/* =========================================================
   上海灵活用工平台 · 主样式表
   ========================================================= */

:root{
  --ink:#0F1E2E;
  --ink-2:#22303F;
  --muted:#5E6E7E;
  --muted-2:#8794A1;
  --line:#E4E8ED;
  --line-2:#EDF0F4;
  --paper:#FFFFFF;
  --paper-2:#F6F7F9;
  --navy:#0F2237;
  --navy-2:#132C45;
  --gold:#B98A4E;
  --gold-soft:#F5EEE4;
  --green:#2E7D64;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(15,30,46,.04), 0 6px 18px -8px rgba(15,30,46,.10);
  --shadow-md:0 2px 4px rgba(15,30,46,.04), 0 18px 40px -20px rgba(15,30,46,.22);
  --serif:"Songti SC","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.28;letter-spacing:-.01em}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(185,138,78,.22)}

.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 28px}
.br-m{display:none}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--navy);color:#fff;padding:10px 18px;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:8px;border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--navy);color:#fff;box-shadow:0 10px 24px -14px rgba(15,34,55,.9)}
.btn--primary:hover{background:#0A1A2B;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(15,34,55,.75)}
.btn--ghost{background:transparent;color:var(--ink);border-color:rgba(15,30,46,.16)}
.btn--ghost:hover{border-color:var(--ink);background:rgba(15,30,46,.03)}
.btn--line{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn--line:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.5)}
.btn--block{width:100%}
.btn--sm{height:42px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(0)}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;
  color:var(--ink);padding-bottom:2px;border-bottom:1px solid rgba(15,30,46,.25);
  transition:gap .25s var(--ease),border-color .25s var(--ease);
}
.link-arrow:hover{gap:10px;border-color:var(--gold);color:var(--gold)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(15,30,46,.02),0 10px 30px -24px rgba(15,30,46,.4)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:24px}

.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{display:block;line-height:0}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;font-weight:600;letter-spacing:.01em}
.brand-text em{
  font-style:normal;font-size:9px;letter-spacing:.16em;color:var(--muted-2);
  font-weight:500;margin-top:2px;
}

.nav{display:flex;align-items:center;gap:4px}
.nav a{
  position:relative;font-size:14.5px;color:var(--ink-2);padding:8px 14px;border-radius:6px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav a:hover{color:var(--navy);background:rgba(15,30,46,.04)}
.nav a.is-active{color:var(--navy);font-weight:500}
.nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1.5px;background:var(--gold);
}
.nav .nav-cta{
  margin-left:10px;background:var(--navy);color:#fff;padding:9px 20px;border-radius:6px;font-weight:500;
}
.nav .nav-cta:hover{background:#0A1A2B;color:#fff}
.nav .nav-cta::after{display:none}

/* 导航内的电话 */
.nav .nav-phone{
  display:inline-flex;align-items:center;gap:7px;margin-left:6px;
  flex-shrink:0;white-space:nowrap;
  font-size:14px;font-weight:600;color:var(--navy);letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  padding:8px 4px;
}
.nav .nav-phone svg{color:var(--gold);flex-shrink:0}
.nav .nav-phone:hover{color:var(--gold);background:transparent}
.nav .nav-phone::after{display:none}

/* 正文内联电话 */
.inline-phone{color:var(--navy);font-weight:600;border-bottom:1px solid rgba(199,154,98,.6);padding-bottom:1px}
.inline-phone:hover{color:var(--gold)}

.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:8px;
  padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;width:18px;height:1.5px;background:var(--ink);border-radius:2px;
  transition:transform .28s var(--ease),opacity .2s var(--ease);
}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FCFCFD 0%,#FFFFFF 62%,#FBFBFC 100%)}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(15,30,46,.045) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(15,30,46,.045) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(120% 80% at 68% 18%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(120% 80% at 68% 18%,#000 0%,transparent 72%);
  opacity:.9;
}
.hero-glow{
  position:absolute;right:-8%;top:-24%;width:780px;height:780px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(185,138,78,.13),rgba(185,138,78,0) 62%);
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
  padding-top:84px;padding-bottom:72px;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:.14em;font-weight:500;color:var(--gold);
  text-transform:uppercase;margin-bottom:22px;
}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(185,138,78,.14)}
.eyebrow--dark{color:#8A7355}
.eyebrow--dark .dot{background:#8A7355}

.hero h1{
  font-family:var(--sans);
  font-size:clamp(38px,4.4vw,58px);
  line-height:1.18;letter-spacing:-.025em;font-weight:600;color:var(--navy);
}
.hero h1 .serif-accent{font-family:var(--serif);font-weight:600;letter-spacing:.01em;position:relative;display:inline-block}
.hero h1 .serif-accent::after{
  content:"";position:absolute;left:0;right:2px;bottom:6px;height:9px;background:rgba(185,138,78,.16);z-index:-1;
}
.hero-sub{
  margin-top:26px;max-width:520px;font-size:16.5px;line-height:1.9;color:var(--muted);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

