:root {
  --ink: #10101a;
  --ink-soft: #222238;
  --paper: #f7f5f1;
  --paper-soft: #ece9f3;
  --white: #fff;
  --purple: #7939d1;
  --purple-dark: #421173;
  --violet: #b68cff;
  --cyan: #4de6e0;
  --gold: #ffd35a;
  --muted: #6e6a78;
  --line: rgba(20, 18, 30, .13);
  --radius: 26px;
  --shadow: 0 28px 80px rgba(17, 7, 34, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; position: relative; z-index: 1; }
.section { padding: 132px 0; overflow: hidden; }
.section-light { background: var(--paper); }
.section-soft { background: var(--paper-soft); }
.section-dark { color: var(--white); background: #11101d; position: relative; overflow: hidden; }
.section-ink { color: var(--white); background: var(--ink); }
.section-purple {
  color: var(--white);
  background: radial-gradient(circle at 100% 0, #9a5aeb 0, transparent 36%), linear-gradient(135deg, #45127a, #792fc0 70%, #59209a);
}

.progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 100; background: transparent; }
.progress span { display: block; width: 0; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--violet)); }
.topbar {
  height: 72px; padding: 0 34px; position: fixed; inset: 0 0 auto; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  color: white; background: rgba(14, 13, 25, .78); border-bottom: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 12px; letter-spacing: .16em; font-weight: 800; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: var(--ink); background: var(--cyan); letter-spacing: 0; }
.desktop-nav { display: flex; gap: 30px; font-size: 13px; color: rgba(255,255,255,.75); }
.desktop-nav a:hover { color: white; }
.desktop-nav .portfolio-home-link { color: var(--cyan); }
.menu-button { display: none; color: white; background: transparent; border: 1px solid rgba(255,255,255,.3); border-radius: 999px; padding: 7px 15px; }
.mobile-nav { display: none; }

.hero { min-height: 940px; padding: 150px 0 60px; display: flex; flex-direction: column; justify-content: center; }
.hero-grid { display: grid; grid-template-columns: .86fr 1.14fr; align-items: center; gap: 40px; }
.eyebrow, .section-index { margin: 0 0 22px; font-size: 12px; font-weight: 800; letter-spacing: .17em; }
.eyebrow { color: rgba(255,255,255,.68); }
.eyebrow span { margin-right: 8px; color: var(--ink); background: var(--cyan); padding: 6px 10px; border-radius: 999px; }
.hero h1 { margin: 0; font-size: clamp(64px, 5.2vw, 78px); line-height: .98; letter-spacing: -.065em; }
.case-company-logo { width: 106px; height: auto; margin-bottom: 30px; filter: invert(1) brightness(2); opacity: .88; }
.hero-subtitle { margin: 30px 0 10px; font-size: 26px; font-weight: 700; color: var(--violet); }
.hero-summary { max-width: 580px; color: rgba(255,255,255,.72); font-size: 18px; }
.meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 24px; margin-top: 46px; }
.meta-grid div { border-top: 1px solid rgba(255,255,255,.2); padding-top: 12px; }
.meta-grid span, .collab-strip span { display: block; margin-bottom: 5px; color: var(--violet); font-size: 10px; letter-spacing: .15em; font-weight: 800; }
.meta-grid strong { font-size: 13px; line-height: 1.35; display: block; }
.hero-visual { position: relative; height: 660px; }
.phone { position: absolute; margin: 0; width: 260px; border: 7px solid #27243a; border-radius: 35px; overflow: hidden; background: #27243a; box-shadow: var(--shadow); }
.phone img { width: 100%; }
.phone-main { width: 300px; left: 50%; top: 5px; transform: translateX(-50%) rotate(1deg); z-index: 3; }
.phone-left { left: 0; top: 120px; transform: rotate(-8deg); z-index: 1; }
.phone-right { right: 0; top: 105px; transform: rotate(8deg); z-index: 2; }
.credit { display: flex; gap: 22px; flex-wrap: wrap; color: rgba(255,255,255,.48); font-size: 11px; letter-spacing: .04em; }
.hero-credit { margin-top: 24px; justify-content: flex-end; }
.ambient { position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.ambient-one { width: 520px; height: 520px; right: -130px; top: 50px; background: radial-gradient(circle, rgba(128,59,219,.55), transparent 68%); }
.ambient-two { width: 480px; height: 480px; left: -220px; bottom: -160px; background: radial-gradient(circle, rgba(51,218,211,.2), transparent 68%); }
.ambient-three { width: 800px; height: 800px; right: -330px; top: 300px; background: radial-gradient(circle, rgba(130,60,231,.4), transparent 66%); }

