/* SICLIN — light fitness brand redesign (Major Fitness–inspired patterns) */
:root {
  --bg: #f4f2ee;
  --bg-alt: #ebe8e2;
  --surface: #ffffff;
  --surface-2: #faf9f7;
  --border: #e2ddd4;
  --border-strong: #d0cac0;
  --text: #121212;
  --text-muted: #5c5c5c;
  --ink: #0a0a0a;
  --yellow: #FED100;
  --yellow-hover: #f0c400;
  --yellow-ink: #121212;
  --accent: #111111;
  --accent-soft: rgba(254, 209, 0, 0.22);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(18, 18, 18, 0.08);
  --shadow-hover: 0 16px 40px rgba(18, 18, 18, 0.12);
  --font: "Segoe UI", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --max: 1180px;
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--ink); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; font-weight: 700; letter-spacing: -0.02em; color: var(--text); }
p { margin: 0 0 1em; color: var(--text-muted); }
ul, ol { margin: 0; padding: 0; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--yellow); color: var(--yellow-ink); padding: 0.5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header — black sticky bar */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner {
  display: flex; align-items: center; gap: 1.25rem;
  min-height: var(--header-h);
}
.logo {
  display: flex; align-items: center; gap: 0.75rem;
  color: #fff; flex-shrink: 0;
}
.logo:hover { color: #fff; }
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  background: #fff;
  border-radius: 10px;
  padding: 0.35rem 0.55rem;
  height: 44px;
}
.logo-img { height: 28px; width: auto; display: block; }
.logo-img-sm { height: 24px; }
.logo-legal {
  font-size: 0.72rem; color: rgba(255,255,255,0.55);
  max-width: 7.5rem; line-height: 1.2;
  border-left: 1px solid rgba(255,255,255,0.18); padding-left: 0.7rem;
}

.nav {
  display: flex; gap: 1.05rem; margin-left: auto;
}
.nav a {
  color: rgba(255,255,255,0.72); font-size: 0.9rem; font-weight: 550;
  padding: 0.35rem 0; border-bottom: 2px solid transparent;
}
.nav a:hover { color: #fff; border-bottom-color: var(--yellow); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }

.lang-switcher { display: inline-flex; align-items: center; gap: 0.45rem; }
.lang-label {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; color: rgba(255,255,255,0.45); white-space: nowrap;
}
.lang-switch {
  display: inline-flex; align-items: stretch;
  border: 1px solid rgba(255,255,255,0.18); border-radius: 999px;
  overflow: hidden; background: rgba(255,255,255,0.06);
}
.lang-switch--lg .lang-btn { padding: 0.42rem 1rem; font-size: 0.85rem; }
.lang-btn {
  border: 0; background: transparent; color: rgba(255,255,255,0.7);
  padding: 0.38rem 0.8rem; font-size: 0.8rem; font-weight: 700;
  cursor: pointer; font-family: inherit; line-height: 1.2;
  transition: background 0.15s, color 0.15s;
  min-width: 2.5rem;
}
.lang-btn:hover { color: #fff; background: rgba(255,255,255,0.1); }
.lang-btn.is-active {
  background: var(--yellow); color: var(--yellow-ink);
}
.lang-btn:focus-visible {
  outline: 2px solid var(--yellow); outline-offset: 2px; z-index: 1;
}
.lang-switcher--footer .lang-label { color: rgba(255,255,255,0.45); }
.lang-switcher--light .lang-label { color: var(--text-muted); }
.lang-switcher--light .lang-switch {
  border-color: var(--border); background: var(--surface);
}
.lang-switcher--light .lang-btn { color: var(--text-muted); }
.lang-switcher--light .lang-btn:hover { color: var(--text); background: var(--bg-alt); }
.lang-switcher--light .lang-btn.is-active {
  background: var(--ink); color: #fff;
}

