:root {
  --ink: #20241f;
  --muted: #626a61;
  --paper: #fbfaf6;
  --white: #ffffff;
  --sage: #77866f;
  --sage-dark: #4e5f48;
  --sage-pale: #edf0e9;
  --blush: #dba99a;
  --blush-pale: #f6e8e2;
  --line: rgba(32, 36, 31, 0.13);
  --shadow: 0 24px 70px rgba(38, 44, 34, 0.1);
  --radius: 24px;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

body.menu-open { overflow: hidden; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 100;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
}

.skip-link:focus { top: 16px; }

.container {
  width: min(calc(100% - 40px), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 250, 246, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  color: var(--white);
  background: var(--sage-dark);
  border-radius: 50% 50% 46% 54% / 56% 45% 55% 44%;
  font-family: Georgia, serif;
  font-size: 15px;
  letter-spacing: 0.08em;
}

.brand-name {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

html[lang="en"] .brand-name {
  max-width: 390px;
  font-size: 15px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
}

.nav-links a {
  position: relative;
  font-size: 14px;
  font-weight: 650;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 2px;
  background: var(--blush);
  transform: scaleX(0);
  transition: transform 180ms ease;
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}

.lang-switch strong { color: var(--ink); }

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  align-items: center;
  overflow: hidden;
  background: #eee9df;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(251,250,246,.98) 0%, rgba(251,250,246,.93) 34%, rgba(251,250,246,.34) 60%, rgba(251,250,246,.04) 100%);
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding-block: 110px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  color: var(--sage-dark);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, .display {
  font-family: Georgia, "Noto Serif SC", "Songti SC", serif;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

h1 {
  max-width: 650px;
  margin-bottom: 24px;
  font-size: clamp(48px, 6.2vw, 82px);
  overflow-wrap: anywhere;
}

html[lang="en"] .hero h1 { font-size: clamp(44px, 5.7vw, 78px); }

.hero-lead {
  max-width: 640px;
  margin-bottom: 34px;
  color: #4c544c;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(32,36,31,.12); }
.button-primary { color: var(--white); background: var(--ink); }
.button-secondary { background: rgba(255,255,255,.65); }

.fact-bar {
  position: relative;
  z-index: 2;
  margin-top: -42px;
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.fact {
  min-height: 132px;
  padding: 27px 30px;
  border-right: 1px solid var(--line);
}

.fact:last-child { border-right: 0; }
.fact strong { display: block; margin-bottom: 6px; font-family: Georgia, serif; font-size: 27px; font-weight: 500; }
.fact span { color: var(--muted); font-size: 13px; }

.section { padding: 110px 0; }
.section-compact { padding: 80px 0; }
.section-tint { background: var(--sage-pale); }
.section-blush { background: var(--blush-pale); }
.section-dark { color: var(--white); background: #283028; }

.section-heading {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 70px;
  align-items: end;
  margin-bottom: 56px;
}

.section-heading h2 {
  max-width: 560px;
  margin-bottom: 0;
  font-size: clamp(36px, 5vw, 58px);
}

.section-heading p { max-width: 650px; margin-bottom: 0; color: var(--muted); }
.section-dark .section-heading p { color: rgba(255,255,255,.72); }

.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.card {
  min-height: 290px;
  padding: 30px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.card-number {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  margin-bottom: 46px;
  color: var(--sage-dark);
  background: var(--sage-pale);
  border-radius: 50%;
  font-family: Georgia, serif;
}

.card h3 { margin-bottom: 12px; font-size: 19px; }
.card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.category-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }

.category-card {
  position: relative;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 26px;
  border-radius: 20px;
  background: linear-gradient(155deg, #f7eee8, #ddd9cb);
  isolation: isolate;
}

.category-card:nth-child(2) { background: linear-gradient(155deg, #e8ece2, #cbd4c5); }
.category-card:nth-child(3) { background: linear-gradient(155deg, #f3e4de, #e2c8bd); }
.category-card:nth-child(4) { background: linear-gradient(155deg, #e8e4dc, #d3ccbf); }
.category-card:nth-child(5) { background: linear-gradient(155deg, #efe6ea, #d8c3cd); }

.category-card::before,
.category-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: 999px;
  background: rgba(255,255,255,.52);
  box-shadow: inset -10px -12px 30px rgba(70,70,65,.08), 0 24px 35px rgba(70,70,65,.08);
}

