:root {
  --bg: #090b0d;
  --surface: #0f1215;
  --surface-2: #15191d;
  --line: #2a2f34;
  --line-soft: #1c2125;
  --text: #f2f2f0;
  --muted: #8b9195;
  --muted-2: #5f666b;
  --gold: #d9a62e;
  --gold-bright: #f1ba39;
  --cold: #6d7f8e;
  --cold-dark: #36444e;
  --fragment: #e05945;
  --unknown: #20262b;
  --sans: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Roboto Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; color: var(--text); background: var(--bg); font-family: var(--sans); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.grain { position: fixed; inset: 0; z-index: 100; opacity: .032; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }

.site-header { position: absolute; top: 0; left: 0; right: 0; z-index: 10; height: 84px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 clamp(22px, 5vw, 78px); border-bottom: 1px solid rgba(255,255,255,.11); }
.brand { width: clamp(138px, 13vw, 198px); display: block; }
.brand img { display: block; width: 100%; height: auto; }
.header-center { display: flex; align-items: center; gap: 15px; color: var(--muted); font: 500 9px/1 var(--mono); letter-spacing: .14em; }
.header-center i { width: 4px; height: 4px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px var(--gold); }
nav { justify-self: end; display: flex; align-items: center; gap: 10px; }
.text-button, .language-toggle { border: 0; color: var(--muted); background: transparent; cursor: pointer; font: 500 10px/1 var(--mono); letter-spacing: .08em; }
.text-button { padding: 12px; }
.text-button:hover { color: var(--text); }
.language-toggle { min-width: 44px; height: 34px; border: 1px solid var(--line); color: var(--gold); }
.language-toggle:hover { border-color: var(--gold); }

.hero { position: relative; min-height: 100svh; display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(330px, .8fr); gap: clamp(50px, 8vw, 130px); align-items: center; padding: 142px clamp(24px, 7vw, 110px) 90px; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 70% 45%, rgba(217,166,46,.08), transparent 32%), linear-gradient(120deg, transparent 45%, rgba(255,255,255,.018)); pointer-events: none; }
.hero-grid { position: absolute; inset: 84px 0 0; opacity: .23; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 8.333vw 8.333vw; mask-image: linear-gradient(to right, black, transparent 82%); }
.hero-copy { position: relative; z-index: 2; max-width: 900px; }
.eyebrow, .kicker, .section-index { font: 500 10px/1.5 var(--mono); letter-spacing: .16em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 34px; color: var(--muted); }
.eyebrow > span:first-child { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 5px rgba(217,166,46,.1), 0 0 20px rgba(217,166,46,.5); }
h1 { max-width: 1000px; margin: 0; font-size: clamp(46px, 5.7vw, 96px); line-height: 1.02; letter-spacing: -.065em; font-weight: 650; }
h1 strong { display: inline-block; margin: 0 .05em; color: var(--gold); font: 400 1.12em/.8 var(--mono); letter-spacing: -.1em; text-shadow: 0 0 34px rgba(217,166,46,.16); }
.english-hook { margin: 31px 0 0; color: #b4b8b9; font: 400 clamp(15px, 1.35vw, 20px)/1.45 var(--mono); letter-spacing: -.02em; }
.hero-description { max-width: 680px; margin: 28px 0 38px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.primary-button { min-width: 210px; height: 54px; display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; padding: 0 19px; color: #111; background: var(--gold); text-decoration: none; border: 1px solid var(--gold); cursor: pointer; font: 600 11px/1 var(--mono); letter-spacing: .04em; transition: color .2s, background .2s, transform .2s, box-shadow .2s; }
.primary-button:hover { color: var(--text); background: transparent; transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--gold); }
.primary-button b { font-size: 16px; font-weight: 400; }
.button-reset { appearance: none; }

.hero-specimen { position: relative; z-index: 2; width: 100%; max-width: 470px; justify-self: end; padding: 24px; border: 1px solid #42484c; background: rgba(12,15,17,.78); box-shadow: 18px 18px 0 rgba(217,166,46,.16); backdrop-filter: blur(8px); }
.specimen-head { display: flex; justify-content: space-between; color: var(--muted-2); font: 500 8px/1 var(--mono); letter-spacing: .13em; }
.specimen-number { margin: 56px 0 44px; color: var(--text); font: 300 clamp(82px, 9vw, 142px)/.8 var(--mono); letter-spacing: -.12em; text-align: center; }
.specimen-ruler { height: 76px; display: grid; grid-template-columns: repeat(24, 1fr); align-items: end; gap: 3px; border-bottom: 1px solid var(--line); }
.specimen-ruler i { display: block; height: calc(18px + var(--tick) * 1px); background: var(--cold-dark); }
.specimen-ruler i:nth-child(6n) { background: var(--gold); }
.specimen-caption { display: flex; justify-content: space-between; margin-top: 15px; color: var(--muted); font: 500 9px/1 var(--mono); }
.specimen-caption strong { color: var(--gold); }
.specimen-cut { position: absolute; top: 0; bottom: 0; left: 68%; width: 1px; background: linear-gradient(transparent, var(--gold), transparent); opacity: .4; transform: rotate(13deg); }
.hero-foot { position: absolute; z-index: 2; left: clamp(24px, 7vw, 110px); right: clamp(24px, 7vw, 110px); bottom: 26px; display: flex; justify-content: space-between; color: var(--muted-2); font: 500 8px/1 var(--mono); letter-spacing: .12em; }
.live-dot { display: flex; align-items: center; gap: 8px; }.live-dot i { width: 5px; height: 5px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 8px var(--gold); }

