@font-face{font-family:Outfit;font-style:normal;font-weight:500;font-display:swap;src:url("../../assets/fonts/outfit.woff2") format("woff2")}
@font-face{font-family:Outfit;font-style:normal;font-weight:700;font-display:swap;src:url("../../assets/fonts/outfit-700.woff2") format("woff2")}

:root{
  --bg:#FAFAF8;
  --bg-soft:#F3F2EE;
  --surface:#FFFFFF;
  --elev:#FFFFFF;
  --elev-2:#F7F6F2;
  --ink:#1A1814;
  --ink-2:#4A453E;
  --muted:#7A736A;
  --faint:#9A9288;
  --line:rgba(26,24,20,.08);
  --line-2:rgba(26,24,20,.14);
  --brand:#099268;
  --brand-deep:#077A56;
  --brand-soft:rgba(9,146,104,.10);
  --brand-glow:rgba(9,146,104,.18);
  --brass:#A8844E;
  --brass-soft:rgba(168,132,78,.12);
  --lock:#9A7A4A;
  --radius:14px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow-card:0 1px 0 rgba(255,255,255,.8) inset, 0 8px 28px rgba(26,24,20,.06);
  --font-display:"Outfit","PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  --nav-h:64px;
  --bottom-h:64px;
  --max:1180px;
  --btn-h:44px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
body::before{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(ellipse 70% 45% at 50% -8%, rgba(9,146,104,.06), transparent 55%),
    radial-gradient(ellipse 40% 30% at 100% 0%, rgba(196,165,116,.05), transparent 50%),
    linear-gradient(180deg, #FAFAF8 0%, #F5F4F0 100%);
}
body::after{
  content:"";
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.18;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  background-size:180px 180px;
  mix-blend-mode:multiply;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
img{display:block;max-width:100%}
ul{list-style:none}
.wrap{position:relative;z-index:1}

/* ——— Top nav ——— */
.topnav{
  position:sticky;top:0;z-index:50;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 28px;
  background:rgba(250,250,248,.86);
  backdrop-filter:blur(16px) saturate(1.15);
  -webkit-backdrop-filter:blur(16px) saturate(1.15);
  border-bottom:1px solid var(--line);
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:600;font-size:15px;letter-spacing:.01em}
.brand img{width:30px;height:30px;border-radius:8px}
.brand span{font-family:var(--font-display);font-weight:700;letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--ink-2);
  transition:color .2s, background .2s;
}
.nav-links a:hover{color:var(--ink);background:rgba(26,24,20,.04)}
.nav-links a.on{color:var(--ink);background:rgba(26,24,20,.06);font-weight:600}
.nav-acts{display:flex;align-items:center;gap:8px}

/* ——— Buttons ——— */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:var(--btn-h);
  padding:0 20px;
  border-radius:999px;border:1px solid transparent;
  font-size:14px;font-weight:600;cursor:pointer;
  line-height:1;
  white-space:nowrap;
  transition:transform .18s ease, background .18s, border-color .18s, box-shadow .18s, color .18s;
}
.btn:active{transform:scale(.97)}
.btn.pri{
  background:var(--brand);color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.14) inset, 0 2px 8px rgba(9,146,104,.18);
}
.btn.pri:hover{background:var(--brand-deep);box-shadow:0 1px 0 rgba(255,255,255,.16) inset, 0 4px 12px rgba(9,146,104,.22)}
.btn.sec{
  background:rgba(26,24,20,.04);border-color:var(--line-2);color:var(--ink);
}
.btn.sec:hover{background:rgba(26,24,20,.06);border-color:rgba(26,24,20,.16)}
.btn.ghost{background:transparent;color:var(--ink-2);border-color:transparent}
.btn.ghost:hover{color:var(--ink);background:rgba(26,24,20,.05)}
.btn.lg{height:48px;padding:0 24px;font-size:15px}
.btn.sm{height:36px;padding:0 14px;font-size:13px}
.btn.full{width:100%}
.btn.lock-cta{background:var(--brass-soft);color:var(--brass);border-color:rgba(196,165,116,.28)}
.btn:disabled,.btn.is-locked{opacity:.55;cursor:not-allowed}

/* ——— Layout ——— */
.page{max-width:var(--max);margin:0 auto;padding:28px 28px 120px}
.page-narrow{max-width:480px;margin:0 auto;padding:64px 24px 120px}

.hero{
  position:relative;
  padding:40px 0 20px;
  text-align:center;
}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-display);font-size:12px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brass);
  margin-bottom:16px;
}
.hero h1{
  font-size:clamp(30px,4.4vw,48px);font-weight:700;line-height:1.18;
  letter-spacing:-.03em;max-width:16em;margin:0 auto 12px;
}
.hero h1 .em{color:var(--ink);border-bottom:2px solid var(--brass);padding-bottom:2px}
.hero .lede{
  color:var(--ink-2);font-size:15px;max-width:34em;margin:0 auto 22px;line-height:1.7;
}
.hero-acts{
  display:flex;justify-content:center;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:18px;
}

/* Search — storefront first focus */
.search-stage{
  position:relative;max-width:760px;margin:0 auto;
}
.search-box{
  display:flex;align-items:center;gap:14px;
  min-height:60px;
  padding:14px 22px;
  background:linear-gradient(180deg, var(--elev) 0%, var(--surface) 100%);
  border:1px solid var(--line-2);
  border-radius:18px;
  box-shadow:var(--shadow-card), 0 0 0 1px rgba(9,146,104,0);
  transition:border-color .25s, box-shadow .25s;
}
.search-box:focus-within{
  border-color:rgba(9,146,104,.5);
  box-shadow:var(--shadow-card), 0 0 0 4px var(--brand-soft), 0 16px 48px rgba(9,146,104,.1);
}
.search-box svg{flex:none;opacity:.55;width:22px;height:22px}
.search-box input{
  flex:1;background:transparent;border:none;outline:none;
  font-size:17px;color:var(--ink);
}
.search-box input::placeholder{color:var(--muted)}
.search-hint{
  font-family:var(--font-display);font-size:12px;color:var(--faint);
  padding:5px 10px;border:1px solid var(--line);border-radius:8px;flex:none;
}
.search-glow{
  position:absolute;left:8%;right:8%;bottom:-14px;height:36px;
  background:radial-gradient(ellipse at center, var(--brand-glow), transparent 70%);
  opacity:.4;filter:blur(14px);pointer-events:none;z-index:-1;
}

