:root {
  --ink: #173247;
  --ink-soft: #ffffff;
  --panel: #ffffff;
  --line: #cfdddf;
  --paper: #f5f8f8;
  --white: #173247;
  --muted: #536978;
  --text: #263f50;
  --cyan: #08796a;
  --cyan-dark: #e5f5f1;
  --amber: #9a5a06;
  --red: #b83f48;
  --shadow: 0 18px 55px rgba(26, 65, 72, .12);
  --radius: 20px;
  color-scheme: light;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); min-width: 320px; }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(rgba(8, 121, 106, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 121, 106, .035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}
a { color: inherit; }
button, input { font: inherit; }
button, a, summary { touch-action: manipulation; -webkit-tap-highlight-color: rgba(8, 121, 106, .12); }
button:focus-visible, a:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 3px;
}
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 20; background: var(--cyan); color: #fff; padding: 12px 16px; font-weight: 800; }
.skip-link:focus { top: 16px; }

.site-header {
  width: min(1180px, calc(100% - 40px));
  min-height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(144, 161, 181, .2);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 11px; background: var(--cyan); color: #fff;
  font-size: 22px; font-weight: 950; letter-spacing: -.08em;
  box-shadow: inset 0 -6px 12px rgba(7, 17, 31, .18);
}
.brand-copy { display: grid; gap: 1px; }
.brand-copy strong { font-size: 18px; color: var(--white); letter-spacing: .04em; }
.brand-copy small { color: var(--muted); font-size: 10px; letter-spacing: .11em; text-transform: uppercase; }
.site-header nav { display: flex; gap: 30px; }
.site-header nav a { text-decoration: none; color: #40596a; font-size: 14px; }
.site-header nav a:hover { color: var(--cyan); }
.header-action { padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; font-size: 13px; font-weight: 750; }
.header-action:hover { border-color: var(--cyan); color: var(--cyan); }

main { overflow-x: clip; }
h1, h2, h3, h4 { text-wrap: balance; }
h2[id], h3[id], section[id] { scroll-margin-top: 24px; }
.hero {
  width: min(1180px, calc(100% - 40px));
  min-height: 650px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 72px;
  align-items: center;
  padding: 82px 0 92px;
  position: relative;
}
.hero::after {
  content: ""; position: absolute; width: 520px; height: 520px; right: -260px; top: 30px; border-radius: 50%;
  background: rgba(8, 121, 106, .06); filter: blur(3px); box-shadow: 0 0 130px rgba(8, 121, 106, .06);
}
.eyebrow, .section-index { margin: 0 0 20px; color: var(--cyan); font-size: 11px; font-weight: 850; letter-spacing: .19em; }
.eyebrow { display: flex; align-items: center; gap: 10px; }
.eyebrow span { width: 26px; height: 1px; background: var(--cyan); }
h1 { margin: 0; color: var(--white); font-size: clamp(48px, 6vw, 78px); line-height: 1.02; letter-spacing: -.055em; font-weight: 880; }
.hero-lead { max-width: 610px; margin: 28px 0 0; color: #536978; font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; gap: 12px; margin: 34px 0 42px; }
.button {
  min-height: 48px; padding: 0 22px; border-radius: 12px; border: 1px solid transparent;
  display: inline-flex; align-items: center; justify-content: center; cursor: pointer; text-decoration: none;
  font-weight: 820; transition: transform .18s ease, background .18s ease, border-color .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--cyan); color: #fff; box-shadow: 0 12px 26px rgba(8, 121, 106, .18); }
.button-primary:hover { background: #06695c; }
.button-primary:disabled { cursor: not-allowed; opacity: .5; transform: none; box-shadow: none; }
.button-quiet { background: #fff; color: var(--ink); border-color: var(--line); }
.button-full { width: 100%; }
.trust-list { margin: 0; padding: 0; display: flex; list-style: none; }
.trust-list li { min-width: 116px; padding-right: 24px; margin-right: 24px; border-right: 1px solid var(--line); display: grid; gap: 5px; }
.trust-list li:last-child { border: 0; }
.trust-list strong { color: var(--white); font-size: 17px; }
.trust-list span { color: var(--muted); font-size: 12px; }

.dispatch-card { position: relative; z-index: 1; border: 1px solid var(--line); border-radius: 24px; padding: 24px; background: linear-gradient(145deg, #ffffff, #edf8f5); box-shadow: var(--shadow); }
.dispatch-card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: linear-gradient(115deg, rgba(255,255,255,.06), transparent 30%); }
.dispatch-top { display: flex; justify-content: space-between; color: var(--muted); font: 750 10px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .14em; }
.live-dot { color: var(--cyan); }
.live-dot::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(98, 243, 213, .1); }
.mail-route { position: relative; height: 112px; margin: 24px 0 4px; }
.route-line { position: absolute; left: 8%; right: 8%; top: 50%; height: 2px; background: linear-gradient(90deg, var(--cyan), var(--amber)); }
.route-line::after { content: ""; position: absolute; top: -3px; width: 42px; height: 8px; border-radius: 99px; background: white; box-shadow: 0 0 24px var(--cyan); animation: dispatch 3.2s ease-in-out infinite; }
.route-node { position: absolute; top: 50%; width: 42px; height: 42px; margin-top: -21px; display: grid; place-items: center; border: 1px solid #9bb9b5; border-radius: 50%; background: var(--ink-soft); color: var(--white); font: 800 11px ui-monospace, monospace; }
.node-one { left: 2%; }.node-two { left: calc(50% - 21px); }.node-three { right: 2%; border-color: var(--amber); }
.dispatch-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 0; margin: 0 0 22px; list-style: none; }
.dispatch-steps li { display: grid; gap: 5px; }
.dispatch-steps span { color: var(--muted); font-size: 11px; }
.dispatch-steps strong { color: var(--white); font-size: 13px; }
.format-window { padding: 17px; border-radius: 13px; background: #f2faf8; border: 1px solid #c8e6df; display: grid; gap: 8px; }
.format-window span { color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .15em; }
.format-window code { color: var(--cyan); font-size: 12px; overflow-wrap: anywhere; }

