@charset "UTF-8";

:root {
  --paper: #f7f2ea;
  --paper-2: #fffaf4;
  --paper-3: #ead9cd;
  --ink: #211b19;
  --muted: #6e625d;
  --gold: #b76e59;
  --gold-deep: #7f3f2e;
  --gold-soft: #d8a48f;
  --blush: #e9d3c7;
  --line: rgba(73, 45, 36, .18);
  --shadow: 0 24px 80px rgba(61, 35, 26, .12);
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, serif;
  --container: min(1280px, calc(100vw - 64px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.8; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
::selection { background: var(--gold); color: white; }
.container { width: var(--container); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.skip-link { position: fixed; z-index: 999; top: 12px; left: 12px; transform: translateY(-150%); padding: 10px 16px; background: var(--ink); color: white; border-radius: 999px; }
.skip-link:focus { transform: translateY(0); }

.scroll-progress { position: fixed; z-index: 200; inset: 0 0 auto; height: 3px; background: transparent; }
.scroll-progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--gold-deep), var(--gold-soft)); }

.site-header { position: fixed; z-index: 100; top: 18px; left: 50%; transform: translateX(-50%); width: min(1380px, calc(100vw - 36px)); display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 10px 12px 10px 18px; background: rgba(255, 250, 244, .82); border: 1px solid rgba(183, 110, 89, .16); border-radius: 999px; backdrop-filter: blur(18px); box-shadow: 0 10px 40px rgba(49, 28, 21, .08); transition: .35s ease; }
.site-header.is-scrolled { top: 8px; background: rgba(255, 250, 244, .94); box-shadow: 0 14px 44px rgba(49, 28, 21, .12); }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: max-content; }
.brand img { width: 48px; height: 54px; object-fit: contain; }
.brand-copy { display: grid; line-height: 1.2; }
.brand-copy strong { font-family: var(--serif); font-size: 19px; letter-spacing: .14em; }
.brand-copy small { margin-top: 5px; color: var(--muted); font-size: 10px; letter-spacing: .14em; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { padding: 10px 15px; border-radius: 999px; color: #4d423e; font-size: 13px; transition: .25s ease; }
.site-nav a:hover, .site-nav a:focus-visible { background: var(--blush); color: var(--ink); outline: none; }
.site-nav .nav-cta { padding-inline: 20px; background: var(--ink); color: white; }
.site-nav .nav-cta:hover, .site-nav .nav-cta:focus-visible { background: var(--gold-deep); color: white; }
.menu-toggle { display: none; width: 48px; height: 48px; border: 0; border-radius: 50%; background: var(--ink); padding: 14px; cursor: pointer; }
.menu-toggle > span:not(.sr-only) { display: block; height: 1px; margin: 5px 0; background: white; transition: .25s ease; }