/* Recommend entries — replace empty search as primary navigation */
.entry-stage{
  max-width:720px;margin:0 auto 4px;
}
.entry-stage.left{margin-left:0;max-width:720px}
.entry-label{
  font-size:13px;color:var(--muted);margin-bottom:12px;font-weight:500;
}
.entry-chips{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
}
.entry-stage.left .entry-chips{justify-content:flex-start}
.entry-chip{
  display:inline-flex;align-items:center;
  padding:10px 16px;min-height:40px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line-2);
  color:var(--ink-2);
  font-size:13.5px;font-weight:600;
  box-shadow:0 1px 0 rgba(255,255,255,.8) inset, 0 4px 14px rgba(26,24,20,.04);
  transition:border-color .2s, color .2s, transform .2s, box-shadow .2s, background .2s;
}
.entry-chip:hover{
  border-color:rgba(9,146,104,.35);color:var(--ink);
  transform:translateY(-1px);
  box-shadow:0 1px 0 rgba(255,255,255,.8) inset, 0 8px 20px rgba(9,146,104,.08);
}
.entry-chip.pri{
  background:var(--brand);border-color:var(--brand);color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.25) inset, 0 4px 14px rgba(9,146,104,.22);
}
.entry-chip.pri:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}
.find-quiet{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:16px;padding:10px 14px;
  background:rgba(26,24,20,.02);
  border:1px dashed var(--line-2);border-radius:12px;
  max-width:480px;
}
.find-quiet span{font-size:12px;color:var(--muted);flex:none}
.find-quiet input{
  flex:1;min-width:160px;background:transparent;border:none;outline:none;
  font-size:14px;color:var(--ink);
}
.find-quiet input::placeholder{color:var(--faint)}

@media (max-width:720px){
  .entry-chips{justify-content:flex-start}
  .entry-chip{padding:9px 14px;font-size:13px}
}


/* Sections */
.sec{margin-top:44px}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:16px;
}
.sec-head h2{font-size:20px;font-weight:650;letter-spacing:-.02em}
.sec-head .sub{color:var(--muted);font-size:13px;margin-top:4px}
.sec-head a.more{font-size:13px;color:var(--ink-2);font-weight:600}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.chip{
  padding:7px 14px;border-radius:999px;font-size:13px;
  background:rgba(26,24,20,.03);border:1px solid var(--line);color:var(--ink-2);
  cursor:pointer;transition:background .15s,border-color .15s,color .15s;
}
.chip:hover{border-color:var(--line-2);color:var(--ink)}
.chip.on{background:rgba(26,24,20,.07);border-color:var(--line-2);color:var(--ink);font-weight:600}

/* Cards — shelf tiles */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}

.card{
  position:relative;
  display:flex;flex-direction:column;gap:10px;
  padding:20px;
  background:linear-gradient(180deg, var(--elev) 0%, var(--surface) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  transition:transform .28s cubic-bezier(.22,1,.36,1), border-color .28s, box-shadow .28s;
  overflow:hidden;
  cursor:pointer;
}
.card::after{
  content:"";
  position:absolute;left:12%;right:12%;bottom:-18px;height:36px;
  background:radial-gradient(ellipse at center, var(--brand-glow), transparent 70%);
  opacity:0;filter:blur(10px);transition:opacity .3s;pointer-events:none;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(9,146,104,.28);
  box-shadow:0 1px 0 rgba(255,248,240,.06) inset, 0 16px 40px rgba(26,24,20,.1);
}
.card:hover::after{opacity:.45}
.card .ico{
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(26,24,20,.04);border:1px solid var(--line);
  color:var(--ink-2);
}
.card .ico svg{width:22px;height:22px}
.card .ico.brass{background:var(--brass-soft);border-color:rgba(196,165,116,.25);color:var(--brass)}
.card .ico.brand{background:var(--brand-soft);border-color:rgba(9,146,104,.28);color:#3db892}
.card .ico.neutral{background:rgba(26,24,20,.04);border-color:var(--line);color:var(--ink-2)}
.card h3{font-size:15px;font-weight:650;line-height:1.35;letter-spacing:-.01em}
.card p{font-size:13px;color:var(--muted);line-height:1.55;flex:1}
.card .meta{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  margin-top:4px;padding-top:12px;border-top:1px solid var(--line);
  font-size:12px;color:var(--faint);
}
.card .meta .act{color:var(--ink-2);font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:4px;
  padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;
}
.badge.new{background:var(--brass-soft);color:var(--brass)}
.badge.lock{background:var(--brass-soft);color:var(--lock)}
.badge.ext{background:rgba(26,24,20,.05);color:var(--ink-2)}
.badge.seq{
  font-family:var(--font-display);background:rgba(26,24,20,.05);color:var(--ink-2);
  min-width:28px;justify-content:center;
}

/* Shelf category cards with preview thumbs */
.shelf{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.shelf-card{
  position:relative;
  display:flex;flex-direction:column;
  border-radius:16px;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .28s cubic-bezier(.22,1,.36,1), border-color .28s;
  cursor:pointer;
  text-align:left;
}
.shelf-card:hover{
  transform:translateY(-4px);
  border-color:rgba(9,146,104,.3);
}
.shelf-card .thumb{
  height:88px;position:relative;
  background:linear-gradient(135deg, var(--elev-2), var(--elev));
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.shelf-card .thumb::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 70% 30%, rgba(9,146,104,.22), transparent 45%),
    radial-gradient(circle at 20% 80%, rgba(196,165,116,.12), transparent 40%);
}
.shelf-card .thumb .mark{
  position:absolute;left:16px;bottom:14px;
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(22,20,18,.72);border:1px solid var(--line-2);
  color:var(--ink);backdrop-filter:blur(8px);
}
.shelf-card .thumb .mark svg{width:20px;height:20px}
.shelf-card .thumb.t-tools::before{background:radial-gradient(circle at 70% 30%, rgba(9,146,104,.28), transparent 50%), linear-gradient(135deg,#2a3a32,#221F1B)}
.shelf-card .thumb.t-course::before{background:radial-gradient(circle at 30% 40%, rgba(196,165,116,.22), transparent 50%), linear-gradient(135deg,#3a3228,#221F1B)}
.shelf-card .thumb.t-us::before{background:radial-gradient(circle at 60% 50%, rgba(9,146,104,.18), transparent 45%), linear-gradient(135deg,#243028,#1a221c)}
.shelf-card .thumb.t-model::before{background:radial-gradient(circle at 40% 60%, rgba(80,140,200,.2), transparent 50%), linear-gradient(135deg,#243040,#1c2028)}
.shelf-card .thumb.t-staff::before{background:radial-gradient(circle at 50% 40%, rgba(9,146,104,.2), transparent 50%), linear-gradient(135deg,#2a322c,#221F1B)}
.shelf-card .thumb.t-skill::before{background:radial-gradient(circle at 80% 20%, rgba(196,165,116,.25), transparent 45%), linear-gradient(135deg,#3a3020,#221F1B)}
.shelf-card .thumb.t-flow::before{background:radial-gradient(circle at 20% 30%, rgba(9,146,104,.18), transparent 50%), linear-gradient(135deg,#283230,#221F1B)}
.shelf-card .thumb.t-setup::before{background:radial-gradient(circle at 50% 50%, rgba(26,24,20,.07), transparent 50%), linear-gradient(135deg,#2e2a26,#221F1B)}
.shelf-card .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:4px;flex:1}
.shelf-card .body .kicker{
  font-family:var(--font-display);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--brass);
}
.shelf-card .body h3{font-size:14px;font-weight:650;letter-spacing:-.01em}
.shelf-card .body p{font-size:12px;color:var(--muted);line-height:1.45}
.shelf-card .body .go{
  margin-top:10px;font-size:12px;font-weight:600;color:var(--ink-2);
}