.section { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 96px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 38px; }
.section-heading h2, .query-intro h2, .faq-section h2 { margin: 0; color: var(--white); font-size: clamp(32px, 4vw, 49px); line-height: 1.1; letter-spacing: -.04em; }
.section-heading > p { max-width: 420px; margin: 0; color: var(--muted); line-height: 1.7; }
.products-section { border-top: 1px solid rgba(144, 161, 181, .16); }
.product-groups { display: grid; gap: 54px; }
.product-group { display: grid; gap: 20px; }
.product-group-heading { display: flex; justify-content: space-between; align-items: end; gap: 28px; padding-bottom: 16px; border-bottom: 1px solid rgba(144, 161, 181, .16); }
.product-group-heading h3 { margin: 5px 0 0; color: var(--white); font-size: 25px; letter-spacing: -.025em; }
.product-group-heading p { max-width: 500px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; text-align: right; }
.product-group-eyebrow { color: var(--cyan); font: 800 9px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .16em; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-group[data-layout="four"] .product-grid { grid-template-columns: repeat(4, 1fr); }
.product-card { min-height: 320px; padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--ink-soft); box-shadow: 0 10px 30px rgba(29, 68, 75, .06); display: flex; flex-direction: column; position: relative; overflow: hidden; }
.product-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: var(--cyan); opacity: .85; }
.product-card.mode-manual-pending::before { background: var(--amber); }
.product-card.mode-api-pending::before { background: #82a9ff; }
.product-card::after { content: attr(data-index); position: absolute; right: 20px; top: 12px; color: rgba(8, 121, 106, .07); font-size: 74px; font-weight: 900; }
.product-card:hover { border-color: #74ada5; }
.product-card-top { min-height: 54px; display: flex; align-items: start; justify-content: space-between; gap: 8px; position: relative; z-index: 1; }
.product-status { align-self: flex-start; border-radius: 999px; padding: 6px 9px; background: var(--cyan-dark); color: var(--cyan); font-size: 10px; font-weight: 850; letter-spacing: .08em; }
.product-status.sold-out { background: rgba(255, 138, 135, .1); color: var(--red); }
.delivery-badge { max-width: 118px; color: #617887; font-size: 10px; line-height: 1.35; text-align: right; }
.product-card h4 { max-width: 94%; margin: 22px 0 10px; color: var(--white); font-size: 19px; line-height: 1.3; letter-spacing: -.015em; }
.product-detail-link { color: inherit; text-decoration: none; }
.product-detail-link::after { content: ""; position: absolute; inset: 0; z-index: 1; }
.product-detail-link:focus-visible::after { outline: 3px solid var(--cyan); outline-offset: -5px; border-radius: var(--radius); }
.product-description { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.product-bottom { margin-top: auto; display: flex; align-items: end; justify-content: space-between; gap: 16px; position: relative; z-index: 2; }
.product-price { display: grid; gap: 3px; }
.product-price span { color: var(--muted); font-size: 11px; }
.product-price strong { color: var(--white); font-size: 26px; }
.buy-button { min-height: 42px; padding: 0 16px; border: 0; border-radius: 10px; background: var(--cyan); color: var(--ink); font-weight: 850; cursor: pointer; }
.buy-button { color: #fff; }
.buy-button.detail-button { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.buy-button:disabled { background: #d9e2e5; color: #667986; cursor: not-allowed; }
.product-skeleton { height: 292px; border-radius: var(--radius); background: linear-gradient(100deg, #edf2f3 20%, #f9fbfb 40%, #edf2f3 60%); background-size: 200% 100%; animation: loading 1.5s infinite; }
.loading-grid { grid-template-columns: repeat(3, 1fr); }
.empty-products { grid-column: 1 / -1; padding: 50px; text-align: center; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); }

.choice-section { border-top: 1px solid rgba(144, 161, 181, .16); }
.choice-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.choice-grid article { min-height: 245px; padding: 30px 28px; border-right: 1px solid var(--line); }
.choice-grid article:last-child { border-right: 0; }
.choice-grid span { color: var(--cyan); font-size: 11px; font-weight: 800; }
.choice-grid h3 { margin: 34px 0 12px; color: var(--white); font-size: 21px; }
.choice-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.text-link { display: inline-block; margin-top: 24px; color: var(--cyan); font-weight: 750; text-underline-offset: 5px; }

.process-section { width: 100%; padding-left: max(20px, calc((100% - 1180px) / 2)); padding-right: max(20px, calc((100% - 1180px) / 2)); background: #eaf5f2; color: #243344; }
.process-section .section-index { color: var(--cyan); }
.process-section .section-heading h2 { color: var(--ink); }
.process-section .section-heading > p { color: #607080; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid #cdd7dc; border-bottom: 1px solid #cdd7dc; }
.process-grid article { padding: 34px 36px 40px 0; margin-right: 36px; border-right: 1px solid #cdd7dc; }
.process-grid article:last-child { border: 0; margin-right: 0; }
.process-grid span { color: var(--cyan); font: 800 12px ui-monospace, monospace; }
.process-grid h3 { margin: 38px 0 12px; color: var(--ink); font-size: 22px; }
.process-grid p { margin: 0; color: #5f6e7b; line-height: 1.75; }

.query-section { display: grid; grid-template-columns: .92fr 1.08fr; gap: 70px; align-items: start; }
.query-intro p:not(.section-index) { color: var(--muted); line-height: 1.8; }
.recent-order { margin-top: 12px; border: 0; background: none; color: var(--cyan); padding: 0; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.query-form { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); box-shadow: 0 10px 30px rgba(29, 68, 75, .06); display: grid; gap: 18px; }
label { display: grid; gap: 8px; color: #40596a; font-size: 12px; font-weight: 700; }
input { width: 100%; height: 48px; border: 1px solid #bfd0d4; border-radius: 10px; background: #fff; color: var(--ink); padding: 0 14px; }
input::placeholder { color: #788b97; }
.query-result { grid-column: 1 / -1; padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.order-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.order-summary div { padding: 16px; border-radius: 12px; background: #f1f6f6; }
.order-summary span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 11px; }
.order-summary strong { color: var(--white); overflow-wrap: anywhere; }
.delivery-list { display: grid; gap: 10px; margin-top: 20px; }
.delivery-item { padding: 16px; border: 1px solid #b9ddd5; border-radius: 10px; background: #eff9f6; color: var(--cyan); font: 12px/1.65 ui-monospace, monospace; overflow-wrap: anywhere; }

.assurance-section { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding-top: 0; }
.assurance-section article { padding: 28px; border: 1px solid var(--line); border-left: 3px solid var(--cyan); background: #fff; }
.assurance-section span { color: var(--cyan); font-size: 10px; font-weight: 850; letter-spacing: .12em; }
.assurance-section h3 { margin: 24px 0 10px; color: var(--white); }
.assurance-section p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 14px; }
.faq-section { display: grid; grid-template-columns: .72fr 1.28fr; gap: 80px; border-top: 1px solid rgba(144,161,181,.16); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 23px 4px; color: var(--white); cursor: pointer; font-weight: 750; }
.faq-list summary::marker { color: var(--cyan); }
.faq-list p { margin: 0; padding: 0 4px 22px; color: var(--muted); line-height: 1.75; }

footer { width: min(1180px, calc(100% - 40px)); min-height: 150px; margin: 0 auto; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12px; }
.footer-brand { opacity: .8; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--cyan); }