.section { position: relative; padding: clamp(92px, 10vw, 160px) clamp(24px, 7vw, 110px); border-bottom: 1px solid var(--line); }
.section-intro { display: grid; grid-template-columns: .28fr 1fr .7fr; gap: clamp(30px, 5vw, 80px); align-items: start; margin-bottom: 70px; }
.section-index { margin: 5px 0 0; color: var(--muted-2); }
.kicker { margin: 0 0 18px; color: var(--gold); }
h2 { margin: 0; font-size: clamp(42px, 5.5vw, 78px); line-height: 1.04; letter-spacing: -.06em; font-weight: 580; }
.section-note { max-width: 480px; margin: 5px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.preset-row { display: flex; align-items: center; gap: 8px; margin: 0 0 22px; overflow-x: auto; scrollbar-width: none; }
.preset-row::-webkit-scrollbar { display: none; }
.preset-row > span { margin-right: 10px; color: var(--muted-2); white-space: nowrap; font: 500 9px/1 var(--mono); letter-spacing: .1em; }
.preset { min-height: 38px; padding: 0 14px; border: 1px solid var(--line); color: var(--muted); background: transparent; white-space: nowrap; cursor: pointer; font-size: 11px; }
.preset:hover, .preset.active { border-color: var(--gold); color: var(--gold); background: rgba(217,166,46,.06); }

.workspace { display: grid; grid-template-columns: minmax(370px, .84fr) minmax(480px, 1.16fr); border: 1px solid var(--line); background: var(--surface); }
.control-panel { min-width: 0; border-right: 1px solid var(--line); }
.panel-head { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.panel-head > div:first-child { display: flex; flex-direction: column; gap: 7px; }
.panel-head span { color: var(--muted-2); font: 500 8px/1 var(--mono); letter-spacing: .12em; }
.panel-head strong { font-size: 14px; font-weight: 550; }
.allocation { display: grid; grid-template-columns: auto auto; align-items: baseline; gap: 4px; text-align: right; }
.allocation span { grid-column: 1 / -1; }.allocation strong { color: var(--gold); font: 400 18px/1 var(--mono); }.allocation small { color: var(--muted-2); font: 500 8px/1 var(--mono); }
.time-control { padding: 18px 20px; border-bottom: 1px solid var(--line-soft); }
.control-line { display: grid; grid-template-columns: minmax(110px, 1fr) auto; gap: 18px; align-items: center; margin-bottom: 14px; }
.control-label { min-width: 0; display: flex; align-items: center; gap: 9px; }
.control-label i { width: 6px; height: 6px; flex: 0 0 auto; border-radius: 1px; background: var(--category-color); box-shadow: 0 0 8px color-mix(in srgb, var(--category-color) 60%, transparent); }
.control-label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.stepper { display: flex; align-items: center; border: 1px solid var(--line); }
.stepper button { width: 31px; height: 30px; border: 0; color: var(--muted); background: transparent; cursor: pointer; }
.stepper button:hover { color: var(--gold); background: rgba(255,255,255,.03); }
.stepper output { width: 78px; text-align: center; color: var(--text); font: 500 11px/1 var(--mono); }
.range-wrap { display: grid; grid-template-columns: 1fr 32px; gap: 11px; align-items: center; }
input[type="range"] { width: 100%; height: 2px; appearance: none; border: 0; outline: none; background: linear-gradient(to right, var(--category-color) 0 var(--range-pct), var(--line) var(--range-pct) 100%); }
input[type="range"]::-webkit-slider-thumb { width: 13px; height: 13px; appearance: none; border: 2px solid var(--surface); border-radius: 50%; background: var(--category-color); box-shadow: 0 0 0 1px var(--category-color); cursor: ew-resize; }
input[type="range"]::-moz-range-thumb { width: 11px; height: 11px; border: 2px solid var(--surface); border-radius: 50%; background: var(--category-color); box-shadow: 0 0 0 1px var(--category-color); cursor: ew-resize; }
.range-wrap small { color: var(--muted-2); text-align: right; font: 500 8px/1 var(--mono); }
.advanced-toggle { width: 100%; min-height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; border: 0; border-bottom: 1px solid var(--line); color: var(--muted); background: rgba(255,255,255,.012); cursor: pointer; font-size: 11px; }
.advanced-toggle:hover { color: var(--text); }.advanced-toggle b { color: var(--gold); font: 400 17px/1 var(--mono); }
.advanced-controls[hidden] { display: none; }
.remaining-strip { min-height: 64px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; color: var(--muted); background: #0c0f11; font-size: 11px; }
.remaining-strip strong { color: var(--text); font: 400 18px/1 var(--mono); }.remaining-strip small { color: var(--muted-2); font-size: 8px; }
.remaining-strip.over { color: #ff8b78; background: rgba(224,89,69,.08); }.remaining-strip.over strong { color: #ff8b78; }