.hero-metrics{
  display:flex;gap:44px;margin-top:56px;padding-top:30px;border-top:1px solid var(--line);
}
.hero-metrics li{display:flex;flex-direction:column;gap:2px}
.hero-metrics strong{font-size:30px;font-weight:600;letter-spacing:-.02em;color:var(--navy);line-height:1.2}
.hero-metrics strong em{font-style:normal;font-size:18px;color:var(--gold);margin-left:1px}
.hero-metrics span{font-size:13px;color:var(--muted-2);letter-spacing:.02em}

/* Hero 视觉卡片 */
.hero-visual{position:relative;padding:12px 0}
.panel{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 28px 24px;box-shadow:0 40px 80px -48px rgba(15,30,46,.45),0 2px 6px rgba(15,30,46,.04);
}
.panel::before{
  content:"";position:absolute;inset:-1px;border-radius:calc(var(--radius-lg) + 1px);
  background:linear-gradient(150deg,rgba(185,138,78,.35),transparent 38%,transparent 70%,rgba(15,34,55,.12));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;pointer-events:none;
}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line-2)}
.panel-label{display:block;font-size:11.5px;letter-spacing:.1em;color:var(--muted-2);margin-bottom:6px}
.panel-title{font-size:17px;font-weight:600;color:var(--navy)}
.pill{font-size:11.5px;padding:4px 10px;border-radius:100px;letter-spacing:.04em;white-space:nowrap}
.pill--ok{background:rgba(46,125,100,.1);color:var(--green)}

.panel-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:15px 0;border-bottom:1px solid var(--line-2);
}
.panel-row span{font-size:13.5px;color:var(--muted)}
.panel-row b{font-size:17px;font-weight:600;color:var(--navy);letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.panel-row b i{font-style:normal;font-size:12px;color:var(--muted-2);font-weight:400;margin-left:3px}

.panel-chart{padding-top:22px}
.bars{display:flex;align-items:flex-end;gap:9px;height:78px}
.bars span{
  flex:1;height:var(--h);border-radius:4px 4px 2px 2px;
  background:linear-gradient(180deg,rgba(15,34,55,.86),rgba(15,34,55,.22));
  animation:barGrow .9s var(--ease) both;
}
.bars span:nth-child(2){animation-delay:.05s}
.bars span:nth-child(3){animation-delay:.1s}
.bars span:nth-child(4){animation-delay:.15s}
.bars span:nth-child(5){animation-delay:.2s}
.bars span:nth-child(6){animation-delay:.25s}
.bars span:nth-child(7){animation-delay:.3s}
.bars span:nth-child(8){animation-delay:.35s;background:linear-gradient(180deg,var(--gold),rgba(185,138,78,.35))}
@keyframes barGrow{from{height:0;opacity:0}to{height:var(--h);opacity:1}}
.chart-foot{display:flex;justify-content:space-between;margin-top:12px;font-size:11.5px;color:var(--muted-2)}
.chart-foot .up{color:var(--green);font-variant-numeric:tabular-nums}

.float-card{
  position:absolute;display:flex;align-items:center;gap:11px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:12px;padding:12px 16px;
  box-shadow:0 18px 40px -26px rgba(15,30,46,.5);
}
.float-card b{display:block;font-size:13px;font-weight:600;color:var(--navy);line-height:1.4}
.float-card span{display:block;font-size:11px;color:var(--muted-2);letter-spacing:.02em}
.float-card--top{top:2px;right:-14px}
.float-card--bottom{bottom:6px;left:-22px}
.float-card .seal{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--gold-soft);color:#96703D;font-size:11px;font-weight:600;letter-spacing:.04em;
}

.hero-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.6)}
.strip-inner{display:flex;align-items:center;gap:30px;min-height:62px}
.strip-inner>span{font-size:12px;letter-spacing:.14em;color:var(--muted-2);white-space:nowrap}
.strip-inner ul{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13.5px;color:var(--ink-2)}
.strip-inner li{position:relative;padding-left:0;color:var(--muted)}