.hero { position: relative; min-height: 100svh; padding: 170px 0 70px; background: radial-gradient(circle at 50% 36%, rgba(255,255,255,.98) 0, rgba(255,250,236,.87) 29%, rgba(244,226,210,.74) 58%, var(--paper) 100%); overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .4; pointer-events: none; background-image: linear-gradient(rgba(183,110,89,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(183,110,89,.06) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom, black, transparent 62%); }
.hero-orbit { position: absolute; left: 50%; border: 1px solid rgba(183,110,89,.24); border-radius: 50%; pointer-events: none; }
.orbit-one { top: 125px; width: 760px; aspect-ratio: 1; transform: translateX(-50%) rotate(-14deg); }
.orbit-two { top: 190px; width: 560px; aspect-ratio: 1; transform: translateX(-50%) rotate(18deg); border-color: rgba(183,110,89,.12); }
.hero-content { position: relative; text-align: center; }
.hero-kicker, .eyebrow { display: inline-flex; align-items: center; gap: 10px; color: var(--gold-deep); font-size: 12px; font-weight: 600; letter-spacing: .18em; }
.hero-kicker { padding: 7px 14px; background: rgba(255,255,255,.66); border: 1px solid var(--line); border-radius: 999px; }
.hero h1 { max-width: 980px; margin: 28px auto 20px; font-family: var(--serif); font-size: clamp(50px, 7.2vw, 104px); font-weight: 500; line-height: 1.08; letter-spacing: -.045em; }
.hero h1 em { color: var(--gold-deep); font-style: normal; }
.hero-subtitle { margin: 0 auto; color: var(--muted); font-size: clamp(16px, 1.5vw, 21px); letter-spacing: .09em; }
.hero-actions { display: flex; justify-content: center; gap: 12px; margin: 34px 0 50px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 52px; padding: 12px 24px; border: 1px solid transparent; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .06em; transition: transform .25s ease, box-shadow .25s ease, background .25s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(48,26,19,.14); }
.button-dark { background: var(--ink); color: white; }
.button-light { background: rgba(255,255,255,.76); border-color: var(--line); }
.hero-visual { position: relative; width: min(1040px, 92%); margin: 0 auto; overflow: hidden; border: 1px solid rgba(183,110,89,.32); border-radius: 120px 120px 28px 28px; box-shadow: var(--shadow); }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(67,37,26,.2), transparent 44%); pointer-events: none; }
.hero-visual img { width: 100%; aspect-ratio: 16/8.2; object-fit: cover; }
.hero-visual figcaption { position: absolute; z-index: 2; left: 50%; bottom: 22px; transform: translateX(-50%); display: flex; align-items: center; gap: 12px; width: max-content; max-width: calc(100% - 36px); padding: 9px 16px; color: white; background: rgba(38,27,23,.58); border: 1px solid rgba(255,255,255,.25); border-radius: 999px; backdrop-filter: blur(8px); font-size: 11px; letter-spacing: .08em; }
.hero-visual figcaption i, .closing-lines i { width: 4px; height: 4px; background: var(--gold-soft); border-radius: 50%; }

.section { position: relative; padding: 140px 0; }
.section-heading { max-width: 920px; margin-bottom: 64px; }
.section-heading.centered { margin-inline: auto; text-align: center; }
.section-heading h2, .split-heading h2, .education-intro h2, .incubation-head h2, .digital-copy h2, .faq-intro h2 { margin: 18px 0 18px; font-family: var(--serif); font-size: clamp(40px, 5.1vw, 76px); font-weight: 500; line-height: 1.17; letter-spacing: -.035em; }
.section-heading p, .lead, .education-intro p, .incubation-head p, .digital-copy > p, .faq-intro > p { color: var(--muted); font-size: 17px; }
.split-heading { display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; align-items: end; margin-bottom: 64px; }
.split-heading .lead { padding-bottom: 14px; }
.display-title { margin: 15px 0 0; font-family: var(--serif); font-size: clamp(46px, 6vw, 86px); font-weight: 500; line-height: 1.16; letter-spacing: -.05em; }
.display-title span { color: var(--gold-deep); }
.editorial-grid { display: grid; grid-template-columns: 190px 1fr; gap: 70px; }
.section-meta { padding-top: 8px; border-top: 1px solid var(--gold); }
.section-meta span { color: var(--gold); font-family: var(--serif); font-size: 64px; line-height: 1; }
.section-meta p { margin: 12px 0; color: var(--muted); font-size: 12px; letter-spacing: .16em; }
.mission { background: var(--paper-2); }
.mission-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; max-width: 930px; margin-top: 52px; padding-top: 34px; border-top: 1px solid var(--line); }
.mission-copy p { margin: 0; font-size: 18px; line-height: 2; }

.ai-shift { background: var(--ink); color: white; }
.ai-shift .eyebrow { color: var(--gold-soft); }
.ai-shift .section-heading h2 { font-family: var(--serif); font-size: clamp(36px, 4.6vw, 68px); font-weight: 400; line-height: 1.35; }
.four-up { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.feature-card { position: relative; min-height: 330px; padding: 30px; background: linear-gradient(145deg, rgba(255,255,255,.07), rgba(255,255,255,.02)); border: 1px solid rgba(255,255,255,.11); border-radius: 26px; overflow: hidden; }
.feature-card::after { content: ""; position: absolute; right: -70px; bottom: -70px; width: 170px; aspect-ratio: 1; border: 1px solid rgba(216,164,143,.22); border-radius: 50%; }
.feature-card .card-no { color: var(--gold-soft); font-family: var(--serif); font-size: 13px; }
.feature-card img { width: 56px; height: 56px; margin: 65px 0 24px; object-fit: contain; }
.feature-card h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 27px; font-weight: 500; }
.feature-card p { margin: 0; color: rgba(255,255,255,.62); font-size: 14px; line-height: 1.75; }
.statement { margin: 50px 0 0; padding: 28px 40px; border: 1px solid currentColor; border-radius: 999px; text-align: center; font-family: var(--serif); font-size: clamp(18px, 2vw, 26px); font-style: normal; }
.ai-shift .statement { color: var(--gold-soft); border-color: rgba(216,164,143,.34); }

