/* =========================================================
   墨鱼心说 · MOYU LAB  —  企业官网样式
   ========================================================= */

:root{
  --paper:#F6F4F0;
  --paper-2:#EFEAE2;
  --paper-3:#E7E1D6;
  --ink:#11151A;
  --ink-2:#3B4552;
  --muted:#78838F;
  --line:rgba(17,21,26,.12);
  --line-2:rgba(17,21,26,.07);
  --teal:#0E9C82;
  --teal-2:#17BFA4;
  --teal-soft:#E2F4EF;
  --night:#0D1116;
  --night-2:#151B22;
  --white:#fff;

  --sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;

  --shadow-sm:0 1px 2px rgba(17,21,26,.05);
  --shadow:0 18px 40px -24px rgba(17,21,26,.30),0 2px 8px rgba(17,21,26,.04);
  --shadow-lg:0 40px 90px -50px rgba(17,21,26,.55);
  --r:14px;
  --pad:clamp(20px,4vw,40px);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.18}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

::selection{background:rgba(23,191,164,.24)}

/* 滚动条 */
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:var(--paper-2)}
::-webkit-scrollbar-thumb{background:#c3bcb0;border:3px solid var(--paper-2);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:#a89f91}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.section{padding:clamp(64px,8.5vw,118px) 0}
section[id],div[id],footer[id]{scroll-margin-top:92px}

/* ---------- 通用排版组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--teal);
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:currentColor;opacity:.55;
}
.eyebrow.on-dark{color:var(--teal-2)}

h2.title{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;letter-spacing:-.025em;margin-top:16px;
}
h2.title em{font-style:normal;color:var(--teal);position:relative;white-space:nowrap}
h2.title em::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.42em;
  background:linear-gradient(90deg,rgba(23,191,164,.22),rgba(23,191,164,.06));
  z-index:-1;border-radius:2px;
}
.lead{
  margin-top:18px;font-size:clamp(15px,1.25vw,17px);line-height:1.9;
  color:var(--ink-2);max-width:52ch;text-wrap:pretty;
}
.sec-head{max-width:760px}
.sec-head.center{margin:0 auto;text-align:center}
.sec-head.center .eyebrow::before{display:none}
.sec-head.center .lead{margin-left:auto;margin-right:auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;border-radius:100px;border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.01em;cursor:pointer;
  transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s,background .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn svg{width:15px;height:15px;transition:transform .3s}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 12px 26px -16px rgba(17,21,26,.9)}
.btn-primary:hover{background:#000;transform:translateY(-2px);box-shadow:0 18px 34px -18px rgba(17,21,26,.8)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{background:transparent;border-color:rgba(17,21,26,.22);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:rgba(17,21,26,.04);transform:translateY(-2px)}
.btn-teal{background:var(--teal);color:#fff;box-shadow:0 14px 30px -16px rgba(14,156,130,.9)}
.btn-teal:hover{background:#0b8a73;transform:translateY(-2px)}
.btn-teal:hover svg{transform:translateX(3px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}

/* ---------- 页头 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .35s,box-shadow .35s,backdrop-filter .35s,border-color .35s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(246,244,240,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom-color:var(--line-2);
  box-shadow:0 8px 24px -22px rgba(17,21,26,.5);
}
.header-inner{
  height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);
  display:grid;place-items:center;flex-shrink:0;
  transition:transform .4s cubic-bezier(.2,.7,.3,1),background .3s;
}
.brand:hover .brand-mark{transform:rotate(-6deg);background:#000}
.brand-mark svg{width:21px;height:21px}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:16.5px;font-weight:600;letter-spacing:.02em}
.brand-sub{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;
  color:var(--muted);margin-top:3px;text-transform:uppercase;
}

.nav{display:flex;align-items:center;gap:30px}
.nav a{
  position:relative;font-size:14.5px;color:var(--ink-2);
  padding:6px 0;transition:color .2s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;
  background:var(--teal);transform:scaleX(0);transform-origin:left;
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--ink)}

.header-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.header-tel{
  display:flex;flex-direction:column;line-height:1.2;text-align:right;
}
.header-tel span{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.header-tel strong{font-size:14.5px;font-weight:600;letter-spacing:.01em}

