:root {
  --ink: #171612;
  --ink-soft: #26241f;
  --ivory: #f2ede2;
  --paper: #faf7f0;
  --vermilion: #ce3f25;
  --vermilion-dark: #a92d1b;
  --line: rgba(23, 22, 18, 0.16);
  --muted: #676159;
  --radius: 26px;
  --shell: min(1180px, calc(100vw - 48px));
  --shadow: 0 24px 70px rgba(42, 33, 23, 0.09);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 12% 4%, rgba(206, 63, 37, 0.07), transparent 23rem),
    var(--ivory);
  color: var(--ink);
  font-family: "Avenir Next", "Futura", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open { overflow: hidden; }

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

.shell { width: var(--shell); margin-inline: auto; }
.section { padding-block: 112px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}
.skip-link:focus { transform: translateY(0); }

:focus-visible { outline: 3px solid var(--vermilion); outline-offset: 4px; }
.cooperate-inner :focus-visible { outline-color: #fff7ef; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(242, 237, 226, 0.84);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, background-color 180ms ease;
}
.site-header.is-scrolled { border-color: var(--line); background: rgba(242, 237, 226, 0.95); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 760; letter-spacing: 0.04em; }
.brand-mark { position: relative; display: grid; place-items: center; width: 32px; height: 32px; transform: rotate(45deg); }
.brand-mark::before, .brand-mark::after, .brand-mark i {
  content: "";
  position: absolute;
  border: 1.5px solid var(--ink);
  width: 20px;
  height: 20px;
}
.brand-mark::after { width: 10px; height: 10px; border-color: var(--vermilion); background: var(--vermilion); }
.brand-mark i { width: 28px; height: 28px; opacity: 0.36; }
.brand-mark i + i { display: none; }
.brand-name { white-space: nowrap; }

.site-nav { display: flex; align-items: center; gap: 34px; font-size: 14px; font-weight: 620; }
.site-nav > a:not(.nav-cta) { position: relative; padding-block: 10px; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 5px; height: 1px; background: var(--vermilion); transition: right 180ms ease; }
.site-nav > a:hover::after { right: 0; }
.nav-cta { display: inline-flex; align-items: center; gap: 18px; border: 1px solid var(--ink); border-radius: 999px; padding: 9px 14px 9px 18px; transition: background-color 180ms ease, color 180ms ease; }
.nav-cta:hover { background: var(--ink); color: var(--paper); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; }
.menu-toggle > span:not(.sr-only) { display: block; width: 18px; height: 1px; margin: 5px auto; background: currentColor; transition: transform 180ms ease; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(310px, 0.95fr);
  grid-template-rows: minmax(490px, auto) 196px;
  gap: 16px;
  padding-top: 20px;
}
.card { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(250, 247, 240, 0.72); }
.card-dark { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.card-accent { background: var(--vermilion); color: #fff7ef; border-color: var(--vermilion); }
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(38px, 6vw, 74px); }
.hero-copy::after { content: ""; position: absolute; width: 360px; height: 360px; top: -230px; right: -140px; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; box-shadow: 0 0 0 42px rgba(255,255,255,.025), 0 0 0 84px rgba(255,255,255,.02); }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 42px; color: rgba(250, 247, 240, 0.68); font-size: 13px; letter-spacing: 0.12em; }
.eyebrow span { width: 7px; height: 7px; border-radius: 50%; background: var(--vermilion); box-shadow: 0 0 0 5px rgba(206, 63, 37, 0.18); }
.hero h1 { max-width: 690px; margin: 0; font-size: clamp(52px, 6.2vw, 91px); line-height: 0.99; letter-spacing: -0.065em; font-weight: 760; }
.hero h1 em { color: #f26c4f; font-style: normal; }
.hero-copy > p { max-width: 610px; margin: 30px 0 0; color: rgba(250, 247, 240, 0.66); font-size: 17px; }
.hero-actions { display: flex; align-items: center; gap: 28px; margin-top: 38px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 30px; padding: 11px 20px; border: 0; border-radius: 999px; cursor: pointer; font-weight: 700; transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease; }
.button:hover { transform: translateY(-2px); }
.button-light { background: var(--paper); color: var(--ink); }
.button-dark { background: var(--ink); color: var(--paper); }
.text-button { padding: 8px 0; border: 0; border-bottom: 1px solid rgba(250,247,240,.34); background: transparent; color: var(--paper); cursor: pointer; }
.text-button:hover { border-color: var(--paper); }
.hero-meta { display: flex; align-items: center; gap: 13px; margin-top: 46px; color: rgba(250, 247, 240, 0.48); font-size: 12px; letter-spacing: .12em; }
.hero-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--vermilion); }