/* Big entry cards */
.entry{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.entry .big{
  position:relative;padding:28px;border-radius:18px;
  background:linear-gradient(145deg, var(--elev-2), var(--surface));
  border:1px solid var(--line);overflow:hidden;
  transition:transform .28s, border-color .28s;
  min-height:160px;
}
.entry .big:hover{transform:translateY(-3px);border-color:rgba(9,146,104,.3)}
.entry .big h3{font-size:22px;font-weight:700;letter-spacing:-.02em;margin:10px 0 8px}
.entry .big p{color:var(--muted);font-size:14px;max-width:28em}
.entry .big .tagline{font-family:var(--font-display);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--brass)}
.entry .big .go{margin-top:18px;display:inline-flex;align-items:center;gap:6px;color:var(--brass);font-weight:600;font-size:14px}
.entry .big .wash{
  position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle, var(--brand-glow), transparent 68%);opacity:.3;pointer-events:none;
}

/* Start path — richer */
.path{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.path .step{
  display:flex;flex-direction:column;gap:10px;
  padding:18px;border-radius:var(--radius);
  background:linear-gradient(180deg, var(--elev) 0%, var(--surface) 100%);
  border:1px solid var(--line);
  transition:border-color .2s, transform .2s;
}
.path .step:hover{border-color:rgba(9,146,104,.25);transform:translateY(-2px)}
.path .n{
  font-family:var(--font-display);font-weight:700;font-size:12px;color:var(--brass);
  letter-spacing:.06em;
}
.path .step .ico{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid rgba(9,146,104,.22);color:#3db892;
}
.path .step .ico svg{width:20px;height:20px}
.path b{display:block;font-size:14px;margin-bottom:2px}
.path span{font-size:12px;color:var(--muted);line-height:1.45}

/* Products */
.product{
  padding:28px;border-radius:18px;background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:14px;
}
.product.featured{
  border-color:rgba(9,146,104,.35);
  background:linear-gradient(180deg, rgba(9,146,104,.1), var(--surface) 40%);
  box-shadow:0 0 0 1px rgba(9,146,104,.1), 0 20px 48px rgba(26,24,20,.08);
}
.product .name{font-size:14px;color:var(--ink-2);font-weight:600}
.product .price{
  font-family:var(--font-display);font-size:36px;font-weight:700;letter-spacing:-.03em;
}
.product .price small{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px}
.product .desc{color:var(--muted);font-size:14px}
.product ul{display:flex;flex-direction:column;gap:8px;margin:4px 0 8px}
.product li{font-size:13.5px;color:var(--ink-2);padding-left:16px;position:relative}
.product li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--brass)}
.types{display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 12px}
.types span{
  padding:6px 12px;border-radius:999px;font-size:12px;
  background:rgba(26,24,20,.04);border:1px solid var(--line);color:var(--ink-2);
}

/* Course list */
.course-list{display:flex;flex-direction:column;gap:10px}
.course{
  display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;
  padding:18px 20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);
  transition:border-color .2s, transform .2s;
}
.course:hover{border-color:rgba(9,146,104,.28);transform:translateX(3px)}
.course .ord{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--font-display);font-weight:700;font-size:14px;
  background:rgba(26,24,20,.05);color:var(--brass);border:1px solid var(--line-2);
}
.course h3{font-size:15px;font-weight:650}
.course p{font-size:13px;color:var(--muted);margin-top:2px}
.course .cta{white-space:nowrap}

/* Login */
.login-card{
  padding:36px 32px;border-radius:20px;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  position:relative;overflow:hidden;
}
.login-card::before{
  content:"";position:absolute;inset:-40% -20% auto;height:180px;
  background:radial-gradient(ellipse at center, rgba(9,146,104,.16), transparent 70%);
  pointer-events:none;
}
.login-card h1{font-size:24px;font-weight:700;letter-spacing:-.02em;margin-bottom:6px;position:relative}
.login-card .lede{color:var(--muted);font-size:14px;margin-bottom:24px;position:relative}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;position:relative}
.field label{font-size:12px;color:var(--muted);font-weight:500}
.field input{
  padding:12px 14px;border-radius:12px;border:1px solid var(--line-2);
  background:rgba(26,24,20,.03);outline:none;transition:border-color .2s, box-shadow .2s;
  height:48px;
}
.field input:focus{
  border-color:rgba(9,146,104,.5);
  box-shadow:0 0 0 4px var(--brand-soft);
}
.divider{
  display:flex;align-items:center;gap:12px;margin:22px 0;color:var(--faint);font-size:12px;
}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}
.hint-box{
  margin-top:18px;padding:14px 16px;border-radius:12px;
  background:rgba(26,24,20,.03);border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);line-height:1.6;
}
.hint-box b{color:var(--ink)}
.check-pop{
  position:absolute;inset:0;display:none;place-items:center;
  background:rgba(250,250,248,.92);border-radius:20px;z-index:5;
}
.check-pop.show{display:grid}
.check-pop .ring{
  width:72px;height:72px;border-radius:50%;
  border:2px solid var(--brand);display:grid;place-items:center;
  box-shadow:0 0 32px var(--brand-glow);
}
.check-pop svg{width:36px;height:36px;color:var(--brand)}

/* Footer */
.site-foot{
  border-top:1px solid var(--line);padding:40px 28px 100px;
  color:var(--muted);font-size:13px;position:relative;z-index:1;
}
.site-foot .inner{max-width:var(--max);margin:0 auto;display:grid;gap:24px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.foot-grid b{display:block;color:var(--ink);margin-bottom:10px;font-size:13px}
.foot-grid a{display:block;padding:4px 0;color:var(--muted)}
.foot-grid a:hover{color:var(--ink-2)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.foot-brand img{width:28px;height:28px;border-radius:7px}
.foot-meta{display:flex;flex-wrap:wrap;gap:12px 20px;padding-top:8px;border-top:1px solid var(--line);color:var(--faint);font-size:12px}
.foot-meta a{color:var(--faint)}

/* Mobile bottom nav */
.bottomnav{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  height:var(--bottom-h);padding:0 8px env(safe-area-inset-bottom);
  background:rgba(250,250,248,.94);backdrop-filter:blur(16px);
  border-top:1px solid var(--line);
  grid-template-columns:repeat(4,1fr);
}
.bottomnav a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:11px;color:var(--muted);padding:8px;
}
.bottomnav a.on{color:var(--ink)}
.bottomnav svg{width:22px;height:22px}