.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:rgba(255,255,255,.6);border-radius:10px;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle i{
  display:block;width:17px;height:1.6px;background:var(--ink);border-radius:2px;
  transition:transform .3s,opacity .25s;
}
body.nav-open .nav-toggle i:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
body.nav-open .nav-toggle i:nth-child(2){opacity:0}
body.nav-open .nav-toggle i:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:clamp(112px,13vw,168px) 0 clamp(56px,7vw,86px);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse 78% 62% at 62% 34%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 78% 62% at 62% 34%,#000 10%,transparent 78%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-140px;top:40px;
  background:radial-gradient(circle,rgba(23,191,164,.20),transparent 66%);
  filter:blur(18px);pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;
  gap:clamp(28px,5vw,64px);align-items:center;
}
.hero-copy .eyebrow{margin-bottom:22px}
.hero h1{
  font-size:clamp(38px,5.6vw,68px);
  line-height:1.1;letter-spacing:-.038em;font-weight:600;
}
.hero h1 .line{display:block;overflow:hidden}
.hero h1 .line>span{display:block}
.hero h1 em{
  font-style:normal;color:var(--teal);position:relative;display:inline-block;
}
.hero h1 em::after{
  content:"";position:absolute;left:2%;right:0;bottom:.1em;height:.16em;
  background:linear-gradient(90deg,rgba(23,191,164,.55),rgba(23,191,164,.08));
  border-radius:4px;transform-origin:left;
}
.hero-lead{
  margin-top:24px;font-size:clamp(15px,1.2vw,16.5px);line-height:1.92;
  color:var(--ink-2);max-width:44ch;text-wrap:pretty;
}
.hero-lead strong{font-weight:600;color:var(--ink)}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:34px}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:clamp(40px,5vw,58px);border-top:1px solid var(--line);
}
.hero-stats>div{padding:22px 8px 0 0;position:relative}
.hero-stats>div+div{padding-left:clamp(12px,2vw,26px);border-left:1px solid var(--line)}
.hero-stats .num{
  font-size:clamp(24px,2.6vw,32px);font-weight:600;letter-spacing:-.03em;line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-stats .num small{font-size:.46em;font-weight:500;color:var(--muted);margin-left:3px;letter-spacing:0}
.hero-stats .label{
  font-size:12px;color:var(--muted);margin-top:7px;letter-spacing:.02em;
}

/* Hero 视觉：能力图谱 */
.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.map-wrap{position:relative;width:100%;max-width:470px;aspect-ratio:1/1}
.map-wrap svg{width:100%;height:100%;overflow:visible}
.map-node circle.core{fill:var(--ink)}
.map-node circle.ring{fill:none;stroke:rgba(17,21,26,.16);stroke-dasharray:3 5}
.map-link{stroke:rgba(17,21,26,.16);stroke-width:1;fill:none}
.map-dot{fill:var(--teal)}
.map-node text{font-family:var(--sans);font-size:11.5px;fill:var(--ink-2)}
.core-txt{fill:#fff;font-size:12.5px;font-weight:600;letter-spacing:.02em}
.map-node text.core-txt{fill:#fff;font-size:12.5px;font-weight:600;letter-spacing:.02em}
.map-node .pill{fill:var(--paper);stroke:rgba(17,21,26,.14)}
.map-node .pill.hot{fill:var(--ink);stroke:var(--ink)}
.map-node .hot-txt{fill:#fff}
.pulse{animation:pulse 4.2s ease-in-out infinite;transform-origin:center}
.pulse.d1{animation-delay:.5s}.pulse.d2{animation-delay:1s}
.pulse.d3{animation-delay:1.5s}.pulse.d4{animation-delay:2s}
.pulse.d5{animation-delay:2.5s}
@keyframes pulse{0%,100%{opacity:.35;r:3}50%{opacity:1;r:4.4}}

.map-caption{
  position:absolute;left:0;bottom:2px;font-family:var(--mono);
  font-size:10px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;
}

/* ---------- 跑马灯 ---------- */
.marquee{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--paper-2);overflow:hidden;padding:15px 0;
}
.marquee-track{display:flex;width:max-content;animation:slide 42s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.marquee-item{
  display:inline-flex;align-items:center;gap:14px;padding:0 26px;
  font-size:13.5px;color:var(--ink-2);white-space:nowrap;letter-spacing:.02em;
}
.marquee-item::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--teal-2);opacity:.7}
.marquee-item.en{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

