/* ============================================================
   Xianglong Circuit — JLCPCB-style light theme
   White background · JLC orange accents · clean B2B commerce
   ============================================================ */
:root {
  --orange: #ff6a00;
  --orange-dark: #e05e00;
  --orange-soft: #fff3ea;
  --navy: #14284b;
  --navy-deep: #0d1c38;
  --text: #333;
  --text-dim: #66707d;
  --text-light: #8b95a3;
  --bg: #ffffff;
  --bg-gray: #f5f7fa;
  --border: #e6e9ef;
  --blue: #2673f0;
  --green: #16a34a;
  --radius: 10px;
  --shadow-sm: 0 1px 4px rgba(20, 40, 75, 0.08);
  --shadow-md: 0 4px 18px rgba(20, 40, 75, 0.10);
  --shadow-lg: 0 12px 36px rgba(20, 40, 75, 0.14);
  --maxw: 1280px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
}
img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Top utility bar ---------- */
.topbar { background: #f2f4f7; border-bottom: 1px solid var(--border); font-size: 12.5px; color: var(--text-dim); }
.topbar-inner { max-width: var(--maxw); margin: 0 auto; padding: 6px 20px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar a { color: var(--text-dim); }
.topbar a:hover { color: var(--orange); }
.topbar .tb-right { display: flex; gap: 18px; }

/* ---------- Header ---------- */
.site-header { background: #fff; border-bottom: 2px solid var(--orange); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
.header-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; gap: 28px;
}
.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-mark {
  width: 46px; height: 46px; border-radius: 10px; flex: none;
  object-fit: cover; display: block;
}
.logo-text { line-height: 1.25; }
.logo-text strong { font-size: 20px; color: var(--navy); font-weight: 800; letter-spacing: 0.2px; }
.logo-text span { display: block; font-size: 11px; color: var(--text-light); letter-spacing: 2px; text-transform: uppercase; }

.search-box { flex: 1; display: flex; max-width: 520px; }
.search-box input {
  flex: 1; border: 2px solid var(--orange); border-right: none; border-radius: 8px 0 0 8px;
  padding: 9px 14px; font-size: 14px; outline: none; color: var(--text); font-family: inherit;
}
.search-box input::placeholder { color: var(--text-light); }
.search-box button {
  background: var(--orange); color: #fff; border: none; padding: 0 20px;
  border-radius: 0 8px 8px 0; font-size: 15px; cursor: pointer;
}
.search-box button:hover { background: var(--orange-dark); }

.header-actions { margin-left: auto; display: flex; align-items: center; gap: 14px; flex: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--navy); font-size: 20px; padding: 6px 12px; border-radius: 8px; cursor: pointer; }

/* ---------- Nav bar ---------- */
.main-nav { background: #fff; border-top: 1px solid var(--border); }
.main-nav ul { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.main-nav a {
  display: block; padding: 11px 15px; border-radius: 8px;
  color: var(--navy); font-size: 15px; font-weight: 600; white-space: nowrap;
}
.main-nav a:hover { background: var(--orange-soft); color: var(--orange); text-decoration: none; }
.main-nav a.active { color: var(--orange); }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(180deg, #f5f8ff 0%, #fff 100%); border-bottom: 1px solid var(--border); }
.hero-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 36px 20px 40px;
  display: grid; grid-template-columns: 400px 1fr; gap: 28px; align-items: stretch;
}

/* quote calculator */
.quote-panel {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  box-shadow: var(--shadow-md); padding: 24px; position: relative; overflow: hidden;
}
.quote-panel::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--orange), #ff9a4d); }
.quote-panel h2 { font-size: 19px; color: var(--navy); font-weight: 800; margin-bottom: 4px; }
.quote-panel .qp-sub { font-size: 12.5px; color: var(--text-light); margin-bottom: 16px; }
.qp-row { display: flex; gap: 10px; margin-bottom: 12px; }
.qp-field { flex: 1; display: flex; flex-direction: column; gap: 4px; }
.qp-field label { font-size: 12px; font-weight: 700; color: var(--text-dim); }
.qp-field select, .qp-field input {
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 10px;
  font-size: 14px; color: var(--text); background: #fff; outline: none; font-family: inherit; width: 100%;
}
.qp-field select:focus, .qp-field input:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.12); }
.qp-size { display: flex; align-items: center; gap: 6px; }
.qp-size span { color: var(--text-light); font-size: 13px; }
.qp-price {
  margin: 6px 0 14px; background: var(--orange-soft); border: 1px dashed rgba(255, 106, 0, 0.45);
  border-radius: 10px; padding: 12px 14px; display: flex; justify-content: space-between; align-items: baseline; gap: 10px;
}
.qp-price .lbl { font-size: 12.5px; color: var(--text-dim); font-weight: 600; }
.qp-price .val { font-size: 22px; font-weight: 800; color: var(--orange); }
.qp-price .val small { font-size: 12px; color: var(--text-light); font-weight: 600; }
.qp-note { font-size: 11.5px; color: var(--text-light); margin-top: 10px; text-align: center; }

