/* ============================================
   四虎 - 原创样式表
   品牌色系：糖心粉红 #E8456B / 深紫夜空 #2D1B4E / 暖橙光 #FFB347
   ============================================ */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;color:#1A1A2E;background:#FFF5F7;line-height:1.7;overflow-x:hidden}
a{color:#E8456B;text-decoration:none;transition:color .3s}
a:hover{color:#FFB347}
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:#2D1B4E}

/* --- Container --- */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.e4y1bly{text-align:center;margin-bottom:40px;font-size:2rem;position:relative;padding-bottom:15px}
.e4y1bly::after{content:'';display:block;width:80px;height:4px;background:linear-gradient(135deg,#E8456B,#FFB347);margin:12px auto 0;border-radius:2px}
.gs4qn5{text-align:center;color:#666;font-size:1.05rem;margin-top:-25px;margin-bottom:35px}
.smhlnr{padding:70px 0}

/* --- Header / Navigation --- */
.wig3xw8g{background:#2D1B4E;position:sticky;top:0;z-index:1000;box-shadow:0 2px 20px rgba(0,0,0,.15)}
.msgm8{display:flex;align-items:center;justify-content:space-between;padding:0 20px;max-width:1200px;margin:0 auto;height:70px}
.xgk4d{display:flex;align-items:center;gap:10px}
.xgk4d img{height:45px;width:auto}
.rmozgifr{color:#fff;font-size:1.3rem;font-weight:700;white-space:nowrap}
.rmozgifr span{color:#FFB347}

/* Nav */
.main-nav{display:flex;align-items:center;gap:0}
.main-nav a{color:rgba(255,255,255,.85);padding:0 16px;font-size:.95rem;height:70px;display:flex;align-items:center;transition:all .3s;position:relative}
.main-nav a:hover,.main-nav a.active{color:#FFB347;background:rgba(255,255,255,.05)}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background:linear-gradient(135deg,#E8456B,#FFB347);transition:width .3s;border-radius:2px}
.main-nav a:hover::after,.main-nav a.active::after{width:70%}

/* Mobile Nav Toggle */
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.nav-toggle span{display:block;width:25px;height:2px;background:#fff;transition:.3s}

/* Search Bar */
.search-bar{background:rgba(45,27,78,.5);border-bottom:1px solid rgba(255,255,255,.08);padding:10px 0}
.search-bar-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:10px}
.search-bar input{flex:1;padding:10px 18px;border:2px solid rgba(232,69,107,.3);border-radius:25px;background:rgba(255,255,255,.08);color:#fff;font-size:.95rem;outline:none;transition:border-color .3s}
.search-bar input::placeholder{color:rgba(255,255,255,.5)}
.search-bar input:focus{border-color:#E8456B;background:rgba(255,255,255,.12)}
.search-bar button{padding:10px 24px;background:linear-gradient(135deg,#E8456B,#FFB347);border:none;color:#fff;border-radius:25px;cursor:pointer;font-size:.95rem;font-weight:600;transition:transform .2s,box-shadow .2s}
.search-bar button:hover{transform:translateY(-1px);box-shadow:0 4px 15px rgba(232,69,107,.4)}

/* --- Hero Banner --- */
.qem1sj{position:relative;height:520px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.wmbs0f{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(.55)}
.y6i1e6qr{position:absolute;inset:0;background:linear-gradient(135deg,rgba(45,27,78,.7),rgba(232,69,107,.3))}
.j7nbu8q0{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.j7nbu8q0 h1{font-size:2.8rem;margin-bottom:15px;text-shadow:0 2px 10px rgba(0,0,0,.3)}
.j7nbu8q0 p{font-size:1.2rem;margin-bottom:30px;opacity:.9;max-width:700px;margin-left:auto;margin-right:auto}
.gvrjn0{display:inline-block;padding:14px 40px;background:linear-gradient(135deg,#E8456B,#FFB347);color:#fff;border-radius:30px;font-size:1.1rem;font-weight:600;transition:transform .3s,box-shadow .3s}
.gvrjn0:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(232,69,107,.4);color:#fff}

/* --- Breadcrumb --- */
.nqr9zb01{padding:15px 0;font-size:.9rem;color:#666}
.nqr9zb01 a{color:#E8456B}
.nqr9zb01 span{margin:0 8px;color:#999}

/* --- Video Cards Grid --- */
.rou8j{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.g50jl{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;cursor:pointer}
.g50jl:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(232,69,107,.15)}
.g50jl .tenil9{position:relative;padding-top:56.25%;overflow:hidden;background:#2D1B4E}
.g50jl .tenil9 img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s}
.g50jl:hover .tenil9 img{transform:scale(1.05)}
.g50jl .yx5mn0{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:55px;height:55px;background:rgba(232,69,107,.85);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .3s,transform .3s}
.g50jl .yx5mn0::after{content:'';border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.g50jl:hover .yx5mn0{background:rgba(255,179,71,.9);transform:translate(-50%,-50%) scale(1.1)}
.g50jl .xnzp3x{padding:18px}
.g50jl .jv73w{font-size:1.05rem;font-weight:600;color:#2D1B4E;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.g50jl .c5dls{display:flex;gap:15px;font-size:.85rem;color:#888}
.g50jl .c5dls i{margin-right:3px}
.g50jl .ki00jd3{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.g50jl .gi0aglid{padding:3px 10px;background:rgba(232,69,107,.08);color:#E8456B;border-radius:12px;font-size:.78rem}

