:var(--accent);color:#fff}
.badge-new{background:var(--green);color:#fff}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.7}}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-size:0.95rem;font-weight:600;transition:var(--transition);cursor:pointer}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,23,74,0.35)}
.btn-secondary{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-secondary:hover{background:var(--primary);color:#fff}
.btn-dark{background:var(--secondary);color:#fff}
.btn-dark:hover{background:#2d3748}
.btn-sm{padding:8px 18px;font-size:0.85rem}
.btn-lg{padding:16px 36px;font-size:1.05rem}
.btn-icon{width:40px;height:40px;padding:0;justify-content:center;border-radius:50%}

/* ===== 顶部公告栏 ===== */
.top-bar{background:var(--secondary);color:rgba(255,255,255,0.85);padding:8px 0;font-size:0.82rem}
.top-bar .container{display:flex;justify-content:space-between;align-items:center}
.top-bar a{color:rgba(255,255,255,0.7)}
.top-bar a:hover{color:#fff}
.top-bar-left{display:flex;align-items:center;gap:20px}
.top-bar-right{display:flex;align-items:center;gap:16px}
.live-dot{display:inline-block;width:8px;height:8px;background:var(--primary);border-radius:50%;margin-right:6px;animation:pulse 1.5s infinite}

/* ===== 导航 ===== */
.header{background:#fff;box-shadow:0 2px 16px rgba(0,0,0,0.08);position:sticky;top:0;z-index:1000;transition:var(--transition)}
.header.scrolled{box-shadow:0 4px 24px rgba(0,0,0,0.12)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:12px;font-size:1.4rem;font-weight:800;color:var(--secondary)}
.logo-img{width:42px;height:42px;border-radius:8px;object-fit:cover}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text span:first-child{font-size:1.2rem;color:var(--primary)}
.logo-text span:last-child{font-size:0.7rem;color:var(--text-muted);font-weight:400}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:4px;padding:8px 14px;border-radius:var(--radius-sm);font-size:0.92rem;font-weight:500;color:var(--text-main);transition:var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--primary);background:rgba(232,23,74,0.06)}
.nav-link .arrow{font-size:0.7rem;transition:transform 0.2s}
.nav-item:hover .arrow{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:180px;padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:var(--transition);z-index:100;border:1px solid var(--border)}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:9px 14px;border-radius:var(--radius-sm);font-size:0.88rem;color:var(--text-main)}
.dropdown a:hover{background:rgba(232,23,74,0.06);color:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.hamburger span{display:block;width:22px;height:2px;background:var(--text-main);border-radius:2px;transition:var(--transition)}

/* ===== 搜索框 ===== */
.search-bar{background:#f3f4f8;padding:12px 0;border-bottom:1px solid var(--border)}
.search-inner{display:flex;align-items:center;max-width:700px;margin:0 auto;background:#fff;border-radius:30px;border:2px solid var(--border);overflow:hidden;transition:var(--transition)}
.search-inner:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(232,23,74,0.1)}
.search-inner input{flex:1;padding:10px 20px;border:none;outline:none;font-size:0.95rem;background:transparent;color:var(--text-main)}
.search-inner button{padding:10px 24px;background:var(--primary);color:#fff;font-size:0.9rem;font-weight:600;border:none;cursor:pointer;transition:var(--transition)}
.search-inner button:hover{background:var(--primary-dark)}
.search-tags{display:flex;align-items:center;gap:8px;max-width:700px;margin:8px auto 0;flex-wrap:wrap}
.search-tags span{font-size:0.8rem;color:var(--text-muted)}
.search-tags a{font-size:0.8rem;color:var(--text-muted);padding:2px 10px;border-radius:12px;background:#eee;transition:var(--transition)}
.search-tags a:hover{background:var(--primary);color:#fff}

