/* 异次元 - 二次元漫画与番剧 */
:root{
  --violet:#1567F0;
  --violet-2:#0D4FC7;
  --violet-soft:#E6F0FF;
  --violet-pale:#F5F9FF;
  --lime:#FFC53D;
  --ink:#0E1B33;
  --gray:#5F6E85;
  --line:#D9E6F7;
  --card:#FFFFFF;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  color:var(--ink);background:var(--violet-pale);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{width:min(1100px,92%);margin:0 auto}
h1,h2,h3,h4{line-height:1.3}

/* header */
.hd{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.93);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.hd-in{display:flex;align-items:center;gap:22px;height:70px}
.hd-brand{display:flex;align-items:center;gap:11px}
.hd-brand img{border-radius:10px}
.hd-brand b{display:block;font-size:17px;letter-spacing:.04em;color:var(--violet)}
.hd-brand small{display:block;font-size:10.5px;color:var(--gray);letter-spacing:.12em}
.nav{display:flex;gap:6px;margin-left:auto}
.nav a{
  font-size:14px;color:#4B5A70;padding:7px 12px;border-radius:7px;transition:.2s;
}
.nav a:hover{background:var(--violet-soft);color:var(--violet)}
.nav-toggle{display:none;background:none;border:0;color:var(--violet);cursor:pointer;padding:6px}
.cta{
  background:var(--lime);color:var(--ink);font-weight:800;font-size:14px;
  padding:10px 20px;border-radius:7px;
  box-shadow:0 8px 18px rgba(21,103,240,.2);
  transition:.2s;
}
.cta:hover{transform:translateY(-2px);background:#FFD466}

/* hero */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(108deg,#F5F9FF 0%,#F5F9FF 58%,#1567F0 58%,#5A3BE8 100%);
  padding:64px 0 78px;
}
.hero-in{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:46px;align-items:center}
.kick{
  display:inline-block;font-size:12px;letter-spacing:.16em;color:var(--violet);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
h1{font-size:clamp(44px,6.6vw,74px);font-weight:800;color:var(--ink);letter-spacing:.02em}
h1 span{color:var(--violet);position:relative}
h1 span::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;
  background:var(--lime);z-index:-1;
}
.lead{font-size:19px;font-weight:600;color:#20334D;margin:12px 0 14px}
.desc{font-size:15px;color:#4B5A70;max-width:33em}
.acts{display:flex;align-items:center;gap:16px;margin:26px 0 24px}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--violet);color:#fff;font-weight:700;font-size:15px;
  padding:14px 26px;border-radius:7px;
  box-shadow:0 10px 24px rgba(21,103,240,.3);
  transition:.2s;
}
.btn svg{width:18px;height:18px}
.btn:hover{transform:translateY(-2px);background:var(--violet-2)}
.ghost{font-size:14px;font-weight:600;color:var(--violet);border-bottom:1.5px dashed var(--violet);padding-bottom:2px}
.ghost:hover{color:var(--violet-2)}
.facts{list-style:none;display:flex;gap:10px;flex-wrap:wrap}
.facts li{
  background:#fff;border:1px solid var(--line);border-radius:7px;
  padding:10px 14px;min-width:112px;
}
.facts b{display:block;font-size:14px;color:var(--violet)}
.facts span{font-size:11.5px;color:var(--gray)}

/* hero strip */
.strip{position:relative;display:flex;gap:16px;justify-content:flex-end;align-items:flex-start}
.roll{
  width:58%;border-radius:14px;overflow:hidden;
  border:5px solid rgba(255,255,255,.92);
  box-shadow:0 24px 46px rgba(8,30,60,.35);
}
.roll img{width:100%;height:440px;object-fit:cover;object-position:top center}
.strip-side{display:grid;gap:10px;align-content:start;padding-top:6px}
.dot{width:7px;height:22px;border-radius:4px;background:rgba(255,255,255,.35);display:block}
.dot.on{background:var(--lime)}
.strip-side p{font-size:12px;color:#E2EEFF;line-height:1.6;margin:4px 0 2px}
.strip-side p small{color:#AFCCF2;font-size:11px}
.mini{
  width:104px;border-radius:10px;overflow:hidden;
  border:4px solid rgba(255,255,255,.92);box-shadow:0 14px 28px rgba(8,30,60,.3);
}
.tagfl{
  position:absolute;left:0;bottom:-14px;
  background:var(--lime);color:var(--ink);font-size:12px;font-weight:800;
  padding:7px 14px;border-radius:7px;
}

