:root {
  --navy: #0b2e87; --navy-2: #163fae; --ink: #172640; --muted: #56647b; --line: #dde3ec; --paper: #f4f7fb;
  --green: #08774d; --green-bg: #e6f4ed; --coral: #d6453c; --coral-bg: #fdecea; --amber: #a86400; --amber-bg: #fff4dd;
  --radius: 12px; --shadow: 0 1px 2px rgba(23, 38, 64, .06), 0 6px 20px rgba(23, 38, 64, .06);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: var(--ink); background: #fff; }
img { max-width: 100%; display: block; }
a { color: var(--navy); text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid #f0b44c; outline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(28px, 4vw, 44px); }
h2 { font-size: 24px; }
h3 { font-size: 18px; }
p { margin: 0 0 1em; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.loading { padding: 80px 0; text-align: center; color: var(--muted); }
[hidden] { display: none !important; }

.announce { background: var(--navy); color: #fff; text-align: center; font-size: 14px; padding: 8px 16px; }
.site-header { border-bottom: 1px solid var(--line); background: #fff; position: sticky; top: 0; z-index: 10; }
.header-row { display: flex; align-items: center; gap: 32px; min-height: 68px; }
.logo img { width: 170px; height: auto; }
.main-nav { display: flex; gap: 24px; flex: 1; }
.main-nav a, .link-quiet { color: var(--ink); text-decoration: none; font-weight: 600; font-size: 15px; }
.main-nav a:hover, .link-quiet:hover { color: var(--navy); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.cart-button { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: var(--navy); color: #fff; text-decoration: none; font-weight: 600; font-size: 15px; }
.badge { background: #fff; color: var(--navy); border-radius: 999px; min-width: 22px; padding: 0 6px; text-align: center; font-size: 13px; line-height: 22px; }

.site-footer { margin-top: 80px; border-top: 1px solid var(--line); background: var(--paper); padding: 36px 0; }
.footer-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-row img { width: 130px; margin-bottom: 10px; }
.footer-nav { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-nav a { color: var(--muted); text-decoration: none; font-size: 14px; }

.hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: center; padding: 48px 0 32px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 560px; }
.hero-img { border-radius: 18px; overflow: hidden; background: var(--paper); aspect-ratio: 3 / 2; }
.hero-img img { width: 100%; height: 100%; object-fit: cover; }
.points { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 18px; padding: 0; list-style: none; font-size: 14px; color: var(--muted); }
.points li::before { content: "✓ "; color: var(--green); font-weight: 700; }

.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin: 24px 0 20px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; }
.chip { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 6px 14px; font-size: 14px; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.search { border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; min-width: 240px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit; background: #fff; transition: box-shadow .15s, transform .15s; }
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-img { aspect-ratio: 3 / 2; background: var(--paper); }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card-cat { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.card-title { font-weight: 650; line-height: 1.3; }
.card-foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 8px; }
.price { font-weight: 700; font-size: 18px; }
.stock { font-size: 13px; color: var(--green); }
.stock.out { color: var(--coral); }