.visual-panel { min-width: 0; display: flex; flex-direction: column; }
.visual-head .cell-key { color: var(--muted-2); white-space: nowrap; }
.minute-grid { display: grid; grid-template-columns: repeat(24, minmax(3px, 1fr)); gap: clamp(4px, .45vw, 8px); align-content: start; padding: clamp(28px, 4vw, 58px); background: radial-gradient(circle at 50% 50%, rgba(255,255,255,.025), transparent 60%); }
.minute-cell { aspect-ratio: 1; min-width: 0; background: var(--cell-color); opacity: var(--cell-opacity, 1); transform: scale(.9); transition: background-color .3s, opacity .3s, transform .3s; }
.minute-cell.changed { animation: cellPulse .4s ease; }
.visual-legend { display: flex; flex-wrap: wrap; gap: 14px 22px; padding: 0 clamp(28px, 4vw, 58px) 28px; }
.visual-legend span { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 10px; }
.visual-legend i { width: 7px; height: 7px; }.visual-legend b { font-weight: 450; }
.visual-legend .occupied { background: var(--cold-dark); }.visual-legend .fragmented { background: var(--fragment); }.visual-legend .owned { background: var(--gold); box-shadow: 0 0 9px rgba(217,166,46,.6); }.visual-legend .unknown { background: var(--unknown); border: 1px solid #3a4146; }
.live-metrics { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: auto; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.live-metrics > div { min-height: 88px; display: grid; grid-template-columns: auto 1fr; align-content: center; gap: 6px; padding: 15px 18px; border-right: 1px solid var(--line); }
.live-metrics > div:last-child { border-right: 0; }.live-metrics span { grid-column: 1 / -1; color: var(--muted-2); font-size: 9px; }.live-metrics strong { font: 400 24px/1 var(--mono); }.live-metrics small { align-self: end; color: var(--muted-2); font: 500 8px/1.3 var(--mono); }
.live-metrics .owned-metric strong { color: var(--gold); text-shadow: 0 0 18px rgba(217,166,46,.2); }
.overbooked-warning { margin: 0; padding: 12px 18px; color: #ff9a8a; background: rgba(224,89,69,.08); font-size: 11px; line-height: 1.5; }
.reveal-button { min-height: 72px; display: flex; align-items: center; justify-content: space-between; padding: 0 22px; border: 0; color: #111; background: var(--gold); cursor: pointer; text-align: left; }
.reveal-button span { display: flex; flex-direction: column; gap: 7px; }.reveal-button small { color: rgba(0,0,0,.55); font: 500 8px/1 var(--mono); letter-spacing: .12em; }.reveal-button b { font-size: 13px; }.reveal-button > i { font: normal 24px/1 var(--mono); transition: transform .2s; }.reveal-button:hover > i { transform: translateX(6px); }.reveal-button:disabled { cursor: not-allowed; filter: grayscale(.7); opacity: .5; }