/* Reveal helpers */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .55s ease, transform .55s cubic-bezier(.22,1,.36,1)}

/* Tools page shell with side cats */
.tools-shell{display:grid;grid-template-columns:200px 1fr;gap:28px;align-items:start}
.side-cats{
  position:sticky;top:calc(var(--nav-h) + 16px);
  padding:8px;border-radius:14px;background:var(--surface);border:1px solid var(--line);
}
.side-cats a{
  display:block;padding:10px 12px;border-radius:10px;font-size:13.5px;color:var(--ink-2);
  margin:2px 0;
}
.side-cats a:hover{background:rgba(26,24,20,.04);color:var(--ink)}
.side-cats a.on{background:rgba(26,24,20,.06);color:var(--ink);font-weight:600}
.side-cats .lbl{font-size:11px;color:var(--faint);padding:12px 12px 6px;letter-spacing:.06em}

/* Download feedback toast */
.toast{
  position:fixed;left:50%;bottom:88px;transform:translateX(-50%) translateY(20px);
  background:var(--elev-2);border:1px solid rgba(9,146,104,.35);color:var(--ink);
  padding:12px 18px;border-radius:999px;font-size:13px;font-weight:600;
  box-shadow:0 12px 40px rgba(26,24,20,.12), 0 0 20px rgba(9,146,104,.15);
  opacity:0;pointer-events:none;z-index:80;transition:opacity .25s, transform .25s;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* About strip */
.about-strip{
  margin-top:56px;padding:28px;border-radius:18px;border:1px solid var(--line);
  background:linear-gradient(120deg, rgba(9,146,104,.08), transparent 50%), var(--surface);
  display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center;
}
.about-strip h2{font-size:20px;margin-bottom:8px}
.about-strip p{color:var(--muted);font-size:14px}

@media (max-width:1100px){
  .shelf{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:960px){
  .grid,.grid-4,.path,.entry,.foot-grid,.about-strip,.tools-shell{grid-template-columns:1fr 1fr}
  .shelf{grid-template-columns:1fr 1fr}
  .tools-shell{grid-template-columns:1fr}
  .side-cats{position:static;display:flex;flex-wrap:wrap;gap:4px;padding:8px}
  .side-cats .lbl{display:none}
  .side-cats a{padding:8px 12px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .search-hint{display:none}
  .topnav{padding:0 14px}
  .nav-links{display:none}
  .page{padding:20px 16px 110px}
  .hero{padding:24px 0 12px;text-align:left}
  .hero h1{margin-left:0;font-size:28px}
  .hero .lede{margin-left:0}
  .hero-acts{justify-content:flex-start}
  .search-stage{max-width:none}
  .search-box{min-height:52px;padding:12px 16px}
  .search-box input{font-size:16px}
  .grid,.grid-2,.grid-4,.path,.entry,.foot-grid,.about-strip,.shelf{grid-template-columns:1fr}
  .course{grid-template-columns:40px 1fr;grid-template-rows:auto auto}
  .course .cta{grid-column:2;justify-self:start;margin-top:8px}
  .bottomnav{display:grid}
  .site-foot{padding-bottom:120px}
  .product .price{font-size:30px}
}

/* ——— Tool logos on shelf ——— */
.tool-logo{
  width:44px;height:44px;border-radius:12px;object-fit:cover;
  flex:none;box-shadow:0 1px 0 rgba(255,255,255,.06) inset;
  background:rgba(26,24,20,.04);
}
.tool-logo.lg{width:52px;height:52px;border-radius:14px}
.logo-stack{
  display:flex;align-items:center;gap:0;
}
.logo-stack .tool-logo{
  width:34px;height:34px;border-radius:9px;
  margin-left:-8px;border:2px solid var(--surface);
  box-shadow:none;
}
.logo-stack .tool-logo:first-child{margin-left:0}
.logo-row{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  margin-top:4px;
}
.logo-row .tool-logo{width:36px;height:36px;border-radius:10px}

.shelf-card .thumb .logo-grid{
  position:absolute;inset:12px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px;align-content:center;
}
.shelf-card .thumb .logo-grid img{
  width:100%;aspect-ratio:1;border-radius:10px;object-fit:cover;
  box-shadow:0 4px 12px rgba(0,0,0,.25);
}
.shelf-card .body .logo-stack{margin:6px 0 2px}

.card .logo-head{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.card .logo-head .tool-logo{width:48px;height:48px;border-radius:13px}

.path .step .logo-stack{margin:2px 0 4px}
.path .step .logo-stack .tool-logo{border-color:var(--elev)}

.hero-acts .btn{
  min-width:148px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  box-sizing:border-box;
}
.hero-acts .btn.pri{box-shadow:0 1px 0 rgba(255,255,255,.3) inset, 0 2px 8px rgba(9,146,104,.18);}

/* ——— 10-21 对齐修正：登录/注册 + 已有激活码 ——— */
.hero-acts{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:nowrap}
.hero-acts .btn{display:inline-flex;align-items:center;justify-content:center;text-align:center;
  height:48px;line-height:1;vertical-align:middle;margin:0;transform:none;flex:0 0 168px;width:168px;min-width:0;padding:0 20px;border-width:1px;border-style:solid}
.hero-acts .btn.pri{border-color:transparent}
@media (max-width:720px){
  .hero-acts{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}
  .hero-acts .btn{width:100%;flex:none;padding:0 12px}
}

/* ——— 导航去重（10-21）：首页起步提示 / 货架宽卡 / 工具页唯一分类导航 ——— */
.start-hint{display:inline-block;margin-top:18px;font-size:13px;color:var(--muted);border-bottom:1px dashed var(--line);padding-bottom:2px}
.start-hint:hover{color:var(--ink)}
@media (min-width:1101px){.shelf-card.wide{grid-column:span 2}}
.side-cats a{cursor:pointer}
.cat-list .sec[hidden]{display:none}
@media (max-width:960px){
  .side-cats{position:sticky;top:56px;z-index:20;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;
    background:var(--surface);-webkit-overflow-scrolling:touch;margin:0 -16px 8px;border-radius:0;border-left:0;border-right:0;padding:8px 16px}
  .side-cats::-webkit-scrollbar{display:none}
  .side-cats a{white-space:nowrap;flex:0 0 auto}
}
@media (max-width:960px){.side-cats{-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);mask-image:linear-gradient(90deg,#000 88%,transparent)}}
@media (min-width:721px){.course .cta{align-self:center;margin:0}}
.cat-list[data-filtered] > .sec{margin-top:0}
.card .meta{display:flex;flex-wrap:nowrap;align-items:center;justify-content:space-between;gap:10px}.card .meta .btn{flex:0 0 auto;margin:0}