.menu-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 6px;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px; background: #fff;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0.8rem 1.4rem; border-radius: 999px; font-weight: 700;
  font-size: 0.95rem; border: 1px solid transparent; cursor: pointer;
  font-family: inherit; transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.15s, box-shadow 0.15s;
  letter-spacing: -0.01em;
}
.btn-sm { padding: 0.5rem 1rem; font-size: 0.85rem; }
.btn-primary {
  background: var(--yellow); color: var(--yellow-ink);
  box-shadow: 0 4px 14px rgba(254, 209, 0, 0.35);
}
.btn-primary:hover {
  background: var(--yellow-hover); color: var(--yellow-ink);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent; color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); background: rgba(0,0,0,0.03); }
.btn-ghost-light {
  background: transparent; color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.btn-ghost-light:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.08); }
.btn-dark {
  background: var(--ink); color: #fff;
}
.btn-dark:hover { background: #222; color: #fff; }
.btn-link {
  background: none; border: 0; color: var(--text);
  font-weight: 650; padding: 0.35rem 0;
  border-bottom: 2px solid var(--yellow);
  border-radius: 0;
}
.btn-link:hover { color: var(--ink); }

/* Hero — product-forward light */
.hero {
  position: relative;
  padding: 3.5rem 0 2.5rem;
  background:
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(254,209,0,0.12), transparent 55%),
    linear-gradient(180deg, #faf8f4 0%, var(--bg) 100%);
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 2.5rem;
  align-items: center;
}
.hero-copy { position: relative; z-index: 1; max-width: 34rem; }
.eyebrow {
  display: inline-block;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.eyebrow--yellow {
  color: #8a7200;
  background: var(--accent-soft);
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  letter-spacing: 0.06em;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.35rem);
  margin-bottom: 1rem;
  color: var(--ink);
  letter-spacing: -0.035em;
}
.hero-lead {
  font-size: 1.08rem;
  max-width: 34rem;
  margin-bottom: 1.75rem;
  color: var(--text-muted);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }
.hero-tags {
  display: flex; flex-wrap: wrap; gap: 0.45rem; list-style: none;
}
.hero-tags li {
  padding: 0.3rem 0.7rem; border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted); font-size: 0.8rem; font-weight: 600;
}
.hero-visual {
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero-visual-frame {
  width: 100%;
  background: var(--surface);
  border-radius: 24px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.25rem 1rem;
  overflow: hidden;
}
.hero-visual-frame img {
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: contain;
  margin: 0 auto;
}

.hero-visual-tri {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 0.65rem;
  width: 100%;
}
.hero-shot {
  margin: 0;
  background: #111;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(254,209,0,0.28);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-shot--main {
  grid-row: 1 / span 2;
}
.hero-shot img {
  width: 100%;
  height: 100%;
  max-height: 420px;
  object-fit: contain;
  background: linear-gradient(160deg, #1a1a1a, #0d0d0d);
  padding: 0.75rem;
}
.hero-shot figcaption {
  position: absolute;
  left: 0.65rem;
  bottom: 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #FED100;
  background: rgba(0,0,0,0.55);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
}
.hero--dark .hero-visual-tri .hero-shot {
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
@media (max-width: 860px) {
  .hero-visual-tri {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .hero-shot--main { grid-row: auto; grid-column: 1 / -1; }
  .hero-shot img { max-height: 280px; }
}

.hero-badge {
  position: absolute;
  left: 1rem; bottom: 1.25rem;
  background: var(--ink);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
}
.hero-badge span { color: var(--yellow); }

/* Category strip — MF-style large image tiles */
.cat-strip {
  padding: 3.5rem 0 1rem;
  background: var(--bg);
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.cat-card {
  position: relative;
  display: block;
  border-radius: 20px;
  overflow: hidden;
  min-height: 320px;
  box-shadow: var(--shadow);
  transition: transform 0.18s, box-shadow 0.18s;
  color: #fff;
}
.cat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  color: #fff;
}
.cat-card-media {
  position: absolute; inset: 0;
  background: #1a1a1a;
}
.cat-card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
  transition: transform 0.35s;
}
.cat-card:hover .cat-card-media img { transform: scale(1.06); }
.cat-card-media::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.72) 100%);
}
.cat-card-body {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.35rem 1.35rem 1.4rem;
  display: flex; align-items: baseline; justify-content: space-between; gap: 0.75rem;
  z-index: 1;
}
.cat-card-body h3 {
  margin: 0; font-size: 1.35rem; color: #fff; letter-spacing: -0.02em;
}
.cat-card-body span {
  font-size: 0.82rem; font-weight: 700; color: var(--yellow);
  white-space: nowrap;
}

