/* Unfiltered China — site styles */
/* Craft of Origin — site styles */
:root{
  --ink:#2A2622;
  --ink-2:#4B443B;
  --muted:#7C7368;
  --bg:#FDFBF6;
  --bg-soft:#F4EFE5;
  --line:#E5DDD0;
  --accent:#6E7B4F;
  --accent-dark:#55613A;
  --accent-soft:#EEEFE3;
  --gold:#A9702A;
  --radius:10px;
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font:16px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:64px 0}
section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h1,h2,h3{line-height:1.22;letter-spacing:-.01em;margin:0 0 16px;font-family:ui-serif,Georgia,'Iowan Old Style','Times New Roman',serif;font-weight:600}
h1{font-size:44px;font-weight:700}
h2{font-size:30px;font-weight:650}
h3{font-size:20px;font-weight:650}
p{margin:0 0 16px}
.lede{font-size:19px;color:var(--ink-2)}
.muted{color:var(--muted)}
.small{font-size:14px}
.center{text-align:center}
.kicker{
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);margin:0 0 12px
}

/* ---------- nav ---------- */
header.nav{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)
}
.nav-in{display:flex;align-items:center;gap:24px;height:62px}
.brand{font-weight:750;font-size:18px;color:var(--ink);letter-spacing:-.02em}
.brand span{color:var(--accent)}
.nav-links{display:flex;gap:22px;margin-left:auto;align-items:center;font-size:15px}
.nav-links a{color:var(--ink-2)}
.nav-links a:hover{color:var(--accent);text-decoration:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;background:var(--accent);color:#fff;font-weight:650;
  padding:13px 22px;border-radius:var(--radius);border:1px solid var(--accent);
  font-size:16px;cursor:pointer;text-decoration:none
}
.btn:hover{background:var(--accent-dark);text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--bg-soft)}
.btn.sm{padding:9px 16px;font-size:14px}

/* ---------- hero ---------- */
.hero{padding:76px 0 56px}
.hero h1{max-width:900px}
.hero .lede{max-width:680px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.byline{
  display:flex;gap:14px;align-items:center;margin-top:34px;padding-top:22px;
  border-top:1px solid var(--line);font-size:14px;color:var(--muted);max-width:680px
}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--accent-soft);
  color:var(--accent-dark);display:flex;align-items:center;justify-content:center;
  font-weight:750;flex:0 0 44px
}

/* ---------- cards ---------- */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;flex-direction:column
}
.card.soft{background:var(--bg-soft)}
.card h3{margin-bottom:8px}
.card ul{margin:12px 0 0;padding-left:18px;color:var(--ink-2);font-size:15px}
.card li{margin-bottom:6px}
.price{font-size:32px;font-weight:750;letter-spacing:-.02em;margin:6px 0 2px}
.price small{font-size:15px;font-weight:500;color:var(--muted)}
.card .btn{margin-top:auto;align-self:flex-start}
.badge{
  display:inline-block;background:var(--accent-soft);color:var(--accent-dark);
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:99px;letter-spacing:.04em
}

/* ---------- email form ---------- */
.signup{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.signup form{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.signup input[type=email]{
  flex:1 1 260px;min-width:220px;padding:12px 14px;border:1px solid var(--line);
  border-radius:var(--radius);font-size:16px;background:#fff;color:var(--ink)
}
.signup input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.fineprint{font-size:13px;color:var(--muted);margin-top:12px}

/* ---------- page-level diagrams ---------- */
.mat-art{height:104px;border-radius:8px;margin-bottom:16px;overflow:hidden;border:1px solid var(--line)}
.mat-art svg{display:block;width:100%;height:104px}

.timeline{margin:0 0 32px}
.timeline svg{display:block;width:100%;height:auto}
.flowbox,.figurebox{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px
}
.flowbox svg,.figurebox svg{display:block;width:100%;height:auto}

/* good / bad comparison — the most useful diagram on the site */
.checks{display:grid;gap:18px}
.check{
  display:grid;grid-template-columns:1fr 1fr;background:#fff;margin-top:16px;
  border:1px solid var(--line);border-radius:8px;overflow:hidden
}
.check-side{padding:18px 20px 20px}
.check-side + .check-side{border-left:1px solid var(--line)}
.check-side.bad{background:#FCF8F3}
.check-tag{
  font-size:11px;font-weight:750;letter-spacing:.11em;text-transform:uppercase;margin-bottom:10px
}
.check-side.good .check-tag{color:var(--accent-dark)}
.check-side.bad .check-tag{color:#9C6B24}
.check-art svg{display:block;width:100%;height:92px}
.check-note{font-size:14px;color:var(--ink-2);margin:10px 0 0}

/* spec cards with icon */
.spec{display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start}
.spec-art svg{display:block;width:44px;height:40px}
.spec h3{margin-bottom:4px;font-size:17px}
.spec p{margin:0;font-size:15px;color:var(--ink-2)}
.card .spec p.big{font-size:22px;color:var(--ink);font-weight:650;font-family:ui-serif,Georgia,serif}