.section-heading { max-width: 820px; margin-bottom: 68px; }
.section-index { color: var(--purple); }
.section-dark .section-index, .section-ink .section-index, .section-purple .section-index { color: var(--cyan); }
.section-heading h2, .decision-header h2 { margin: 0; font-size: clamp(43px, 5vw, 72px); line-height: 1.12; letter-spacing: -.045em; }
.no-break { white-space: nowrap; }
.challenge-title { white-space: nowrap; font-size: clamp(22px, 4.25vw, 64px) !important; }
.lead { margin: 25px 0 0; max-width: 820px; font-size: 21px; line-height: 1.65; color: var(--muted); }
.section-dark .lead, .section-ink .lead, .section-purple .lead { color: rgba(255,255,255,.7); }
.note { margin-top: 22px; padding-left: 16px; border-left: 3px solid var(--violet); font-size: 13px; color: var(--muted); }
.context-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: center; }
.context-statement blockquote { margin: 30px 0 0; padding: 24px; background: white; border-radius: 18px; font-size: 20px; box-shadow: 0 12px 35px rgba(24,17,39,.07); }
.opportunity-map { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; align-items: center; gap: 12px; }
.map-node { min-height: 185px; padding: 26px 20px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.65); display: flex; flex-direction: column; justify-content: center; }
.map-node span { color: var(--purple); font-size: 9px; letter-spacing: .12em; font-weight: 800; }
.map-node strong { margin: 12px 0 5px; font-size: 19px; line-height: 1.3; }
.map-node small { color: var(--muted); }
.map-node.accent { color: white; border: 0; background: linear-gradient(145deg, #6224a0, #973dde); box-shadow: 0 20px 50px rgba(92,36,146,.25); }
.map-node.accent span, .map-node.accent small { color: rgba(255,255,255,.7); }
.map-arrow { color: var(--purple); font-weight: 900; }
.four-pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 70px; }
.pillar { padding: 28px; border-top: 1px solid var(--line); }
.pillar b { color: var(--purple); font-size: 12px; }
.pillar h3 { margin: 15px 0 8px; font-size: 21px; }
.pillar p { margin: 0; color: var(--muted); font-size: 14px; }

.role-grid { display: grid; grid-template-columns: 1.15fr .45fr .9fr; gap: 54px; align-items: start; }
.role-grid .section-heading { margin: 0; }
.role-card { padding: 30px; border-radius: var(--radius); background: linear-gradient(145deg, #7331bd, #472078); }
.large-number { margin: 0; font-size: 54px; line-height: 1; color: var(--cyan); font-weight: 900; letter-spacing: -.06em; }
.role-card h3 { margin: 22px 0 5px; }
.role-card p:last-child { color: rgba(255,255,255,.68); font-size: 14px; }
.responsibility-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid rgba(255,255,255,.2); }
.responsibility-list li { padding: 13px 0 13px 23px; border-bottom: 1px solid rgba(255,255,255,.12); position: relative; font-size: 14px; color: rgba(255,255,255,.78); }
.responsibility-list li::before { content: "✓"; position: absolute; left: 0; color: var(--cyan); }

