/* ============================================
   四虎视频 全站样式表
   品牌色系：品牌粉 #FF6B9D | 梦幻紫 #C44DFF | 深夜紫 #1A0B2E
   ============================================ */

/* === 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","Microsoft YaHei","Hiragino Sans GB",Arial,sans-serif;color:#2D1B4E;background:#FAF5FF;line-height:1.7;overflow-x:hidden}
a{color:#C44DFF;text-decoration:none;transition:color .3s}
a:hover{color:#FF6B9D}
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:#1A0B2E}

/* === 容器 === */
.scqj5{max-width:1200px;margin:0 auto;padding:0 20px}
.hoyzt{padding:60px 0}
.ldk8929f{text-align:center;margin-bottom:40px}
.ldk8929f h2{font-size:2rem;background:linear-gradient(135deg,#FF6B9D,#C44DFF);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;display:inline-block;margin-bottom:10px}
.ldk8929f p{color:#6B5B8D;font-size:1.05rem;max-width:600px;margin:0 auto}

/* === 顶部导航 === */
.g9crs9{background:linear-gradient(135deg,#1A0B2E 0%,#2D1854 100%);position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(26,11,46,.3)}
.a5o3d1k{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto;height:68px}
.pbxux2p2{display:flex;align-items:center;gap:10px}
.pbxux2p2 img{height:42px;width:auto}
.pbxux2p2 span{color:#fff;font-size:1.3rem;font-weight:700;letter-spacing:1px}
.m8d5d7{display:flex;gap:6px;align-items:center}
.m8d5d7 a{color:rgba(255,255,255,.85);padding:8px 16px;border-radius:8px;font-size:.95rem;transition:all .3s}
.m8d5d7 a:hover,.m8d5d7 a.active{background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff}
.vnsxl{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.vnsxl span{width:24px;height:2px;background:#fff;border-radius:2px;transition:all .3s}

/* === 搜索框 === */
.fbxohpl{background:linear-gradient(135deg,#2D1854,#1A0B2E);padding:12px 0;border-bottom:1px solid rgba(196,77,255,.2)}
.bwqt4x{max-width:600px;margin:0 auto;display:flex;gap:8px;padding:0 20px}
.bwqt4x input{flex:1;padding:10px 18px;border:2px solid rgba(196,77,255,.3);border-radius:25px;background:rgba(255,255,255,.08);color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.bwqt4x input::placeholder{color:rgba(255,255,255,.4)}
.bwqt4x input:focus{border-color:#FF6B9D}
.bwqt4x button{padding:10px 24px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff;border:none;border-radius:25px;cursor:pointer;font-size:.95rem;transition:transform .2s}
.bwqt4x button:hover{transform:scale(1.05)}

/* === Hero Banner === */
.wfnux52{position:relative;height:520px;overflow:hidden;background:#1A0B2E}
.rfgzor1{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.6)}
.mo5vdb{position:absolute;inset:0;background:linear-gradient(180deg,rgba(26,11,46,.3) 0%,rgba(26,11,46,.85) 100%)}
.ng1fv{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:0 20px}
.ng1fv h1{font-size:2.8rem;color:#fff;margin-bottom:16px;text-shadow:0 2px 20px rgba(196,77,255,.5)}
.ng1fv h1 em{font-style:normal;color:#FF6B9D}
.ng1fv p{color:rgba(255,255,255,.85);font-size:1.15rem;max-width:650px;margin-bottom:28px}
.nl1r0lf{display:flex;gap:16px;flex-wrap:wrap;justify-content:center}
.n58tmz83{display:inline-block;padding:12px 32px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.n58tmz83:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,107,157,.4);color:#fff}
.nd9mcjx{display:inline-block;padding:12px 32px;border:2px solid rgba(255,255,255,.5);color:#fff;border-radius:30px;font-size:1rem;font-weight:600;transition:all .3s}
.nd9mcjx:hover{border-color:#FF6B9D;color:#FF6B9D}

