:root{
    --bg:#0a0a0d;
    --panel:#121217;
    --panel-2:#17171e;
    --red:#e50914;
    --red-dark:#b30710;
    --text:#f5f5f8;
    --muted:#9a9aa8;
    --line:rgba(255,255,255,.08);
    --radius:14px;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}

  /* ============ Header ============ */
  .site-header{
    position:fixed;
    top:0;left:0;
    width:100%;
    z-index:100;
    background:transparent;
  }
  .site-header::before{
    content:"";
    position:absolute;
    inset:0;
    width:100vw;
    left:50%;
    transform:translateX(-50%);
    background:linear-gradient(180deg,rgba(10,10,13,.95) 0%,rgba(10,10,13,.85) 60%,rgba(10,10,13,0) 100%);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    z-index:-1;
    transition:background .3s;
  }
  .header-inner{
    max-width:1320px;
    margin:0 auto;
    padding:0 40px;
    height:70px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
  }
  .brand img{
    height:34px;
    width:auto;
    border-radius:6px;
  }
  .brand-name{
    font-size:20px;
    font-weight:800;
    letter-spacing:.5px;
    white-space:nowrap;
  }
  .nav-desktop{
    display:flex;
    align-items:center;
    gap:6px;
    flex-wrap:nowrap;
    overflow:hidden;
  }
  .nav-desktop a{
    position:relative;
    padding:8px 12px;
    font-size:15px;
    color:var(--muted);
    white-space:nowrap;
    transition:color .25s;
    border-radius:6px;
  }
  .nav-desktop a::after{
    content:"";
    position:absolute;
    left:12px;right:12px;
    bottom:2px;
    height:2px;
    background:var(--red);
    border-radius:2px;
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .25s;
  }
  .nav-desktop a:hover{color:var(--text);}
  .nav-desktop a.active{color:var(--text);}
  .nav-desktop a.active::after{transform:scaleX(1);}
  .nav-cta{
    flex-shrink:0;
    background:var(--red);
    color:#fff;
    font-size:15px;
    font-weight:700;
    padding:10px 24px;
    border-radius:8px;
    transition:background .25s, transform .2s;
  }
  .nav-cta:hover{background:var(--red-dark);transform:translateY(-1px);}

  /* mobile nav */
  .menu-btn{
    display:none;
    width:42px;height:42px;
    border:none;
    background:rgba(255,255,255,.08);
    border-radius:8px;
    cursor:pointer;
    position:relative;
    flex-shrink:0;
  }
  .menu-btn span{
    position:absolute;
    left:11px;
    width:20px;
    height:2px;
    background:var(--text);
    border-radius:2px;
    transition:.3s;
  }
  .menu-btn span:nth-child(1){top:14px;}
  .menu-btn span:nth-child(2){top:20px;}
  .menu-btn span:nth-child(3){top:26px;}
  .menu-btn.open span:nth-child(1){top:20px;transform:rotate(45deg);}
  .menu-btn.open span:nth-child(2){opacity:0;}
  .menu-btn.open span:nth-child(3){top:20px;transform:rotate(-45deg);}

  .nav-mobile{
    display:none;
    position:absolute;
    top:70px;
    left:0;right:0;
    background:#101015;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:12px 24px 20px;
    box-shadow:0 20px 40px rgba(0,0,0,.6);
  }
  .nav-mobile.open{display:block;}
  .nav-mobile a{
    display:block;
    padding:12px 4px;
    font-size:16px;
    color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .nav-mobile a:last-child{border-bottom:none;}
  .nav-mobile a.active{color:var(--red);}

  /* ============ Sections common ============ */
  section{
    scroll-margin-top:80px;
    padding:70px 0;
  }
  .wrap{
    max-width:1320px;
    margin:0 auto;
    padding:0 40px;
  }
  .sec-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:20px;
    margin-bottom:26px;
    flex-wrap:wrap;
  }
  .sec-title{
    font-size:26px;
    font-weight:800;
    letter-spacing:.5px;
  }
  .sec-sub{
    font-size:14px;
    color:var(--muted);
    margin-top:4px;
  }
  .sec-more{
    font-size:14px;
    color:var(--muted);
    border:1px solid var(--line);
    padding:7px 16px;
    border-radius:20px;
    transition:.25s;
    white-space:nowrap;
  }
  .sec-more:hover{color:#fff;border-color:var(--red);background:rgba(229,9,20,.12);}