.challenge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.challenge-card { min-height: 590px; padding: 36px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.52); display: flex; flex-direction: column; }
.challenge-card span { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; color: white; background: var(--purple); font-weight: 900; }
.challenge-card h3 { margin: 42px 0 15px; font-size: 24px; line-height: 1.35; }
.challenge-card p { color: var(--muted); font-size: 15px; }
.challenge-evidence { margin-top: auto; padding: 20px; min-height: 184px; border-radius: 18px; background: white; border: 1px solid rgba(20,18,30,.08); overflow: hidden; }
.challenge-evidence .evidence-label { margin: 0 0 17px; color: var(--purple); font-size: 9px; line-height: 1; letter-spacing: .13em; font-weight: 900; }
.evidence-source { display: block; margin-top: 13px; color: #918b9b; font-size: 10px; line-height: 1.55; }
.motive-cloud { display: flex; flex-wrap: wrap; gap: 7px; }
.motive-cloud b { padding: 5px 10px; border-radius: 999px; color: #5d298d; background: #eee2fa; font-size: 11px; }
.intent-scale { position: relative; display: grid; grid-template-columns: repeat(3,1fr); margin-top: 28px; }
.intent-scale::before { content: ""; position: absolute; left: 16%; right: 16%; top: 6px; height: 2px; background: linear-gradient(90deg,#c8bed2,var(--purple)); }
.intent-scale div { position: relative; text-align: center; }
.intent-scale i { display: block; position: relative; z-index: 1; width: 13px; height: 13px; margin: 0 auto 7px; border: 3px solid white; border-radius: 50%; background: var(--purple); box-shadow: 0 0 0 1px #b996d5; }
.intent-scale small { color: var(--muted); font-size: 9px; }
.join-paths { display: grid; grid-template-columns: repeat(3,1fr); gap: 6px; }
.join-paths b { padding: 8px 3px; border-radius: 8px; color: white; background: linear-gradient(135deg,#5c2393,#8b46bd); font-size: 10px; text-align: center; }
.rule-line { width: 2px; height: 20px; margin: 0 auto; background: #cbb5df; position: relative; }
.rule-line::after { content: ""; position: absolute; width: 185px; height: 1px; left: 50%; bottom: 0; transform: translateX(-50%); background: #cbb5df; }
.role-row { display: flex; justify-content: space-between; padding: 8px 5px 0; }
.role-row small { color: var(--purple-dark); font-weight: 800; }
.edge-copy { margin: 16px 0 0 !important; padding-top: 11px; border-top: 1px dashed #ddd3e5; color: var(--muted) !important; font-size: 9px !important; text-align: center; }
.participation-gap { display: grid; grid-template-columns: 1fr auto 1fr; gap: 10px; align-items: center; }
.participation-gap div { padding: 12px 7px; border-radius: 10px; text-align: center; background: #f2edf6; }
.participation-gap div:last-child { color: white; background: var(--purple); }
.participation-gap b, .participation-gap small { display: block; }
.participation-gap b { font-size: 11px; }
.participation-gap small { font-size: 8px; color: var(--muted); }
.participation-gap div:last-child small { color: rgba(255,255,255,.65); }
.participation-gap > i { color: #b3536e; font-style: normal; font-weight: 900; }
.participation-loop { display: flex; align-items: center; justify-content: space-between; gap: 6px; margin-top: 20px; }
.participation-loop b { color: var(--purple-dark); font-size: 9px; }
.participation-loop i { color: var(--purple); font-style: normal; }

.lifecycle { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px; padding: 0; margin: 0; list-style: none; border-radius: var(--radius); overflow: hidden; background: rgba(255,255,255,.18); }
.lifecycle li { min-height: 230px; padding: 25px 18px; background: rgba(35,8,65,.54); display: flex; flex-direction: column; justify-content: flex-end; position: relative; }
.lifecycle li::after { content: "→"; position: absolute; right: -7px; top: 45px; z-index: 2; color: var(--cyan); }
.lifecycle li:last-child::after { display: none; }
.lifecycle b { position: absolute; top: 25px; color: var(--cyan); font-size: 11px; letter-spacing: .12em; }
.lifecycle span { font-size: 21px; font-weight: 800; }
.lifecycle small { color: rgba(255,255,255,.56); }
.system-caption { max-width: 700px; margin: 50px 0 0 auto; padding-left: 24px; border-left: 3px solid var(--cyan); }
.system-caption p { margin: 0 0 5px; color: var(--cyan); font-size: 11px; letter-spacing: .12em; }
.system-caption strong { font-size: 21px; }

