:root {
  --ink: #10234a;
  --ink-soft: #31436b;
  --muted: #6a7591;
  --sky: #35a7ff;
  --sky-soft: #eaf7ff;
  --sun: #ffd166;
  --coral: #ff6042;
  --orange: #ff8a2a;
  --teal: #2dd4bf;
  --white: #ffffff;
  --line: #dbe7f4;
  --shadow: 0 24px 60px rgba(22, 61, 115, 0.14);
  --radius: 8px;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: linear-gradient(180deg, rgba(235, 248, 255, 0.86), rgba(255, 255, 255, 0) 520px), var(--white);
}
body.nav-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; }
.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  height: 74px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 0 clamp(20px, 4vw, 64px);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(219,231,244,.9);
  transition: box-shadow 180ms ease, background 180ms ease;
}
.site-header.scrolled {
  box-shadow: 0 10px 30px rgba(20,61,112,.1);
  background: rgba(255,255,255,.97);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--sky-soft);
}
.brand-text { display: inline-flex; align-items: baseline; gap: 5px; }
.brand-text span { font-weight: 800; color: var(--ink); }
.brand-text strong {
  font-family: Inter, system-ui, sans-serif;
  font-size: .54em;
  font-weight: 800;
  color: var(--coral);
  transform: translateY(-1px) rotate(-4deg);
}
.main-nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: clamp(18px,3vw,44px);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
}
.main-nav a {
  position: relative;
  padding: 28px 0;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 19px;
  height: 2px;
  transform: scaleX(0);
  background: var(--coral);
  transition: transform 160ms ease;
}
.main-nav a:hover::after,
.main-nav a.active-page::after { transform: scaleX(1); }
.header-cta-group { display: inline-flex; align-items: center; gap: 10px; }
.header-cta, .button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 0 18px;
  font-size: 13px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, color 160ms ease;
}
.header-cta, .button-primary {
  color: #fff;
  background: linear-gradient(135deg,var(--coral),var(--orange));
  box-shadow: 0 14px 30px rgba(255,96,66,.2);
}
.header-cta-secondary, .button-secondary {
  color: var(--ink);
  background: rgba(255,255,255,.82);
  border: 1px solid var(--line);
  box-shadow: none;
}
.button:hover, .header-cta:hover { transform: translateY(-2px); }
.nav-toggle { display: none; }
.section-pad { padding: clamp(72px, 9vw, 118px) clamp(20px, 5vw, 76px); }
.section-heading {
  max-width: 900px;
  margin: 0 auto 36px;
  text-align: center;
}
.section-heading h1,
.section-heading h2 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(44px, 6vw, 76px);
  line-height: 1;
  letter-spacing: 0;
}
.section-heading p {
  margin: 18px auto 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}
.hub-hero {
  min-height: 660px;
  display: grid;
  align-items: end;
  padding: 130px clamp(20px, 5vw, 76px) 72px;
  background:
    linear-gradient(90deg, rgba(16,35,74,.86) 0%, rgba(16,35,74,.56) 36%, rgba(16,35,74,.16) 68%, rgba(16,35,74,.02) 100%),
    url("https://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Skyline_of_Beijing_CBD_with_B-5906_approaching_%2820211016171955%29_%281%29.jpg/3840px-Skyline_of_Beijing_CBD_with_B-5906_approaching_%2820211016171955%29_%281%29.jpg") center/cover;
}
.hub-copy { max-width: 840px; color: #fff; }
.hub-copy h1 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(54px, 8vw, 108px);
  line-height: .98;
}
.hub-copy p {
  max-width: 710px;
  margin: 24px 0 0;
  color: rgba(255,255,255,.9);
  font-size: clamp(17px,1.6vw,22px);
  line-height: 1.58;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.trust-line span, .city-facts span {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: var(--radius);
  padding: 0 14px;
  color: #fff;
  background: rgba(255,255,255,.14);
  backdrop-filter: blur(14px);
  font-size: 13px;
  font-weight: 800;
}
.city-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 18px;
}
.city-card {
  min-height: 315px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: end;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.8);
  background-image: linear-gradient(180deg, rgba(16,35,74,.05), rgba(16,35,74,.68)), var(--city-image);
  background-size: cover;
  background-position: center;
  box-shadow: 0 20px 50px rgba(15,49,98,.14);
  transition: transform 180ms ease, box-shadow 180ms ease;
}
.city-card:hover, .city-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 28px 60px rgba(15,49,98,.2);
}
.city-card div {
  position: relative;
  padding: 24px;
  color: #fff;
}