/* ---------- 服务 ---------- */
.services{background:var(--paper)}
.svc-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;margin-top:clamp(38px,4.6vw,58px);
}
.svc{
  position:relative;background:var(--paper);padding:clamp(24px,2.6vw,34px);
  transition:background .35s;overflow:hidden;
}
.svc::after{
  content:"";position:absolute;left:0;top:0;height:2px;width:0;background:var(--teal);
  transition:width .45s cubic-bezier(.2,.7,.3,1);
}
.svc:hover{background:#fff}
.svc:hover::after{width:100%}
.svc-no{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--muted);
  display:flex;align-items:center;justify-content:space-between;
}
.svc-no svg{width:18px;height:18px;color:var(--ink);opacity:.5;transition:opacity .3s,transform .35s}
.svc:hover .svc-no svg{opacity:1;transform:translate(2px,-2px);color:var(--teal)}
.svc h3{font-size:18.5px;margin-top:16px;letter-spacing:-.01em}
.svc p{font-size:14px;line-height:1.85;color:var(--ink-2);margin-top:11px;text-wrap:pretty}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}
.svc-tags span{
  font-size:11.5px;padding:3.5px 10px;border-radius:100px;
  background:var(--paper-2);color:var(--ink-2);letter-spacing:.01em;
}
.svc:hover .svc-tags span{background:var(--teal-soft);color:#0a6b58}

/* ---------- 能力 / 技术栈（深色） ---------- */
.stack{background:var(--night);color:#EDEAE4;position:relative;overflow:hidden;padding-bottom:clamp(56px,7vw,92px)}
.stack::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 70% at 20% 0%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse 70% 70% at 20% 0%,#000,transparent 72%);
  pointer-events:none;
}
.stack .container{position:relative}
.stack h2.title{color:#F7F5F1}
.stack h2.title em{color:var(--teal-2)}
.stack h2.title em::after{background:linear-gradient(90deg,rgba(23,191,164,.28),rgba(23,191,164,.04))}
.stack .lead{color:#A9B2BD}
.stack .eyebrow{color:var(--teal-2)}

.stack-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  margin-top:clamp(38px,4.6vw,56px);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r);overflow:hidden;
}
.stack-col{background:var(--night);padding:clamp(22px,2.4vw,30px);transition:background .35s}
.stack-col:hover{background:var(--night-2)}
.stack-col h4{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:#7E8B99;font-weight:400;
}
.stack-col .cap{font-size:17px;font-weight:600;margin-top:12px;color:#F2EFEA;letter-spacing:-.01em}
.stack-col ul{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.stack-col li{
  font-size:13px;color:#A9B2BD;display:flex;align-items:baseline;gap:9px;line-height:1.6;
}
.stack-col li::before{
  content:"";width:4px;height:4px;border-radius:50%;background:var(--teal-2);
  opacity:.6;flex-shrink:0;transform:translateY(-2px);
}

.stack-note{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:32px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13.5px;color:#8D97A3;
}
.stack-note strong{color:var(--teal-2);font-weight:500}

/* ---------- 流程 ---------- */
.process{background:var(--paper-2)}
.steps{margin-top:clamp(36px,4.4vw,54px);position:relative}
.steps::before{
  content:"";position:absolute;left:0;right:0;top:23px;height:1px;background:var(--line);
}
.step-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(14px,2vw,26px)}
.step{position:relative;padding-top:0}
.step-no{
  width:46px;height:46px;border-radius:50%;background:var(--paper);
  border:1px solid var(--line);display:grid;place-items:center;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--ink-2);
  position:relative;z-index:1;transition:background .35s,color .35s,border-color .35s,transform .35s;
}
.step:hover .step-no{background:var(--ink);color:#fff;border-color:var(--ink);transform:scale(1.06)}
.step h4{font-size:16px;margin-top:20px}
.step p{font-size:13.5px;color:var(--ink-2);margin-top:9px;line-height:1.8;text-wrap:pretty}
.step .dur{
  display:inline-block;justify-self:start;margin-top:13px;font-family:var(--mono);
  font-size:10.5px;letter-spacing:.1em;color:var(--teal);
  background:rgba(14,156,130,.09);padding:3px 9px;border-radius:100px;
}