.deep-water { background: linear-gradient(180deg, #f6ede4, var(--paper)); }
.phase-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; border-block: 1px solid var(--line); }
.phase-list li { display: grid; grid-template-columns: auto 1fr; gap: 25px; min-height: 260px; padding: 42px 36px; border-right: 1px solid var(--line); }
.phase-list li:last-child { border-right: 0; }
.phase-list > li > span { color: var(--gold); font-family: var(--serif); font-size: 44px; line-height: 1; }
.phase-list h3 { margin: 3px 0 28px; font-family: var(--serif); font-size: 32px; font-weight: 500; }
.phase-list p { margin: 0; color: var(--muted); }
.role-banner { display: grid; grid-template-columns: 180px 1fr; gap: 30px; align-items: center; margin-top: 30px; padding: 28px 34px; background: var(--gold); color: white; border-radius: 20px; }
.role-banner small { letter-spacing: .15em; }
.role-banner strong { font-family: var(--serif); font-size: clamp(20px, 2.1vw, 30px); font-weight: 500; }

.world-window { position: relative; min-height: 900px; display: grid; align-items: end; background: var(--ink); color: white; overflow: hidden; }
.world-window-image { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(26,17,14,.9) 0, rgba(26,17,14,.55) 42%, rgba(26,17,14,.1) 80%), linear-gradient(to top, rgba(26,17,14,.92), transparent 60%), url("assets/images/image1.webp") center/cover no-repeat; transform: scale(1.02); }
.world-window-content { position: relative; z-index: 1; padding-block: 130px 100px; }
.eyebrow.light { color: #f3c9b8; }
.world-window h2 { max-width: 800px; margin: 20px 0 20px; font-family: var(--serif); font-size: clamp(54px, 7vw, 104px); font-weight: 400; line-height: 1.08; letter-spacing: -.05em; }
.world-window-content > p { max-width: 700px; color: rgba(255,255,255,.72); font-size: 18px; }
.world-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 70px 0 0; padding: 0; list-style: none; }
.world-points li { padding: 24px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); border-radius: 20px; backdrop-filter: blur(10px); }
.world-points strong { display: block; margin-bottom: 7px; font-family: var(--serif); font-size: 20px; font-weight: 500; }
.world-points span { color: rgba(255,255,255,.62); font-size: 13px; }

.organizer { background: var(--paper-2); }
.level-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.level-card { min-height: 330px; padding: 34px; border: 1px solid var(--line); border-radius: 28px; background: rgba(255,255,255,.48); }
.level-card > span { color: var(--gold); font-family: var(--serif); font-size: 50px; }
.level-card small { display: block; margin-top: 26px; color: var(--gold-deep); letter-spacing: .14em; }
.level-card h3 { margin: 10px 0 20px; font-family: var(--serif); font-size: 27px; font-weight: 500; }
.level-card p { color: var(--muted); }
.organizer .statement, .incubation .statement { color: var(--gold-deep); border-color: var(--line); }