/* Dark product hero for hard contrast vs light body */
.hero--dark {
  background:
    radial-gradient(ellipse 55% 60% at 78% 45%, rgba(254,209,0,0.12), transparent 55%),
    linear-gradient(120deg, #0a0a0a 0%, #161616 55%, #1c1c1c 100%);
  padding: 4rem 0 3.5rem;
  color: #fff;
}
.hero--dark .eyebrow { color: rgba(255,255,255,0.55); }
.hero--dark .eyebrow--yellow {
  color: var(--yellow-ink);
  background: var(--yellow);
}
.hero--dark h1 { color: #fff; }
.hero--dark .hero-lead { color: rgba(255,255,255,0.72); }
.hero--dark .hero-tags li {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
  color: rgba(255,255,255,0.75);
}
.hero--dark .btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.hero--dark .btn-ghost:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.hero--dark .hero-visual-frame {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.1);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.hero--dark .trust-strip {
  border-top-color: rgba(255,255,255,0.12);
}
.hero--dark .trust-item strong { color: #fff; }
.hero--dark .trust-item span { color: rgba(255,255,255,0.55); }
.hero--dark .trust-item strong span.y { color: var(--yellow); }

/* Sections */
.section { padding: 4.25rem 0; }
.section-alt { background: var(--bg-alt); }
.section-head { margin-bottom: 2rem; max-width: 640px; }
.section-head h2 { font-size: clamp(1.55rem, 3vw, 2.15rem); }
.section-desc { margin: 0; font-size: 1.02rem; }
.section-head-row {
  display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between;
  gap: 1rem; margin-bottom: 2rem;
}
.section-head-row .section-head { margin-bottom: 0; }

.cert-note {
  margin: 1.5rem 0 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.92rem;
}
.contact-mailto { display: inline-flex; margin-top: 1.25rem; }
.sticky-cta {
  display: none;
  position: fixed; right: 1rem; bottom: 1rem; z-index: 60;
  background: var(--yellow); color: var(--yellow-ink) !important;
  font-weight: 750; font-size: 0.95rem;
  padding: 0.85rem 1.25rem; border-radius: 999px;
  box-shadow: 0 10px 28px rgba(254, 209, 0, 0.45);
}
.sticky-cta:hover { background: var(--yellow-hover); color: var(--yellow-ink) !important; }
@media (max-width: 768px) {
  .sticky-cta { display: inline-flex; align-items: center; }
}

/* About */
.about-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1.35fr 1fr;
}
.about-copy p { font-size: 1.02rem; }
.fact-list { margin-top: 1.35rem; display: grid; gap: 0.85rem; }
.fact-list > div {
  padding: 1rem 1.1rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.fact-list dt {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: #8a7200; font-weight: 750; margin-bottom: 0.25rem;
}
.fact-list dd { margin: 0; color: var(--text); font-size: 0.95rem; }
.about-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow);
  align-self: start;
}
.about-card h3 { font-size: 1.05rem; }
.about-card ul { list-style: none; display: grid; gap: 0.75rem; }
.about-card li {
  position: relative; padding-left: 1.2rem; color: var(--text-muted); font-size: 0.95rem;
}
.about-card li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--yellow);
  box-shadow: 0 0 0 2px rgba(254,209,0,0.35);
}
.fact-chip {
  margin-top: 1.25rem; margin-bottom: 0;
  display: inline-block;
  padding: 0.45rem 0.85rem;
  background: var(--ink);
  border-radius: 999px;
  color: var(--yellow);
  font-size: 0.85rem; font-weight: 700;
}

/* Filters */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin: -0.25rem 0 1.5rem;
}
.filter-chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 0.42rem 0.95rem;
  font-size: 0.82rem; font-weight: 650;
  font-family: inherit; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.filter-chip:hover { border-color: var(--border-strong); color: var(--text); }
.filter-chip.is-active {
  background: var(--ink); border-color: var(--ink); color: #fff;
}

