/* ============================================================
   Accio Super Individual · 外贸 AI 超级个体
   Design system v2 · Business modern · Blue-primary + Orange-accent
   Fully responsive: desktop / tablet / mobile
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  /* — Brand: deep navy + indigo (tech, primary) — */
  --navy-900:  #0a0e27;      /* hero deepest */
  --navy-800:  #101a3f;
  --navy-700:  #152a63;      /* brand core */
  --navy-600:  #1c3a7a;
  --indigo-600:#4f46e5;
  --indigo-500:#6366f1;      /* accent glow */
  --indigo-400:#818cf8;
  --blue-accent:#3b6fe0;

  --blue-50:   #eef2ff;
  --blue-100:  #e0e7ff;
  --blue-300:  #a5b4fc;
  --blue-500:  #3b6fe0;      /* primary */
  --blue-600:  #152a63;
  --blue-700:  #101f4d;
  --blue-800:  #0a0e27;

  /* — Accent: warm orange (action, highlight) — */
  --orange-50:  #fff2ea;
  --orange-100: #ffe1cf;
  --orange-400: #ff9457;
  --orange-500: #ee6a2b;     /* accent */
  --orange-600: #d5561d;
  --orange-700: #b84a15;

  /* — Neutral · cool gray (business tone) — */
  --gray-0:    #ffffff;
  --gray-50:   #f7f8fb;      /* page bg */
  --gray-100:  #f1f2f6;      /* muted panel */
  --gray-200:  #e4e4e7;      /* border */
  --gray-300:  #c9cad2;
  --gray-500:  #86868b;
  --gray-600:  #6e6e73;
  --gray-700:  #48484d;
  --gray-800:  #2c2c30;
  --gray-900:  #1d1d1f;

  /* semantic tokens */
  --bg:            var(--gray-50);
  --surface:       var(--gray-0);
  --surface-2:     var(--gray-100);
  --border:        var(--gray-200);
  --border-soft:   #e6ebf2;
  --text:          var(--gray-900);
  --text-2:        var(--gray-600);
  --text-3:        var(--gray-500);

  --brand:         var(--blue-600);
  --brand-2:       var(--blue-500);
  --brand-soft:    var(--blue-50);
  --brand-ink:     var(--blue-800);

  --accent:        var(--indigo-500);
  --accent-soft:   var(--blue-50);
  --accent-ink:    var(--indigo-600);
  /* warm tokens kept for tags / highlights only */
  --warm:          var(--orange-500);
  --warm-soft:     var(--orange-50);
  --warm-ink:      var(--orange-700);

  --code-bg:       #0f172a;
  --code-text:     #e2e8f0;

  --shadow-sm:     0 1px 2px rgba(10,14,39,.04), 0 1px 3px rgba(10,14,39,.05);
  --shadow-md:     0 8px 24px rgba(10,14,39,.07);
  --shadow-lg:     0 24px 60px rgba(10,14,39,.14);
  --shadow-brand:  0 8px 32px rgba(99,102,241,.25);
  --shadow-accent: 0 10px 24px rgba(99,102,241,.28);

  /* — Signature gradients (maigc-inspired) — */
  --grad-hero:     linear-gradient(135deg, #0a0e27 0%, #152a63 100%);
  --grad-brand:    linear-gradient(135deg, #818cf8 0%, #6366f1 35%, #3b6fe0 70%, #10b981 100%);
  --grad-indigo:   linear-gradient(135deg, #6366f1, #3b6fe0);
  --grad-warm:     linear-gradient(135deg, #f59e0b, #ef4444);

  --radius:        18px;
  --radius-sm:     10px;
  --radius-lg:     24px;
  --tr:            .18s ease;
  --tr-slow:       .28s ease;

  font-synthesis-weight: none;
}

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI",
               "Helvetica Neue", Arial, sans-serif;
  font-size: 15px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }
input, textarea, select, button { font-size: inherit; }

/* Visually hidden but crawler/screen-reader accessible (SEO pre-render + a11y) */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ---------- Navbar (desktop) ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(1.8) blur(20px);
  -webkit-backdrop-filter: saturate(1.8) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
}
.nav-inner {
  max-width: 1220px; margin: 0 auto;
  padding: 11px 28px;
  display: flex; align-items: center; gap: 20px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 500; letter-spacing: .2px;
}
.brand-mark {
  width: 34px; height: 34px;
  object-fit: contain;
  display: block; flex: 0 0 auto;
  filter: drop-shadow(0 2px 6px rgba(21,42,99,.22));
  transition: transform var(--tr);
}
.brand:hover .brand-mark { transform: scale(1.06) rotate(-4deg); }
.brand-text { font-size: 15.5px; font-weight: 700; letter-spacing: -.2px; color: var(--gray-900); }
.brand-text small { display: block; font-size: 10.5px; color: var(--text-3); font-weight: 400; margin-top: 0; letter-spacing: .4px; }

.nav-links { display: flex; gap: 2px; margin-left: 26px; }
.nav-links a {
  padding: 7px 13px; border-radius: 8px;
  color: var(--gray-900); font-size: 14px;
  transition: color var(--tr), background var(--tr);
}
.nav-links a:hover { color: var(--navy-700); background: rgba(21,42,99,.05); }
.nav-links a.active {
  color: var(--navy-700); background: rgba(21,42,99,.07);
  font-weight: 600;
}

.nav-meta {
  margin-left: auto;
  display: flex; align-items: center; gap: 10px;
  color: var(--text-3); font-size: 12.5px;
}
.nav-meta .divider { display: none; }
.nav-meta .wx {
  display: inline-flex; align-items: center; gap: 6px;
  color: #fff; background: var(--navy-700);
  padding: 7px 18px; border-radius: 20px; font-weight: 500;
  font-size: 12.5px; border: none;
  box-shadow: 0 4px 12px rgba(21,42,99,.18);
  transition: transform var(--tr), box-shadow var(--tr);
  cursor: pointer;
}
.nav-meta .wx:hover { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(21,42,99,.3); }

