/* ==========================================================================
   SIKEO — inner pages extension
   Loaded AFTER styles.css. Adds only what the homepage file does not define.
   No external fonts, no CDN, no framework.
   ========================================================================== */

:root {
  /* 品牌琥珀 #ffc52d 在白底上对比度只有 1.58:1，不能当文字色。
     所有白底场景改用这个深琥珀（对比度 5.5:1，过 WCAG AA）。 */
  --amber-dark: #8a6100;
}

/* ---------- inner page hero ---------- */

.page-hero {
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -40%; right: -6%;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(255, 197, 45, .10), transparent 64%);
  pointer-events: none;
}
.page-hero .wrap { position: relative; padding-top: 56px; padding-bottom: 64px; }
.page-hero h1 {
  color: #fff;
  font-size: clamp(30px, 3.5vw, 46px);
  letter-spacing: -.03em;
  line-height: 1.1;
  margin: 18px 0 0;
  max-width: 20em;
}
.page-hero .lede { color: rgba(255, 255, 255, .70); margin-top: 18px; max-width: 46em; }
.page-hero--tight .wrap { padding-top: 40px; padding-bottom: 48px; }

/* ---------- breadcrumbs ---------- */

.crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, .45);
  letter-spacing: .02em;
}
.crumbs a { color: rgba(255, 255, 255, .62); border-bottom: 1px solid transparent; }
.crumbs a:hover { color: var(--amber); border-bottom-color: var(--amber); }
.crumbs span[aria-hidden] { color: rgba(255, 255, 255, .25); }
.crumbs--light { color: var(--text-3); }
.crumbs--light a { color: var(--text-2); }

/* ---------- generic bits ---------- */

.pill {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 1px;
  background: var(--mist-2);
  color: var(--text-2);
}
.pill--amber { background: var(--amber); color: var(--ink); }
.pill--red { background: var(--red); color: #fff; }
.pill--ink { background: var(--ink); color: #fff; }
.pill--line { background: transparent; border: 1px solid var(--line); color: var(--text-2); }

.section--tight { padding: 64px 0; }
.section--line { border-top: 1px solid var(--line); }

.sec-head { margin-bottom: 40px; max-width: 46em; }
.sec-head h2 { margin: 12px 0 0; }
.sec-head p { margin-top: 14px; }

.prose p { font-size: 15.5px; line-height: 1.72; color: var(--text-2); }
.prose p + p { margin-top: 16px; }
.prose h3 { font-size: 19px; margin: 32px 0 12px; }
.prose ul { margin: 14px 0 0 20px; }
.prose li { font-size: 15px; color: var(--text-2); line-height: 1.7; margin-bottom: 8px; }
.prose strong { color: var(--text); font-weight: 700; }

/* ---------- catalogue grid ---------- */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.cat-grid--3 { grid-template-columns: repeat(3, 1fr); }

.pcard {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .22s ease, transform .22s ease, border-color .22s ease;
}
.pcard:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: transparent; }
.pcard__img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--mist-2);
}
.pcard__img img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 45%; transition: transform .5s ease; }
.pcard:hover .pcard__img img { transform: scale(1.04); }
.pcard__body { padding: 16px 16px 18px; display: flex; flex-direction: column; flex: 1; border-top: 1px solid var(--line); }
.pcard__line { font-size: 10px; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); }
.pcard__title { font-size: 14.5px; font-weight: 700; letter-spacing: -.012em; line-height: 1.38; margin: 8px 0 0; }
.pcard__desc { font-size: 12.5px; color: var(--text-2); line-height: 1.5; margin-top: 7px; }
.pcard__foot {
  margin-top: auto;
  padding-top: 14px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--mist-2);
  margin-top: 14px;
}
.pcard__price { font-size: 14px; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.pcard__price small { font-size: 10.5px; font-weight: 600; color: var(--text-3); letter-spacing: 0; }
.pcard__badge {
  position: absolute;
  top: 10px; left: 10px;
  background: var(--ink);
  color: #fff;
  font-size: 9.5px;
  font-weight: 800;
  letter-spacing: .1em;
  padding: 4px 7px;
  border-radius: 1px;
}
.pcard__badge--hot { background: var(--red); }
.pcard__badge--amber { background: var(--amber); color: var(--ink); }

.empty-img {
  width: 100%; height: 100%;
  display: grid;
  place-items: center;
  background: repeating-linear-gradient(45deg, var(--mist) 0 10px, #fff 10px 20px);
  color: var(--text-3);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-align: center;
  padding: 12px;
}