/* ---------- 区块基础 ---------- */
.section{padding:104px 0;position:relative}
.section--paper{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:56px}
.section-head h2{font-size:clamp(28px,3vw,40px);letter-spacing:-.02em;color:var(--navy);line-height:1.32}
.section-sub{margin-top:18px;font-size:15.5px;line-height:1.9;color:var(--muted);max-width:620px}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;max-width:none}
.section-head--split .section-sub{margin-top:0;max-width:400px;padding-bottom:6px}
.section-head--light h2{color:#F2F5F8}
.section-head--light .section-sub{color:rgba(255,255,255,.62)}
.section-head--light .eyebrow{color:#C79A62}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius)}
.pain-card{background:#fff;padding:34px 28px 30px;transition:background .3s var(--ease)}
.pain-card:first-child{border-radius:var(--radius) 0 0 var(--radius)}
.pain-card:last-child{border-radius:0 var(--radius) var(--radius) 0}
.pain-card:hover{background:#FCFCFD}
.pain-num{display:block;font-size:12px;letter-spacing:.12em;color:var(--gold);font-weight:500;margin-bottom:26px}
.pain-card h3{font-size:17.5px;margin-bottom:12px;color:var(--navy);line-height:1.5}
.pain-card p{font-size:14px;line-height:1.85;color:var(--muted)}

/* ---------- 服务 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.service-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 32px 30px;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease);
}
.service-card:hover{border-color:#D3DAE2;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.service-card--feature{background:linear-gradient(168deg,#FBF8F3 0%,#FFFFFF 46%)}
.service-icon{
  width:44px;height:44px;border-radius:11px;display:grid;place-items:center;
  background:rgba(15,34,55,.05);color:var(--navy);margin-bottom:22px;
}
.service-card--feature .service-icon{background:rgba(185,138,78,.13);color:#8E6A3A}
.service-card h3{font-size:19.5px;color:var(--navy);margin-bottom:12px}
.service-card>p{font-size:14.5px;line-height:1.85;color:var(--muted)}
.ticks{margin-top:22px;display:grid;gap:9px;padding-top:20px;border-top:1px solid var(--line-2)}
.ticks li{position:relative;padding-left:20px;font-size:13.5px;color:var(--ink-2)}
.ticks li::before{
  content:"";position:absolute;left:2px;top:9px;width:9px;height:5px;
  border-left:1.4px solid var(--gold);border-bottom:1.4px solid var(--gold);
  transform:rotate(-45deg);border-radius:1px;
}
.service-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:38px;padding-top:28px;border-top:1px solid var(--line)}
.service-foot p{font-size:14.5px;color:var(--muted)}

/* ---------- 场景（深色） ---------- */
.section--dark{background:var(--navy);color:#fff;overflow:hidden}
.section--dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 12% 8%,rgba(199,154,98,.14),transparent 42%),
                   radial-gradient(circle at 88% 92%,rgba(46,125,164,.18),transparent 48%);
  pointer-events:none;
}
.section--dark .wrap{position:relative}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);overflow:hidden}
.scene-card{background:rgba(255,255,255,.02);padding:32px 28px;transition:background .3s var(--ease)}
.scene-card:hover{background:rgba(255,255,255,.055)}
.scene-card h3{font-size:17px;color:#fff;margin-bottom:10px}
.scene-card p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.58)}

/* ---------- 流程 ---------- */
.timeline{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  border-top:1px solid var(--line);padding-top:0;
}
.timeline li{
  position:relative;padding:34px 22px 0 0;border-right:1px solid var(--line-2);
}
.timeline li:last-child{border-right:none;padding-right:0}
.timeline li::before{
  content:"";position:absolute;top:-4.5px;left:0;width:8px;height:8px;border-radius:50%;
  background:#fff;border:1.6px solid var(--gold);
}
.t-step{display:block;font-size:11.5px;letter-spacing:.12em;color:var(--gold);font-weight:500;margin-bottom:16px}
.timeline h3{font-size:17px;color:var(--navy);margin-bottom:10px}
.timeline p{font-size:13.5px;line-height:1.8;color:var(--muted);min-height:74px}
.t-time{display:inline-block;margin-top:14px;font-size:11.5px;color:var(--muted-2);background:var(--paper-2);padding:3px 9px;border-radius:100px}

/* ---------- 合规 ---------- */
.compliance-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:64px;align-items:start}
.check-list{margin-top:38px;display:grid;gap:0}
.check-list>div{padding:22px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:110px 1fr;gap:20px}
.check-list>div:last-child{border-bottom:1px solid var(--line)}
.check-list dt{font-size:15px;font-weight:600;color:var(--navy);position:relative;padding-left:20px}
.check-list dt::before{
  content:"";position:absolute;left:0;top:8px;width:9px;height:5px;
  border-left:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);transform:rotate(-45deg);
}
.check-list dd{font-size:14px;line-height:1.85;color:var(--muted)}

