/* ===== 抖荫 全站样式 ===== */
/* 原创配色：虎红#E63946 深海蓝#1D3557 暖橙#F4A261 暗夜黑#0A0E17 */

/* Reset & Base */
*,*::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;background:#0A0E17;color:#F1FAEE;line-height:1.7;overflow-x:hidden}
a{color:#F4A261;text-decoration:none;transition:color .3s}
a:hover{color:#E63946}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:#F1FAEE}

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

/* ===== Header ===== */
.3cyw0{background:rgba(10,14,23,.95);backdrop-filter:blur(12px);position:fixed;top:0;left:0;width:100%;z-index:1000;border-bottom:1px solid rgba(230,57,70,.2)}
.5707s2{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.9p2yaj{display:flex;align-items:center;gap:10px}
.9p2yaj img{height:42px;width:auto}
.2bk23{font-size:1.4rem;font-weight:800;color:#E63946;letter-spacing:1px}
.2bk23 span{color:#F4A261}

/* Nav */
.6gvg82qx ul{display:flex;gap:28px;align-items:center}
.6gvg82qx a{color:#A8B2D1;font-size:.95rem;font-weight:500;padding:6px 0;position:relative;transition:color .3s}
.6gvg82qx a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:#E63946;transition:width .3s}
.6gvg82qx a:hover,.6gvg82qx a.active{color:#F1FAEE}
.6gvg82qx a:hover::after,.6gvg82qx a.active::after{width:100%}

/* Mobile menu */
.4as28k5{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:5px}
.4as28k5 span{width:24px;height:2px;background:#F1FAEE;transition:.3s}
.menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.menu-toggle.active span:nth-child(2){opacity:0}
.menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Search Bar */
.tq2g1wo{background:rgba(20,25,38,.9);padding:12px 0;border-bottom:1px solid rgba(168,178,209,.1)}
.tq2g1wo .container{display:flex;justify-content:center}
.rqhpd{display:flex;max-width:600px;width:100%;border-radius:25px;overflow:hidden;border:1px solid rgba(230,57,70,.3)}
.rqhpd input{flex:1;padding:10px 20px;background:rgba(20,25,38,.8);border:none;color:#F1FAEE;font-size:.95rem;outline:none}
.rqhpd input::placeholder{color:#A8B2D1}
.rqhpd button{padding:10px 24px;background:linear-gradient(135deg,#E63946,#c62828);color:#fff;border:none;cursor:pointer;font-size:.95rem;font-weight:600;transition:background .3s}
.rqhpd button:hover{background:linear-gradient(135deg,#c62828,#E63946)}

/* ===== Hero Banner ===== */
.3ye4r{position:relative;height:520px;overflow:hidden;margin-top:62px;display:flex;align-items:center;justify-content:center}
.5uskv{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.5)}
.0lo23{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,23,.3) 0%,rgba(10,14,23,.85) 100%)}
.p4pfi{position:relative;z-index:2;text-align:center;padding:0 20px}
.p4pfi h1{font-size:2.8rem;margin-bottom:16px;text-shadow:0 2px 20px rgba(0,0,0,.5)}
.p4pfi h1 em{font-style:normal;color:#E63946}
.p4pfi p{font-size:1.15rem;color:#A8B2D1;max-width:680px;margin:0 auto 24px}
.m5inrt{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.m5inrt span{padding:6px 18px;border-radius:20px;font-size:.85rem;background:rgba(230,57,70,.15);color:#E63946;border:1px solid rgba(230,57,70,.3)}

/* ===== Section Common ===== */
.section{padding:60px 0}
.zgxan12{text-align:center;margin-bottom:40px}
.zgxan12 h2{font-size:2rem;margin-bottom:10px}
.zgxan12 h2 em{font-style:normal;color:#E63946}
.zgxan12 p{color:#A8B2D1;font-size:1rem;max-width:600px;margin:0 auto}
.wxe3qv{background:#0D1220}