.architecture { background: #f3e7dc; overflow: hidden; }
.architecture-stage { position: relative; display: grid; grid-template-columns: 1fr 1.35fr 1fr; gap: 20px; align-items: center; min-height: 600px; }
.architecture-core { position: relative; align-self: stretch; display: grid; align-items: center; justify-items: center; min-height: 600px; overflow: hidden; border-radius: 240px 240px 40px 40px; background: rgba(255,255,255,.5); border: 1px solid rgba(183,110,89,.3); }
.architecture-core img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .58; }
.core-halo { position: absolute; z-index: 1; width: 74%; aspect-ratio: 1; border: 1px solid rgba(183,110,89,.4); border-radius: 50%; box-shadow: 0 0 0 40px rgba(255,255,255,.18), 0 0 0 80px rgba(183,110,89,.08); }
.core-copy { position: relative; z-index: 2; text-align: center; }
.core-copy span, .architecture-wing > span { color: var(--gold-deep); font-size: 12px; letter-spacing: .14em; }
.core-copy h3 { margin: 12px 0; font-family: var(--serif); font-size: 54px; font-weight: 500; }
.core-copy p { margin: 0; line-height: 2.1; }
.architecture-wing { padding: 36px; background: rgba(255,255,255,.62); border: 1px solid var(--line); border-radius: 26px; box-shadow: 0 20px 50px rgba(67,37,26,.07); }
.architecture-wing h3 { margin: 14px 0 18px; font-family: var(--serif); font-size: 36px; font-weight: 500; }
.architecture-wing p { color: var(--muted); }

.pain-points { background: var(--paper-2); }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pain-card { display: grid; grid-template-columns: 66px 1fr; column-gap: 24px; align-items: start; padding: 34px; background: var(--paper); border: 1px solid var(--line); border-radius: 24px; }
.pain-card img { grid-row: span 2; width: 48px; height: 48px; object-fit: contain; }
.pain-card h3 { margin: 0 0 6px; font-family: var(--serif); font-size: 28px; font-weight: 500; }
.pain-card p { margin: 0; color: var(--muted); }

.models { background: var(--ink); color: white; }
.models .section-heading p { color: rgba(255,255,255,.58); }
.models .eyebrow { color: var(--gold-soft); }
.model-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; align-items: start; }
.model-card { padding: 30px; background: linear-gradient(160deg, rgba(255,255,255,.08), rgba(255,255,255,.025)); border: 1px solid rgba(255,255,255,.12); border-radius: 28px; }
.model-index { float: right; color: rgba(255,255,255,.24); font-family: var(--serif); font-size: 56px; line-height: 1; }
.model-card > img { width: 64px; height: 64px; margin-bottom: 50px; object-fit: contain; }
.model-card small { display: block; color: var(--gold-soft); letter-spacing: .12em; }
.model-card h3 { min-height: 72px; margin: 10px 0 18px; font-family: var(--serif); font-size: 26px; font-weight: 500; line-height: 1.4; }
.model-card > p { min-height: 56px; color: rgba(255,255,255,.58); font-size: 14px; }
.model-card details { margin-top: 28px; border-top: 1px solid rgba(255,255,255,.15); }
.model-card summary { padding: 20px 0 0; color: var(--gold-soft); cursor: pointer; font-size: 13px; letter-spacing: .08em; }
.model-card details ol, .model-card details ul { margin: 22px 0 0; padding: 0; list-style: none; }
.model-card details li { margin-bottom: 16px; color: rgba(255,255,255,.64); font-size: 13px; }
.model-card details li strong { display: block; color: white; font-family: var(--serif); font-size: 17px; font-weight: 500; }
.model-card .values-list li { display: grid; grid-template-columns: 48px 1fr; gap: 10px; }
.model-card .values-list li strong { grid-row: span 1; }
.model-card .detail-end, .model-card .source { color: var(--gold-soft); font-size: 12px; }
.connection-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; margin: 22px 0; }
.connection-flow span { padding: 5px 8px; background: rgba(183,110,89,.2); border-radius: 999px; font-size: 11px; }
.connection-flow i { color: var(--gold-soft); font-style: normal; }
.models .statement { color: var(--gold-soft); border-color: rgba(216,164,143,.34); }