.product { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 48px; padding: 32px 0; }
.gallery-main { border-radius: var(--radius); overflow: hidden; background: var(--paper); border: 1px solid var(--line); aspect-ratio: 3 / 2; }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.thumbs { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.thumbs button { width: 84px; aspect-ratio: 3 / 2; padding: 0; border: 2px solid var(--line); border-radius: 8px; overflow: hidden; background: var(--paper); cursor: pointer; }
.thumbs button[aria-current="true"] { border-color: var(--navy); }
.thumbs img { width: 100%; height: 100%; object-fit: cover; }
.buy-box { position: sticky; top: 90px; align-self: start; grid-column: 2; grid-row: 1 / span 2; background: #fff; }
.buy-box .price { font-size: 28px; margin: 6px 0 4px; }
.buy-row { display: flex; gap: 12px; margin: 20px 0 12px; }
.qty { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.qty button { width: 40px; border: 0; background: var(--paper); cursor: pointer; font-size: 18px; }
.qty input, .qty input[type=number] { width: 56px; border: 0; border-radius: 0; text-align: center; -moz-appearance: textfield; }
.qty input::-webkit-inner-spin-button { -webkit-appearance: none; }
.note-box { background: var(--paper); border-radius: 10px; padding: 12px 14px; font-size: 14px; color: var(--muted); }
.description { grid-column: 1; min-width: 0; }
.description > :first-child { margin-top: 0; }
.description h2 { font-size: 22px; margin-top: 1.6em; }
.description h3 { margin-top: 1.4em; }
.description ul { padding-left: 20px; }
.description li { margin-bottom: 4px; }
table { border-collapse: collapse; width: 100%; margin: 0 0 1em; font-size: 15px; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
th { background: var(--paper); font-weight: 600; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 10px; border: 1px solid transparent; background: var(--navy); color: #fff; font-weight: 650; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--navy-2); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.secondary { background: #fff; color: var(--ink); border-color: var(--line); }
.btn.secondary:hover { background: var(--paper); }
.btn.paypal { background: #ffc439; color: #111; }
.btn.paypal:hover { background: #f2b52b; }
.btn.danger { background: #fff; color: var(--coral); border-color: #f2c4c0; }
.btn.block { width: 100%; }
.link-btn { background: none; border: 0; color: var(--navy); text-decoration: underline; cursor: pointer; padding: 0; }

.layout-2 { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 40px; padding: 32px 0; align-items: start; }
.panel { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.panel + .panel { margin-top: 18px; }
.summary { background: var(--paper); border-color: transparent; position: sticky; top: 90px; }
.line { display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.line:last-child { border-bottom: 0; }
.line img { width: 64px; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 6px; background: var(--paper); }
.line-title { font-weight: 600; line-height: 1.3; }
.totals { margin-top: 12px; }
.totals div { display: flex; justify-content: space-between; padding: 4px 0; }
.totals .grand { font-weight: 700; font-size: 18px; border-top: 1px solid var(--line); margin-top: 6px; padding-top: 10px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
label { display: block; font-size: 14px; font-weight: 600; }
label > input:not([type=radio]):not([type=checkbox]), label > select, label > textarea { display: block; margin-top: 6px; }
.stack + label { margin-top: 16px; }
label .opt { font-weight: 400; color: var(--muted); }
input[type=text], input[type=email], input[type=tel], input[type=number], input[type=password], select, textarea { border: 1px solid #c9d2df; border-radius: 8px; padding: 10px 12px; font-weight: 400; background: #fff; width: 100%; }
textarea { min-height: 80px; resize: vertical; }
.radio-card { display: flex; flex-direction: row; gap: 12px; align-items: flex-start; border: 1px solid var(--line); border-radius: 10px; padding: 14px; cursor: pointer; font-weight: 400; }
.radio-card:has(input:checked) { border-color: var(--navy); background: #f2f5fd; }
.radio-card strong { display: block; }
.radio-card input { margin-top: 4px; }
.stack { display: flex; flex-direction: column; gap: 10px; }

.alert { border-radius: 10px; padding: 12px 16px; margin: 0 0 16px; font-size: 15px; }
.alert.error { background: var(--coral-bg); color: #8e241d; }
.alert.ok { background: var(--green-bg); color: #05553a; }
.alert.info { background: #eaf0fd; color: #183b8f; }
.alert.warn { background: var(--amber-bg); color: #6b4000; }