/* ===== Video Card Grid ===== */
.b464yddn{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.6520t{background:#141926;border-radius:12px;overflow:hidden;transition:transform .3s,box-shadow .3s;cursor:pointer;position:relative}
.6520t:hover{transform:translateY(-6px);box-shadow:0 12px 30px rgba(230,57,70,.15)}
.bgtresw{position:relative;overflow:hidden;aspect-ratio:16/9}
.bgtresw img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.6520t:hover .bgtresw img{transform:scale(1.05)}
.qp55v{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(0,0,0,.4)}
.6520t:hover .qp55v{opacity:1}
.qp55v svg{width:52px;height:52px;fill:#E63946;filter:drop-shadow(0 2px 8px rgba(0,0,0,.5))}
.w3nwr30{padding:14px}
.w3nwr30 h4{font-size:.95rem;margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fngqdho0{display:flex;gap:14px;color:#A8B2D1;font-size:.8rem}
.fngqdho0 span{display:flex;align-items:center;gap:4px}
.hsh88xa{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:.75rem}

/* ===== Feature Modules ===== */
.fyyyo4{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.q6g4sz8j{background:#141926;border-radius:12px;padding:30px;text-align:center;transition:transform .3s,border-color .3s;border:1px solid rgba(168,178,209,.08)}
.q6g4sz8j:hover{transform:translateY(-4px);border-color:rgba(230,57,70,.3)}
.2xvq1yg{width:60px;height:60px;margin:0 auto 16px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.6rem}
.feature-icon.red{background:rgba(230,57,70,.15);color:#E63946}
.feature-icon.blue{background:rgba(29,53,87,.3);color:#457B9D}
.feature-icon.orange{background:rgba(244,162,97,.15);color:#F4A261}
.q6g4sz8j h4{font-size:1.05rem;margin-bottom:8px}
.q6g4sz8j p{color:#A8B2D1;font-size:.9rem}

/* ===== AI Section ===== */
.y0pyia3k{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.y0pyia3k img{border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.3)}
.o3o1sh h3{font-size:1.6rem;margin-bottom:14px}
.o3o1sh p{color:#A8B2D1;margin-bottom:16px;font-size:.95rem}
.u3fjzuox{display:flex;flex-wrap:wrap;gap:8px}
.u3fjzuox span{padding:5px 14px;border-radius:16px;font-size:.82rem;background:rgba(29,53,87,.3);color:#457B9D;border:1px solid rgba(69,123,157,.2)}

/* ===== Community ===== */
.kfibp{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.qsgv7iw{background:#141926;border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(168,178,209,.06);transition:all .3s}
.qsgv7iw:hover{border-color:rgba(244,162,97,.3);transform:translateY(-4px)}
.qsgv7iw .icon{font-size:2rem;margin-bottom:12px}
.qsgv7iw h4{font-size:1rem;margin-bottom:6px}
.qsgv7iw p{color:#A8B2D1;font-size:.85rem}

/* ===== Expert Team ===== */
.5e1r8sc1{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.51zwxi4{background:#141926;border-radius:12px;padding:24px;text-align:center;border:1px solid rgba(168,178,209,.06);transition:transform .3s}
.51zwxi4:hover{transform:translateY(-4px)}
.nupz09kf{width:80px;height:80px;border-radius:50%;margin:0 auto 14px;background:linear-gradient(135deg,#E63946,#F4A261);display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff;font-weight:700}
.51zwxi4 h4{font-size:1rem;margin-bottom:4px}
.51zwxi4 .role{color:#F4A261;font-size:.85rem;margin-bottom:8px}
.51zwxi4 p{color:#A8B2D1;font-size:.82rem;margin-bottom:12px}
.v582w4{display:flex;gap:8px;justify-content:center}
.zbssth{padding:6px 14px;border-radius:16px;font-size:.8rem;border:1px solid;cursor:pointer;transition:all .3s;background:transparent}
.btn-sm.primary{border-color:#E63946;color:#E63946}
.btn-sm.primary:hover{background:#E63946;color:#fff}
.btn-sm.secondary{border-color:#A8B2D1;color:#A8B2D1}
.btn-sm.secondary:hover{background:#A8B2D1;color:#0A0E17}

/* ===== Partners ===== */
.5lgibp{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;align-items:center}
.oxtad10{background:#141926;border-radius:10px;padding:16px 28px;border:1px solid rgba(168,178,209,.06);font-weight:600;color:#A8B2D1;font-size:.95rem;transition:all .3s}
.oxtad10:hover{border-color:rgba(230,57,70,.3);color:#F1FAEE}