.city-card h2, .city-card h3 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 34px;
  line-height: 1;
}
.city-card p {
  max-width: 350px;
  margin: 10px 0 0;
  color: rgba(255,255,255,.9);
  font-size: 14px;
  line-height: 1.5;
}
.city-link {
  display: inline-flex;
  margin-top: 14px;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.hub-note {
  max-width: 1180px;
  margin: 38px auto 0;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 18px;
}
.panel, .city-section, .city-sidebar-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 40px rgba(15,49,98,.06);
}
.panel { padding: clamp(24px,4vw,38px); }
.panel h2, .panel h3 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(28px,3vw,42px);
  line-height: 1.05;
}
.panel p, .panel li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.68;
}
.panel p { margin: 14px 0 0; }
.city-hero {
  position: relative;
  min-height: 650px;
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 122px clamp(20px,5vw,76px) 72px;
  isolation: isolate;
  background:
    linear-gradient(90deg, rgba(16,35,74,.86) 0%, rgba(16,35,74,.58) 38%, rgba(16,35,74,.18) 70%, rgba(16,35,74,.02) 100%),
    linear-gradient(180deg, rgba(16,35,74,.04), rgba(16,35,74,.46)),
    var(--city-image) center/cover;
}
.city-hero-copy { max-width: 800px; color: #fff; }
.back-link {
  display: inline-flex;
  margin-bottom: 24px;
  color: rgba(255,255,255,.92);
  font-size: 14px;
  font-weight: 800;
}
.city-hero h1 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(58px,8vw,112px);
  line-height: .98;
}
.city-hero p {
  max-width: 670px;
  margin: 22px 0 0;
  color: rgba(255,255,255,.92);
  font-size: clamp(17px,1.6vw,22px);
  line-height: 1.58;
}
.city-facts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.breadcrumb {
  max-width: 1180px;
  margin: 0 auto 20px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}
.breadcrumb a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 3px; }
.city-content {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0,1fr) 330px;
  gap: 42px;
}
.city-main { display: grid; gap: 34px; }
.city-section { padding: clamp(26px,4vw,42px); scroll-margin-top: 96px; }
.city-section h2, .city-sidebar-card h2 {
  margin: 0;
  color: var(--ink);
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(30px,3vw,44px);
  line-height: 1.04;
}
.city-section p, .city-section li, .city-sidebar-card p, .city-sidebar-card li {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.68;
}
.city-section p { margin: 16px 0 0; }
.quick-answer {
  border-color: rgba(53,167,255,.38);
  background: linear-gradient(135deg, rgba(234,247,255,.9), #fff);
}
.key-facts {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}
.key-facts li, .city-list li, .itinerary li, .faq-item {
  border: 1px solid rgba(219,231,244,.95);
  border-radius: var(--radius);
  padding: 14px 16px;
  background: #f8fcff;
}
.city-list {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}
.city-list strong { display: block; margin-bottom: 4px; color: var(--ink); }
.itinerary {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.itinerary li {
  position: relative;
  padding-left: 58px;
}
.itinerary li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 15px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg,var(--sky),var(--teal));
  font-size: 13px;
  font-weight: 800;
}
.city-sidebar {
  position: sticky;
  top: 98px;
  align-self: start;
  display: grid;
  gap: 16px;
}
.city-sidebar-card { padding: 24px; }
.city-sidebar-card h2 { font-size: 30px; }
.city-sidebar-card ul {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding-left: 18px;
}
.city-cta {
  color: #fff;
  background: linear-gradient(135deg,rgba(255,96,66,.95),rgba(255,138,42,.95));
}
.city-cta h2, .city-cta p, .city-cta li { color: #fff; }
.city-cta .button { margin-top: 20px; color: var(--coral); background: #fff; box-shadow: none; }
.source-note {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}
.source-note a { text-decoration: underline; text-underline-offset: 3px; }
.byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  margin: 0 0 18px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}
.byline a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.byline-sep { display: inline-block; margin: 0 6px 0 0; color: var(--muted); }
.byline-author, .byline-published, .byline-updated { display: inline-flex; align-items: center; }
.lead-answer {
  margin: 0 0 14px !important;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.55;
}
.city-quote {
  margin: 22px 0 0;
  padding: 18px 22px;
  border-left: 3px solid var(--sky);