  /* ============ Hero ============ */
  .hero{
    position:relative;
    min-height:88vh;
    display:flex;
    align-items:flex-end;
    padding:0 0 64px;
    overflow:hidden;
    margin-top:0;
  }
  .hero-bg{
    position:absolute;
    inset:0;
    z-index:0;
  }
  .hero-bg img{
    width:100%;
    height:100%;
    object-fit:cover;
    object-position:center 30%;
    filter:brightness(.55);
  }
  .hero-bg::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(90deg,rgba(10,10,13,.96) 0%,rgba(10,10,13,.78) 38%,rgba(10,10,13,.2) 72%,rgba(10,10,13,.5) 100%),
      linear-gradient(0deg,rgba(10,10,13,1) 0%,rgba(10,10,13,0) 45%);
  }
  .hero-inner{
    position:relative;
    z-index:2;
    max-width:1320px;
    margin:0 auto;
    width:100%;
    padding:0 40px;
  }
  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    font-weight:800;
    letter-spacing:2px;
    color:#fff;
    background:var(--red);
    padding:5px 12px;
    border-radius:4px;
    margin-bottom:18px;
  }
  .hero h1{
    font-size:clamp(40px,7vw,86px);
    line-height:1.02;
    font-weight:900;
    letter-spacing:2px;
    margin-bottom:18px;
    text-shadow:0 6px 30px rgba(0,0,0,.6);
  }
  .hero-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:20px;
  }
  .hero-tags span{
    font-size:13px;
    color:#e6e6ee;
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.14);
    padding:6px 14px;
    border-radius:20px;
  }
  .hero-desc{
    max-width:560px;
    font-size:15px;
    color:#d2d2dc;
    margin-bottom:30px;
  }
  .hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    font-size:16px;
    font-weight:700;
    padding:14px 34px;
    border-radius:8px;
    transition:.25s;
  }
  .btn-primary{
    background:var(--red);
    color:#fff;
    box-shadow:0 10px 26px rgba(229,9,20,.35);
  }
  .btn-primary:hover{background:var(--red-dark);transform:translateY(-2px);}
  .btn-ghost{
    background:rgba(255,255,255,.14);
    color:#fff;
    border:1px solid rgba(255,255,255,.2);
    backdrop-filter:blur(6px);
  }
  .btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}

  /* ============ Poster rows ============ */
  .poster-row{
    display:grid;
    grid-template-columns:repeat(8,1fr);
    gap:16px;
  }
  .poster-row.six{
    grid-template-columns:repeat(6,1fr);
  }
  .poster-card{
    position:relative;
    aspect-ratio:3/4;
    border-radius:10px;
    overflow:hidden;
    background:var(--panel-2);
    transition:transform .3s, box-shadow .3s;
    cursor:pointer;
  }
  .poster-card img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .45s ease;
  }
  .poster-card:hover{
    transform:translateY(-4px);
    box-shadow:0 16px 34px rgba(0,0,0,.6);
  }
  .poster-card:hover img{transform:scale(1.05);}
  .poster-card::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(0deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.35) 28%,rgba(0,0,0,0) 55%);
    pointer-events:none;
  }
  .ep-badge{
    position:absolute;
    top:8px;left:8px;
    z-index:2;
    font-size:11px;
    font-weight:700;
    background:rgba(229,9,20,.95);
    color:#fff;
    padding:2px 8px;
    border-radius:4px;
    letter-spacing:.5px;
  }
  .poster-name{
    position:absolute;
    left:0;right:0;bottom:0;
    z-index:2;
    padding:12px 10px 10px;
    font-size:13px;
    font-weight:700;
    line-height:1.35;
    color:#fff;
    text-shadow:0 1px 6px rgba(0,0,0,.8);
  }

