:root {
  --ink: #f4f0e6;
  --ink-2: rgba(244, 240, 230, .74);
  --ink-3: rgba(244, 240, 230, .52);
  --card: rgba(9, 20, 29, .74);
  --card-line: rgba(244, 240, 230, .14);
  --core: #ef6a52;
  --general: #eab24a;
  --sea: #4cc3e2;
  --shore: #86cd72;
  --flow: #ffd27a;
  --bad: #ff5a48;
  --data: #5fe3f0;
  --bg: #08131b;
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", serif;
  --sans: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.7 var(--sans); overflow-x: hidden; }
a { color: var(--sea); }
button { font: inherit; color: inherit; cursor: pointer; }

/* ---------- stage ---------- */
#stage { position: fixed; inset: 0; z-index: 0; background: #0b1822 url(img/dawn.jpg) center/cover no-repeat; }
#stage canvas { width: 100%; height: 100%; display: block; pointer-events: none; touch-action: pan-y; }
body.free #stage canvas { pointer-events: auto; touch-action: none; }
#tags { position: fixed; inset: 0; z-index: 1; pointer-events: none; overflow: hidden; }
.tag { position: absolute; left: 0; top: 0; white-space: nowrap; pointer-events: none; will-change: transform; }
.tag > b, .tag > span { position: relative; display: block; transform: translate(-50%, -100%); }
.tag > b { font: 600 13px/1.25 var(--sans); padding: 4px 10px 1px; background: rgba(8, 18, 26, .78); border-radius: 8px 8px 0 0; top: -16px; }
.tag > span { font-size: 11px; line-height: 1.3; padding: 0 10px 4px; background: rgba(8, 18, 26, .78); color: var(--ink-2); border-radius: 0 0 8px 8px; top: -16px; }
.tag > b:only-child { border-radius: 8px; padding-bottom: 4px; }
.tag::after { content: ""; position: absolute; left: -3.5px; top: -12px; width: 7px; height: 7px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 3px rgba(8, 18, 26, .5); }
.tag::before { content: ""; position: absolute; left: -.5px; top: -14px; width: 1px; height: 14px; background: rgba(244, 240, 230, .6); }
.tag-core > b { box-shadow: inset 3px 0 0 var(--core); }
.tag-general > b { box-shadow: inset 3px 0 0 var(--general); }
.tag-sea > b { box-shadow: inset 3px 0 0 var(--sea); }
.tag-shore > b { box-shadow: inset 3px 0 0 var(--shore); }
.tag-flow > b { box-shadow: inset 3px 0 0 var(--flow); }
.tag-bad > b { background: rgba(120, 18, 10, .85); }
.tag-bad > span { background: rgba(120, 18, 10, .85); }
.tag-data > b, .tag-data > span { background: rgba(0, 30, 36, .8); color: var(--data); }
.tag-warm > b { color: #ffe1a8; }

/* ---------- top bar ---------- */
.top { position: fixed; z-index: 20; top: 0; left: 0; right: 0; display: flex; align-items: center; gap: 12px; padding: 12px 20px; padding-top: max(12px, env(safe-area-inset-top));
  background: linear-gradient(rgba(5, 12, 18, .7), rgba(5, 12, 18, 0)); pointer-events: none; }
.top > * { pointer-events: auto; }
.brand { font: 600 15px/1.2 var(--serif); letter-spacing: .08em; white-space: nowrap; }
.brand small { display: block; font: 11px/1.4 var(--sans); letter-spacing: .02em; color: var(--ink-3); }
.chapters { display: flex; gap: 2px; margin: 0 auto; }
.chapters button { border: 0; background: none; padding: 6px 10px; border-radius: 99px; font-size: 13px; color: var(--ink-3); }
.chapters button.on { color: var(--ink); background: rgba(244, 240, 230, .12); }
.tools { display: flex; gap: 8px; }
.pill { border: 1px solid var(--card-line); background: rgba(9, 20, 29, .6); border-radius: 99px; padding: 6px 14px; font-size: 13px; white-space: nowrap; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.pill:hover { border-color: rgba(244, 240, 230, .4); }
.pill[aria-pressed="true"] { background: var(--ink); color: #0b1822; }