/* === 视频卡片网格 === */
.uwkj7n{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.zo5nwtem{position:relative;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 4px 20px rgba(26,11,46,.08);transition:all .3s;cursor:pointer}
.zo5nwtem:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(196,77,255,.15)}
.n1mno{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1A0B2E}
.n1mno img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.zo5nwtem:hover .n1mno img{transform:scale(1.08)}
.ysju877{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s;background:rgba(26,11,46,.4)}
.zo5nwtem:hover .ysju877{opacity:1}
.ysju877 i{width:56px;height:56px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(255,107,157,.5)}
.ysju877 i::after{content:"";display:block;width:0;height:0;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff;margin-left:4px}
.yjxupe{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;padding:2px 8px;border-radius:4px;font-size:.8rem}
.ae3xr{padding:14px 16px}
.ae3xr h3{font-size:1rem;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.wm8nb7e{display:flex;gap:12px;color:#8B7BAA;font-size:.85rem}
.wm8nb7e span{display:flex;align-items:center;gap:4px}
.ubt0xnlu{display:inline-block;padding:2px 10px;background:linear-gradient(135deg,rgba(255,107,157,.1),rgba(196,77,255,.1));color:#C44DFF;border-radius:12px;font-size:.75rem;margin-top:8px}

/* === 模块卡片 === */
.mazw3e8{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.zbn8w{background:#fff;border-radius:16px;padding:30px 24px;text-align:center;box-shadow:0 4px 20px rgba(26,11,46,.06);transition:all .3s;border:1px solid rgba(196,77,255,.08)}
.zbn8w:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(196,77,255,.12);border-color:rgba(196,77,255,.2)}
.s7bius48{width:64px;height:64px;margin:0 auto 16px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.zbn8w h3{font-size:1.15rem;margin-bottom:8px}
.zbn8w p{color:#6B5B8D;font-size:.92rem;line-height:1.6}

/* === 专家展示 === */
.vh2qjw{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:28px}
.w2vnbab{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(26,11,46,.06);transition:all .3s;text-align:center}
.w2vnbab:hover{transform:translateY(-4px);box-shadow:0 12px 35px rgba(196,77,255,.12)}
.ctfixk{width:120px;height:120px;border-radius:50%;margin:24px auto 16px;overflow:hidden;border:3px solid #C44DFF;padding:3px}
.ctfixk img{width:100%;height:100%;border-radius:50%;object-fit:cover}
.w2vnbab h3{font-size:1.1rem;margin-bottom:4px}
.w2vnbab .expert-title{color:#C44DFF;font-size:.9rem;margin-bottom:10px}
.w2vnbab p{color:#6B5B8D;font-size:.88rem;padding:0 20px;margin-bottom:16px;line-height:1.6}
.l1ai71{display:flex;gap:10px;justify-content:center;padding-bottom:20px}
.l1ai71 a{padding:6px 16px;border-radius:20px;font-size:.85rem;transition:all .3s}
.l1ai71 .ye8jdp{background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff}
.l1ai71 .qjznl{border:1px solid #C44DFF;color:#C44DFF}
.l1ai71 .qjznl:hover{background:#C44DFF;color:#fff}

/* === 品牌Logo墙 === */
.z22gpm{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;align-items:center}
.z22gpm .ufgw0p{width:140px;height:70px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 12px rgba(26,11,46,.06);padding:12px;transition:all .3s;border:1px solid rgba(196,77,255,.08)}
.z22gpm .ufgw0p:hover{box-shadow:0 6px 20px rgba(196,77,255,.15);border-color:rgba(196,77,255,.2)}
.z22gpm .ufgw0p span{font-size:.85rem;font-weight:600;color:#6B5B8D;text-align:center}

/* === FAQ === */
.rms1ftj6{max-width:800px;margin:0 auto}
.b4f5f{background:#fff;border-radius:12px;margin-bottom:12px;overflow:hidden;box-shadow:0 2px 12px rgba(26,11,46,.04);border:1px solid rgba(196,77,255,.08)}
.v93va{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1rem;transition:background .3s}
.v93va:hover{background:rgba(196,77,255,.04)}
.v93va::after{content:"+";font-size:1.4rem;color:#C44DFF;transition:transform .3s;font-weight:300}
.faq-item.active .v93va::after{transform:rotate(45deg)}
.pdc9y{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px}
.faq-item.active .pdc9y{max-height:300px;padding:0 24px 18px}
.pdc9y p{color:#6B5B8D;font-size:.95rem;line-height:1.7}

