:root {
  --ink: #0b1722;
  --ink-soft: #334353;
  --navy: #09293d;
  --navy-2: #0d4057;
  --teal: #0c8a84;
  --teal-dark: #086963;
  --gold: #c99b3b;
  --sand: #f4f0e8;
  --paper: #ffffff;
  --mist: #edf3f4;
  --line: #d9e2e5;
  --success: #18785f;
  --shadow: 0 22px 60px rgba(5, 28, 41, .12);
  --shadow-sm: 0 10px 30px rgba(5, 28, 41, .08);
  --radius: 22px;
  --radius-sm: 14px;
  --max: 1200px;
  --font: "Segoe UI", Tahoma, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
::selection { color: #fff; background: var(--teal); }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--navy);
  border-radius: 8px;
}
.skip-link:focus { top: 16px; }

.shell { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-dark { color: #fff; background: var(--navy); }
.section-sand { background: var(--sand); }
.section-mist { background: var(--mist); }
.section-line { border-top: 1px solid var(--line); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  color: var(--teal-dark);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--gold); }
.section-dark .eyebrow { color: #8ee1d7; }

h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.08; letter-spacing: -.035em; }
h1 { margin-bottom: 24px; font-size: clamp(2.8rem, 6vw, 5.25rem); }
h2 { margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.35rem); }
h3 { margin-bottom: 12px; font-size: 1.35rem; }
h4 { margin-bottom: 10px; font-size: 1.05rem; }
p { color: var(--ink-soft); }
.section-dark p { color: #bcd0d9; }
.lead { max-width: 700px; font-size: 1.13rem; }
.muted { color: #667684; }
.text-gold { color: var(--gold); }
.text-teal { color: #8ee1d7; }

.alert-bar {
  color: #d9edf3;
  background: #061f2e;
  font-size: .84rem;
}
.alert-bar .shell {
  min-height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.alert-bar a { color: #fff; font-weight: 700; }
.alert-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  background: #35c4a8;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(53, 196, 168, .12);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(217, 226, 229, .9);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.nav-wrap { min-height: 76px; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--navy);
  border-radius: 11px 11px 11px 3px;
  box-shadow: 0 8px 18px rgba(9, 41, 61, .18);
}
.brand-mark svg { width: 26px; height: 26px; }
.brand-name { line-height: 1.05; }
.brand-name strong { display: block; font-size: .98rem; letter-spacing: .08em; }
.brand-name span { color: #71808d; font-size: .65rem; letter-spacing: .18em; text-transform: uppercase; }
.site-header .brand {
  width: 196px;
  height: 54px;
  background: url("../img/brand/qinrun-logo.png") left center / contain no-repeat;
}
.site-footer .brand {
  width: 248px;
  height: 72px;
  background: url("../img/brand/qinrun-logo-white.png") left center / contain no-repeat;
}
.site-header .brand > *, .site-footer .brand > * { visibility: hidden; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 11px 13px;
  color: #304352;
  border-radius: 9px;
  font-size: .9rem;
  font-weight: 700;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--teal-dark); background: #edf7f5; }
.nav-actions { display: flex; align-items: center; gap: 9px; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 11px;
}
.menu-toggle span { display: block; width: 19px; height: 2px; margin: 4px auto; background: currentColor; }

.btn {
  min-height: 46px;
  padding: 11px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  color: #fff;
  background: var(--teal);
  border: 1px solid var(--teal);
  border-radius: 11px;
  font-size: .9rem;
  font-weight: 800;
  line-height: 1;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); background: var(--teal-dark); border-color: var(--teal-dark); box-shadow: 0 10px 24px rgba(12, 138, 132, .25); }
.btn-secondary { color: var(--navy); background: #fff; border-color: var(--line); }
.btn-secondary:hover { color: var(--teal-dark); background: #f7fbfb; border-color: #b8d4d2; box-shadow: var(--shadow-sm); }
.btn-light { color: var(--navy); background: #fff; border-color: #fff; }
.btn-light:hover { color: var(--navy); background: #e9f3f2; border-color: #e9f3f2; }
.btn-outline-light { color: #fff; background: transparent; border-color: rgba(255,255,255,.35); }
.btn-outline-light:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.65); }
.btn-sm { min-height: 40px; padding: 9px 14px; font-size: .84rem; }
.btn-arrow { font-size: 1.1rem; transition: transform .2s ease; }
.btn:hover .btn-arrow { transform: translateX(3px); }