.steps { display: flex; gap: 0; margin: 18px 0 26px; padding: 0; list-style: none; counter-reset: s; }
.steps li { flex: 1; position: relative; padding-top: 34px; font-size: 13px; color: var(--muted); text-align: center; counter-increment: s; }
.steps li::before { content: counter(s); position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 26px; height: 26px; border-radius: 50%; background: var(--line); color: var(--muted); line-height: 26px; font-weight: 700; z-index: 1; }
.steps li::after { content: ""; position: absolute; top: 12px; left: -50%; width: 100%; height: 2px; background: var(--line); }
.steps li:first-child::after { display: none; }
.steps li.done::before { content: "✓"; background: var(--green); color: #fff; }
.steps li.done::after, .steps li.now::after { background: var(--green); }
.steps li.now::before { background: var(--navy); color: #fff; }
.steps li.now { color: var(--ink); font-weight: 650; }
.bank pre { white-space: pre-wrap; font: inherit; background: var(--paper); border-radius: 8px; padding: 12px 14px; margin: 8px 0 12px; }
.pay-options { display: grid; gap: 14px; }
.page-body { max-width: 760px; padding: 32px 0; }
.empty { text-align: center; padding: 70px 0; color: var(--muted); }

.share { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 18px; }
.share-btn { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 12px; font-size: 13px; color: var(--ink); text-decoration: none; cursor: pointer; }
.share-btn:hover { background: var(--paper); }
.mobile-buy { display: none; }

/* blog & docs */
.page-head { padding: 32px 0 12px; }
.post { max-width: 820px; padding: 24px 0; }
.lead { font-size: 19px; color: var(--muted); }
.post-cover { width: 100%; border-radius: var(--radius); margin: 8px 0 24px; }
.post .grid { margin-top: 12px; }
.video { position: relative; aspect-ratio: 16 / 9; margin: 0 0 1.2em; border-radius: var(--radius); overflow: hidden; background: #000; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.description img { max-width: 100%; height: auto; border-radius: 8px; margin: 8px 0; }
pre { background: #0f1b33; color: #e6edf7; border-radius: 10px; padding: 14px 16px; overflow-x: auto; font-size: 13.5px; line-height: 1.5; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; }
:not(pre) > code { background: var(--paper); border-radius: 4px; padding: 1px 5px; }
.table-wrap { overflow-x: auto; }
.doc-links { display: flex; gap: 8px; flex-wrap: wrap; margin: 14px 0; }
.doc-links .btn { padding: 8px 14px; font-size: 14px; }
.doc-list .line { text-decoration: none; color: inherit; }
.doc-list .line:hover .line-title { color: var(--navy); }
.docs { max-width: 900px; padding: 16px 0; }
.docs-guide { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); margin: 8px 0 20px; }
.readme { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 8px; }

@media (max-width: 860px) {
  .header-row { flex-wrap: wrap; }
  .main-nav { display: flex; order: 3; flex: 0 0 100%; gap: 18px; overflow-x: auto; padding: 0 0 10px; font-size: 14px; }
  .main-nav a { font-size: 14px; white-space: nowrap; }
  .mobile-buy { display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; justify-content: space-between; align-items: center; gap: 12px;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: #fff; border-top: 1px solid var(--line); box-shadow: 0 -4px 16px rgba(23, 38, 64, .08); }
  .mobile-buy .btn { flex: 1; max-width: 220px; }
  .product { padding-bottom: 70px; }
  .hero, .product, .layout-2 { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .line { grid-template-columns: 48px minmax(0, 1fr) auto; gap: 10px; }
  .line img { width: 48px; }
  .buy-box, .summary { position: static; }
  .buy-box, .description { grid-column: auto; grid-row: auto; }
  .header-row { gap: 12px; justify-content: space-between; }
  .logo img { width: 140px; }
  .search { min-width: 0; width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .steps li { font-size: 11px; }
}

/* v1.4: product options, field errors */
.options { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-top: 18px; }
.options select { width: 100%; }
.field-err { display: block; color: var(--coral); font-size: 13px; font-weight: 500; margin-top: 4px; }
[aria-invalid] { border-color: var(--coral) !important; }
.lbl { display: block; }

.group-family{--gf-ink:#172640;--gf-muted:#56647b;--gf-line:#d4ddea;--gf-card:#fff;--gf-card-muted:#4a5b76;--gf-current:#eaf0fc;--gf-accent:#3159ad;--gf-radius:12px;}

