/* ===== 麻豆网站 - 全站样式 ===== */
/* 基础重置 */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#333;background:#f8f9fa;line-height:1.7}
a{color:#e74c3c;text-decoration:none;transition:color .3s}
a:hover{color:#c0392b}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 头部导航 ===== */
.site-header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap .brand-name{font-size:1.2rem;font-weight:700;color:#e74c3c}
.main-nav ul{display:flex;gap:6px}
.main-nav a{padding:8px 16px;border-radius:6px;font-size:.95rem;color:#555;font-weight:500;transition:all .3s}
.main-nav a:hover,.main-nav a.active{background:#e74c3c;color:#fff}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#333}

/* ===== 搜索框 ===== */
.search-bar{background:linear-gradient(135deg,#e74c3c,#c0392b);padding:14px 0}
.search-bar .container{display:flex;justify-content:center}
.search-box{display:flex;max-width:600px;width:100%;background:#fff;border-radius:30px;overflow:hidden;box-shadow:0 4px 15px rgba(0,0,0,.15)}
.search-box input{flex:1;border:none;padding:12px 24px;font-size:1rem;outline:none;color:#333}
.search-box button{background:#e74c3c;color:#fff;border:none;padding:12px 28px;cursor:pointer;font-size:1rem;transition:background .3s}
.search-box button:hover{background:#c0392b}

/* ===== Banner ===== */
.hero-banner{position:relative;overflow:hidden;height:420px;background:#1a1a2e}
.hero-banner img{width:100%;height:100%;object-fit:cover;opacity:.7}
.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:20px;background:linear-gradient(to bottom,rgba(0,0,0,.2),rgba(0,0,0,.6))}
.hero-overlay h1{font-size:2.4rem;color:#fff;margin-bottom:12px;text-shadow:2px 2px 8px rgba(0,0,0,.5)}
.hero-overlay p{font-size:1.15rem;color:rgba(255,255,255,.9);max-width:650px;text-shadow:1px 1px 4px rgba(0,0,0,.4)}

/* ===== 通用区块 ===== */
.section{padding:50px 0}
.section-alt{background:#fff}
.section-title{text-align:center;margin-bottom:36px}
.section-title h2{font-size:1.8rem;color:#222;margin-bottom:8px}
.section-title p{color:#777;font-size:1rem}
.section-title h2 span{color:#e74c3c}

/* ===== 视频卡片网格 ===== */
.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s;cursor:pointer}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;overflow:hidden;aspect-ratio:16/9}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.video-card:hover .video-thumb img{transform:scale(1.05)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:60px;height:60px;background:rgba(231,76,60,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.play-btn::after{content:"";border-style:solid;border-width:12px 0 12px 20px;border-color:transparent transparent transparent #fff;margin-left:4px}
.video-card:hover .play-btn{opacity:1}
.video-info{padding:16px}
.video-info h3{font-size:1.05rem;color:#222;margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.video-meta{display:flex;gap:16px;color:#999;font-size:.85rem}
.video-meta span{display:flex;align-items:center;gap:4px}
.video-tag{display:inline-block;background:#ffeaea;color:#e74c3c;font-size:.75rem;padding:2px 8px;border-radius:10px;margin-top:8px}

/* ===== 栏目模块 ===== */
.module-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.module-card{background:#fff;border-radius:12px;padding:28px;text-align:center;box-shadow:0 4px 16px rgba(0,0,0,.06);transition:transform .3s}
.module-card:hover{transform:translateY(-4px)}
.module-card .icon{font-size:2.5rem;margin-bottom:16px}
.module-card h3{font-size:1.15rem;color:#222;margin-bottom:10px}
.module-card p{color:#777;font-size:.92rem;line-height:1.6}

/* ===== 专家展示 ===== */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.08);display:flex;flex-direction:column;align-items:center;padding:30px 20px;text-align:center}
.expert-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin-bottom:16px;border:3px solid #e74c3c}
.expert-card h3{font-size:1.1rem;color:#222;margin-bottom:6px}
.expert-card .title{color:#e74c3c;font-size:.9rem;margin-bottom:10px}
.expert-card p{color:#777;font-size:.88rem;line-height:1.6;margin-bottom:14px}
.expert-card .btn-group{display:flex;gap:10px}

/* ===== 按钮 ===== */
.btn{display:inline-block;padding:10px 24px;border-radius:25px;font-size:.9rem;font-weight:500;transition:all .3s;border:none;cursor:pointer}
.btn-primary{background:#e74c3c;color:#fff}
.btn-primary:hover{background:#c0392b;color:#fff}
.btn-outline{border:1px solid #e74c3c;color:#e74c3c;background:transparent}
.btn-outline:hover{background:#e74c3c;color:#fff}