/* Products */
.product-grid {
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(3, 1fr);
}
.product-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1rem 1.15rem; overflow: hidden;
  box-shadow: 0 4px 16px rgba(18,18,18,0.04);
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
  display: flex; flex-direction: column;
}
.product-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.product-card.is-hidden { display: none; }
.product-visual {
  aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
  background: #f7f6f3;
  border-radius: 12px; margin-bottom: 0.95rem;
  border: 1px solid var(--border); overflow: hidden;
  padding: 0.85rem;
}
.product-visual img {
  width: 100%; height: 100%;
  object-fit: contain;
}
.product-code {
  display: inline-block;
  margin: 0 0 0.35rem;
  padding: 0.15rem 0.45rem;
  font-size: 0.72rem; font-weight: 750;
  letter-spacing: 0.04em; color: var(--ink);
  background: var(--yellow);
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.product-card h3 { margin-bottom: 0.25rem; font-size: 1.05rem; }
.product-cn {
  color: var(--text-muted); font-size: 0.8rem; margin-bottom: 0.4rem; font-weight: 600;
}
.product-meta {
  margin: 0 0 0.55rem;
  font-size: 0.78rem; color: var(--text-muted);
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.product-card > p.product-desc { font-size: 0.9rem; margin-bottom: 1rem; flex: 1; }
.product-actions {
  display: flex; gap: 0.55rem; margin-top: auto;
}
.product-actions .btn { flex: 1; padding: 0.55rem 0.75rem; font-size: 0.82rem; }

.catalog-note {
  margin-top: 1.75rem; margin-bottom: 0;
  padding: 1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Process */
.process-list {
  list-style: none; display: grid; gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
}
.process-list li {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 1.2rem;
  box-shadow: 0 4px 14px rgba(18,18,18,0.03);
}
.step-num {
  display: block; font-size: 0.78rem; font-weight: 800;
  color: #8a7200; letter-spacing: 0.06em; margin-bottom: 0.5rem;
}
.process-list h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.process-list p { margin: 0; font-size: 0.9rem; }

.terms-band {
  margin-top: 2.25rem;
  padding: 1.5rem;
  background: var(--ink);
  border-radius: var(--radius);
  color: #fff;
}
.terms-band-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.75rem 1.25rem;
  margin-bottom: 1.15rem;
}
.terms-band-head h3 { margin: 0; font-size: 1.05rem; color: #fff; }
.terms-band-head p { margin: 0; font-size: 0.85rem; color: rgba(255,255,255,0.55); }
.terms-grid {
  display: grid; gap: 0.85rem;
  grid-template-columns: repeat(4, 1fr);
}
.term-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px; padding: 1rem 1.05rem;
}
.term-card h3 {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--yellow); margin-bottom: 0.35rem;
}
.term-card p { margin: 0; color: #fff; font-size: 0.95rem; font-weight: 650; }

/* Why */
.why-grid {
  display: grid; gap: 1.15rem;
  grid-template-columns: repeat(4, 1fr);
}
.why-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  box-shadow: 0 4px 14px rgba(18,18,18,0.03);
}
.why-icon {
  width: 42px; height: 42px; color: var(--ink);
  margin-bottom: 0.75rem;
  background: var(--yellow);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  padding: 0.45rem;
}
.why-icon svg { width: 100%; height: 100%; }
.why-card h3 { font-size: 1rem; }
.why-card p { margin: 0; font-size: 0.9rem; }
.why-bsci-note {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.95rem;
}
.why-bsci-note a {
  color: var(--text);
  border-bottom: 2px solid var(--yellow);
  font-weight: 650;
}
.why-bsci-note a:hover { color: var(--ink); }

