/* ==========================================================================
   启航数链 · 开源官网 整站样式
   qihangerp.cn — Open Source First
   ========================================================================== */

/* ---------- 1. Variables & Reset ---------- */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-deep: #1e40af;
  --indigo: #4f46e5;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --green: #059669;
  --green-light: #ecfdf5;
  --blue-light: #eff6ff;
  --amber-light: #fffbeb;
  --red: #dc2626;
  --ink: #0f172a;
  --ink-2: #334155;
  --ink-3: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-softer: #f1f5f9;
  --dark: #0b1220;
  --dark-2: #101a2e;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px -12px rgba(15, 23, 42, .12);
  --shadow-lg: 0 24px 48px -16px rgba(15, 23, 42, .18);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3, h4, h5 { line-height: 1.35; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 4.6vw, 52px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }

code { font-family: var(--mono); font-size: .88em; background: var(--bg-softer); padding: 2px 6px; border-radius: 5px; color: #be123c; }

/* ---------- 2. Layout ---------- */
.container { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }
.section { padding: 72px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark { background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 100%); color: #cbd5e1; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.section-head p { color: var(--ink-3); margin-top: 12px; font-size: 17px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--primary); background: var(--blue-light); border: 1px solid #dbeafe;
  padding: 4px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section-dark .eyebrow { background: rgba(37, 99, 235, .16); border-color: rgba(96, 165, 250, .35); color: #93c5fd; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 3. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 600; padding: 11px 22px; border-radius: 10px;
  border: 1px solid transparent; transition: all .18s ease; white-space: nowrap; line-height: 1.4;
}
.btn svg { flex: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 22px -8px rgba(37, 99, 235, .55); }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost { color: #e2e8f0; border-color: rgba(255,255,255,.25); background: transparent; }
.btn-ghost:hover { color: #fff; border-color: #fff; }
.btn-white { background: #fff; color: var(--primary-deep); }
.btn-white:hover { transform: translateY(-1px); box-shadow: var(--shadow-lg); color: var(--primary-deep); }
.btn-accent { background: linear-gradient(135deg, #f59e0b, #ea580c); color: #fff; }
.btn-accent:hover { filter: brightness(1.06); color: #fff; transform: translateY(-1px); box-shadow: 0 10px 22px -8px rgba(234, 88, 12, .5); }
.btn-lg { font-size: 16px; padding: 14px 28px; border-radius: 12px; }
.btn-sm { font-size: 13px; padding: 7px 14px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn-row.center { justify-content: center; }

.link-arrow { font-weight: 600; white-space: nowrap; }
.link-arrow::after { content: "→"; margin-left: 5px; transition: margin .18s; display: inline-block; }
.link-arrow:hover::after { margin-left: 9px; }

/* ---------- 4. Badges / Chips / Tags ---------- */
.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; vertical-align: middle; }
.badge-green { background: var(--green-light); color: var(--green); border: 1px solid #a7f3d0; }
.badge-blue { background: var(--blue-light); color: var(--primary-dark); border: 1px solid #bfdbfe; }
.badge-amber { background: var(--amber-light); color: #b45309; border: 1px solid #fde68a; }
.badge-gray { background: var(--bg-softer); color: var(--ink-3); border: 1px solid var(--line); }
.badge-red { background: #fef2f2; color: var(--red); border: 1px solid #fecaca; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 5px 14px;
}
.chip-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- 5. Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; color: var(--ink); flex: none; }
.logo img { width: 32px; height: 32px; border-radius: 8px; }
.logo em { font-style: normal; color: var(--primary); }
.logo-sub { font-size: 11px; font-weight: 500; color: var(--ink-3); display: block; letter-spacing: .04em; }

.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block; padding: 8px 13px; font-size: 15px; font-weight: 500; color: var(--ink-2); border-radius: 8px;
}
.main-nav > li > a:hover, .main-nav > li > a.active { color: var(--primary); background: var(--blue-light); }
.main-nav > li.has-dropdown > a::after { content: "▾"; font-size: 11px; margin-left: 4px; color: var(--ink-3); }

.dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(6px);
  width: 300px; background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transition: all .18s ease;
}
.has-dropdown:hover .dropdown, .has-dropdown:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown a { display: flex; gap: 12px; align-items: flex-start; padding: 11px 12px; border-radius: 10px; color: var(--ink); }
.dropdown a:hover { background: var(--bg-soft); }
.dropdown .dd-icon { flex: none; width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; font-size: 19px; background: var(--blue-light); }
.dropdown b { display: block; font-size: 14.5px; }
.dropdown span { display: block; font-size: 12.5px; color: var(--ink-3); font-weight: 400; }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.nav-toggle { display: none; background: none; border: none; width: 40px; height: 40px; border-radius: 8px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink); margin: 4px auto; border-radius: 2px; transition: all .2s; }