  /* ============ Rank ============ */
  .rank-list{
    display:flex;
    flex-direction:column;
    gap:12px;
  }
  .rank-item{
    display:flex;
    align-items:center;
    gap:18px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
    padding:12px 18px;
    transition:.25s;
  }
  .rank-item:hover{background:var(--panel-2);border-color:rgba(229,9,20,.5);}
  .rank-no{
    font-size:22px;
    font-weight:900;
    color:var(--muted);
    width:30px;
    text-align:center;
    flex-shrink:0;
    font-style:italic;
  }
  .rank-item:nth-child(1) .rank-no{color:var(--red);}
  .rank-item:nth-child(2) .rank-no{color:#ff6b6b;}
  .rank-thumb{
    width:42px;height:56px;
    border-radius:5px;
    object-fit:cover;
    flex-shrink:0;
  }
  .rank-info{
    min-width:120px;
    flex-shrink:0;
  }
  .rank-name{font-size:15px;font-weight:700;}
  .rank-type{font-size:12px;color:var(--muted);margin-top:2px;}
  .rank-bar-wrap{
    flex:1;
    height:8px;
    background:rgba(255,255,255,.08);
    border-radius:6px;
    overflow:hidden;
    min-width:60px;
  }
  .rank-bar{
    height:100%;
    background:linear-gradient(90deg,var(--red-dark),var(--red));
    border-radius:6px;
  }
  .rank-pct{
    font-size:14px;
    font-weight:700;
    color:#ffb3b3;
    width:54px;
    text-align:right;
    flex-shrink:0;
  }

  /* ============ Library ============ */
  .library{
    background:linear-gradient(180deg,var(--bg) 0%,#0d0d12 50%,var(--bg) 100%);
  }
  .lib-grid{
    display:grid;
    grid-template-columns:1.05fr 1fr;
    gap:50px;
    align-items:center;
  }
  .lib-img{
    position:relative;
    border-radius:16px;
    overflow:hidden;
    box-shadow:0 24px 60px rgba(0,0,0,.65);
  }
  .lib-img img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    filter:saturate(.95);
  }
  .lib-img::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(0deg,rgba(10,10,13,.6),rgba(10,10,13,0) 55%);
  }
  .lib-title{
    font-size:clamp(26px,3.2vw,38px);
    font-weight:900;
    letter-spacing:1px;
    margin-bottom:16px;
  }
  .lib-desc{
    color:#c3c3cf;
    font-size:15px;
    margin-bottom:10px;
    max-width:520px;
  }
  .lib-stats{
    display:flex;
    gap:14px;
    margin-top:32px;
    flex-wrap:wrap;
  }
  .stat{
    flex:1;
    min-width:120px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
    padding:18px 16px;
  }
  .stat-num{
    font-size:26px;
    font-weight:900;
    color:var(--red);
    line-height:1.1;
  }
  .stat-label{
    font-size:13px;
    color:var(--muted);
    margin-top:6px;
  }

  /* ============ Zones ============ */
  .zone-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
  }
  .zone-card{
    position:relative;
    aspect-ratio:16/10;
    border-radius:14px;
    overflow:hidden;
    background:var(--panel-2);
    transition:transform .3s, box-shadow .3s;
    cursor:pointer;
  }
  .zone-card img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .45s;
  }
  .zone-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(0,0,0,.6);}
  .zone-card:hover img{transform:scale(1.05);}
  .zone-card::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(0deg,rgba(0,0,0,.88) 0%,rgba(0,0,0,.25) 50%,rgba(0,0,0,0) 80%);
  }
  .zone-info{
    position:absolute;
    left:18px;right:18px;bottom:16px;
    z-index:2;
  }
  .zone-name{font-size:19px;font-weight:800;}
  .zone-desc{font-size:13px;color:#c9c9d4;margin-top:4px;}