.compliance-aside{position:sticky;top:104px}
.aside-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:32px 30px;box-shadow:0 30px 60px -40px rgba(15,34,55,.7)}
.aside-label{font-size:11.5px;letter-spacing:.14em;color:#C79A62;margin-bottom:22px}
.aside-card ul{display:grid;gap:0}
.aside-card li{display:flex;gap:12px;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.78);padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.aside-card li span{font-size:11px;color:rgba(255,255,255,.35);padding-top:3px;font-variant-numeric:tabular-nums}
.aside-card .btn{margin-top:26px;width:100%}
.aside-note{margin-top:14px;font-size:11.5px;line-height:1.7;color:var(--muted-2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.accordion{border-top:1px solid var(--line)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:24px 4px;cursor:pointer;list-style:none;font-size:16.5px;font-weight:500;color:var(--navy);
  transition:color .2s var(--ease);
}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item summary:hover{color:#0A1A2B}
.acc-icon{position:relative;width:18px;height:18px;flex-shrink:0}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--muted);border-radius:2px;transition:transform .3s var(--ease),background .3s var(--ease);
}
.acc-icon::before{left:0;top:8px;width:18px;height:1.5px}
.acc-icon::after{left:8px;top:0;width:1.5px;height:18px}
.acc-item[open] .acc-icon::after{transform:rotate(90deg)}
.acc-item[open] .acc-icon::before{background:var(--gold)}
.acc-body{padding:0 60px 26px 4px;animation:fadeIn .35s var(--ease)}
.acc-body p{font-size:14.5px;line-height:1.95;color:var(--muted)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- 咨询表单 ---------- */
.section--contact{background:linear-gradient(180deg,#F6F7F9 0%,#F2F4F7 100%);position:relative;overflow:hidden}
.section--contact::before{
  content:"";position:absolute;left:-10%;top:-20%;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(185,138,78,.1),transparent 65%);
}
.section--contact .wrap{position:relative}
.contact-inner{display:grid;grid-template-columns:.92fr 1.08fr;gap:64px;align-items:start}
.contact-copy h2{font-size:clamp(28px,3vw,38px);line-height:1.34;color:var(--navy);letter-spacing:-.02em}
.contact-points{margin-top:40px;display:grid;gap:20px}
.contact-points li{display:flex;gap:14px;align-items:flex-start}
.cp-icon{
  width:34px;height:34px;border-radius:9px;background:#fff;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--navy);flex-shrink:0;
}
.contact-points b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.contact-points span{display:block;font-size:13px;color:var(--muted);line-height:1.7}

.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 40px 34px;box-shadow:0 30px 60px -44px rgba(15,30,46,.5),0 1px 3px rgba(15,30,46,.03);
}
.form-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:26px}
.form-head h3{font-size:20px;color:var(--navy)}
.form-head p{font-size:12px;color:var(--muted-2)}

.lead-form .field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field label{font-size:13px;color:var(--ink-2);font-weight:500;letter-spacing:.01em}
.req{color:#B4534B}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:8px;background:#FCFCFD;
  font-size:14px;color:var(--ink);transition:border-color .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
  appearance:none;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:86px;line-height:1.7}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20'%3E%3Cpath d='m6 8 4 4 4-4' fill='none' stroke='%235E6E7E' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%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:#A8B3BE}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--navy);background:#fff;box-shadow:0 0 0 3.5px rgba(15,34,55,.07);
}
.field input.is-error,.field select.is-error{border-color:#C4695F;background:#FEF9F8}
.field-err{display:block;font-size:12px;color:#B4534B;min-height:0;line-height:1.5}
.field-err:not(:empty){margin-top:-8px;margin-bottom:10px}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.checkbox{display:flex;gap:9px;align-items:flex-start;font-size:12.5px;color:var(--muted);line-height:1.7;cursor:pointer;margin:4px 0 20px}
.checkbox input{
  appearance:none;-webkit-appearance:none;width:16px;height:16px;border:1px solid #C9D1D9;border-radius:4px;
  margin:2px 0 0;flex-shrink:0;background:#fff;cursor:pointer;position:relative;transition:all .2s var(--ease);
}
.checkbox input:checked{background:var(--navy);border-color:var(--navy)}
.checkbox input:checked::after{
  content:"";position:absolute;left:4.5px;top:1.5px;width:5px;height:9px;
  border-right:1.6px solid #fff;border-bottom:1.6px solid #fff;transform:rotate(40deg);
}
.checkbox input:focus-visible{box-shadow:0 0 0 3px rgba(15,34,55,.14)}
.checkbox a{color:var(--ink);border-bottom:1px solid rgba(15,30,46,.28)}
.checkbox a:hover{color:var(--gold);border-color:var(--gold)}