/* ---------- 6. Breadcrumb / Page head ---------- */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--ink-3); padding: 18px 0 0; flex-wrap: wrap; }
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--primary); }
.page-hero { padding: 56px 0 60px; position: relative; overflow: hidden; }
.page-hero .container { position: relative; z-index: 1; }
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(37, 99, 235, .13) 1px, transparent 0);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 75% 70% at 50% 35%, #000 45%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 35%, #000 45%, transparent 100%);
}

/* ---------- 7. Hero ---------- */
.hero { padding: 84px 0 76px; position: relative; overflow: hidden; }
.hero-home {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(79, 70, 229, .14), transparent 60%),
    radial-gradient(700px 380px at 8% 0%, rgba(37, 99, 235, .12), transparent 55%),
    #fff;
}
.hero-center { text-align: center; max-width: 880px; margin: 0 auto; }
.hero-sub { font-size: 18px; color: var(--ink-3); margin-top: 18px; }
.hero-actions { margin-top: 34px; justify-content: center; }
.hero-meta { margin-top: 26px; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.hero-note { margin-top: 18px; font-size: 13.5px; color: var(--ink-3); }

.stat-strip { margin-top: 58px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
.stat-strip b { display: block; font-size: clamp(26px, 3vw, 38px); color: var(--ink); letter-spacing: -.02em; }
.stat-strip b i { font-style: normal; color: var(--primary); }
.stat-strip span { font-size: 13.5px; color: var(--ink-3); }
.stat-strip.dark b { color: #fff; } .stat-strip.dark span { color: #94a3b8; }

/* ---------- 8. Cards ---------- */
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; transition: all .2s ease; position: relative;
}
.card:hover { box-shadow: var(--shadow-lg); border-color: #cbd5e1; transform: translateY(-3px); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--ink-3); font-size: 14.5px; }

.product-card { display: flex; flex-direction: column; }
.pc-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.pc-icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 24px; background: var(--blue-light); }
.pc-flag { font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.flag-hot { background: #fef2f2; color: var(--red); border: 1px solid #fecaca; }
.flag-new { background: var(--green-light); color: var(--green); border: 1px solid #a7f3d0; }
.flag-beta { background: var(--amber-light); color: #b45309; border: 1px solid #fde68a; }
.product-card .pc-desc { flex: 1; }
.pc-scene { margin: 14px 0; padding: 12px 14px; background: var(--bg-soft); border-radius: 10px; font-size: 13.5px; color: var(--ink-2); }
.pc-scene b { display: block; font-size: 12px; color: var(--ink-3); margin-bottom: 4px; letter-spacing: .05em; }
.pc-stats { display: flex; gap: 14px; font-size: 12.5px; color: var(--ink-3); padding: 12px 0; border-top: 1px dashed var(--line); flex-wrap: wrap; }
.pc-links { display: flex; align-items: center; gap: 16px; margin-top: auto; }

.feature-card .fc-icon { width: 44px; height: 44px; border-radius: 11px; background: var(--blue-light); display: grid; place-items: center; font-size: 21px; margin-bottom: 14px; }
.feature-card h3 { font-size: 16.5px; }
.feature-card ul { margin-top: 10px; }
.feature-card ul li { font-size: 13.5px; color: var(--ink-3); padding-left: 18px; position: relative; margin: 5px 0; }
.feature-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700; }

.mini-card { padding: 20px; border-radius: 12px; border: 1px solid var(--line); background: #fff; }
.mini-card b { display: block; margin-bottom: 4px; font-size: 15px; }
.mini-card span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 9. Split sections ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.split.rev > :first-child { order: 2; }
.split h2 { margin-bottom: 16px; }
.split .lead { color: var(--ink-3); font-size: 16.5px; margin-bottom: 22px; }
.check-list li { position: relative; padding: 9px 0 9px 34px; color: var(--ink-2); font-size: 15.5px; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 8px; width: 22px; height: 22px;
  background: var(--green-light); color: var(--green); border-radius: 7px;
  display: grid; place-items: center; font-size: 13px; font-weight: 800;
}