/* ===== 英雄区 ===== */
.hero{position:relative;overflow:hidden;background:var(--bg-dark);min-height:580px;display:flex;align-items:center}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0.4}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,15,26,0.92) 0%,rgba(15,15,26,0.6) 60%,transparent 100%)}
.hero-content{position:relative;z-index:2;max-width:640px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(232,23,74,0.15);border:1px solid rgba(232,23,74,0.3);color:var(--primary);padding:6px 16px;border-radius:20px;font-size:0.85rem;font-weight:600;margin-bottom:20px}
.hero h1{font-size:3rem;font-weight:800;color:#fff;line-height:1.2;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-desc{font-size:1.1rem;color:rgba(255,255,255,0.75);margin-bottom:32px;line-height:1.8}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.1)}
.hero-stat{text-align:center}
.hero-stat strong{display:block;font-size:1.8rem;font-weight:800;color:#fff}
.hero-stat span{font-size:0.82rem;color:rgba(255,255,255,0.55)}

/* ===== 视频卡片 ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-grid-4{grid-template-columns:repeat(4,1fr)}
.video-grid-3{grid-template-columns:repeat(3,1fr)}
.video-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0f0f1a}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition)}
.video-card:hover .play-btn{opacity:1}
.play-circle{width:60px;height:60px;background:rgba(232,23,74,0.9);border-radius:50%;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.play-circle::after{content:'';border-left:22px solid #fff;border-top:13px solid transparent;border-bottom:13px solid transparent;margin-left:4px}
.video-duration{position:absolute;bottom:10px;right:10px;background:rgba(0,0,0,0.75);color:#fff;font-size:0.78rem;padding:2px 8px;border-radius:4px;font-weight:600}
.video-live-tag{position:absolute;top:10px;left:10px}
.video-info{padding:14px}
.video-title{font-size:0.95rem;font-weight:600;color:var(--text-main);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;align-items:center;justify-content:space-between;font-size:0.8rem;color:var(--text-muted)}
.video-author{display:flex;align-items:center;gap:6px}
.video-author img{width:22px;height:22px;border-radius:50%;object-fit:cover}
.video-stats{display:flex;gap:12px}
.video-stats span{display:flex;align-items:center;gap:3px}

/* ===== 直播卡片 ===== */
.live-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}
.live-card{border-radius:var(--radius);overflow:hidden;position:relative;cursor:pointer;background:#0f0f1a}
.live-card:hover .live-thumb img{transform:scale(1.06)}
.live-thumb{aspect-ratio:9/16;overflow:hidden;position:relative}
.live-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.live-overlay{position:absolute;inset:0;background:linear-gradient(to top,rgba(0,0,0,0.8) 0%,transparent 50%)}
.live-info{position:absolute;bottom:0;left:0;right:0;padding:16px}
.live-name{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:4px}
.live-viewers{font-size:0.8rem;color:rgba(255,255,255,0.75);display:flex;align-items:center;gap:4px}
.live-viewers::before{content:'👁';font-size:0.75rem}

/* ===== 新闻卡片 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-card:hover .news-title{color:var(--primary)}
.news-thumb{aspect-ratio:16/9;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:18px}
.news-cat{font-size:0.78rem;font-weight:600;color:var(--primary);margin-bottom:8px;text-transform:uppercase;letter-spacing:0.5px}
.news-title{font-size:1rem;font-weight:700;color:var(--text-main);margin-bottom:10px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color 0.2s}
.news-excerpt{font-size:0.85rem;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-footer{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:14px;border-top:1px solid var(--border);font-size:0.8rem;color:var(--text-muted)}

/* ===== 专家卡片 ===== */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-align:center;padding:28px 20px;transition:var(--transition)}
.expert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.expert-avatar{width:90px;height:90px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid var(--primary)}
.expert-name{font-size:1.05rem;font-weight:700;margin-bottom:4px}
.expert-role{font-size:0.82rem;color:var(--text-muted);margin-bottom:12px}
.expert-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-bottom:16px}
.expert-tag{font-size:0.75rem;padding:3px 10px;background:#f3f4f8;border-radius:12px;color:var(--text-muted)}
.expert-actions{display:flex;gap:8px;justify-content:center}