/* Shared inner-page system */
.inner-main { width: min(1180px, calc(100% - 40px)); min-height: calc(100vh - 240px); margin: 0 auto; padding: 38px 0 110px; }
.breadcrumbs { display: flex; gap: 10px; color: var(--muted); font-size: 12px; }
.breadcrumbs a { color: var(--cyan); text-decoration: none; }
.inner-hero { max-width: 820px; padding: 74px 0 66px; }
.inner-hero h1 { margin-top: 18px; }
.inner-hero > p:last-child { max-width: 680px; margin: 24px 0 0; color: var(--muted); font-size: 17px; line-height: 1.8; }
.inner-content { display: grid; gap: 42px; }
.content-grid { display: grid; gap: 16px; }
.content-grid.two { grid-template-columns: repeat(2, 1fr); }
.content-grid.three { grid-template-columns: repeat(3, 1fr); }
.content-grid article, .notice, .blog-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); }
.content-grid b, .listing-group > header span, .blog-card > span { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .14em; }
.content-grid h2, .prose h2, .listing-group h2, .blog-card h2 { color: var(--white); }
.content-grid p, .prose p, .notice p, .blog-card p { color: var(--muted); line-height: 1.8; }
.content-grid ul, .product-detail aside ul { margin: 16px 0 0; padding-left: 20px; color: var(--muted); line-height: 1.85; }
.content-grid li + li, .product-detail aside li + li { margin-top: 6px; }
.format-code { display: block; margin-top: 22px; padding: 18px; border: 1px solid #bddfd7; border-radius: 12px; color: var(--cyan); background: #eff9f6; overflow-wrap: anywhere; }
.notice { border-left: 3px solid var(--amber); }
.notice strong { color: var(--amber); }
.prose { max-width: 820px; }
.prose h2 { margin: 38px 0 10px; font-size: 25px; }
.prose h2:first-child { margin-top: 0; }
.content-faq { max-width: 900px; }
.content-faq details { border-bottom: 1px solid var(--line); }
.content-faq summary { padding: 23px 4px; color: var(--white); font-weight: 760; cursor: pointer; }
.content-faq summary::marker { color: var(--cyan); }
.content-faq p { padding: 0 4px 22px; color: var(--muted); line-height: 1.8; }
.listing-group { display: grid; gap: 22px; }
.listing-group + .listing-group { margin-top: 34px; }
.listing-group > header { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-bottom: 17px; border-bottom: 1px solid var(--line); }
.listing-group > header h2 { margin: 6px 0 0; }
.listing-group > header p { max-width: 480px; margin: 0; color: var(--muted); text-align: right; }
.listing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.listing-card { min-height: 310px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); display: flex; flex-direction: column; }
.listing-card > div { display: flex; justify-content: space-between; align-items: start; gap: 12px; color: var(--muted); font-size: 10px; }
.listing-card h2 { margin: 30px 0 10px; font-size: 20px; line-height: 1.35; }
.listing-card h2 a, .blog-card h2 a { color: var(--white); text-decoration: none; }
.listing-card h2 a:hover, .blog-card h2 a:hover { color: var(--cyan); }
.listing-card > p { margin: 0; color: var(--muted); line-height: 1.75; font-size: 13px; }
.listing-card footer { width: auto; min-height: 0; margin: auto 0 0; padding-top: 26px; border: 0; display: flex; flex-direction: row; align-items: center; }
.listing-card footer strong { color: var(--white); font-size: 24px; }
.listing-card footer .button { min-height: 40px; padding: 0 14px; font-size: 12px; }
.product-detail { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.product-detail-main, .product-detail aside { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); }
.product-detail h2 { color: var(--white); }
.product-detail-main > h2 { margin: 30px 0 12px; font-size: 30px; }
.product-detail-main > p, .product-detail aside li { color: var(--muted); line-height: 1.8; }
.product-detail dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 34px 0; }
.product-detail dl div { padding: 16px; border-radius: 12px; background: #f0f5f5; }
.product-detail dt { color: var(--muted); font-size: 11px; }
.product-detail dd { margin: 8px 0 0; color: var(--white); font-weight: 800; }
.product-detail aside ul { padding-left: 20px; }
.product-detail aside > a { color: var(--cyan); }
.product-detail aside > p { color: var(--muted); line-height: 1.8; }
.product-answers article { min-height: 240px; }
.product-answers b { display: block; margin-bottom: 18px; font-size: 12px; }

/* V0.13: product detail pages are purchase surfaces first, guides second. */
.commerce-product {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr);
  gap: 24px;
  align-items: start;
}
.commerce-visual,
.commerce-buy {
  border: 1px solid #bfd3d7;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(23, 50, 71, .10);
}
.commerce-visual {
  min-height: 650px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  background:
    radial-gradient(circle at 88% 14%, rgba(42, 168, 149, .16), transparent 30%),
    linear-gradient(145deg, #eff9f6 0%, #ffffff 60%);
}
.commerce-visual::after {
  content: "";
  position: absolute;
  width: 290px;
  height: 290px;
  right: -120px;
  bottom: -135px;
  border: 1px solid rgba(8, 121, 106, .13);
  border-radius: 50%;
}
.commerce-visual-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--cyan);
  font: 850 11px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .14em;
}
.commerce-visual .product-status { padding: 7px 10px; border-radius: 999px; letter-spacing: 0; }
.account-pack {
  position: relative;
  z-index: 1;
  margin: 82px 0 58px;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 22px;
  align-items: center;
}
.account-pack-icon {
  width: 88px;
  height: 88px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  background: var(--cyan);
  color: #fff;
  font-size: 46px;
  font-weight: 950;
  box-shadow: 0 18px 30px rgba(8, 121, 106, .22);
}
.account-pack div { display: grid; gap: 8px; }
.account-pack small { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .13em; }
.account-pack strong { max-width: 480px; color: var(--ink); font-size: clamp(27px, 3.2vw, 42px); line-height: 1.15; letter-spacing: -.04em; }
.account-pack p { margin: 0; color: var(--muted); }
.delivery-preview {
  position: relative;
  z-index: 1;
  padding: 22px;
  display: grid;
  gap: 10px;
  border: 1px solid #b9ddd5;
  border-radius: 16px;
  background: rgba(255,255,255,.82);
}
.delivery-preview span { color: var(--muted); font-size: 11px; }
.delivery-preview code { color: var(--cyan); font: 700 14px/1.6 ui-monospace, monospace; overflow-wrap: anywhere; }
.commerce-trust {
  position: relative;
  z-index: 1;
  margin: auto 0 0;
  padding: 32px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
}
.commerce-trust li { padding: 0 18px; display: grid; gap: 5px; border-right: 1px solid var(--line); }
.commerce-trust li:first-child { padding-left: 0; }
.commerce-trust li:last-child { border-right: 0; }
.commerce-trust strong { color: var(--ink); font-size: 17px; }
.commerce-trust span { color: var(--muted); font-size: 11px; }