/* ---------- filter chips ---------- */

.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.chip {
  font-size: 13px;
  font-weight: 650;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  color: var(--text-2);
  cursor: pointer;
  transition: all .16s ease;
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip .n { font-variant-numeric: tabular-nums; opacity: .55; margin-left: 6px; font-weight: 600; }

/* ---------- product detail ---------- */

.pdp { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: start; }

.pdp__gallery { position: sticky; top: 96px; }
.pdp__main {
  aspect-ratio: 4 / 3;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.pdp__main img { width: 100%; height: 100%; object-fit: contain; }
.pdp__tag {
  position: absolute;
  margin: 14px;
  background: var(--red);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
  padding: 5px 9px;
}

.pdp__sku { font-size: 11px; font-weight: 750; letter-spacing: .14em; color: var(--text-3); text-transform: uppercase; }
.pdp__title { font-size: clamp(26px, 2.6vw, 34px); letter-spacing: -.028em; line-height: 1.14; margin: 12px 0 0; }
.pdp__lede { font-size: 16px; color: var(--text-2); line-height: 1.62; margin-top: 14px; }

.pdp__pricebox {
  margin-top: 26px;
  padding: 20px 22px;
  background: var(--mist);
  border-left: 3px solid var(--amber);
}
.pdp__price { font-size: 26px; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.pdp__price span { font-size: 13px; font-weight: 600; color: var(--text-2); letter-spacing: 0; }
.pdp__pricenote { font-size: 11.5px; color: var(--text-3); margin-top: 8px; line-height: 1.5; }

.pdp__actions { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

/* ---------- spec table ---------- */

.spec { width: 100%; border-collapse: collapse; margin-top: 30px; font-size: 13.5px; }
.spec caption {
  text-align: left;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-bottom: 12px;
}
.spec th, .spec td { text-align: left; padding: 12px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec th { width: 40%; font-weight: 650; color: var(--text-2); }
.spec td { color: var(--text); }
.spec tr:first-child th, .spec tr:first-child td { border-top: 1px solid var(--line); }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 560px; }
.data-table th {
  text-align: left;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 12px 14px;
  border-bottom: 2px solid var(--ink);
  white-space: nowrap;
}
.data-table td { padding: 14px; border-bottom: 1px solid var(--line); color: var(--text-2); vertical-align: top; }
.data-table td:first-child { color: var(--text); font-weight: 650; }
.data-table tr:hover td { background: var(--mist); }

/* ---------- notices ---------- */

.notice {
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: #fff;
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.6;
  margin-top: 28px;
}
.notice--ink { background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .12); border-left-color: var(--amber); color: rgba(255, 255, 255, .72); }

/* ---------- cert / patent cards ---------- */

.cert-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cert-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 24px 22px;
  border-radius: 2px;
}
.cert-card__ico { font-size: 11px; font-weight: 800; letter-spacing: .14em; color: var(--amber-dark); }
.cert-card h3 { font-size: 15.5px; margin: 12px 0 8px; letter-spacing: -.015em; }
.cert-card p { font-size: 13px; color: var(--text-2); line-height: 1.55; }
.cert-card__no { font-family: ui-monospace, "SFMono-Regular", Consolas, monospace; font-size: 12px; color: var(--ink); margin-top: 12px; letter-spacing: .02em; }

/* ---------- timeline ---------- */

.timeline { display: grid; gap: 0; margin-top: 8px; }
.tl {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 28px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.tl:last-child { border-bottom: 1px solid var(--line); }
.tl__y { font-size: 15px; font-weight: 800; letter-spacing: -.01em; color: var(--amber-dark); font-variant-numeric: tabular-nums; }
.tl__b h3 { font-size: 16px; letter-spacing: -.012em; }
.tl__b p { font-size: 13.5px; color: var(--text-2); margin-top: 6px; line-height: 1.6; }

/* ---------- cta band ---------- */

.cta-band { background: var(--ink); color: #fff; }
.cta-band .wrap {
  padding-top: 64px;
  padding-bottom: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-band h2 { color: #fff; font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.028em; }
.cta-band p { color: rgba(255, 255, 255, .62); margin-top: 10px; font-size: 15px; max-width: 40em; }
.cta-band__act { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- faq (details/summary, no JS) ---------- */

.acc { border-top: 1px solid var(--line); }
.acc:last-of-type { border-bottom: 1px solid var(--line); }
.acc summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 40px 20px 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.012em;
  position: relative;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after {
  content: "+";
  position: absolute;
  right: 4px; top: 18px;
  font-size: 20px;
  font-weight: 400;
  color: var(--text-3);
  transition: transform .2s ease, color .2s ease;
}
.acc[open] summary::after { content: "\2013"; color: var(--ink); }
.acc summary:hover::after { color: var(--ink); }
.acc__a { font-size: 14px; color: var(--text-2); line-height: 1.7; padding: 0 40px 22px 0; max-width: 54em; }
.acc__a p + p { margin-top: 12px; }
.acc__a ul { margin: 10px 0 0 18px; }
.acc__a li { margin-bottom: 6px; }