/* ===== 评价 ===== */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.review-card{background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border-left:4px solid var(--primary)}
.review-stars{color:var(--gold);font-size:1rem;margin-bottom:12px;letter-spacing:2px}
.review-text{font-size:0.92rem;color:var(--text-main);line-height:1.7;margin-bottom:16px}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:0.9rem;flex-shrink:0}
.review-name{font-weight:600;font-size:0.9rem}
.review-date{font-size:0.78rem;color:var(--text-muted)}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item.open{border-color:var(--primary);box-shadow:0 0 0 2px rgba(232,23,74,0.1)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;cursor:pointer;font-weight:600;font-size:0.98rem;color:var(--text-main);transition:var(--transition)}
.faq-q:hover{color:var(--primary)}
.faq-item.open .faq-q{color:var(--primary)}
.faq-icon{width:24px;height:24px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:1.1rem;transition:transform 0.3s;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.3s}
.faq-item.open .faq-a{max-height:300px;padding-bottom:18px}
.faq-a p{font-size:0.9rem;color:var(--text-muted);line-height:1.8}

/* ===== 面包屑 ===== */
.breadcrumb{padding:14px 0;font-size:0.85rem;color:var(--text-muted)}
.breadcrumb a{color:var(--text-muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ===== 页脚 ===== */
.footer{background:var(--secondary);color:rgba(255,255,255,0.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:0.88rem;line-height:1.8;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.social-btn{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;font-size:0.9rem;transition:var(--transition);color:rgba(255,255,255,0.7)}
.social-btn:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:0.95rem;font-weight:700;color:#fff;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid rgba(255,255,255,0.1)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:0.85rem;color:rgba(255,255,255,0.6);transition:var(--transition)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-qr{display:flex;gap:20px;margin-top:20px}
.qr-item{text-align:center}
.qr-item img{width:90px;height:90px;border-radius:8px;border:2px solid rgba(255,255,255,0.15)}
.qr-item p{font-size:0.75rem;margin-top:6px;color:rgba(255,255,255,0.5)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-size:0.82rem}
.footer-bottom a{color:rgba(255,255,255,0.5)}
.footer-bottom a:hover{color:#fff}

/* ===== 侧边栏 ===== */
.sidebar{display:flex;flex-direction:column;gap:24px}
.widget{background:#fff;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.widget-title{font-size:1rem;font-weight:700;color:var(--secondary);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--primary);display:flex;align-items:center;gap:8px}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-rank{width:24px;height:24px;border-radius:4px;background:#f3f4f8;display:flex;align-items:center;justify-content:center;font-size:0.78rem;font-weight:700;color:var(--text-muted);flex-shrink:0}
.hot-rank.top{background:var(--primary);color:#fff}
.hot-item a{font-size:0.88rem;color:var(--text-main);line-height:1.4;transition:color 0.2s}
.hot-item a:hover{color:var(--primary)}

/* ===== 分页 ===== */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:40px}
.page-btn{width:38px;height:38px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:0.9rem;font-weight:600;border:1px solid var(--border);color:var(--text-main);transition:var(--transition)}
.page-btn:hover,.page-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.page-btn.disabled{opacity:0.4;cursor:not-allowed}

/* ===== 标签云 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;padding:5px 14px;border-radius:20px;font-size:0.82rem;background:#f3f4f8;color:var(--text-muted);transition:var(--transition)}
.tag:hover{background:var(--primary);color:#fff}

/* ===== 统计数字 ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:#fff;border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);border-top:4px solid var(--primary)}
.stat-number{font-size:2.2rem;font-weight:800;color:var(--primary);line-height:1}
.stat-label{font-size:0.85rem;color:var(--text-muted);margin-top:8px}

/* ===== 合作品牌 ===== */
.partner-row{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.partner-logo{padding:16px 24px;background:#fff;border-radius:var(--radius-sm);border:1px solid var(--border);font-size:0.9rem;font-weight:700;color:var(--text-muted);transition:var(--transition)}
.partner-logo:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow)}

/* ===== 内页横幅 ===== */
.page-banner{background:linear-gradient(135deg,var(--bg-dark) 0%,var(--secondary) 100%);padding:60px 0;position:relative;overflow:hidden}
.page-banner::before{content:'';position:absolute;top:-50%;right:-10%;width:500px;height:500px;border-radius:50%;background:rgba(232,23,74,0.08);pointer-events:none}
.page-banner h1{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:10px}
.page-banner p{color:rgba(255,255,255,0.65);font-size:1rem}