/* ===== Reviews ===== */
.22bnk{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.l6bct73c{background:#141926;border-radius:12px;padding:24px;border:1px solid rgba(168,178,209,.06)}
.it0bo7i{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.xynzxe6{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#1D3557,#457B9D);display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:.95rem}
.4nfbgtn{font-weight:600;font-size:.95rem}
.qv4nnvt{color:#F4A261;font-size:.85rem;margin-top:2px}
.jey9b{color:#A8B2D1;font-size:.9rem;line-height:1.6}

/* ===== FAQ ===== */
.bj6h4bhz{max-width:800px;margin:0 auto}
.wk94rw8c{background:#141926;border-radius:10px;margin-bottom:12px;border:1px solid rgba(168,178,209,.06);overflow:hidden}
.0a80nb{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:.95rem;transition:background .3s}
.0a80nb:hover{background:rgba(230,57,70,.05)}
.0a80nb .arrow{transition:transform .3s;color:#E63946;font-size:1.2rem}
.faq-item.active .0a80nb .arrow{transform:rotate(180deg)}
.vnuxjvk{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .vnuxjvk{max-height:300px;padding:0 24px 18px}
.vnuxjvk p{color:#A8B2D1;font-size:.9rem;line-height:1.7}

/* ===== Contact ===== */
.fg0ng{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.6ru64{background:#141926;border-radius:12px;padding:28px;text-align:center;border:1px solid rgba(168,178,209,.06)}
.6ru64 h4{font-size:1.05rem;margin-bottom:12px;color:#F4A261}
.6ru64 p{color:#A8B2D1;font-size:.9rem;margin-bottom:6px}
.6ru64 img{max-width:140px;margin:10px auto 0;border-radius:8px}

/* ===== How-To Guide ===== */
.yax6xt{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.9y26j6{text-align:center;padding:20px}
.m5dfvlf{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#E63946,#c62828);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:1.2rem;font-weight:700;color:#fff}
.9y26j6 h4{font-size:.95rem;margin-bottom:6px}
.9y26j6 p{color:#A8B2D1;font-size:.85rem}

/* ===== Share ===== */
.j48pyvyl{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.yr9kbg7h{display:flex;align-items:center;gap:6px;padding:8px 18px;border-radius:20px;font-size:.85rem;border:1px solid rgba(168,178,209,.15);color:#A8B2D1;cursor:pointer;transition:all .3s;background:transparent}
.yr9kbg7h:hover{border-color:#E63946;color:#E63946}

/* ===== Footer ===== */
.tfgqsup{background:#080B12;padding:40px 0 20px;border-top:1px solid rgba(168,178,209,.08)}
.tgztq2ka{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;margin-bottom:30px}
.lh435h h4{font-size:1rem;margin-bottom:14px;color:#F4A261}
.lh435h p,.lh435h a{color:#A8B2D1;font-size:.88rem;display:block;margin-bottom:6px}
.lh435h a:hover{color:#E63946}
.2aks2vbj{display:flex;gap:16px}
.2aks2vbj img{width:110px;border-radius:8px}
.y2ikqp5{text-align:center;padding-top:20px;border-top:1px solid rgba(168,178,209,.06);color:#A8B2D1;font-size:.82rem}
.xomqkhi{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.xomqkhi img{height:32px}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:14px 0;font-size:.85rem;color:#A8B2D1;margin-top:62px}
.breadcrumb a{color:#F4A261}
.breadcrumb span{margin:0 8px;color:#A8B2D1}

/* ===== Buttons ===== */
.btn{display:inline-block;padding:12px 28px;border-radius:25px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.xnhfby{background:linear-gradient(135deg,#E63946,#c62828);color:#fff}
.xnhfby:hover{box-shadow:0 6px 20px rgba(230,57,70,.3);transform:translateY(-2px)}
.iglct{background:transparent;border:1px solid #E63946;color:#E63946}
.iglct:hover{background:#E63946;color:#fff}