/* ---------- mobile drawer ---------- */

.menu-btn {
  display: none;
  width: 42px; height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #fff;
  cursor: pointer;
  flex: 0 0 auto;
}
.menu-btn span {
  display: block;
  width: 17px; height: 1.5px;
  background: var(--ink);
  position: relative;
}
.menu-btn span::before, .menu-btn span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 17px; height: 1.5px;
  background: var(--ink);
}
.menu-btn span::before { top: -5px; }
.menu-btn span::after { top: 5px; }

.drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(15, 30, 40, .55);
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
  backdrop-filter: blur(2px);
}
.drawer__panel {
  position: absolute;
  top: 0; right: 0;
  width: min(86vw, 340px);
  height: 100%;
  background: #fff;
  padding: 20px 22px 32px;
  transform: translateX(100%);
  transition: transform .26s cubic-bezier(.22,.61,.36,1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.drawer.is-open { opacity: 1; pointer-events: auto; }
.drawer.is-open .drawer__panel { transform: translateX(0); }
.drawer__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.drawer__close {
  width: 38px; height: 38px;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 2px;
  font-size: 18px;
  line-height: 1;
  color: var(--text-2);
  cursor: pointer;
}
.drawer nav { display: grid; }
.drawer nav a {
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15.5px;
  font-weight: 650;
  color: var(--ink);
}
.drawer nav a:hover { color: var(--red); }
.drawer__foot { margin-top: auto; padding-top: 24px; display: grid; gap: 10px; }
.drawer__foot .btn { justify-content: center; }

/* ---------- form states ---------- */

.form__status {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.55;
  padding: 12px 14px;
  border-radius: 2px;
  display: none;
}
.form__status.is-error { display: block; background: #fdf1f3; border: 1px solid #f2c9d0; color: #8d1a2c; }
.form__status.is-ok { display: block; background: #f1f8f2; border: 1px solid #c9e3ce; color: #1d5c2c; }
.field--req label::after { content: " *"; color: var(--red); font-weight: 700; }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--red); background: #fffafa; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* ---------- contact layout ---------- */

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.contact-block + .contact-block { margin-top: 30px; padding-top: 30px; border-top: 1px solid var(--line); }
.contact-block h3 { font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--text-3); }
.contact-block p, .contact-block a { font-size: 15px; color: var(--text); line-height: 1.65; display: block; }
.contact-block a:hover { color: var(--red); }
.contact-block .map-note { font-size: 13px; color: var(--text-2); margin-top: 6px; }

/* ---------- 404 ---------- */

.err { min-height: 66vh; display: grid; place-items: center; text-align: center; padding: 80px 0; }
.err__no { font-size: clamp(68px, 12vw, 132px); font-weight: 800; letter-spacing: -.05em; line-height: 1; color: var(--ink); }
.err h1 { font-size: clamp(22px, 3vw, 30px); margin: 16px 0 0; letter-spacing: -.025em; }
.err p { color: var(--text-2); margin-top: 12px; max-width: 34em; margin-left: auto; margin-right: auto; }
.err__links { display: flex; gap: 12px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }

/* ---------- footer extras ---------- */

.footer__legal { display: flex; gap: 18px; flex-wrap: wrap; }
.footer__legal a:hover { color: var(--amber); }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .cat-grid { grid-template-columns: repeat(3, 1fr); }
  .pdp { grid-template-columns: 1fr; gap: 40px; }
  .pdp__gallery { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 44px; }
  .cert-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .cat-grid, .cat-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .cta-band .wrap { flex-direction: column; align-items: flex-start; gap: 26px; }
}

@media (max-width: 620px) {
  .wrap { padding: 0 18px; }
  /* 小屏放不下 logo + CTA + 汉堡，CTA 收进抽屉 */
  .nav__cta > a.btn { display: none; }
  .nav .wrap { gap: 12px; }
  .brand__sub { display: none; }
  .page-hero .wrap { padding-top: 36px; padding-bottom: 44px; }
  .cat-grid, .cat-grid--3, .cert-row { grid-template-columns: 1fr; }
  .tl { grid-template-columns: 68px 1fr; gap: 18px; }
  .spec th { width: 44%; }
  .pdp__actions .btn { flex: 1 1 auto; justify-content: center; }
  .err__links .btn { flex: 1 1 100%; justify-content: center; }
}