/* ============================================================
   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 business blue (trust, primary) — */
  --blue-50:   #eaf1f9;
  --blue-100:  #d3e2f0;
  --blue-300:  #7fa8cf;
  --blue-500:  #2f6db0;      /* primary */
  --blue-600:  #1e5b9a;
  --blue-700:  #144780;
  --blue-800:  #0f3f74;

  /* — 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:   #f5f7fa;      /* page bg */
  --gray-100:  #eef1f6;      /* muted panel */
  --gray-200:  #dde2ea;      /* border */
  --gray-300:  #c4ccd8;
  --gray-500:  #7d8699;
  --gray-600:  #5a6478;
  --gray-700:  #3d4658;
  --gray-800:  #232b3d;
  --gray-900:  #141a29;

  /* 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(--orange-500);
  --accent-soft:   var(--orange-50);
  --accent-ink:    var(--orange-700);

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

  --shadow-sm:     0 1px 2px rgba(20,30,50,.05), 0 1px 3px rgba(20,30,50,.06);
  --shadow-md:     0 8px 22px rgba(20,40,80,.08);
  --shadow-lg:     0 24px 60px rgba(20,40,80,.16);
  --shadow-brand:  0 10px 24px rgba(30,91,154,.22);
  --shadow-accent: 0 10px 24px rgba(238,106,43,.28);

  --radius:        14px;
  --radius-sm:     8px;
  --radius-lg:     20px;
  --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,.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border-soft);
}
.nav-inner {
  max-width: 1220px; margin: 0 auto;
  padding: 14px 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: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-500) 100%);
  color: #fff; display: grid; place-items: center;
  font-weight: 700; font-size: 15px; letter-spacing: .5px;
  box-shadow: 0 6px 14px rgba(30,91,154,.32);
  position: relative;
}
.brand-mark::after {
  content: ""; position: absolute; right: -3px; bottom: -3px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--orange-500);
  border: 2px solid #fff;
}
.brand-text { font-size: 16px; font-weight: 500; }
.brand-text small { display: block; font-size: 11px; color: var(--text-3); font-weight: 400; margin-top: 1px; letter-spacing: .5px; }

.nav-links { display: flex; gap: 4px; margin-left: 28px; }
.nav-links a {
  padding: 8px 14px; border-radius: 8px;
  color: var(--text-2); font-size: 14.5px;
  transition: color var(--tr), background var(--tr);
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active {
  color: var(--brand-ink); background: var(--brand-soft);
  font-weight: 500;
}

.nav-meta {
  margin-left: auto;
  display: flex; align-items: center; gap: 12px;
  color: var(--text-3); font-size: 13px;
}
.nav-meta .divider { color: var(--gray-300); }
.nav-meta .wx {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent-ink); background: var(--accent-soft);
  padding: 6px 12px; border-radius: 999px; font-weight: 500;
  border: 1px solid #ffdfc9;
}

/* ---------- 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; }

.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: 24px; letter-spacing: .3px; font-weight: 600; }
.section-head p  { margin: 4px 0 0; color: var(--text-3); font-size: 14px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1000px 400px at 100% -10%, rgba(30,91,154,.10), transparent 60%),
    radial-gradient(700px 300px at -10% 110%, rgba(238,106,43,.10), transparent 60%),
    linear-gradient(180deg, #fff, #f8fafd 100%);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 56px 48px 52px;
  box-shadow: var(--shadow-sm);
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border);
  padding: 6px 12px; border-radius: 999px;
  font-size: 12.5px; color: var(--text-2);
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero h1 {
  margin: 18px 0 12px; font-size: 40px; line-height: 1.2;
  letter-spacing: .5px; font-weight: 700; color: var(--gray-900);
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--orange-500), var(--orange-400));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.lead {
  margin: 0; font-size: 16px; color: var(--text-2); max-width: 680px;
}
.hero-cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px;
  font-size: 14px; font-weight: 500;
  border: 1px solid transparent; background: #fff;
  transition: transform var(--tr), box-shadow var(--tr), background var(--tr), color var(--tr);
  min-height: 44px; /* touch target */
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  color: #fff; box-shadow: var(--shadow-brand);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(30,91,154,.35); color: #fff; }
.btn-accent {
  background: linear-gradient(135deg, var(--orange-500), var(--orange-400));
  color: #fff; box-shadow: var(--shadow-accent);
}
.btn-accent:hover { box-shadow: 0 14px 30px rgba(238,106,43,.35); color: #fff; }
.btn-ghost { border-color: var(--border); color: var(--text-2); background: #fff; }
.btn-ghost:hover { border-color: var(--blue-300); color: var(--brand); }

/* ---------- Stats ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 14px; margin-top: 32px;
}
.stat {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 20px 22px;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
  position: relative; overflow: hidden;
}
.stat::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--blue-500); border-radius: 3px 0 0 3px;
}
.stat:nth-child(2)::before { background: var(--orange-500); }
.stat:nth-child(3)::before { background: var(--blue-700); }
.stat:nth-child(4)::before { background: var(--orange-400); }
.stat:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--blue-300); }
.stat .num {
  font-size: 28px; font-weight: 700; letter-spacing: .5px;
  color: var(--gray-900);
  font-variant-numeric: tabular-nums;
}
.stat .lab { color: var(--text-3); font-size: 13px; margin-top: 4px; }