.lead-form .btn--block{margin-top:4px}
.btn.is-loading .btn-label{opacity:0}
.btn.is-loading .btn-loading{
  display:block;position:absolute;width:18px;height:18px;border:2px solid rgba(255,255,255,.28);
  border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;
}
.lead-form .btn{position:relative}
@keyframes spin{to{transform:rotate(360deg)}}
.form-note{margin-top:14px;font-size:11.5px;line-height:1.7;color:var(--muted-2);text-align:center}
.form-alert{font-size:13px;color:#B4534B;margin-top:10px;text-align:center;min-height:0}
.form-alert:not(:empty){padding:9px 12px;background:#FDF3F2;border-radius:6px}

.form-success{text-align:center;padding:34px 8px 26px}
.success-mark{
  width:56px;height:56px;border-radius:50%;background:rgba(46,125,100,.1);color:var(--green);
  display:grid;place-items:center;margin:0 auto 22px;
}
.form-success h3{font-size:20px;color:var(--navy);margin-bottom:12px}
.form-success p{font-size:14px;line-height:1.9;color:var(--muted);margin-bottom:26px}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1A29;color:rgba(255,255,255,.7);padding-top:64px}
.footer-top{display:grid;grid-template-columns:1.8fr .8fr .8fr;gap:44px;padding-bottom:52px}
.brand--footer .brand-text strong{color:#fff;font-size:16px}
.brand--footer .brand-text em{color:rgba(255,255,255,.32)}
.footer-brand p{margin-top:20px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.45)}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:20px;font-weight:600}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.55);padding:6px 0;transition:color .2s var(--ease)}
.footer-col a:hover{color:#C79A62}

.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;padding-bottom:32px;border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;color:rgba(255,255,255,.35);
}
.footer-legal{display:flex;gap:18px}
.footer-legal a{transition:color .2s}
.footer-legal a:hover{color:#C79A62}

/* ---------- 移动端浮框 & 浮层 ---------- */
.mobile-cta{
  display:none;position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));
  z-index:70;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:14px;padding:11px 12px 11px 16px;
  align-items:center;justify-content:space-between;gap:14px;
  box-shadow:0 14px 40px -14px rgba(15,30,46,.4);
  transform:translateY(120%);transition:transform .45s var(--ease);
}
.mobile-cta.is-visible{transform:translateY(0)}
.mobile-cta-text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.mobile-cta-text b{font-size:14px;color:var(--navy);font-weight:600}
.mobile-cta-text span{font-size:11px;color:var(--muted-2);margin-top:2px}
.mobile-cta .btn{flex-shrink:0;background:var(--navy)}

.sheet{position:fixed;inset:0;z-index:90;visibility:hidden}
.sheet.is-open{visibility:visible}
.sheet-mask{
  position:absolute;inset:0;background:rgba(11,26,41,.45);opacity:0;
  transition:opacity .3s var(--ease);backdrop-filter:blur(2px);
}
.sheet.is-open .sheet-mask{opacity:1}
.sheet-panel{
  position:absolute;left:0;right:0;bottom:0;background:#fff;
  border-radius:20px 20px 0 0;padding:26px 22px calc(26px + env(safe-area-inset-bottom));
  transform:translateY(100%);transition:transform .38s var(--ease);
  max-height:92vh;overflow-y:auto;
}
.sheet.is-open .sheet-panel{transform:translateY(0)}
.sheet-close{
  position:absolute;right:14px;top:14px;width:34px;height:34px;border:0;background:var(--paper-2);
  border-radius:50%;display:grid;place-items:center;color:var(--muted);
}
.sheet-panel h3{font-size:19px;color:var(--navy)}
.sheet-sub{font-size:12.5px;color:var(--muted-2);margin-top:4px;margin-bottom:22px}
.lead-form--sheet .field{margin-bottom:14px}
.lead-form--sheet .field input{height:44px}
.lead-form--sheet .checkbox{margin:2px 0 16px}
.sheet-success{text-align:center;padding:20px 0 8px}
.sheet-success h4{font-size:18px;color:var(--navy);margin-bottom:8px}
.sheet-success p{font-size:13.5px;color:var(--muted);margin-bottom:22px}
body.is-locked{overflow:hidden}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:52px;padding-top:64px;padding-bottom:64px}
  .hero-sub{max-width:600px}
  .hero-visual{max-width:560px;margin:0 auto;width:100%}
  .float-card--top{right:0}
  .float-card--bottom{left:0}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .pain-card:first-child{border-radius:var(--radius) 0 0 0}
  .pain-card:nth-child(2){border-radius:0 var(--radius) 0 0}
  .pain-card:nth-child(3){border-radius:0 0 0 var(--radius)}
  .pain-card:last-child{border-radius:0 0 var(--radius) 0}
  .compliance-inner{grid-template-columns:1fr;gap:44px}
  .compliance-aside{position:static}
  .contact-inner{grid-template-columns:1fr;gap:40px}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
}