/* === 用户评论 === */
.qcgfw8{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.irp52a78{background:#fff;border-radius:14px;padding:24px;box-shadow:0 4px 20px rgba(26,11,46,.06);border:1px solid rgba(196,77,255,.08)}
.ovrg19{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.mezbu{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#FF6B9D,#C44DFF);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
.ebupeq68{font-weight:600;font-size:.95rem}
.h25geen{color:#8B7BAA;font-size:.8rem}
.pmkxzwz{color:#FFD700;font-size:.9rem;margin-bottom:10px;letter-spacing:2px}
.irp52a78 p{color:#4A3B6B;font-size:.93rem;line-height:1.7}

/* === 联系我们 === */
.a9o5ip76{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:28px}
.geblxrf{background:#fff;border-radius:14px;padding:28px;text-align:center;box-shadow:0 4px 20px rgba(26,11,46,.06);border:1px solid rgba(196,77,255,.08)}
.geblxrf h3{font-size:1.1rem;margin-bottom:12px;color:#1A0B2E}
.geblxrf p{color:#6B5B8D;font-size:.92rem;line-height:1.6;margin-bottom:8px}
.geblxrf img{max-width:160px;margin:12px auto 0;border-radius:8px}

/* === How-To指南 === */
.gla95njz{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px;max-width:960px;margin:0 auto}
.wx0r49s8{text-align:center;padding:24px 16px}
.jgcs8{width:48px;height:48px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.3rem;font-weight:700;margin:0 auto 14px}
.wx0r49s8 h3{font-size:1rem;margin-bottom:8px}
.wx0r49s8 p{color:#6B5B8D;font-size:.9rem}

/* === 社交分享 === */
.gvcra3{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.wwzqbxxf{padding:10px 20px;border-radius:25px;color:#fff;font-size:.9rem;transition:all .3s;display:flex;align-items:center;gap:6px;cursor:pointer;border:none}
.wwzqbxxf:hover{transform:translateY(-2px);color:#fff}
.z90yxu{background:#07C160}
.wfy0i{background:#E6162D}
.d5r9iv0r{background:#161823}
.k1d42gl{background:#00A1D6}

/* === 页脚 === */
.gfusd{background:linear-gradient(135deg,#1A0B2E,#2D1854);color:rgba(255,255,255,.7);padding:50px 0 0}
.wpc68{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;margin-bottom:40px}
.daewyw2f h4{color:#fff;font-size:1.05rem;margin-bottom:16px;position:relative;padding-bottom:10px}
.daewyw2f h4::after{content:"";position:absolute;bottom:0;left:0;width:40px;height:2px;background:linear-gradient(135deg,#FF6B9D,#C44DFF)}
.daewyw2f p,.daewyw2f a{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.8}
.daewyw2f a:hover{color:#FF6B9D}
.daewyw2f ul li{margin-bottom:6px}
.daewyw2f ul li a{display:block}
.udyd17d5{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.udyd17d5 img{height:36px}
.udyd17d5 span{color:#fff;font-size:1.1rem;font-weight:700}
.dkva9{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.85rem}
.dkva9 p{color:rgba(255,255,255,.5)}
.kzcq0zmv{display:flex;gap:20px;margin-top:12px}
.kzcq0zmv img{width:100px;height:100px;border-radius:8px}
.fdzs8uki{font-size:.8rem;text-align:center;margin-top:6px;color:rgba(255,255,255,.5)}

/* === 面包屑 === */
.e8va0{padding:14px 0;font-size:.9rem;color:#8B7BAA}
.e8va0 a{color:#C44DFF}
.e8va0 span{margin:0 8px;color:#8B7BAA}

/* === 内页Banner === */
.mydvtx0{height:280px;position:relative;overflow:hidden;background:#1A0B2E;display:flex;align-items:center;justify-content:center}
.page-banner-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.4)}
.s5qvu{position:relative;z-index:2;text-align:center;color:#fff}
.s5qvu h1{font-size:2.2rem;color:#fff;margin-bottom:8px}
.s5qvu p{color:rgba(255,255,255,.8);font-size:1.05rem}