  background: rgba(53,167,255,.08);
  border-radius: var(--radius);
}
.city-quote blockquote {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  font-style: italic;
}
.city-quote figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.city-quote figcaption a { color: var(--ink-soft); text-decoration: underline; text-underline-offset: 3px; }
.source-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}
.source-list a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.faq-grid {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}
.faq-item h3 {
  margin: 0;
  font-size: 17px;
  line-height: 1.35;
}
.faq-item p { margin-top: 8px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 14px;
  margin-top: 20px;
}
.related-card {
  min-height: 150px;
  display: flex;
  align-items: end;
  overflow: hidden;
  border-radius: var(--radius);
  padding: 18px;
  color: #fff;
  background-image: linear-gradient(180deg, rgba(16,35,74,.06), rgba(16,35,74,.7)), var(--city-image);
  background-size: cover;
  background-position: center;
}
.related-card strong { display: block; font-size: 22px; font-family: "Playfair Display", Georgia, serif; }
.related-card span { display: block; margin-top: 6px; color: rgba(255,255,255,.88); font-size: 13px; line-height: 1.35; }
.closing {
  background: linear-gradient(135deg, rgba(234,247,255,.86), rgba(255,255,255,1));
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px,5vw,76px);
  border-top: 1px solid var(--line);
  background: #fff;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; color: var(--muted); font-size: 13px; font-weight: 700; }
.site-footer p { margin: 0; color: var(--muted); font-size: 13px; }
.whatsapp-fab {
  position: fixed;
  z-index: 25;
  right: 22px;
  bottom: 22px;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #25d366;
  box-shadow: 0 18px 36px rgba(37,211,102,.28);
}
.whatsapp-fab svg { width: 32px; height: 32px; }
@media (max-width: 980px) {
  .site-header { grid-template-columns: auto auto; justify-content: space-between; }
  .nav-toggle {
    display: inline-flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fff;
  }
  .nav-toggle span {
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--ink);
    transition: transform 160ms ease;
  }
  .nav-toggle span:first-child { transform: translateY(-5px); }
  .nav-toggle span:last-child { transform: translateY(5px); }
  body.nav-open .nav-toggle span:first-child { transform: rotate(45deg); }
  body.nav-open .nav-toggle span:last-child { transform: rotate(-45deg); }
  .main-nav {
    position: fixed;
    inset: 74px 0 auto 0;
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 20px 24px;
    background: rgba(255,255,255,.98);
    border-bottom: 1px solid var(--line);
  }
  body.nav-open .main-nav { display: flex; }
  .main-nav a { padding: 16px 0; }
  .header-cta-group { display: none; }
  .city-grid, .hub-note, .city-content, .related-grid { grid-template-columns: 1fr; }
  .city-sidebar { position: static; }
  /* On This Page TOC is useless when sidebar collapses below main content. */
  .city-toc { display: none; }
}
@media (max-width: 680px) {
  .brand { font-size: 23px; }
  .brand-mark { width: 32px; height: 32px; }
  /* Hero used to be 620px tall on mobile, eating most of the fold.
     Cut to ~440px so Quick Answer peeks into the first viewport. */
  .hub-hero, .city-hero {
    min-height: 440px;
    padding-top: 96px;
    padding-bottom: 36px;
  }
  .city-hero h1 { font-size: clamp(40px, 9vw, 56px); }
  .city-hero p { font-size: 16px; margin-top: 14px; }
  .city-list, .key-facts { grid-template-columns: 1fr; }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .section-pad { padding: clamp(48px, 8vw, 80px) clamp(16px, 5vw, 28px); }
  .city-section { padding: 22px 18px; }
  /* Hide Published date on mobile; Updated date is the one AI/SEO weights more. */
  .byline-published { display: none; }
  /* Quote block: tighter padding so 320-360px screens keep readable line length. */
  .city-quote { padding: 14px 16px; }
  .city-quote blockquote { font-size: 14px; }
  /* References list: more breathing room per item since each link wraps to multi-line. */
  .source-list { gap: 14px; padding-left: 16px; font-size: 13px; }
  /* Tap-friendly: ensure inline links inside long lists are easy to hit. */
  .source-list a { display: inline-block; padding: 2px 0; }
  /* Lead answer: slightly larger gap above body paragraph on mobile. */
  .lead-answer { margin-bottom: 16px !important; }
  /* Related cards: stack to 1 col already via .related-grid rule above. */
}

