/* ========================================
   四虎传媒 - 原创样式表
   品牌：四虎传媒 | lyd7env.cn
   ======================================== */

/* CSS Reset & Base */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --brand-red:#E84430;
  --brand-dark:#1A1A2E;
  --brand-orange:#FF8C42;
  --bg-primary:#0F0F1A;
  --bg-secondary:#16162A;
  --bg-card:#1E1E36;
  --text-white:#FFFFFF;
  --text-light:#E0E0E0;
  --text-muted:#999999;
  --gradient:linear-gradient(135deg,#E84430,#FF8C42);
  --shadow:0 4px 20px rgba(0,0,0,0.3);
  --radius:12px;
  --transition:all 0.3s ease;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg-primary);color:var(--text-light);line-height:1.7;overflow-x:hidden}
a{color:var(--brand-orange);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--brand-red)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* Header & Navigation */
.k1z1bo54{position:fixed;top:0;left:0;width:100%;z-index:1000;background:rgba(15,15,26,0.95);backdrop-filter:blur(10px);border-bottom:1px solid rgba(232,68,48,0.2);transition:var(--transition)}
.1jnlcajq{display:flex;align-items:center;justify-content:space-between;padding:10px 20px;max-width:1200px;margin:0 auto}
.yryr75ll{display:flex;align-items:center;gap:10px}
.yryr75ll img{height:42px;width:auto}
.11oirfgx{font-size:1.4rem;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap}
.u0s88tl{display:flex;align-items:center;gap:6px}
.u0s88tl a{color:var(--text-light);padding:8px 14px;border-radius:8px;font-size:0.9rem;transition:var(--transition);white-space:nowrap}
.u0s88tl a:hover,.u0s88tl a.active{background:var(--gradient);color:#fff;-webkit-text-fill-color:#fff}
.13tyx{display:none;background:none;border:none;color:var(--text-white);font-size:1.5rem;cursor:pointer}

/* Search Bar */
.r95ioo{background:var(--bg-secondary);padding:12px 0;border-bottom:1px solid rgba(255,255,255,0.05)}
.r95ioo .container{display:flex;align-items:center;justify-content:center;gap:10px}
.vdqct7is{display:flex;align-items:center;background:var(--bg-card);border:1px solid rgba(232,68,48,0.3);border-radius:25px;overflow:hidden;width:100%;max-width:600px}
.vdqct7is input{background:transparent;border:none;color:var(--text-white);padding:10px 20px;flex:1;font-size:0.95rem;outline:none}
.vdqct7is input::placeholder{color:var(--text-muted)}
.00dtu1{background:var(--gradient);border:none;color:#fff;padding:10px 24px;cursor:pointer;font-size:0.9rem;transition:var(--transition)}
.00dtu1:hover{opacity:0.85}
.uejk2jx{display:flex;gap:8px;flex-wrap:wrap;margin-left:15px}
.uejk2jx span{font-size:0.8rem;color:var(--text-muted);padding:4px 10px;background:rgba(255,255,255,0.05);border-radius:12px;cursor:pointer;transition:var(--transition)}
.uejk2jx span:hover{color:var(--brand-orange);background:rgba(255,140,66,0.1)}

/* Hero Section */
.gzfcer{position:relative;height:70vh;min-height:450px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-top:62px}
.gzfcer-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:brightness(0.4)}
.gzfcer-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,15,26,0.3) 0%,rgba(15,15,26,0.8) 100%)}
.gzfcer-content{position:relative;z-index:2;text-align:center;padding:0 20px;max-width:800px}
.gzfcer-content h1{font-size:2.8rem;font-weight:800;margin-bottom:16px;line-height:1.3}
.gzfcer-content h1 .nmtrv{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.gzfcer-content p{font-size:1.15rem;color:var(--text-light);margin-bottom:28px;line-height:1.8}
.gzfcer-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.kr5k1j{display:inline-block;padding:12px 32px;background:var(--gradient);color:#fff;border-radius:25px;font-weight:600;font-size:1rem;transition:var(--transition);border:none;cursor:pointer}
.kr5k1j:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(232,68,48,0.4);color:#fff}
.eci8w{display:inline-block;padding:12px 32px;border:2px solid var(--brand-red);color:var(--brand-red);border-radius:25px;font-weight:600;font-size:1rem;transition:var(--transition);background:transparent;cursor:pointer}
.eci8w:hover{background:var(--brand-red);color:#fff}