/* ---------- 10. Mock browser window ---------- */
.mock {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-lg);
}
.mock-bar { height: 38px; background: var(--bg-softer); border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 7px; padding: 0 14px; }
.mock-bar i { width: 11px; height: 11px; border-radius: 50%; background: #e2e8f0; }
.mock-bar i:nth-child(1) { background: #fca5a5; } .mock-bar i:nth-child(2) { background: #fcd34d; } .mock-bar i:nth-child(3) { background: #86efac; }
.mock-url { margin-left: 10px; flex: 1; height: 22px; background: #fff; border: 1px solid var(--line); border-radius: 6px; font-size: 11px; color: var(--ink-3); display: flex; align-items: center; padding: 0 10px; font-family: var(--mono); }
.mock-body { padding: 18px; background: linear-gradient(180deg, #fbfdff, #f6f9ff); }
.sk-layout { display: grid; grid-template-columns: 150px 1fr; gap: 14px; min-height: 240px; }
.sk-side { background: #10203f; border-radius: 10px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.sk-side i { height: 12px; border-radius: 6px; background: rgba(148, 163, 184, .35); display: block; }
.sk-side i:first-child { background: rgba(147, 197, 253, .8); width: 60%; }
.sk-main { display: flex; flex-direction: column; gap: 12px; }
.sk-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.sk-stat { background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 10px; }
.sk-stat i { display: block; height: 8px; width: 55%; background: var(--bg-softer); border-radius: 4px; margin-bottom: 8px; }
.sk-stat b { display: block; height: 14px; width: 75%; background: linear-gradient(90deg, #bfdbfe, #ddd6fe); border-radius: 4px; }
.sk-chart { background: #fff; border: 1px solid var(--line); border-radius: 10px; flex: 1; padding: 12px; display: flex; align-items: flex-end; gap: 8px; }
.sk-chart i { flex: 1; border-radius: 5px 5px 0 0; background: linear-gradient(180deg, #93c5fd, #3b82f6); animation: pulsebar 2.4s ease-in-out infinite; }
@keyframes pulsebar { 0%, 100% { opacity: .65; } 50% { opacity: 1; } }
.ai-chat { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 12px; font-size: 12.5px; }
.ai-chat .q { background: var(--blue-light); color: var(--primary-deep); padding: 7px 11px; border-radius: 9px 9px 2px 9px; display: inline-block; font-weight: 600; }
.ai-chat .a { margin-top: 9px; color: var(--ink-2); padding-left: 4px; }
.ai-chat .a b { color: var(--green); }

/* ---------- 11. Platform strip ---------- */
.platform-band {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 26px;
  padding: 22px 26px; background: #fff; border: 1px solid var(--line); border-radius: 16px;
  box-shadow: var(--shadow);
}
.platform-band span { font-weight: 700; font-size: 15.5px; color: var(--ink-2); display: inline-flex; align-items: center; gap: 8px; }
.platform-band span::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, var(--primary), var(--indigo)); }

/* ---------- 12. Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 720px; }
.tbl th, .tbl td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl thead th { background: var(--bg-soft); font-size: 13.5px; letter-spacing: .03em; color: var(--ink-3); font-weight: 700; white-space: nowrap; }
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl tbody tr:hover td { background: #fafcff; }
.tbl td.dim { color: var(--ink-3); }
.col-hl { background: #fffdf5 !important; }
.tbl thead th.col-hl { color: #b45309; background: var(--amber-light); }

/* compare page big table */
.compare-table th:first-child, .compare-table td:first-child { font-weight: 600; color: var(--ink); width: 170px; }
.compare-table td { font-size: 14px; }
.compare-table .yes { color: var(--green); font-weight: 700; }
.compare-table .no { color: #cbd5e1; font-weight: 700; }
.compare-table td small { display: block; color: var(--ink-3); font-weight: 400; }

/* ---------- 13. Steps ---------- */
.steps { counter-reset: step; display: grid; gap: 0; }
.steps.horiz { grid-template-columns: repeat(3, 1fr); gap: 26px; }
.step { position: relative; padding: 0 0 30px 62px; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0; width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--indigo)); color: #fff;
  font-weight: 800; font-size: 17px; display: grid; place-items: center; box-shadow: 0 6px 14px -6px rgba(37, 99, 235, .5);
}
.step:not(:last-child)::after { content: ""; position: absolute; left: 19px; top: 46px; bottom: 6px; width: 2px; background: repeating-linear-gradient(180deg, var(--line) 0 5px, transparent 5px 10px); }
.step h4 { font-size: 16.5px; margin-bottom: 6px; }
.step p { color: var(--ink-3); font-size: 14.5px; }
.step .step-link { font-size: 14px; font-weight: 600; }