@media (max-width:900px){
  :root{--header-h:66px}
  .nav-toggle{display:block}
  .nav{
    position:fixed;left:0;right:0;top:var(--header-h);z-index:55;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 20px 22px;box-shadow:0 20px 40px -24px rgba(15,30,46,.3);
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
  }
  .nav.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}
  .nav a{padding:13px 4px;font-size:15px;border-bottom:1px solid var(--line-2)}
  .nav a::after{display:none!important}
  .nav .nav-cta{margin:14px 0 0;text-align:center;padding:13px;border-bottom:none}

  .section{padding:72px 0}
  .br-m{display:block}
  .section-head{margin-bottom:40px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:16px}
  .section-head--split .section-sub{padding-bottom:0}

  .hero-metrics{gap:28px;margin-top:40px;padding-top:24px}
  .hero-metrics strong{font-size:24px}
  .hero-metrics span{font-size:11.5px}

  .service-grid{grid-template-columns:1fr;gap:16px}
  .service-card{padding:28px 24px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:1fr;border-top:none;padding-top:0}
  .timeline li{border-right:none;border-left:1px solid var(--line-2);padding:0 0 30px 24px}
  .timeline li::before{top:6px;left:-4.5px}
  .timeline li:last-child{padding-bottom:0}
  .timeline p{min-height:0}
  .t-time{margin-top:10px}

  .contact-card{padding:28px 22px 26px}
  .field-row{grid-template-columns:1fr;gap:0}
  .service-foot{flex-direction:column;align-items:flex-start;gap:14px}

  .mobile-cta{display:flex}
  body{padding-bottom:0}
  .site-footer{padding-bottom:96px}
  .acc-body{padding-right:24px}
}

@media (max-width:560px){
  .wrap{padding:0 20px}
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:8px;letter-spacing:.12em}
  .brand-mark svg{width:28px;height:28px}

  .hero h1{font-size:34px;line-height:1.24}
  .hero-sub{font-size:15px;margin-top:20px}
  .hero-actions{gap:10px;margin-top:30px}
  .hero-actions .btn{flex:1;min-width:0;padding:0 16px;font-size:14px}
  .hero-inner{padding-top:46px;padding-bottom:46px}

  .panel{padding:20px 20px 18px}
  .panel-row{padding:12px 0}
  .panel-row b{font-size:15px}
  .float-card{padding:10px 12px;border-radius:10px}
  .float-card b{font-size:12px}
  .float-card span{font-size:10px}
  .float-card--top{right:-4px;top:-6px}
  .float-card--bottom{left:-4px;bottom:-10px}
  .hero-strip .strip-inner{flex-direction:column;align-items:flex-start;gap:8px;padding:16px 0}
  .strip-inner ul{gap:8px 18px;font-size:13px}

  .pain-grid{grid-template-columns:1fr}
  .pain-card{padding:26px 22px}
  .pain-card:nth-child(n){border-radius:0}
  .pain-card:first-child{border-radius:var(--radius) var(--radius) 0 0}
  .pain-card:last-child{border-radius:0 0 var(--radius) var(--radius)}
  .pain-num{margin-bottom:14px}

  .scene-grid{grid-template-columns:1fr}
  .scene-card{padding:26px 22px}

  .section-head h2{font-size:26px}
  .contact-copy h2{font-size:26px}
  .check-list>div{grid-template-columns:1fr;gap:8px}
  .check-list dt{padding-left:18px}

  .footer-top{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .form-head{flex-direction:column;gap:4px;align-items:flex-start}

  .mobile-cta{padding:10px 12px 10px 14px;border-radius:12px}
  .mobile-cta-text b{font-size:13px}
  .mobile-cta-text span{font-size:10px}
  .mobile-cta .btn{padding:0 15px;font-size:13px;height:40px}
}

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

/* =========================================================
   内页组件
   ========================================================= */

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;padding:68px 0 60px;border-bottom:1px solid var(--line);overflow:hidden;
  background:linear-gradient(180deg,#FCFCFD 0%,#FFFFFF 100%);
}
.page-hero::before{
  content:"";position:absolute;right:-6%;top:-40%;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(185,138,78,.11),transparent 65%);
}
.page-hero .wrap{position:relative}
.page-hero--slim{padding:52px 0 44px}
.crumb{display:flex;align-items:center;gap:9px;font-size:12.5px;color:var(--muted-2);margin-bottom:26px}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--gold)}
.crumb span{color:#C6CDD4}
.page-hero h1{font-size:clamp(32px,3.7vw,48px);line-height:1.28;letter-spacing:-.025em;color:var(--navy)}
.page-lead{margin-top:24px;max-width:700px;font-size:15.5px;line-height:1.95;color:var(--muted)}
.page-hero .hero-actions{margin-top:34px}

