/* ============================================
   抖荫短视频 - 原创样式表
   配色：珊瑚橙 #E8634A + 深青绿 #1A6B5C + 暖灰 #F5F0EB
   ============================================ */
:root{--coral:#E8634A;--coral-light:#F28A72;--coral-dark:#C94E38;--teal:#1A6B5C;--teal-light:#2A8F7A;--teal-dark:#0F4A3F;--warm-bg:#F5F0EB;--warm-card:#FFFAF6;--dark-text:#2C2420;--mid-text:#5A4F47;--light-text:#8A7F76;--border:#E6DDD4;--shadow:0 4px 20px rgba(44,36,32,.08);--shadow-hover:0 8px 32px rgba(44,36,32,.14);--radius:12px;--radius-sm:8px;--radius-lg:20px;--transition:all .3s cubic-bezier(.4,0,.2,1)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--warm-bg);color:var(--dark-text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--teal);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--coral)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* === 顶部导航 === */
.site-header{background:linear-gradient(135deg,var(--teal-dark),var(--teal));position:sticky;top:0;z-index:1000;box-shadow:0 2px 12px rgba(26,107,92,.25)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto;height:64px}
.logo-area{display:flex;align-items:center;gap:10px}
.logo-area img{height:40px;width:auto;border-radius:6px}
.logo-area h1{font-size:1.3rem;color:#fff;font-weight:700;white-space:nowrap}
.logo-area h1 span{color:var(--coral-light)}
.main-nav{display:flex;gap:4px}
.main-nav a{color:rgba(255,255,255,.85);padding:8px 14px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;transition:var(--transition)}
.main-nav a:hover,.main-nav a.active{background:rgba(255,255,255,.15);color:#fff}
.mobile-toggle{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}

/* === 搜索框 === */
.search-bar{background:var(--teal);padding:12px 0;border-top:1px solid rgba(255,255,255,.1)}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:560px;width:100%;border-radius:28px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.search-box input{flex:1;padding:10px 20px;border:none;font-size:.95rem;outline:none;background:#fff;color:var(--dark-text)}
.search-box button{padding:10px 24px;background:var(--coral);color:#fff;border:none;font-weight:600;cursor:pointer;transition:var(--transition);font-size:.9rem}
.search-box button:hover{background:var(--coral-dark)}

/* === Banner === */
.hero-banner{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;background:linear-gradient(135deg,#1a3a4a 0%,var(--teal-dark) 50%,#2a1a0a 100%)}
.hero-banner .banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.hero-banner .banner-content{position:relative;z-index:2;text-align:center;width:100%;padding:60px 20px}
.hero-banner h2{font-size:2.6rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.4);font-weight:800}
.hero-banner h2 span{color:var(--coral-light)}
.hero-banner p{font-size:1.15rem;color:rgba(255,255,255,.88);max-width:680px;margin:0 auto 28px;line-height:1.8}
.hero-banner .cta-group{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn-primary{display:inline-block;padding:12px 32px;background:var(--coral);color:#fff;border-radius:28px;font-weight:600;font-size:1rem;transition:var(--transition);border:none;cursor:pointer}
.btn-primary:hover{background:var(--coral-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,99,74,.35);color:#fff}
.btn-outline{display:inline-block;padding:12px 32px;border:2px solid rgba(255,255,255,.6);color:#fff;border-radius:28px;font-weight:600;font-size:1rem;transition:var(--transition)}
.btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff;color:#fff}

/* === 面包屑 === */
.breadcrumb{padding:14px 0;font-size:.85rem;color:var(--light-text)}
.breadcrumb a{color:var(--teal)}
.breadcrumb span{margin:0 6px;color:var(--border)}

/* === EEAT信息条 === */
.eeat-bar{display:flex;align-items:center;gap:20px;padding:14px 20px;background:var(--warm-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:28px;flex-wrap:wrap;font-size:.88rem;color:var(--mid-text)}
.eeat-bar .author-info{display:flex;align-items:center;gap:8px}
.eeat-bar .author-info img{width:32px;height:32px;border-radius:50%;object-fit:cover}
.eeat-bar time{color:var(--teal);font-weight:500}

/* === 通用栏目标题 === */
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.9rem;color:var(--dark-text);margin-bottom:10px;font-weight:700}
.section-title h2 span{color:var(--coral)}
.section-title p{color:var(--mid-text);font-size:1rem;max-width:600px;margin:0 auto}
.section-title .tag{display:inline-block;background:var(--coral);color:#fff;padding:4px 14px;border-radius:20px;font-size:.78rem;font-weight:600;margin-bottom:10px}

