:root{
  --paper:#f5f1e8;
  --paper-deep:#eee8dd;
  --ink:#1d1b18;
  --muted:#6e685f;
  --muted-2:#8e877d;
  --line:rgba(29,27,24,.14);
  --accent:#c56a47;
  --accent-deep:#a95034;
  --dark:#1f1d1a;
  --dark-2:#2a2723;
  --white:#fffdf8;
  --max:1180px;
  --display:ui-serif,"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC",serif;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",Arial,sans-serif;
}
*{box-sizing:border-box}
html{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;
}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(calc(100% - 48px),var(--max));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(245,241,232,.86);
  border-bottom:1px solid rgba(29,27,24,.08);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)
}
.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{
  font-family:var(--display);font-size:22px;font-weight:600;letter-spacing:.025em;white-space:nowrap
}
.nav-links{display:flex;align-items:center;gap:30px;color:#5d574f;font-size:14px}
.nav-links a{position:relative;padding:5px 0}
.nav-links a:after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--ink);transition:width .22s ease
}
.nav-links a:hover:after{width:100%}
.mobile-toggle{
  display:none;border:0;background:none;color:var(--ink);font-size:14px;padding:8px;cursor:pointer
}

.hero{min-height:780px;display:flex;align-items:center;border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{
  width:100%;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(390px,.95fr);
  gap:74px;align-items:center;padding:104px 0 116px
}
.hero h1,.section-title,.page-title{
  font-family:var(--display);font-weight:600;letter-spacing:-.045em;margin:0
}
.hero h1{font-size:clamp(48px,6.2vw,76px);line-height:1.16;max-width:780px}
.hero-copy{margin-top:32px;color:var(--muted);font-size:clamp(17px,1.7vw,20px);max-width:650px}
.hero-copy strong{color:var(--ink);font-weight:550}
.route-art{
  position:relative;aspect-ratio:1/1;max-width:520px;justify-self:end;
  border-radius:50%;background:
   radial-gradient(circle at 49% 47%,rgba(197,106,71,.14),transparent 22%),
   radial-gradient(circle at 35% 62%,rgba(29,27,24,.055),transparent 30%);
}
.route-art svg{width:100%;height:100%;display:block}
.route-art .route{fill:none;stroke:#93897c;stroke-width:1.3;stroke-linecap:round;stroke-dasharray:2 8}
.route-art .route-strong{fill:none;stroke:var(--accent);stroke-width:2.1;stroke-linecap:round}
.route-art .orbit{fill:none;stroke:rgba(29,27,24,.12);stroke-width:1}
.route-art .node{fill:var(--paper);stroke:#665f56;stroke-width:1.1}
.route-art .node-accent{fill:var(--accent);stroke:var(--accent)}
.route-art .label{
  font-family:var(--sans);font-size:11px;fill:#71695f;letter-spacing:.08em
}
.route-art .pulse{transform-origin:center;animation:pulse 3.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:1}}

.section{padding:116px 0;border-bottom:1px solid var(--line)}
.section-kicker{
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-deep);
  font-weight:600;margin-bottom:22px
}
.section-title{font-size:clamp(38px,4.7vw,58px);line-height:1.24;max-width:860px}
.section-copy{margin-top:28px;max-width:680px;color:var(--muted);font-size:18px;line-height:1.95}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.statement{
  font-family:var(--display);font-size:clamp(34px,4vw,50px);line-height:1.38;letter-spacing:-.035em
}
.statement .soft{color:#9a9186}
.statement .accent{color:var(--accent-deep)}

.path-panel{
  position:relative;min-height:370px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,1fr);align-items:center;gap:20px
}
.path-step{position:relative;padding:34px 22px}
.path-step:not(:last-child):after{
  content:"";position:absolute;right:-10px;top:50%;width:40px;border-top:1px solid #9a9186
}
.path-index{font-size:12px;color:var(--accent-deep);letter-spacing:.15em}
.path-step h3{
  font-family:var(--display);font-size:28px;font-weight:600;margin:36px 0 8px;letter-spacing:-.02em
}
.path-step p{margin:0;color:var(--muted);font-size:15px}