/* ---------- Mobile bottom nav ---------- */
.mnav {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-soft);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
}
.mnav-inner {
  display: grid; grid-template-columns: repeat(5, 1fr);
  max-width: 520px; margin: 0 auto;
}
.mnav a {
  display: flex; flex-direction: column; align-items: center;
  gap: 3px; padding: 6px 4px; border-radius: 8px;
  color: var(--text-3); font-size: 11px; letter-spacing: .3px;
  transition: color var(--tr), background var(--tr);
}
.mnav a svg { width: 20px; height: 20px; }
.mnav a.active { color: var(--brand); }
.mnav a.active svg { color: var(--brand); }

/* ---------- Layout ---------- */
.wrap { max-width: 1220px; margin: 0 auto; padding: 32px 28px 80px; }
.page { display: none; }
.page.active { display: block; }
/* Home starts flush with the nav so the dark hero touches it */
.page[data-page="home"] { padding-top: 0; }

.section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 22px; flex-wrap: wrap;
}
.section-head h2 {
  margin: 0; font-size: 34px; letter-spacing: -1px; font-weight: 700;
  position: relative; color: var(--gray-900); line-height: 1.2;
}
.section-head p  { margin: 10px 0 0; color: var(--text-3); font-size: 15px; }

/* Uppercase spaced eyebrow above section titles */
.eyebrow {
  display: block; font-size: 12px; font-weight: 600;
  letter-spacing: 3px; text-transform: uppercase;
  color: var(--blue-accent); margin-bottom: 10px;
}

/* ---------- Hero · dark tech (full-bleed) ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--grad-hero);
  border: none;
  border-radius: 0;
  padding: 118px 32px 108px;
  margin: 0 calc(50% - 50vw) 0;   /* break out of .wrap to full width */
  width: 100vw;
  text-align: center;
  box-shadow: none;
  color: #fff;
}
/* Layer 1 — twin indigo radial blooms */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(800px 600px at 20% 30%, rgba(99,102,241,.40), transparent 70%),
    radial-gradient(600px 500px at 80% 20%, rgba(99,102,241,.30), transparent 70%),
    radial-gradient(700px 500px at 60% 110%, rgba(59,111,224,.22), transparent 70%);
}
/* Layer 2 — faint 1px grid mesh */
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 40%, transparent 100%);
}
.hero > * { position: relative; z-index: 1; }
.hero-inner { max-width: 900px; margin: 0 auto; position: relative; z-index: 1; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  padding: 8px 18px; border-radius: 999px;
  font-size: 13px; color: rgba(255,255,255,.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.hero-eyebrow .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 0 4px rgba(52,211,153,.18);
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(52,211,153,.16); }
  50%      { box-shadow: 0 0 0 9px rgba(52,211,153,.03); }
}
.hero h1 {
  margin: 30px auto 24px; font-size: 76px; line-height: 1.08;
  letter-spacing: -2.5px; font-weight: 700; color: #fff;
  max-width: 900px;
}
.hero h1 .accent {
  background: var(--grad-brand);
  background-size: 200% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  animation: gradShift 8s ease infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% center; }
  50%      { background-position: 100% center; }
}
.hero p.lead {
  margin: 0 auto; font-size: 20px; color: rgba(255,255,255,.68);
  max-width: 640px; line-height: 1.7;
}
/* Pill tag row under the lead */
.hero-tags {
  margin-top: 26px; display: flex; gap: 10px;
  flex-wrap: wrap; justify-content: center;
}
.hero-tags span {
  padding: 6px 16px; border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.13);
  font-size: 12.5px; color: rgba(255,255,255,.72);
}
.hero-cta {
  margin-top: 40px; display: flex; gap: 14px;
  flex-wrap: wrap; justify-content: center;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 36px; border-radius: 980px;
  font-size: 16px; font-weight: 600;
  border: 1px solid transparent; background: #fff;
  transition: transform var(--tr), box-shadow var(--tr-slow), background var(--tr), color var(--tr), border-color var(--tr);
  min-height: 52px; letter-spacing: 0;
}
.btn:hover { transform: translateY(-2px); }
/* Hero primary = white capsule w/ indigo glow */
.btn-primary {
  background: #fff; color: var(--navy-700);
  box-shadow: 0 8px 32px rgba(99,102,241,.25);
}
.btn-primary:hover {
  color: var(--navy-700);
  box-shadow: 0 14px 44px rgba(99,102,241,.42);
}
.btn-accent {
  background: var(--grad-indigo); color: #fff;
  box-shadow: 0 8px 28px rgba(99,102,241,.34);
}
.btn-accent:hover { box-shadow: 0 14px 40px rgba(99,102,241,.5); color: #fff; }
/* Ghost inside dark hero */
.hero .btn-ghost {
  background: rgba(255,255,255,.07); color: rgba(255,255,255,.86);
  border-color: rgba(255,255,255,.18); box-shadow: none;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.hero .btn-ghost:hover {
  background: rgba(255,255,255,.13); color: #fff;
  border-color: rgba(255,255,255,.3);
}
/* Ghost on light background (rest of the site) */
.btn-ghost {
  border-color: var(--border); color: var(--gray-900); background: #fff;
  box-shadow: 0 1px 2px rgba(10,14,39,.04);
}
.btn-ghost:hover {
  border-color: var(--navy-700); color: var(--navy-700);
  background: #fff;
}