.hero { position: relative; overflow: hidden; color: #fff; background: var(--navy); }
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .17;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to right, #000, transparent 72%);
}
.hero::after {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -220px;
  bottom: -310px;
  background: radial-gradient(circle, rgba(12,138,132,.48), transparent 67%);
}
.hero .shell { position: relative; z-index: 2; }
.hero-grid { min-height: 690px; display: grid; grid-template-columns: 1.04fr .96fr; align-items: center; gap: 60px; padding: 72px 0; }
.hero h1 { max-width: 760px; }
.hero h1 span { color: #8ee1d7; }
.hero-copy { max-width: 640px; color: #c7d8df; font-size: 1.1rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 40px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.14); }
.hero-proof-item { display: flex; gap: 10px; align-items: flex-start; color: #dceaf0; font-size: .88rem; }
.check {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  display: grid;
  place-items: center;
  color: #062a29;
  background: #8ee1d7;
  border-radius: 50%;
  font-size: .72rem;
  font-weight: 900;
}
.hero-visual { position: relative; }
.visual-frame {
  position: relative;
  padding: 16px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 30px;
  box-shadow: 0 30px 80px rgba(0,0,0,.24);
  backdrop-filter: blur(8px);
}
.visual-frame img { width: 100%; border-radius: 20px; }
.visual-card {
  position: absolute;
  right: -18px;
  bottom: -26px;
  width: 220px;
  padding: 18px;
  color: var(--ink);
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.visual-card strong { display: block; color: var(--teal-dark); font-size: 1.8rem; line-height: 1; }
.visual-card span { display: block; margin-top: 7px; color: #61707c; font-size: .78rem; }

.trust-strip { background: #fff; border-bottom: 1px solid var(--line); }
.trust-items { display: grid; grid-template-columns: repeat(4, 1fr); }
.trust-item { min-height: 105px; padding: 24px; display: flex; align-items: center; gap: 14px; border-right: 1px solid var(--line); }
.trust-item:first-child { border-left: 1px solid var(--line); }
.trust-icon {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  color: var(--teal-dark);
  background: #edf7f5;
  border-radius: 12px;
}
.trust-icon svg { width: 22px; height: 22px; }
.trust-item strong { display: block; font-size: .92rem; }
.trust-item span { display: block; color: #71808d; font-size: .76rem; line-height: 1.35; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 50px; margin-bottom: 48px; }
.section-head > div { max-width: 750px; }
.section-head p { margin-bottom: 0; }

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 38px rgba(9,41,61,.05);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-5px); border-color: #b8d4d2; box-shadow: var(--shadow); }
.card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--teal), var(--gold)); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--navy);
  border-radius: 15px 15px 15px 5px;
}
.card-icon svg { width: 26px; height: 26px; }
.card p:last-child { margin-bottom: 0; }
.card-list { margin: 18px 0 0; padding: 0; list-style: none; }
.card-list li { position: relative; padding-left: 20px; margin: 8px 0; color: #526270; font-size: .9rem; }
.card-list li::before { content: ""; position: absolute; left: 0; top: .65em; width: 7px; height: 7px; background: var(--teal); border-radius: 50%; }

.split { display: grid; grid-template-columns: .93fr 1.07fr; gap: 70px; align-items: center; }
.split.reverse { grid-template-columns: 1.07fr .93fr; }
.media-panel { position: relative; }
.media-panel img { border-radius: 26px; box-shadow: var(--shadow); }
.media-badge {
  position: absolute;
  left: -22px;
  bottom: 30px;
  max-width: 230px;
  padding: 18px 20px;
  color: #fff;
  background: var(--teal);
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.media-badge strong { display: block; font-size: 1.1rem; }
.media-badge span { color: #d8f5f1; font-size: .76rem; }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 32px; }
.stat { padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 15px; }
.stat strong { display: block; color: var(--teal-dark); font-size: 1.45rem; line-height: 1.1; }
.stat span { color: #697986; font-size: .76rem; }

.checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 28px; }
.check-item { display: flex; gap: 12px; padding: 16px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); border-radius: 13px; }
.check-item strong { display: block; margin-bottom: 3px; color: #fff; font-size: .9rem; }
.check-item span { color: #aac2cc; font-size: .78rem; }

.process { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.process::before { content: ""; position: absolute; left: 6%; right: 6%; top: 25px; height: 1px; background: #bfd2d2; }
.process-step { position: relative; z-index: 1; text-align: center; }
.process-num {
  width: 52px;
  height: 52px;
  margin: 0 auto 15px;
  display: grid;
  place-items: center;
  color: var(--teal-dark);
  background: #fff;
  border: 1px solid #b9d6d3;
  border-radius: 50%;
  font-weight: 900;
  box-shadow: 0 8px 20px rgba(9,41,61,.07);
}
.process-step strong { display: block; margin-bottom: 6px; font-size: .9rem; }
.process-step span { display: block; color: #71808d; font-size: .75rem; line-height: 1.45; }

