/* Ground Truth China — demo stylesheet
   Placeholder brand. Editorial / field-notes look.
   Fonts: system serif + system sans. No network dependency. */

:root{
  --paper:#faf8f3;
  --ink:#17130e;
  --ink-soft:#4a443c;
  --rule:#d9d2c4;
  --accent:#a8381c;
  --wash:#f1ebe1;
  --max:1080px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Songti SC",serif;
  font-weight:600;
  line-height:1.15;
  letter-spacing:-0.015em;
  margin:0;
}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px;}

/* ---------- header ---------- */
header{
  border-bottom:1px solid var(--rule);
  position:sticky;top:0;background:rgba(250,248,243,.92);
  backdrop-filter:saturate(180%) blur(8px);z-index:20;
}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px;}
.brand{display:flex;align-items:baseline;gap:10px;font-family:Georgia,serif;font-weight:700;letter-spacing:.12em;font-size:15px;text-transform:uppercase;}
.brand .dot{width:7px;height:7px;background:var(--accent);border-radius:50%;display:inline-block;}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--ink-soft);}
.nav ul a:hover{color:var(--accent);}
.nav .cta{
  font-size:13px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--ink);padding:9px 16px;border-radius:2px;
}
.nav .cta:hover{background:var(--ink);color:var(--paper);}
@media(max-width:820px){.nav ul{display:none;}}

/* ---------- hero ---------- */
.hero{padding:96px 0 76px;border-bottom:1px solid var(--rule);}
.eyebrow{
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);margin-bottom:26px;
}
.hero h1{font-size:clamp(38px,6.2vw,68px);}
.hero h1 .l2{display:block;font-size:.58em;line-height:1.22;margin-top:26px;max-width:26ch;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero .sub{
  margin-top:30px;font-size:20px;line-height:1.6;max-width:56ch;color:var(--ink-soft);
}
.hero .sub strong{color:var(--ink);font-weight:600;}
.actions{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.btn{
  display:inline-block;padding:14px 24px;border-radius:2px;font-size:15px;
  border:1px solid var(--ink);transition:.15s;
}
.btn.primary{background:var(--ink);color:var(--paper);}
.btn.primary:hover{background:var(--accent);border-color:var(--accent);}
.btn.ghost:hover{background:var(--wash);}
.meta{margin-top:44px;display:flex;gap:34px;flex-wrap:wrap;font-size:13px;color:var(--ink-soft);letter-spacing:.04em;}
.meta b{display:block;font-family:Georgia,serif;font-size:22px;color:var(--ink);letter-spacing:0;}

/* ---------- section scaffolding ---------- */
section{padding:78px 0;border-bottom:1px solid var(--rule);}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;gap:20px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);max-width:20ch;}
.sec-head p{max-width:38ch;color:var(--ink-soft);font-size:15.5px;margin:0;}

/* ---------- the gap ---------- */
.gap{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--rule);}
.gap > div{padding:30px 28px 30px 0;border-right:1px solid var(--rule);}
.gap > div:last-child{border-right:0;padding-right:0;}
.gap .n{font-family:Georgia,serif;font-size:12px;letter-spacing:.2em;color:var(--accent);margin-bottom:14px;}
.gap h3{font-size:22px;margin-bottom:12px;}
.gap p{margin:0;font-size:15.5px;color:var(--ink-soft);}
.gap .me{background:var(--wash);padding:30px 28px;margin:0 -28px 0 0;}
.gap .me p{color:var(--ink);}
@media(max-width:820px){
  .gap{grid-template-columns:1fr;}
  .gap > div{border-right:0;border-bottom:1px solid var(--rule);padding:26px 0;}
  .gap .me{margin:0;padding:26px 22px;}
}

.punch{
  margin-top:40px;font-family:Georgia,serif;font-size:clamp(21px,2.6vw,28px);
  line-height:1.45;max-width:34ch;
}
.punch span{color:var(--accent);}

/* ---------- cases ---------- */
.cases{display:grid;gap:26px;}
.case{
  border:1px solid var(--rule);background:#fff;padding:38px 40px;border-radius:2px;
  display:grid;grid-template-columns:1fr 210px;gap:40px;align-items:start;
}
.case .txt h3{font-size:26px;margin-bottom:16px;}
.case .txt p{margin:0 0 14px;color:var(--ink-soft);font-size:16px;}
.case .txt p:last-child{margin-bottom:0;}
.case .txt .q{border-left:3px solid var(--accent);padding-left:16px;color:var(--ink);font-style:italic;}
.case aside{
  border-left:1px solid var(--rule);padding-left:26px;font-size:13.5px;color:var(--ink-soft);
}
.case aside .lab{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:8px;}
.case aside p{margin:0 0 18px;}
@media(max-width:820px){
  .case{grid-template-columns:1fr;padding:28px 24px;gap:24px;}
  .case aside{border-left:0;border-top:1px solid var(--rule);padding-left:0;padding-top:20px;}
}