.category-card::before { width: 112px; height: 164px; top: 45px; left: 50%; transform: translateX(-50%); }
.category-card::after { width: 76px; height: 30px; top: 31px; left: 50%; transform: translateX(-50%); }
.category-card:nth-child(2)::before { width: 82px; height: 145px; border-radius: 18px 18px 25px 25px; }
.category-card:nth-child(3)::before { width: 124px; height: 78px; top: 112px; }
.category-card:nth-child(3)::after { width: 110px; height: 25px; top: 98px; }
.category-card:nth-child(4)::before { width: 92px; height: 160px; transform: translateX(-50%) rotate(-8deg); }
.category-card:nth-child(5)::before { width: 132px; height: 45px; top: 124px; }
.category-card:nth-child(5)::after { width: 116px; height: 38px; top: 92px; }

.category-card small { font-size: 11px; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.category-card h3 { margin: 5px 0 0; font-family: Georgia, serif; font-size: 28px; font-weight: 500; }

.tech-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; align-items: start; }
.tech-copy { position: sticky; top: 120px; }
.tech-copy h2 { margin-bottom: 22px; font-size: clamp(38px, 5vw, 60px); }
.tech-copy p { color: rgba(255,255,255,.74); }

.tech-list { display: grid; gap: 12px; }
.tech-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 20px;
  align-items: start;
  padding: 24px 0;
  border-top: 1px solid rgba(255,255,255,.16);
}
.tech-item:last-child { border-bottom: 1px solid rgba(255,255,255,.16); }
.tech-icon { color: #d9c3b8; font-family: Georgia, serif; font-size: 30px; line-height: 1; }
.tech-item h3 { margin-bottom: 6px; font-size: 18px; }
.tech-item p { margin-bottom: 0; color: rgba(255,255,255,.66); font-size: 14px; }

.process { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; counter-reset: flow; }
.process-step { position: relative; min-height: 170px; padding: 24px 20px; border-top: 1px solid var(--line); }
.process-step::before { counter-increment: flow; content: "0" counter(flow); display: block; margin-bottom: 38px; color: var(--sage); font-family: Georgia, serif; }
.process-step::after { content: ""; position: absolute; top: -4px; left: 0; width: 7px; height: 7px; border-radius: 50%; background: var(--sage-dark); }
.process-step strong { display: block; font-size: 14px; }
.process-step span { color: var(--muted); font-size: 12px; }

.cta-panel {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 50px;
  align-items: center;
  padding: 56px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.cta-panel h2 { margin-bottom: 14px; font-size: clamp(34px, 4vw, 50px); }
.cta-panel p { margin-bottom: 0; color: var(--muted); }
.cta-panel .actions { justify-content: flex-end; }

.page-hero { padding: 105px 0 78px; background: linear-gradient(135deg, var(--blush-pale), var(--sage-pale)); }
.page-hero h1 { margin-bottom: 20px; font-size: clamp(48px, 7vw, 82px); }
.page-hero p { max-width: 780px; margin-bottom: 0; color: var(--muted); font-size: 20px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 75px; align-items: start; }
.split h2 { font-size: clamp(36px, 4vw, 54px); }
.prose p { color: var(--muted); }

.detail-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.detail-list li { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.detail-list strong { font-size: 13px; }
.detail-list span { color: var(--muted); }

.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.problem { padding: 27px; background: rgba(255,255,255,.68); border: 1px solid var(--line); border-radius: 16px; }
.problem h3 { font-size: 17px; }
.problem p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.scope-note { padding: 22px 26px; border-left: 3px solid var(--blush); background: var(--white); color: var(--muted); }

.team-section { background: linear-gradient(145deg, #f7eee9, #edf0e9); }
.team-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 24px; }
.founder-card, .project-card { border-radius: var(--radius); box-shadow: var(--shadow); }
.founder-card { display: grid; grid-template-columns: 130px 1fr; gap: 34px; padding: 44px; background: var(--white); border: 1px solid var(--line); }
.founder-mark { display: grid; place-items: center; width: 130px; height: 130px; color: var(--white); background: linear-gradient(145deg, var(--sage-dark), #76856e); border-radius: 46% 54% 48% 52% / 53% 44% 56% 47%; font-family: Georgia, serif; font-size: 44px; }
.team-kicker { margin-bottom: 9px; color: var(--sage-dark); font-size: 11px; font-weight: 780; letter-spacing: .15em; text-transform: uppercase; }
.founder-card h3 { margin-bottom: 3px; font-family: Georgia, "Noto Serif SC", serif; font-size: 36px; font-weight: 500; }
.founder-role { margin-bottom: 18px; color: var(--sage-dark); font-weight: 700; }
.founder-card > div:last-child > p:not(.team-kicker):not(.founder-role), .project-card p { color: var(--muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 0; padding: 0; list-style: none; }
.tag-list li, .proof-badges span { padding: 6px 11px; background: var(--sage-pale); border: 1px solid var(--line); border-radius: 999px; font-size: 12px; }
.project-card { padding: 38px; color: var(--white); background: #283028; }
.project-card > strong { display: block; margin: 8px 0 4px; color: #dfc1b5; font-family: Georgia, serif; font-size: 66px; font-weight: 500; line-height: 1; }
.project-card h3 { margin: 16px 0 12px; font-size: 21px; }
.project-card p { color: rgba(255,255,255,.68); }
.text-link { display: inline-block; margin-top: 14px; color: inherit; font-size: 13px; font-weight: 750; }
.text-link:hover { text-decoration: underline; }