.commerce-buy {
  padding: 34px;
  position: sticky;
  top: 18px;
}
.commerce-category { color: var(--cyan); font: 850 11px ui-monospace, monospace; letter-spacing: .12em; }
.commerce-buy h1 { margin: 18px 0 14px; color: var(--ink); font-size: clamp(34px, 4.2vw, 52px); line-height: 1.08; }
.commerce-description { margin: 0; color: var(--muted); line-height: 1.75; }
.commerce-price {
  margin: 28px 0 16px;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: end;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.commerce-price span { color: var(--muted); font-size: 12px; }
.commerce-price strong { color: var(--ink); font-size: 36px; letter-spacing: -.035em; }
.stock-line { margin-bottom: 24px; display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; }
.stock-line strong { color: var(--cyan); }
.stock-dot { width: 9px; height: 9px; border-radius: 50%; background: #12a886; box-shadow: 0 0 0 5px rgba(18,168,134,.11); }
.stock-dot.unavailable { background: var(--red); box-shadow: 0 0 0 5px rgba(184,63,72,.09); }
.commerce-label,
.detail-payment legend { display: block; margin: 0 0 9px; color: #40596a; font-size: 12px; font-weight: 750; }
.detail-quantity { display: grid; grid-template-columns: 48px 1fr 48px; }
.detail-quantity input {
  min-width: 0;
  height: 50px;
  border: 1px solid #b9cdd2;
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  text-align: center;
  font-weight: 800;
}
.detail-quantity button {
  border: 1px solid #b9cdd2;
  background: #edf5f4;
  color: var(--ink);
  cursor: pointer;
  font-size: 22px;
}
.detail-quantity button:first-child { border-radius: 12px 0 0 12px; border-right: 0; }
.detail-quantity button:last-child { border-radius: 0 12px 12px 0; border-left: 0; }
.detail-quantity button:hover:not(:disabled) { background: #dff1ed; color: var(--cyan); }
.detail-quantity button:disabled { cursor: not-allowed; color: #99a9b3; }
.detail-payment { margin: 22px 0 0; grid-template-columns: 1fr 1fr; }
.detail-payment legend { grid-column: 1 / -1; }
.detail-payment label {
  min-height: 64px;
  padding: 11px 13px;
  display: grid;
  grid-template-columns: auto 34px 1fr;
  align-items: center;
  gap: 9px;
  border: 1px solid #bfd0d4;
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
}
.detail-payment label:has(input:checked) { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(8,121,106,.09); background: #f3faf8; }
.detail-payment input { width: 16px; height: 16px; accent-color: var(--cyan); }
.detail-payment label > span:last-child { display: grid; gap: 2px; }
.detail-payment strong { color: var(--ink); font-size: 13px; }
.detail-payment small { color: var(--muted); font-size: 10px; }
.detail-total { margin: 24px 0 14px; padding-top: 20px; display: flex; justify-content: space-between; align-items: end; border-top: 1px solid var(--line); }
.detail-total span { color: var(--muted); font-size: 12px; }
.detail-total strong { color: var(--red); font-size: 32px; letter-spacing: -.03em; }
.detail-buy-button {
  width: 100%;
  min-height: 54px;
  border: 0;
  border-radius: 13px;
  background: var(--cyan);
  color: #fff;
  cursor: pointer;
  font-weight: 900;
  box-shadow: 0 13px 26px rgba(8,121,106,.2);
}
.detail-buy-button:hover:not(:disabled) { background: #06695c; transform: translateY(-1px); }
.detail-buy-button:disabled { background: #d9e2e5; color: #657986; cursor: not-allowed; box-shadow: none; }
.checkout-safety { margin: 13px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; text-align: center; }
.buy-conclusion { margin-top: 22px; padding: 18px; border-radius: 13px; background: #eff7f5; border-left: 3px solid var(--cyan); }
.buy-conclusion span { color: var(--cyan); font-size: 10px; font-weight: 850; }
.buy-conclusion p { margin: 8px 0; color: var(--text); font-size: 12px; line-height: 1.65; }
.buy-conclusion a { color: var(--cyan); font-size: 12px; }
.detail-order-result { display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; padding: 20px; border: 1px solid #b9ddd5; border-radius: 14px; background: #eff9f6; }
.detail-order-result[hidden] { display: none; }
.detail-order-result > strong { grid-column: 1 / -1; margin-bottom: 5px; color: var(--ink); }
.detail-order-result > span { grid-column: 1 / -1; color: var(--muted); font-size: 10px; }
.detail-order-result code { color: var(--cyan); overflow-wrap: anywhere; }
.detail-order-result button { border: 0; background: transparent; color: var(--amber); cursor: pointer; }
.detail-order-result .button { grid-column: 1 / -1; margin-top: 8px; }
.decision-table, .format-explainer, .timeline { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--ink-soft); }
.decision-table h2, .timeline h2 { margin: 0 0 24px; color: var(--white); font-size: 26px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; min-width: 760px; border-collapse: collapse; text-align: left; }
th, td { padding: 18px 16px; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.65; }
th { color: var(--cyan); font-size: 11px; letter-spacing: .08em; }
td { color: var(--muted); font-size: 13px; }
tbody tr:last-child td { border-bottom: 0; }
.format-explainer .format-code { margin: 0 0 24px; font-size: 15px; }
.format-parts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.format-parts article { padding: 20px; border-radius: 13px; background: #f0f5f5; }
.format-parts b { color: var(--white); }
.format-parts p { margin: 9px 0 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.timeline ol { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.timeline li { counter-increment: steps; display: grid; grid-template-columns: 42px 1fr; gap: 4px 16px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.timeline li:last-child { border-bottom: 0; }
.timeline li::before { content: counter(steps, decimal-leading-zero); grid-row: 1 / 3; color: var(--cyan); font: 800 12px ui-monospace, monospace; }
.timeline strong { color: var(--white); }
.timeline span { color: var(--muted); font-size: 13px; line-height: 1.7; }
.button-disabled { background: #d9e2e5; color: #657986; cursor: not-allowed; }
.standalone-query { grid-template-columns: .8fr 1.2fr; padding: 0; width: 100%; }
.standalone-query .query-result { grid-column: 1 / -1; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.blog-card h2 { margin: 24px 0 10px; }
.blog-card > a { color: var(--cyan); }
.not-found { display: flex; gap: 12px; }

.help-entry { display: grid; grid-template-columns: .78fr 1.22fr; gap: 68px; border-top: 1px solid rgba(144, 161, 181, .16); }
.help-entry-lead h2 { margin: 0; color: var(--white); font-size: clamp(34px, 4vw, 52px); line-height: 1.08; letter-spacing: -.045em; }
.help-entry-lead > p:not(.section-index) { margin: 24px 0 30px; color: var(--muted); line-height: 1.8; }
.help-entry-links { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.help-entry-links a { min-height: 180px; padding: 25px; display: grid; align-content: space-between; gap: 12px; text-decoration: none; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.help-entry-links a:nth-child(2n) { border-right: 0; }
.help-entry-links a:nth-child(n+3) { border-bottom: 0; }
.help-entry-links a:hover { background: #eff9f6; }
.help-entry-links span, .help-paths span { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .12em; }
.help-entry-links strong { color: var(--white); font-size: 17px; line-height: 1.45; }
.help-entry-links em { color: var(--muted); font-size: 12px; font-style: normal; }

.help-paths { display: grid; grid-template-columns: repeat(2, 1fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.help-paths > a { min-height: 230px; padding: 30px; display: grid; align-content: start; gap: 13px; text-decoration: none; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.help-paths > a:nth-child(2n) { border-right: 0; }
.help-paths > a:nth-child(n+3) { border-bottom: 0; }
.help-paths > a:hover { background: #eff9f6; }
.help-paths h2 { margin: 0; color: var(--white); font-size: 26px; }
.help-paths p { margin: 0; color: var(--muted); line-height: 1.75; }
.help-paths strong { margin-top: auto; color: var(--cyan); }
.support-strip { padding: 24px 28px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border: 1px solid #bddfd7; border-radius: 16px; background: #eff9f6; }
.support-strip div { display: grid; gap: 7px; }
.support-strip span { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .12em; }
.support-strip strong { color: var(--white); }
.article-next { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.article-next a { padding: 20px; border: 1px solid var(--line); border-radius: 13px; color: var(--cyan); text-decoration: none; background: #fff; }
.focus-part { box-shadow: inset 0 3px 0 var(--cyan); }