/* ---------- 页内目录 ---------- */
.subnav{
  position:sticky;top:var(--header-h);z-index:40;background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.subnav-inner{display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.subnav-inner::-webkit-scrollbar{display:none}
.subnav a{
  position:relative;flex-shrink:0;font-size:14px;color:var(--muted);padding:16px 14px;
  transition:color .2s var(--ease);white-space:nowrap;
}
.subnav a:first-child{padding-left:0}
.subnav a:hover,.subnav a.is-active{color:var(--navy)}
.subnav a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--gold)}
.subnav a:first-child.is-active::after{left:0}

/* ---------- 服务详情 ---------- */
.split-block{display:grid;grid-template-columns:1fr .56fr;gap:72px;align-items:start}
.block-num{
  display:block;font-family:var(--serif);font-size:44px;line-height:1;color:rgba(185,138,78,.42);
  margin-bottom:18px;letter-spacing:.02em;
}
.split-main h2{font-size:clamp(26px,2.6vw,34px);color:var(--navy);letter-spacing:-.02em}
.block-lead{margin-top:18px;font-size:15.5px;line-height:1.95;color:var(--muted);max-width:560px}

.num-list{margin-top:40px;border-top:1px solid var(--line)}
.num-list li{
  display:grid;grid-template-columns:132px 1fr;gap:24px;
  padding:22px 0;border-bottom:1px solid var(--line-2);
}
.num-list b{font-size:15px;font-weight:600;color:var(--navy);line-height:1.7;position:relative;padding-left:16px}
.num-list b::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--gold)}
.num-list span{font-size:14px;line-height:1.85;color:var(--muted)}

.split-side{position:sticky;top:calc(var(--header-h) + 76px)}
.side-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;
}
.side-label{font-size:11px;letter-spacing:.16em;color:var(--muted-2);margin-bottom:20px;text-transform:uppercase}
.side-ticks{display:grid;gap:10px;padding-bottom:6px}
.side-ticks li{position:relative;padding-left:19px;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.side-ticks li::before{
  content:"";position:absolute;left:1px;top:8px;width:8px;height:4px;
  border-left:1.4px solid var(--gold);border-bottom:1.4px solid var(--gold);transform:rotate(-45deg);
}
.side-meta{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:12px 0;margin-top:6px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.side-meta b{font-size:13px;color:var(--navy);font-weight:600}
.side-card .btn{margin-top:20px;width:100%}

/* ---------- 合作模式 ---------- */
.model-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.model-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px 30px;
  display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.model-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D3DAE2}
.model-card--feature{background:var(--navy);border-color:var(--navy);color:#fff}
.model-tag{font-size:11px;letter-spacing:.14em;color:var(--gold);margin-bottom:14px}
.model-card h3{font-size:20px;margin-bottom:12px;color:var(--navy)}
.model-card--feature h3{color:#fff}
.model-card>p:not(.model-tag){font-size:13.5px;line-height:1.85;color:var(--muted)}
.model-card--feature>p:not(.model-tag){color:rgba(255,255,255,.6)}
.side-ticks--dark{margin-top:24px;padding-top:20px;border-top:1px solid var(--line-2)}
.model-card--feature .side-ticks--dark{border-top-color:rgba(255,255,255,.14)}
.side-ticks--dark li{color:var(--ink-2)}
.model-card--feature .side-ticks--dark li{color:rgba(255,255,255,.78)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--navy);color:#fff;padding:64px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 78% 20%,rgba(199,154,98,.18),transparent 45%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.3vw,28px);color:#fff;letter-spacing:-.01em}
.cta-inner p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.6);max-width:480px;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn--primary{background:#fff;color:var(--navy)}
.cta-band .btn--primary:hover{background:#F2F4F7}
.cta-band .btn--ghost{color:#fff;border-color:rgba(255,255,255,.26)}
.cta-band .btn--ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5)}

/* ---------- 关于我们 ---------- */
.about-intro{display:grid;grid-template-columns:1.3fr .7fr;gap:72px;align-items:start}
.about-copy h2{font-size:clamp(26px,2.8vw,34px);line-height:1.4;color:var(--navy)}
.about-copy p{font-size:15px;line-height:2;color:var(--muted);margin-top:20px}
.about-copy p:first-of-type{margin-top:26px}

.stat-card{background:var(--navy);border-radius:var(--radius);padding:32px 30px;color:#fff;position:sticky;top:calc(var(--header-h) + 24px)}
.stat-card .side-label{color:rgba(255,255,255,.4)}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.stat-row b{font-size:28px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat-row b em{font-style:normal;font-size:15px;color:#C79A62;margin-left:2px}
.stat-row span{font-size:12.5px;color:rgba(255,255,255,.55)}
.stat-note{margin-top:18px;font-size:11px;color:rgba(255,255,255,.32);line-height:1.7}