/* ---------- story ---------- */
main { position: relative; z-index: 5; }
.hero { height: 260vh; position: relative; }
.hero-in::before { content: ""; position: absolute; inset: 35% 0 0 0; background: linear-gradient(transparent, rgba(4, 10, 16, .55) 70%); pointer-events: none; }
.hero-out { position: relative; }
.nw { white-space: nowrap; }
.hero-in { position: sticky; top: 0; height: 100vh; height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; padding: 0 6vw 12vh; }
.kicker { font-size: 13px; letter-spacing: .12em; color: var(--ink-2); margin: 0 0 18px; }
.hero h1 { font: 600 clamp(36px, 6.2vw, 84px)/1.18 var(--serif); margin: 0; letter-spacing: .02em; text-shadow: 0 2px 30px rgba(0, 0, 0, .45); }
.hero .lede { max-width: 640px; color: var(--ink-2); font-size: clamp(15px, 1.4vw, 18px); margin: 22px 0 0; text-shadow: 0 1px 12px rgba(0, 0, 0, .6); }
.scroll-hint { margin-top: 34px; font-size: 13px; color: var(--ink-3); display: flex; align-items: center; gap: 10px; }
.scroll-hint i { width: 1px; height: 36px; background: linear-gradient(var(--ink), transparent); animation: drip 2.2s infinite; }
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }
.hero-out { opacity: var(--fade, 1); transition: opacity .2s; }
.hero .kicker, .hero .scroll-hint { color: var(--ink); text-shadow: 0 1px 10px rgba(0, 0, 0, .7); }

.chapter-head { min-height: 70vh; display: flex; align-items: center; padding: 0 6vw; }
.chapter-head h2 { font: 600 clamp(30px, 4.4vw, 58px)/1.2 var(--serif); margin: 0; text-shadow: 0 2px 24px rgba(0, 0, 0, .55); }
.chapter-head h2 small { display: block; font: 500 14px/1.4 var(--sans); letter-spacing: .3em; color: var(--ink-2); margin-bottom: 10px; }

.step { min-height: 125vh; display: flex; align-items: center; padding: 10vh 6vw; }
.step.right { justify-content: flex-end; }
.card { width: min(480px, 100%); background: var(--card); border: 1px solid var(--card-line); border-radius: 18px; padding: 26px 26px 22px; backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2); box-shadow: 0 20px 60px rgba(0, 0, 0, .35); }
.card.wide { width: min(620px, 100%); }
.card h3 { font: 600 24px/1.35 var(--serif); margin: 0 0 12px; }
.card p { margin: 0 0 12px; color: var(--ink-2); }
.card p strong, .card li strong { color: var(--ink); font-weight: 600; }
.card .eyebrow { font-size: 12px; letter-spacing: .18em; color: var(--ink-3); margin: 0 0 8px; }
.card ul { margin: 0 0 12px; padding: 0; list-style: none; }
.card li { position: relative; padding-left: 16px; margin: 6px 0; color: var(--ink-2); }
.card li::before { content: ""; position: absolute; left: 0; top: .72em; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.note { font-size: 12.5px; color: var(--ink-3); line-height: 1.6; }
.callout { border-left: 0; background: rgba(244, 240, 230, .07); border-radius: 12px; padding: 12px 14px; margin: 14px 0 4px; font-size: 14.5px; color: var(--ink); }
.callout b { color: var(--flow); font-weight: 600; margin-right: 6px; }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin: 14px 0; }
.stat { background: rgba(244, 240, 230, .06); border-radius: 12px; padding: 12px 14px; }
.stat b { display: block; font: 600 26px/1.15 var(--serif); }
.stat b small { font: 13px var(--sans); color: var(--ink-2); margin-left: 3px; }
.stat span { font-size: 12.5px; color: var(--ink-2); line-height: 1.45; display: block; margin-top: 4px; }