/* Membership UI uses the existing palette and keeps all public pages browsable. */
[hidden]{display:none!important}
.member-account{display:flex;align-items:center;gap:8px;min-width:0}
.member-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}
.member-logout{border:0;background:transparent;font-size:12px;color:var(--muted);cursor:pointer;padding:8px 2px;flex-shrink:0}
.member-logout:hover{color:var(--brand-deep)}
.member-badge{background:var(--brand-soft);color:var(--brand-deep);padding:6px 12px;white-space:nowrap}
.member-session{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:8px 0 14px}
.member-session .form-status{flex:1 1 100%;margin:0}
.member-session .member-period{flex:1 1 100%;margin:6px 0;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.member-session .btn,.login-card [data-code-form]>.btn{margin-top:0}
.member-dialog{margin:auto;width:min(420px,calc(100% - 32px));max-height:calc(100dvh - 32px);padding:34px 28px 28px;border:1px solid var(--line-2);border-radius:20px;background:var(--surface);color:var(--ink);box-shadow:0 24px 80px rgba(26,24,20,.2);overflow:auto}
.member-dialog::backdrop{background:rgba(26,24,20,.36);backdrop-filter:blur(4px)}
.member-dialog h2{font-size:21px;line-height:1.5;padding-right:12px}
.member-dialog p{font-size:14px;color:var(--muted);margin:16px 0 24px;line-height:1.8}
.dialog-close{position:absolute;right:10px;top:8px;width:36px;height:36px;border:0;border-radius:50%;background:transparent;color:var(--muted);font-size:26px;cursor:pointer}
.dialog-close:hover{background:var(--bg-soft)}
.member-modal-open{overflow:hidden}
.form-status{font-size:13px;color:var(--brand-deep);margin:8px 0 14px;overflow-wrap:anywhere}
.form-status:empty{display:none}
.form-status.is-error{color:#ab3f30}
#code,.course[id]{scroll-margin-top:90px}
[data-self-media-counts]{color:var(--brand-deep)!important}
[data-us-stock]{cursor:pointer}
.shelf-card[data-locked] .go{color:var(--lock)}
:focus-visible{outline:2px solid var(--brand);outline-offset:4px}
.download-started{animation:download-pulse .55s ease;color:var(--brand-deep)!important;background:var(--brand-soft)!important}
@keyframes download-pulse{50%{transform:scale(.95);box-shadow:0 0 0 5px var(--brand-soft)}}
.product>.btn:last-child{margin-top:auto;align-self:stretch}
.tools-shell>*,.grid>*,.grid-2>*,.grid-4>*,.course>*{min-width:0}
.card h3,.card p,.course h3,.course p{overflow-wrap:anywhere}
.card .meta>span:first-child{min-width:0;overflow-wrap:anywhere}
.toast{width:max-content;max-width:calc(100% - 32px);text-align:center;border-radius:18px;overflow-wrap:anywhere}
.model-note{font-size:12px;line-height:1.6}
@media (max-width:960px){
  .nav-links a{padding:8px}
  .topnav{gap:10px}
  .side-cats{width:calc(100% + 32px);max-width:calc(100% + 32px)}
}
@media (max-width:720px){
  .topnav{gap:8px}
  .brand{gap:6px;flex-shrink:0;font-size:14px}
  .nav-acts{gap:6px;min-width:0}
  .nav-acts .btn{padding:0 12px;font-size:12px}
  .nav-acts .member-account{gap:5px}
  .nav-acts .member-name{max-width:70px}
  .member-badge{padding:5px 8px;font-size:11px}
  .page-narrow{padding:32px 16px 80px}
  .login-card{padding:28px 20px}
  .field input{min-width:0;width:100%;font-size:16px}
  .course{padding:18px 16px;gap:12px}
  .course .cta{max-width:100%;min-width:132px}
}

/* Mobile-only shell and home carousel. Inline display:none remains the desktop fallback. */
@media (max-width:899px){
  body.mobile-site{
    --bg:#fff;--bg-soft:#f5f5f7;--elev-2:#f5f5f7;
    --ink:#1d1d1f;--ink-2:#454548;--muted:#6e6e73;--faint:#77777c;
    --line:rgba(29,29,31,.08);--line-2:rgba(29,29,31,.14);
    --brass:#6e6e73;--brass-soft:rgba(29,29,31,.05);--lock:#6e6e73;
    --brand-soft:rgba(29,29,31,.05);--brand-glow:transparent;
    --mobile-top-h:calc(56px + env(safe-area-inset-top,0px));
    --mobile-dock-h:68px;
    --mobile-dock-bottom:calc(12px + env(safe-area-inset-bottom,0px));
    --mobile-membership-h:36px;
    --mobile-membership-space:calc(8px + var(--mobile-membership-h));
    --mobile-controls-h:calc(var(--mobile-dock-bottom) + var(--mobile-dock-h) + var(--mobile-membership-space));
    --mobile-bottom-h:calc(var(--mobile-controls-h) + 8px + 32px);
    --nav-h:var(--mobile-top-h);
    padding-left:0;padding-right:0;
    min-height:100svh;background:#fff;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  }
  .mobile-site::before,.mobile-site::after{display:none}
  .mobile-site .wrap{min-width:0}
  .mobile-site .topnav{
    height:var(--mobile-top-h);padding:env(safe-area-inset-top,0px) 12px 0;
    justify-content:flex-start;background:rgba(255,255,255,.9);border-bottom:0;
  }
  .mobile-site .nav-links,.mobile-site .nav-acts,.mobile-site .bottomnav,
  .mobile-site [data-activation-hint]{display:none!important}
  .mobile-site .brand{gap:8px;font-size:14px}
  .mobile-site .brand img{width:28px;height:28px}
  .mobile-site .page{padding:12px 12px 28px;min-width:0}
  .mobile-site .page-narrow{padding:16px 12px 28px;min-width:0}
  .mobile-site:not(.mobile-home) main{padding-bottom:var(--mobile-bottom-h)}
  .mobile-site .site-foot{padding:24px 12px 28px!important}
  .mobile-site .hero{padding-top:16px}
  .mobile-site .hero h1{font-size:27px;line-height:1.25}
  .mobile-site .hero .eyebrow{margin-bottom:12px;letter-spacing:.06em}
  .mobile-site .hero .lede{font-size:14px}
  .mobile-site .sec{margin-top:28px}
  .mobile-site .sec-head{gap:10px}
  .mobile-site .sec-head h2{font-size:19px}
  .mobile-site .tools-shell{gap:16px}
  .mobile-site .side-cats{
    top:var(--mobile-top-h);width:calc(100% + 24px);max-width:calc(100% + 24px);
    margin:0 -12px 4px;padding:8px 12px;background:rgba(255,255,255,.96);
  }
  .mobile-site .find-quiet{gap:8px;padding:10px 12px}
  .mobile-site .find-quiet input{min-width:0;width:100%;flex-basis:100%;font-size:16px}
  .mobile-site .card,.mobile-site .product{padding:18px;box-shadow:0 2px 10px rgba(29,29,31,.03)}
  .mobile-site .product.featured{background:#fff;border-color:var(--line-2)}
  .mobile-site .product .btn{white-space:normal;line-height:1.4;padding:8px 12px;height:auto;min-height:48px}
  .mobile-site .course{grid-template-columns:30px minmax(0,1fr);padding:16px 12px;gap:10px}
  .mobile-site .course .ord{width:30px;height:30px;border-radius:9px}
  .mobile-site .course .cta{grid-column:2;justify-self:start;margin-top:8px;min-width:0;width:100%;padding:0 12px}
  .mobile-site .login-card{padding:24px 16px;box-shadow:none}
  .mobile-site .login-card::before,.mobile-site .card::after{display:none}
  .mobile-site .card .meta{flex-wrap:wrap}
  .mobile-site .card .ico.brand,.mobile-site .member-badge{color:var(--ink-2);border-color:var(--line)}
  .mobile-site .card:hover,.mobile-site .course:hover{border-color:var(--line-2);transform:none}
  .mobile-site .form-status:not(.is-error),.mobile-site [data-self-media-counts]{color:var(--muted)!important}
  .mobile-site :focus-visible{outline-color:var(--ink)}
  .mobile-site .field input:focus,.mobile-site .search-box:focus-within{border-color:var(--ink-2);box-shadow:0 0 0 3px var(--bg-soft)}
  .mobile-site .toast{
    left:50%;max-width:calc(100% - 24px);
    bottom:var(--mobile-bottom-h);border-color:var(--line-2);box-shadow:0 8px 24px rgba(29,29,31,.1);
  }