.education { background: var(--paper); }
.education-intro { display: grid; grid-template-columns: 1fr .8fr; gap: 80px; align-items: end; margin-bottom: 70px; }
.education-kicker { padding: 34px; border-left: 1px solid var(--gold); font-family: var(--serif); font-size: clamp(24px, 3vw, 42px); line-height: 1.4; }
.education-kicker strong, .education-kicker span { display: block; font-weight: 500; }
.education-kicker span { color: var(--gold-deep); }
.education-track { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.education-track article { min-height: 260px; padding: 26px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 22px; }
.education-track img { width: 48px; height: 48px; margin-bottom: 48px; object-fit: contain; }
.education-track h3 { margin: 0 0 10px; font-family: var(--serif); font-size: 23px; font-weight: 500; }
.education-track p { color: var(--muted); font-size: 13px; }
.deliverables { margin-top: 70px; padding: 50px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 32px; }
.deliverables-title { display: grid; grid-template-columns: .65fr 1.35fr; gap: 50px; align-items: start; margin-bottom: 34px; }
.deliverables-title span { color: var(--gold-deep); font-size: 13px; letter-spacing: .08em; }
.deliverables-title h3 { margin: 0; font-family: var(--serif); font-size: clamp(26px, 3vw, 42px); font-weight: 500; line-height: 1.4; }
.table-row { display: grid; grid-template-columns: .65fr 1.35fr 1fr; gap: 24px; padding: 17px 10px; border-top: 1px solid var(--line); font-size: 14px; }
.table-row > *:last-child { color: var(--gold-deep); }
.table-head { color: var(--muted); font-size: 11px; letter-spacing: .1em; }
.table-head > *:last-child { color: var(--muted); }
.measure { margin: 28px 0 0; color: var(--gold-deep); text-align: center; font-size: 13px; letter-spacing: .06em; }

.exhibitions { background: #ecded3; }
.exhibition-advantages { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-bottom: 90px; border-block: 1px solid rgba(83,48,37,.22); }
.exhibition-advantages article { padding: 36px; border-right: 1px solid rgba(83,48,37,.22); }
.exhibition-advantages article:last-child { border-right: 0; }
.exhibition-advantages span { color: var(--gold-deep); font-family: var(--serif); font-size: 42px; }
.exhibition-advantages h3 { margin: 20px 0 9px; font-family: var(--serif); font-size: 28px; font-weight: 500; }
.exhibition-advantages p { color: var(--muted); }
.case-intro { display: flex; align-items: baseline; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.case-intro span { color: var(--gold-deep); font-size: 12px; letter-spacing: .12em; }
.case-intro h3 { margin: 0; font-family: var(--serif); font-size: clamp(30px, 4vw, 54px); font-weight: 500; }
.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.case-card { overflow: hidden; background: var(--paper-2); border-radius: 30px; }
.case-image { overflow: hidden; aspect-ratio: 16/10; }
.case-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.case-card:hover .case-image img { transform: scale(1.035); }
.case-image.alternate img { object-position: 42% 50%; }
.case-copy { padding: 34px; }
.case-copy small { color: var(--gold-deep); letter-spacing: .06em; }
.case-copy h3 { margin: 18px 0; font-family: var(--serif); font-size: 34px; font-weight: 500; line-height: 1.35; }
.case-copy p { color: var(--muted); }
.source { color: var(--muted); font-size: 11px; }
.exhibitions > .container > .source { margin-top: 18px; }

.incubation { background: var(--paper-2); }
.incubation-head { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: end; margin-bottom: 70px; }
.day-mark { display: flex; align-items: center; gap: 20px; padding: 24px 28px; background: var(--gold); color: white; border-radius: 24px; }
.day-mark strong { font-family: var(--serif); font-size: 72px; line-height: .9; font-weight: 400; }
.day-mark span { font-size: 12px; line-height: 1.6; letter-spacing: .08em; }
.incubation-loop { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.incubation-loop article { position: relative; padding: 26px; background: var(--paper); border: 1px solid var(--line); border-radius: 22px; }
.incubation-loop article:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -13px; top: 50%; display: grid; place-items: center; width: 26px; height: 26px; transform: translateY(-50%); background: var(--gold); color: white; border-radius: 50%; font-size: 12px; }
.incubation-loop img { width: 48px; height: 48px; margin-bottom: 40px; object-fit: contain; }
.incubation-loop h3 { margin: 0 0 6px; font-family: var(--serif); font-size: 23px; font-weight: 500; }
.incubation-loop p { margin: 0; color: var(--muted); }
.roadmap-title { margin: 110px 0 50px; }
.roadmap-title span { color: var(--gold-deep); font-size: 12px; letter-spacing: .12em; }
.roadmap-title h3 { margin: 12px 0; font-family: var(--serif); font-size: clamp(40px, 5vw, 72px); font-weight: 500; }
.roadmap-title p { color: var(--muted); }
.timeline { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
.timeline::before { content: ""; position: absolute; top: 31px; right: 0; left: 0; height: 1px; background: var(--line); }
.timeline li { position: relative; padding-right: 28px; }
.timeline .time { position: relative; z-index: 1; display: inline-flex; padding: 8px 13px; background: var(--paper-2); border: 1px solid var(--gold); border-radius: 999px; color: var(--gold-deep); font-size: 12px; }
.timeline li > div:last-child { min-height: 230px; margin-top: 34px; padding: 26px; background: var(--paper); border: 1px solid var(--line); border-radius: 22px; }
.timeline h4 { margin: 0 0 24px; font-family: var(--serif); font-size: 22px; font-weight: 500; }
.timeline p { color: var(--muted); font-size: 13px; }