/* ---------- 合作方式 ---------- */
.models{background:var(--paper)}
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,22px);margin-top:clamp(36px,4.4vw,54px)}
.model{
  border:1px solid var(--line);border-radius:var(--r);padding:clamp(24px,2.6vw,30px);
  background:rgba(255,255,255,.5);transition:transform .35s,box-shadow .35s,border-color .35s,background .35s;
  display:flex;flex-direction:column;
}
.model:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(17,21,26,.2);background:#fff}
.model-tag{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);
}
.model h4{font-size:20px;margin-top:13px;letter-spacing:-.015em}
.model p{font-size:13.8px;color:var(--ink-2);line-height:1.85;margin-top:11px;text-wrap:pretty}
.model ul{margin-top:18px;display:flex;flex-direction:column;gap:9px;font-size:13px;color:var(--ink-2)}
.model li{display:flex;gap:9px;align-items:flex-start}
.model li svg{width:14px;height:14px;color:var(--teal);flex-shrink:0;margin-top:4px}
.model .fit{
  margin-top:auto;padding-top:20px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--muted);margin-top:24px;
}
.model .fit b{color:var(--ink-2);font-weight:500}

/* ---------- 关于 ---------- */
.about{background:var(--paper-2)}
.about-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(30px,5vw,72px);align-items:start}
.about-copy p{color:var(--ink-2);font-size:15px;line-height:1.95;margin-top:16px;text-wrap:pretty}
.about-copy p strong{color:var(--ink);font-weight:600}
.principles{margin-top:32px;display:flex;flex-direction:column;gap:1px;background:var(--line);border-radius:12px;overflow:hidden;border:1px solid var(--line)}
.principle{background:var(--paper-2);padding:20px 22px;display:flex;gap:16px;align-items:flex-start;transition:background .3s}
.principle:hover{background:#fff}
.principle .idx{font-family:var(--mono);font-size:11px;color:var(--teal);letter-spacing:.08em;padding-top:4px}
.principle h5{margin:0;font-size:15px;font-weight:600}
.principle p{margin:6px 0 0;font-size:13.5px;color:var(--ink-2);line-height:1.8}

.factsheet{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:clamp(24px,2.8vw,34px);box-shadow:var(--shadow-sm);
}
.factsheet h4{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);font-weight:400;display:flex;justify-content:space-between;align-items:center;
}
.factsheet h4::after{content:"";flex:1;height:1px;background:var(--line);margin-left:14px}
.fact-row{
  display:grid;grid-template-columns:74px 1fr;gap:14px;
  padding:15px 0;border-bottom:1px solid var(--line-2);font-size:13.5px;
}
.fact-row:last-child{border-bottom:0;padding-bottom:0}
.fact-row dt{color:var(--muted);font-size:13px;margin:0}
.fact-row dd{margin:0;color:var(--ink);line-height:1.7}
.fact-row dd span{color:var(--muted);font-size:12.5px}
.scope{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line-2);
  font-size:12.8px;color:var(--ink-2);line-height:1.9;
}
.scope b{display:block;font-size:11px;font-family:var(--mono);letter-spacing:.14em;color:var(--muted);text-transform:uppercase;margin-bottom:8px;font-weight:400}

/* ---------- 联系 ---------- */
.contact{background:var(--paper);position:relative;overflow:hidden}
.contact::before{
  content:"";position:absolute;left:-160px;bottom:-200px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(23,191,164,.14),transparent 68%);pointer-events:none;
}
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:clamp(30px,5vw,70px);align-items:start;position:relative}

.contact-list{margin-top:34px;display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.contact-item{background:var(--paper);padding:18px 20px;display:flex;gap:14px;align-items:flex-start;transition:background .3s}
.contact-item:hover{background:#fff}
.contact-item .ic{
  width:34px;height:34px;border-radius:9px;background:var(--teal-soft);color:var(--teal);
  display:grid;place-items:center;flex-shrink:0;
}
.contact-item .ic svg{width:16px;height:16px}
.contact-item dt{font-size:11px;font-family:var(--mono);letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.contact-item dd{margin:3px 0 0;font-size:14.5px;color:var(--ink);line-height:1.6}
.contact-item dd small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}

.form-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:clamp(24px,3vw,38px);box-shadow:var(--shadow);
}
.form-card h3{font-size:21px;letter-spacing:-.015em}
.form-card .sub{font-size:13.5px;color:var(--muted);margin-top:7px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:12.5px;color:var(--ink-2);letter-spacing:.02em}
.field label i{color:var(--teal);font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid rgba(17,21,26,.16);border-radius:10px;
  padding:12px 14px;font-family:inherit;font-size:14px;color:var(--ink);
  background:#FCFBF9;transition:border-color .25s,box-shadow .25s,background .25s;
  appearance:none;
}
.field textarea{resize:vertical;min-height:96px;line-height:1.7}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2378838F' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:36px;cursor:pointer;
}
.field input::placeholder,.field textarea::placeholder{color:#A9B0B8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal);background:#fff;
  box-shadow:0 0 0 3px rgba(23,191,164,.14);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#D9534F;background:#fff7f6}
.err{font-size:11.5px;color:#C9403C;display:none;margin-top:-2px}
.field.invalid .err{display:block}