/* horizontal steps */
.steps-h { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.step-h { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.step-h .num { width: 36px; height: 36px; border-radius: 10px; background: var(--blue-light); color: var(--primary-dark); font-weight: 800; display: grid; place-items: center; margin-bottom: 12px; }
.step-h h4 { font-size: 15.5px; margin-bottom: 6px; }
.step-h p { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 14. Pricing cards ---------- */
.pricing { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: stretch; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; display: flex; flex-direction: column; transition: all .2s; }
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.price-card.hot { border: 2px solid var(--primary); position: relative; }
.price-card.pro { background: linear-gradient(180deg, #101a2e, #0b1220); color: #cbd5e1; border: none; }
.price-card.pro h3 { color: #fff; }
.price-card .tag { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); font-size: 12px; font-weight: 700; background: var(--primary); color: #fff; padding: 3px 14px; border-radius: 999px; white-space: nowrap; }
.price-card h3 { font-size: 17px; }
.price-num { margin: 14px 0 4px; font-size: 34px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.price-num i { font-style: normal; font-size: 15px; font-weight: 500; color: var(--ink-3); }
.price-desc { font-size: 13.5px; color: var(--ink-3); min-height: 40px; }
.price-card ul { margin: 18px 0 22px; flex: 1; }
.price-card ul li { font-size: 13.5px; padding: 6px 0 6px 26px; position: relative; color: var(--ink-2); }
.price-card ul li::before { content: "✓"; position: absolute; left: 2px; color: var(--green); font-weight: 700; }
.price-card ul li.no::before { content: "—"; color: #cbd5e1; }
.price-card.pro ul li { color: #cbd5e1; }

/* ---------- 15. FAQ ---------- */
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: 12px; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 17px 52px 17px 20px; font-weight: 600; font-size: 15.5px; list-style: none; position: relative; user-select: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-size: 21px; color: var(--ink-3); transition: transform .2s; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] summary { color: var(--primary-dark); }
.faq-body { padding: 0 20px 18px; color: var(--ink-3); font-size: 14.5px; }
.faq-body a { font-weight: 600; }
.faq-cols { columns: 1; }

/* ---------- 16. Code blocks ---------- */
.codeblock { background: #0b1220; color: #cbd5e1; border-radius: 12px; padding: 18px 20px; font-family: var(--mono); font-size: 13.5px; line-height: 1.75; overflow-x: auto; position: relative; }
.codeblock .cm { color: #64748b; }
.codeblock .k { color: #93c5fd; }
.codeblock .s { color: #86efac; }
.codeblock .fn { color: #fbbf24; }
.code-title { font-size: 12px; color: #94a3b8; background: rgba(148, 163, 184, .12); padding: 8px 20px; border-radius: 12px 12px 0 0; font-family: var(--mono); display: block; }
.codeblock.with-title { border-radius: 0 0 12px 12px; }

/* ---------- 17. Callouts ---------- */
.callout { border-radius: 12px; padding: 18px 20px; font-size: 14.5px; display: flex; gap: 12px; align-items: flex-start; border: 1px solid; }
.callout .co-icon { font-size: 19px; line-height: 1.4; }
.callout-info { background: var(--blue-light); border-color: #bfdbfe; color: #1e40af; }
.callout-tip { background: var(--green-light); border-color: #a7f3d0; color: #065f46; }
.callout-warn { background: var(--amber-light); border-color: #fde68a; color: #92400e; }
.callout b { font-weight: 700; }
.callout p + p { margin-top: 6px; }

/* conversion callout */
.callout-cta { background: linear-gradient(135deg, #eff6ff, #eef2ff); border: 1px dashed #93c5fd; }
.callout-cta .co-body b { display: block; font-size: 15.5px; color: var(--ink); margin-bottom: 3px; }
.callout-cta .co-body p { color: var(--ink-3); font-size: 13.5px; }

/* ---------- 18. CTA banners ---------- */
.cta-banner {
  border-radius: 22px; padding: 54px 40px; text-align: center; position: relative; overflow: hidden;
  background:
    radial-gradient(600px 260px at 82% -20%, rgba(245, 158, 11, .25), transparent 60%),
    radial-gradient(700px 320px at 10% 110%, rgba(79, 70, 229, .35), transparent 60%),
    linear-gradient(135deg, #0b1220, #16224a);
  color: #e2e8f0;
}
.cta-banner h2 { color: #fff; }
.cta-banner p { max-width: 640px; margin: 14px auto 0; color: #94a3b8; font-size: 16px; }
.cta-banner .btn-row { margin-top: 28px; justify-content: center; }
.cta-banner .fine-print { margin-top: 16px; font-size: 12.5px; color: #64748b; }