/* hero banner side */
.hero-banner { position: relative; border-radius: 14px; overflow: hidden; box-shadow: var(--shadow-md); min-height: 320px; }
.hero-banner img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.hero-banner .hb-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 30px 34px; background: linear-gradient(180deg, rgba(13, 28, 56, 0) 30%, rgba(13, 28, 56, 0.82) 100%);
}
.hero-banner h2, .hero-banner h1 { color: #fff; font-size: clamp(20px, 2.6vw, 30px); font-weight: 800; max-width: 560px; margin: 0; }
.hero-banner h2 em, .hero-banner h1 em { font-style: normal; color: #ffb46e; }
.hero-banner p { color: rgba(255, 255, 255, 0.85); font-size: 14.5px; margin: 8px 0 16px; max-width: 520px; }
.hero-chips { display: flex; gap: 10px; flex-wrap: wrap; }
.hb-chip { background: rgba(255, 255, 255, 0.14); backdrop-filter: blur(4px); border: 1px solid rgba(255, 255, 255, 0.3); color: #fff; font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 999px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 12px 26px; border-radius: 8px; border: none; cursor: pointer;
  font-weight: 700; font-size: 15px; text-align: center; font-family: inherit;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--orange); color: #fff; width: 100%; }
.btn-primary:hover { background: var(--orange-dark); }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-deep); }
.btn-outline { background: #fff; color: var(--navy); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--orange); color: var(--orange); }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Trust strip ---------- */
.trust { background: var(--bg-gray); border-bottom: 1px solid var(--border); }
.trust-grid { max-width: var(--maxw); margin: 0 auto; padding: 26px 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.trust-item { display: flex; gap: 14px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.trust-item .ico { font-size: 24px; line-height: 1.2; }
.trust-item b { display: block; color: var(--navy); font-size: 14.5px; }
.trust-item span { font-size: 12.5px; color: var(--text-dim); }

/* ---------- Sections ---------- */
section.block { padding: 64px 0; }
section.block.alt { background: var(--bg-gray); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 780px; margin: 0 auto 40px; text-align: center; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); color: var(--navy); font-weight: 800; }
.section-head h2 em { font-style: normal; color: var(--orange); }
.section-head p { margin-top: 10px; color: var(--text-dim); font-size: 15.5px; }

/* ---------- Service cards (JLCPCB product grid) ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(255, 106, 0, 0.35); }
.card .thumb { aspect-ratio: 4 / 3; overflow: hidden; background: #f2f4f7; }
.card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.card:hover .thumb img { transform: scale(1.04); }
.card .body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.card h3 { font-size: 17.5px; color: var(--navy); margin-bottom: 8px; font-weight: 700; }
.card p { font-size: 13.8px; color: var(--text-dim); flex: 1; }
.card ul.mini { margin: 8px 0 12px; }
.card ul.mini li { font-size: 13px; color: var(--text); padding-left: 20px; position: relative; margin-bottom: 4px; }
.card ul.mini li::before { content: "•"; position: absolute; left: 6px; color: var(--orange); font-weight: 800; }
.card .price-row { display: flex; align-items: baseline; gap: 8px; margin: 10px 0 12px; padding-top: 10px; border-top: 1px dashed var(--border); }
.card .price-row .from { font-size: 12px; color: var(--text-light); }
.card .price-row .price { font-size: 19px; font-weight: 800; color: var(--orange); }
.card .price-row .per { font-size: 12px; color: var(--text-light); }
.card .price-row .lead-time { margin-left: auto; font-size: 12px; color: var(--green); font-weight: 600; }
.card .btn-row { gap: 8px; }
.card .btn { padding: 8px 14px; font-size: 13px; border-radius: 7px; flex: 1; }
.card .tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 11.5px; padding: 2px 10px; border-radius: 999px;
  background: var(--orange-soft); color: var(--orange-dark); border: 1px solid rgba(255, 106, 0, 0.22);
}