  .mobile-dock{
    display:flex!important;position:fixed;left:50%;bottom:var(--mobile-dock-bottom);transform:translateX(-50%);
    z-index:60;width:calc(100% - 24px);height:var(--mobile-dock-h);padding:6px;gap:4px;
    border:1px solid rgba(29,29,31,.1);border-radius:999px;background:rgba(255,255,255,.78);
    -webkit-backdrop-filter:blur(20px) saturate(1.3);backdrop-filter:blur(20px) saturate(1.3);
    box-shadow:0 6px 24px rgba(29,29,31,.08),0 1px 2px rgba(29,29,31,.04);
  }
  .mobile-dock a{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
    min-width:0;height:100%;flex:1;border-radius:999px;color:var(--muted);
    font-size:11px;line-height:1.2;font-weight:500;-webkit-tap-highlight-color:transparent;
  }
  .mobile-dock svg{width:21px;height:21px;flex:none}
  .mobile-dock a.is-current{background:var(--ink);color:#fff}
  .mobile-dock a:focus-visible{outline-offset:1px}
  .mobile-membership{
    display:flex!important;align-items:center;justify-content:center;position:fixed;z-index:65;
    left:50%;transform:translateX(-50%);
    bottom:calc(var(--mobile-dock-bottom) + var(--mobile-dock-h) + 8px);
    width:max-content;max-width:calc(100% - 24px);height:var(--mobile-membership-h);padding:0 6px;
    border:1px solid rgba(255,255,255,.2);border-radius:999px;
    background:var(--brand);color:#fff;box-shadow:0 4px 16px rgba(9,146,104,.18);
  }
  .mobile-membership a{display:flex;align-items:center;justify-content:center;height:100%;padding:0 12px;font-size:13px;font-weight:600;white-space:nowrap;border-radius:999px}
  .mobile-membership>span{opacity:.7}
  .mobile-membership a:focus-visible{outline-color:#fff;outline-offset:-4px}
  body.mobile-site:is(.member-active,.mobile-login,.lesson-locked){--mobile-membership-space:0px}
  body:is(.member-active,.mobile-login,.lesson-locked) .mobile-membership{display:none!important}

  /* The viewport budget includes safe areas, dots and the persistent capsule. */
  html:has(body.mobile-home){height:100%;overflow:hidden;overscroll-behavior-y:none}
  body.mobile-home{height:100svh;min-height:0;overflow:hidden;overscroll-behavior-y:none}
  .mobile-home .wrap{height:100%}
  .mobile-home .page{height:calc(100% - var(--mobile-top-h));max-width:none;padding:0}
  .mobile-home .page>:not(.mobile-home-carousel),.mobile-home .site-foot,
  .mobile-home [data-hero-login],.mobile-home [data-hero-code]{display:none!important}
  .mobile-home-carousel{
    display:block!important;position:relative;width:100%;
    height:calc(100svh - var(--mobile-top-h) - var(--mobile-bottom-h));
  }
  .mobile-slides{
    display:flex;width:100%;height:100%;overflow-x:auto;overflow-y:hidden;
    scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .mobile-slides::-webkit-scrollbar{display:none}
  .mobile-slides:focus-visible{outline-offset:-3px;border-radius:24px}
  .mobile-slide{
    flex:0 0 100%;width:100%;min-width:0;height:100%;padding:8px 12px;
    scroll-snap-align:start;scroll-snap-stop:always;
  }
  .mobile-panel{
    display:flex;flex-direction:column;gap:12px;width:100%;height:100%;min-height:0;
    padding:18px;border:1px solid var(--line);border-radius:26px;background:#fff;
    overflow-y:auto;overscroll-behavior-y:contain;
    box-shadow:0 3px 12px rgba(29,29,31,.025);
  }
  .mobile-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:10px;line-height:1.4;color:var(--muted)}
  .mobile-card-top>span:last-child{flex:none;font-variant-numeric:tabular-nums;letter-spacing:.04em}
  .mobile-panel h1{font-size:clamp(28px,8.2vw,36px);line-height:1.22;letter-spacing:-.04em;font-weight:700}
  .mobile-panel h2{font-size:27px;line-height:1.2;letter-spacing:-.035em;margin-top:8px}
  .mobile-lede{font-size:13px;line-height:1.65;color:var(--muted)}
  .mobile-intro-copy{display:flex;flex-direction:column;gap:24px;margin:auto 0}
  .mobile-hero-logo{width:68px;height:68px;border-radius:18px}
  .mobile-intro-copy .mobile-lede{font-size:15px;line-height:1.7;max-width:19em}
  .mobile-next{
    display:flex;align-items:center;justify-content:space-between;gap:12px;flex:none;
    width:100%;min-height:46px;margin-top:auto;padding:12px 0 0;
    border:0;border-top:1px solid var(--line);background:none;
    color:var(--ink);font-size:13px;font-weight:600;cursor:pointer;text-align:left;
  }
  .mobile-steps{display:flex;flex-direction:column;gap:10px;list-style:none;margin-top:4px}
  .mobile-steps a{display:block;padding:14px 12px;border:1px solid var(--line);border-radius:17px;background:var(--bg-soft)}
  .mobile-step-top{display:flex;align-items:center;justify-content:space-between;gap:6px;margin-bottom:8px}
  .mobile-step-top>span{font-size:11px;color:var(--muted);white-space:nowrap}
  .mobile-step-top .tool-logo{width:28px;height:28px;border-radius:8px;margin-left:-6px}
  .mobile-step-top .tool-logo:first-child{margin-left:0}
  .mobile-steps h3,.mobile-updates h3{font-size:14px;line-height:1.4;font-weight:600}
  .mobile-steps p{margin-top:4px;font-size:12px;line-height:1.5;color:var(--muted)}
  .mobile-shelf{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:4px}
  .mobile-shelf a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;min-height:100px;padding:12px 4px;border:1px solid var(--line);border-radius:18px;background:var(--bg-soft)}
  .mobile-shelf img{width:42px;height:42px;border-radius:12px;object-fit:cover}
  .mobile-shelf span{font-size:12px;line-height:1.4;font-weight:500;text-align:center}
  .mobile-updates{display:flex;flex-direction:column;gap:10px}
  .mobile-updates>a{display:block;padding:10px;border:1px solid var(--line);border-radius:17px}
  .mobile-update-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:5px}
  .mobile-update-top img{width:26px;height:26px;border-radius:8px;object-fit:cover}
  .mobile-update-top time{font-size:11px;color:var(--muted);font-variant-numeric:tabular-nums}
  .mobile-updates p{margin-top:5px;font-size:12px;line-height:1.55;color:var(--muted);overflow-wrap:anywhere}
  .mobile-member-copy{display:flex;flex-direction:column;gap:22px;margin:auto 0}
  .mobile-member-copy h2{margin:0}
  .mobile-price{display:flex;align-items:baseline;gap:4px;font-family:var(--font-display);font-size:68px;font-weight:700;line-height:1;letter-spacing:-.05em}
  .mobile-price>span{font-size:28px;letter-spacing:0}
  .mobile-price small{font-family:var(--font-body);font-size:13px;font-weight:400;color:var(--muted);margin-left:6px;letter-spacing:0}
  .mobile-member-note{font-size:13px;line-height:1.8;color:var(--muted)}
  .mobile-member-copy .btn{height:48px}
  .mobile-icp{align-self:center;flex:none;font-size:10px;line-height:1.5;color:var(--muted);white-space:nowrap}
  .mobile-dots{position:absolute;top:100%;left:0;right:0;display:flex;align-items:center;justify-content:center;height:32px;gap:2px}
  .mobile-dots button{display:grid;place-items:center;width:30px;height:30px;border:0;border-radius:50%;background:none;cursor:pointer}
  .mobile-dots button::before{content:"";width:5px;height:5px;border-radius:50%;background:#d2d2d7}
  .mobile-dots button[aria-current="true"]::before{width:7px;height:7px;background:var(--ink)}