.cta-inline { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; background: linear-gradient(120deg, var(--blue-light), #eef2ff); border: 1px solid #bfdbfe; border-radius: var(--radius); padding: 24px 28px; }
.cta-inline b { font-size: 17px; display: block; }
.cta-inline span { color: var(--ink-3); font-size: 14px; }

/* ---------- 19. Footer ---------- */
.site-footer { background: var(--dark); color: #94a3b8; margin-top: 0; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr; gap: 36px; padding: 58px 0 42px; }
.footer-brand img { width: 38px; height: 38px; border-radius: 9px; }
.footer-brand .logo { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; max-width: 280px; }
.footer-col h5 { color: #e2e8f0; font-size: 14px; margin-bottom: 16px; letter-spacing: .02em; }
.footer-col li { margin: 9px 0; }
.footer-col a { color: #94a3b8; font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-qr { display: flex; gap: 16px; }
.footer-qr figure { text-align: center; }
.footer-qr img { width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 4px; }
.footer-qr figcaption { font-size: 12px; margin-top: 6px; color: #94a3b8; }
.footer-bottom { border-top: 1px solid rgba(148, 163, 184, .15); padding: 20px 0; display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 13px; }
.footer-bottom a { color: #94a3b8; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }

/* ---------- 20. Forms ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--ink-2); }
.form-field label i { color: var(--red); font-style: normal; }
.form-field input, .form-field select, .form-field textarea {
  font-family: inherit; font-size: 14.5px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 9px;
  background: #fff; color: var(--ink); transition: border .15s; width: 100%;
}
.form-field textarea { resize: vertical; min-height: 110px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .12); }
.form-note { font-size: 12.5px; color: var(--ink-3); }

/* ---------- 21. QR panels ---------- */
.qr-panel { display: flex; gap: 20px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.qr-panel img { width: 128px; height: 128px; border-radius: 10px; border: 1px solid var(--line); }
.qr-panel b { display: block; font-size: 15.5px; margin-bottom: 5px; }
.qr-panel p { font-size: 13.5px; color: var(--ink-3); }
.qr-steps { margin-top: 10px; font-size: 13px; color: var(--ink-2); }
.qr-steps li { padding-left: 20px; position: relative; margin: 3px 0; }
.qr-steps li::before { content: attr(data-n); position: absolute; left: 0; font-weight: 700; color: var(--primary); }

/* ---------- 22. Blog / doc cards ---------- */
.post-card { display: flex; flex-direction: column; }
.post-meta { display: flex; gap: 12px; font-size: 12.5px; color: var(--ink-3); margin: 10px 0 8px; }
.post-card h3 { font-size: 16.5px; line-height: 1.5; }
.post-card h3 a { color: var(--ink); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { flex: 1; }
.doc-grid .doc-card { display: flex; gap: 14px; align-items: flex-start; }
.doc-card .dc-icon { flex: none; width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; font-size: 20px; }

/* article */
.article { max-width: 800px; margin: 0 auto; }
.article h1 { font-size: clamp(26px, 3.4vw, 38px); margin: 14px 0 10px; }
.article .article-meta { color: var(--ink-3); font-size: 13.5px; display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.article h2 { font-size: 24px; margin: 40px 0 14px; padding-top: 10px; }
.article h3 { font-size: 18.5px; margin: 28px 0 10px; }
.article p, .article ul, .article ol { margin-bottom: 14px; color: var(--ink-2); }
.article ul { list-style: disc; padding-left: 22px; }
.article ol { list-style: decimal; padding-left: 22px; }
.article li { margin: 5px 0; }
.article blockquote { border-left: 3px solid var(--primary); background: var(--bg-soft); padding: 12px 18px; border-radius: 0 10px 10px 0; color: var(--ink-3); margin: 18px 0; }
.article pre { margin: 16px 0; }
.article table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; }
.article th, .article td { border: 1px solid var(--line); padding: 9px 13px; text-align: left; }
.article th { background: var(--bg-soft); }

