/* ========================================
   蜜桃视频 - 全站样式表
   bzhongding.com
   ======================================== */

/* Reset & Base */
*,*::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;color:#333;line-height:1.7;background:#f8f9fa}
a{color:#e85d3a;text-decoration:none;transition:color .3s}
a:hover{color:#c94a2a}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

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

/* ========== Header ========== */
.site-header{background:#fff;box-shadow:0 2px 12px 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 0}
.logo-wrap{display:flex;align-items:center;gap:10px}
.logo-wrap img{height:42px;width:auto}
.logo-wrap span{font-size:1.2rem;font-weight:700;color:#333}

/* Navigation */
.main-nav ul{display:flex;gap:6px}
.main-nav a{display:block;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:#fff3f0;color:#e85d3a}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;color:#333}

/* Search Bar */
.search-bar{background:linear-gradient(135deg,#fff3f0,#ffeee8);padding:16px 0}
.search-wrap{display:flex;max-width:680px;margin:0 auto;gap:0}
.search-wrap input{flex:1;padding:12px 20px;border:2px solid #e85d3a;border-right:none;border-radius:25px 0 0 25px;font-size:1rem;outline:none;transition:border-color .3s}
.search-wrap input:focus{border-color:#c94a2a}
.search-wrap button{padding:12px 28px;background:#e85d3a;color:#fff;border:2px solid #e85d3a;border-radius:0 25px 25px 0;font-size:1rem;cursor:pointer;transition:background .3s}
.search-wrap button:hover{background:#c94a2a}

/* ========== Hero ========== */
.hero-section{position:relative;overflow:hidden;min-height:420px;display:flex;align-items:center;background:#1a1a2e}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.6}
.hero-content{position:relative;z-index:2;color:#fff;padding:60px 0}
.hero-content h1{font-size:2.4rem;font-weight:800;margin-bottom:16px;text-shadow:0 2px 8px rgba(0,0,0,.5)}
.hero-content h1 span{color:#ff7b54}
.hero-content p{font-size:1.15rem;max-width:600px;margin-bottom:24px;opacity:.9}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.hero-tags span{background:rgba(255,255,255,.15);backdrop-filter:blur(4px);padding:6px 16px;border-radius:20px;font-size:.85rem}
.hero-btn{display:inline-block;padding:14px 36px;background:#e85d3a;color:#fff;border-radius:30px;font-size:1.05rem;font-weight:600;transition:all .3s;box-shadow:0 4px 15px rgba(232,93,58,.4)}
.hero-btn:hover{background:#c94a2a;transform:translateY(-2px);color:#fff}

/* ========== Section Common ========== */
.section{padding:60px 0}
.section-alt{background:#fff}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:1.8rem;font-weight:700;color:#222;margin-bottom:8px}
.section-title p{color:#777;font-size:1rem}
.section-title h2 span{color:#e85d3a}

/* ========== Video Cards with H5 Video ========== */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:all .3s}
.video-card:hover{transform:translateY(-6px);box-shadow:0 8px 30px rgba(0,0,0,.15)}
.video-thumb{position:relative;padding-top:56.25%;overflow:hidden;cursor:pointer;background:#000}
.video-thumb video,.video-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb video,.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(232,93,58,.9);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;z-index:5;cursor:pointer}
.video-thumb:hover .play-btn{opacity:1}
.play-btn::after{content:'';border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:3px}
.video-duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.8rem;z-index:3}
.video-badge{position:absolute;top:8px;left:8px;background:#e85d3a;color:#fff;padding:2px 10px;border-radius:4px;font-size:.75rem;font-weight:600;z-index:3}
.video-info{padding:16px}
.video-info h3{font-size:1rem;font-weight:600;margin-bottom:8px;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:#fff3f0;color:#e85d3a;padding:2px 10px;border-radius:12px;font-size:.75rem;margin-top:8px}

/* ========== Feature Modules ========== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:#fff;border-radius:12px;padding:28px 20px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .3s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 6px 24px rgba(0,0,0,.12)}
.feature-icon{width:56px;height:56px;margin:0 auto 16px;background:linear-gradient(135deg,#fff3f0,#ffeee8);border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.6rem}
.feature-card h4{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:#222}
.feature-card p{font-size:.88rem;color:#777;line-height:1.6}