.identity{background:var(--dark);color:#f6f1e7}
.identity .section-kicker{color:#d88a69}
.identity .section-title{max-width:800px}
.identity .section-copy{color:#bdb6ad}
.identity-loop{
  margin-top:64px;display:grid;grid-template-columns:1fr auto 1fr;gap:30px;align-items:center
}
.loop-card{border-top:1px solid rgba(255,255,255,.2);padding-top:24px}
.loop-card .big{
  font-family:var(--display);font-size:30px;line-height:1.35;margin-bottom:8px
}
.loop-card p{color:#aaa39a;margin:0}
.loop-mark{font-size:30px;color:#d88a69}

.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:70px;border-top:1px solid var(--line)}
.network-item{padding:36px 34px 20px 0;border-right:1px solid var(--line)}
.network-item+ .network-item{padding-left:34px}
.network-item:last-child{border-right:0}
.network-item h3{font-family:var(--display);font-size:28px;margin:0 0 12px}
.network-item p{margin:0;color:var(--muted);font-size:15px}
.network-num{color:var(--accent-deep);font-size:12px;letter-spacing:.14em;margin-bottom:40px}

.company-bridge{
  display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end
}
.company-bridge .link{
  display:inline-flex;align-items:center;gap:10px;margin-top:28px;font-size:14px;border-bottom:1px solid var(--ink);padding-bottom:4px
}

.site-footer{background:var(--dark);color:#e9e2d8;padding:56px 0 48px}
.footer-top{display:flex;justify-content:space-between;gap:50px;align-items:flex-start}
.footer-brand{font-family:var(--display);font-size:25px}
.footer-meta{margin-top:13px;color:#aaa39a;font-size:13px}
.footer-links{display:flex;flex-wrap:wrap;gap:12px 24px;color:#c9c2b8;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.11);
  color:#908980;font-size:12px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap
}
.footer-bottom a:hover,.footer-links a:hover{color:#fff}

.company-hero{padding:116px 0 106px;border-bottom:1px solid var(--line)}
.company-hero h1{font-size:clamp(48px,6vw,72px);line-height:1.18;max-width:940px}
.company-hero p{margin:28px 0 0;color:var(--muted);font-size:19px;max-width:720px}
.info-row{
  display:grid;grid-template-columns:1.15fr .85fr;gap:70px;margin-top:60px;padding-top:42px;border-top:1px solid var(--line)
}
.info-copy{font-size:17px;color:var(--muted)}
.info-copy p{margin:0 0 18px}
.info-list{margin:0}
.info-pair{display:grid;grid-template-columns:105px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}
.info-pair dt{color:var(--muted-2);font-size:13px}
.info-pair dd{margin:0;font-size:14px}
.company-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.company-card{padding:34px 30px 32px;border-top:1px solid var(--ink);min-height:230px}
.company-card .n{font-size:12px;color:var(--accent-deep);letter-spacing:.14em}
.company-card h3{font-family:var(--display);font-size:27px;margin:48px 0 10px}
.company-card p{color:var(--muted);font-size:15px;margin:0}
.values-band{background:var(--dark);color:#f4efe7}
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;margin-top:60px}
.value{border-top:1px solid rgba(255,255,255,.22);padding-top:24px}
.value h3{font-family:var(--display);font-size:26px;margin:0 0 8px}
.value p{margin:0;color:#aaa39a;font-size:15px}

.page-head{padding:100px 0 60px;border-bottom:1px solid var(--line)}
.page-title{font-size:clamp(42px,5vw,60px);line-height:1.22}
.page-sub{color:var(--muted);margin-top:16px;font-size:15px}
.legal-wrap{padding:70px 0 110px}
.legal-doc{max-width:850px}
.legal-doc h2{
  font-family:var(--display);font-size:26px;margin:46px 0 12px;letter-spacing:-.02em
}
.legal-doc h2:first-of-type{margin-top:0}
.legal-doc p,.legal-doc li{color:#5f5a53;font-size:15px;line-height:1.95}
.legal-doc ul{padding-left:1.3em}
.legal-note{
  margin-top:42px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--muted-2)
}
.contact-box{max-width:760px;padding:10px 0 50px}
.contact-box .mail{
  display:inline-block;font-size:clamp(28px,4vw,44px);font-family:var(--display);
  border-bottom:1px solid var(--ink);line-height:1.35;margin-top:28px
}