.scenarios { background: var(--ink); color: white; }
.scenarios .eyebrow { color: var(--gold-soft); }
.scenarios .section-heading p { color: rgba(255,255,255,.58); }
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.scenario-card { padding: 28px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12); border-radius: 24px; }
.scenario-card > span { float: right; color: rgba(255,255,255,.24); font-family: var(--serif); font-size: 42px; }
.scenario-card img { width: 58px; height: 58px; margin-bottom: 50px; object-fit: contain; }
.scenario-card h3 { margin: 0 0 18px; font-family: var(--serif); font-size: 34px; font-weight: 500; }
.scenario-card p { color: rgba(255,255,255,.58); }
.scenario-result { max-width: 850px; margin: 50px auto 0; color: var(--gold-soft); text-align: center; font-family: var(--serif); font-size: clamp(18px, 2vw, 27px); }

.digital-base { background: linear-gradient(135deg, #f7f2ea 0%, #ead8cc 100%); overflow: hidden; }
.digital-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 90px; align-items: center; }
.digital-copy blockquote { margin: 50px 0 0; padding: 24px 0 24px 26px; border-left: 2px solid var(--gold); color: var(--gold-deep); font-family: var(--serif); font-size: 22px; }
.digital-map { position: relative; min-height: 620px; }
.digital-map::before { content: ""; position: absolute; inset: 10% 13%; border: 1px solid rgba(183,110,89,.3); border-radius: 50%; }
.digital-map::after { content: ""; position: absolute; inset: 22%; border: 1px solid rgba(183,110,89,.2); border-radius: 50%; }
.digital-core { position: absolute; z-index: 2; left: 50%; top: 50%; transform: translate(-50%, -50%); display: grid; justify-items: center; width: 230px; height: 230px; padding: 26px; background: var(--ink); color: white; border-radius: 50%; text-align: center; box-shadow: 0 25px 70px rgba(44,25,18,.25); }
.digital-core img { width: 72px; height: 80px; object-fit: contain; }
.digital-core strong { font-family: var(--serif); font-size: 23px; font-weight: 500; }
.digital-core span { color: var(--gold-soft); font-size: 11px; }
.node { position: absolute; z-index: 3; width: 260px; padding: 20px; background: rgba(255,250,244,.92); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 18px 55px rgba(64,38,29,.1); }
.node img { float: left; width: 42px; height: 42px; margin: 4px 14px 40px 0; object-fit: contain; }
.node h3 { margin: 0 0 4px; font-family: var(--serif); font-size: 19px; font-weight: 500; }
.node p { margin: 0; color: var(--muted); font-size: 12px; }
.node-a { top: 2%; left: 2%; }
.node-b { top: 13%; right: 0; }
.node-c { bottom: 3%; left: 10%; }

.faq { background: var(--paper-2); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 110px; align-items: start; }
.faq-intro { position: sticky; top: 130px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; justify-content: space-between; gap: 30px; padding: 28px 4px; cursor: pointer; list-style: none; font-family: var(--serif); font-size: 23px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: 0 0 34px; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 50%; color: var(--gold-deep); font-family: var(--sans); font-size: 18px; transition: .25s ease; }
.faq-list details[open] summary::after { transform: rotate(45deg); background: var(--gold); color: white; }
.faq-list details p { margin: -4px 60px 28px 4px; color: var(--muted); }