/* ========== Entertainment ========== */
.ent-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ent-card{display:flex;gap:20px;background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .3s}
.ent-card:hover{box-shadow:0 6px 24px rgba(0,0,0,.12)}
.ent-card img{width:140px;height:100px;object-fit:cover;border-radius:8px;flex-shrink:0}
.ent-card h4{font-size:1.05rem;font-weight:600;margin-bottom:6px}
.ent-card p{font-size:.88rem;color:#777;line-height:1.5}

/* ========== AI Section ========== */
.ai-section{background:linear-gradient(135deg,#1a1a2e,#16213e);color:#fff}
.ai-section .section-title h2,.ai-section .section-title p{color:#fff}
.ai-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ai-card{background:rgba(255,255,255,.08);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:28px;transition:all .3s}
.ai-card:hover{background:rgba(255,255,255,.14);transform:translateY(-4px)}
.ai-card h4{font-size:1.1rem;margin-bottom:10px;color:#ff7b54}
.ai-card p{font-size:.9rem;color:rgba(255,255,255,.8);line-height:1.6}

/* ========== Experts ========== */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.expert-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);text-align:center;transition:all .3s}
.expert-card:hover{transform:translateY(-4px)}
.expert-card img{width:100%;height:240px;object-fit:cover}
.expert-body{padding:20px}
.expert-body h4{font-size:1.1rem;font-weight:600;margin-bottom:4px}
.expert-body .role{color:#e85d3a;font-size:.88rem;margin-bottom:10px}
.expert-body p{font-size:.85rem;color:#777;line-height:1.5;margin-bottom:14px}
.expert-btns{display:flex;gap:10px;justify-content:center}
.expert-btns a{padding:8px 18px;border-radius:20px;font-size:.85rem;font-weight:500}
.btn-primary{background:#e85d3a;color:#fff}
.btn-primary:hover{background:#c94a2a;color:#fff}
.btn-outline{border:1px solid #e85d3a;color:#e85d3a}
.btn-outline:hover{background:#fff3f0}

/* Expert 5-column grid for 5 experts */
.expert-grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
@media(max-width:1200px){.expert-grid-5{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.expert-grid-5{grid-template-columns:1fr}}

/* ========== Partners ========== */
.partner-wall{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-wall .partner-item{background:#fff;padding:16px 28px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-size:1rem;font-weight:600;color:#555;transition:all .3s}
.partner-wall .partner-item:hover{box-shadow:0 4px 16px rgba(0,0,0,.12);color:#e85d3a}

/* ========== Reviews ========== */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.review-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.review-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.review-avatar{width:44px;height:44px;border-radius:50%;background:#e85d3a;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem}
.review-name{font-weight:600;font-size:.95rem}
.review-stars{color:#ffc107;font-size:.9rem}
.review-card p{font-size:.9rem;color:#555;line-height:1.6}
.review-date{font-size:.8rem;color:#aaa;margin-top:8px}

/* ========== FAQ ========== */
.faq-list{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 8px rgba(0,0,0,.05);overflow:hidden}
.faq-question{padding:18px 24px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .3s}
.faq-question:hover{background:#fff3f0}
.faq-question::after{content:'+';font-size:1.3rem;color:#e85d3a;transition:transform .3s}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:all .4s ease;color:#666;font-size:.92rem;line-height:1.7}
.faq-item.active .faq-answer{padding:0 24px 18px;max-height:500px}

/* ========== Contact ========== */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.contact-info{background:#fff;border-radius:12px;padding:30px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.contact-info h3{font-size:1.2rem;font-weight:600;margin-bottom:16px;color:#222}
.contact-item{display:flex;gap:12px;margin-bottom:14px;font-size:.92rem;color:#555}
.contact-item strong{color:#333;min-width:80px}
.contact-qr{display:flex;gap:24px;margin-top:20px}
.contact-qr .qr-box{text-align:center}
.contact-qr .qr-box img{width:140px;height:140px;border-radius:8px;margin-bottom:8px}
.contact-qr .qr-box span{font-size:.85rem;color:#777}

/* How-To Guide */
.howto-steps{display:flex;gap:20px;flex-wrap:wrap;justify-content:center;margin-top:24px}
.howto-step{background:#fff;border-radius:12px;padding:24px;text-align:center;flex:1;min-width:200px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.howto-step .step-num{width:40px;height:40px;background:#e85d3a;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-weight:700}
.howto-step h5{font-size:.95rem;font-weight:600;margin-bottom:6px}
.howto-step p{font-size:.85rem;color:#777}