/* ============================================================
   Support page — /support.html
   122 scenarios × 15 categories × 5 dimensions.
   ============================================================ */

.support-page .hub-hero {
  min-height: 520px;
  background:
    linear-gradient(120deg, rgba(16,35,74,.92) 0%, rgba(16,35,74,.66) 44%, rgba(16,35,74,.32) 78%, rgba(16,35,74,.16) 100%),
    radial-gradient(circle at 84% 14%, rgba(53,167,255,.55), transparent 58%),
    radial-gradient(circle at 16% 92%, rgba(255,96,66,.35), transparent 62%),
    linear-gradient(135deg, #10234a 0%, #1c3a6f 100%);
}
.support-hero .hub-copy { max-width: 880px; }
.support-hero h1 { font-size: clamp(48px, 7vw, 96px); }

.dimensions-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}
.dim-card {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 16px 40px rgba(15,49,98,.06);
}
.dim-card h3 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 24px;
  line-height: 1.1;
  color: var(--ink);
}
.dim-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.dim-card-badge {
  align-self: start;
  width: 36px;
  height: 36px;
  font-size: 16px;
}

/* Dimension chips — used inline next to scenarios and on dim cards */
.dim {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  font-family: Inter, system-ui, sans-serif;
  cursor: help;
}
.dim-i { background: linear-gradient(135deg, #2563eb, #1e40af); }
.dim-l { background: linear-gradient(135deg, #16a34a, #15803d); }
.dim-k { background: linear-gradient(135deg, #f59e0b, #d97706); }
.dim-n { background: linear-gradient(135deg, #a855f7, #7e22ce); }
.dim-p { background: linear-gradient(135deg, #14b8a6, #0d9488); }

/* Category sticky nav above the scenarios list */
.scenarios-section { padding-top: 0; }
.category-nav {
  position: sticky;
  top: 74px;
  z-index: 15;
  max-width: 1240px;
  margin: 0 auto 26px;
  padding: 12px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(14px);
  box-shadow: 0 16px 40px rgba(15,49,98,.08);
}
.category-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--ink-soft);
  background: #f4f8fd;
  font-size: 13px;
  font-weight: 700;
  transition: background 140ms ease, color 140ms ease;
}
.category-nav a:hover { background: var(--ink); color: #fff; }
.cat-count {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 18px;
  padding: 0 6px;
  border-radius: 999px;
  background: rgba(16,35,74,.12);
  color: var(--ink);
  font-size: 11px;
  font-weight: 800;
}
.category-nav a:hover .cat-count { background: rgba(255,255,255,.2); color: #fff; }

.scenario-categories { max-width: 1240px; margin: 0 auto; display: grid; gap: 40px; }
.scenario-category { scroll-margin-top: 160px; }
.scenario-category-head {
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.scenario-category-head h3 {
  margin: 0;
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.1;
  color: var(--ink);
}
.scenario-category-head p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}
.cat-count-inline {
  display: inline-block;
  margin-left: 4px;
  padding: 2px 10px;
  border-radius: 999px;
  background: #f4f8fd;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
}

.scenario-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: scen;
}
.scenario {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: start;
  padding: 18px 20px 18px 56px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 6px 18px rgba(15,49,98,.04);
  transition: transform 140ms ease, box-shadow 140ms ease;
}
.scenario:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(15,49,98,.12);
}
.scenario::before {
  counter-increment: scen;
  content: counter(scen);
  position: absolute;
  top: 18px;
  left: 18px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), var(--teal));
  color: #fff;
  font-size: 12px;
  font-weight: 800;
}
.scenario-text h4 {
  margin: 0;
  color: var(--ink);
  font-family: Inter, system-ui, sans-serif;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
}
.scenario-text p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}
.scenario-dims {
  display: inline-flex;
  gap: 4px;
  flex-shrink: 0;
}

@media (max-width: 980px) {
  .dimensions-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-list { grid-template-columns: 1fr; }
  .category-nav { top: 64px; }
}
@media (max-width: 680px) {
  .dimensions-grid { grid-template-columns: 1fr; gap: 10px; }
  .dim-card { padding: 18px 18px 20px; }
  .support-hero h1 { font-size: clamp(38px, 9vw, 54px); }
  .scenario { padding: 16px 16px 16px 50px; }
  .scenario::before { width: 22px; height: 22px; font-size: 11px; top: 16px; left: 16px; }
  .scenario-text h4 { font-size: 14px; }
  .scenario-text p { font-size: 13px; }
  .category-nav { padding: 10px; gap: 6px; }
  .category-nav a { padding: 6px 10px; font-size: 12px; }
}