.verify { display: inline-flex; align-items: center; gap: 4px; border: 1px dashed rgba(234, 178, 74, .7); color: var(--general); background: rgba(234, 178, 74, .08); border-radius: 99px; padding: 0 8px; font-size: 11.5px; line-height: 1.7; vertical-align: 1px; white-space: nowrap; position: relative; }
.verify:focus-visible, .verify:hover { background: rgba(234, 178, 74, .2); outline: none; }
.verify[data-open]::after { content: attr(data-who); position: absolute; left: 50%; bottom: calc(100% + 6px); transform: translateX(-50%); width: max-content; max-width: 260px; white-space: normal; background: #f4f0e6; color: #14222c; font-size: 12.5px; line-height: 1.5; padding: 8px 10px; border-radius: 8px; z-index: 5; box-shadow: 0 8px 24px rgba(0, 0, 0, .3); }

/* tabs and lists of choices */
.seg { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.seg button { border: 1px solid var(--card-line); background: rgba(244, 240, 230, .05); border-radius: 99px; padding: 5px 12px; font-size: 13.5px; }
.seg button[aria-pressed="true"] { background: var(--ink); color: #0b1822; border-color: var(--ink); }
.panel { min-height: 96px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.mini { background: rgba(244, 240, 230, .06); border-radius: 12px; padding: 12px; font-size: 13.5px; color: var(--ink-2); line-height: 1.55; }
.mini b { display: block; color: var(--ink); font-size: 14.5px; margin-bottom: 4px; }
.mini .tagline { display: inline-block; font-size: 11px; padding: 0 7px; border-radius: 99px; margin-left: 6px; vertical-align: 2px; }

/* ladder */
.ladder { display: flex; flex-direction: column-reverse; gap: 8px; margin: 14px 0; }
.rung { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: center; text-align: left; border: 1px solid var(--card-line); background: rgba(244, 240, 230, .04); border-radius: 12px; padding: 10px 12px; }
.rung i { font-style: normal; width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; background: rgba(244, 240, 230, .1); font: 600 15px var(--serif); }
.rung b { display: block; font-size: 15px; }
.rung span { font-size: 13px; color: var(--ink-2); }
.rung[aria-pressed="true"] { border-color: var(--shore); background: rgba(134, 205, 114, .12); }
.rung[aria-pressed="true"] i { background: var(--shore); color: #0b1822; }
.rung:nth-child(2) { margin-left: 18px; } .rung:nth-child(3) { margin-left: 36px; }

/* products */
.prod { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 12px 0; border-top: 1px solid var(--card-line); }
.prod:first-of-type { border-top: 0; }
.prod > i { font: 600 15px/44px var(--serif); font-style: normal; text-align: center; border-radius: 12px; background: rgba(244, 240, 230, .08); }
.prod b { font-size: 15.5px; }
.prod p { margin: 2px 0 0; font-size: 13.5px; }
.phase { font-size: 11px; border-radius: 99px; padding: 1px 8px; margin-left: 6px; vertical-align: 2px; white-space: nowrap; }
.phase.now { background: rgba(76, 195, 226, .18); color: var(--sea); }
.phase.later { background: rgba(234, 178, 74, .16); color: var(--general); }

/* layers legend */
.layer-list { margin: 12px 0; }
.layer-row { display: grid; grid-template-columns: 12px 1fr auto; gap: 10px; align-items: center; padding: 9px 0; border-top: 1px solid var(--card-line); font-size: 14px; }
.layer-row:first-child { border-top: 0; }
.layer-row > i { width: 12px; height: 12px; border-radius: 4px; }
.layer-row b { display: block; font-size: 14.5px; }
.layer-row span { color: var(--ink-2); font-size: 13px; }
.bars { display: flex; gap: 2px; }
.bars u { width: 6px; height: 14px; border-radius: 2px; background: rgba(244, 240, 230, .14); text-decoration: none; }
.bars u.f { background: var(--ink); }