/* ========== Credentials / EEAT ========== */
.credentials-bar{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;padding:30px 0}
.credential-item{display:flex;align-items:center;gap:10px;background:#fff;padding:14px 24px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,.06);font-size:.92rem;color:#555}
.credential-item .cred-icon{width:40px;height:40px;background:linear-gradient(135deg,#fff3f0,#ffeee8);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}

/* Author Info */
.author-info{display:flex;align-items:center;gap:12px;padding:12px 0;margin-bottom:16px;border-bottom:1px solid #f0f0f0;font-size:.88rem;color:#999}
.author-info strong{color:#333}

/* ========== Social Share ========== */
.share-bar{display:flex;gap:12px;justify-content:center;padding:20px 0}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:25px;color:#fff;font-size:.9rem;font-weight:500;transition:all .3s}
.share-btn:hover{transform:translateY(-2px);color:#fff}
.share-wechat{background:#07c160}
.share-weibo{background:#e6162d}
.share-douyin{background:#161823}
.share-bilibili{background:#00a1d6}

/* ========== Footer ========== */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.7);padding:40px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin-bottom:30px}
.footer-col h4{color:#fff;font-size:1rem;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.88rem;margin-bottom:8px;transition:color .3s}
.footer-col a:hover{color:#ff7b54}
.footer-col p{font-size:.88rem;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;font-size:.85rem}
.footer-bottom a{color:#ff7b54}
.footer-legal{margin-top:8px;font-size:.8rem;color:rgba(255,255,255,.4)}
.footer-legal a{color:rgba(255,255,255,.5);margin:0 8px}
.footer-legal a:hover{color:#ff7b54}

/* ========== Breadcrumb ========== */
.breadcrumb{padding:12px 0;font-size:.88rem;color:#999}
.breadcrumb a{color:#e85d3a}
.breadcrumb span{margin:0 6px;color:#ccc}

/* ========== Back to Top ========== */
#backToTop{display:none;position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:#e85d3a;color:#fff;border:none;border-radius:50%;font-size:1.2rem;cursor:pointer;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(232,93,58,.4);z-index:999;transition:all .3s}
#backToTop:hover{background:#c94a2a;transform:translateY(-2px)}

/* ========== Responsive ========== */
@media(max-width:992px){
  .video-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .ai-grid{grid-template-columns:repeat(2,1fr)}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 4px 12px rgba(0,0,0,.1);padding:16px}
  .main-nav.show{display:block}
  .main-nav ul{flex-direction:column}
  .mobile-menu-btn{display:block}
  .hero-content h1{font-size:1.6rem}
  .video-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:1fr}
  .ai-grid{grid-template-columns:1fr}
  .expert-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .share-bar{flex-wrap:wrap}
  .section{padding:40px 0}
  .section-title h2{font-size:1.4rem}
  .credentials-bar{flex-direction:column;align-items:center}
}

/* ========== Image Display ========== */
img{opacity:1}

/* ========== Inner Page Modules ========== */
.page-hero{background:linear-gradient(135deg,#e85d3a,#ff7b54);color:#fff;padding:50px 0;text-align:center}
.page-hero h1{font-size:2rem;font-weight:700;margin-bottom:8px}
.page-hero p{opacity:.9;font-size:1rem}

.content-section{padding:50px 0}
.content-section h2{font-size:1.5rem;font-weight:700;margin-bottom:20px;color:#222}
.content-section h3{font-size:1.2rem;font-weight:600;margin-bottom:14px;color:#333}
.content-section p{margin-bottom:16px;color:#555;line-height:1.8}

/* Sidebar Modules */
.page-layout{display:grid;grid-template-columns:1fr 320px;gap:30px}
.sidebar-module{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.sidebar-module h4{font-size:1rem;font-weight:600;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid #fff3f0;color:#222}
.sidebar-module a{display:block;padding:8px 0;color:#555;font-size:.9rem;border-bottom:1px solid #f5f5f5}
.sidebar-module a:hover{color:#e85d3a}

@media(max-width:992px){
  .page-layout{grid-template-columns:1fr}
}

/* MCP placeholder */
.mcp-widget{background:#f8f9fa;border:1px dashed #ddd;border-radius:8px;padding:20px;text-align:center;color:#999;font-size:.9rem;margin-top:20px}