.hero-visual { display: flex; flex-direction: column; min-height: 490px; padding: 20px; background: #d8c6a7; }
.visual-topline { display: flex; justify-content: space-between; padding: 1px 3px 14px; font-size: 11px; letter-spacing: 0.1em; }
.photo-frame { position: relative; flex: 1; min-height: 320px; overflow: hidden; border-radius: 18px; background: linear-gradient(145deg, #f6c2a1 0%, #d94d30 33%, #78271f 64%, #161512 100%); isolation: isolate; }
.photo-frame::before { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, transparent 49.7%, rgba(250,247,240,.32) 50%, transparent 50.3%), linear-gradient(15deg, rgba(250,247,240,.05), transparent 50%); }
.photo-frame::after { content: ""; position: absolute; inset: 12px; border: 1px solid rgba(255,255,255,.42); border-radius: 12px; }
.orb { position: absolute; display: block; border-radius: 50%; }
.orb-a { width: 64%; aspect-ratio: 1; left: -15%; top: 18%; background: radial-gradient(circle at 65% 28%, #ffd9b7, #d84b31 44%, #581b17 76%); box-shadow: 30px 35px 65px rgba(48, 11, 7, .4); }
.orb-b { width: 34%; aspect-ratio: 1; right: 4%; top: 8%; border: 1px solid rgba(255,255,255,.48); box-shadow: inset 20px -24px 45px rgba(23,22,18,.45); }
.plane { position: absolute; width: 85%; height: 38%; right: -17%; bottom: -2%; background: linear-gradient(160deg, rgba(244,221,185,.95), #9e5a46 74%); transform: skewY(-12deg); box-shadow: -20px -20px 45px rgba(40,17,11,.23); }
.frame-line { position: absolute; left: 12%; top: 10%; width: 1px; height: 80%; background: rgba(255,255,255,.43); transform: rotate(24deg); transform-origin: top; }
.visual-caption { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 18px 3px 1px; }
.visual-caption small { display: block; margin-bottom: 2px; color: rgba(23,22,18,.62); }
.visual-caption strong { font-size: 15px; }
.round-arrow { display: grid; place-items: center; flex: 0 0 38px; width: 38px; height: 38px; border: 1px solid rgba(23,22,18,.35); border-radius: 50%; }

.hero-note { display: grid; grid-template-columns: auto 1fr auto; align-items: end; gap: 26px; padding: 28px 32px; }
.note-index { align-self: start; font-size: 12px; opacity: .9; }
.hero-note p { max-width: 420px; margin: 0; font-size: clamp(21px, 2.5vw, 31px); font-weight: 680; line-height: 1.25; letter-spacing: -0.035em; }
.spark { font-size: 32px; opacity: .82; }
.hero-principle { display: flex; flex-direction: column; justify-content: space-between; padding: 28px 30px; background: var(--paper); }
.principle-label { color: var(--muted); font-size: 12px; letter-spacing: .1em; }
.hero-principle strong { max-width: 260px; font-size: 24px; letter-spacing: -.03em; }
.principle-bars { display: flex; align-items: end; gap: 7px; height: 42px; }
.principle-bars i { flex: 1; height: 15%; background: var(--ink); opacity: .16; }
.principle-bars i:nth-child(2) { height: 32%; }
.principle-bars i:nth-child(3) { height: 48%; }
.principle-bars i:nth-child(4) { height: 70%; }
.principle-bars i:nth-child(5) { height: 100%; background: var(--vermilion); opacity: 1; }