/* ---------- Stats · clean white band ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0; margin: 0 calc(50% - 50vw) 0; width: 100vw;
  background: #fff;
  border-bottom: 1px solid var(--border-soft);
  padding: 52px 32px;
}
.stat {
  background: transparent; border: none;
  border-radius: 0; padding: 0 20px;
  text-align: center;
  transition: transform var(--tr);
  position: relative;
}
.stat:hover { transform: translateY(-3px); }
.stat .num {
  font-size: 46px; font-weight: 700; letter-spacing: -2px;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  background: var(--grad-indigo);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat:nth-child(2) .num { background: linear-gradient(135deg, var(--navy-700), var(--blue-accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat:nth-child(3) .num { background: linear-gradient(135deg, var(--indigo-400), var(--indigo-600)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat:nth-child(4) .num { background: linear-gradient(135deg, var(--blue-accent), #10b981); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.stat .lab { color: var(--text-3); font-size: 13.5px; margin-top: 8px; font-weight: 400; }
/* ---------- Entry cards · minimal flat ---------- */
.entries {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; margin-top: 40px;
}
.entry-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 20px; padding: 32px 28px 28px;
  cursor: pointer;
  transition: transform var(--tr-slow), box-shadow var(--tr-slow), border-color var(--tr);
  position: relative; overflow: hidden;
}
/* Corner colour bloom, revealed on hover */
.entry-card::before {
  content: ""; position: absolute; top: -40px; right: -40px;
  width: 180px; height: 180px; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(99,102,241,.13), transparent 70%);
  opacity: 0; transition: opacity var(--tr-slow);
}
.entry-card:hover::before { opacity: 1; }
.entry-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px -20px rgba(10,14,39,.22);
  border-color: var(--indigo-400);
}
.entry-card .ico {
  width: 48px; height: 48px; border-radius: 13px;
  background: var(--ico-soft, var(--blue-50));
  color: var(--ico-hue, var(--navy-700));
  display: grid; place-items: center; margin-bottom: 20px;
  transition: transform var(--tr-slow), background var(--tr-slow), color var(--tr-slow), box-shadow var(--tr-slow);
  position: relative; z-index: 1;
}
.entry-card .ico svg { width: 22px; height: 22px; }
.entry-card:hover .ico {
  background: var(--ico-hue, var(--navy-700));
  color: #fff;
  transform: scale(1.06) rotate(-4deg);
  box-shadow: 0 10px 22px rgba(10,14,39,.25);
}
.entry-card h3 {
  margin: 0 0 8px; font-size: 17px; font-weight: 600;
  color: var(--gray-900); position: relative; z-index: 1;
  letter-spacing: -.2px;
}
.entry-card p {
  margin: 0; color: var(--text-3); font-size: 13.5px; line-height: 1.7;
  position: relative; z-index: 1;
}
.entry-card .arrow {
  margin-top: 18px; color: var(--blue-accent); font-size: 13.5px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 4px;
  transition: gap var(--tr), color var(--tr);
  position: relative; z-index: 1;
}
.entry-card:hover .arrow { gap: 9px; color: var(--indigo-600); }

/* ---------- Toolbar / Search / Chips ---------- */
.toolbar {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  padding: 12px; background: #fff; border: 1px solid var(--gray-200);
  border-radius: 18px; margin-bottom: 20px;
  box-shadow: none;
}
.search { flex: 1; min-width: 240px; position: relative; }
.search input {
  width: 100%; padding: 11px 14px 11px 40px;
  background: var(--surface-2); border: 1px solid transparent;
  border-radius: 10px; font-size: 14px; color: var(--text);
  transition: background var(--tr), border-color var(--tr), box-shadow var(--tr);
  min-height: 44px;
}
.search input:focus {
  outline: none; background: #fff; border-color: var(--indigo-500);
  box-shadow: 0 0 0 3px rgba(99,102,241,.14);
}
.search svg {
  position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
  width: 16px; height: 16px; color: var(--text-3);
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  padding: 8px 16px; border-radius: 999px;
  background: #fff; color: var(--text-2);
  font-size: 13px; border: 1px solid var(--gray-200);
  transition: all var(--tr); cursor: pointer;
  min-height: 36px;
}
.chip:hover { background: var(--blue-50); color: var(--navy-700); border-color: var(--blue-100); }
.chip.active {
  background: var(--navy-700); color: #fff; border-color: var(--navy-700);
  box-shadow: 0 4px 14px rgba(21,42,99,.3);
}
.chip .cnt { opacity: .75; margin-left: 4px; font-size: 12px; font-variant-numeric: tabular-nums; }

/* ---------- Command cards ---------- */
.cards {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}
.card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 18px; padding: 22px;
  display: flex; flex-direction: column; gap: 12px;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--grad-indigo);
  opacity: 0; transition: opacity var(--tr);
}
.card:hover {
  transform: translateY(-4px); box-shadow: 0 16px 36px -18px rgba(10,14,39,.2);
  border-color: var(--indigo-400);
}
.card:hover::before { opacity: 1; }

.card-head { display: flex; gap: 12px; align-items: flex-start; }
.card-ico {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 4px 10px rgba(20,40,80,.14);
}
.card-ttl { flex: 1; min-width: 0; }
.card-num {
  display: inline-block; font-size: 11.5px; font-weight: 500;
  color: var(--blue-700); background: var(--blue-50);
  padding: 2px 8px; border-radius: 999px;
  margin-bottom: 6px; letter-spacing: .3px;
  font-variant-numeric: tabular-nums;
}
.card-title {
  font-size: 15.5px; font-weight: 600; color: var(--text);
  line-height: 1.4; word-break: break-word;
}
.card-cat { font-size: 12px; color: var(--text-3); margin-top: 4px; }
.card-body {
  font-size: 13px; color: var(--text-2); line-height: 1.65;
  max-height: 66px; overflow: hidden; position: relative;
}
.card-body::after {
  content: ""; position: absolute; bottom: 0; left: 0; right: 0;
  height: 22px; background: linear-gradient(transparent, var(--surface));
}
.card-foot {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; margin-top: auto; padding-top: 4px;
}
.btn-copy {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px;
  background: var(--blue-50); color: var(--navy-700);
  font-size: 13px; font-weight: 500; border: 1px solid var(--blue-100);
  transition: background var(--tr), color var(--tr), border-color var(--tr);
  min-height: 36px;
}
.btn-copy:hover { background: var(--navy-700); color: #fff; border-color: var(--navy-700); }
.btn-copy.ok { background: #dcfce7; color: #166534; border-color: #bbf7d0; }
.btn-view {
  padding: 8px 14px; border-radius: 8px;
  background: transparent; color: var(--text-2);
  font-size: 13px; border: 1px solid var(--border);
  transition: all var(--tr); min-height: 36px;
}
.btn-view:hover { color: var(--brand); border-color: var(--blue-300); background: var(--blue-50); }