/* ---------- Feature cards ---------- */
.feature { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 20px; box-shadow: var(--shadow-sm); }
.feature .icon { font-size: 26px; margin-bottom: 10px; }
.feature h3 { font-size: 16px; color: var(--navy); margin-bottom: 6px; font-weight: 700; }
.feature p { font-size: 13.5px; color: var(--text-dim); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 20px; position: relative; box-shadow: var(--shadow-sm); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: block; font-size: 26px; font-weight: 800; color: rgba(255, 106, 0, 0.25); margin-bottom: 6px;
}
.step h3 { font-size: 16px; color: var(--navy); margin-bottom: 6px; font-weight: 700; }
.step p { font-size: 13.5px; color: var(--text-dim); }

/* ---------- Stats ---------- */
.stats { background: var(--navy); color: #fff; }
.stats-grid { max-width: var(--maxw); margin: 0 auto; padding: 44px 20px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat b { font-size: 36px; color: #ffb46e; display: block; line-height: 1.15; font-weight: 800; }
.stat span { font-size: 13.5px; color: rgba(255, 255, 255, 0.75); }

/* ---------- Split layout ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split img { border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-md); width: 100%; object-fit: cover; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--orange); margin-bottom: 12px;
}
.kicker::before { content: ""; width: 24px; height: 3px; background: var(--orange); border-radius: 2px; }
.checklist li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--text); font-size: 15px; }
.checklist li::before {
  content: "✓"; position: absolute; left: 0; top: 2px;
  width: 19px; height: 19px; border-radius: 50%; font-size: 11px; font-weight: 800;
  display: grid; place-items: center; color: #fff; background: var(--orange);
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); background: #fff; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; }
table.data th, table.data td { padding: 11px 16px; text-align: left; border-bottom: 1px solid var(--border); }
table.data th { background: var(--orange-soft); color: var(--navy); font-weight: 700; white-space: nowrap; font-size: 13.5px; }
table.data tr:last-child td { border-bottom: none; }
table.data td { color: var(--text); }
table.data td.k { color: var(--text-dim); }
table.data tr:hover td { background: #fafbfe; }

/* ---------- Timeline ---------- */
.timeline { position: relative; margin-left: 10px; padding-left: 32px; border-left: 2px solid rgba(255, 106, 0, 0.3); }
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item::before {
  content: ""; position: absolute; left: -41px; top: 6px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--orange); box-shadow: 0 0 0 5px rgba(255, 106, 0, 0.15);
}
.timeline-item .year { font-size: 19px; font-weight: 800; color: var(--orange); }
.timeline-item p { color: var(--text-dim); font-size: 14.5px; margin-top: 4px; }

/* ---------- FAQ ---------- */
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: #fff; margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer; padding: 16px 20px; font-weight: 700; color: var(--navy); font-size: 15.5px;
  list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--orange); font-size: 22px; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] summary { background: var(--orange-soft); }
.faq-item .faq-a { padding: 4px 20px 18px; color: var(--text-dim); font-size: 14.5px; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--navy) 0%, #1d3a6e 100%);
  border-radius: 16px; padding: 42px 46px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::before { content: ""; position: absolute; right: -60px; top: -60px; width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 106, 0, 0.18); }
.cta-band h2 { font-size: clamp(21px, 2.8vw, 28px); color: #fff; font-weight: 800; }
.cta-band p { color: rgba(255, 255, 255, 0.78); margin-top: 8px; max-width: 560px; font-size: 15px; }
.cta-band .btn { background: var(--orange); color: #fff; position: relative; }
.cta-band .btn:hover { background: var(--orange-dark); }