.closing { position: relative; display: grid; min-height: 900px; place-items: center; padding: 120px 0; background: radial-gradient(circle at center, #5c3228 0, #2a1d19 50%, #171211 100%); color: white; overflow: hidden; }
.closing::before { content: ""; position: absolute; inset: 0; opacity: .16; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 60px 60px; }
.closing-orbit { position: absolute; width: min(70vw, 820px); aspect-ratio: 1; border: 1px solid rgba(216,164,143,.34); border-radius: 50%; box-shadow: 0 0 0 80px rgba(216,164,143,.05), 0 0 0 160px rgba(216,164,143,.025); }
.closing-content { position: relative; z-index: 1; text-align: center; }
.closing-mark { width: 130px; height: 148px; margin: 0 auto 20px; object-fit: contain; filter: drop-shadow(0 20px 35px rgba(0,0,0,.25)); }
.closing h2 { margin: 20px 0 34px; font-family: var(--serif); font-size: clamp(56px, 7.5vw, 108px); font-weight: 400; line-height: 1.08; letter-spacing: -.05em; }
.closing-lines { display: flex; justify-content: center; align-items: center; gap: 16px; color: var(--gold-soft); font-size: 14px; }
.closing-content > p { margin: 35px 0 30px; color: rgba(255,255,255,.68); font-size: 18px; }
.button-gold { background: var(--gold); color: white; }

.site-footer { padding: 48px 0; background: #130f0e; color: white; border-top: 1px solid rgba(255,255,255,.08); }
.footer-grid { display: grid; grid-template-columns: 1fr auto 1.2fr; gap: 50px; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 16px; }
.footer-brand img { width: 60px; height: 68px; object-fit: contain; }
.footer-brand div { display: grid; }
.footer-brand strong { font-family: var(--serif); font-size: 21px; letter-spacing: .12em; }
.footer-brand span { color: rgba(255,255,255,.48); font-size: 11px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.site-footer nav a { color: rgba(255,255,255,.65); font-size: 12px; }
.footer-note { text-align: right; }
.footer-note p { margin: 0 0 8px; color: var(--gold-soft); font-size: 12px; }
.footer-note small { color: rgba(255,255,255,.38); font-size: 10px; line-height: 1.6; }
.back-top { position: fixed; z-index: 90; right: 22px; bottom: 22px; width: 48px; height: 48px; border: 1px solid rgba(255,255,255,.22); border-radius: 50%; background: rgba(33,27,25,.88); color: white; cursor: pointer; box-shadow: 0 10px 30px rgba(0,0,0,.2); opacity: 0; pointer-events: none; transform: translateY(10px); transition: .25s ease; }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.2,.65,.3,1), transform .8s cubic-bezier(.2,.65,.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  :root { --container: min(100% - 42px, 900px); }
  .site-header { border-radius: 26px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: calc(100% + 10px); right: 0; left: 0; display: grid; gap: 4px; padding: 12px; background: rgba(255,250,244,.98); border: 1px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(-8px); transition: .25s ease; }
  .site-nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .site-nav a { padding: 13px 16px; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] > span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] > span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .section { padding: 105px 0; }
  .four-up, .education-track, .incubation-loop, .scenario-grid { grid-template-columns: 1fr 1fr; }
  .model-grid { grid-template-columns: 1fr; }
  .model-card h3, .model-card > p { min-height: 0; }
  .model-card > img { margin-bottom: 28px; }
  .architecture-stage { grid-template-columns: 1fr 1fr; }
  .architecture-core { grid-column: 1 / -1; grid-row: 1; min-height: 520px; }
  .wing-left { grid-column: 1; }
  .wing-right { grid-column: 2; }
  .timeline { grid-template-columns: 1fr 1fr; gap: 30px; }
  .timeline::before { display: none; }
  .digital-grid, .faq-grid { grid-template-columns: 1fr; gap: 70px; }
  .faq-intro { position: static; }
  .digital-map { min-height: 600px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-note { grid-column: 1 / -1; text-align: left; }
}