/* sections */
.sec{padding:76px 0;background:var(--violet-pale)}
.sec.violet{background:var(--violet-soft)}
.sh{margin-bottom:38px;max-width:44em}
.eyebrow{
  display:inline-block;font-size:11px;letter-spacing:.24em;
  color:var(--violet-2);background:#fff;border-radius:999px;padding:4px 12px;margin-bottom:12px;
}
.sec.violet .eyebrow{background:#fff}
.sh h2{font-size:clamp(25px,3.3vw,33px);color:var(--ink);font-weight:800}
.sh h2::after{content:"";display:block;width:44px;height:3px;background:var(--lime);margin-top:10px}
.sh p{font-size:14px;color:var(--gray);margin-top:10px}

/* features */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tile{
  background:var(--card);border-radius:12px;padding:22px 20px;
  border:1px solid var(--line);
  box-shadow:0 8px 22px rgba(14,27,51,.05);
  transition:.22s;
}
.tile:hover{transform:translateY(-4px);box-shadow:0 16px 32px rgba(14,27,51,.11);border-color:#B9D3F5}
.ti{
  display:grid;place-items:center;width:42px;height:42px;border-radius:9px;
  background:var(--lime);color:var(--ink);margin-bottom:12px;
}
.ti svg{width:20px;height:20px}
.tile h4{font-size:16.5px;color:var(--ink);margin-bottom:6px}
.tile p{font-size:13.5px;color:#4B5A70}

/* screens */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.col{
  background:#fff;border-radius:14px;padding:10px 10px 14px;
  box-shadow:0 14px 30px rgba(14,27,51,.1);
}
.col img{width:100%;height:300px;object-fit:cover;object-position:top center;border-radius:8px}
.col.lift{margin-top:-22px;box-shadow:0 20px 38px rgba(14,27,51,.18);border:2px solid var(--lime)}
.col.lift img{height:340px}
.col figcaption{font-size:12.5px;color:var(--gray);margin-top:10px;padding:0 4px}
.col figcaption b{display:block;color:var(--violet);font-size:14px;margin-bottom:2px}

/* guide */
.steps{
  list-style:none;display:grid;gap:14px;position:relative;
  padding-left:26px;border-left:2px dashed #B9D3F5;
}
.steps li{
  position:relative;display:grid;grid-template-columns:46px 1fr;gap:12px;align-items:center;
  background:#fff;border-radius:10px;padding:14px 18px;
  border:1px solid var(--line);
}
.steps li::before{
  content:"";position:absolute;left:-33px;top:50%;width:12px;height:12px;
  margin-top:-6px;border-radius:50%;background:var(--lime);border:2px solid #fff;
}
.steps b{
  font-size:13px;font-weight:800;color:var(--violet);
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:var(--violet-soft);
}
.steps span{font-size:14.5px;color:#20334D}
.gnote{
  margin-top:18px;font-size:13px;color:#20334D;
  background:#fff;border-radius:8px;padding:12px 16px;
  border-left:3px solid var(--violet);
}

/* faq */
.qa{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.q{
  background:#fff;border-radius:10px;padding:18px 20px;
  border:1px solid var(--line);
}
.q h3{
  font-size:15.5px;color:var(--ink);display:flex;gap:9px;align-items:baseline;
}
.q h3::before{
  content:"?";color:var(--ink);background:var(--lime);font-weight:800;font-size:12px;
  width:18px;height:18px;border-radius:5px;display:grid;place-items:center;flex:0 0 auto;
  line-height:1;
}
.q p{font-size:13.5px;color:#4B5A70;margin-top:7px;padding-left:27px}