/* month dial */
.dial-wrap { display: grid; grid-template-columns: 210px 1fr; gap: 18px; align-items: center; margin: 10px 0 6px; }
.dial { width: 210px; height: 210px; touch-action: none; user-select: none; -webkit-user-select: none; }
.dial text { font: 600 11px var(--sans); fill: var(--ink-2); }
.dial .m-on text { fill: var(--ink); }
.dial-out b { display: block; font: 600 26px/1.2 var(--serif); }
.dial-out .chips { display: flex; flex-wrap: wrap; gap: 5px; margin: 8px 0; }
.chip { font-size: 12px; border-radius: 99px; padding: 1px 9px; background: rgba(244, 240, 230, .1); }
.chip.c-sea { background: rgba(76, 195, 226, .2); color: var(--sea); }
.chip.c-storm { background: rgba(170, 186, 198, .2); color: #c8d4dc; }
.chip.c-nest { background: rgba(239, 106, 82, .18); color: var(--core); }
.chip.c-fish { background: rgba(234, 178, 74, .18); color: var(--general); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ink-2); margin-top: 6px; }
.legend i { display: inline-block; width: 18px; height: 4px; border-radius: 2px; vertical-align: 3px; margin-right: 5px; }

/* breakers */
.breakers { display: grid; gap: 8px; margin: 12px 0; }
.brk { display: grid; grid-template-columns: 1fr 46px; gap: 12px; align-items: center; text-align: left; border: 1px solid var(--card-line); background: rgba(244, 240, 230, .04); border-radius: 12px; padding: 10px 12px; }
.brk b { display: block; font-size: 14.5px; }
.brk span { font-size: 12.5px; color: var(--ink-2); line-height: 1.45; display: block; }
.sw { width: 46px; height: 26px; border-radius: 99px; background: rgba(244, 240, 230, .18); position: relative; transition: background .2s; }
.sw::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--ink); transition: transform .2s; }
.brk[aria-pressed="true"] { border-color: rgba(239, 106, 82, .6); background: rgba(239, 106, 82, .1); }
.brk[aria-pressed="true"] .sw { background: var(--core); }
.brk[aria-pressed="true"] .sw::after { transform: translateX(20px); }
.status { font-size: 13.5px; border-radius: 10px; padding: 10px 12px; background: rgba(76, 195, 226, .1); color: var(--ink); min-height: 44px; }
.status.alert { background: rgba(239, 106, 82, .14); }

/* roles */
.roles { display: grid; gap: 8px; margin: 12px 0; }
.role { display: grid; grid-template-columns: 96px 1fr; gap: 10px; font-size: 13.5px; color: var(--ink-2); padding: 9px 0; border-top: 1px solid var(--card-line); }
.role:first-child { border-top: 0; }
.role b { color: var(--ink); font-size: 14px; }
.veto { display: inline-block; font-size: 11px; background: rgba(239, 106, 82, .2); color: var(--core); border-radius: 99px; padding: 0 7px; margin-left: 4px; }

/* cases */
.case { padding: 12px 0; border-top: 1px solid var(--card-line); }
.case:first-of-type { border-top: 0; }
.case b { font-size: 15px; }
.case .yes, .case .no, .case .ours { display: block; font-size: 13.5px; line-height: 1.55; margin-top: 3px; }
.case .yes { color: #a9e39a; } .case .no { color: #ff9c8c; }
.case .ours { color: var(--ink); background: rgba(244, 240, 230, .06); border-radius: 8px; padding: 6px 9px; margin-top: 6px; }

/* money */
.calc { margin: 12px 0; }
.calc label { display: grid; grid-template-columns: 92px 1fr 86px; gap: 10px; align-items: center; font-size: 13.5px; color: var(--ink-2); margin: 6px 0; }
.calc output { text-align: right; color: var(--ink); font-variant-numeric: tabular-nums; }
input[type=range] { width: 100%; accent-color: var(--flow); }
.split { display: flex; height: 14px; border-radius: 99px; overflow: hidden; margin: 12px 0 6px; }
.split i { display: block; height: 100%; }
.split-rows { display: grid; gap: 4px; font-size: 13.5px; }
.split-rows div { display: grid; grid-template-columns: 12px 1fr auto; gap: 8px; align-items: center; color: var(--ink-2); }
.split-rows div i { width: 10px; height: 10px; border-radius: 3px; }
.split-rows div b { color: var(--ink); font-variant-numeric: tabular-nums; font-weight: 600; }
.total { font: 600 30px/1.2 var(--serif); margin: 8px 0 0; }
.total small { font: 13px var(--sans); color: var(--ink-2); margin-left: 6px; }
.vs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.vs > div { border-radius: 12px; padding: 12px; font-size: 13px; color: var(--ink-2); }
.vs > div b { display: block; font: 600 20px/1.3 var(--serif); color: var(--ink); }
.vs .black { background: rgba(255, 90, 72, .12); }
.vs .legal { background: rgba(134, 205, 114, .12); }