.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:24px}
.form-note{font-size:11.5px;color:var(--muted);line-height:1.7;max-width:30ch}
.form-success{
  display:none;text-align:center;padding:44px 20px;
}
.form-success.on{display:block;animation:fadeUp .5s ease both}
.form-success .tick{
  width:56px;height:56px;border-radius:50%;background:var(--teal-soft);color:var(--teal);
  display:grid;place-items:center;margin:0 auto 20px;
}
.form-success .tick svg{width:26px;height:26px}
.form-success h4{font-size:20px}
.form-success p{font-size:13.5px;color:var(--ink-2);margin-top:10px;line-height:1.85}
.form-success .again{
  margin-top:22px;font-size:13px;color:var(--teal);background:none;border:0;cursor:pointer;
  text-decoration:underline;text-underline-offset:3px;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--night);color:#8D97A3;padding:clamp(48px,6vw,72px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:clamp(24px,3vw,44px)}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
.footer-brand .brand-name{color:#F2EFEA}
.footer-brand p{font-size:13px;line-height:1.85;margin-top:16px;max-width:32ch;color:#7E8B99}
.footer-col h6{
  margin:0 0 16px;font-family:var(--mono);font-size:10px;letter-spacing:.18em;
  text-transform:uppercase;color:#67727E;font-weight:400;
}
.footer-col a,.footer-col li{font-size:13.5px;color:#A9B2BD;line-height:2.1;transition:color .2s}
.footer-col a:hover{color:var(--teal-2)}
.footer-bottom{
  margin-top:clamp(36px,4vw,54px);padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12px;color:#67727E;
}
.footer-bottom a{color:#A6B0BB;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--teal-2)}

/* ---------- 入场动画 ---------- */
.reveal{transition:opacity .8s cubic-bezier(.2,.7,.3,1),transform .8s cubic-bezier(.2,.7,.3,1)}
.js-anim .reveal{opacity:0;transform:translateY(22px)}
.js-anim .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}
.reveal.d5{transition-delay:.4s}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* 回到顶部 */
.to-top{
  position:fixed;right:26px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--ink);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .3s,transform .3s,background .25s;z-index:90;
  box-shadow:0 10px 24px -12px rgba(0,0,0,.6);
}
.to-top.on{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--teal)}
.to-top svg{width:16px;height:16px}

/* ---------- AI 漫剧服务卡 ---------- */
.svc-ai{background:linear-gradient(180deg,rgba(23,191,164,.055),rgba(23,191,164,0) 62%)}
.svc-ai .svc-no span{color:#0F9E88;letter-spacing:.14em}
.svc-ai:hover{background:linear-gradient(180deg,rgba(23,191,164,.09),rgba(23,191,164,.015) 62%)}
.svc-cta{padding:0;background:var(--night)}
.svc-cta:hover{background:var(--night-2)}
.svc-cta-in{display:flex;flex-direction:column;height:100%;padding:clamp(24px,2.6vw,34px);color:#EDEAE4;text-decoration:none}
.svc-cta-in .svc-no span{color:#7E8B99}
.svc-cta-in h3{font-size:18.5px;margin-top:16px;color:#F7F5F1;letter-spacing:-.01em}
.svc-cta-in p{font-size:14px;line-height:1.85;color:#A9B2BD;margin-top:11px;text-wrap:pretty}
.svc-cta-link{
  margin-top:auto;padding-top:24px;display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--teal-2);font-weight:500;
}
.svc-cta-link svg{width:16px;height:16px;transition:transform .35s}
.svc-cta-in:hover .svc-cta-link svg{transform:translateX(4px)}