/* reviews */
.bubbles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bub{
  background:#fff;border-radius:10px;padding:20px;
  border-top:3px solid var(--violet);
  box-shadow:0 12px 26px rgba(14,27,51,.08);
}
.bub blockquote{font-size:13.8px;color:#20334D;line-height:1.8}
.who{
  display:flex;align-items:center;gap:8px;margin-top:14px;
  padding-top:10px;border-top:1px dashed var(--line);
  font-size:11.5px;color:var(--gray);
}
.who i{
  font-style:normal;width:26px;height:26px;border-radius:7px;
  display:grid;place-items:center;background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:700;
}

/* get */
.get{
  background:linear-gradient(150deg,var(--violet) 0%,#0A3FA8 72%,#4A90FF 100%);
  color:#fff;padding:66px 0 74px;
}
.get-in{display:grid;justify-items:center;text-align:center;gap:13px}
.get img{border-radius:12px;background:#fff;padding:3px}
.get h2{font-size:clamp(25px,3.5vw,34px);font-weight:800}
.get h2 em{font-style:normal;color:var(--lime)}
.get p{font-size:14.5px;color:#CFE2FF;max-width:40em}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:4px 0 8px}
.chips span{
  font-size:12px;color:#E2EEFF;border:1px solid rgba(255,255,255,.35);
  border-radius:5px;padding:5px 12px;
}
.get .btn{background:var(--lime);color:var(--ink);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.get .btn:hover{background:#FFD466}

/* footer */
.ft{background:#E6F0FF;color:#4B5A70;padding:42px 0 28px;font-size:13px}
.ft-in{display:grid;gap:14px}
.ft-l{display:flex;align-items:center;gap:10px;color:var(--violet);font-size:16px}
.ft-l img{border-radius:8px}
.ft p{max-width:52em;line-height:1.8}
.ft-nav{display:flex;gap:18px;flex-wrap:wrap;padding:12px 0;border-top:1px solid #CDE0F5;border-bottom:1px solid #CDE0F5}
.ft-nav a:hover{color:var(--violet-2)}
.ft-c{color:#8595AA;font-size:12px;line-height:1.9}

/* backtop */
.backtop{
  position:fixed;right:22px;bottom:86px;z-index:50;width:42px;height:42px;
  display:grid;place-items:center;border:0;border-radius:9px;
  background:var(--violet);color:#fff;cursor:pointer;
  box-shadow:0 10px 22px rgba(21,103,240,.3);
  opacity:0;pointer-events:none;transition:.25s;
}
.backtop.show{opacity:1;pointer-events:auto}

@media (max-width:960px){
  .hero{background:linear-gradient(170deg,#F5F9FF 0%,#EDF4FF 100%)}
  .hero-in{grid-template-columns:1fr;gap:36px}
  .strip{justify-content:center}
  .roll img{height:400px}
  .tiles{grid-template-columns:1fr 1fr}
  .cols{grid-template-columns:1fr 1fr}
  .col.lift{margin-top:0}
  .col.lift img{height:300px}
  .qa{grid-template-columns:1fr}
  .bubbles{grid-template-columns:1fr}
  .nav{
    position:fixed;left:0;right:0;top:70px;
    background:#fff;flex-direction:column;gap:0;
    padding:8px 0 14px;border-bottom:1px solid var(--line);
    display:none;
  }
  .nav.open{display:flex}
  .nav a{border-radius:0;padding:12px 6%}
  .nav-toggle{display:block;margin-left:auto}
  .cta{padding:9px 16px;font-size:13px}
}
@media (max-width:600px){
  .hero{padding:44px 0 58px}
  .sec{padding:52px 0}
  .tiles{grid-template-columns:1fr}
  .cols{grid-template-columns:1fr}
  .roll{width:64%}
  .roll img{height:330px}
  .facts li{min-width:calc(50% - 5px)}
  h1{font-size:clamp(38px,11vw,52px)}
}
.mini img{height:190px;object-fit:cover;object-position:top center}