.result { display: none; overflow: hidden; background: #080a0b; }
.result.visible { display: block; }
.result-backdrop { position: absolute; top: 90px; right: -3vw; z-index: 0; color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.04); font: 300 clamp(180px, 35vw, 560px)/.8 var(--mono); letter-spacing: -.14em; pointer-events: none; }
.result-intro, .result-hero, .result-structure, .share-area, .restart-button { position: relative; z-index: 1; }
.result-intro { display: flex; justify-content: space-between; }
.result-status { display: flex; align-items: center; gap: 9px; margin: 0; color: var(--muted); font: 500 9px/1 var(--mono); letter-spacing: .1em; }
.result-status span:first-child { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 9px var(--gold); }
.result-hero { max-width: 1000px; margin: clamp(80px, 10vw, 150px) auto clamp(110px, 12vw, 190px); text-align: center; }
.result-tag { display: inline-block; margin: 0 0 26px; padding: 8px 11px; border: 1px solid var(--gold); color: var(--gold); font: 500 9px/1 var(--mono); letter-spacing: .12em; }
.result-hero h2 { font-size: clamp(36px, 5vw, 72px); color: #c2c5c5; }
.result-number { margin: 26px 0 8px; display: flex; align-items: baseline; justify-content: center; gap: 16px; }
.result-number strong { color: var(--gold); font: 300 clamp(110px, 21vw, 300px)/.82 var(--mono); letter-spacing: -.13em; text-shadow: 0 0 60px rgba(217,166,46,.13); }
.result-number span { color: var(--muted); font-size: 14px; }
.result-percent { margin: 0; color: var(--muted); font-size: 13px; }.result-percent strong { margin-left: 6px; color: var(--text); font: 400 18px/1 var(--mono); }
.result-insight { max-width: 650px; margin: 38px auto 0; color: #a4aaac; font-size: 17px; line-height: 1.9; }
.result-structure { display: grid; grid-template-columns: .72fr 1.28fr; gap: clamp(60px, 9vw, 150px); padding: clamp(70px, 8vw, 120px) 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.structure-copy h3, .share-copy h3 { margin: 0; font-size: clamp(36px, 4vw, 60px); line-height: 1.08; letter-spacing: -.05em; font-weight: 560; }
.structure-copy > p:last-child { max-width: 440px; margin: 28px 0 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.stacked-bar { height: 54px; display: flex; gap: 2px; margin-bottom: 34px; overflow: hidden; background: var(--unknown); }
.stacked-bar span { display: block; min-width: 0; transition: flex-basis .7s cubic-bezier(.2,.8,.2,1); }
.structure-list { border-top: 1px solid var(--line); }
.structure-row { display: grid; grid-template-columns: 12px 1fr auto auto; gap: 15px; align-items: center; min-height: 62px; border-bottom: 1px solid var(--line-soft); }
.structure-row i { width: 8px; height: 8px; background: var(--row-color); }.structure-row span { color: var(--muted); font-size: 12px; }.structure-row strong { font: 400 15px/1 var(--mono); }.structure-row small { width: 58px; color: var(--muted-2); text-align: right; font: 500 9px/1 var(--mono); }

.share-area { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(60px, 10vw, 160px); align-items: center; padding: clamp(100px, 12vw, 180px) 0; }
.share-copy > p:nth-of-type(2) { max-width: 400px; margin: 24px 0 34px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.share-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.secondary-button { min-height: 48px; padding: 0 18px; border: 1px solid var(--line); color: var(--text); background: transparent; cursor: pointer; font: 500 10px/1 var(--mono); }
.secondary-button:hover { border-color: var(--gold); color: var(--gold); }
.share-feedback { min-height: 20px; margin: 16px 0 0; color: var(--gold); font: 500 9px/1.5 var(--mono); }
.share-card { width: min(100%, 510px); aspect-ratio: 4 / 5; justify-self: end; display: flex; flex-direction: column; padding: clamp(25px, 3vw, 42px); border: 1px solid #444b4f; color: var(--text); background: radial-gradient(circle at 78% 18%, rgba(217,166,46,.15), transparent 30%), linear-gradient(145deg, #161a1d, #090b0d 62%); box-shadow: 16px 16px 0 rgba(217,166,46,.14); }
.card-head { display: flex; align-items: center; color: var(--muted); font: 500 8px/1 var(--mono); letter-spacing: .1em; }.card-head img { width: 28px; height: 28px; margin-right: 9px; }.card-head b { margin-left: auto; color: var(--muted-2); font-weight: 500; }
.share-card > p:nth-of-type(1) { align-self: flex-start; margin: 19% 0 9%; padding: 7px 9px; border: 1px solid var(--gold); color: var(--gold); font: 500 8px/1 var(--mono); letter-spacing: .12em; }
.share-card > strong { color: var(--gold); font: 300 clamp(84px, 11vw, 150px)/.75 var(--mono); letter-spacing: -.12em; }.card-unit { margin: 15px 0 0; color: #b7bbba; font-size: 13px; }
.card-line { height: 1px; margin: auto 0 22px; background: linear-gradient(to right, var(--gold) 0 18%, var(--line) 18%); }.card-caption { max-width: 380px; margin: 0; color: #a1a6a7; font-size: 13px; line-height: 1.8; }
.card-foot { display: flex; justify-content: space-between; margin-top: 24px; color: var(--muted-2); font: 500 8px/1 var(--mono); letter-spacing: .08em; }.card-foot span:last-child { color: var(--gold); }
.restart-button { display: flex; align-items: center; gap: 12px; margin: 0 auto; padding: 14px 18px; border: 0; color: var(--muted); background: transparent; cursor: pointer; font-size: 11px; }.restart-button span:first-child { color: var(--gold); font-size: 18px; }.restart-button:hover { color: var(--text); }