  /* ============ Guide ============ */
  .guide{
    background:#0d0d12;
  }
  .guide-grid{
    display:grid;
    grid-template-columns:.9fr 1.4fr;
    gap:54px;
    align-items:center;
  }
  .phone-frame{
    position:relative;
    width:100%;
    max-width:300px;
    margin:0 auto;
    aspect-ratio:9/17;
    border-radius:34px;
    padding:10px;
    background:linear-gradient(160deg,#2a2a33,#111116);
    box-shadow:0 30px 70px rgba(0,0,0,.75), inset 0 0 0 1px rgba(255,255,255,.08);
  }
  .phone-frame img{
    width:100%;height:100%;
    object-fit:cover;
    border-radius:26px;
  }
  .steps{
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  .step{
    display:grid;
    grid-template-columns:44px 1fr;
    gap:16px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
    padding:16px 18px;
    transition:.25s;
  }
  .step:hover{border-color:rgba(229,9,20,.45);background:var(--panel-2);}
  .step-num{
    width:44px;height:44px;
    border-radius:50%;
    background:rgba(229,9,20,.14);
    border:1px solid rgba(229,9,20,.5);
    color:var(--red);
    font-weight:900;
    font-size:17px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .step-title{font-size:16px;font-weight:800;margin-bottom:6px;}
  .step-line{font-size:13.5px;color:#bfbfcb;line-height:1.65;}
  .step-line b{color:#fff;font-weight:700;}

  /* ============ FAQ ============ */
  .faq-group{margin-bottom:34px;}
  .faq-group:last-child{margin-bottom:0;}
  .faq-group-title{
    font-size:18px;
    font-weight:800;
    margin-bottom:14px;
    padding-left:12px;
    border-left:3px solid var(--red);
    line-height:1.2;
  }
  .faq-list{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:14px;
  }
  .faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
    padding:18px 20px;
  }
  .faq-q{
    font-size:15px;
    font-weight:700;
    margin-bottom:8px;
    display:flex;
    gap:8px;
  }
  .faq-q::before{
    content:"问";
    flex-shrink:0;
    font-size:12px;
    font-weight:800;
    color:var(--red);
    border:1px solid rgba(229,9,20,.6);
    border-radius:4px;
    width:20px;height:20px;
    display:flex;align-items:center;justify-content:center;
    margin-top:2px;
  }
  .faq-a{
    font-size:13.5px;
    color:#b9b9c6;
    line-height:1.7;
    padding-left:28px;
  }
  .faq-a strong{color:#fff;font-weight:700;}
  .faq-media{
    margin-top:12px;
    border-radius:8px;
    overflow:hidden;
    max-width:260px;
  }
  .faq-media img{width:100%;object-fit:cover;}

  /* ============ Preview ============ */
  .preview-grid{
    display:grid;
    grid-template-columns:1fr 1fr 1.35fr;
    gap:24px;
    align-items:end;
  }
  .shot{
    border-radius:14px;
    overflow:hidden;
    background:var(--panel-2);
    border:1px solid var(--line);
    transition:transform .3s;
  }
  .shot:hover{transform:translateY(-4px);}
  .shot img{width:100%;height:100%;object-fit:cover;}
  .shot.phone{aspect-ratio:9/16;}
  .shot.tv{aspect-ratio:16/10;}
  .preview-note{
    margin-top:22px;
    font-size:13px;
    color:var(--muted);
    text-align:center;
  }

  /* ============ Download ============ */
  .download{
    background:radial-gradient(circle at 50% 0%,rgba(229,9,20,.16),transparent 60%),#0d0d12;
    border-top:1px solid var(--line);
  }
  .dl-head{text-align:center;margin-bottom:34px;}
  .dl-head h2{font-size:clamp(26px,4vw,38px);font-weight:900;letter-spacing:1px;}
  .dl-head p{color:var(--muted);font-size:15px;margin-top:10px;}
  .dl-rows{
    display:flex;
    flex-direction:column;
    gap:14px;
    max-width:620px;
    margin:0 auto;
  }
  .dl-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:12px;
    padding:18px 24px;
    transition:.25s;
  }
  .dl-row:hover{border-color:var(--red);background:var(--panel-2);}
  .dl-label{font-size:16px;font-weight:700;}
  .dl-label small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:2px;}
  .dl-btn{
    background:var(--red);
    color:#fff;
    font-size:15px;
    font-weight:700;
    padding:11px 34px;
    border-radius:8px;
    transition:.25s;
    flex-shrink:0;
  }
  .dl-btn:hover{background:var(--red-dark);}