/* Empty */
.empty { padding: 60px 20px; text-align: center; color: var(--text-3); font-size: 14px; }

/* "查看全部 →" 右侧文字链接 */
.link-more {
  font-size: 13.5px; color: var(--brand);
  padding: 4px 0; border-bottom: 1px dashed transparent;
  transition: color var(--tr), border-color var(--tr);
}
.link-more:hover { color: var(--indigo-600); border-color: var(--indigo-500); }

/* ---------- Blog · home preview (compact 2-col) ---------- */
.blog-preview {
  display: grid; gap: 16px;
  grid-template-columns: repeat(2, 1fr);
}
.blog-preview .bp-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 20px; padding: 24px 26px;
  cursor: pointer; display: flex; gap: 16px;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.blog-preview .bp-card:hover {
  transform: translateY(-4px); box-shadow: 0 16px 36px -18px rgba(10,14,39,.2);
  border-color: var(--indigo-400);
}
.blog-preview .bp-ico {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 4px 10px rgba(20,40,80,.12);
}
.blog-preview .bp-body { flex: 1; min-width: 0; }
.blog-preview .bp-meta {
  font-size: 12px; color: var(--text-3);
  display: flex; gap: 8px; align-items: center; margin-bottom: 6px;
}
.blog-preview .bp-meta .sep { color: var(--gray-300); }
.blog-preview .bp-title {
  font-size: 15.5px; font-weight: 600; color: var(--text);
  line-height: 1.4; margin-bottom: 6px;
}
.blog-preview .bp-sum {
  font-size: 13px; color: var(--text-2); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
}

/* ---------- Blog · list page ---------- */
.blog-list {
  display: grid; gap: 14px;
  max-width: 860px;
}
.blog-list .bl-card {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 20px; padding: 26px 30px; cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
  display: flex; gap: 20px; align-items: flex-start;
}
.blog-list .bl-card:hover {
  transform: translateY(-4px); box-shadow: 0 16px 36px -18px rgba(10,14,39,.2);
  border-color: var(--indigo-400);
}
.blog-list .bl-ico {
  width: 52px; height: 52px; border-radius: 12px; flex-shrink: 0;
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 6px 14px rgba(20,40,80,.14);
}
.blog-list .bl-body { flex: 1; min-width: 0; }
.blog-list .bl-meta {
  font-size: 12px; color: var(--text-3);
  display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 8px;
}
.blog-list .bl-meta .sep { color: var(--gray-300); }
.blog-list .bl-meta .tag {
  background: var(--surface-2); color: var(--text-2);
  padding: 2px 8px; border-radius: 6px; font-size: 11.5px;
}
.blog-list .bl-title {
  font-size: 18px; font-weight: 600; color: var(--text);
  line-height: 1.4; margin-bottom: 8px;
}
.blog-list .bl-sum {
  font-size: 14px; color: var(--text-2); line-height: 1.7;
}
.blog-list .bl-arrow {
  color: var(--brand); font-size: 13px; font-weight: 500;
  margin-top: 12px; display: inline-flex; align-items: center; gap: 4px;
}

/* ---------- Article reader (blog detail) ---------- */
.article-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 40px; max-width: 1080px; margin: 0 auto;
}
.article-back {
  grid-column: 1 / -1;
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-3); font-size: 13px;
  padding: 4px 10px 4px 6px; border-radius: 6px;
  transition: color var(--tr), background var(--tr);
  width: fit-content;
}
.article-back:hover { color: var(--brand); background: var(--blue-50); }

.article-body {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 20px;
  padding: 48px 56px 56px;
  min-width: 0;
}
.article-body .a-head {
  margin-bottom: 32px; padding-bottom: 20px;
  border-bottom: 1px solid var(--border-soft);
}
.article-body .a-meta {
  font-size: 12.5px; color: var(--text-3);
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  margin-bottom: 12px;
}
.article-body .a-meta .sep { color: var(--gray-300); }
.article-body .a-meta .tag {
  background: var(--blue-50); color: var(--blue-700);
  padding: 2px 10px; border-radius: 999px; font-size: 11.5px;
}
.article-body h1 {
  margin: 0; font-size: 28px; font-weight: 700; line-height: 1.35;
  letter-spacing: .2px; color: var(--gray-900);
}
.article-body h2 {
  margin: 40px 0 14px; font-size: 22px; font-weight: 600;
  line-height: 1.4; letter-spacing: .2px; padding-top: 8px;
}
.article-body h3 {
  margin: 28px 0 12px; font-size: 17px; font-weight: 600;
  line-height: 1.5; color: var(--text);
}
.article-body h4 {
  margin: 20px 0 10px; font-size: 15px; font-weight: 600; color: var(--text-2);
}
.article-body p {
  margin: 12px 0; font-size: 15px; line-height: 1.85;
  color: var(--gray-800); word-break: break-word;
}
.article-body ul, .article-body ol {
  margin: 12px 0; padding-left: 24px; font-size: 15px; line-height: 1.9;
  color: var(--gray-800);
}
.article-body li { margin: 4px 0; }
.article-body li > ul, .article-body li > ol { margin: 4px 0; }
.article-body strong { color: var(--gray-900); font-weight: 600; }
.article-body em { color: var(--gray-700); }
.article-body a {
  color: var(--brand); border-bottom: 1px dashed var(--blue-300);
  padding-bottom: 1px;
}
.article-body a:hover { color: var(--indigo-600); border-color: var(--indigo-500); }
.article-body code {
  background: var(--surface-2); color: var(--brand-ink);
  padding: 2px 6px; border-radius: 4px; font-size: 13.5px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}
.article-body pre {
  margin: 16px 0; padding: 16px 18px;
  background: var(--code-bg); color: var(--code-text);
  border-radius: 10px; overflow-x: auto;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px; line-height: 1.7;
}
.article-body pre code {
  background: transparent; color: inherit; padding: 0;
}
.article-body blockquote {
  margin: 16px 0; padding: 12px 18px;
  background: var(--blue-50);
  border-left: 3px solid var(--blue-500);
  border-radius: 4px;
  color: var(--gray-700); font-size: 14px; line-height: 1.75;
}
.article-body blockquote p { margin: 4px 0; font-size: 14px; }