.purchase-read { margin-bottom: 20px; padding: 18px 22px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px; border: 1px solid #dfc79d; border-radius: 14px; background: #fff8ec; }
.purchase-read span { color: var(--amber); font: 800 10px ui-monospace, monospace; letter-spacing: .1em; }
.purchase-read strong { color: var(--white); font-size: 13px; }
.purchase-read a { color: var(--amber); font-size: 12px; }
.embedded-login { margin-top: 24px; }
.support-boundary, .related-block { display: grid; grid-template-columns: .7fr 1.3fr; gap: 48px; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.support-boundary h2, .related-block h2 { margin: 0; color: var(--white); font-size: 29px; line-height: 1.2; }
.support-boundary > div:last-child { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.support-boundary article { padding: 20px; border-left: 2px solid var(--cyan); background: #f2f7f7; }
.support-boundary article strong { color: var(--white); }
.support-boundary article p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.support-boundary article a { color: var(--cyan); font-size: 12px; }
.related-products { display: grid; gap: 9px; }
.related-products a { padding: 16px 18px; display: flex; justify-content: space-between; gap: 20px; border: 1px solid var(--line); border-radius: 11px; text-decoration: none; background: #f7fafa; }
.related-products a:hover { border-color: var(--cyan); }
.related-products span { color: var(--white); }
.related-products strong { color: var(--cyan); white-space: nowrap; }

.purchase-notice { width: min(680px, calc(100% - 28px)); max-height: calc(100vh - 28px); padding: 0; border: 1px solid var(--line); border-radius: 24px; background: #fff; color: var(--text); box-shadow: var(--shadow); }
.purchase-notice::backdrop { background: rgba(23, 50, 71, .45); backdrop-filter: blur(7px); }
.purchase-notice form { padding: 30px; }
.notice-head { display: flex; justify-content: space-between; align-items: center; }
.notice-head > span { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .14em; }
.purchase-notice h2 { margin: 20px 0 10px; color: var(--white); font-size: clamp(30px, 5vw, 44px); letter-spacing: -.04em; }
.notice-intro { margin: 0 0 20px; color: var(--muted); line-height: 1.75; }
.purchase-notice ol { margin: 0; padding: 0; list-style: none; counter-reset: notice; border-top: 1px solid var(--line); }
.purchase-notice li { counter-increment: notice; display: grid; grid-template-columns: 34px 1fr; gap: 5px 12px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.purchase-notice li::before { content: counter(notice, decimal-leading-zero); grid-row: 1 / 3; color: var(--cyan); font: 800 11px ui-monospace, monospace; }
.purchase-notice li strong { color: var(--white); }
.purchase-notice li span { color: var(--muted); font-size: 12px; line-height: 1.65; }
.notice-actions { margin-top: 22px; display: grid; grid-template-columns: .8fr 1.2fr; gap: 10px; }
.floating-help { position: fixed; right: 22px; bottom: 22px; z-index: 15; min-height: 46px; padding: 0 16px 0 7px; display: flex; align-items: center; gap: 9px; border: 1px solid #08796a; border-radius: 999px; background: #08796a; color: #fff; text-decoration: none; font-size: 12px; font-weight: 800; box-shadow: 0 12px 28px rgba(8,121,106,.24); }
.floating-help span { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: #fff; color: var(--cyan); font-size: 17px; }

.checkout-dialog { width: min(520px, calc(100% - 28px)); max-height: calc(100vh - 28px); overflow: auto; overscroll-behavior: contain; padding: 0; border: 1px solid var(--line); border-radius: 22px; background: #fff; color: var(--text); box-shadow: var(--shadow); }
.checkout-dialog::backdrop { background: rgba(23, 50, 71, .45); backdrop-filter: blur(7px); }
.checkout-dialog form, .result-dialog { padding: 28px; }
.dialog-heading { display: flex; justify-content: space-between; gap: 20px; align-items: start; margin-bottom: 24px; }
.dialog-heading span { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .14em; }
.dialog-heading h2 { margin: 6px 0 0; color: var(--white); font-size: 28px; }
.close-button { width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--white); font-size: 22px; cursor: pointer; }
.checkout-product { padding: 18px; margin-bottom: 20px; border-radius: 12px; background: rgba(98,243,213,.06); display: flex; justify-content: space-between; gap: 16px; }
.checkout-product strong { color: var(--white); }
.checkout-product span { color: var(--cyan); }
.quantity-control { display: grid; grid-template-columns: 46px 1fr 46px; }
.quantity-control input { border-radius: 0; text-align: center; }
.quantity-control button { border: 1px solid #bfd0d4; background: #edf4f4; color: var(--ink); cursor: pointer; }
.quantity-control button:first-child { border-radius: 10px 0 0 10px; }.quantity-control button:last-child { border-radius: 0 10px 10px 0; }
fieldset { margin: 20px 0; padding: 0; border: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
legend { margin-bottom: 9px; color: #40596a; font-size: 12px; font-weight: 700; }
.payment-option { grid-template-columns: auto 36px 1fr; align-items: center; gap: 10px; padding: 13px; border: 1px solid #bfd0d4; border-radius: 11px; cursor: pointer; }
.payment-option input { width: 16px; height: 16px; }
.payment-option > span:last-child { display: grid; gap: 2px; }
.payment-option strong { color: var(--white); font-size: 13px; }.payment-option small { color: var(--muted); font-size: 10px; }
.pay-icon { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; color: white; font-weight: 900; }
.pay-icon.alipay { background: #1677ff; }.pay-icon.wechat { background: #07c160; }
.checkout-total { margin: 22px 0; padding-top: 20px; border-top: 1px solid var(--line); display: flex; align-items: end; justify-content: space-between; }
.checkout-total span { color: var(--muted); }.checkout-total strong { color: var(--white); font-size: 30px; }
.checkout-note { color: var(--amber); font-size: 11px; line-height: 1.6; text-align: center; }
.inline-message { padding: 12px 14px; border-radius: 9px; }
.inline-message.error { color: #932e38; background: #fff0f1; border: 1px solid #e7b7bc; }
.result-lead { color: var(--muted); line-height: 1.7; }
.credential-box { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.credential-box span { grid-column: 1 / -1; color: var(--muted); font-size: 10px; }
.credential-box code { color: var(--cyan); overflow-wrap: anywhere; }
.credential-box button { border: 0; background: transparent; color: var(--amber); cursor: pointer; }
.pending-payment { margin: 20px 0; padding: 16px; border-radius: 11px; background: #fff8ec; border: 1px solid #dfc79d; }
.pending-payment strong { color: var(--amber); }.pending-payment p { margin: 5px 0 0; color: var(--muted); font-size: 12px; }

/* V0.14: complete storefront navigation and page hierarchy. */
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 11px; background: #fff; cursor: pointer; list-style: none; place-content: center; gap: 4px; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu summary span { width: 18px; height: 2px; display: block; margin: 3px auto; border-radius: 2px; background: var(--ink); }
.mobile-menu nav { position: absolute; right: 0; top: 50px; z-index: 30; width: min(280px, calc(100vw - 28px)); padding: 10px; display: grid; gap: 2px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: var(--shadow); }
.mobile-menu nav a { min-height: 46px; padding: 0 14px; display: flex; align-items: center; border-radius: 9px; color: var(--ink); font-weight: 750; }
.mobile-menu nav a:hover { background: #edf7f5; }