.decision-header { max-width: 900px; margin-bottom: 70px; }
.decision-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: center; }
.decision-copy > p { color: var(--muted); }
.problem-label, .solution-label { margin: 0 !important; color: #c24a68 !important; font-size: 11px; letter-spacing: .15em; font-weight: 900; }
.solution-label { margin-top: 34px !important; color: var(--purple) !important; }
.decision-copy h3, .edge-states h3 { margin: 8px 0 18px; font-size: 30px; line-height: 1.25; }
.tag-list { display: flex; flex-wrap: wrap; gap: 9px; padding: 0; margin: 0 0 25px; list-style: none; }
.tag-list li { padding: 7px 14px; border-radius: 999px; color: var(--purple-dark); background: #e9ddf6; font-size: 13px; font-weight: 700; }
.decision-copy blockquote, .motion-copy blockquote { margin: 35px 0 0; padding-left: 22px; border-left: 3px solid var(--purple); font-size: 20px; font-weight: 700; line-height: 1.45; }
.showcase-card { margin: 0; padding: 26px 26px 0; border-radius: 34px; background: linear-gradient(145deg, #362053, #7d3aab); overflow: hidden; }
.showcase-card img { width: min(410px, 80%); margin: 0 auto -120px; border: 6px solid #2d2940; border-radius: 30px; box-shadow: var(--shadow); }
.showcase-card figcaption { color: rgba(255,255,255,.65); padding: 15px 0; font-size: 11px; letter-spacing: .09em; text-transform: uppercase; }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.path-grid article { padding: 30px; border-radius: 22px; background: white; box-shadow: 0 16px 45px rgba(28,20,48,.07); }
.path-grid b { color: var(--purple); }
.path-grid h3 { margin: 35px 0 8px; font-size: 24px; }
.path-grid p { margin: 0; color: var(--muted); font-size: 14px; }
.governance-layout { display: grid; grid-template-columns: .58fr 1.42fr; align-items: center; gap: 64px; margin-top: 65px; }
.edge-states ul { padding-left: 20px; color: var(--muted); }
.edge-states > p:last-child { font-weight: 700; }
.governance-gallery { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; padding: 30px; border-radius: 32px; background: linear-gradient(145deg, #381753, #8d48b5); overflow: hidden; }
.governance-gallery figure { margin: 0; }
.governance-gallery figure:nth-child(2) { transform: translateY(28px); }
.governance-gallery img { border: 4px solid #27243a; border-radius: 22px; box-shadow: var(--shadow); }
.governance-gallery figcaption { margin-top: 9px; color: rgba(255,255,255,.65); font-size: 9px; letter-spacing: .06em; text-align: center; text-transform: uppercase; }

.coinbank-section { padding-bottom: 100px; }
.coin-loop { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 14px; align-items: center; margin-bottom: 100px; }
.coin-loop div { min-height: 150px; padding: 24px; border: 1px solid rgba(255,255,255,.13); border-radius: 20px; background: rgba(255,255,255,.06); }
.coin-loop div span { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; color: var(--ink); background: var(--gold); font-size: 12px; font-weight: 900; }
.coin-loop strong, .coin-loop small { display: block; }
.coin-loop strong { margin-top: 20px; }
.coin-loop small { color: rgba(255,255,255,.5); }
.coin-loop i { color: var(--gold); font-style: normal; }
.coin-intro { max-width: 900px; margin: 0 auto 75px; text-align: center; }
.coin-copy { font-size: 20px; color: rgba(255,255,255,.7); }
.coin-copy h3 { margin: 45px 0 0; color: white; font-size: 34px; }
.dark-note { color: rgba(255,255,255,.48); }
.coin-intro .note { display: inline-block; margin-top: 18px; padding-left: 12px; text-align: left; }
.initiative-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.initiative-card { padding: 28px; border-radius: 24px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.initiative-card > span { color: var(--cyan); font-size: 11px; letter-spacing: .14em; font-weight: 900; }
.initiative-card h3 { margin: 26px 0 0; font-size: 30px; }
.initiative-card h4 { margin: 4px 0 20px; color: var(--violet); }
.initiative-card p, .initiative-card li { color: rgba(255,255,255,.62); font-size: 14px; }
.initiative-card ul { padding-left: 18px; }
.initiative-visual { margin: 25px 0 28px; padding: 18px 18px 0; border-radius: 20px; background: rgba(16,11,28,.52); overflow: hidden; }
.initiative-visual img { width: min(100%, 245px); margin: 0 auto -42px; border: 4px solid #302a46; border-radius: 22px; box-shadow: 0 18px 45px rgba(0,0,0,.28); }
.initiative-visual figcaption { position: relative; margin: 0 -18px; padding: 14px 16px; color: rgba(255,255,255,.55); background: rgba(10,7,17,.88); font-size: 9px; letter-spacing: .1em; text-transform: uppercase; }
.initiative-card:nth-child(1) { border-top: 3px solid var(--gold); }
.initiative-card:nth-child(2) { border-top: 3px solid var(--cyan); }
.initiative-card:nth-child(3) { border-top: 3px solid var(--violet); }
.coin-credit { margin-top: 35px; }