.article-body table {
  width: 100%; border-collapse: collapse; margin: 18px 0;
  font-size: 14px;
}
.article-body thead th {
  background: var(--surface-2); color: var(--text);
  font-weight: 600; padding: 10px 14px; text-align: left;
  border-bottom: 2px solid var(--border);
  font-size: 13.5px;
}
.article-body tbody td {
  padding: 10px 14px; border-bottom: 1px solid var(--border-soft);
  color: var(--gray-800); vertical-align: top; line-height: 1.7;
}
.article-body tbody tr:hover { background: #fafcfe; }

.article-body hr {
  border: none; height: 1px; background: var(--border-soft); margin: 32px 0;
}

.article-body h2, .article-body h3 { scroll-margin-top: 80px; }

/* Sidebar TOC (sticky) */
.article-toc {
  position: sticky; top: 88px;
  align-self: start; padding: 22px 20px;
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 18px;
  max-height: calc(100vh - 120px); overflow-y: auto;
}
.article-toc h4 {
  margin: 0 0 12px; font-size: 12px; font-weight: 500;
  color: var(--text-3); letter-spacing: .5px; text-transform: uppercase;
}
.article-toc ul { list-style: none; margin: 0; padding: 0; }
.article-toc li {
  font-size: 13px; margin: 6px 0; line-height: 1.5;
}
.article-toc li.toc-h3 { padding-left: 12px; font-size: 12.5px; }
.article-toc a {
  color: var(--text-2); border-left: 2px solid transparent;
  padding: 3px 10px; display: block; border-radius: 0 4px 4px 0;
  transition: color var(--tr), background var(--tr), border-color var(--tr);
}
.article-toc a:hover {
  color: var(--brand); background: var(--blue-50);
  border-left-color: var(--blue-500);
}
.article-toc a.active {
  color: var(--brand); background: var(--blue-50);
  border-left-color: var(--brand); font-weight: 500;
}

/* ---------- FAQ (home page, matches FAQPage schema) ---------- */
.faq { display: grid; gap: 10px; }
.faq-item {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 18px; padding: 4px 22px;
  transition: box-shadow var(--tr), border-color var(--tr);
}
.faq-item[open] { border-color: var(--indigo-400); box-shadow: 0 6px 20px -12px rgba(10,14,39,.2); }
.faq-item summary {
  cursor: pointer; padding: 16px 0; font-weight: 500; font-size: 15px;
  color: var(--text); list-style: none;
  display: flex; align-items: center; gap: 10px;
  min-height: 44px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%;
  background: var(--grad-indigo); flex-shrink: 0;
}
.faq-item summary::after {
  content: "+"; margin-left: auto; color: var(--text-3);
  font-size: 20px; font-weight: 300; transition: transform var(--tr);
}
.faq-item[open] summary::after { transform: rotate(45deg); color: var(--brand); }
.faq-item p {
  margin: 0 0 16px; padding-left: 18px;
  color: var(--text-2); font-size: 14px; line-height: 1.75;
}
.faq-item p a { color: var(--brand); border-bottom: 1px dashed var(--blue-300); }
.faq-item p a:hover { color: var(--indigo-600); border-color: var(--indigo-500); }
.faq-item p strong { color: var(--text); font-weight: 500; }

/* ---------- SOP page ---------- */
.sop-part {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 18px; padding: 22px 24px; margin-bottom: 14px;
  transition: box-shadow var(--tr);
}
.sop-part:hover { box-shadow: var(--shadow-sm); }
.sop-part-hd {
  display: flex; align-items: center; gap: 10px;
  font-weight: 600; color: var(--text); font-size: 15px;
  cursor: pointer; user-select: none;
  min-height: 32px;
}
.sop-part-hd .caret { transition: transform var(--tr); color: var(--text-3); }
.sop-part.collapsed .caret { transform: rotate(-90deg); }
.sop-part.collapsed .sop-part-body { display: none; }
.sop-part-hd .badge {
  margin-left: auto; font-size: 12px; color: var(--blue-700);
  background: var(--blue-50); padding: 3px 10px; border-radius: 999px;
  font-weight: 500;
}
.sop-part-body { margin-top: 14px; display: grid; gap: 12px; }

.scen {
  background: #fafcfe; border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm); padding: 16px 18px;
}
.scen-ttl { font-weight: 600; font-size: 14.5px; margin-bottom: 12px; color: var(--text); }
.scen-block { margin-top: 12px; }
.scen-lab {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500;
  padding: 3px 10px; border-radius: 6px; margin-bottom: 6px;
}
.lab-thought { background: var(--blue-50);   color: var(--blue-700); }
.lab-en      { background: #ecfdf5;          color: #047857; }
.lab-zh      { background: var(--warm-soft); color: var(--warm-ink); }
.scen-txt {
  font-size: 13.5px; color: var(--text-2); line-height: 1.75;
  white-space: pre-wrap; word-break: break-word;
}
.scen-actions { display: flex; justify-content: flex-end; margin-top: 4px; }