/* === 标签云 === */
.rkcdfb5j{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.rkcdfb5j a{padding:6px 16px;background:rgba(196,77,255,.08);color:#C44DFF;border-radius:20px;font-size:.85rem;transition:all .3s;border:1px solid rgba(196,77,255,.15)}
.rkcdfb5j a:hover{background:linear-gradient(135deg,#FF6B9D,#C44DFF);color:#fff;border-color:transparent}

/* === 数据统计 === */
.lrhdaf{background:linear-gradient(135deg,#FF6B9D,#C44DFF);padding:40px 0}
.ppnxgews{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.qu4wh6hg h3{font-size:2.2rem;color:#fff;font-weight:700}
.qu4wh6hg p{color:rgba(255,255,255,.85);font-size:.95rem;margin-top:4px}

/* === 内容区 === */
.j1us8st{padding:40px 0}
.j1us8st article{background:#fff;border-radius:16px;padding:36px;box-shadow:0 4px 20px rgba(26,11,46,.06);margin-bottom:28px}
.j1us8st article h2{font-size:1.5rem;margin-bottom:16px;color:#1A0B2E}
.j1us8st article p{color:#4A3B6B;line-height:1.8;margin-bottom:14px}

/* === 响应式 === */
@media(max-width:768px){
  .m8d5d7{display:none;position:absolute;top:68px;left:0;right:0;background:#1A0B2E;flex-direction:column;padding:16px;gap:4px;box-shadow:0 8px 20px rgba(0,0,0,.3)}
  .nav-menu.show{display:flex}
  .vnsxl{display:flex}
  .wfnux52{height:400px}
  .ng1fv h1{font-size:1.8rem}
  .ng1fv p{font-size:1rem}
  .hoyzt{padding:40px 0}
  .ldk8929f h2{font-size:1.5rem}
  .uwkj7n{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
  .ppnxgews{grid-template-columns:repeat(2,1fr)}
  .wpc68{grid-template-columns:1fr}
  .vh2qjw{grid-template-columns:1fr 1fr}
  .mydvtx0{height:200px}
  .s5qvu h1{font-size:1.6rem}
}
@media(max-width:480px){
  .wfnux52{height:340px}
  .ng1fv h1{font-size:1.5rem}
  .uwkj7n{grid-template-columns:1fr}
  .vh2qjw{grid-template-columns:1fr}
  .mazw3e8{grid-template-columns:1fr}
  .qcgfw8{grid-template-columns:1fr}
  .a9o5ip76{grid-template-columns:1fr}
  .gla95njz{grid-template-columns:1fr}
  .ppnxgews{grid-template-columns:1fr 1fr}
  .pbxux2p2 span{font-size:1rem}
}

/* === 懒加载 === */
img[loading="lazy"]{opacity:0;transition:opacity .5s}
img[loading="lazy"].loaded,img[loading="lazy"][src]{opacity:1}

/* === 动画 === */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.du2jcfmd{animation:fadeInUp .6s ease forwards}

/* === 暗色区块 === */
.f78pj{background:linear-gradient(135deg,#1A0B2E,#2D1854);color:#fff}
.f78pj .ldk8929f h2{color:#fff;-webkit-text-fill-color:#fff}
.f78pj .ldk8929f p{color:rgba(255,255,255,.7)}
.f78pj .zbn8w{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.1)}
.f78pj .zbn8w h3{color:#fff}
.f78pj .zbn8w p{color:rgba(255,255,255,.65)}

/* === H5 Video元素 === */
.ikfrv11{display:none;position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:1}
.ov6uj{position:relative;z-index:2;width:100%;height:100%;object-fit:cover}
.n1mno{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1A0B2E}
.ysju877{z-index:3}
.yjxupe{z-index:3}

/* === 回到顶部 === */
.k7492gck{display:none;position:fixed;bottom:30px;right:30px;width:48px;height:48px;background:linear-gradient(135deg,#FF6B9D,#C44DFF);border-radius:50%;align-items:center;justify-content:center;color:#fff;font-size:1.4rem;cursor:pointer;box-shadow:0 4px 20px rgba(196,77,255,.3);z-index:999;border:none;transition:all .3s}
.k7492gck:hover{transform:translateY(-3px);box-shadow:0 8px 30px rgba(196,77,255,.5)}