.method { background: #0d1012; }
.method-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: clamp(60px, 9vw, 150px); }
blockquote { margin: 0; padding-left: 30px; border-left: 3px solid var(--gold); color: #d4d6d5; font-size: clamp(25px, 3vw, 42px); line-height: 1.45; letter-spacing: -.03em; }
.method-points { border-top: 1px solid var(--line); }
.method-points article { display: grid; grid-template-columns: 40px 180px 1fr; gap: 20px; padding: 27px 0; border-bottom: 1px solid var(--line); }
.method-points article > span { color: var(--gold); font: 500 9px/1.6 var(--mono); }.method-points h3 { margin: 0; font-size: 14px; font-weight: 550; }.method-points p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.8; }
.method-disclaimer { max-width: 720px; margin: 60px 0 0 auto; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted-2); font: 500 9px/1.8 var(--mono); }

footer { min-height: 130px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 20px; padding: 30px clamp(24px, 5vw, 78px); background: #060708; }
footer > a:first-child { width: 150px; }footer img { width: 100%; display: block; }footer p { margin: 0; color: var(--muted-2); font: 500 8px/1 var(--mono); letter-spacing: .12em; }footer > a:last-child { justify-self: end; color: var(--gold); text-decoration: none; font: 500 9px/1 var(--mono); }
.method-dialog { width: min(92vw, 640px); padding: 50px; border: 1px solid #4a5054; color: var(--text); background: #111518; box-shadow: 0 30px 100px rgba(0,0,0,.7); }.method-dialog::backdrop { background: rgba(0,0,0,.78); backdrop-filter: blur(5px); }.method-dialog h2 { margin: 30px 0; font-size: 40px; }.method-dialog > p:not(.section-index) { color: var(--muted); font-size: 13px; line-height: 1.9; }.dialog-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border: 1px solid var(--line); color: var(--muted); background: transparent; cursor: pointer; font: 300 21px/1 var(--mono); }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }.reveal.in-view { opacity: 1; transform: none; }
@keyframes cellPulse { 50% { transform: scale(.55); opacity: .3; } }

@media (max-width: 1050px) {
  .hero { grid-template-columns: 1fr; padding-bottom: 120px; }.hero-specimen { max-width: 640px; justify-self: start; }.specimen-number { font-size: 120px; }
  .workspace { grid-template-columns: 1fr; }.control-panel { border-right: 0; border-bottom: 1px solid var(--line); }.minute-grid { padding-inline: 8vw; }
  .section-intro { grid-template-columns: .2fr 1fr; }.section-note { grid-column: 2; }
  .result-structure, .share-area, .method-grid { grid-template-columns: 1fr; }.share-card { justify-self: start; }.method-points article { grid-template-columns: 40px 170px 1fr; }
}

@media (max-width: 650px) {
  .site-header { height: 68px; grid-template-columns: 1fr auto; padding: 0 18px; }.brand { width: 132px; }.header-center { display: none; }.text-button { display: none; }
  .hero { min-height: auto; padding: 116px 18px 100px; gap: 54px; }.hero-grid { top: 68px; background-size: 54px 54px; }
  .eyebrow { margin-bottom: 24px; font-size: 8px; }.hero h1 { font-size: clamp(42px, 12.6vw, 60px); line-height: 1.06; }.hero h1 strong { margin-left: 0; }.english-hook { font-size: 13px; }.hero-description { font-size: 13px; line-height: 1.8; }
  .hero-specimen { padding: 18px; box-shadow: 8px 8px 0 rgba(217,166,46,.16); }.specimen-number { margin: 45px 0 34px; font-size: 82px; }.hero-foot { left: 18px; right: 18px; }.hero-foot > span:first-child { display: none; }
  .section { padding: 78px 16px; }.section-intro { grid-template-columns: 1fr; gap: 20px; margin-bottom: 46px; }.section-note { grid-column: 1; }.section h2 { font-size: 43px; }
  .preset-row { margin-left: 2px; }.preset-row > span { display: none; }
  .workspace { margin: 0; }.panel-head { min-height: 68px; padding: 14px; }.time-control { padding: 16px 14px; }.control-line { grid-template-columns: minmax(90px, 1fr) auto; }.stepper output { width: 68px; }.advanced-toggle, .remaining-strip { padding-inline: 14px; }
  .visual-head .cell-key { display: none; }.minute-grid { grid-template-columns: repeat(12, 1fr); gap: 6px; padding: 28px 18px; }.visual-legend { padding: 0 18px 24px; gap: 12px; }.live-metrics > div { min-height: 78px; padding: 12px 10px; }.live-metrics strong { font-size: 19px; }.reveal-button { min-height: 68px; }
  .result-intro { display: block; }.result-status { margin-top: 20px; }.result-hero { margin: 70px 0 110px; }.result-number { gap: 10px; }.result-number strong { font-size: clamp(92px, 31vw, 130px); }.result-insight { font-size: 15px; }
  .result-structure { gap: 55px; padding: 70px 0; }.structure-row { grid-template-columns: 10px 1fr auto; }.structure-row small { display: none; }
  .share-area { gap: 56px; padding: 85px 0; }.share-actions { flex-direction: column; }.share-actions > * { width: 100%; }.share-card { padding: 26px; box-shadow: 8px 8px 0 rgba(217,166,46,.14); }.share-card > strong { font-size: 84px; }
  .method-grid { gap: 55px; }blockquote { padding-left: 20px; font-size: 26px; }.method-points article { grid-template-columns: 34px 1fr; gap: 10px; }.method-points p { grid-column: 2; }.method-disclaimer { margin-top: 45px; }
  footer { grid-template-columns: 1fr; text-align: center; }footer > a:first-child, footer > a:last-child { justify-self: center; }
  .method-dialog { padding: 42px 24px 28px; }.method-dialog h2 { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* 2026 visual refresh — restrained product-page typography and spacing */
:root {
  --bg: #000;
  --surface: #111113;
  --surface-2: #1c1c1e;
  --line: rgba(255,255,255,.12);
  --line-soft: rgba(255,255,255,.07);
  --text: #f5f5f7;
  --muted: #a1a1a6;
  --muted-2: #6e6e73;
  --font-ui: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --sans: var(--font-ui);
  --mono: var(--font-ui);
}