@media(max-width:920px){
  .hero-grid,.split,.company-bridge,.info-row{grid-template-columns:1fr}
  .hero-grid{gap:50px;padding:82px 0 90px}.route-art{justify-self:start;max-width:440px}
  .path-panel{grid-template-columns:1fr}.path-step:not(:last-child):after{display:none}
  .network-grid,.company-cards,.values-grid{grid-template-columns:1fr}
  .network-item,.network-item+ .network-item{padding:28px 0;border-right:0;border-bottom:1px solid var(--line)}
  .identity-loop{grid-template-columns:1fr}.loop-mark{transform:rotate(90deg);justify-self:start}
}
@media(max-width:720px){
  .container{width:min(calc(100% - 30px),var(--max))}
  .nav{min-height:66px}.brand{font-size:19px}
  .mobile-toggle{display:block}.nav-links{
    display:none;position:absolute;top:66px;left:0;right:0;background:var(--paper);
    border-bottom:1px solid var(--line);padding:18px 20px 22px;flex-direction:column;align-items:flex-start;gap:13px
  }
  .nav-links.open{display:flex}
  .hero{min-height:auto}.hero h1{letter-spacing:-.035em}
  .section{padding:82px 0}.section-copy{font-size:16px}
  .company-hero{padding:80px 0 74px}
  .footer-top{flex-direction:column}
  .footer-links{gap:10px 18px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.route-art .pulse{animation:none}
}

/* ===== 麦田行者首页 V2：重新布局与抽象概念图 ===== */
.product-hero{
  min-height:720px;
  display:flex;
  align-items:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.product-hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(440px,.98fr);
  gap:82px;
  align-items:center;
  padding:86px 0 96px;
}
.product-hero-copy{min-width:0}
.product-hero-copy h1,
.editorial-section h2,
.role-section h2,
.network-row-v2 h3,
.concept-mini h3{
  font-family:var(--display);
  font-weight:600;
  letter-spacing:-.04em;
  margin:0;
}
.product-hero-copy h1{
  font-size:clamp(46px,4.45vw,62px);
  line-height:1.2;
  max-width:690px;
}
.product-hero-copy p{
  margin:28px 0 0;
  max-width:590px;
  color:var(--muted);
  font-size:17px;
  line-height:1.95;
}
.product-hero-copy p strong{color:var(--ink);font-weight:560}
.quiet-label{
  margin-top:42px;
  color:var(--muted-2);
  font-size:12px;
  letter-spacing:.14em;
}
.concept-stack{display:grid;gap:16px;min-width:0}
.concept-main,
.concept-mini{
  border:1px solid var(--line);
  background:rgba(255,253,248,.45);
}
.concept-main{
  border-radius:34px;
  min-height:342px;
  padding:16px 20px 15px;
  background:linear-gradient(180deg,rgba(255,253,248,.68),rgba(238,232,221,.5));
}
.concept-main svg{width:100%;height:285px}
.concept-caption{
  padding:2px 8px 4px;
  color:var(--muted-2);
  font-size:12px;
  letter-spacing:.1em;
}
.concept-text{
  font-family:var(--sans);
  font-size:10.5px;
  fill:#746c62;
  letter-spacing:.06em;
}
.concept-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.concept-mini{
  border-radius:24px;
  padding:18px 20px 19px;
  min-height:174px;
}
.concept-mini svg{width:100%;height:58px;margin:2px 0 4px}
.concept-no{color:var(--accent-deep);font-size:11px;letter-spacing:.15em}
.concept-mini h3{font-size:22px;line-height:1.3}
.concept-mini p{margin:7px 0 0;color:var(--muted);font-size:13px;line-height:1.7}