/* === 内容区块 === */
.content-section{padding:56px 0}
.content-section:nth-child(even){background:#fff}
.content-section:nth-child(odd){background:var(--warm-bg)}

/* === 视频卡片网格 === */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.video-card{background:var(--warm-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.video-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;background:#e0d6cc}
.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.video-thumb .play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0);width:56px;height:56px;background:rgba(232,99,74,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:var(--transition);box-shadow:0 4px 16px rgba(232,99,74,.4)}
.video-thumb .play-btn::after{content:"";border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-card:hover .play-btn{transform:translate(-50%,-50%) scale(1)}
.video-thumb .duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:500}
.video-thumb .badge{position:absolute;top:8px;left:8px;background:var(--coral);color:#fff;padding:3px 10px;border-radius:4px;font-size:.72rem;font-weight:600}
.video-info{padding:14px 16px}
.video-info h3{font-size:.95rem;font-weight:600;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--light-text)}
.video-meta .views{display:flex;align-items:center;gap:4px}
.video-meta .likes{color:var(--coral)}

/* === 横向滚动卡片 === */
.scroll-row{display:flex;gap:18px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.scroll-row::-webkit-scrollbar{height:6px}
.scroll-row::-webkit-scrollbar-track{background:var(--border);border-radius:3px}
.scroll-row::-webkit-scrollbar-thumb{background:var(--coral-light);border-radius:3px}
.scroll-row .video-card{min-width:280px;scroll-snap-align:start;flex-shrink:0}

/* === 专家卡片 === */
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.expert-card{background:var(--warm-card);border-radius:var(--radius-lg);padding:28px 20px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border)}
.expert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.expert-card img{width:96px;height:96px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid var(--coral-light)}
.expert-card h4{font-size:1.05rem;margin-bottom:4px;color:var(--dark-text)}
.expert-card .role{color:var(--coral);font-size:.82rem;font-weight:600;margin-bottom:10px}
.expert-card p{font-size:.85rem;color:var(--mid-text);line-height:1.6;margin-bottom:14px}
.expert-card .btn-sm{display:inline-block;padding:6px 18px;background:var(--teal);color:#fff;border-radius:20px;font-size:.8rem;transition:var(--transition)}
.expert-card .btn-sm:hover{background:var(--teal-dark);color:#fff}

/* === FAQ === */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:var(--warm-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-q{padding:18px 22px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:var(--transition);font-size:.95rem}
.faq-q:hover{color:var(--coral)}
.faq-q::after{content:"+";font-size:1.3rem;color:var(--coral);transition:var(--transition);font-weight:300}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;font-size:.9rem;color:var(--mid-text);line-height:1.8}
.faq-item.open .faq-a{max-height:300px;padding:0 22px 18px}

/* === 用户评论 === */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.review-card{background:var(--warm-card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;position:relative}
.review-card::before{content:"\201C";position:absolute;top:10px;left:16px;font-size:3rem;color:var(--coral-light);opacity:.3;font-family:Georgia,serif;line-height:1}
.review-card .stars{color:#F5A623;margin-bottom:8px;font-size:.9rem;letter-spacing:2px}
.review-card p{font-size:.9rem;color:var(--mid-text);line-height:1.7;margin-bottom:12px;padding-left:8px}
.review-card .reviewer{display:flex;align-items:center;gap:10px;font-size:.82rem;color:var(--light-text)}
.review-card .reviewer strong{color:var(--dark-text)}

/* === 合作品牌墙 === */
.brand-wall{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center;padding:20px 0}
.brand-wall .brand-item{background:var(--warm-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px 28px;font-weight:600;color:var(--mid-text);transition:var(--transition);font-size:.95rem}
.brand-wall .brand-item:hover{border-color:var(--coral);color:var(--coral);box-shadow:var(--shadow)}

/* === 社区统计 === */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:36px 0}
.stat-item{text-align:center;padding:24px 16px;background:var(--warm-card);border-radius:var(--radius);box-shadow:var(--shadow)}
.stat-item .num{font-size:2.2rem;font-weight:800;color:var(--coral);display:block;margin-bottom:4px}
.stat-item .label{font-size:.88rem;color:var(--mid-text)}