.inner-hero .hero-actions { margin-bottom: 0; }
.shop-intro { padding: 22px 24px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border: 1px solid #bad9d3; border-radius: 16px; background: #eaf7f4; }
.shop-intro > div { display: grid; gap: 5px; }
.shop-intro strong { color: var(--ink); font-size: 15px; }
.shop-intro span { color: var(--muted); font-size: 13px; line-height: 1.7; }
.shop-intro a { color: var(--cyan); font-size: 13px; font-weight: 800; white-space: nowrap; }
.catalog-jumps { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.catalog-jumps a, .catalog-jumps span { min-height: 38px; padding: 0 14px; display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--ink); text-decoration: none; font-size: 12px; font-weight: 750; }
.catalog-jumps a:hover { color: var(--cyan); border-color: var(--cyan); }
.catalog-jumps span { margin-left: auto; border-color: transparent; background: transparent; color: var(--muted); font-weight: 500; }
.page-catalog .listing-group { scroll-margin-top: 20px; }
.page-catalog .listing-card { min-height: 340px; position: relative; overflow: hidden; box-shadow: 0 15px 38px rgba(23, 50, 71, .09); }
.page-catalog .listing-card { border-color: #214863; background: #102b40; }
.page-catalog .listing-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; background: var(--cyan); }
.page-catalog .listing-card:hover { transform: translateY(-3px); border-color: #80bcb3; }
.page-catalog .listing-card footer { background: transparent; }
.page-catalog .listing-card h2 a, .page-catalog .listing-card footer strong { color: #fff; }
.page-catalog .listing-card > p, .page-catalog .listing-card > div { color: #bfd0db; }
.page-catalog .listing-card .button-quiet { border-color: #3f657c; background: #173b54; color: #fff; }
.page-catalog .listing-card .button-quiet:hover { border-color: #66d7c7; background: #1c4864; }

.mini-label { color: var(--cyan); font: 800 10px ui-monospace, monospace; letter-spacing: .13em; }
.query-form label > span { color: var(--muted); font-size: 10px; font-weight: 500; }
.query-help { margin-top: 8px; }
.guide-feature { padding: 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; border-radius: var(--radius); background: var(--ink); color: #fff; }
.guide-feature span { color: #69dfce; font: 800 10px ui-monospace, monospace; letter-spacing: .14em; }
.guide-feature h2 { margin: 12px 0; font-size: 30px; }
.guide-feature p { margin: 0; color: #bdd0dc; line-height: 1.75; }
.guide-feature > div:last-child { display: grid; gap: 9px; }
.guide-feature a { padding: 15px 17px; display: flex; justify-content: space-between; border: 1px solid #35536a; border-radius: 10px; color: #fff; text-decoration: none; }
.guide-feature a:hover { border-color: #69dfce; color: #69dfce; }
.guide-article { max-width: 850px; }
.guide-article .prose { max-width: none; }
.article-action { max-width: 850px; margin: 34px 0; padding: 28px; border: 1px solid var(--line); border-left: 4px solid var(--cyan); border-radius: 18px; background: #fff; box-shadow: 0 16px 40px rgba(15, 54, 66, .07); }
.article-action > span { color: var(--cyan); font-size: 12px; font-weight: 800; letter-spacing: .14em; }
.article-action h2 { margin: 8px 0 10px; font-size: clamp(22px, 3vw, 30px); }
.article-action p { margin: 0; color: var(--muted); line-height: 1.8; }
.article-action > div { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }
.article-action a { color: var(--cyan); font-weight: 800; }
.fact-gate { margin: 28px 0; padding: 24px 28px; border: 1px solid #e5c58e; border-left: 6px solid var(--amber); border-radius: 18px; background: #fff9ed; box-shadow: 0 12px 34px rgba(23, 50, 71, .06); }
.fact-gate strong { display: block; color: #7d4804; font-size: 20px; }
.fact-gate p { margin: 10px 0 0; color: var(--muted); line-height: 1.75; }

.site-footer { width: 100%; min-height: 0; padding: 70px max(20px, calc((100% - 1180px) / 2)) 24px; display: block; background: #eaf2f1; border-top: 1px solid #c8d8d8; }
.footer-main { display: grid; grid-template-columns: 1.65fr repeat(3, 1fr); gap: 48px; }
.footer-main > div:first-child > p { max-width: 380px; margin: 20px 0 0; color: var(--muted); line-height: 1.75; }
.footer-column { display: grid; align-content: start; gap: 13px; }
.footer-column strong { margin-bottom: 3px; color: var(--ink); font-size: 13px; }
.footer-column a { color: var(--muted); text-decoration: none; }
.footer-column a:hover { color: var(--cyan); }
.footer-bottom { margin-top: 48px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid #c8d8d8; }

.page-article .inner-hero { max-width: 900px; }
.page-order .inner-hero { padding-bottom: 48px; }
.page-content .prose > p:first-child, .guide-article .prose > p:first-child { color: var(--ink); font-size: 18px; line-height: 1.85; }

/* V0.11: light reading surface with a distinct, conversion-focused product zone. */
.products-section {
  width: min(1340px, calc(100% - 40px));
  margin-top: 18px;
  padding: 64px;
  border: 1px solid #c9dfdc;
  border-radius: 32px;
  background: #e9f4f2;
  box-shadow: 0 24px 70px rgba(23, 50, 71, .08);
}
.products-section .section-heading {
  padding-bottom: 28px;
  border-bottom: 1px solid #bfd7d3;
}
.products-section .section-heading h2 {
  position: relative;
  padding-left: 20px;
}
.products-section .section-heading h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 5px;
  border-radius: 99px;
  background: var(--cyan);
}
.product-group-heading { border-bottom-color: #bfd7d3; }
.product-card {
  min-height: 350px;
  border-color: #173b58;
  background: #10283d;
  box-shadow: 0 16px 34px rgba(16, 40, 61, .18);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.product-card::before { height: 5px; opacity: 1; }
.product-card::after { color: rgba(91, 221, 201, .09); }
.product-card:hover {
  transform: translateY(-5px);
  border-color: #2aa895;
  box-shadow: 0 22px 46px rgba(16, 40, 61, .25);
}
.product-status { background: #d9f5ee; color: #075f52; }
.product-status.sold-out { background: #ffe7e3; color: #a22e36; }
.delivery-badge { color: #b3c5d2; }
.product-card h4 { color: #fff; font-size: 20px; }
.product-description { color: #c3d2dc; font-size: 14px; }
.product-price span { color: #a9bdca; }
.product-price strong { color: #fff; font-size: 30px; letter-spacing: -.02em; }
.buy-button {
  min-width: 112px;
  background: #1aa58f;
  color: #fff;
  box-shadow: 0 9px 20px rgba(0, 0, 0, .18);
}
.buy-button:hover { background: #20b79f; }
.buy-button:disabled {
  background: #29455d;
  color: #c0ced8;
  box-shadow: none;
}