/* ---------- Gallery ---------- */
.gallery-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.gallery-item {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 20px; overflow: hidden; cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.gallery-item:hover {
  transform: translateY(-5px); box-shadow: 0 18px 40px -20px rgba(10,14,39,.24);
  border-color: var(--indigo-400);
}
.gallery-item .cover {
  aspect-ratio: 4/3; background: var(--surface-2);
  overflow: hidden; position: relative;
}
.gallery-item .cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.gallery-item:hover .cover img { transform: scale(1.05); }
.gallery-item .meta {
  padding: 12px 16px 14px;
  display: flex; justify-content: space-between; align-items: baseline;
}
.gallery-item .meta strong { font-weight: 600; font-size: 15px; }
.gallery-item .meta span   { color: var(--text-3); font-size: 12.5px; }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; background: rgba(15,23,42,.92);
  display: none; align-items: center; justify-content: center;
  z-index: 100; padding: 40px; flex-direction: column; gap: 16px;
}
.lightbox.on { display: flex; }
.lightbox img { max-width: min(1000px, 95vw); max-height: 78vh; border-radius: 8px; }
.lightbox .lb-close {
  position: absolute; top: 20px; right: 24px;
  color: #fff; background: rgba(255,255,255,.14);
  width: 44px; height: 44px; border-radius: 50%; border: none;
  font-size: 22px; display: grid; place-items: center;
}
.lightbox .lb-nav { display: flex; gap: 12px; }
.lightbox .lb-nav button {
  background: rgba(255,255,255,.14); color: #fff; border: none;
  padding: 10px 22px; border-radius: 8px; font-size: 14px; min-height: 44px;
}
.lightbox .lb-nav button:hover { background: rgba(255,255,255,.24); }
.lightbox .lb-info { color: rgba(255,255,255,.7); font-size: 13px; }

/* ---------- About ---------- */
.about-hero {
  background:
    radial-gradient(700px 300px at 100% 0%, rgba(99,102,241,.12), transparent 65%),
    linear-gradient(135deg, #fff 0%, #f6f8ff 100%);
  border: 1px solid var(--gray-200); border-radius: 24px;
  padding: 48px 44px; margin-bottom: 24px;
}
.about-hero h2 { margin: 0 0 10px; font-size: 34px; font-weight: 700; letter-spacing: -1px; }
.about-hero .role { color: var(--indigo-600); font-weight: 500; }
.about-hero p { color: var(--text-2); max-width: 720px; margin: 0; }

.about-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px;
  align-items: start;
}
.about-block {
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 20px; padding: 26px 28px;
}
.about-block h3 {
  margin: 0 0 14px; font-size: 16px; font-weight: 600;
  display: flex; align-items: center; gap: 8px;
}
.about-block h3 .ico {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--blue-50); color: var(--blue-600);
  display: grid; place-items: center; font-size: 15px;
}
.about-block ul { margin: 0; padding-left: 22px; color: var(--text-2); }
.about-block li { margin: 6px 0; }
.about-block p { color: var(--text-2); margin: 8px 0; }
.about-block strong { color: var(--text); }
.about-quote {
  border-left: 3px solid var(--indigo-500);
  padding: 14px 16px; color: var(--gray-700);
  background: var(--accent-soft); border-radius: 8px;
  margin: 10px 0;
}

.about-cta {
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(99,102,241,.10), transparent 65%),
    #fff;
  border: 1px solid var(--gray-200);
  border-radius: 20px; padding: 30px 28px; text-align: center;
  position: sticky; top: 88px;
}
.about-cta h3 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.about-cta p  { margin: 0 0 20px; color: var(--text-3); font-size: 14px; }

.wechat-pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: 999px; border: none;
  color: #fff; font-size: 16px; font-weight: 600;
  background: var(--grad-hero);
  box-shadow: 0 10px 28px rgba(21,42,99,.32);
  transition: transform var(--tr), box-shadow var(--tr);
  min-height: 52px;
}
.wechat-pill:hover { transform: translateY(-2px); box-shadow: 0 16px 38px rgba(21,42,99,.44); }
.wechat-pill svg { width: 20px; height: 20px; }
.wechat-hint { display: block; margin-top: 10px; color: var(--text-3); font-size: 13.5px; }

.wechat-id-row {
  margin-top: 22px; padding-top: 20px;
  border-top: 1px dashed var(--border); text-align: left;
}
.wechat-id-row .label { font-size: 13px; color: var(--text-3); margin-bottom: 6px; }
.wechat-id-row .id {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 16px; color: var(--navy-700); font-weight: 600;
}

/* ---------- Modal ---------- */
.modal {
  position: fixed; inset: 0; z-index: 90;
  background: rgba(15,23,42,.55);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.modal.on { display: flex; }
.modal-inner {
  background: #fff; border-radius: var(--radius-lg);
  padding: 32px; max-width: 380px; width: 100%;
  text-align: center; position: relative;
  animation: pop .2s ease;
  max-height: calc(100vh - 48px); overflow: auto;
}
@keyframes pop { from { transform: scale(.94); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-inner h3 { margin: 0 0 6px; font-size: 18px; font-weight: 600; }
.modal-inner p  { margin: 0 0 18px; color: var(--text-3); font-size: 13.5px; }
.modal-inner .qr {
  width: 100%; max-width: 260px; margin: 0 auto;
  border-radius: 12px; border: 1px solid var(--border);
}
.modal-inner .wx-id {
  margin-top: 16px; padding: 11px 14px;
  background: var(--blue-50);
  color: var(--navy-700); border-radius: 10px; font-size: 14px;
  font-weight: 600; letter-spacing: .3px;
}
/* QR modal purpose list */
.modal-inner .qr-uses {
  margin: 16px 0 0; padding: 14px 16px; text-align: left;
  background: var(--gray-50); border: 1px solid var(--border-soft);
  border-radius: 12px; display: grid; gap: 8px;
}
.modal-inner .qr-uses div {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 13.5px; color: var(--gray-800); line-height: 1.5;
}
.modal-inner .qr-uses .dot {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0;
  background: var(--grad-indigo); margin-top: 7px;
}
.modal-close {
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px; border-radius: 50%; border: none;
  background: var(--surface-2); color: var(--text-2); font-size: 18px;
  display: grid; place-items: center;
}
.modal-close:hover { background: var(--gray-200); color: var(--text); }