/* ---------- 23. Solutions page hero panels ---------- */
.sol-hero { border-radius: 20px; padding: 46px 44px; color: #e2e8f0; position: relative; overflow: hidden; }
.sol-hero.ecom { background: linear-gradient(130deg, #0b1220, #14306e 70%, #1d4ed8); }
.sol-hero.retail { background: linear-gradient(130deg, #0b1220, #064e3b 65%, #059669); }
.sol-hero.cb { background: linear-gradient(130deg, #0b1220, #4c1d95 70%, #7c3aed); }
.sol-hero h1 { color: #fff; }
.sol-hero p { color: #cbd5e1; max-width: 620px; margin-top: 12px; font-size: 16.5px; }
.sol-hero .chips { margin-top: 22px; }
.sol-hero .chip { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.22); color: #e2e8f0; }
.pain-gain { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.pain-box, .gain-box { border-radius: var(--radius); padding: 26px; border: 1px solid var(--line); }
.pain-box { background: #fef7f7; border-color: #fecaca; }
.gain-box { background: #f0fdf4; border-color: #bbf7d0; }
.pain-box h3, .gain-box h3 { font-size: 16px; margin-bottom: 12px; }
.pain-box li, .gain-box li { font-size: 14px; padding: 6px 0 6px 26px; position: relative; color: var(--ink-2); }
.pain-box li::before { content: "✕"; position: absolute; left: 2px; color: var(--red); font-weight: 700; }
.gain-box li::before { content: "✓"; position: absolute; left: 2px; color: var(--green); font-weight: 700; }

/* ---------- 24. Timeline (updates) ---------- */
.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding-bottom: 26px; }
.tl-item::before { content: ""; position: absolute; left: -26px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--primary); }
.tl-item time { font-size: 13px; color: var(--ink-3); font-family: var(--mono); }
.tl-item h4 { margin: 4px 0 6px; font-size: 16px; }
.tl-item p { color: var(--ink-3); font-size: 14px; }

/* ---------- 25. Utilities ---------- */
.mt-0 { margin-top: 0 !important; } .mt-1 { margin-top: 10px; } .mt-2 { margin-top: 20px; } .mt-3 { margin-top: 30px; } .mt-4 { margin-top: 40px; }
.mb-1 { margin-bottom: 10px; } .mb-2 { margin-bottom: 20px; } .mb-3 { margin-bottom: 30px; }
.tc { text-align: center; }
.muted { color: var(--ink-3); }
.small { font-size: 13px; }
.strong { font-weight: 700; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.divider { height: 1px; background: var(--line); margin: 44px 0; border: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* sticky mobile cta bar */
.mobile-cta { display: none; }

/* ---------- 26. Responsive ---------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pricing { grid-template-columns: repeat(2, 1fr); }
  .split, .split.rev { grid-template-columns: 1fr; gap: 36px; }
  .split.rev > :first-child { order: 0; }
  .footer-top { grid-template-columns: 1fr 1fr 1fr; }
  .steps.horiz { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .section { padding: 56px 0; }
  .main-nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; padding: 12px 20px 20px; gap: 2px;
    box-shadow: var(--shadow-lg); max-height: calc(100vh - 64px); overflow-y: auto;
  }
  body.nav-open .main-nav { display: flex; }
  .main-nav > li > a { padding: 12px 10px; font-size: 16px; }
  .dropdown { position: static; transform: none; width: auto; opacity: 1; visibility: visible; box-shadow: none; border: none; padding: 0 0 0 14px; display: none; }
  .has-dropdown.open .dropdown { display: block; }
  .has-dropdown > a::after { content: "▸"; float: right; }
  .has-dropdown.open > a::after { content: "▾"; }
  .header-actions .btn-outline { display: none; }
  .nav-toggle { display: block; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .pain-gain { grid-template-columns: 1fr; }
  .mobile-cta {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
    background: rgba(255, 255, 255, .97); backdrop-filter: blur(8px); border-top: 1px solid var(--line);
    padding: 10px 14px; gap: 10px;
  }
  .mobile-cta .btn { flex: 1; font-size: 14px; padding: 10px 8px; }
  body:has(.mobile-cta) { padding-bottom: 66px; }
}

@media (max-width: 620px) {
  .container { width: calc(100% - 36px); }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: 1fr; }
  .hero { padding: 56px 0 54px; }
  .hero-actions .btn { width: 100%; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 22px; }
  .sol-hero { padding: 34px 24px; }
  .cta-inline { flex-direction: column; align-items: stretch; text-align: center; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .footer-qr { flex-wrap: wrap; }
}