/* ---------- Entry cards ---------- */
.entries {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin-top: 36px;
}
.entry-card {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 22px; cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
  position: relative;
}
.entry-card:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-color: var(--blue-300);
}
.entry-card .ico {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--blue-50); color: var(--blue-600);
  display: grid; place-items: center; margin-bottom: 14px;
  transition: background var(--tr), color var(--tr);
}
.entry-card:hover .ico { background: var(--blue-600); color: #fff; }
.entry-card h3 { margin: 0 0 6px; font-size: 15.5px; font-weight: 600; color: var(--text); }
.entry-card p { margin: 0; color: var(--text-3); font-size: 13px; line-height: 1.55; }
.entry-card .arrow {
  margin-top: 12px; color: var(--brand); font-size: 13px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 4px;
}

/* ---------- Toolbar / Search / Chips ---------- */
.toolbar {
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  padding: 12px; background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}
.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(--blue-500);
  box-shadow: 0 0 0 3px rgba(47,109,176,.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 14px; border-radius: 999px;
  background: var(--surface-2); color: var(--text-2);
  font-size: 13px; border: 1px solid transparent;
  transition: all var(--tr); cursor: pointer;
  min-height: 36px;
}
.chip:hover { background: #e2e7f0; color: var(--text); }
.chip.active {
  background: var(--blue-600); color: #fff; border-color: var(--blue-600);
  box-shadow: 0 4px 12px rgba(30,91,154,.28);
}
.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: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 20px;
  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(--blue-500);
  opacity: 0; transition: opacity var(--tr);
}
.card:hover {
  transform: translateY(-2px); box-shadow: var(--shadow-md);
  border-color: var(--blue-300);
}
.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(--accent-soft); color: var(--accent-ink);
  font-size: 13px; font-weight: 500; border: 1px solid #ffdfc9;
  transition: background var(--tr), color var(--tr), border-color var(--tr);
  min-height: 36px;
}
.btn-copy:hover { background: var(--orange-500); color: #fff; border-color: var(--orange-500); }
.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; }

/* ---------- FAQ (home page, matches FAQPage schema) ---------- */
.faq { display: grid; gap: 10px; }
.faq-item {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 4px 20px;
  transition: box-shadow var(--tr), border-color var(--tr);
}
.faq-item[open] { border-color: var(--blue-300); box-shadow: var(--shadow-sm); }
.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(--brand); 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(--accent-ink); border-color: var(--orange-500); }
.faq-item p strong { color: var(--text); font-weight: 500; }

/* ---------- SOP page ---------- */
.sop-part {
  background: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 20px 22px; 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(--accent-soft); color: var(--accent-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: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); overflow: hidden; cursor: pointer;
  transition: transform var(--tr), box-shadow var(--tr), border-color var(--tr);
}
.gallery-item:hover {
  transform: translateY(-3px); box-shadow: var(--shadow-md);
  border-color: var(--blue-300);
}
.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(600px 260px at 100% 0%, rgba(30,91,154,.10), transparent 60%),
    linear-gradient(135deg, #fff 0%, #f7faff 100%);
  border: 1px solid var(--border-soft); border-radius: var(--radius-lg);
  padding: 44px 40px; margin-bottom: 24px;
}
.about-hero h2 { margin: 0 0 8px; font-size: 26px; font-weight: 700; }
.about-hero .role { color: var(--accent-ink); 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: var(--surface); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 24px 26px;
}
.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(--orange-500);
  padding: 14px 16px; color: var(--gray-700);
  background: var(--accent-soft); border-radius: 8px;
  margin: 10px 0;
}

.about-cta {
  background:
    radial-gradient(400px 200px at 100% 0%, rgba(238,106,43,.10), transparent 60%),
    var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 28px; text-align: center;
}
.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: linear-gradient(135deg, var(--orange-500) 0%, var(--orange-400) 100%);
  box-shadow: var(--shadow-accent);
  transition: transform var(--tr), box-shadow var(--tr);
  min-height: 52px;
}
.wechat-pill:hover { transform: translateY(-2px); box-shadow: 0 18px 34px rgba(238,106,43,.4); }
.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(--accent-ink); 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: 10px 14px;
  background: var(--accent-soft);
  color: var(--accent-ink); border-radius: 10px; font-size: 14px;
  font-weight: 500; letter-spacing: .3px;
}
.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); }

/* Footer */
footer {
  border-top: 1px solid var(--border-soft);
  padding: 26px 0 32px; margin-top: 40px;
  text-align: center; color: var(--text-3); font-size: 13px;
}
footer strong { color: var(--brand-ink); font-weight: 500; }
footer .sep { color: var(--gray-300); margin: 0 8px; }

/* ============================================================
   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); }
  .entries{ grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .hero        { padding: 40px 28px; }
  .hero h1     { font-size: 32px; }
  .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: 32px 22px; border-radius: 16px; }
  .hero h1     { font-size: 26px; }
  .hero p.lead { font-size: 14.5px; }
  .hero-cta    { gap: 10px; }
  .btn         { padding: 11px 18px; font-size: 13.5px; }

  .stats       { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat        { padding: 16px 16px; }
  .stat .num   { font-size: 22px; }

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

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

  .section-head h2 { font-size: 20px; }

  .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: ""; }
}

@media (max-width: 380px) {
  .stats { grid-template-columns: 1fr 1fr; }
  .stat .num { font-size: 20px; }
  .gallery-grid { grid-template-columns: 1fr; }
}

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