.collab-strip { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 22px; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 22px; }
.collab-strip strong { font-size: 14px; line-height: 1.45; }
.collab-strip i { color: var(--purple); font-style: normal; font-weight: 900; }
.motion-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; align-items: center; margin-top: 110px; }
.motion-copy h3 { font-size: 34px; line-height: 1.3; }
.motion-copy ol { padding: 0; margin: 38px 0 0; list-style: none; }
.motion-copy li { display: grid; grid-template-columns: 110px 1fr; padding: 15px 0; border-bottom: 1px solid var(--line); }
.motion-copy li span { color: var(--muted); }
.motion-demo { position: relative; height: 650px; border-radius: 34px; background: linear-gradient(145deg, #2c123f, #7735a5); overflow: hidden; box-shadow: 0 28px 70px rgba(53,25,76,.22); }
.motion-frame { position: absolute; inset: 30px 30px 76px; opacity: 0; transform: scale(.96) translateY(12px); transition: opacity .7s ease, transform .7s ease; display: flex; justify-content: center; }
.motion-frame.active { opacity: 1; transform: scale(1) translateY(0); }
.motion-frame img { height: 100%; width: auto; border: 5px solid #28243a; border-radius: 27px; box-shadow: var(--shadow); }
.motion-badge { position: absolute; left: 25px; top: 22px; z-index: 5; padding: 6px 12px; border-radius: 999px; color: white; background: rgba(16,16,26,.8); font-size: 9px; letter-spacing: .12em; }
.motion-controls { position: absolute; inset: auto 24px 20px; display: grid; grid-template-columns: 36px 1fr auto; align-items: center; gap: 15px; color: white; }
.motion-controls button { width: 34px; height: 34px; border: 1px solid rgba(255,255,255,.4); border-radius: 50%; color: white; background: rgba(0,0,0,.15); cursor: pointer; }
.motion-controls p { margin: 0; font-size: 12px; min-width: 82px; }
.motion-timeline { height: 3px; background: rgba(255,255,255,.25); overflow: hidden; }
.motion-timeline span { display: block; height: 100%; width: 0; background: var(--cyan); }
.final-gallery { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin-top: 100px; align-items: start; }
.final-gallery figure { margin: 0; }
.final-gallery figure:nth-child(even) { margin-top: 60px; }
.final-gallery img { border: 5px solid #28243a; border-radius: 26px; box-shadow: 0 20px 55px rgba(30,18,48,.2); }
.final-gallery figcaption { margin-top: 10px; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.gallery-credit { color: var(--muted); margin-top: 30px; }

.data-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.data-card { padding: 35px; border: 1px solid rgba(255,255,255,.13); border-radius: 24px; background: rgba(255,255,255,.055); }
.data-kicker { min-height: 34px; margin: 0 0 35px; color: var(--cyan); font-size: 10px; letter-spacing: .13em; font-weight: 900; }
.data-card > strong { display: block; color: var(--violet); font-size: 61px; line-height: 1; letter-spacing: -.06em; }
.data-card > p:not(.data-kicker):not(.interpretation) { margin: 9px 0 28px; color: rgba(255,255,255,.62); }
.comparison { display: flex; justify-content: space-between; padding: 15px 0; border-top: 1px solid rgba(255,255,255,.14); border-bottom: 1px solid rgba(255,255,255,.14); }
.comparison span { color: rgba(255,255,255,.58); }
.comparison b { color: white; }
.interpretation { margin: 24px 0 0; font-size: 14px; color: rgba(255,255,255,.72); }
.data-disclaimer { margin-top: 30px; color: rgba(255,255,255,.43); font-size: 12px; }