/* --- Feature Modules --- */
.lu9jsjh{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.yx2druqx{background:#fff;border-radius:12px;padding:30px 25px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:transform .3s}
.yx2druqx:hover{transform:translateY(-5px)}
.yx2druqx .umbl2{width:65px;height:65px;margin:0 auto 18px;background:linear-gradient(135deg,#E8456B,#FFB347);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#fff}
.yx2druqx h3{font-size:1.15rem;margin-bottom:10px;color:#2D1B4E}
.yx2druqx p{font-size:.92rem;color:#666;line-height:1.6}

/* --- Expert Section --- */
.gp9yzn99{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:25px}
.jnmgvtbs{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);text-align:center;transition:transform .3s}
.jnmgvtbs:hover{transform:translateY(-5px)}
.jnmgvtbs .plat3{width:120px;height:120px;border-radius:50%;margin:25px auto 15px;object-fit:cover;border:4px solid rgba(232,69,107,.2)}
.jnmgvtbs h4{font-size:1.1rem;color:#2D1B4E;margin-bottom:5px}
.jnmgvtbs .zydgu{color:#E8456B;font-size:.88rem;margin-bottom:12px}
.jnmgvtbs .d06jgkh{padding:0 20px;font-size:.88rem;color:#666;line-height:1.6;margin-bottom:15px}
.jnmgvtbs .ka8hs79l{display:flex;gap:10px;justify-content:center;padding:0 20px 25px}
.jnmgvtbs .ax8zs0ih{padding:7px 18px;border-radius:20px;font-size:.82rem;font-weight:600;border:none;cursor:pointer;transition:all .3s}
.jk8g9g4{background:linear-gradient(135deg,#E8456B,#FFB347);color:#fff}
.jk8g9g4:hover{box-shadow:0 4px 15px rgba(232,69,107,.3);color:#fff}
.amyf3a{border:2px solid #E8456B;color:#E8456B;background:transparent}
.amyf3a:hover{background:#E8456B;color:#fff}

/* --- FAQ Section --- */
.kqfli{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 2px 10px rgba(0,0,0,.04);overflow:hidden}
.faq-question{padding:18px 25px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:#2D1B4E;transition:background .3s}
.faq-question:hover{background:rgba(232,69,107,.03)}
.faq-question::after{content:'+';font-size:1.4rem;color:#E8456B;transition:transform .3s;font-weight:400}
.faq-item.active .faq-question::after{transform:rotate(45deg)}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:max-height .4s ease,padding .4s ease;color:#555;font-size:.95rem;line-height:1.7}
.faq-item.active .faq-answer{max-height:300px;padding:0 25px 20px}

/* --- Reviews --- */
.axxqk{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:25px}
.x5acgtnh{background:#fff;border-radius:12px;padding:25px;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.x5acgtnh .nubvsn{color:#FFB347;font-size:1.1rem;margin-bottom:10px;letter-spacing:2px}
.x5acgtnh .yyjs2s{font-size:.95rem;color:#444;line-height:1.7;margin-bottom:15px;font-style:italic}
.x5acgtnh .mf6ug{display:flex;align-items:center;gap:10px}
.x5acgtnh .adcwazop{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#E8456B,#FFB347);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem}
.x5acgtnh .uvmk1{font-weight:600;color:#2D1B4E;font-size:.9rem}
.x5acgtnh .ljywp{font-size:.8rem;color:#999}

/* --- Partners --- */
.sb70wg{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.sb70wg .fgivl{padding:15px 25px;background:#fff;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.04);font-size:1rem;font-weight:600;color:#2D1B4E;transition:transform .3s}
.sb70wg .fgivl:hover{transform:scale(1.05)}

/* --- Contact Section --- */
.ut42tf{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.yh3mqs{background:#fff;border-radius:12px;padding:30px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.05)}
.yh3mqs h4{color:#2D1B4E;margin-bottom:10px;font-size:1.05rem}
.yh3mqs p{color:#666;font-size:.92rem;line-height:1.6}
.yh3mqs .o4rywz{width:50px;height:50px;margin:0 auto 15px;background:linear-gradient(135deg,#E8456B,#FFB347);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.3rem;color:#fff}

/* --- How-To Guide --- */
.p5h5in{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:25px;margin-top:30px}
.cw1uvh{text-align:center;padding:25px 20px}
.cw1uvh .ezkbga{width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#E8456B,#FFB347);color:#fff;font-size:1.3rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 15px}
.cw1uvh h4{color:#2D1B4E;margin-bottom:8px;font-size:1rem}
.cw1uvh p{color:#666;font-size:.88rem}