/* ---------- Form ---------- */
.rfq-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.field { display: flex; flex-direction: column; gap: 5px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; color: var(--navy); }
.field label span { color: var(--orange); }
.field input, .field select, .field textarea {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; color: var(--text); font-size: 14.5px; font-family: inherit; outline: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(255, 106, 0, 0.12); }
.form-note { grid-column: 1 / -1; font-size: 12.5px; color: var(--text-light); }
.form-status { grid-column: 1 / -1; padding: 12px 16px; border-radius: 8px; display: none; font-size: 14px; }
.form-status.ok { display: block; background: #f0fdf4; border: 1px solid #bbf7d0; color: #15803d; }
.form-status.err { display: block; background: var(--orange-soft); border: 1px solid rgba(255, 106, 0, 0.4); color: var(--orange-dark); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.contact-card h3 { color: var(--navy); margin-bottom: 12px; font-size: 17px; }
.contact-card p { color: var(--text-dim); font-size: 14px; margin-bottom: 8px; }
.contact-card b { color: var(--navy); font-weight: 700; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-deep); color: rgba(255, 255, 255, 0.72); margin-top: 72px; }
.footer-grid { max-width: var(--maxw); margin: 0 auto; padding: 48px 20px 28px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.2fr; gap: 32px; }
.site-footer h4 { color: #fff; font-size: 14.5px; margin-bottom: 14px; letter-spacing: 0.5px; font-weight: 700; }
.site-footer p, .site-footer li { font-size: 13px; margin-bottom: 8px; color: rgba(255, 255, 255, 0.65); }
.site-footer a { color: rgba(255, 255, 255, 0.65); }
.site-footer a:hover { color: #ffb46e; }
.footer-cert { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.footer-cert span { border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 6px; padding: 3px 10px; font-size: 11px; color: rgba(255, 255, 255, 0.75); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); max-width: var(--maxw); margin: 0 auto; padding: 16px 20px 24px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 12px; color: rgba(255, 255, 255, 0.45); }

/* ---------- Page hero (inner) ---------- */
.crumbs { font-size: 12.5px; color: var(--text-light); padding-top: 20px; }
.crumbs a { color: var(--text-light); }
.crumbs a:hover { color: var(--orange); }
.page-hero { background: var(--bg-gray); border-bottom: 1px solid var(--border); padding: 44px 0 38px; }
.page-hero h1 { font-size: clamp(26px, 3.4vw, 38px); color: var(--navy); font-weight: 800; }
.page-hero h1 em { font-style: normal; color: var(--orange); }
.page-hero p { margin-top: 10px; color: var(--text-dim); max-width: 760px; font-size: 15.5px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; }
  .quote-panel { max-width: 520px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .search-box { display: none; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4, .steps, .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-3, .grid-4, .grid-2, .contact-grid, .rfq-form, .split, .stats-grid, .footer-grid, .steps, .trust-grid { grid-template-columns: 1fr; }
  .header-actions .btn { display: none; }
  .main-nav ul { display: none; position: absolute; top: 100%; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); padding: 10px 20px 16px !important; flex-direction: column; align-items: stretch; }
  .main-nav.open ul { display: flex; }
  .nav-toggle { display: block; }
  .cta-band { padding: 30px 22px; }
  .topbar .tb-right { display: none; }
}

/* anchor offset under sticky header */
section[id] { scroll-margin-top: 120px; }

/* ---------- Breadcrumb ---------- */
.breadcrumb { background: #fff; border-bottom: 1px solid var(--border); font-size: 13px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 0; margin: 0; }
.breadcrumb li { color: var(--text-light); }
.breadcrumb li + li::before { content: "\203A"; margin-right: 8px; color: var(--border); }
.breadcrumb a { color: var(--orange); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb li[aria-current] { color: var(--text-dim); font-weight: 600; }