/* roadmap */
.road { position: relative; margin: 14px 0; padding-left: 22px; }
.road::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--sea), var(--shore), var(--general)); border-radius: 2px; }
.road > div { position: relative; padding: 0 0 14px; }
.road > div::before { content: ""; position: absolute; left: -22px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ink); }
.road b { display: block; font-size: 15px; }
.road em { font-style: normal; color: var(--flow); font-size: 12.5px; margin-left: 6px; }
.road span { display: block; font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
details { border-top: 1px solid var(--card-line); padding: 8px 0; }
details summary { cursor: pointer; font-size: 14.5px; list-style: none; display: flex; justify-content: space-between; gap: 10px; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; color: var(--ink-3); }
details[open] summary::after { content: "−"; }
details p { font-size: 13.5px; margin: 6px 0 2px; }

/* decisions */
.decide { counter-reset: d; margin: 12px 0; }
.decide > div { counter-increment: d; display: grid; grid-template-columns: 34px 1fr; gap: 10px; padding: 9px 0; border-top: 1px solid var(--card-line); font-size: 14px; color: var(--ink-2); }
.decide > div::before { content: counter(d); font: 600 18px/30px var(--serif); text-align: center; width: 30px; height: 30px; border-radius: 50%; background: rgba(244, 240, 230, .1); color: var(--ink); }
.decide b { color: var(--ink); }

/* data chapter */
.wave { width: 100%; height: 64px; display: block; margin: 10px 0; border-radius: 10px; background: rgba(0, 30, 36, .55); }
.listen { border: 1px solid rgba(95, 227, 240, .5); color: var(--data); background: rgba(0, 40, 48, .5); border-radius: 99px; padding: 7px 16px; font-size: 14px; }
.listen[aria-pressed="true"] { background: var(--data); color: #002a30; }

/* gallery */
.gallery-step { min-height: auto; padding: 18vh 6vw; display: block; background: linear-gradient(rgba(5, 12, 18, 0), rgba(5, 12, 18, .82) 14vh, rgba(5, 12, 18, .82) calc(100% - 14vh), rgba(5, 12, 18, 0)); }
.gallery-head { max-width: 720px; margin-bottom: 22px; }
.gallery-head h3 { font: 600 clamp(26px, 3vw, 38px)/1.3 var(--serif); margin: 0 0 8px; text-shadow: 0 2px 20px rgba(0, 0, 0, .6); }
.gallery-head p { color: var(--ink-2); margin: 0; text-shadow: 0 1px 10px rgba(0, 0, 0, .7); }
.gallery { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
.gallery figure { margin: 0; position: relative; border-radius: 14px; overflow: hidden; background: #0d1d27; cursor: zoom-in; grid-column: span 2; aspect-ratio: 16 / 9; }
.gallery figure.big { grid-column: span 4; grid-row: span 2; aspect-ratio: auto; }
.gallery figure:nth-child(7):last-child { grid-column: span 6; aspect-ratio: 3 / 1; }
.gallery img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s; }
.gallery figure:hover img { transform: scale(1.03); }
.gallery figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 14px 10px; font-size: 13px; background: linear-gradient(transparent, rgba(0, 0, 0, .72)); }
.gallery figcaption b { display: block; font-size: 14.5px; }
.lightbox { position: fixed; inset: 0; z-index: 60; background: rgba(3, 8, 12, .94); display: none; align-items: center; justify-content: center; flex-direction: column; padding: 20px; }
.lightbox.on { display: flex; }
.lightbox img { max-width: 100%; max-height: 84vh; border-radius: 10px; }
.lightbox p { color: var(--ink-2); font-size: 14px; margin: 12px 0 0; text-align: center; }