.document-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.document-item { padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.document-item strong { display: flex; gap: 10px; align-items: center; font-size: .95rem; }
.document-item p { margin: 8px 0 0; font-size: .84rem; }
.doc-num { color: var(--gold); font-size: .74rem; font-weight: 900; letter-spacing: .08em; }

.sector-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.sector {
  min-height: 150px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
  background: linear-gradient(145deg, var(--navy-2), var(--navy));
  border-radius: 17px;
}
.sector:nth-child(2n) { background: linear-gradient(145deg, #0d756f, #084f4d); }
.sector:nth-child(3n) { background: linear-gradient(145deg, #725c2d, #3d3119); }
.sector small { color: rgba(255,255,255,.62); font-size: .68rem; letter-spacing: .13em; text-transform: uppercase; }
.sector strong { font-size: 1.03rem; line-height: 1.25; }

.cta-band { position: relative; overflow: hidden; padding: 62px; color: #fff; background: linear-gradient(120deg, var(--navy), #0c595c); border-radius: 28px; box-shadow: var(--shadow); }
.cta-band::after { content: ""; position: absolute; width: 360px; height: 360px; right: -100px; bottom: -230px; border: 60px solid rgba(255,255,255,.06); border-radius: 50%; }
.cta-band-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 50px; }
.cta-band h2 { max-width: 760px; margin-bottom: 12px; }
.cta-band p { margin-bottom: 0; color: #c8dce1; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; align-items: start; }
.faq-list { display: grid; gap: 10px; }
details { padding: 20px 22px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
details[open] { border-color: #b9d6d3; box-shadow: var(--shadow-sm); }
summary { cursor: pointer; font-weight: 800; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--teal); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { margin: 14px 0 0; font-size: .9rem; }

.page-hero { position: relative; overflow: hidden; color: #fff; background: var(--navy); }
.page-hero::after { content: ""; position: absolute; width: 520px; height: 520px; right: -180px; top: -270px; background: radial-gradient(circle, rgba(12,138,132,.45), transparent 70%); }
.page-hero .shell { position: relative; z-index: 1; }
.page-hero-grid { min-height: 430px; display: grid; grid-template-columns: 1fr .72fr; align-items: center; gap: 70px; padding: 70px 0; }
.page-hero h1 { font-size: clamp(2.5rem, 5vw, 4.4rem); }
.page-hero p { max-width: 700px; color: #c5d6dd; font-size: 1.08rem; }
.breadcrumb { margin-bottom: 18px; color: #8fb0bd; font-size: .78rem; }
.breadcrumb a { color: #fff; }
.page-hero-card { padding: 28px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); border-radius: 22px; backdrop-filter: blur(8px); }
.page-hero-card > span { display: block; margin-bottom: 9px; color: #8ee1d7; font-size: .72rem; font-weight: 900; letter-spacing: .14em; text-transform: uppercase; }
.page-hero-card strong { display: block; margin-bottom: 14px; font-size: 1.3rem; }
.page-hero-card ul { margin: 0; padding-left: 20px; color: #bed3da; font-size: .86rem; }

.product-showcase { display: grid; gap: 22px; }
.product-row { display: grid; grid-template-columns: .82fr 1.18fr; overflow: hidden; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.product-row:nth-child(even) { grid-template-columns: 1.18fr .82fr; }
.product-row:nth-child(even) .product-art { order: 2; }
.product-art { min-height: 360px; display: grid; place-items: center; background: #e8f1f1; }
.product-art svg { width: 82%; height: auto; }
.product-content { padding: 46px; }
.product-content h3 { font-size: 1.8rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0 0; }
.tag { padding: 6px 10px; color: #48606f; background: #f1f5f6; border-radius: 999px; font-size: .72rem; font-weight: 700; }

.contact-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.contact-panel { padding: 34px; background: var(--navy); color: #fff; border-radius: 24px; box-shadow: var(--shadow); }
.contact-panel h3 { color: #fff; }
.contact-panel p { color: #b9cdd5; }
.contact-list { margin: 28px 0 0; padding: 0; list-style: none; }
.contact-list li { padding: 16px 0; border-top: 1px solid rgba(255,255,255,.12); }
.contact-list span { display: block; color: #8fb0bd; font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }
.contact-list a, .contact-list strong { color: #fff; }
.inquiry-form { padding: 36px; background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .82rem; font-weight: 800; }
.field label span { color: #8d9aa4; font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 14px;
  color: var(--ink);
  background: #fbfcfc;
  border: 1px solid #cfdbdf;
  border-radius: 10px;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 4px rgba(12,138,132,.1); }
.form-note { margin: 14px 0 0; color: #778691; font-size: .74rem; }
.honeypot { position: absolute !important; left: -5000px !important; }