/* Command prompt modal */
.prompt-modal .modal-inner { max-width: 720px; text-align: left; padding: 28px; }
.prompt-modal h3 { font-size: 16px; margin-bottom: 4px; }
.prompt-modal .meta { color: var(--text-3); font-size: 12.5px; margin-bottom: 16px; }
.prompt-modal pre {
  margin: 0; padding: 18px 20px; background: var(--code-bg); color: var(--code-text);
  border-radius: 10px; font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px; line-height: 1.7; max-height: 55vh; overflow: auto;
  white-space: pre-wrap; word-break: break-word;
}
.prompt-modal .actions {
  display: flex; gap: 10px; justify-content: flex-end; margin-top: 16px;
  flex-wrap: wrap;
}

/* Toast */
.toast {
  position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--gray-900); color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 13.5px; opacity: 0; transition: all .25s;
  z-index: 200; pointer-events: none; box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   Floating WeChat FAB — visible on every page
   ============================================================ */
.wx-fab {
  position: fixed; right: 26px; bottom: 30px; z-index: 80;
  display: flex; align-items: center; gap: 0;
  height: 56px; width: 56px; padding: 0;
  border: none; border-radius: 999px;
  background: var(--grad-hero);
  color: #fff; cursor: pointer;
  box-shadow: 0 10px 30px rgba(21,42,99,.38), 0 0 0 0 rgba(99,102,241,.5);
  transition: width var(--tr-slow), box-shadow var(--tr-slow), transform var(--tr);
  overflow: hidden; white-space: nowrap;
  animation: fabGlow 3s ease-in-out infinite;
}
.wx-fab svg { width: 25px; height: 25px; flex-shrink: 0; margin-left: 15.5px; }
.wx-fab .fab-txt {
  font-size: 14px; font-weight: 500; letter-spacing: .3px;
  opacity: 0; max-width: 0; transition: opacity var(--tr), max-width var(--tr-slow), padding var(--tr-slow);
  padding: 0;
}
.wx-fab:hover {
  width: 178px; transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(21,42,99,.48);
  animation: none;
}
.wx-fab:hover .fab-txt { opacity: 1; max-width: 130px; padding: 0 20px 0 10px; }
@keyframes fabGlow {
  0%, 100% { box-shadow: 0 10px 30px rgba(21,42,99,.38), 0 0 0 0 rgba(99,102,241,.45); }
  50%      { box-shadow: 0 10px 30px rgba(21,42,99,.38), 0 0 0 12px rgba(99,102,241,0); }
}
/* Small badge dot */
.wx-fab::after {
  content: ""; position: absolute; top: 12px; right: 13px;
  width: 9px; height: 9px; border-radius: 50%;
  background: #34d399; border: 2px solid #fff;
  transition: opacity var(--tr);
}
.wx-fab:hover::after { opacity: 0; }

/* Footer · dark navy */
footer {
  border-top: none;
  background: var(--navy-700);
  color: rgba(255,255,255,.62);
  padding: 56px 28px 60px; margin-top: 80px;
  text-align: center; font-size: 13.5px;
  position: relative; overflow: hidden;
}
footer::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(700px 300px at 50% 0%, rgba(99,102,241,.22), transparent 70%);
}
footer > * { position: relative; z-index: 1; }
footer .f-brand {
  font-size: 19px; font-weight: 700; color: #fff;
  letter-spacing: -.4px; margin-bottom: 8px;
}
footer .f-tag { color: rgba(255,255,255,.5); font-size: 13.5px; margin-bottom: 22px; }
footer .f-wx {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.16);
  padding: 9px 20px; border-radius: 999px;
  color: #fff; font-size: 13.5px; cursor: pointer;
  transition: background var(--tr), transform var(--tr);
}
footer .f-wx:hover { background: rgba(255,255,255,.16); transform: translateY(-1px); }
footer .f-wx svg { width: 16px; height: 16px; }
footer .f-copy {
  margin-top: 26px; padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12.5px; color: rgba(255,255,255,.42);
}
footer .f-icp {
  margin-top: 12px; font-size: 12.5px;
}
footer .f-icp a {
  color: rgba(255,255,255,.42);
  transition: color var(--tr);
}
footer .f-icp a:hover { color: rgba(255,255,255,.75); }
footer strong { color: #fff; font-weight: 600; }
footer .sep { color: rgba(255,255,255,.24); margin: 0 8px; }

/* ============================================================
   Scroll reveal animations
   ============================================================ */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .07s; }
.reveal.d2 { transition-delay: .14s; }
.reveal.d3 { transition-delay: .21s; }
.reveal.d4 { transition-delay: .28s; }

/* ============================================================
   Bottom CTA band (dark, mirrors hero)
   ============================================================ */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--grad-hero);
  margin: 90px calc(50% - 50vw) 0; width: 100vw;
  padding: 96px 32px 100px; text-align: center; color: #fff;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(700px 500px at 30% 20%, rgba(99,102,241,.32), transparent 70%),
    radial-gradient(600px 400px at 75% 80%, rgba(59,111,224,.24), transparent 70%);
}
.cta-band > * { position: relative; z-index: 1; }
/* Home ends with a dark CTA band — remove the .wrap bottom padding and the
   footer top margin so the two dark blocks join without a white gap */
body[data-page="home"] .page[data-page="home"] { padding-bottom: 0; }
body[data-page="home"] footer { margin-top: 0; }
.cta-band h2 {
  margin: 0 0 14px; font-size: 42px; font-weight: 700;
  letter-spacing: -1.4px; line-height: 1.2; color: #fff;
}
.cta-band p {
  margin: 0 auto 34px; font-size: 17px;
  color: rgba(255,255,255,.66); max-width: 560px; line-height: 1.7;
}
.cta-band .hero-cta { margin-top: 0; }

/* ============================================================
   RESPONSIVE — 1180 / 900 / 640 / 480
   Mobile-first tweaks (touch, spacing, single-column, bottom nav)
   ============================================================ */

@media (max-width: 1180px) {
  .stats  { grid-template-columns: repeat(4, 1fr); }
  .entries{ grid-template-columns: repeat(2, 1fr); }
  .wrap   { padding: 28px 24px 80px; }
}