/* ending */
.ending { min-height: 160vh; display: flex; align-items: flex-end; padding: 0 6vw 16vh; }
.ending .card { width: min(640px, 100%); }
.closing { font: 600 clamp(28px, 3.6vw, 46px)/1.3 var(--serif); margin: 0 0 18px; text-shadow: 0 2px 24px rgba(0, 0, 0, .6); }

footer { position: relative; z-index: 5; padding: 40px 6vw 60px; font-size: 12.5px; color: var(--ink-3); background: linear-gradient(transparent, rgba(5, 12, 18, .9) 30%); }
footer p { margin: 6px 0; max-width: 860px; }

/* free look + presentation */
.free-bar { position: fixed; z-index: 30; left: 50%; bottom: max(24px, env(safe-area-inset-bottom)); transform: translateX(-50%); display: none; gap: 10px; align-items: center; background: rgba(9, 20, 29, .82); border: 1px solid var(--card-line); border-radius: 99px; padding: 8px 8px 8px 18px; font-size: 13px; color: var(--ink-2); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
body.free .free-bar { display: flex; }
body.free main, body.free footer, body.free .top .chapters { visibility: hidden; }
.pres-bar { position: fixed; z-index: 30; right: 20px; bottom: max(20px, env(safe-area-inset-bottom)); display: none; gap: 6px; align-items: center; font-size: 13px; color: var(--ink-2); }
body.pres .pres-bar { display: flex; }
body.pres .card { font-size: 17.5px; }
body.pres .card h3 { font-size: 28px; }
body.pres .scroll-hint { display: none; }

.loading { position: fixed; z-index: 40; inset: 0; display: grid; place-items: center; background: var(--bg); transition: opacity .8s; }
.loading.done { opacity: 0; pointer-events: none; }
.loading div { text-align: center; color: var(--ink-2); font-size: 14px; }
.loading b { display: block; font: 600 22px/1.4 var(--serif); color: var(--ink); margin-bottom: 8px; letter-spacing: .1em; }
.loading .bar { width: 180px; height: 2px; background: rgba(244, 240, 230, .15); margin: 14px auto 0; border-radius: 2px; overflow: hidden; }
.loading .bar i { display: block; height: 100%; width: 30%; background: var(--ink); animation: load 1.4s ease-in-out infinite; }
@keyframes load { 0% { transform: translateX(-100%); } 100% { transform: translateX(340%); } }

.no3d #tags, .no3d .need3d { display: none !important; }

/* ---------- phones ---------- */
@media (max-width: 760px) {
  .top { padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top)); }
  .chapters { display: none; }
  .tools { margin-left: auto; }
  .tools .wide-only { display: none; }
  .hero-in { padding: 0 16px 14vh; }
  .hero h1 { font-size: min(8.2vw, 40px); }
  .chapter-head { padding: 0 16px; min-height: 60vh; }
  .step, .step.right { padding: 50vh 12px 6vh; align-items: flex-end; justify-content: center; min-height: 150vh; }
  .card { padding: 20px 18px 16px; border-radius: 16px; }
  .card h3 { font-size: 21px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat b { font-size: 22px; }
  .grid2 { grid-template-columns: 1fr; }
  .dial-wrap { grid-template-columns: 1fr; justify-items: center; }
  .dial-out { width: 100%; }
  .calc label { grid-template-columns: 74px 1fr 74px; }
  .gallery-step { padding: 14vh 16px; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 8px; }
  .gallery figure, .gallery figure.big { grid-column: span 2; grid-row: auto; aspect-ratio: 16 / 9; }
  .ending { padding: 0 12px 10vh; }
  footer { padding: 30px 16px 50px; }
  .tag > b { font-size: 12px; }
  .tag > span { font-size: 10px; }
  .pres-bar { right: 12px; }
}
@media (prefers-reduced-motion: reduce) { .scroll-hint i { animation: none; } }