  /* ============ Footer ============ */
  .site-footer{
    background:#070709;
    border-top:1px solid var(--line);
    padding:34px 0 28px;
  }
  .footer-inner{
    max-width:1320px;
    margin:0 auto;
    padding:0 40px;
    text-align:center;
  }
  .footer-brand{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    margin-bottom:12px;
  }
  .footer-brand img{height:24px;width:auto;border-radius:4px;}
  .footer-brand span{font-size:14px;font-weight:700;color:#cfcfda;}
  .footer-text{
    font-size:12px;
    color:#70707e;
    line-height:1.9;
  }
  .footer-text a{
    color:#8a8a99;
    border-bottom:1px solid rgba(255,255,255,.12);
  }
  .footer-text a:hover{color:var(--red);}
  .footer-time{
    font-size:12px;
    color:#5c5c69;
    margin-top:8px;
  }
  .footer-time time{color:#77778a;}

  /* ============ Responsive ============ */
  @media (max-width:1024px){
    .header-inner{padding:0 24px;}
    .wrap{padding:0 24px;}
    .hero-inner{padding:0 24px;}
    .nav-desktop{align-items:center;}
    .nav-desktop a{padding:8px 9px;font-size:14px;}
    .poster-row{grid-template-columns:repeat(4,1fr);}
    .poster-row.six{grid-template-columns:repeat(3,1fr);}
    .lib-grid{gap:34px;}
    .guide-grid{gap:34px;}
    .preview-grid{grid-template-columns:1fr 1fr;}
    .shot.tv{grid-column:1 / -1;aspect-ratio:16/9;}
    .footer-inner{padding:0 24px;}
  }

  @media (max-width:900px){
    .nav-desktop{display:none;}
    .nav-cta.desktop-only{display:none;}
    .menu-btn{display:block;}
    section{padding:52px 0;}
    .hero{min-height:78vh;padding-bottom:44px;}
    .lib-grid{grid-template-columns:1fr;}
    .guide-grid{grid-template-columns:1fr;}
    .zone-grid{grid-template-columns:1fr;}
    .zone-card{aspect-ratio:16/9;}
    .faq-list{grid-template-columns:1fr;}
    .preview-grid{grid-template-columns:1fr;}
    .shot.phone{aspect-ratio:9/14;}
    .shot.tv{grid-column:auto;aspect-ratio:16/10;}
    .rank-item{gap:12px;padding:10px 12px;flex-wrap:wrap;}
    .rank-info{min-width:0;flex:1;}
    .rank-bar-wrap{order:5;flex-basis:100%;height:6px;}
    .rank-pct{width:auto;}
  }

  @media (max-width:768px){
    .wrap{padding:0 18px;}
    .header-inner{padding:0 18px;height:62px;}
    .hero-inner{padding:0 18px;}
    .nav-mobile{top:62px;padding:10px 18px 16px;}
    .brand img{height:28px;}
    .brand-name{font-size:17px;}
    .poster-row{grid-template-columns:repeat(3,1fr);gap:12px;}
    .poster-row.six{grid-template-columns:repeat(2,1fr);}
    .poster-name{font-size:12px;padding:10px 8px 8px;}
    .sec-title{font-size:21px;}
    .hero h1{letter-spacing:1px;}
    .hero-desc{font-size:14px;}
    .btn{padding:12px 24px;font-size:15px;}
    .lib-stats{gap:10px;}
    .stat{padding:14px 12px;}
    .stat-num{font-size:22px;}
    .dl-row{padding:14px 16px;}
    .dl-btn{padding:10px 24px;}
    .footer-inner{padding:0 18px;}
    .phone-frame{max-width:240px;}
  }

  @media (max-width:420px){
    .poster-row{gap:10px;}
    .poster-row.six{grid-template-columns:repeat(2,1fr);}
    .hero-actions{gap:10px;}
    .btn{flex:1;padding:12px 10px;}
    .rank-thumb{width:36px;height:48px;}
    .faq-item{padding:14px 14px;}
  }