/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:14px;box-shadow:0 2px 10px rgba(0,0,0,.05);overflow:hidden}
.faq-question{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;color:#222;font-size:1rem;transition:background .3s}
.faq-question:hover{background:#fef5f5}
.faq-question::after{content:"+";font-size:1.4rem;color:#e74c3c;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#666;font-size:.95rem;line-height:1.7}
.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(280px,1fr));gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.review-card .stars{color:#f39c12;font-size:1.1rem;margin-bottom:10px}
.review-card .content{color:#555;font-size:.95rem;line-height:1.6;margin-bottom:14px;font-style:italic}
.review-card .author{display:flex;align-items:center;gap:10px}
.review-card .author-avatar{width:40px;height:40px;border-radius:50%;background:#e74c3c;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}
.review-card .author-info .name{font-weight:600;color:#222;font-size:.9rem}
.review-card .author-info .date{color:#999;font-size:.8rem}

/* ===== 合作品牌 ===== */
.partner-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-logos .partner-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.06);font-size:1rem;font-weight:600;color:#666;transition:transform .3s}
.partner-logos .partner-item:hover{transform:scale(1.05)}

/* ===== How-To指南 ===== */
.howto-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;max-width:960px;margin:0 auto}
.howto-step{text-align:center;padding:24px}
.howto-step .step-num{width:50px;height:50px;border-radius:50%;background:#e74c3c;color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.3rem;font-weight:700;margin:0 auto 14px}
.howto-step h4{font-size:1.05rem;color:#222;margin-bottom:8px}
.howto-step p{color:#777;font-size:.9rem}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.contact-card{background:#fff;border-radius:12px;padding:28px;box-shadow:0 4px 16px rgba(0,0,0,.06);text-align:center}
.contact-card h4{font-size:1.1rem;color:#222;margin-bottom:12px}
.contact-card p{color:#666;font-size:.92rem;line-height:1.7}
.contact-card img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* ===== 社交分享 ===== */
.share-bar{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:25px;color:#fff;font-size:.9rem;transition:opacity .3s}
.share-btn:hover{opacity:.85;color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* ===== 页脚 ===== */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:40px 0 0}
.footer-inner{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:30px;max-width:1200px;margin:0 auto;padding:0 20px}
.footer-col h4{color:#fff;font-size:1.05rem;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:40px;height:2px;background:#e74c3c}
.footer-col p,.footer-col a{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.8}
.footer-col a:hover{color:#e74c3c}
.footer-col ul li{margin-bottom:6px}
.footer-col img{max-width:120px;border-radius:6px;margin-top:8px}
.footer-bottom{text-align:center;padding:20px;margin-top:30px;border-top:1px solid rgba(255,255,255,.1);font-size:.85rem}
.footer-logo{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.footer-logo img{height:36px}
.footer-logo span{font-size:1.1rem;font-weight:700;color:#fff}

/* ===== 面包屑 ===== */
.breadcrumb{padding:14px 0;font-size:.88rem;color:#999}
.breadcrumb a{color:#e74c3c}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ===== 内页通用 ===== */
.page-hero{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:60px 0;text-align:center;color:#fff}
.page-hero h1{font-size:2rem;margin-bottom:10px}
.page-hero p{color:rgba(255,255,255,.8);font-size:1.05rem}
.page-content{padding:40px 0}
.content-block{background:#fff;border-radius:12px;padding:30px;margin-bottom:28px;box-shadow:0 4px 16px rgba(0,0,0,.06)}
.content-block h2{font-size:1.4rem;color:#222;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #ffeaea}
.content-block h3{font-size:1.15rem;color:#333;margin:16px 0 10px}
.content-block p{color:#666;line-height:1.8;margin-bottom:12px}
.content-block img{border-radius:8px;margin:16px 0}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.tag-list .tag{background:#ffeaea;color:#e74c3c;padding:4px 14px;border-radius:15px;font-size:.85rem}

/* ===== 响应式 ===== */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .main-nav{display:none;width:100%;order:3}
  .main-nav.show{display:block}
  .main-nav ul{flex-direction:column;padding:10px 0}
  .main-nav a{display:block;padding:10px 16px}
  .mobile-menu-btn{display:block}
  .hero-banner{height:280px}
  .hero-overlay h1{font-size:1.6rem}
  .hero-overlay p{font-size:.95rem}
  .section{padding:30px 0}
  .section-title h2{font-size:1.4rem}
  .video-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
  .footer-inner{grid-template-columns:1fr 1fr}
  .expert-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .video-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .howto-steps{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .module-grid{grid-template-columns:1fr}
  .search-box{border-radius:20px}
  .search-box input{padding:10px 16px;font-size:.9rem}
  .search-box button{padding:10px 20px;font-size:.9rem}
}