/* Section Common */
.jwm2u{padding:70px 0}
.jwm2u-header{text-align:center;margin-bottom:45px}
.jwm2u-header h2{font-size:2rem;font-weight:700;margin-bottom:12px;color:var(--text-white)}
.jwm2u-header h2 .ubmi5ik5{color:var(--brand-red)}
.jwm2u-header p{color:var(--text-muted);font-size:1rem;max-width:650px;margin:0 auto}
.jwm2u-alt{background:var(--bg-secondary)}

/* Video Card Grid - HTML5 Video */
.c1ubyr{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.r45z3{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;transition:var(--transition);cursor:pointer;position:relative}
.r45z3:hover{transform:translateY(-6px);box-shadow:0 12px 35px rgba(232,68,48,0.2)}
.e0kvn{position:relative;padding-top:56.25%;overflow:hidden}
.e0kvn video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition);background:var(--bg-card)}
.e0kvn img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:var(--transition)}
.r45z3:hover .e0kvn video,.r45z3:hover .e0kvn img{transform:scale(1.05)}
.lnis0i{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) scale(0.8);width:54px;height:54px;background:rgba(232,68,48,0.85);border-radius:50%;display:flex;align-items:center;justify-content:center;opacity:0;transition:var(--transition);z-index:2;cursor:pointer}
.lnis0i::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:3px}
.r45z3:hover .lnis0i{opacity:1;transform:translate(-50%,-50%) scale(1)}
.lnis0i:hover{background:rgba(232,68,48,1);box-shadow:0 0 20px rgba(232,68,48,0.5)}
.u7po92nj{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,0.75);color:#fff;padding:2px 8px;border-radius:4px;font-size:0.75rem;z-index:2}
.y0ixg4gj{padding:14px}
.y0ixg4gj h3{font-size:0.95rem;color:var(--text-white);margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.odug2{display:flex;align-items:center;gap:12px;font-size:0.8rem;color:var(--text-muted)}
.odug2 span{display:flex;align-items:center;gap:4px}

/* Service Cards */
.wc422p{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.l799i{background:var(--bg-card);border-radius:var(--radius);padding:30px;text-align:center;transition:var(--transition);border:1px solid rgba(255,255,255,0.05)}
.l799i:hover{border-color:var(--brand-red);transform:translateY(-4px);box-shadow:var(--shadow)}
.2vu4a0h{width:64px;height:64px;margin:0 auto 18px;background:var(--gradient);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.8rem}
.l799i h3{font-size:1.1rem;color:var(--text-white);margin-bottom:10px}
.l799i p{font-size:0.9rem;color:var(--text-muted);line-height:1.6}

/* Expert Section */
.5qeyw13n{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tsp86lg5{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;text-align:center;transition:var(--transition);border:1px solid rgba(255,255,255,0.05)}
.tsp86lg5:hover{border-color:var(--brand-orange);box-shadow:var(--shadow)}
.e1ev0z8t{width:100px;height:100px;border-radius:50%;margin:24px auto 14px;overflow:hidden;border:3px solid var(--brand-red)}
.e1ev0z8t img{width:100%;height:100%;object-fit:cover}
.tsp86lg5 h3{font-size:1rem;color:var(--text-white);margin-bottom:4px}
.tsp86lg5 .uo0khd{font-size:0.85rem;color:var(--brand-orange);margin-bottom:10px}
.tsp86lg5 p{font-size:0.8rem;color:var(--text-muted);padding:0 16px;margin-bottom:16px;line-height:1.5}
.xx334s{display:flex;justify-content:center;gap:10px;padding-bottom:20px}
.xx334s a{padding:6px 14px;border-radius:15px;font-size:0.8rem;border:1px solid var(--brand-red);color:var(--brand-red);transition:var(--transition)}
.xx334s a:hover{background:var(--brand-red);color:#fff}

/* Brand Wall */
.rc5y2{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.rc5y2 .fv1772{background:var(--bg-card);padding:20px 30px;border-radius:var(--radius);min-width:160px;text-align:center;font-size:1rem;font-weight:600;color:var(--text-muted);border:1px solid rgba(255,255,255,0.05);transition:var(--transition)}
.rc5y2 .fv1772:hover{border-color:var(--brand-orange);color:var(--brand-orange)}