@media (max-width: 720px) {
  :root { --container: min(100% - 28px, 620px); }
  body { font-size: 15px; }
  .site-header { top: 10px; width: calc(100vw - 20px); padding-left: 12px; }
  .brand img { width: 42px; height: 48px; }
  .brand-copy strong { font-size: 16px; }
  .brand-copy small { font-size: 8px; }
  .hero { padding-top: 145px; }
  .hero h1 { font-size: clamp(43px, 14vw, 68px); }
  .hero-subtitle { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; width: min(100%, 390px); margin-inline: auto; }
  .hero-visual { width: 100%; border-radius: 70px 70px 20px 20px; }
  .hero-visual img { min-height: 360px; object-fit: cover; object-position: 62% center; }
  .hero-visual figcaption { flex-wrap: wrap; justify-content: center; width: calc(100% - 24px); font-size: 9px; }
  .section { padding: 82px 0; }
  .section-heading { margin-bottom: 42px; }
  .section-heading h2, .split-heading h2, .education-intro h2, .incubation-head h2, .digital-copy h2, .faq-intro h2 { font-size: clamp(37px, 11vw, 56px); }
  .display-title { font-size: clamp(42px, 12vw, 62px); }
  .split-heading, .editorial-grid, .education-intro, .incubation-head { grid-template-columns: 1fr; gap: 24px; }
  .section-meta { display: flex; align-items: baseline; gap: 20px; }
  .section-meta span { font-size: 42px; }
  .mission-copy { grid-template-columns: 1fr; gap: 18px; }
  .mission-copy p { font-size: 16px; }
  .four-up, .pain-grid, .education-track, .incubation-loop, .scenario-grid, .case-grid, .level-grid, .world-points { grid-template-columns: 1fr; }
  .feature-card { min-height: 260px; }
  .feature-card img { margin-top: 35px; }
  .statement { border-radius: 24px; padding: 24px; }
  .phase-list { grid-template-columns: 1fr; }
  .phase-list li { min-height: 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .phase-list li:last-child { border-bottom: 0; }
  .role-banner { grid-template-columns: 1fr; }
  .world-window { min-height: auto; }
  .world-window-content { padding-block: 100px 70px; }
  .world-window h2 { font-size: clamp(50px, 14vw, 74px); }
  .architecture-stage { grid-template-columns: 1fr; }
  .architecture-core, .wing-left, .wing-right { grid-column: 1; }
  .architecture-core { min-height: 500px; }
  .pain-card { grid-template-columns: 52px 1fr; padding: 24px; }
  .model-card { padding: 24px; }
  .education-kicker { padding: 24px; }
  .deliverables { padding: 26px 18px; }
  .deliverables-title { grid-template-columns: 1fr; gap: 14px; }
  .table-head { display: none; }
  .table-row { grid-template-columns: 1fr; gap: 4px; padding: 18px 4px; }
  .table-row > *:nth-child(2) { color: var(--muted); }
  .case-intro { display: block; }
  .case-copy { padding: 26px; }
  .exhibition-advantages { grid-template-columns: 1fr; }
  .exhibition-advantages article { border-right: 0; border-bottom: 1px solid rgba(83,48,37,.22); }
  .exhibition-advantages article:last-child { border-bottom: 0; }
  .day-mark { justify-self: start; }
  .incubation-loop article:not(:last-child)::after { content: "↓"; right: 50%; top: auto; bottom: -13px; transform: translateX(50%); }
  .timeline { grid-template-columns: 1fr; }
  .timeline li { padding-right: 0; }
  .timeline li > div:last-child { min-height: 0; }
  .scenario-card img { margin-bottom: 30px; }
  .digital-map { display: grid; gap: 12px; min-height: 0; }
  .digital-map::before, .digital-map::after { display: none; }
  .digital-core, .node { position: static; width: 100%; transform: none; }
  .digital-core { height: auto; min-height: 260px; border-radius: 26px; }
  .node img { margin-bottom: 30px; }
  .faq-list summary { font-size: 19px; }
  .faq-list details p { margin-right: 10px; }
  .closing { min-height: 760px; }
  .closing h2 { font-size: clamp(48px, 14vw, 72px); }
  .closing-lines { flex-direction: column; }
  .closing-lines i { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .site-footer nav { display: grid; grid-template-columns: 1fr 1fr; }
}

@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; }
}