/* ---------- AI 漫剧 ---------- */
.comic{background:var(--paper-2);position:relative;overflow:hidden}
.comic::before{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,191,164,.13),rgba(23,191,164,0) 68%);
  pointer-events:none;
}
.comic .container{position:relative}
.comic-grid{display:grid;grid-template-columns:1fr 1.16fr;gap:clamp(34px,4.4vw,60px);align-items:start}
.comic-lead{
  margin-top:18px;font-size:clamp(14.5px,1.15vw,16px);line-height:1.92;
  color:var(--ink-2);max-width:50ch;text-wrap:pretty;
}
.comic-list{list-style:none;margin-top:28px;display:flex;flex-direction:column;gap:15px}
.comic-list li{
  display:grid;grid-template-columns:76px 1fr;gap:14px;align-items:baseline;
  font-size:14px;line-height:1.82;color:var(--ink-2);text-wrap:pretty;
}
.comic-list b{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;font-weight:400;
  text-transform:uppercase;color:#0F9E88;
}
.comic-copy .btn{margin-top:30px}
.comic-flow{
  display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:1fr;gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
}
.cf{background:var(--paper-2);padding:clamp(20px,2.2vw,26px);transition:background .35s}
.cf:hover{background:#fff}
.cf .n{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:#0F9E88}
.cf h5{font-size:15px;margin-top:11px;letter-spacing:-.01em}
.cf p{font-size:12.8px;line-height:1.78;color:var(--ink-2);margin-top:7px;text-wrap:pretty}

@media (max-width:1024px){
  .comic-grid{grid-template-columns:1fr}
  .comic-lead,.comic-list{max-width:56ch}
}
@media (max-width:720px){
  .comic-flow{grid-template-columns:repeat(2,1fr)}
  .comic-list li{grid-template-columns:64px 1fr;gap:11px}
}
@media (max-width:480px){
  .comic-flow .cf{padding:18px 16px}
  .cf p{font-size:12.4px}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-grid{gap:clamp(20px,3vw,36px)}
  .hero-visual .map-wrap{max-width:370px}
  .hero h1{font-size:clamp(34px,4.9vw,54px)}
  .nav{gap:22px}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .svc-cta{grid-column:1/-1}
  .svc-cta-in{
    flex-direction:row;align-items:center;flex-wrap:wrap;gap:6px 28px;
    padding:clamp(30px,3.2vw,38px) clamp(24px,2.6vw,34px);
  }
  .svc-cta-in .svc-no{flex:none;width:auto}
  .svc-cta-in h3{margin:0;flex:none;white-space:nowrap}
  .svc-cta-in p{margin:0;flex:1;min-width:240px}
  .svc-cta-in .svc-cta-link{margin:0 0 0 auto;padding:0;white-space:nowrap}
  .stack-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(3,1fr);row-gap:34px}
  .steps::before{display:none}
  .model-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:34px}
  .header-tel{display:none}
}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{display:none}
}

@media (max-width:860px){
  .nav{
    position:fixed;inset:74px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    padding:8px var(--pad) 22px;transform:translateY(-14px);
    opacity:0;visibility:hidden;transition:opacity .3s,transform .3s,visibility .3s;
    box-shadow:0 24px 40px -30px rgba(17,21,26,.6);
  }
  body.nav-open .nav{opacity:1;visibility:visible;transform:none}
  .nav a{padding:15px 0;font-size:16px;border-bottom:1px solid var(--line-2)}
  .nav a::after{display:none}
  .nav a.active{color:var(--teal)}
  .nav-toggle{display:flex}
  .header-cta .btn{display:none}
  body.nav-open{overflow:hidden}
  .hero-stats{grid-template-columns:1fr 1fr;row-gap:24px}
  .hero-stats>div:nth-child(3){border-left:0;padding-left:0}
  .hero-stats>div:nth-child(n+3){padding-top:20px;border-top:1px solid var(--line-2)}
  .svc-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr;gap:18px}
  .marquee{padding:12px 0}
  .marquee-item{font-size:12.5px;padding:0 18px}
}

@media (max-width:560px){
  .svc-cta-in{flex-direction:column;align-items:flex-start;gap:0}
  .svc-cta-in h3{margin-top:16px}
  .svc-cta-in p{margin-top:10px;min-width:0}
  .svc-cta-in .svc-cta-link{margin:22px 0 0;padding:0}
  .hero{padding-top:104px}
  .hero::after{width:340px;height:340px;right:-120px;top:-20px;opacity:.7}
  .hero h1{font-size:clamp(32px,9.2vw,42px)}
  .hero-actions .btn{flex:1;min-width:0;padding:0 18px}
  .entry{padding-top:52px}
  .stack-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr;row-gap:26px}
  .step{display:grid;grid-template-columns:46px 1fr;gap:0 16px;align-items:start}
  .step-no{grid-row:1/span 3}
  .step h4{margin-top:0}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .form-note{max-width:none;text-align:center}
  .to-top{right:16px;bottom:16px}
  .model .fit{margin-top:20px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .js-anim .reveal{opacity:1 !important;transform:none !important}
}