@media (max-width: 900px) {
  .stats  { grid-template-columns: repeat(2, 1fr); gap: 34px 0; padding: 42px 24px; }
  .entries{ grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .hero        { padding: 84px 24px 76px; }
  .hero h1     { font-size: 48px; letter-spacing: -1.6px; }
  .hero p.lead { font-size: 17px; }
  .stat .num   { font-size: 38px; letter-spacing: -1.4px; }
  .section-head h2 { font-size: 28px; letter-spacing: -.8px; }
  .cta-band    { padding: 70px 24px 76px; margin-top: 70px; }
  .cta-band h2 { font-size: 32px; letter-spacing: -1px; }
  .cta-band p  { font-size: 15.5px; }
  .about-hero  { padding: 32px 24px; }
}

@media (max-width: 640px) {
  /* hide desktop nav links & meta on mobile, show bottom nav */
  .nav-inner   { padding: 12px 16px; gap: 10px; }
  .nav-links   { display: none; }
  .nav-meta    { display: none; }

  .mnav        { display: block; }
  body         { padding-bottom: 72px; } /* room for bottom nav */

  .wrap        { padding: 20px 16px 32px; }

  .hero        { padding: 62px 20px 58px; }
  .hero h1     { font-size: 36px; letter-spacing: -1.2px; margin: 22px auto 18px; }
  .hero p.lead { font-size: 15.5px; line-height: 1.7; }
  .hero-eyebrow{ font-size: 12px; padding: 7px 15px; }
  .hero-tags   { margin-top: 20px; gap: 8px; }
  .hero-tags span { font-size: 11.5px; padding: 5px 13px; }
  .hero-cta    { gap: 10px; margin-top: 30px; }
  .btn         { padding: 14px 26px; font-size: 15px; min-height: 50px; }

  .stats       { grid-template-columns: repeat(2, 1fr); gap: 28px 0; padding: 34px 18px; }
  .stat        { padding: 0 8px; }
  .stat .num   { font-size: 32px; letter-spacing: -1.2px; }
  .stat .lab   { font-size: 12.5px; }
  .section-head h2 { font-size: 25px; letter-spacing: -.7px; }
  .section-head p  { font-size: 14px; }
  .eyebrow     { font-size: 11px; letter-spacing: 2.4px; }

  .cta-band    { padding: 56px 20px 60px; margin-top: 56px; }
  .cta-band h2 { font-size: 26px; letter-spacing: -.7px; }
  .cta-band p  { font-size: 14.5px; margin-bottom: 26px; }

  .entries     { grid-template-columns: 1fr; gap: 12px; }
  .entry-card  { padding: 22px 20px; border-radius: 18px; }

  /* FAB sits above the 5-tab bottom nav */
  .wx-fab      { right: 16px; bottom: 84px; width: 52px; height: 52px; }
  .wx-fab svg  { width: 23px; height: 23px; margin-left: 14.5px; }
  .wx-fab:hover{ width: 52px; }
  .wx-fab:hover .fab-txt { opacity: 0; max-width: 0; padding: 0; }
  .wx-fab:hover::after { opacity: 1; }

  footer       { padding: 44px 20px 48px; margin-top: 56px; }
  footer .f-brand { font-size: 17px; }

  .cards       { grid-template-columns: 1fr; gap: 12px; }
  .card        { padding: 18px; }
  .card-body   { max-height: 60px; }

  .toolbar     { padding: 10px; gap: 10px; }
  .chip        { padding: 8px 12px; font-size: 12.5px; }

  .about-hero  { padding: 26px 20px; }
  .about-hero h2 { font-size: 22px; }
  .about-block { padding: 20px 18px; }
  .about-cta   { padding: 24px 20px; }
  .wechat-pill { padding: 13px 26px; font-size: 15px; }

  .modal       { padding: 16px; align-items: flex-end; }
  .modal-inner { max-width: 100%; border-radius: 16px 16px 8px 8px; padding: 24px 20px; }
  .prompt-modal { align-items: center; }
  .prompt-modal .modal-inner { padding: 22px 18px; border-radius: 14px; }
  .prompt-modal pre { font-size: 12px; padding: 14px 14px; }

  .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .gallery-item .meta { padding: 10px 12px 12px; }

  .lightbox { padding: 20px 12px; }
  .lightbox .lb-close { top: 12px; right: 12px; }

  .toast { bottom: 90px; } /* above the mobile bottom nav */
  footer .sep { display: block; height: 6px; }
  footer .sep::before { content: ""; }

  /* Blog list & preview: single column on mobile */
  .blog-preview { grid-template-columns: 1fr; }
  .blog-list .bl-card { padding: 18px 18px; gap: 14px; }
  .blog-list .bl-ico  { width: 42px; height: 42px; border-radius: 10px; }
  .blog-list .bl-title { font-size: 16px; }
  .blog-list .bl-sum   { font-size: 13.5px; }

  /* Article reader: hide TOC sidebar, tighten paddings */
  .article-shell { grid-template-columns: 1fr; gap: 16px; }
  .article-toc   { display: none; }
  .article-body  { padding: 28px 22px 34px; }
  .article-body h1 { font-size: 22px; }
  .article-body h2 { font-size: 18px; margin-top: 28px; }
  .article-body h3 { font-size: 15.5px; margin-top: 20px; }
  .article-body p, .article-body ul, .article-body ol { font-size: 14.5px; }
  .article-body table { display: block; overflow-x: auto; }
}

/* Tablet: article col + narrower TOC */
@media (max-width: 900px) and (min-width: 641px) {
  .article-shell { grid-template-columns: minmax(0,1fr) 180px; gap: 24px; }
  .article-body  { padding: 36px 34px 44px; }
  .blog-preview { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat .num { font-size: 26px; }
  .hero h1 { font-size: 31px; }
  .gallery-grid { grid-template-columns: 1fr; }
}

/* reduced-motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}