.choice-grid article,
.assurance-section article,
.content-grid article,
.notice,
.blog-card,
.query-form,
.query-result,
.listing-card,
.product-detail-main,
.product-detail aside,
.decision-table,
.format-explainer,
.timeline {
  box-shadow: 0 12px 34px rgba(23, 50, 71, .07);
}
.content-grid article,
.notice,
.blog-card,
.listing-card,
.product-detail-main,
.product-detail aside {
  border-color: #c5d6da;
}
.content-grid h2,
.prose h2,
.listing-group h2,
.blog-card h2,
.product-detail h2 { font-weight: 850; }
.content-grid b,
.product-answers b {
  display: inline-flex;
  padding: 6px 9px;
  border-radius: 999px;
  background: #e0f3ef;
  color: #087264;
}
.notice {
  border-left-width: 6px;
  background: #fffaf0;
}
.prose {
  padding: 36px 40px;
  border: 1px solid #c5d6da;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 12px 34px rgba(23, 50, 71, .07);
}
.prose p,
.content-grid p,
.product-detail-main > p,
.product-detail aside li { font-size: 15px; }
.content-faq details {
  margin-bottom: 12px;
  padding: 0 22px;
  border: 1px solid #c9d8dc;
  border-radius: 14px;
  background: #fff;
}
.content-faq summary { font-size: 16px; }

.policy-hero {
  display: grid;
  gap: 14px;
  padding: 34px 38px;
  border: 1px solid #b8d8d2;
  border-left: 7px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #e8f7f3, #fff);
  box-shadow: 0 14px 40px rgba(23, 50, 71, .08);
}
.policy-hero > span { color: var(--cyan); font: 850 11px ui-monospace, monospace; letter-spacing: .14em; }
.policy-hero > strong { color: var(--ink); font-size: clamp(24px, 3vw, 36px); line-height: 1.25; }
.policy-hero > p { max-width: 880px; margin: 0; color: var(--muted); line-height: 1.8; }
.policy-hero .button { justify-self: start; margin-top: 4px; }

.support-channels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.support-channels > * { min-height: 180px; padding: 28px; display: grid; align-content: center; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; text-decoration: none; box-shadow: 0 12px 35px rgba(23, 50, 71, .06); }
.support-channels > a:hover { border-color: var(--cyan); transform: translateY(-2px); }
.support-channels span { color: var(--cyan); font: 850 11px ui-monospace, monospace; letter-spacing: .12em; }
.support-channels strong { color: var(--ink); font-size: 20px; overflow-wrap: anywhere; }
.support-channels em { color: var(--muted); font-style: normal; line-height: 1.6; }

.home-blog { border-top: 1px solid var(--line); }
.home-blog-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 18px; }
.home-blog-feature { min-height: 360px; padding: 38px; display: flex; flex-direction: column; justify-content: end; border-radius: var(--radius); background: linear-gradient(150deg, #0d5960, #173247); color: #fff; box-shadow: var(--shadow); }
.home-blog-feature > span { margin-bottom: auto; color: #8fe7da; font: 850 11px ui-monospace, monospace; letter-spacing: .14em; }
.home-blog-feature h3 { margin: 24px 0 12px; font-size: 30px; }
.home-blog-feature p { color: #d7e6e8; line-height: 1.75; }
.home-blog-feature a { color: #8fe7da; font-weight: 800; text-decoration: none; }
.home-blog-grid nav { display: grid; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; overflow: hidden; }
.home-blog-grid nav a { padding: 24px 28px; display: flex; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--line); text-decoration: none; }
.home-blog-grid nav a:last-child { border-bottom: 0; }
.home-blog-grid nav a:hover { background: #edf7f5; }
.home-blog-grid nav strong { color: var(--ink); }
.home-blog-grid nav span { color: var(--cyan); white-space: nowrap; }

.floating-actions { position: fixed; z-index: 18; right: 18px; bottom: 18px; display: grid; justify-items: end; gap: 8px; }
.floating-actions .floating-help { position: static; }
.floating-support { padding: 11px 14px; display: grid; gap: 1px; border: 1px solid #acd4cd; border-radius: 14px; background: #fff; color: var(--ink); text-decoration: none; box-shadow: var(--shadow); }
.floating-support span { color: var(--cyan); font-size: 11px; font-weight: 850; }
.floating-support strong { font-size: 12px; }

/* V0.17.3: customer-facing 2FA code tool. */
.two-factor-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr);
  gap: 20px;
  align-items: stretch;
}
.two-factor-tool,
.two-factor-privacy {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid #bdd7d3;
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 18px 48px rgba(23, 50, 71, .09);
}
.two-factor-tool { display: grid; gap: 30px; }
.tool-heading { display: grid; justify-items: center; gap: 12px; padding: 26px; border-radius: 18px; background: #102f43; color: #fff; text-align: center; }
.tool-heading > span { color: #8ce7d8; font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.tool-heading > strong { min-height: 1.25em; font-size: clamp(42px, 8vw, 72px); letter-spacing: .14em; line-height: 1; font-variant-numeric: tabular-nums; }
.tool-heading > small { color: #bed0db; }
.two-factor-progress { width: min(100%, 420px); height: 6px; overflow: hidden; border-radius: 99px; background: #365267; }
.two-factor-progress span { display: block; width: var(--remaining, 100%); height: 100%; border-radius: inherit; background: #54ddc9; transition: width .2s linear; }
#two-factor-form { display: grid; gap: 14px; }
#two-factor-form > label { color: var(--ink); font-weight: 850; }
#two-factor-form > label span { display: block; margin-top: 6px; color: var(--muted); font-size: 12px; font-weight: 500; }
.secret-field { display: grid; grid-template-columns: 1fr auto; }
.secret-field input { min-width: 0; height: 56px; padding: 0 16px; border: 1px solid #b9ced2; border-radius: 12px 0 0 12px; background: #f8fbfb; color: var(--ink); font: 700 16px ui-monospace, monospace; letter-spacing: .08em; }
.secret-field input:focus { outline: 3px solid rgba(8, 121, 106, .14); border-color: var(--cyan); }
.secret-field button { min-width: 70px; border: 1px solid #b9ced2; border-left: 0; border-radius: 0 12px 12px 0; background: #eef5f4; color: var(--ink); font-weight: 750; cursor: pointer; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.tool-actions .button { min-height: 46px; }
.two-factor-message { min-height: 24px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.two-factor-message.success { color: #087264; }
.two-factor-message.error { color: #a22e36; }
.copy-two-factor-code { min-height: 50px; border: 1px solid #9fcec6; border-radius: 12px; background: #e5f6f2; color: #075f52; font-weight: 850; cursor: pointer; }
.copy-two-factor-code:disabled { cursor: not-allowed; opacity: .5; }
.two-factor-privacy { display: grid; align-content: start; gap: 14px; background: linear-gradient(145deg, #eef8f6, #fff); }
.two-factor-privacy > span { color: var(--cyan); font-size: 11px; font-weight: 850; letter-spacing: .12em; }
.two-factor-privacy h2 { margin: 0; color: var(--ink); font-size: clamp(25px, 3vw, 34px); line-height: 1.25; }
.two-factor-privacy > p { margin: 0; color: var(--muted); line-height: 1.8; }
.two-factor-privacy dl { margin: 12px 0 0; display: grid; gap: 0; border-top: 1px solid #c8dcda; }
.two-factor-privacy dl div { padding: 16px 0; display: grid; gap: 5px; border-bottom: 1px solid #c8dcda; }
.two-factor-privacy dt { color: var(--muted); font-size: 11px; }
.two-factor-privacy dd { margin: 0; color: var(--ink); font-weight: 800; }