/* --- Share Buttons --- */
.tsg9dd{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.share-btn{padding:10px 22px;border-radius:25px;font-size:.88rem;font-weight:600;color:#fff;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.share-btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(0,0,0,.15)}
.e89ng0i{background:#07C160}
.a1qmx2r{background:#E6162D}
.f9ick2{background:#1A1A2E}
.orfvsul6{background:#00A1D6}

/* --- Footer --- */
.clh8x{background:#2D1B4E;color:rgba(255,255,255,.7);padding:50px 0 0}
.b0sj5zir{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px;max-width:1200px;margin:0 auto;padding:0 20px}
.fmkzm h4{color:#FFB347;margin-bottom:15px;font-size:1.05rem}
.fmkzm p,.fmkzm a{color:rgba(255,255,255,.6);font-size:.9rem;line-height:1.8}
.fmkzm a:hover{color:#FFB347}
.fmkzm .qvtotmco{height:40px;margin-bottom:12px}
.kcq0d{width:120px;border-radius:8px;margin-top:10px}
.hpc2uo{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding:20px;text-align:center;font-size:.85rem}
.hpc2uo a{color:#FFB347}

/* --- Video Player Page --- */
.pwbv2u{position:relative;padding-top:56.25%;background:#000;border-radius:12px;overflow:hidden;margin-bottom:30px}
.pwbv2u video,.pwbv2u iframe{position:absolute;inset:0;width:100%;height:100%}
.zmhqm0{margin-bottom:30px}
.zmhqm0 h1{font-size:1.8rem;margin-bottom:12px}
.zmhqm0 .nt3f1p{display:flex;flex-wrap:wrap;gap:20px;color:#666;font-size:.92rem;margin-bottom:15px}
.zmhqm0 .uld73{color:#444;line-height:1.8;font-size:.95rem}
.gzk6xnt h3{font-size:1.3rem;margin-bottom:20px;color:#2D1B4E}

/* --- About Page --- */
.ez2ay4{padding:80px 0;text-align:center;background:linear-gradient(135deg,rgba(45,27,78,.9),rgba(232,69,107,.6));color:#fff}
.ez2ay4 h1{font-size:2.4rem;color:#fff;margin-bottom:15px}
.ez2ay4 p{font-size:1.1rem;opacity:.9;max-width:700px;margin:0 auto}
.tpmnb9{padding:60px 0}
.tpmnb9 h2{color:#2D1B4E;margin-bottom:20px}
.tpmnb9 p{color:#444;line-height:1.8;margin-bottom:20px}

/* --- Stats Bar --- */
.slu067{background:linear-gradient(135deg,#2D1B4E,#E8456B);padding:50px 0;color:#fff}
.noydkjc5{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.oey4vn .ce06gj{font-size:2.5rem;font-weight:700;color:#FFB347}
.oey4vn .xbzyhw{font-size:.95rem;opacity:.8;margin-top:5px}

/* --- Article Cards --- */
.wsnk5uo5{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}
.nbjh4kt{background:#fff;border-radius:12px;padding:25px;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:transform .3s}
.nbjh4kt:hover{transform:translateY(-5px)}
.nbjh4kt .zow51{font-size:.82rem;color:#E8456B;font-weight:600;margin-bottom:8px}
.nbjh4kt h3{font-size:1.05rem;margin-bottom:10px;line-height:1.4}
.nbjh4kt h3 a{color:#2D1B4E;transition:color .3s}
.nbjh4kt h3 a:hover{color:#E8456B}
.nbjh4kt p{font-size:.9rem;color:#666;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.nbjh4kt .kyxa24{font-size:.78rem;color:#FFB347;font-weight:600}

/* --- Lazy Load --- */
.lazy{opacity:0;transition:opacity .5s}
.lazy.loaded{opacity:1}

/* --- Responsive --- */
@media(max-width:768px){
  .msgm8{height:60px}
  .main-nav{position:fixed;top:60px;left:0;right:0;background:#2D1B4E;flex-direction:column;transform:translateY(-100%);opacity:0;pointer-events:none;transition:all .3s;padding:10px 0;z-index:999}
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:all}
  .main-nav a{height:48px;padding:0 25px;border-bottom:1px solid rgba(255,255,255,.05)}
  .nav-toggle{display:flex}
  .qem1sj{height:380px}
  .j7nbu8q0 h1{font-size:1.8rem}
  .j7nbu8q0 p{font-size:1rem}
  .e4y1bly{font-size:1.5rem}
  .noydkjc5{grid-template-columns:repeat(2,1fr);gap:15px}
  .oey4vn .ce06gj{font-size:1.8rem}
  .rou8j{grid-template-columns:1fr}
  .lu9jsjh{grid-template-columns:1fr}
  .gp9yzn99{grid-template-columns:1fr}
  .axxqk{grid-template-columns:1fr}
  .wsnk5uo5{grid-template-columns:1fr}
  .b0sj5zir{grid-template-columns:1fr}
  .search-bar-inner{flex-direction:column}
  .search-bar input{width:100%}
}
@media(min-width:769px) and (max-width:1024px){
  .rou8j{grid-template-columns:repeat(2,1fr)}
  .noydkjc5{grid-template-columns:repeat(4,1fr)}
}