/* === 联系信息 === */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.contact-card{background:var(--warm-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px}
.contact-card h4{font-size:1.1rem;margin-bottom:14px;color:var(--teal);border-bottom:2px solid var(--border);padding-bottom:10px}
.contact-card p{font-size:.9rem;color:var(--mid-text);margin-bottom:8px;line-height:1.7}
.contact-card .qr-img{width:140px;margin:12px 0;border-radius:var(--radius-sm)}

/* === 社交分享 === */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:20px;font-size:.85rem;font-weight:500;transition:var(--transition);border:1px solid var(--border);background:var(--warm-card);color:var(--mid-text)}
.share-btn:hover{background:var(--coral);color:#fff;border-color:var(--coral)}

/* === EEAT审核声明 === */
.eeat-notice{background:linear-gradient(135deg,#f0ebe5,#e8e0d6);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;margin:32px 0;font-size:.85rem;color:var(--mid-text);line-height:1.8}
.eeat-notice strong{color:var(--teal)}

/* === 页脚 === */
.site-footer{background:linear-gradient(135deg,var(--teal-dark),#0a2e26);color:rgba(255,255,255,.75);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-grid h4{color:#fff;font-size:1rem;margin-bottom:16px;font-weight:600}
.footer-grid a{display:block;color:rgba(255,255,255,.6);font-size:.88rem;margin-bottom:8px;transition:var(--transition)}
.footer-grid a:hover{color:var(--coral-light)}
.footer-grid .footer-logo img{height:44px;margin-bottom:12px}
.footer-grid .footer-logo p{font-size:.85rem;line-height:1.7}
.footer-bottom{text-align:center;padding:20px 0;font-size:.82rem;color:rgba(255,255,255,.45)}
.footer-bottom a{color:var(--coral-light)}

/* === How-To指南 === */
.howto-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.howto-step{text-align:center;padding:24px 16px;background:var(--warm-card);border-radius:var(--radius);border:1px solid var(--border)}
.howto-step .step-num{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--coral);color:#fff;border-radius:50%;font-size:1.2rem;font-weight:700;margin-bottom:12px}
.howto-step h4{font-size:.95rem;margin-bottom:8px}
.howto-step p{font-size:.83rem;color:var(--mid-text);line-height:1.6}

/* === 标签云 === */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding:16px 0}
.tag-cloud a{display:inline-block;padding:6px 16px;background:var(--warm-card);border:1px solid var(--border);border-radius:20px;font-size:.82rem;color:var(--mid-text);transition:var(--transition)}
.tag-cloud a:hover{background:var(--coral);color:#fff;border-color:var(--coral)}

/* === 内页通用 === */
.page-hero{background:linear-gradient(135deg,var(--teal-dark),var(--teal));padding:48px 0;text-align:center}
.page-hero h2{color:#fff;font-size:2rem;margin-bottom:10px;font-weight:700}
.page-hero h2 span{color:var(--coral-light)}
.page-hero p{color:rgba(255,255,255,.8);font-size:1rem}
.page-content{padding:40px 0}
.article-body{max-width:900px;margin:0 auto}
.article-body h3{font-size:1.3rem;color:var(--teal);margin:28px 0 14px;font-weight:700;border-left:4px solid var(--coral);padding-left:14px}
.article-body h4{font-size:1.1rem;color:var(--dark-text);margin:20px 0 10px}
.article-body p{margin-bottom:16px;line-height:1.85;color:var(--mid-text)}
.article-body img{border-radius:var(--radius);margin:20px 0}

/* === 响应式 === */
@media(max-width:1024px){
.video-grid{grid-template-columns:repeat(3,1fr)}
.expert-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:repeat(2,1fr)}
.stats-bar{grid-template-columns:repeat(2,1fr)}
.howto-steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
.header-inner{flex-wrap:wrap}
.main-nav{display:none;width:100%;flex-direction:column;padding:10px 0}
.main-nav.show{display:flex}
.mobile-toggle{display:block}
.video-grid{grid-template-columns:repeat(2,1fr)}
.review-grid{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr}
.hero-banner h2{font-size:1.8rem}
.hero-banner{min-height:320px}
.section-title h2{font-size:1.5rem}
.eeat-bar{flex-direction:column;align-items:flex-start;gap:8px}
}
@media(max-width:480px){
.video-grid{grid-template-columns:1fr}
.expert-grid{grid-template-columns:1fr}
.stats-bar{grid-template-columns:1fr}
.howto-steps{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.hero-banner h2{font-size:1.4rem}
}