.technology-hero { background: linear-gradient(135deg, #f5e5df 0%, #eef1e9 58%, #e5ebdf 100%); }
.technology-hero h1 { max-width: 940px; }
.proof-badges { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 28px; }
.proof-badges span { background: rgba(255,255,255,.72); }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.evidence-grid article { min-height: 260px; padding: 30px; background: var(--white); border: 1px solid var(--line); border-radius: 18px; }
.evidence-grid article > span { display: block; margin-bottom: 42px; color: var(--sage); font-family: Georgia, serif; font-size: 28px; }
.evidence-grid h3 { margin-bottom: 12px; font-size: 20px; }
.evidence-grid p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.demo-section { background: #e9ede6; }
.demo-topbar { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 24px; }
.demo-topbar h2 { margin-bottom: 6px; font-size: clamp(38px, 5vw, 58px); }
.demo-topbar p:last-child { margin-bottom: 0; color: var(--muted); }
.demo-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.demo-notice { padding: 17px 20px; background: #fff7e9; border: 1px solid #e6cfaa; border-radius: 13px; color: #6b5736; font-size: 13px; }
.demo-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin: 16px 0; padding: 15px 18px; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 14px; }
.demo-controls label { font-size: 13px; font-weight: 750; }
.demo-controls select { min-height: 42px; padding: 0 38px 0 13px; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: 9px; }
.demo-run, .demo-mini-button { color: var(--white); background: var(--sage-dark); border: 0; border-radius: 9px; cursor: pointer; font-weight: 750; }
.demo-run { min-height: 42px; padding: 0 16px; }
.demo-mini-button { padding: 7px 10px; font-size: 12px; white-space: nowrap; }
.demo-run:hover, .demo-mini-button:hover { background: #34402f; }
#demo-status { margin-left: auto; color: var(--sage-dark); font-size: 12px; font-weight: 700; }
.demo-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.demo-metrics article { padding: 22px; background: #202720; border-radius: 15px; color: var(--white); }
.demo-metrics span, .demo-metrics small { display: block; color: rgba(255,255,255,.58); font-size: 12px; }
.demo-metrics strong { display: block; margin: 5px 0 2px; font-family: Georgia, serif; font-size: 34px; font-weight: 500; }
.demo-panel { margin-top: 16px; overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: 17px; box-shadow: 0 18px 45px rgba(38,44,34,.06); }
.demo-panel-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; padding: 25px 27px; border-bottom: 1px solid var(--line); }
.demo-panel-heading h3 { margin-bottom: 0; font-size: 23px; }
.demo-panel-heading > p { margin-bottom: 0; color: var(--muted); font-size: 12px; }
.demo-table-wrap { overflow-x: auto; }
.demo-table { width: 100%; min-width: 860px; border-collapse: collapse; font-size: 13px; }
.demo-table th { padding: 13px 17px; color: var(--muted); background: #f7f8f5; text-align: left; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.demo-table td { padding: 16px 17px; border-top: 1px solid var(--line); vertical-align: middle; }
.demo-table td strong, .demo-table td small { display: block; }
.demo-table td small { color: var(--muted); }
.demo-table tr.is-handled { opacity: .55; }
.demo-status, .demo-priority { display: inline-flex; padding: 4px 8px; border-radius: 999px; font-size: 11px; font-weight: 760; white-space: nowrap; }
.status-urgent, .priority-high { color: #8b2e27; background: #fde2df; }
.status-replenish, .priority-medium { color: #775415; background: #fff0c8; }
.status-watch, .priority-low { color: #3f5b77; background: #e3edf7; }
.status-healthy { color: #31583b; background: #dfefdf; }

.architecture-flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 12px; align-items: center; }
.architecture-flow article { min-height: 190px; padding: 24px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 16px; }
.architecture-flow article > span { display: block; margin-bottom: 34px; color: #dfc1b5; font-family: Georgia, serif; font-size: 24px; }
.architecture-flow strong { display: block; margin-bottom: 8px; }
.architecture-flow p { margin-bottom: 0; color: rgba(255,255,255,.62); font-size: 12px; }
.architecture-flow i { color: rgba(255,255,255,.45); font-style: normal; }