/* Group family: owner-confirmed parent and peer brands, in the same order on every site. */
.group-family{box-sizing:border-box;width:100%;margin:30px auto 0;padding:28px 0 6px;border-top:1px solid var(--gf-line);color:var(--gf-ink);text-align:left}
.group-family *{box-sizing:border-box}.group-family-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px}.group-family-heading h2{font-family:inherit;font-size:22px;font-weight:600;line-height:1.3;letter-spacing:-.04em;margin:0;color:var(--gf-ink)}.group-family .group-family-heading p{font-size:12px;line-height:1.5;margin:0;color:var(--gf-muted)}
.group-family-links{display:grid;grid-template-columns:215px minmax(0,1fr);gap:28px}.group-label{display:block;margin-bottom:12px;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--gf-muted)}
.group-family a{color:inherit;text-decoration:none}.group-parent-link{display:flex;align-items:center;gap:11px;min-height:112px;padding:15px 0}.group-parent-link>img{display:block;width:48px;height:48px;object-fit:contain;flex-shrink:0}.group-parent-link strong{display:block;font-size:18px;letter-spacing:-.035em;color:var(--gf-ink)}.group-parent-link .group-domain{margin-top:5px}.group-link-arrow{margin-left:auto;font-size:16px;color:var(--gf-muted)}
.group-domain{display:flex;align-items:center;justify-content:space-between;gap:5px;font-size:11px;line-height:1.5;color:var(--gf-card-muted);overflow-wrap:anywhere}.group-parent-link .group-domain{color:var(--gf-muted)}
.group-brand-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;list-style:none;margin:0;padding:0}.group-brand-list li{min-width:0;margin:0;padding:0}.group-brand-link{position:relative;display:flex;flex-direction:column;justify-content:center;gap:12px;min-height:112px;height:100%;padding:17px 13px 13px;border:1px solid var(--gf-line);border-radius:var(--gf-radius);background:var(--gf-card);transition:border-color .15s,background .15s}.group-brand-logo{display:flex;align-items:center;height:42px}.group-brand-logo>img{display:block;width:100%;max-width:151px;height:auto;max-height:42px;object-fit:contain;object-position:left center;margin:0}.group-brand-logo>.group-pogojig-logo{width:auto;max-width:110px;height:42px}.group-mip-logo{gap:8px;color:#244e3e;font-size:16px;font-weight:450;letter-spacing:-.04em;line-height:1.06}.group-mip-logo>img{width:34px;height:34px;flex-shrink:0}.group-mip-logo strong{font-weight:750}.group-brand-current{border-color:var(--gf-accent);background:var(--gf-current)}.group-current-note{position:absolute;top:5px;right:8px;font-size:8px;line-height:1.3;font-weight:600;color:var(--gf-card-muted)}.group-parent-link:hover strong{text-decoration:underline;text-underline-offset:4px}.group-brand-link:hover{border-color:var(--gf-accent);background:var(--gf-current)}.group-family a:focus-visible{outline:2px solid var(--gf-accent);outline-offset:4px}.group-family .gf-zh{display:none}html[lang^="zh"] .group-family .gf-en{display:none}html[lang^="zh"] .group-family .gf-zh{display:inline}
@media(max-width:1100px){.group-family-links{grid-template-columns:200px minmax(0,1fr);gap:24px}.group-brand-list{grid-template-columns:repeat(2,minmax(0,1fr))}.group-link-arrow{margin-left:0}}
@media(max-width:760px){.group-family-heading{display:block;margin-bottom:24px}.group-family-heading h2{font-size:21px}.group-family .group-family-heading p{margin-top:8px}.group-family-links{grid-template-columns:1fr;gap:24px}.group-parent-link{min-height:0;padding:0}.group-link-arrow{margin-left:8px}.group-brand-list{gap:10px}.group-domain{font-size:10px}.group-brand-link{min-height:112px}}

.site-footer>.group-family{max-width:1200px;width:calc(100% - 48px)}