/* ===== 用户评论区 ===== */
.comment-box{background:#f8f9fc;border-radius:var(--radius);padding:24px;margin-top:32px}
.comment-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}
.comment-item:last-child{border-bottom:none}
.comment-avatar{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent2));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;flex-shrink:0}
.comment-content{flex:1}
.comment-header{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.comment-name{font-weight:600;font-size:0.92rem}
.comment-date{font-size:0.78rem;color:var(--text-muted)}
.comment-text{font-size:0.9rem;color:var(--text-main);line-height:1.7}
.comment-likes{font-size:0.8rem;color:var(--text-muted);margin-top:6px;display:flex;align-items:center;gap:4px}

/* ===== 分享按钮 ===== */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px 0;border-top:1px solid var(--border);margin-top:24px}
.share-label{font-size:0.88rem;color:var(--text-muted);font-weight:600}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:20px;font-size:0.82rem;font-weight:600;transition:var(--transition)}
.share-wechat{background:#07c160;color:#fff}
.share-weibo{background:#e6162d;color:#fff}
.share-douyin{background:#000;color:#fff}
.share-bilibili{background:#00a1d6;color:#fff}
.share-btn:hover{opacity:0.85;transform:translateY(-1px)}

/* ===== 响应式 ===== */
@media(max-width:1100px){
  .video-grid-4{grid-template-columns:repeat(3,1fr)}
  .expert-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .hero h1{font-size:2.2rem}
  .video-grid-4,.video-grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:56px 0}
}
@media(max-width:768px){
  .nav-menu,.nav-actions .btn{display:none}
  .hamburger{display:flex}
  .hero h1{font-size:1.8rem}
  .hero-stats{gap:20px}
  .hero-stat strong{font-size:1.4rem}
  .top-bar-left .hide-mobile{display:none}
  .footer-grid{grid-template-columns:1fr}
}
@media(max-width:600px){
  .video-grid,.video-grid-4,.video-grid-3{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .section-title{font-size:1.6rem}
  .hero h1{font-size:1.6rem}
  .hero-actions{flex-direction:column}
  .hero-stats{flex-wrap:wrap;gap:16px}
}

/* ===== 懒加载 ===== */
img[data-src]{opacity:0;transition:opacity 0.4s}
img.loaded{opacity:1}

/* ===== 移动端菜单 ===== */
.mobile-menu{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:2000}
.mobile-menu.open{display:block}
.mobile-menu-inner{position:absolute;top:0;right:0;width:280px;height:100%;background:#fff;padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform 0.3s}
.mobile-menu.open .mobile-menu-inner{transform:translateX(0)}
.mobile-menu-close{display:flex;justify-content:flex-end;margin-bottom:20px}
.mobile-nav a{display:block;padding:12px 0;border-bottom:1px solid var(--border);font-size:0.95rem;font-weight:500}
.mobile-nav a:hover{color:var(--primary)}

/* ===== 滚动条 ===== */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:#f1f1f1}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:3px}

/* ===== 动画 ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.fade-in-up{animation:fadeInUp 0.6s ease forwards}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:shimmer 1.5s infinite}

/* ===== 内容详情页 ===== */
.article-body{font-size:1rem;line-height:1.9;color:var(--text-main)}
.article-body h2{font-size:1.4rem;font-weight:700;margin:32px 0 14px;color:var(--secondary)}
.article-body h3{font-size:1.15rem;font-weight:700;margin:24px 0 10px;color:var(--secondary)}
.article-body p{margin-bottom:16px}
.article-body img{border-radius:var(--radius);margin:20px 0;width:100%}
.article-body ul{padding-left:20px;margin-bottom:16px}
.article-body ul li{margin-bottom:8px;list-style:disc}
.article-body blockquote{border-left:4px solid var(--primary);padding:12px 20px;background:#fef2f5;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:20px 0;font-style:italic;color:var(--text-muted)}