.editorial-section{
  padding:108px 0;
  border-bottom:1px solid var(--line);
}
.small-label{
  margin-bottom:20px;
  color:var(--accent-deep);
  font-size:12px;
  font-weight:650;
  letter-spacing:.14em;
}
.editorial-section h2,
.role-section h2{
  font-size:clamp(36px,4vw,52px);
  line-height:1.3;
  max-width:790px;
}
.lead-copy{
  margin:25px 0 0;
  max-width:660px;
  color:var(--muted);
  font-size:16px;
  line-height:1.95;
}
.idea-layout-v2{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(420px,1.08fr);
  gap:88px;
  align-items:center;
}
.wide-concept{
  margin:0;
  min-width:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:24px 0 18px;
}
.wide-concept svg{width:100%;height:285px}
.wide-concept figcaption{
  color:var(--muted-2);
  font-size:12px;
  letter-spacing:.045em;
}

.role-section{
  padding:110px 0;
  background:var(--dark);
  color:#f5efe6;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.role-layout{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(430px,1.15fr);
  gap:88px;
  align-items:center;
}
.small-label-dark{color:#dc8967}
.role-section p{
  margin:26px 0 0;
  max-width:600px;
  color:#b8b0a7;
  font-size:16px;
  line-height:1.95;
}
.role-concept{margin:0;min-height:380px}
.role-concept svg{width:100%;height:100%}
.role-text{
  font-family:var(--display);
  font-size:15px;
  fill:#f5efe6;
}
.role-subtext{
  font-family:var(--sans);
  font-size:10px;
  fill:#aaa198;
  letter-spacing:.05em;
}

.network-head-v2{
  display:grid;
  grid-template-columns:1fr .72fr;
  gap:74px;
  align-items:end;
}
.network-head-v2 .lead-copy{margin:0}
.network-rows-v2{margin-top:66px;border-top:1px solid var(--line)}
.network-row-v2{
  min-height:190px;
  display:grid;
  grid-template-columns:82px 170px minmax(260px,1fr) 300px;
  gap:28px;
  align-items:center;
  border-bottom:1px solid var(--line);
}
.row-index{color:var(--accent-deep);font-size:12px;letter-spacing:.15em}
.network-row-v2 h3{font-size:28px;line-height:1.3}
.network-row-v2 p{margin:0;color:var(--muted);font-size:14px;line-height:1.85;max-width:460px}
.network-row-v2 svg{width:100%;height:110px}

.about-v2{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(350px,.8fr);
  gap:90px;
  align-items:end;
}
.simple-link{
  display:inline-flex;
  margin-top:26px;
  padding-bottom:4px;
  border-bottom:1px solid var(--ink);
  font-size:14px;
}
.about-abstract{width:100%;height:145px;margin-top:30px}

@media(max-width:1020px){
  .product-hero-grid,.idea-layout-v2,.role-layout,.about-v2{grid-template-columns:1fr}
  .product-hero-grid{gap:52px}
  .concept-stack{max-width:680px}
  .wide-concept{max-width:760px}
  .role-concept{max-width:660px}
  .network-head-v2{grid-template-columns:1fr}
  .network-head-v2 .lead-copy{margin-top:0}
  .network-row-v2{grid-template-columns:62px 150px 1fr;padding:24px 0}
  .network-row-v2 svg{grid-column:2 / 4;height:105px}
}
@media(max-width:720px){
  .product-hero{min-height:auto}
  .product-hero-grid{padding:70px 0 76px;gap:42px}
  .product-hero-copy h1{font-size:clamp(40px,11.8vw,52px);letter-spacing:-.035em}
  .product-hero-copy p{font-size:15px}
  .quiet-label{margin-top:30px}
  .concept-main{min-height:270px;border-radius:28px}
  .concept-main svg{height:230px}
  .concept-mini-grid{grid-template-columns:1fr}
  .concept-mini{min-height:146px}
  .editorial-section,.role-section{padding:78px 0}
  .idea-layout-v2,.role-layout{gap:45px}
  .wide-concept svg{height:230px}
  .role-concept{min-height:300px}
  .network-row-v2{grid-template-columns:48px 1fr;gap:16px;padding:28px 0}
  .network-row-v2 p{grid-column:2}
  .network-row-v2 svg{grid-column:1 / -1;height:100px}
}