.reflection-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.reflection-grid .section-heading { position: sticky; top: 120px; height: fit-content; }
.reflection-list article { display: grid; grid-template-columns: 60px 1fr; gap: 20px; padding: 35px 0; border-top: 1px solid var(--line); }
.reflection-list span { color: var(--purple); font-size: 12px; font-weight: 900; }
.reflection-list h3 { margin: 0 0 10px; font-size: 25px; }
.reflection-list p { margin: 0; color: var(--muted); }
.closing-quote { grid-column: 1 / -1; margin: 50px 0 0; padding: 60px; border-radius: 30px; color: white; background: linear-gradient(135deg, #4b147c, #963dd3); font-size: clamp(24px, 3vw, 38px); line-height: 1.5; font-weight: 800; letter-spacing: -.025em; }
footer { color: white; background: #0a0911; padding: 35px 0; font-size: 13px; }
.case-footer-grid { display: grid; grid-template-columns: 1fr auto auto; gap: 35px; align-items: center; }
.case-footer p { margin: 0; }
.case-footer small { color: rgba(255,255,255,.42); }
.case-footer a { color: rgba(255,255,255,.65); }
.case-footer .footer-home { color: var(--cyan); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .75s ease, transform .75s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .hero { min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 800px; }
  .hero-visual { margin-top: 30px; }
  .context-layout, .role-grid, .decision-grid, .governance-layout, .coin-intro, .motion-layout, .reflection-grid { grid-template-columns: 1fr; }
  .role-grid .section-heading { margin-bottom: 20px; }
  .four-pillars { grid-template-columns: 1fr 1fr; }
  .lifecycle { grid-template-columns: repeat(3, 1fr); }
  .lifecycle li:nth-child(3)::after { display: none; }
  .initiative-grid { grid-template-columns: 1fr; }
  .final-gallery { grid-template-columns: repeat(3, 1fr); }
  .reflection-grid .section-heading { position: static; }
  .closing-quote { grid-column: auto; }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .container { width: min(100% - 32px, 620px); }
  .section { padding: 90px 0; }
  .topbar { height: 62px; padding: 0 16px; }
  .desktop-nav { display: none; }
  .menu-button { display: block; }
  .mobile-nav {
    position: fixed; top: 62px; left: 0; right: 0; z-index: 49; padding: 15px 20px 22px;
    color: white; background: rgba(14,13,25,.96); border-bottom: 1px solid rgba(255,255,255,.1);
    flex-direction: column; gap: 10px;
  }
  .mobile-nav.open { display: flex; }
  .mobile-nav a { padding: 7px 0; }
  .hero { padding-top: 120px; min-height: 900px; }
  .hero h1 { font-size: 58px; }
  .hero-subtitle { font-size: 21px; }
  .meta-grid { grid-template-columns: 1fr; }
  .hero-visual { height: 440px; margin-top: 45px; }
  .phone { width: 155px; border-width: 4px; border-radius: 23px; }
  .phone-main { width: 190px; }
  .phone-left { top: 80px; left: -5px; }
  .phone-right { top: 70px; right: -5px; }
  .hero-credit { margin-top: 15px; justify-content: flex-start; }
  .section-heading { margin-bottom: 45px; }
  .section-heading h2, .decision-header h2 { font-size: 39px; }
  .lead { font-size: 18px; }
  .opportunity-map { grid-template-columns: 1fr; }
  .map-arrow { transform: rotate(90deg); justify-self: center; }
  .four-pillars, .challenge-grid, .path-grid, .data-grid, .final-gallery { grid-template-columns: 1fr; }
  .challenge-card { min-height: 540px; }
  .challenge-card h3 { margin-top: 45px; }
  .lifecycle { grid-template-columns: 1fr 1fr; }
  .lifecycle li:nth-child(3)::after { display: block; }
  .lifecycle li:nth-child(even)::after { display: none; }
  .lifecycle li { min-height: 175px; }
  .decision-header { margin-bottom: 45px; }
  .showcase-card img { margin-bottom: -65px; }
  .governance-gallery { gap: 9px; padding: 18px 12px; }
  .governance-gallery img { border-width: 3px; border-radius: 16px; }
  .coin-loop { grid-template-columns: 1fr; }
  .coin-loop i { transform: rotate(90deg); justify-self: center; }
  .coin-intro { gap: 45px; }
  .initiative-card { padding: 27px; }
  .collab-strip { grid-template-columns: 1fr; }
  .collab-strip i { transform: rotate(90deg); justify-self: center; }
  .motion-layout { gap: 50px; margin-top: 75px; }
  .motion-copy li { grid-template-columns: 92px 1fr; }
  .motion-demo { height: 560px; }
  .motion-frame { inset: 25px 18px 78px; }
  .final-gallery { margin-top: 70px; }
  .final-gallery figure:nth-child(even) { margin-top: 0; }
  .final-gallery img { max-height: 640px; margin: 0 auto; }
  .data-card > strong { font-size: 55px; }
  .closing-quote { padding: 35px; }
  .case-footer-grid { grid-template-columns: 1fr; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .motion-frame { transition: none; }
}

/* OB observations: distinguish player, event and guild aggregates. */
.guild-case #review .metric-note { margin: 18px 0 0; color: #c4c0d2; font-size: 14px; line-height: 1.85; }
.guild-case #review .guild-group-observation { margin-top: 24px; padding: 24px 28px; border: 1px solid rgba(255,255,255,.14); border-radius: 20px; background: rgba(255,255,255,.035); }
.guild-case #review .guild-group-observation h3 { margin: 0 0 12px; font-size: 20px; color: #fff; }
.guild-case #review .guild-group-observation p { margin: 10px 0 0; line-height: 1.85; }
.guild-case #review .guild-group-observation strong { color: var(--violet); }