body { background: #000; font-family: var(--font-ui); font-weight: 400; }
.grain, .hero-grid { display: none; }
.site-header { position: fixed; height: 54px; padding: 0 max(24px, calc((100vw - 1320px)/2)); border-bottom-color: rgba(255,255,255,.08); background: rgba(0,0,0,.72); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); }
.brand { width: 126px; }
.header-center { color: #77777c; font-size: 11px; font-weight: 400; letter-spacing: 0; }
.header-center i { width: 3px; height: 3px; box-shadow: none; }
.text-button, .language-toggle { font-size: 12px; font-weight: 400; letter-spacing: 0; }
.language-toggle { min-width: 42px; height: 30px; padding: 0 12px; border: 0; border-radius: 999px; color: #111; background: var(--gold); font-weight: 600; }

.hero { min-height: 100svh; grid-template-columns: 1fr; justify-items: center; align-content: center; gap: clamp(54px,7vw,96px); padding: 140px max(24px,calc((100vw - 1320px)/2)) 100px; border: 0; text-align: center; }
.hero::before { inset: -28vw 12vw auto; height: 58vw; border-radius: 50%; background: radial-gradient(circle, rgba(217,166,46,.17), rgba(217,166,46,.035) 36%, transparent 68%); filter: blur(28px); }
.hero-copy { width: min(1180px,100%); max-width: none; }
.eyebrow, .kicker, .section-index { font-size: 13px; line-height: 1.3; font-weight: 500; letter-spacing: 0; text-transform: none; }
.eyebrow { display: inline-flex; margin-bottom: 30px; color: var(--gold-bright); }
.eyebrow > span:first-child { width: 6px; height: 6px; box-shadow: 0 0 18px rgba(217,166,46,.65); }
h1 { max-width: 1180px; margin-inline: auto; font-size: clamp(60px,7vw,104px); line-height: .98; letter-spacing: -.055em; font-weight: 600; text-wrap: balance; }
h1 strong { margin: 0; color: transparent; background: linear-gradient(110deg,#f8de8f,#d9a62e 54%,#f3c65a); background-clip: text; -webkit-background-clip: text; font: inherit; white-space: nowrap; text-shadow: none; }
.english-hook { margin-top: 30px; color: #d2d2d7; font-size: clamp(18px,1.5vw,22px); line-height: 1.35; font-weight: 500; letter-spacing: -.015em; text-wrap: balance; }
.hero-description { max-width: 760px; margin: 20px auto 34px; color: var(--muted); font-size: 17px; line-height: 1.55; text-wrap: balance; }
.primary-button { min-width: 154px; height: 46px; justify-content: center; gap: 16px; padding: 0 22px; border: 0; border-radius: 999px; font-size: 14px; font-weight: 600; letter-spacing: 0; }
.primary-button:hover { color: #111; background: var(--gold); transform: scale(1.025); box-shadow: none; filter: brightness(1.08); }
.hero-specimen { width: min(820px,100%); max-width: none; justify-self: center; padding: clamp(26px,4vw,52px); border-color: rgba(255,255,255,.12); border-radius: 34px; background: linear-gradient(145deg,rgba(40,40,42,.86),rgba(14,14,16,.92)); box-shadow: 0 40px 100px rgba(0,0,0,.55), inset 0 1px rgba(255,255,255,.07); }
.specimen-head, .specimen-caption, .hero-foot { font-size: 11px; font-weight: 400; letter-spacing: 0; }
.specimen-number { margin: 38px 0 42px; font-size: clamp(102px,13vw,188px); line-height: .86; letter-spacing: -.075em; font-weight: 600; }
.specimen-ruler { height: 92px; gap: 5px; }
.specimen-ruler i { border-radius: 3px 3px 0 0; }
.specimen-cut { display: none; }
.hero-foot { position: relative; left: auto; right: auto; bottom: auto; width: min(1180px,100%); }