.boundary-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.boundary-card{border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px;background:#fff}
.boundary-card--no{background:#FCFCFD}
.boundary-card h3{display:flex;align-items:center;gap:10px;font-size:17px;color:var(--navy);margin-bottom:22px}
.mark{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;font-size:12px;line-height:1}
.mark--yes{background:rgba(46,125,100,.12);color:var(--green)}
.mark--no{background:rgba(15,30,46,.06);color:var(--muted-2)}
.boundary-card ul{display:grid;gap:13px}
.boundary-card li{position:relative;padding-left:16px;font-size:13.5px;line-height:1.75;color:var(--muted)}
.boundary-card li::before{content:"";position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:#C6CDD4}

.milestones{border-top:1px solid var(--line);max-width:900px}
.milestones li{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:26px 0;border-bottom:1px solid var(--line-2)}
.ms-year{font-family:var(--serif);font-size:24px;color:var(--gold);letter-spacing:.02em;line-height:1.4}
.milestones h3{font-size:16px;color:var(--navy);margin-bottom:6px}
.milestones p{font-size:13.5px;line-height:1.8;color:var(--muted)}

.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);overflow:hidden}
.promise{background:rgba(255,255,255,.02);padding:30px 26px;transition:background .3s var(--ease)}
.promise:hover{background:rgba(255,255,255,.055)}
.promise>span{display:block;font-size:11px;letter-spacing:.14em;color:#C79A62;margin-bottom:18px}
.promise h3{font-size:16px;color:#fff;margin-bottom:10px}
.promise p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.55)}

/* ---------- 长文 ---------- */
.prose-wrap{max-width:820px}
.prose-lead{font-size:16.5px;line-height:2;color:var(--ink-2)}
.prose h2{font-size:19px;color:var(--navy);margin:44px 0 16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.prose p{font-size:14.5px;line-height:2;color:var(--muted);margin-bottom:14px}
.prose ul{display:grid;gap:10px;margin:8px 0 18px}
.prose li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.95;color:var(--muted)}
.prose li::before{content:"";position:absolute;left:0;top:11px;width:4px;height:4px;border-radius:50%;background:var(--gold)}
.prose b{color:var(--ink-2);font-weight:600}
.prose a{color:var(--navy);border-bottom:1px solid rgba(15,30,46,.25)}
.prose a:hover{color:var(--gold);border-color:var(--gold)}
.prose-note{margin-top:40px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:8px;font-size:12.5px;color:var(--muted-2);line-height:1.8}
.back-link{display:inline-flex;align-items:center;gap:7px;margin-top:36px;font-size:13.5px;color:var(--muted)}
.back-link:hover{color:var(--navy)}

/* ---------- 404 ---------- */
.error-page{min-height:100vh;display:grid;place-items:center;background:var(--paper-2);padding:24px}
.error-box{text-align:center;max-width:460px}
.error-code{font-family:var(--serif);font-size:76px;line-height:1;color:rgba(185,138,78,.5);letter-spacing:.04em}
.error-box h1{font-size:24px;color:var(--navy);margin:18px 0 10px}
.error-box p{font-size:14px;color:var(--muted)}
.error-actions{display:flex;gap:12px;justify-content:center;margin-top:30px;flex-wrap:wrap}

/* ---------- 内页响应式 ---------- */
@media (max-width:1080px){
  .split-block{grid-template-columns:1fr;gap:40px}
  .split-side{position:static}
  .side-card{max-width:520px}
  .about-intro{grid-template-columns:1fr;gap:40px}
  .stat-card{position:static;max-width:520px}
  .model-grid{grid-template-columns:1fr;gap:14px}
  .promise-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .page-hero{padding:48px 0 44px}
  .page-hero--slim{padding:38px 0 34px}
  .subnav{top:var(--header-h)}
  .num-list li{grid-template-columns:1fr;gap:6px}
  .boundary-grid{grid-template-columns:1fr}
  .cta-band{padding:48px 0}
  .cta-inner{gap:24px}
  .site-footer{padding-bottom:104px}
}
@media (max-width:560px){
  .page-hero h1{font-size:29px}
  .page-lead{font-size:14.5px;margin-top:18px}
  .block-num{font-size:34px}
  .side-card{padding:24px 20px}
  .milestones li{grid-template-columns:1fr;gap:6px;padding:20px 0}
  .ms-year{font-size:20px}
  .promise-grid{grid-template-columns:1fr}
  .prose h2{font-size:17px;margin-top:34px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1;min-width:0;padding:0 14px;font-size:14px}
}