/* Credentials */
.cred-grid {
  display: grid; gap: 1.15rem;
  grid-template-columns: 1.4fr 1fr;
}
.cred-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem 1.3rem;
  box-shadow: 0 4px 14px rgba(18,18,18,0.03);
}
.cred-card-iso, .cred-card-bsci { grid-column: 1 / -1; }
.cred-card-top {
  display: grid; gap: 1.25rem;
  grid-template-columns: 160px 1fr;
  align-items: start;
}
.cert-thumb {
  display: block; width: 100%; padding: 0; border: 0;
  background: #f3f1ed; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border);
  cursor: zoom-in;
}
.cert-thumb img {
  width: 100%; height: 200px; object-fit: cover; object-position: top center;
  transition: transform 0.25s;
}
.cert-thumb:hover img { transform: scale(1.03); }
.cred-badge {
  display: inline-block; margin: 0 0 0.45rem;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem; font-weight: 750; letter-spacing: 0.04em;
  color: var(--ink); background: var(--yellow); border-radius: 4px;
}
.cred-card h3 { font-size: 1.08rem; margin-bottom: 0.35rem; }
.cred-meta {
  margin: 0 0 0.85rem;
  font-size: 0.88rem; color: var(--text-muted); font-weight: 600;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.cred-facts {
  list-style: none; display: grid; gap: 0.45rem; margin: 0;
}
.cred-facts li {
  position: relative; padding-left: 1rem;
  color: var(--text-muted); font-size: 0.9rem;
}
.cred-facts li::before {
  content: ""; position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--yellow);
}
.cred-patents {
  margin-top: 0.35rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  padding: 0.55rem 0.85rem;
}
.cred-patents summary {
  cursor: pointer; color: var(--text); font-weight: 650; font-size: 0.92rem;
  list-style: none;
}
.cred-patents summary::-webkit-details-marker { display: none; }
.cred-patents summary::before {
  content: "+"; display: inline-block; width: 1.1rem;
  color: #8a7200; font-weight: 700;
}
.cred-patents[open] summary::before { content: "–"; }
.cred-patent-list {
  list-style: none; margin: 0.75rem 0 0.25rem; display: grid; gap: 0.55rem;
}
.cred-patent-list li {
  padding: 0.55rem 0.7rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted); font-size: 0.86rem;
}

/* R&D */
.rd-grid {
  display: grid; gap: 1.15rem;
  grid-template-columns: 1.4fr 1fr;
}
.rd-lab-card { }
.rd-report-list {
  list-style: none; margin: 0.35rem 0 0; padding: 0;
  display: grid; gap: 0.55rem;
}
.rd-report-list li {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.7rem 0.85rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.rd-report-name { color: var(--text); font-size: 0.95rem; font-weight: 650; }
.rd-report-tag {
  flex-shrink: 0;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem; font-weight: 750; letter-spacing: 0.03em;
  color: var(--ink); background: var(--yellow);
}

/* Factory */
.factory-pillars {
  display: grid; gap: 1.15rem;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 1.75rem;
}
.factory-pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--yellow);
  border-radius: var(--radius);
  padding: 1.25rem 1.3rem 1.35rem;
  box-shadow: 0 4px 14px rgba(18,18,18,0.03);
}
.factory-pillar-top {
  display: flex; align-items: center; gap: 0.65rem;
  margin-bottom: 0.65rem;
}
.factory-pillar-num {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 2rem; height: 1.75rem;
  padding: 0 0.45rem;
  background: var(--yellow);
  color: var(--ink);
  border-radius: 8px;
  font-size: 0.75rem; font-weight: 800;
  letter-spacing: 0.04em;
}
.factory-pillar-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.factory-pillar h3 {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
}
.factory-pillar-list {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}
.factory-pillar-list li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.45;
}
.factory-pillar-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 0.4rem; height: 0.4rem;
  border-radius: 50%;
  background: var(--yellow);
}
.factory-grid {
  display: grid; gap: 1.15rem;
  grid-template-columns: repeat(3, 1fr);
}
.factory-grid figure {
  margin: 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 4px 14px rgba(18,18,18,0.03);
}
.factory-grid button.factory-thumb {
  display: block; width: 100%; padding: 0; border: 0;
  background: #eee; cursor: zoom-in;
}
.factory-grid img {
  width: 100%; height: 220px; object-fit: cover;
  background: #eee; transition: transform 0.25s;
}
.factory-grid button:hover img { transform: scale(1.03); }
.factory-grid figcaption {
  padding: 0.75rem 1rem; font-size: 0.85rem; color: var(--text-muted);
}

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 80;
  display: none; align-items: center; justify-content: center;
  padding: 1.5rem;
  background: rgba(10, 10, 10, 0.82);
  backdrop-filter: blur(6px);
}
.lightbox.is-open { display: flex; }
.lightbox-inner {
  position: relative; max-width: min(960px, 100%);
  max-height: 90vh;
}
.lightbox-inner img {
  max-height: 80vh; width: auto; max-width: 100%;
  margin: 0 auto; border-radius: 10px;
  box-shadow: var(--shadow);
}
.lightbox-cap {
  margin: 0.75rem 0 0; text-align: center;
  color: rgba(255,255,255,0.75); font-size: 0.9rem;
}
.lightbox-close {
  position: absolute; top: -0.5rem; right: -0.5rem;
  width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2); background: #1a1a1a;
  color: #fff; font-size: 1.25rem; line-height: 1;
  cursor: pointer;
}
.lightbox-close:hover { background: var(--yellow); color: var(--ink); border-color: var(--yellow); }