.section-kicker { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.section-kicker b { color: var(--ink); font-weight: 600; }
.intro-grid { display: grid; grid-template-columns: 1.4fr .6fr; gap: 8vw; align-items: end; padding-top: 58px; }
.display-title { margin: 0; font-size: clamp(46px, 6vw, 82px); line-height: 1.05; letter-spacing: -.055em; }
.intro-copy { padding-bottom: 8px; }
.intro-copy p { margin: 0 0 28px; color: var(--muted); font-size: 17px; }
.inline-link { display: inline-flex; align-items: center; gap: 28px; padding-bottom: 5px; border-bottom: 1px solid var(--ink); font-weight: 700; }

.services { padding-top: 40px; }
.section-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; margin-bottom: 42px; }
.section-heading h2 { margin: 15px 0 0; font-size: clamp(38px, 4.3vw, 60px); line-height: 1.07; letter-spacing: -.05em; }
.section-heading > p { max-width: 470px; justify-self: end; margin: 0 0 7px; color: var(--muted); }
.tag { display: inline-flex; align-items: center; gap: 9px; color: var(--vermilion-dark); font-size: 12px; font-weight: 720; letter-spacing: .14em; }
.tag::before { content: ""; width: 16px; height: 1px; background: currentColor; }
.tag-light { color: #f07c62; }
.cooperate .tag-light { color: #fff7ef; }

.service-grid { display: grid; grid-template-columns: 1.15fr .85fr 1fr; grid-template-rows: 330px 330px; gap: 16px; }
.service-card { display: flex; flex-direction: column; justify-content: space-between; min-width: 0; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(250,247,240,.74); overflow: hidden; transition: transform 180ms ease, box-shadow 180ms ease; }
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-head { display: flex; align-items: center; justify-content: space-between; }
.service-no { color: var(--muted); font-size: 12px; letter-spacing: .12em; }
.service-icon { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--line); border-radius: 50%; font-size: 18px; }
.service-card h3 { margin: 0 0 10px; font-size: clamp(22px, 2vw, 28px); line-height: 1.15; letter-spacing: -.03em; }
.service-card p { margin: 0; color: var(--muted); font-size: 14px; }
.service-featured { grid-row: span 2; background: #d8c6a7; }
.service-graphic { position: relative; height: 270px; margin: 18px 0 24px; overflow: hidden; border-radius: 17px; background: linear-gradient(150deg, #151411 2%, #4a1e17 46%, #e24f30 100%); }
.service-graphic::before { content: ""; position: absolute; width: 74%; aspect-ratio: 1; top: 15%; left: -13%; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; box-shadow: 0 0 0 34px rgba(255,255,255,.04), 0 0 0 68px rgba(255,255,255,.03); }
.service-graphic::after { content: ""; position: absolute; width: 40%; aspect-ratio: 1; right: 8%; top: 14%; border-radius: 3px 50% 50% 50%; background: linear-gradient(135deg, #ffd7ad, #bc3925 65%); transform: rotate(25deg); box-shadow: 22px 20px 45px rgba(0,0,0,.3); }
.service-graphic i { position: absolute; z-index: 2; width: 5px; height: 5px; border-radius: 50%; background: #fff; }
.service-graphic i:first-child { left: 16%; top: 25%; }
.service-graphic i:nth-child(2) { left: 35%; top: 65%; }
.service-graphic i:nth-child(3) { right: 12%; bottom: 12%; }
.service-list { display: flex; flex-wrap: wrap; gap: 7px; margin: 22px 0 0; padding: 0; list-style: none; }
.service-list li { padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: 11px; }
.service-ink { background: var(--ink-soft); color: var(--paper); border-color: var(--ink-soft); }
.service-ink p, .service-ink .service-no { color: rgba(250,247,240,.58); }
.service-ink .service-icon { border-color: rgba(250,247,240,.22); }
.channel-map { position: relative; display: flex; align-items: center; justify-content: space-between; width: 100%; margin-top: 24px; }
.channel-map::before { content: ""; position: absolute; left: 12px; right: 12px; height: 1px; background: rgba(250,247,240,.2); }
.channel-map span { position: relative; z-index: 1; width: 17px; height: 17px; border: 4px solid var(--ink-soft); border-radius: 50%; background: #d46952; box-shadow: 0 0 0 1px rgba(250,247,240,.4); }
.channel-map i { position: absolute; left: 48%; z-index: 2; width: 35px; height: 35px; border: 1px solid rgba(250,247,240,.5); border-radius: 50%; background: var(--ink-soft); }
.service-wide { grid-column: span 2; display: grid; grid-template-columns: 56px 1fr 1fr; gap: 18px; align-items: end; }
.service-wide .service-head { align-self: stretch; align-items: start; flex-direction: column; }
.wide-copy { align-self: end; }
.data-chart { position: relative; display: flex; align-items: end; gap: 10px; height: 150px; padding: 16px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.data-chart span { flex: 1; height: var(--h); background: var(--ink); opacity: .18; border-radius: 4px 4px 0 0; }
.data-chart span:last-of-type { background: var(--vermilion); opacity: 1; }
.data-chart i { position: absolute; left: 13px; right: 4px; bottom: 31%; height: 2px; background: var(--vermilion); transform: rotate(-9deg); transform-origin: right; }