.section { padding: clamp(110px,11vw,180px) max(24px,calc((100vw - 1280px)/2)); border: 0; }
.lab, .method { color: #1d1d1f; background: #f5f5f7; }
.section-intro { grid-template-columns: 90px minmax(0,1fr) minmax(260px,390px); gap: clamp(24px,4vw,64px); margin-bottom: 68px; }
.section-index { color: #86868b; }
.kicker { margin-bottom: 14px; color: #a97909; font-weight: 600; }
h2 { font-size: clamp(48px,5.2vw,76px); line-height: 1.02; letter-spacing: -.045em; font-weight: 600; text-wrap: balance; }
.section-note { color: #6e6e73; font-size: 15px; line-height: 1.55; font-weight: 400; }
.preset-row > span { color: #86868b; font: 400 12px/1 var(--font-ui); letter-spacing: 0; }
.preset { min-height: 38px; padding: 0 16px; border: 0; border-radius: 999px; color: #515154; background: #e5e5e7; font-size: 13px; font-weight: 500; }
.preset:hover, .preset.active { color: #fff; background: #1d1d1f; }

.workspace { overflow: hidden; border: 0; border-radius: 32px; background: var(--surface); box-shadow: 0 28px 80px rgba(0,0,0,.17); }
.panel-head { padding-inline: 24px; }
.panel-head span, .visual-head .cell-key { font: 400 11px/1 var(--font-ui); letter-spacing: 0; }
.panel-head strong { font-size: 15px; font-weight: 600; }
.allocation strong { font: 600 19px/1 var(--font-ui); font-variant-numeric: tabular-nums; }
.allocation small { font: 400 10px/1 var(--font-ui); }
.time-control { padding: 17px 24px; }
.control-label i { border-radius: 50%; }
.control-label span { font-size: 13px; font-weight: 400; }
.stepper { padding: 3px; border: 0; border-radius: 999px; background: var(--surface-2); }
.stepper button { width: 28px; height: 28px; border-radius: 50%; }
.stepper output { width: 72px; font: 500 12px/1 var(--font-ui); font-variant-numeric: tabular-nums; }
.range-wrap small { font: 400 10px/1 var(--font-ui); }
input[type="range"] { height: 3px; border-radius: 99px; }
input[type="range"]::-webkit-slider-thumb { width: 17px; height: 17px; border: 4px solid #fff; box-shadow: 0 2px 9px rgba(0,0,0,.6); }
.advanced-toggle, .remaining-strip { padding-inline: 24px; font-size: 13px; font-weight: 400; }
.remaining-strip strong { font: 600 18px/1 var(--font-ui); }
.remaining-strip small { font: 400 9px/1 var(--font-ui); }
.minute-cell { border-radius: 2px; }
.visual-legend span { font-size: 11px; }
.visual-legend i { border-radius: 50%; }
.live-metrics span { font-size: 11px; }
.live-metrics strong { font: 600 25px/1 var(--font-ui); font-variant-numeric: tabular-nums; }
.live-metrics small { font: 400 9px/1 var(--font-ui); }
.reveal-button { min-height: 68px; padding-inline: 24px; }
.reveal-button small { font: 500 10px/1 var(--font-ui); letter-spacing: 0; }
.reveal-button b { font-size: 14px; }