/* Contact */
.contact-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1fr 1.15fr;
}
.contact-info h3 { font-size: 1.05rem; }
.contact-info > p { margin-bottom: 0.35rem; }
.contact-info strong { color: var(--text); }
.contact-list { list-style: none; margin-top: 1.25rem; display: grid; gap: 1rem; }
.contact-list li {
  display: grid; gap: 0.2rem;
  padding-bottom: 1rem; border-bottom: 1px solid var(--border);
}
.contact-list .label {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: #8a7200; font-weight: 750;
}
.contact-list span, .contact-list a { color: var(--text-muted); font-size: 0.95rem; }
.email-list { display: flex; flex-direction: column; gap: 0.25rem; }
.email-list a { color: var(--ink); font-weight: 650; }
.email-list a:hover { color: #000; border-bottom: 2px solid var(--yellow); }
.email-role { color: var(--text-muted); font-size: 0.78rem; margin-left: 0.35rem; }

.contact-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem;
  box-shadow: var(--shadow);
}
.form-row { margin-bottom: 1rem; display: grid; gap: 0.35rem; }
.form-row label { font-size: 0.85rem; font-weight: 650; color: var(--text); }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%; padding: 0.7rem 0.85rem;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); font-family: inherit; font-size: 0.95rem;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none; border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-row input.is-invalid,
.form-row textarea.is-invalid {
  border-color: #d35a4a;
  box-shadow: 0 0 0 3px rgba(211,90,74,0.15);
}
.form-error {
  display: none; margin: 0; font-size: 0.8rem; color: #b33a2b;
}
.form-error.is-visible { display: block; }
.form-row textarea { resize: vertical; min-height: 120px; }
.form-note { margin: 0.85rem 0 0; font-size: 0.8rem; }
.contact-form .btn { width: 100%; margin-top: 0.25rem; }

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.08); padding: 2rem 0;
  background: var(--ink); color: #fff;
}
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 1.25rem;
  align-items: center; justify-content: space-between;
}
.footer-brand { display: flex; align-items: center; gap: 0.75rem; }
.footer-brand .logo-mark {
  background: #fff; height: 36px; padding: 0.25rem 0.45rem;
}
.footer-brand strong { letter-spacing: 0.08em; color: #fff; }
.footer-brand p { margin: 0; font-size: 0.8rem; color: rgba(255,255,255,0.55); }
.footer-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.25rem;
}
.footer-legal { margin: 0; font-size: 0.8rem; color: rgba(255,255,255,0.45); }

/* Trust strip under hero */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.trust-item {
  text-align: left;
}
.trust-item strong {
  display: block;
  font-size: 1.05rem;
  color: var(--ink);
  letter-spacing: -0.02em;
}
.trust-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 1.75rem; }
  .hero-visual { order: -1; }
  .hero-visual-frame img { max-height: 340px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .cred-grid, .rd-grid { grid-template-columns: 1fr; }
  .cred-card-top { grid-template-columns: 140px 1fr; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .terms-grid { grid-template-columns: repeat(2, 1fr); }
  .factory-pillars { grid-template-columns: 1fr; }
  .factory-grid { grid-template-columns: 1fr; }
  .factory-grid img { height: 200px; }
  .cat-grid { grid-template-columns: 1fr; }
  .trust-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .logo-legal { display: none; }
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: var(--header-h);
    flex-direction: column; background: #111;
    border-bottom: 1px solid rgba(255,255,255,0.1); padding: 1rem 1.25rem; gap: 0.25rem;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.7rem 0; }
  .menu-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }
  .header-actions .lang-switcher { order: -1; }
  .lang-label { font-size: 0.65rem; }
  .product-grid { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .cred-card-top { grid-template-columns: 1fr; }
  .cert-thumb img { height: 220px; }
  .terms-grid { grid-template-columns: 1fr; }
  .hero { padding: 2rem 0 1.5rem; }
  .trust-strip { grid-template-columns: 1fr 1fr; gap: 1rem; }
  .filter-chip { font-size: 0.78rem; padding: 0.35rem 0.75rem; }
}