.method { background: var(--ink); color: var(--paper); }
.method-heading > p { color: rgba(250,247,240,.58); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0; padding: 16px 0 0; list-style: none; counter-reset: steps; }
.step { display: flex; min-height: 360px; flex-direction: column; padding: 26px 26px 30px; border-left: 1px solid rgba(250,247,240,.16); }
.step:last-child { border-right: 1px solid rgba(250,247,240,.16); }
.step-no { color: rgba(250,247,240,.42); font-size: 12px; letter-spacing: .1em; }
.step-mark { display: grid; place-items: center; flex: 1; }
.step-mark i { position: relative; display: block; width: 74px; height: 74px; border: 1px solid rgba(250,247,240,.28); border-radius: 50%; transition: transform 220ms ease, border-color 220ms ease; }
.step-mark i::before, .step-mark i::after { content: ""; position: absolute; inset: 15px; border: 1px solid rgba(250,247,240,.22); transform: rotate(45deg); }
.step-mark i::after { inset: 28px; background: var(--vermilion); border-color: var(--vermilion); border-radius: 50%; }
.step:hover .step-mark i { transform: rotate(45deg); border-color: #f07c62; }
.step h3 { margin: 0 0 8px; font-size: 22px; }
.step p { margin: 0; color: rgba(250,247,240,.53); font-size: 14px; }

.about { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(50px, 9vw, 120px); align-items: center; }
.about-visual { min-height: 620px; padding: 22px; background: #d8c6a7; }
.about-frame { position: relative; height: 480px; overflow: hidden; border-radius: 18px; background: linear-gradient(145deg, #a93020 0%, #e15939 34%, #d8a16c 68%, #f2d6ad 100%); }
.about-frame::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(110deg, transparent 0 58px, rgba(255,255,255,.08) 59px 60px); }
.about-sun { position: absolute; width: 43%; aspect-ratio: 1; top: 14%; right: 13%; border-radius: 50%; background: radial-gradient(circle at 35% 28%, #fff2cf, #ef9365 55%, #b43925 100%); box-shadow: 0 30px 80px rgba(80,20,10,.38); }
.about-shadow { position: absolute; width: 82%; height: 52%; left: -11%; bottom: -13%; background: #191713; border-radius: 50%; transform: rotate(17deg); box-shadow: 40px -34px 90px rgba(55,24,11,.32); }
.about-frame i { position: absolute; inset: 18px; border: 1px solid rgba(255,255,255,.4); border-radius: 10px; }
.about-stamp { display: flex; justify-content: space-between; align-items: end; padding: 22px 4px 0; }
.about-stamp b { font-size: 34px; line-height: 1; letter-spacing: -.08em; }
.about-stamp span { color: rgba(23,22,18,.64); font-size: 12px; line-height: 1.5; text-align: right; }
.about-copy h2 { margin: 22px 0 30px; font-size: clamp(42px, 5.2vw, 72px); line-height: 1.05; letter-spacing: -.055em; }
.about-copy > p { max-width: 580px; margin: 0; color: var(--muted); font-size: 17px; }
.beliefs { margin-top: 42px; border-top: 1px solid var(--line); }
.beliefs > div { display: grid; grid-template-columns: 48px 1fr; padding: 15px 0; border-bottom: 1px solid var(--line); }
.beliefs span { color: var(--vermilion); font-size: 11px; }
.beliefs strong { font-size: 14px; }