.site-footer { padding: 70px 0 30px; color: #b8cbd3; background: #061f2e; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr 1fr; gap: 50px; }
.footer-brand { color: #fff; }
.footer-brand p { max-width: 340px; margin-top: 18px; color: #8faab5; font-size: .88rem; }
.footer-title { margin-bottom: 15px; color: #fff; font-size: .9rem; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: #9db6c0; font-size: .84rem; }
.footer-links a:hover { color: #8ee1d7; }
.footer-contact { margin-top: 16px; color: #fff; font-size: .9rem; }
.footer-bottom { margin-top: 50px; padding-top: 24px; display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(255,255,255,.1); color: #718e9a; font-size: .76rem; }

.floating-wa {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 80;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  color: #fff;
  background: #1f9d66;
  border: 0;
  border-radius: 50%;
  box-shadow: 0 14px 35px rgba(15,90,58,.32);
}
.floating-wa svg { width: 27px; height: 27px; }
.floating-wa:hover { transform: translateY(-3px) scale(1.03); }
.floating-wa::after { content: attr(data-label); position: absolute; right: 68px; width: max-content; padding: 8px 10px; color: #fff; background: var(--ink); border-radius: 8px; font-size: .74rem; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.floating-wa:hover::after { opacity: 1; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1020px) {
  .site-header { -webkit-backdrop-filter: none; backdrop-filter: none; }
  .site-header .brand { width: 158px; height: 46px; }
  .site-footer .brand { width: 214px; height: 64px; }
  .catalog-card::after { top: 14px; right: 14px; width: 60px; height: 27px; opacity: .22; }
  .site-header .brand, .menu-toggle { position: relative; z-index: 95; }
  .nav { position: fixed; inset: 0; z-index: 90; height: 100dvh; padding: max(112px, calc(88px + env(safe-area-inset-top))) 22px max(28px, env(safe-area-inset-bottom)); display: none; flex-direction: column; align-items: stretch; overflow-y: auto; background: #fff; }
  .nav.open { display: flex; }
  .nav a { padding: 16px; font-size: 1.05rem; border-bottom: 1px solid #edf1f2; border-radius: 0; }
  .nav a:first-child { border-top: 1px solid #edf1f2; }
  .menu-toggle { display: block; margin-left: auto; }
  .nav-actions .btn { display: none; }
  .hero-grid, .page-hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { max-width: 680px; }
  .visual-card { right: 6px; }
  .trust-items { grid-template-columns: 1fr 1fr; }
  .trust-item { border-bottom: 1px solid var(--line); }
  .card-grid, .sector-grid { grid-template-columns: 1fr 1fr; }
  .split, .split.reverse { grid-template-columns: 1fr; gap: 44px; }
  .split.reverse .media-panel { order: -1; }
  .process { grid-template-columns: repeat(3, 1fr); gap: 28px 12px; }
  .process::before { display: none; }
  .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
}

@media (max-width: 720px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .section { padding: 72px 0; }
  .section-sm { padding: 52px 0; }
  .alert-bar .shell { justify-content: center; text-align: center; }
  .alert-bar .alert-right { display: none; }
  .hero-grid { min-height: auto; padding: 56px 0 70px; }
  .hero h1 { font-size: clamp(2.55rem, 13vw, 3.8rem); }
  .hero-proof { gap: 14px; }
  .hero-proof-item { width: 100%; }
  .visual-frame { padding: 10px; border-radius: 22px; }
  .visual-card { position: static; width: 100%; margin: 10px 0 0; }
  .trust-items { grid-template-columns: 1fr; }
  .trust-item, .trust-item:first-child { border-left: 0; }
  .section-head { display: block; margin-bottom: 32px; }
  .section-head .btn { margin-top: 20px; }
  .card-grid, .sector-grid, .checklist, .document-grid, .stat-grid { grid-template-columns: 1fr; }
  .card { padding: 24px; }
  .media-badge { position: static; max-width: none; margin: -20px 18px 0; }
  .process { grid-template-columns: 1fr 1fr; }
  .process-step { text-align: left; padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
  .process-num { margin: 0 0 12px; }
  .cta-band { padding: 38px 26px; }
  .cta-band-grid { grid-template-columns: 1fr; gap: 28px; }
  .page-hero-grid { min-height: auto; padding: 52px 0 62px; }
  .product-row, .product-row:nth-child(even) { grid-template-columns: 1fr; }
  .product-row:nth-child(even) .product-art { order: 0; }
  .product-art { min-height: 250px; }
  .product-content { padding: 28px; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .inquiry-form { padding: 24px; }
  .contact-panel { padding: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { 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; }
  .reveal { opacity: 1; transform: none; }
}