.result { background: #000; }
.result-backdrop { color: rgba(255,255,255,.018); -webkit-text-stroke: 0; font-family: var(--font-ui); font-weight: 600; }
.result-status { font: 400 12px/1 var(--font-ui); letter-spacing: 0; }
.result-tag { border: 0; padding: 0; color: var(--gold-bright); font: 600 15px/1 var(--font-ui); letter-spacing: 0; }
.result-hero h2 { max-width: 1000px; margin-inline: auto; color: #d2d2d7; font-size: clamp(50px,5.8vw,84px); }
.result-number strong { color: transparent; background: linear-gradient(120deg,#ffe6a2,#d9a62e 54%,#f3c65a); background-clip: text; -webkit-background-clip: text; font: 600 clamp(150px,23vw,330px)/.82 var(--font-ui); letter-spacing: -.08em; text-shadow: none; }
.result-number span, .result-percent, .result-insight { font-family: var(--font-ui); }
.result-insight { max-width: 680px; color: var(--muted); font-size: 17px; line-height: 1.6; text-wrap: balance; }
.structure-copy h3, .share-copy h3 { font-size: clamp(48px,5vw,72px); font-weight: 600; text-wrap: balance; }
.structure-copy > p:last-child, .share-copy > p:nth-of-type(2) { font-size: 15px; line-height: 1.55; }
.stacked-bar { border-radius: 15px; }
.structure-row i { border-radius: 50%; }
.structure-row span { font-size: 13px; }
.structure-row strong { font: 600 14px/1 var(--font-ui); }
.structure-row small { font: 400 11px/1 var(--font-ui); }
.secondary-button { min-height: 46px; padding: 0 20px; border-radius: 999px; font: 500 13px/1 var(--font-ui); }
.share-feedback { font: 400 12px/1.5 var(--font-ui); }
.share-card { border: 0; border-radius: 34px; background: radial-gradient(circle at 78% 12%,rgba(217,166,46,.2),transparent 34%),linear-gradient(145deg,#232326,#080809 62%); box-shadow: 0 45px 100px rgba(0,0,0,.5),inset 0 1px rgba(255,255,255,.09); }
.card-head { font: 500 10px/1 var(--font-ui); letter-spacing: 0; }
.share-card > p:nth-of-type(1) { border: 0; padding: 0; color: var(--gold-bright); font: 600 13px/1 var(--font-ui); letter-spacing: 0; }
.share-card > strong { color: var(--text); font: 600 clamp(100px,11vw,150px)/.78 var(--font-ui); letter-spacing: -.08em; }
.card-unit, .card-caption { font-family: var(--font-ui); }
.card-line { background: rgba(255,255,255,.15); }
.card-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-top: 22px; }
.card-foot canvas { width: 82px; height: 82px; flex: 0 0 auto; border-radius: 8px; }
.card-foot > div { min-width: 0; margin-left: auto; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.card-foot span { color: var(--muted); font-size: 11px; }
.card-foot strong { color: var(--gold-bright); font-size: 24px; line-height: 1; font-weight: 600; }
.restart-button { border-radius: 999px; font-size: 13px; }

.method .section-note, .method-disclaimer, .method-points p { color: #6e6e73; }
blockquote { padding: 0; border: 0; color: #1d1d1f; font-size: clamp(32px,3.2vw,48px); line-height: 1.2; font-weight: 600; text-wrap: balance; }
blockquote::before { content: "“"; display: block; margin-bottom: 10px; color: var(--gold); font-size: 72px; line-height: .5; }
.method-points { border-top-color: rgba(0,0,0,.14); }
.method-points article { border-bottom-color: rgba(0,0,0,.12); }
.method-points article > span { color: #a97909; font: 600 12px/1.6 var(--font-ui); }
.method-points h3 { font-size: 14px; font-weight: 600; }
.method-points p { font-size: 13px; line-height: 1.55; }
.method-disclaimer { border-top-color: rgba(0,0,0,.12); font: 400 12px/1.55 var(--font-ui); }
.method-dialog { border-radius: 28px; background: rgba(28,28,30,.96); }
.dialog-close { border: 0; border-radius: 50%; background: #2c2c2e; }
footer p, footer > a:last-child { font-family: var(--font-ui); letter-spacing: 0; }

@media (max-width: 1050px) {
  .section-intro { grid-template-columns: 64px 1fr; }
  .section-note { grid-column: 2; }
}

@media (max-width: 650px) {
  .site-header { height: 50px; padding: 0 16px; }
  .brand { width: 118px; }
  .language-toggle { min-width: 38px; height: 28px; padding: 0 10px; font-size: 11px; }
  .hero { gap: 48px; padding: 108px 18px 74px; }
  .hero::before { inset: -10vw -15vw auto; height: 110vw; }
  .eyebrow { margin-bottom: 22px; font-size: 12px; }
  .hero h1 { font-size: clamp(43px,12.4vw,56px); line-height: 1.02; }
  .english-hook { margin-top: 24px; font-size: 16px; }
  .hero-description { margin: 17px auto 28px; font-size: 14px; line-height: 1.5; }
  .hero-specimen { padding: 24px 18px; border-radius: 24px; }
  .specimen-number { margin: 30px 0; font-size: 88px; }
  .specimen-ruler { height: 68px; gap: 3px; }
  .section { padding: 86px 16px; }
  .section-intro { grid-template-columns: 1fr; gap: 14px; margin-bottom: 42px; }
  .section-note { grid-column: 1; margin-top: 2px; font-size: 14px; }
  .section h2 { font-size: clamp(40px,11vw,50px); }
  .workspace { border-radius: 24px; }
  .time-control { padding: 15px; }
  .advanced-toggle, .remaining-strip { padding-inline: 15px; }
  .result-hero h2 { font-size: 42px; }
  .result-number strong { font-size: clamp(112px,34vw,145px); }
  .structure-copy h3, .share-copy h3 { font-size: 43px; }
  .share-card { border-radius: 26px; }
  .share-card > strong { font-size: 92px; }
  .card-foot canvas { width: 76px; height: 76px; }
}