.cooperate { padding-top: 24px; padding-bottom: 32px; }
.cooperate-inner { position: relative; display: grid; grid-template-columns: 1fr auto; align-items: center; min-height: 460px; padding: clamp(42px, 7vw, 84px); overflow: hidden; border-radius: var(--radius); background: var(--vermilion); color: #fff8f1; }
.cooperate-copy { position: relative; z-index: 2; }
.cooperate-copy h2 { margin: 20px 0 24px; font-size: clamp(48px, 6vw, 80px); line-height: 1.02; letter-spacing: -.055em; }
.cooperate-copy p { max-width: 510px; margin: 0; color: rgba(255,248,241,.7); }
.cooperate-button { position: relative; z-index: 2; display: flex; width: 176px; height: 176px; align-items: center; justify-content: center; gap: 14px; border: 0; border-radius: 50%; background: var(--paper); color: var(--ink); cursor: pointer; text-align: left; font-weight: 750; line-height: 1.4; box-shadow: 0 20px 55px rgba(77,12,5,.22); transition: transform 180ms ease; }
.cooperate-button:hover { transform: rotate(-5deg) scale(1.03); }
.cooperate-button i { font-style: normal; font-size: 24px; }
.cooperate-orbit { position: absolute; width: 580px; aspect-ratio: 1; top: -280px; right: -100px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; box-shadow: 0 0 0 70px rgba(255,255,255,.035), 0 0 0 140px rgba(255,255,255,.025); }
.cooperate-orbit span { position: absolute; width: 15px; height: 15px; left: 18%; bottom: 14%; border-radius: 50%; background: #fff; }
.cooperate-orbit i { position: absolute; width: 160px; height: 1px; left: -5%; bottom: 30%; background: rgba(255,255,255,.35); transform: rotate(-30deg); }