/* Reviews */
.ph2nm82u{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.59fzct{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid rgba(255,255,255,0.05)}
.xxvmn{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.ayqgmrc9{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1rem}
.528qk9h{font-size:0.95rem;color:var(--text-white)}
.k9ub1{font-size:0.8rem;color:var(--text-muted)}
.ikculyot{color:var(--brand-orange);margin-bottom:8px;font-size:0.9rem}
.8vf55np5{font-size:0.9rem;color:var(--text-light);line-height:1.7}

/* FAQ */
.xdbva3s7{max-width:800px;margin:0 auto}
.lskpmy{background:var(--bg-card);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;border:1px solid rgba(255,255,255,0.05)}
.2kz2e{padding:18px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:1rem;color:var(--text-white);font-weight:600;transition:var(--transition)}
.2kz2e:hover{color:var(--brand-orange)}
.2kz2e .n3mkwx{font-size:1.2rem;transition:var(--transition);color:var(--brand-red)}
.mfoxd3fq{padding:0 24px;max-height:0;overflow:hidden;transition:max-height 0.3s ease,padding 0.3s ease}
.lskpmy.active .mfoxd3fq{max-height:300px;padding:0 24px 18px}
.lskpmy.active .n3mkwx{transform:rotate(45deg)}
.mfoxd3fq p{font-size:0.9rem;color:var(--text-muted);line-height:1.7}

/* Contact Section */
.uu0q22l{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.gkdw4a{background:var(--bg-card);border-radius:var(--radius);padding:30px}
.gkdw4a h3{font-size:1.2rem;color:var(--text-white);margin-bottom:16px}
.9judlsn{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px}
.9judlsn .nt5ad3{font-size:0.85rem;color:var(--text-muted);min-width:70px}
.9judlsn .epuzthh{font-size:0.9rem;color:var(--text-light)}
.ycttf{display:flex;gap:20px;margin-top:20px}
.ycttf .s5e0wso{text-align:center}
.ycttf .s5e0wso img{width:120px;height:120px;border-radius:8px;margin-bottom:8px}
.ycttf .s5e0wso span{font-size:0.8rem;color:var(--text-muted)}

/* Community Guide */
.izfhssv{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px}
.9ngvafeb{text-align:center;padding:20px}
.9ngvafeb .8s8wwk{width:48px;height:48px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.2rem;margin:0 auto 14px}
.9ngvafeb h4{font-size:0.95rem;color:var(--text-white);margin-bottom:8px}
.9ngvafeb p{font-size:0.85rem;color:var(--text-muted)}

/* Social Share */
.piegr2lp{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.piegr2lp a{display:flex;align-items:center;gap:6px;padding:10px 20px;background:var(--bg-card);border-radius:25px;color:var(--text-light);font-size:0.9rem;border:1px solid rgba(255,255,255,0.05);transition:var(--transition)}
.piegr2lp a:hover{border-color:var(--brand-red);color:var(--brand-red);background:rgba(232,68,48,0.1)}

/* Footer */
.pe39hja{background:var(--brand-dark);border-top:2px solid var(--brand-red);padding:50px 0 0}
.k9wj77{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,0.08)}
.09b29 .yryr75ll{margin-bottom:12px}
.09b29 p{font-size:0.85rem;color:var(--text-muted);line-height:1.6;margin-bottom:16px}
.hmweulpk h4{font-size:1rem;color:var(--text-white);margin-bottom:14px;position:relative;padding-bottom:8px}
.hmweulpk h4::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--gradient)}
.hmweulpk a{display:block;font-size:0.85rem;color:var(--text-muted);padding:4px 0;transition:var(--transition)}
.hmweulpk a:hover{color:var(--brand-orange);padding-left:4px}
.dkk8l42{display:flex;justify-content:space-between;align-items:center;padding:20px 0;flex-wrap:wrap;gap:10px}
.dkk8l42 p{font-size:0.8rem;color:var(--text-muted)}
.bx28s{display:flex;gap:16px}
.bx28s .9lsyw6hn{text-align:center}
.bx28s .9lsyw6hn img{width:80px;height:80px;border-radius:6px;margin-bottom:4px}
.bx28s .9lsyw6hn span{font-size:0.7rem;color:var(--text-muted)}

/* Breadcrumb */
.vmvb141n{padding:12px 0;font-size:0.85rem}
.vmvb141n a{color:var(--text-muted)}
.vmvb141n a:hover{color:var(--brand-orange)}
.vmvb141n span{color:var(--text-muted);margin:0 6px}
.vmvb141n .current{color:var(--brand-red)}