  /* Keep content reachable on short screens. */
  @media (max-height:700px){
    .mobile-panel{gap:10px;padding:14px}
    .mobile-intro-copy,.mobile-member-copy{gap:14px}
    .mobile-hero-logo{width:48px;height:48px;border-radius:13px}
    .mobile-panel h2{margin-top:4px;font-size:24px}
    .mobile-steps a{padding:10px}
    .mobile-shelf a{min-height:80px;padding:10px 4px;gap:6px}
    .mobile-shelf img{width:32px;height:32px}
  }
}
@media (max-width:899px){.mobile-steps li.is-text>div{display:block;padding:6px 12px 0;border:0;background:none}}

/* 单课播放 */
.lesson-page{padding-top:28px}
.lesson-back{display:inline-block;color:var(--muted);font-size:13px;margin-bottom:24px}
.lesson-back:hover{color:var(--brand-deep)}
.lesson-heading{margin-bottom:24px}
.lesson-heading .eyebrow{margin-bottom:8px}
.lesson-heading h1{font-size:28px;line-height:1.35;overflow-wrap:anywhere}
.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:24px;align-items:start}
.lesson-layout>*{min-width:0}
.lesson-player{overflow:hidden;border:1px solid var(--line-2);border-radius:18px;background:var(--surface)}
.lesson-player video{display:block;width:100%;aspect-ratio:16/9;background:#111;object-fit:contain}
.lesson-message{min-height:340px;aspect-ratio:16/9;padding:36px 28px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;text-align:center;background:linear-gradient(140deg,var(--brand-soft),var(--surface) 65%)}
.lesson-message h2{font-size:24px;line-height:1.4}
.lesson-message p{max-width:32em;font-size:14px;color:var(--muted);overflow-wrap:anywhere}
.lesson-message .btn{margin:0;flex:none}
.lesson-current-title{margin-top:20px;font-size:20px;line-height:1.55;overflow-wrap:anywhere}
.lesson-resources{margin-top:24px;border-top:1px solid var(--line);padding-top:18px}
.lesson-resources h3{font-size:15px;margin-bottom:12px}
.lesson-attachment{display:block;padding:12px 14px;margin-bottom:8px;border:1px solid var(--line);border-radius:10px;font-size:13px;overflow-wrap:anywhere;background:var(--surface)}
.lesson-attachment:hover{border-color:var(--brand);color:var(--brand-deep)}
.lesson-sidebar{position:sticky;top:calc(var(--nav-h) + 24px);border:1px solid var(--line);border-radius:16px;background:var(--surface);overflow:hidden}
.lesson-list-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px;border-bottom:1px solid var(--line)}
.lesson-list-heading h2{font-size:17px}
.lesson-list-heading span{font-size:12px;color:var(--muted)}
.lesson-list{list-style:none;max-height:calc(100dvh - var(--nav-h) - 140px);overflow-y:auto;padding:8px}
.lesson-link{display:grid;grid-template-columns:28px minmax(0,1fr);gap:4px 8px;padding:12px 10px;border-radius:10px;font-size:13px;overflow-wrap:anywhere}
.lesson-number{grid-row:span 2;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}
.lesson-link small{grid-column:2;color:var(--muted);font-size:11px}
.lesson-link:hover{background:var(--bg-soft)}
.lesson-link.is-current{background:var(--brand-soft);color:var(--brand-deep);font-weight:600}
.lesson-text{padding:28px;font-size:14px;line-height:1.9;overflow-wrap:anywhere}
.lesson-text h3{font-size:18px;line-height:1.6;margin:24px 0 12px}
.lesson-text h3:first-child{margin-top:0}
.lesson-text h4{font-size:14px;margin:18px 0 8px;color:var(--brand-deep)}
.lesson-text p{margin:8px 0}
.lesson-text ul{list-style:disc;padding-left:20px}
.lesson-text li{margin:8px 0}
@media (max-width:899px){
  .lesson-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .lesson-sidebar{position:static}
  .lesson-list{max-height:none}
  .lesson-message{min-height:230px;padding:28px 20px;aspect-ratio:auto}
  .lesson-message h2{font-size:21px}
}
@media (max-width:899px){
  .mobile-site .lesson-page{padding-top:16px}
  .lesson-back{margin-bottom:16px}
  .lesson-heading h1{font-size:24px}
  .lesson-player{border-radius:14px}
  .lesson-current-title{font-size:18px}
  .lesson-text{padding:20px 16px}
}