/* ---------- services ---------- */
.svc{border-top:1px solid var(--rule);}
.svc-row{
  display:grid;grid-template-columns:1.5fr 130px 1fr;gap:26px;
  padding:22px 0;border-bottom:1px solid var(--rule);align-items:baseline;
}
.svc-row .name{font-family:Georgia,serif;font-size:20px;}
.svc-row .price{font-size:15px;color:var(--accent);white-space:nowrap;}
.svc-row .what{font-size:14.5px;color:var(--ink-soft);}
.svc-row .flag{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-left:8px;}
@media(max-width:820px){
  .svc-row{grid-template-columns:1fr;gap:6px;}
}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--rule);}
.steps > div{padding:26px 24px 26px 0;border-right:1px solid var(--rule);}
.steps > div:last-child{border-right:0;}
.steps > div:before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  font-family:Georgia,serif;font-size:12px;letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:12px;
}
.steps h3{font-size:18px;margin-bottom:8px;}
.steps p{margin:0;font-size:14.5px;color:var(--ink-soft);}
@media(max-width:820px){.steps{grid-template-columns:1fr 1fr;}.steps > div{border-right:0;border-bottom:1px solid var(--rule);padding:22px 18px 22px 0;}}

/* ---------- fit ---------- */
.fit{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--rule);}
.fit > div{padding:30px 34px 30px 0;}
.fit > div:last-child{border-left:1px solid var(--rule);padding:30px 0 30px 34px;}
.fit h3{font-size:15px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px;}
.fit ul{margin:0;padding-left:20px;color:var(--ink-soft);font-size:15.5px;}
.fit li{margin-bottom:10px;}
.fit .no h3{color:var(--accent);}
@media(max-width:820px){.fit{grid-template-columns:1fr;}.fit > div{padding:26px 0;}.fit > div:last-child{border-left:0;border-top:1px solid var(--rule);padding:26px 0;}}

/* ---------- about ---------- */
.about{display:grid;grid-template-columns:1fr 1.35fr;gap:56px;}
.about .photo{
  background:var(--wash);border:1px solid var(--rule);aspect-ratio:4/5;border-radius:2px;
  display:flex;align-items:center;justify-content:center;color:#a99e8a;font-size:12px;letter-spacing:.18em;text-transform:uppercase;
}
.about h2{font-size:clamp(26px,3.2vw,34px);margin-bottom:22px;}
.about p{color:var(--ink-soft);margin:0 0 16px;}
.about p.lead{color:var(--ink);font-size:18px;}
@media(max-width:820px){.about{grid-template-columns:1fr;gap:28px;}.about .photo{aspect-ratio:16/10;}}

/* ---------- notes ---------- */
.notes{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.note{display:block;border:1px solid var(--rule);padding:28px;background:#fff;transition:.15s;}
.note:hover{border-color:var(--ink);transform:translateY(-2px);}
.note .k{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:12px;}
.note h3{font-size:21px;margin-bottom:10px;}
.note p{margin:0;color:var(--ink-soft);font-size:14.5px;}
@media(max-width:820px){.notes{grid-template-columns:1fr;}}

/* ---------- close ---------- */
.close{padding:88px 0;text-align:left;}
.close h2{font-size:clamp(30px,4.4vw,46px);max-width:20ch;margin-bottom:24px;}
.close p{color:var(--ink-soft);max-width:52ch;margin:0 0 32px;font-size:18px;}

footer{border-top:1px solid var(--rule);padding:34px 0 60px;font-size:13px;color:var(--ink-soft);}
footer .row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;}
footer a:hover{color:var(--accent);}

/* ---------- article / field note ---------- */
.post{padding:76px 0 70px;}
.post h1{font-size:clamp(32px,4.6vw,54px);max-width:22ch;margin-bottom:26px;}
.post-summary{
  font-size:20px;line-height:1.55;color:var(--ink-soft);max-width:54ch;
  margin:0 0 46px;padding-bottom:34px;border-bottom:1px solid var(--rule);
}
.post-body{max-width:68ch;font-size:18px;line-height:1.78;}
.post-body h2{font-size:28px;margin:46px 0 16px;}
.post-body h3{font-size:22px;margin:34px 0 12px;}
.post-body p{margin:0 0 22px;}
.post-body ul,.post-body ol{margin:0 0 22px;padding-left:24px;}
.post-body li{margin-bottom:9px;}
.post-body blockquote{margin:30px 0;padding:2px 0 2px 22px;border-left:3px solid var(--accent);}
.post-body blockquote p{margin:0 0 8px;color:var(--ink);font-style:italic;}
.post-body blockquote p:last-child{margin:0;}
.post-body hr{border:0;border-top:1px solid var(--rule);margin:42px 0;}
.post-body code{background:var(--wash);padding:2px 6px;border-radius:2px;font-size:.9em;}
.post-body a{color:var(--accent);text-decoration:underline;text-underline-offset:2px;}
.post-cta{margin-top:60px;padding:34px;background:var(--wash);border-radius:2px;max-width:68ch;}
.post-cta p{margin:0 0 18px;}
.post-cta p:last-child{margin:0;}
.post-back{margin-top:42px;font-size:14px;}
.post-back a:hover{color:var(--accent);}

/* Issue 02 等未发布的卡片：不可点，弱化 hover */
.note.is-soon{cursor:default;opacity:.72;}
.note.is-soon:hover{border-color:var(--rule);transform:none;}