/* AI Feature Cards */
.k9cmmodw{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.0s10m8{background:var(--bg-card);border-radius:var(--radius);padding:28px;border:1px solid rgba(255,255,255,0.05);transition:var(--transition);position:relative;overflow:hidden}
.0s10m8::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:var(--gradient)}
.0s10m8:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.0s10m8 h3{font-size:1.05rem;color:var(--text-white);margin-bottom:10px}
.0s10m8 p{font-size:0.88rem;color:var(--text-muted);line-height:1.6}

/* Community Features */
.llts4jn{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cgjsx4l1{background:var(--bg-card);border-radius:var(--radius);padding:24px;text-align:center;border:1px solid rgba(255,255,255,0.05);transition:var(--transition)}
.cgjsx4l1:hover{border-color:var(--brand-orange)}
.cgjsx4l1 .n77pw{font-size:2.2rem;margin-bottom:12px}
.cgjsx4l1 h3{font-size:1rem;color:var(--text-white);margin-bottom:8px}
.cgjsx4l1 p{font-size:0.85rem;color:var(--text-muted)}

/* Tags */
.6r0c4pph-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.6r0c4pph{padding:4px 12px;background:rgba(232,68,48,0.1);color:var(--brand-red);border-radius:15px;font-size:0.8rem;transition:var(--transition)}
.6r0c4pph:hover{background:var(--brand-red);color:#fff}

/* Responsive */
@media(max-width:1024px){
  .c1ubyr{grid-template-columns:repeat(3,1fr)}
  .wc422p,.k9cmmodw,.llts4jn{grid-template-columns:repeat(2,1fr)}
  .5qeyw13n{grid-template-columns:repeat(2,1fr)}
  .k9wj77{grid-template-columns:1fr 1fr}
  .izfhssv{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .1jnlcajq{flex-wrap:wrap}
  .u0s88tl{display:none;width:100%;flex-direction:column;padding:10px 0}
  .u0s88tl.show{display:flex}
  .13tyx{display:block}
  .gzfcer{height:55vh;min-height:350px}
  .gzfcer-content h1{font-size:1.8rem}
  .c1ubyr{grid-template-columns:repeat(2,1fr)}
  .wc422p,.k9cmmodw,.llts4jn{grid-template-columns:1fr}
  .5qeyw13n{grid-template-columns:repeat(2,1fr)}
  .ph2nm82u{grid-template-columns:1fr}
  .uu0q22l{grid-template-columns:1fr}
  .k9wj77{grid-template-columns:1fr}
  .dkk8l42{flex-direction:column;text-align:center}
  .izfhssv{grid-template-columns:1fr 1fr}
  .uejk2jx{display:none}
  .jwm2u{padding:45px 0}
  .jwm2u-header h2{font-size:1.5rem}
}
@media(max-width:480px){
  .c1ubyr{grid-template-columns:1fr}
  .5qeyw13n{grid-template-columns:1fr}
  .izfhssv{grid-template-columns:1fr}
  .gzfcer-content h1{font-size:1.5rem}
}

/* Lazy Load */
img[data-src]{opacity:0;transition:opacity 0.3s}
img.loaded{opacity:1}

/* Page specific */
.hcp6h4{padding:100px 0 40px;background:var(--bg-secondary);text-align:center}
.hcp6h4 h1{font-size:2.2rem;color:var(--text-white);margin-bottom:10px}
.hcp6h4 p{color:var(--text-muted);font-size:1rem}
.rdr2kb3{padding:50px 0}
.rdr2kb3 h2{font-size:1.6rem;color:var(--text-white);margin-bottom:16px}
.rdr2kb3 h3{font-size:1.2rem;color:var(--brand-orange);margin-bottom:10px}
.rdr2kb3 p{color:var(--text-light);line-height:1.8;margin-bottom:16px}

/* About page */
.fwcw0o{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.fwcw0o img{border-radius:var(--radius)}
.timeline{position:relative;padding-left:30px}
.timeline::before{content:'';position:absolute;left:10px;top:0;bottom:0;width:2px;background:var(--gradient)}
.timeline-item{position:relative;margin-bottom:30px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--brand-red)}
.timeline-item h4{color:var(--brand-orange);font-size:0.95rem;margin-bottom:4px}
.timeline-item p{color:var(--text-muted);font-size:0.9rem}