/* ——— 联系微信二维码 ——— */
.contact-qr-card{
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-top:18px;padding:18px 20px;border-radius:18px;
  background:rgba(26,24,20,.03);border:1px solid var(--line);
}
.contact-qr-card img{
  width:132px;height:132px;border-radius:14px;object-fit:cover;
  background:#fff;border:1px solid rgba(26,24,20,.08);flex-shrink:0;
}
.contact-qr-card .cq-copy{flex:1;min-width:180px}
.contact-qr-card .cq-kicker{font-size:12px;font-weight:650;color:var(--muted);letter-spacing:.04em;margin-bottom:6px}
.contact-qr-card h3{font-size:17px;font-weight:650;letter-spacing:-.02em;margin:0 0 6px}
.contact-qr-card p{margin:0;font-size:13.5px;line-height:1.6;color:var(--ink-2)}
.contact-qr-card .cq-steps{margin:10px 0 0;padding:0;list-style:none;display:grid;gap:4px}
.contact-qr-card .cq-steps li{font-size:12.5px;color:var(--muted)}
.contact-qr-inline{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:8px}
.contact-qr-inline img{width:148px;height:148px;border-radius:16px;object-fit:cover;background:#fff;border:1px solid rgba(26,24,20,.08)}
.contact-qr-inline p{margin:0;text-align:center;font-size:12.5px;line-height:1.55;color:var(--muted)}
.product .contact-qr-card{margin-top:16px}
@media (max-width:899px){
  .contact-qr-card{padding:14px;gap:14px}
  .contact-qr-card img{width:112px;height:112px}
  .mobile-member .contact-qr-inline{margin-top:4px}
  .mobile-member .contact-qr-inline img{width:120px;height:120px}
}
/* ——— 分享（顶栏右上）+ 返回（主内容区大标题上方，nav-actions.js） ——— */
.nav-share{
  gap:6px;height:32px;padding:0 12px;font-size:13px;font-weight:600;
  color:var(--ink-2);background:rgba(26,24,20,.04);border:1px solid transparent;border-radius:999px;
  flex-shrink:0;
}
.nav-share:hover{color:var(--ink);background:rgba(26,24,20,.07)}
.nav-share .nav-action-ico{
  width:14px;height:14px;display:inline-block;position:relative;
}
.nav-share .nav-action-ico::before{
  content:"";position:absolute;left:3px;top:1px;width:8px;height:8px;
  border:1.7px solid currentColor;border-radius:50% 50% 50% 0;transform:rotate(-45deg);
}
.nav-share .nav-action-ico::after{
  content:"";position:absolute;left:6px;bottom:1px;width:1.7px;height:7px;
  background:currentColor;border-radius:1px;
}
.nav-acts .nav-share{order:-1}
.nav-share-mobile{display:none;margin-left:auto}

/* 返回：主内容左上、大标题上方，左对齐内容边距 */
.page-back-row{
  display:flex;align-items:center;justify-content:flex-start;
  margin:0 0 10px;padding:0;min-height:28px;
}
.hero > .page-back-row{margin:0 0 12px;padding:0}
.hero[data-hero] > .page-back-row{margin-bottom:8px}
.nav-back.page-back{
  display:inline-flex;align-items:center;gap:6px;
  height:auto;min-height:28px;padding:4px 2px;
  font-size:14px;font-weight:600;letter-spacing:-.01em;
  color:var(--ink-2);background:transparent;border:none;border-radius:8px;
  box-shadow:none;cursor:pointer;
}
.nav-back.page-back:hover{color:var(--ink);background:rgba(26,24,20,.05)}
.nav-back.page-back .nav-action-ico{
  width:14px;height:14px;display:inline-block;position:relative;flex-shrink:0;
}
.nav-back.page-back .nav-action-ico::before{
  content:"";position:absolute;inset:2px 3px 2px 1px;
  border-left:1.7px solid currentColor;border-bottom:1.7px solid currentColor;
  transform:rotate(45deg);border-radius:1px;
}
.nav-back.page-back.is-home{opacity:.65}
.nav-action-toast{
  position:fixed;left:50%;bottom:28px;z-index:120;
  transform:translateX(-50%) translateY(12px);
  padding:10px 16px;border-radius:16px;
  background:rgba(26,24,20,.88);color:#fff;font-size:13px;font-weight:600;
  opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;
  max-width:calc(100% - 32px);text-align:center;
}
.nav-action-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media (max-width:899px){
  .page-back-row{margin:0 0 6px}
  .nav-back.page-back{font-size:13px;min-height:26px;padding:2px 0}
  .mobile-site .nav-acts .nav-share{display:none!important}
  .mobile-site .nav-share-mobile{
    display:inline-flex!important;margin-left:auto;height:30px;padding:0 10px;font-size:12px;
    background:rgba(29,29,31,.05);gap:6px;font-weight:600;color:var(--ink-2);
    border:1px solid transparent;border-radius:999px;
  }
  .mobile-site .nav-action-toast{bottom:calc(var(--mobile-controls-h,80px) + 12px)}
}
@media (min-width:900px){
  .nav-share-mobile{display:none!important}
}

/* ——— 精选任务说明卡（curated-skills） ——— */
.curated-block{margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.curated-block .sec-head{margin-bottom:12px}
.curated-block .sec-head h3{font-size:17px;font-weight:650;letter-spacing:-.02em}
.curated-note{
  font-size:13px;color:var(--muted);line-height:1.55;margin:0 0 14px;
  padding:10px 14px;border-radius:12px;background:rgba(26,24,20,.035);border:1px solid var(--line);
}
.curated-card{gap:8px}
.curated-card .curated-kicker{
  font-size:11px;letter-spacing:.04em;text-transform:none;color:var(--muted);font-weight:600;
}
.curated-card h3{font-size:15px}
.curated-card .curated-purpose{margin:0;font-size:13px;color:var(--ink-2);line-height:1.55}
.curated-meta{margin:0;display:grid;gap:8px}
.curated-meta > div{display:grid;gap:2px}
.curated-meta dt{
  font-size:11px;font-weight:650;color:var(--muted);letter-spacing:.02em;
}
.curated-meta dd{margin:0;font-size:12.5px;color:var(--ink-2);line-height:1.5}
.curated-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.curated-tag{
  font-size:11px;padding:3px 9px;border-radius:999px;
  background:rgba(9,146,104,.08);color:#0f7a58;border:1px solid rgba(9,146,104,.18);
}
.curated-card.is-focus{
  border-color:rgba(9,146,104,.45);
  box-shadow:0 0 0 3px rgba(9,146,104,.12), var(--shadow-card);
}
.curated-empty{font-size:13px;color:var(--muted);padding:8px 2px}
.page-curated .hero{padding-bottom:8px}