@keyframes dispatch { 0% { left: 0; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: calc(100% - 42px); opacity: 0; } }
@keyframes loading { to { background-position: -200% 0; } }

@media (max-width: 900px) {
  .site-header .desktop-nav, .site-header > .header-action { display: none; }
  .mobile-menu { display: block; }
  .hero { grid-template-columns: 1fr; gap: 56px; padding-top: 62px; }
  .hero-copy { max-width: 700px; }
  .product-grid, .product-group[data-layout="four"] .product-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: 1fr; }
  .process-grid article { border-right: 0; border-bottom: 1px solid #cdd7dc; margin: 0; }
  .process-grid article:last-child { border-bottom: 0; }
  .query-section, .faq-section { grid-template-columns: 1fr; gap: 38px; }
  .assurance-section { grid-template-columns: 1fr; }
  .listing-grid, .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .product-detail { grid-template-columns: 1fr; }
  .content-grid.three { grid-template-columns: 1fr; }
  .choice-grid, .format-parts { grid-template-columns: repeat(2, 1fr); }
  .help-entry { grid-template-columns: 1fr; }
  .support-boundary, .related-block { grid-template-columns: 1fr; gap: 24px; }
  .support-channels { grid-template-columns: 1fr; }
  .two-factor-workspace { grid-template-columns: 1fr; }
  .home-blog-grid { grid-template-columns: 1fr; }
  .commerce-product { grid-template-columns: 1fr; }
  .commerce-visual { min-height: 520px; }
  .commerce-buy { position: static; }
  .footer-main { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-column:last-child { grid-column: 2 / -1; }
  .choice-grid article:nth-child(2) { border-right: 0; }
  .choice-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 620px) {
  .site-header, .hero, .section, footer { width: min(100% - 28px, 1180px); }
  .site-header { min-height: 68px; }
  .header-action { display: none; }
  .hero { min-height: auto; padding: 54px 0 70px; }
  h1 { font-size: clamp(43px, 13vw, 58px); }
  .hero-lead { font-size: 15px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .trust-list { justify-content: space-between; }
  .trust-list li { min-width: 0; padding-right: 12px; margin-right: 12px; }
  .dispatch-card { padding: 18px; }
  .dispatch-top { font-size: 8px; }
  .dispatch-steps strong { font-size: 11px; }
  .section { padding: 70px 0; }
  .products-section { width: calc(100% - 20px); padding: 44px 14px; border-radius: 24px; }
  .section-heading { display: grid; gap: 18px; }
  .product-group-heading { display: grid; gap: 10px; }
  .product-group-heading p { text-align: left; }
  .product-grid, .product-group[data-layout="four"] .product-grid { grid-template-columns: 1fr; }
  .process-section { width: 100%; padding-left: 14px; padding-right: 14px; }
  .query-form { padding: 20px; }
  .order-summary { grid-template-columns: 1fr 1fr; }
  footer { padding: 30px 0; align-items: start; flex-direction: column; gap: 16px; }
  fieldset { grid-template-columns: 1fr; }
  .checkout-dialog form, .result-dialog { padding: 22px; }
  .inner-main { width: min(100% - 28px, 1180px); padding-top: 28px; }
  .inner-hero { padding: 52px 0 46px; }
  .inner-hero h1 { font-size: clamp(42px, 12vw, 56px); }
  .content-grid.two, .listing-grid, .blog-grid { grid-template-columns: 1fr; }
  .choice-grid, .format-parts { grid-template-columns: 1fr; }
  .help-entry-links, .help-paths { grid-template-columns: 1fr; }
  .help-entry-links a, .help-paths > a { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .help-entry-links a:nth-child(n+3), .help-paths > a:nth-child(n+3) { border-bottom: 1px solid var(--line); }
  .help-entry-links a:last-child, .help-paths > a:last-child { border-bottom: 0; }
  .support-strip, .purchase-read { display: grid; grid-template-columns: 1fr; }
  .article-next, .support-boundary > div:last-child { grid-template-columns: 1fr; }
  .support-boundary, .related-block { padding: 24px; }
  .notice-actions { grid-template-columns: 1fr; }
  .purchase-notice form { padding: 22px; }
  .floating-actions { right: 12px; bottom: 12px; }
  .floating-support { display: none; }
  .home-blog-grid nav a { display: grid; gap: 8px; }
  .choice-grid article { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .choice-grid article:last-child { border-bottom: 0; }
  .decision-table, .format-explainer, .timeline { padding: 22px; }
  .listing-group > header { display: grid; gap: 10px; }
  .listing-group > header p { text-align: left; }
  .product-detail-main, .product-detail aside { padding: 24px; }
  .prose { padding: 26px 22px; }
  .product-detail dl { grid-template-columns: 1fr; }
  .two-factor-tool, .two-factor-privacy { padding: 20px; border-radius: 18px; }
  .tool-heading { padding: 24px 14px; }
  .tool-heading > strong { font-size: clamp(38px, 12vw, 54px); }
  .tool-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .tool-actions .button:first-child { grid-column: 1 / -1; }
  .commerce-product { gap: 14px; }
  .commerce-visual, .commerce-buy { border-radius: 18px; }
  .commerce-visual { min-height: 0; padding: 22px; }
  .commerce-visual-top { align-items: start; font-size: 9px; }
  .account-pack { margin: 48px 0 36px; grid-template-columns: 64px 1fr; gap: 15px; }
  .account-pack-icon { width: 64px; height: 64px; border-radius: 18px; font-size: 34px; }
  .account-pack strong { font-size: 25px; }
  .delivery-preview { padding: 17px; }
  .delivery-preview code { font-size: 12px; }
  .commerce-trust { padding-top: 24px; }
  .commerce-trust li { padding: 0 10px; }
  .commerce-trust strong { font-size: 14px; }
  .commerce-buy { padding: 23px; }
  .commerce-buy h1 { font-size: 35px; }
  .commerce-price strong { font-size: 31px; }
  .detail-payment { grid-template-columns: 1fr; }
  .detail-payment legend { grid-column: auto; }
  .detail-total strong { font-size: 29px; }
  .standalone-query { grid-template-columns: 1fr; }
  .not-found { display: grid; }
  .shop-intro, .guide-feature { grid-template-columns: 1fr; display: grid; gap: 18px; }
  .shop-intro a { white-space: normal; }
  .catalog-jumps span { width: 100%; margin-left: 0; padding-left: 0; }
  .site-footer { width: 100%; padding: 52px 20px 22px; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 34px 22px; }
  .footer-main > div:first-child { grid-column: 1 / -1; }
  .footer-column:last-child { grid-column: auto; }
  .footer-bottom { width: 100%; margin-top: 38px; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}