/* 125 AI短剧 专属版式：左图右文 + 悬浮小卡 */
.hero{
  padding:54px 0 78px;
  background:linear-gradient(104deg,#E7F1FF 0%,#F5F9FF 54%,#FFFFFF 100%);
}
.hero::after{
  content:"";position:absolute;right:-6%;top:-18%;width:46%;height:80%;
  background:radial-gradient(closest-side,rgba(21,103,240,.14),transparent 72%);
}
.hero-in{grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}
.hero-visual{position:relative;padding:14px 0 26px;justify-self:center}
.vmain{
  width:292px;margin:0 auto;border-radius:28px;overflow:hidden;
  border:6px solid #fff;box-shadow:0 30px 58px rgba(11,42,92,.22);
  transform:rotate(-3deg);background:#fff;
}
.vmain img{width:100%;height:522px;object-fit:cover;object-position:top center}
.vmini{
  position:absolute;right:-4px;bottom:-2px;width:142px;border-radius:18px;overflow:hidden;
  border:5px solid #fff;box-shadow:0 20px 38px rgba(11,42,92,.24);
  transform:rotate(4deg);background:#fff;
}
.vmini img{width:100%;height:252px;object-fit:cover;object-position:top center}
.vtag{
  position:absolute;left:-6px;top:0;z-index:2;font-size:12px;font-weight:700;
  color:#fff;background:#1567F0;border-radius:999px;padding:6px 14px;
  box-shadow:0 10px 20px rgba(21,103,240,.3);
}
.vbadge{
  position:absolute;left:6px;bottom:34px;z-index:2;font-size:11.5px;font-weight:700;
  color:#0E1B33;background:var(--lime);border-radius:6px;padding:5px 11px;
}
.hero .kick{color:#0D4FC7;border-color:#C4DBFA;background:#fff}
h1 span{color:#1567F0}
h1 span::after{background:var(--lime);opacity:.75}
.hero .lead{color:#20334D}
.hero .desc{color:#4B5A70}
.facts li{border-color:#D9E6F7}
.facts b{color:#1567F0}
.btn{background:#1567F0}
.btn:hover{background:#0D4FC7}
.ghost{color:#1567F0;border-color:#1567F0}
.sec.sky{background:linear-gradient(180deg,#EEF5FF 0%,#F6FAFF 100%)}
.tiles{gap:16px}
.tile{border-radius:14px;border-color:#DCE8F6}
.tile:hover{border-color:#A9C9F2}
.ti{background:#1567F0;color:#fff;border-radius:11px}
.shots3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start}
.s3{
  position:relative;border-radius:16px;overflow:hidden;background:#fff;
  box-shadow:0 18px 36px rgba(11,42,92,.13);
}
.s3.mid{margin-top:-26px}
.s3 img{width:100%;height:392px;object-fit:cover;object-position:top center}
.s3 figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:44px 16px 15px;color:#fff;
  background:linear-gradient(180deg,rgba(6,20,42,0),rgba(6,20,42,.88));
  font-size:12.5px;line-height:1.7;
}
.s3 figcaption span{
  display:inline-grid;place-items:center;width:24px;height:24px;border-radius:7px;
  background:var(--lime);color:#0E1B33;font-size:11px;font-weight:800;margin-bottom:6px;
}
.s3 figcaption b{display:block;font-size:15px;margin-bottom:3px;letter-spacing:.02em}
@media (max-width:960px){
  .hero{background:linear-gradient(170deg,#E7F1FF 0%,#F8FBFF 100%)}
  .hero-in{grid-template-columns:1fr;gap:34px}
  .vmain{width:250px}
  .vmain img{height:446px}
  .vmini{width:124px;right:6%}
  .vmini img{height:216px}
  .shots3{grid-template-columns:1fr 1fr}
  .s3.mid{margin-top:0}
  .s3 img{height:340px}
}
@media (max-width:600px){
  .hero{padding:40px 0 56px}
  .vmain{width:224px}
  .vmain img{height:400px}
  .vmini{width:108px;right:-2px}
  .vmini img{height:186px}
  .vtag{left:0;font-size:11px;padding:5px 10px}
  .vbadge{bottom:24px}
  .shots3{grid-template-columns:1fr}
  .s3 img{height:330px}
  .s3 figcaption{font-size:12px}
}

/* backtop 修复：JS 加 on 类 */
.backtop.on{opacity:1;pointer-events:auto}