/* ---------- Collection pages (B) ---------- */
.collection-intro { max-width: 860px; margin-top: 14px; color: var(--text-dim); font-size: 15.5px; line-height: 1.75; }
.collection-intro p + p { margin-top: 12px; }
.collection-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 44px; align-items: start; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.spec-table td:first-child { color: var(--text-dim); width: 42%; }
.spec-table tr:hover td { background: var(--bg-gray); }
.faq-list details { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; background: #fff; }
.faq-list summary { cursor: pointer; font-weight: 700; padding: 13px 16px; color: var(--navy); list-style-position: inside; }
.faq-list details[open] summary { color: var(--orange); border-bottom: 1px solid var(--border); }
.faq-list details p { padding: 12px 16px; color: var(--text-dim); font-size: 14.5px; line-height: 1.7; margin: 0; }
.cards-col { display: flex; flex-direction: column; gap: 14px; }
.side-cta { margin-top: 22px; background: var(--navy); color: #fff; border-radius: 14px; padding: 22px; }
.side-cta h3 { color: #fff; font-size: 17px; }
.side-cta p { color: rgba(255,255,255,.75); font-size: 13.5px; margin: 8px 0 14px; }
.chips-row { display: flex; flex-wrap: wrap; gap: 12px; }
.chip { display: inline-block; background: #fff; border: 1.5px solid var(--border); color: var(--navy); font-weight: 700; font-size: 14px; padding: 10px 20px; border-radius: 999px; text-decoration: none; transition: all .15s; }
.chip:hover { border-color: var(--orange); color: var(--orange); transform: translateY(-1px); }
@media (max-width: 900px) { .collection-grid { grid-template-columns: 1fr; } }

/* ---------- Blog ---------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.blog-card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 24px; box-shadow: var(--shadow-sm); transition: all .15s; display:flex; flex-direction:column; }
.blog-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--orange); }
.blog-card h3 { font-size: 17px; margin: 10px 0; line-height: 1.45; }
.blog-card h3 a { color: var(--navy); text-decoration: none; }
.blog-card h3 a:hover { color: var(--orange); }
.blog-card p { color: var(--text-dim); font-size: 14px; line-height: 1.65; flex: 1; }
.blog-meta { display: flex; gap: 12px; color: var(--text-light); font-size: 12.5px; margin-top: 12px; }
.cat-badge { display: inline-block; background: #fff1e6; color: var(--orange); font-size: 12px; font-weight: 800; padding: 4px 12px; border-radius: 999px; letter-spacing: .3px; }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.article-main h1 { font-size: clamp(26px, 3.2vw, 36px); color: var(--navy); line-height: 1.3; margin: 12px 0 20px; }
.article-main h1 em { font-style: normal; color: var(--orange); }
.article-main h2 { font-size: 22px; color: var(--navy); margin: 34px 0 12px; }
.article-meta { display: flex; gap: 12px; align-items: center; color: var(--text-light); font-size: 13px; margin-bottom: 6px; }
.article-main p { color: var(--text-dim); font-size: 15.5px; line-height: 1.8; margin: 14px 0; }
.takeaways { background: var(--bg-gray); border-left: 4px solid var(--orange); border-radius: 10px; padding: 18px 22px; margin: 20px 0; }
.takeaways h3 { font-size: 15px; color: var(--navy); margin-bottom: 8px; letter-spacing: .5px; }
.takeaways ul { margin: 0; padding-left: 20px; }
.takeaways li { color: var(--text-dim); font-size: 14.5px; line-height: 1.7; margin: 6px 0; }
.article-main .spec-table { margin: 16px 0; }
.article-cta { background: var(--navy); border-radius: 14px; padding: 26px; margin-top: 34px; text-align: center; }
.article-cta h3 { color: #fff; margin-bottom: 14px; font-size: 18px; }
.article-side { position: sticky; top: 120px; display: flex; flex-direction: column; gap: 18px; }
.side-box { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.side-box h4 { color: var(--navy); font-size: 15px; margin-bottom: 10px; }
.side-cat { display: block; color: var(--text-dim); text-decoration: none; font-size: 14px; padding: 7px 0; border-bottom: 1px dashed var(--border); }
.side-cat:hover { color: var(--orange); }
.side-box p { color: var(--text-dim); font-size: 13.5px; line-height: 1.6; margin: 8px 0 14px; }
.faq-item { border: 1px solid var(--border); border-radius: 10px; margin-bottom: 10px; background: #fff; }
.faq-item summary { cursor: pointer; font-weight: 700; padding: 13px 16px; color: var(--navy); }
@media (max-width: 980px) { .blog-grid { grid-template-columns: 1fr 1fr; } .article-layout { grid-template-columns: 1fr; } .article-side { position: static; } }
@media (max-width: 640px) { .blog-grid { grid-template-columns: 1fr; } }