/* Catalog-specific components */
.catalog-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.catalog-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 12px 32px rgba(9,41,61,.06);
  transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.catalog-card:hover { transform: translateY(-5px); border-color: #b8d4d2; box-shadow: var(--shadow); }
.catalog-card::after { content: ""; position: absolute; top: 18px; right: 18px; z-index: 2; width: 72px; height: 32px; background: url("../img/brand/qinrun-logo.png") center / contain no-repeat; opacity: .24; pointer-events: none; }
.catalog-card img { width: 100%; aspect-ratio: 1 / 1; padding: 18px; object-fit: contain; object-position: center; background: linear-gradient(145deg, #ffffff, #f3f7f7); border-bottom: 1px solid var(--line); }
.catalog-card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.catalog-card-code { margin-bottom: 7px; color: var(--teal-dark); font-size: .72rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.catalog-card h3 { font-size: 1.08rem; line-height: 1.2; }
.catalog-card p { margin-bottom: 16px; font-size: .84rem; }
.catalog-card .card-list { margin-top: auto; }
.catalog-card .card-list li { font-size: .78rem; }

.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.cert-card {
  min-height: 144px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
}
.cert-mark { width: 42px; height: 42px; display: grid; place-items: center; color: #fff; background: var(--teal); border-radius: 12px 12px 12px 4px; font-size: .72rem; font-weight: 900; }
.cert-card strong { display: block; margin-top: 18px; font-size: .92rem; line-height: 1.25; }
.cert-card span { display: block; margin-top: 5px; color: #71808d; font-size: .72rem; line-height: 1.35; }

.metric-band { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: #fff; }
.metric-cell { min-height: 150px; padding: 28px; display: flex; flex-direction: column; justify-content: center; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.metric-cell:nth-child(3n) { border-right: 0; }
.metric-cell:nth-last-child(-n+3) { border-bottom: 0; }
.metric-cell strong { color: var(--teal-dark); font-size: clamp(2rem, 4vw, 3rem); line-height: 1; letter-spacing: -.04em; }
.metric-cell span { margin-top: 10px; color: #5f707d; font-size: .82rem; }

.market-panel { padding: 34px; background: #fff; border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow-sm); }
.market-panel .tag-row { margin-top: 20px; }

@media (max-width: 1020px) {
  .catalog-grid, .cert-grid { grid-template-columns: 1fr 1fr; }
  .metric-band { grid-template-columns: 1fr 1fr; }
  .metric-cell:nth-child(3n) { border-right: 1px solid var(--line); }
  .metric-cell:nth-child(2n) { border-right: 0; }
  .metric-cell:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }
  .metric-cell:nth-last-child(-n+2) { border-bottom: 0; }
}
@media (max-width: 720px) {
  .catalog-grid, .cert-grid, .metric-band { grid-template-columns: 1fr; }
  .metric-cell, .metric-cell:nth-child(3n), .metric-cell:nth-child(2n), .metric-cell:nth-last-child(-n+2), .metric-cell:nth-last-child(-n+3) { border-right: 0; border-bottom: 1px solid var(--line); }
  .metric-cell:last-child { border-bottom: 0; }
}

/* Compact certification assurance for trading-company positioning */
.cert-assurance {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 46px;
  align-items: center;
  padding: 42px;
  background: linear-gradient(135deg, #f4f8f8, #e8f2f1);
  border: 1px solid #cfe0df;
  border-radius: 24px;
}
.cert-assurance h2 { max-width: 680px; }
.cert-assurance p { margin-bottom: 0; }
.cert-pills { display: flex; flex-wrap: wrap; gap: 9px; }
.cert-pill { padding: 10px 13px; color: #0a5960; background: #fff; border: 1px solid #c6dddc; border-radius: 999px; font-size: .78rem; font-weight: 800; }
.cert-assurance-actions { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 10px; }
@media (max-width: 820px) { .cert-assurance { grid-template-columns: 1fr; gap: 28px; padding: 28px; } }