@media (max-width:820px){
  .check{grid-template-columns:1fr}
  .check-side + .check-side{border-left:0;border-top:1px solid var(--line)}
}

/* ---------- visual layer: woven texture, diagrams ---------- */
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center}
.figure{margin:0}
.figure svg{display:block;width:100%;height:auto}
.figcap{font-size:12.5px;color:var(--muted);margin-top:10px;text-align:center;letter-spacing:.01em}

.band{height:30px;opacity:.55;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band svg{display:block;width:100%;height:30px}

.mat-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
.chip{
  display:inline-block;background:#fff;border:1px solid var(--line);border-radius:99px;
  padding:5px 13px;font-size:13px;color:var(--ink-2);white-space:nowrap
}
.chip.hi{background:var(--accent-soft);border-color:#D6DCC2;color:var(--accent-dark);font-weight:600}

/* pieces */
.piece{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s,border-color .18s
}
.piece:hover{box-shadow:0 8px 26px rgba(42,38,34,.09);border-color:#D8CFBA}
.piece-art{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:22px 22px 18px}
.piece-art svg{display:block;width:100%;height:auto}
.piece-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.piece-body h3{margin-bottom:8px}
.piece-body p{font-size:15px;color:var(--ink-2);margin-bottom:0}
.piece-meta{display:flex;gap:7px;flex-wrap:wrap;margin:16px 0 0!important}

/* process steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{border-top:2px solid var(--line);padding-top:16px}
.step .n{
  font-family:ui-serif,Georgia,serif;font-size:13px;font-weight:700;letter-spacing:.1em;
  color:var(--accent);display:block;margin-bottom:9px
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14.5px;color:var(--ink-2);margin:0}
.step-art{margin-bottom:12px}
.step-art svg{display:block;width:54px;height:44px}

/* card icon */
.claims{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.claim{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.claim-art svg{display:block;width:46px;height:40px;margin-bottom:14px}
.claim h3{margin-bottom:8px}
.claim p{font-size:15px;color:var(--ink-2);margin:0}

@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .claims,.g3,.g2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:20px}
}
@media (max-width:520px){ .steps{grid-template-columns:1fr} }

/* ---------- content pages ---------- */
.doc{max-width:760px;margin:0 auto;padding:56px 24px 80px}
.doc h2{margin-top:40px;font-size:24px}
.doc h3{margin-top:26px;font-size:18px}
.doc ul,.doc ol{padding-left:22px;color:var(--ink-2)}
.doc li{margin-bottom:8px}
.doc table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.doc th,.doc td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.doc th{background:var(--bg-soft);font-weight:650}
.callout{
  background:var(--accent-soft);border-left:3px solid var(--accent);
  padding:14px 18px;border-radius:0 var(--radius) var(--radius) 0;margin:20px 0;font-size:15px
}
.toc{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin:24px 0}
.toc ol{margin:8px 0 0}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:36px 0;font-size:14px;color:var(--muted);background:var(--bg-soft)}
.foot-in{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.foot-links{display:flex;gap:18px;margin-left:auto}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--accent)}

@media (max-width:820px){
  h1{font-size:34px}
  h2{font-size:25px}
  .g3,.g2{grid-template-columns:1fr}
  .nav-links{gap:14px;font-size:14px}
  section{padding:48px 0}
}
@media print{
  header.nav,.hero-cta,footer,.signup form{display:none}
  body{font-size:12px}
}

/* ---- MailerLite embedded form 适配 ---- */
.ml-embedded{max-width:520px;margin:0}
.ml-embedded .ml-form-embedWrapper{margin:0!important}
.ml-embedded input[type=email]{width:100%}

/* ---- 私人中文阅读层（?zh=1 才出现，普通访客不可见）---- */
html[lang="zh-CN"] body{
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.85;
}
html[lang="zh-CN"] h1,html[lang="zh-CN"] h2,html[lang="zh-CN"] h3{line-height:1.45;letter-spacing:0}
html[lang="zh-CN"] .lede,html[lang="zh-CN"] p{letter-spacing:.2px}
#uc-langbar{
  position:fixed;right:14px;bottom:14px;z-index:9999;
  display:flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:10px;
  background:#111;border:1px solid #333;color:#ddd;
  font-size:12px;box-shadow:0 6px 20px rgba(0,0,0,.35);
}
#uc-langbar .uc-lb-title{opacity:.6;margin-right:2px}
#uc-langbar .uc-lb-btn{
  background:#222;color:#bbb;border:1px solid #3a3a3a;border-radius:6px;
  padding:3px 9px;cursor:pointer;font-size:12px;
}
#uc-langbar .uc-lb-btn.uc-lb-on{background:#3f6b4f;color:#fff;border-color:#3f6b4f}
#uc-langbar .uc-lb-note{opacity:.5;font-size:11px;margin-left:4px}
@media print{#uc-langbar{display:none}}