/* ===== Inner Page Content ===== */
.4ed91bn3{height:300px;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;margin-top:62px;overflow:hidden}
.2nkb3cak{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.35)}
.9gvaj0{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,14,23,.2),rgba(10,14,23,.9))}
.ybbhc{position:relative;z-index:2}
.ybbhc h1{font-size:2.2rem;margin-bottom:8px}
.ybbhc p{color:#A8B2D1;font-size:1rem}
.is7g794{padding:50px 0}
.is7g794 h2{font-size:1.6rem;margin-bottom:16px;color:#E63946}
.is7g794 h3{font-size:1.3rem;margin-bottom:12px}
.is7g794 p{color:#A8B2D1;font-size:.95rem;margin-bottom:16px;line-height:1.8}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .b464yddn{grid-template-columns:repeat(3,1fr)}
  .fyyyo4{grid-template-columns:repeat(2,1fr)}
  .5e1r8sc1{grid-template-columns:repeat(2,1fr)}
  .kfibp{grid-template-columns:repeat(2,1fr)}
  .fg0ng{grid-template-columns:1fr 1fr}
  .yax6xt{grid-template-columns:repeat(2,1fr)}
  .tgztq2ka{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .4as28k5{display:flex}
  .6gvg82qx{position:fixed;top:62px;left:0;width:100%;background:rgba(10,14,23,.98);padding:20px;transform:translateX(-100%);transition:transform .3s}
  .main-nav.active{transform:translateX(0)}
  .6gvg82qx ul{flex-direction:column;gap:16px}
  .3ye4r{height:400px}
  .p4pfi h1{font-size:1.8rem}
  .b464yddn{grid-template-columns:repeat(2,1fr)}
  .y0pyia3k{grid-template-columns:1fr}
  .22bnk{grid-template-columns:1fr}
  .fg0ng{grid-template-columns:1fr}
  .tgztq2ka{grid-template-columns:1fr}
  .5e1r8sc1{grid-template-columns:1fr}
  .kfibp{grid-template-columns:1fr}
  .yax6xt{grid-template-columns:1fr}
  .fyyyo4{grid-template-columns:1fr}
  .4ed91bn3{height:220px}
}
@media(max-width:480px){
  .b464yddn{grid-template-columns:1fr}
  .3ye4r{height:340px}
  .p4pfi h1{font-size:1.5rem}
  .section{padding:40px 0}
}

/* Lazy load placeholder */
img[data-src]{opacity:0;transition:opacity .5s}
img.loaded{opacity:1}

/* Scrollbar */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:#0A0E17}
::-webkit-scrollbar-thumb{background:#E63946;border-radius:3px}


/* ===== SEO Tag Cloud ===== */
.fbb5dvm{padding:30px 0;background:#0D1220}
.dwapp{text-align:center;font-size:1.1rem;margin-bottom:16px;color:#A8B2D1}
.dwapp em{font-style:normal;color:#E63946}
.5u0xhd{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.5u0xhd a{display:inline-block;padding:6px 16px;border-radius:18px;font-size:.85rem;background:rgba(230,57,70,.08);color:#E63946;border:1px solid rgba(230,57,70,.2);transition:all .3s}
.5u0xhd a:hover{background:rgba(230,57,70,.2);color:#fff}

/* ===== Video Card Enhancements ===== */
.bgtresw video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.bgtresw .wa6pn2{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.th339{position:absolute;top:8px;left:8px;background:rgba(230,57,70,.85);color:#fff;padding:2px 10px;border-radius:10px;font-size:.72rem;z-index:2;font-weight:600}
.wtbdo{color:#A8B2D1;font-size:.82rem;margin-bottom:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ===== Review Date ===== */
.ay2nmz{display:block;margin-top:10px;color:#666;font-size:.78rem}

/* ===== Page Content Enhancements ===== */
.is7g794 h1{font-size:1.8rem;margin-bottom:20px;color:#F1FAEE}
.is7g794 h1 em{font-style:normal;color:#E63946}
.ybbhc h1 em{font-style:normal;color:#E63946}

/* ===== Breadcrumb Enhancements ===== */
.breadcrumb{margin-top:0;padding:14px 0;font-size:.85rem;color:#A8B2D1}
.breadcrumb a{color:#F4A261}
.breadcrumb span{margin:0 4px;color:#A8B2D1}

/* ===== Expert Grid 6-col ===== */
@media(min-width:1025px){
  .5e1r8sc1{grid-template-columns:repeat(3,1fr)}
}

/* ===== Review Grid 3-col ===== */
@media(min-width:1025px){
  .22bnk{grid-template-columns:repeat(3,1fr)}
}