.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.contact-card { padding: 38px; border: 1px solid var(--line); border-radius: 20px; background: var(--white); }
.contact-card h2 { margin-bottom: 28px; font-size: 34px; }
.contact-row { padding: 18px 0; border-top: 1px solid var(--line); }
.contact-row span { display: block; color: var(--muted); font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.contact-row a, .contact-row strong { display: inline-block; margin-top: 4px; font-size: 18px; word-break: break-word; }
.contact-row a:hover { color: var(--sage-dark); text-decoration: underline; }

.site-footer { padding: 70px 0 30px; color: rgba(255,255,255,.78); background: #1d221d; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(2, .8fr); gap: 60px; padding-bottom: 55px; }
.footer-brand { color: var(--white); font-family: Georgia, serif; font-size: 25px; }
.footer-intro { max-width: 540px; color: rgba(255,255,255,.6); }
.footer-heading { margin-bottom: 14px; color: var(--white); font-size: 13px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.footer-links { margin: 0; padding: 0; list-style: none; }
.footer-links li { margin: 7px 0; }
.footer-links a:hover { color: var(--white); text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.48); font-size: 12px; }

@media (max-width: 980px) {
  .nav-links { gap: 18px; }
  .brand-name { display: none; }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(2) { border-right: 0; }
  .fact:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .tech-layout { grid-template-columns: 1fr; gap: 45px; }
  .tech-copy { position: static; }
  .process { grid-template-columns: repeat(3, 1fr); }
  .team-grid { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .evidence-grid article { min-height: auto; }
  .evidence-grid article > span { margin-bottom: 24px; }
  .architecture-flow { grid-template-columns: 1fr 1fr; }
  .architecture-flow i { display: none; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .nav-shell { min-height: 66px; }
  .menu-button { display: block; margin-left: auto; }
  .menu-button[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-button[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-links {
    position: fixed;
    top: 66px;
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 24px 20px;
    background: var(--paper);
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--line); }
  .nav-links a { display: block; padding: 17px 4px; font-size: 17px; }
  .nav-links a::after { display: none; }
  .lang-switch { margin-left: 4px; }
  .hero { min-height: 720px; align-items: end; }
  .hero::after { background: linear-gradient(180deg, rgba(251,250,246,.08) 0%, rgba(251,250,246,.22) 30%, rgba(251,250,246,.96) 62%, rgba(251,250,246,1) 100%); }
  .hero-media { height: 58%; object-position: 64% center; }
  .hero-content { padding: 310px 0 70px; }
  h1 { font-size: clamp(43px, 13vw, 62px); }
  html[lang="en"] .hero h1 { font-size: clamp(36px, 10vw, 48px); letter-spacing: -0.05em; }
  .hero-lead { font-size: 16px; line-height: 1.7; }
  .fact-bar { margin-top: 0; padding-top: 18px; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .fact { min-height: 116px; padding: 21px 18px; }
  .fact strong { font-size: 21px; }
  .section, .section-compact { padding: 76px 0; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; margin-bottom: 36px; }
  .card-grid, .problem-grid, .split, .contact-layout { grid-template-columns: 1fr; }
  .card { min-height: auto; }
  .card-number { margin-bottom: 28px; }
  .category-grid { grid-template-columns: 1fr 1fr; }
  .category-card { min-height: 270px; }
  .process { grid-template-columns: 1fr 1fr; }
  .cta-panel { grid-template-columns: 1fr; padding: 35px 25px; }
  .cta-panel .actions { justify-content: flex-start; }
  .page-hero { padding: 75px 0 58px; }
  .page-hero p { font-size: 17px; }
  .detail-list li { grid-template-columns: 115px 1fr; }
  .founder-card { grid-template-columns: 1fr; padding: 30px; }
  .founder-mark { width: 96px; height: 96px; font-size: 34px; }
  .project-card { padding: 30px; }
  .demo-topbar, .demo-panel-heading { align-items: flex-start; flex-direction: column; }
  .demo-actions { justify-content: flex-start; }
  .demo-metrics { grid-template-columns: 1fr 1fr; }
  .architecture-flow { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 430px) {
  .lang-switch { font-size: 12px; }
  .category-grid { grid-template-columns: 1fr; }
  .category-card { min-height: 245px; }
  .process { grid-template-columns: 1fr; }
  .actions .button { width: 100%; }
  .demo-actions { width: 100%; }
  .demo-actions .button { width: 100%; }
  .demo-controls { align-items: stretch; flex-direction: column; }
  .demo-controls select, .demo-run { width: 100%; }
  #demo-status { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}