.dialog { width: min(620px, calc(100vw - 32px)); max-height: calc(100vh - 32px); padding: 34px; border: 0; border-radius: 24px; background: var(--paper); color: var(--ink); box-shadow: 0 30px 110px rgba(0,0,0,.35); }
.dialog::backdrop { background: rgba(23,22,18,.7); backdrop-filter: blur(7px); }
.dialog-top { display: flex; align-items: center; justify-content: space-between; }
.dialog-close { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; font-size: 24px; line-height: 1; }
.dialog h2 { margin: 20px 0 10px; font-size: clamp(34px, 5vw, 48px); line-height: 1.05; letter-spacing: -.045em; }
.dialog > p { margin: 0; color: var(--muted); }
.dialog ol { margin: 28px 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.dialog li { display: grid; grid-template-columns: 42px 1fr; gap: 8px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.dialog li > span { color: var(--vermilion); font-size: 11px; }
.dialog li strong { font-size: 14px; }
.dialog li p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }
.dialog-done { width: 100%; }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 520ms ease, transform 520ms ease; }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  :root { --shell: min(100% - 32px, 760px); }
  .section { padding-block: 84px; }
  .menu-toggle { display: block; position: relative; z-index: 2; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(3px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-3px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; display: flex; flex-direction: column; align-items: stretch; justify-content: center; gap: 12px; padding: 96px 28px 40px; background: var(--ivory); opacity: 0; visibility: hidden; transform: translateY(-12px); transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease; }
  .site-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
  .site-nav > a { font-size: 28px; }
  .site-nav > a:not(.nav-cta) { padding: 11px 0; border-bottom: 1px solid var(--line); }
  .nav-cta { justify-content: space-between; margin-top: 20px; border-radius: 16px; padding: 15px 18px; font-size: 18px !important; }
  .hero { grid-template-columns: 1.2fr .8fr; grid-template-rows: auto 380px 180px; }
  .hero-copy { grid-column: span 2; min-height: 520px; }
  .hero-visual { min-height: 380px; }
  .hero-note { grid-template-columns: auto 1fr; }
  .hero-note .spark { display: none; }
  .intro-grid { grid-template-columns: 1fr; gap: 34px; }
  .intro-copy { max-width: 580px; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; }
  .section-heading > p { justify-self: start; }
  .service-grid { grid-template-columns: 1fr 1fr; grid-template-rows: 410px 290px 300px; }
  .service-featured { grid-row: auto; }
  .service-graphic { height: 190px; }
  .service-wide { grid-column: span 2; }
  .steps { grid-template-columns: 1fr 1fr; }
  .step { min-height: 290px; border-bottom: 1px solid rgba(250,247,240,.16); }
  .step:nth-child(2) { border-right: 1px solid rgba(250,247,240,.16); }
  .about { grid-template-columns: 1fr; }
  .about-visual { min-height: 540px; }
  .about-frame { height: 400px; }
}

@media (max-width: 640px) {
  :root { --shell: calc(100% - 24px); --radius: 21px; }
  html { scroll-padding-top: 78px; }
  body { font-size: 15px; }
  .section { padding-block: 68px; }
  .header-inner { min-height: 68px; }
  .brand-name { font-size: 14px; }
  .hero { grid-template-columns: 1fr; grid-template-rows: auto; gap: 10px; padding-top: 10px; }
  .hero-copy { grid-column: auto; min-height: 570px; padding: 32px 24px; }
  .eyebrow { margin-bottom: 34px; font-size: 11px; }
  .hero h1 { font-size: clamp(46px, 14.5vw, 66px); }
  .hero-copy > p { font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 14px; }
  .button-light { align-self: flex-start; }
  .text-button { align-self: flex-start; }
  .hero-meta { margin-top: 34px; gap: 8px; letter-spacing: .04em; }
  .hero-visual { min-height: 420px; }
  .hero-note { min-height: 165px; padding: 24px; }
  .hero-note p { font-size: 23px; }
  .hero-principle { min-height: 175px; padding: 24px; }
  .display-title { font-size: clamp(40px, 12vw, 58px); }
  .intro-grid { padding-top: 38px; }
  .section-heading { margin-bottom: 28px; }
  .section-heading h2 { font-size: 38px; }
  .service-grid { display: flex; flex-direction: column; }
  .service-card { min-height: 310px; padding: 25px; }
  .service-featured { min-height: 560px; }
  .service-graphic { height: 270px; }
  .service-wide { display: flex; }
  .service-wide .service-head { flex-direction: row; }
  .data-chart { width: 100%; height: 120px; }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: 260px; border-right: 1px solid rgba(250,247,240,.16); }
  .about { gap: 44px; }
  .about-visual { min-height: 440px; padding: 14px; }
  .about-frame { height: 340px; }
  .about-stamp { padding-top: 16px; }
  .about-copy h2 { font-size: 44px; }
  .cooperate-inner { grid-template-columns: 1fr; gap: 46px; min-height: 620px; padding: 38px 24px; }
  .cooperate-copy h2 { font-size: 48px; }
  .cooperate-button { justify-self: end; width: 160px; height: 160px; }
  .cooperate-orbit { top: auto; right: -330px; bottom: -280px; }
  .dialog { padding: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (forced-colors: active) {
  .photo-frame, .service-graphic, .about-frame { border: 2px solid CanvasText; }
  .card, .service-card, .cooperate-inner { border: 1px solid CanvasText; }
}