:root {
  --paper: #f3eee2;
  --paper-light: #fbf7ee;
  --paper-warm: #e9deca;
  --paper-deep: #ded0b8;
  --ink: #17202b;
  --muted: #5d625f;
  --faint: #888276;
  --navy: #10243e;
  --navy-soft: #1d3654;
  --clay: #ad5038;
  --clay-light: #d27a5e;
  --blue: #255cb5;
  --green: #2f765b;
  --line: rgba(23, 32, 43, 0.18);
  --line-strong: rgba(23, 32, 43, 0.52);
  --serif: "Songti SC", "STSong", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --body: "Avenir Next", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --ru: Georgia, "Times New Roman", serif;
  --mono: "SFMono-Regular", Menlo, Consolas, monospace;
  --max: 1600px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

body {
  container-type: inline-size;
  margin: 0;
  min-width: 0;
  overflow-x: clip;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(0deg, rgba(23, 32, 43, 0.018) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(23, 32, 43, 0.012) 0 1px, transparent 1px 5px);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.72;
}

button, input { font: inherit; }
button { color: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; }
p, h1, h2, h3, h4, blockquote, ol, ul { margin-top: 0; }
[hidden] { display: none !important; }

.reading-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: 3px;
  background: rgba(16, 36, 62, 0.1);
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--clay);
  transform-origin: left;
}

.site-header {
  position: sticky;
  top: 3px;
  z-index: 30;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  min-height: 76px;
  padding: 10px max(24px, calc((100vw - var(--max)) / 2));
  background: rgba(243, 238, 226, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.site-brand {
  display: flex;
  gap: 11px;
  align-items: center;
  min-height: 48px;
  text-decoration: none;
}

.site-brand img { width: 44px; height: 44px; border-radius: 12px; }
.site-brand span { line-height: 1.05; }
.site-brand strong { display: block; font-family: var(--serif); font-size: 16px; }
.site-brand small { display: block; margin-top: 6px; color: var(--clay); font: 8px/1 var(--mono); letter-spacing: .12em; }

.site-nav {
  display: flex;
  justify-content: center;
  min-width: 0;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 11px;
  color: #535a5b;
  font-size: 12px;
  text-decoration: none;
  outline: 3px solid transparent;
  outline-offset: 3px;
}

.site-nav a:hover, .site-nav a.is-active { color: var(--clay); }
.site-nav a.is-active { text-decoration: underline; text-underline-offset: 7px; }

.header-status {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--green);
  font-size: 12px;
  white-space: nowrap;
}

.header-status i { width: 8px; height: 8px; background: currentColor; border-radius: 50%; }

.story-section {
  position: relative;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: clamp(68px, 6vw, 92px) clamp(24px, 4vw, 64px) clamp(76px, 7vw, 108px);
  border-bottom: 1px solid var(--line);
}

.story-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.problem-section::before, .language-section::before,
.daily-section::before, .records-section::before { background: none; }

.section-index {
  display: grid;
  grid-template-columns: auto clamp(36px, 4vw, 64px) auto;
  gap: 13px;
  align-items: center;
  width: fit-content;
  margin-bottom: clamp(32px, 3.5vw, 52px);
}

.section-index span {
  grid-column: 1;
  color: var(--clay);
  font: italic 600 27px/1 var(--serif);
  letter-spacing: -.04em;
}

.section-index::after {
  content: "";
  grid-column: 2;
  grid-row: 1;
  width: 100%;
  height: 1px;
  background: color-mix(in srgb, var(--clay) 58%, transparent);
}

.section-index b {
  grid-column: 3;
  color: var(--faint);
  font: 600 13px/1.2 var(--body);
  letter-spacing: .04em;
}
.eyebrow { margin: 0 0 18px; color: var(--clay); font: 700 11px/1.4 var(--mono); letter-spacing: .16em; }

.editorial-heading { max-width: 980px; margin-bottom: clamp(40px, 4vw, 64px); }
.editorial-heading h2 { margin: 0 0 20px; font: 650 clamp(37px, 4.2vw, 58px)/1.2 var(--serif); letter-spacing: -.035em; }
.editorial-heading > p:last-child { max-width: 760px; margin-bottom: 0; color: var(--muted); font-size: 18px; }

.reveal { opacity: 0; transform: translateY(15px); transition: opacity 580ms ease, transform 580ms ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* Hero */
.hero-section { padding-top: 36px; }
.hero-layout { display: grid; grid-template-columns: minmax(0,.92fr) minmax(430px,1.08fr); gap: clamp(52px,7vw,104px); align-items: center; }
.hero-copy h1 { margin: 0 0 26px; font: 680 clamp(48px,4.4vw,64px)/1.12 var(--serif); letter-spacing: -.05em; }
.hero-copy h1 span { color: var(--clay); }
.hero-deck { max-width: 650px; margin-bottom: 32px; color: #444b4b; font-size: 20px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 0 0 28px; }
.hero-actions a {
  display: inline-flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  min-width: 192px;
  min-height: 54px;
  padding: 12px 18px;
  font-weight: 700;
  text-decoration: none;
  outline: 3px solid transparent;
  outline-offset: 3px;
}
.primary-action { color: #fff8ec; background: var(--clay); border-radius: 14px; }
.primary-action:hover { background: #91412e; }
.secondary-action { color: var(--navy); border-bottom: 1px solid var(--navy); }
.availability-line { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 0 0 24px; font-size: 14px; }
.availability-line b { color: var(--green); }
.availability-line span { color: var(--muted); }
.app-name-note { max-width: 670px; margin: 0; padding-left: 16px; color: var(--muted); border-left: 2px solid var(--blue); font-size: 14px; }
.app-name-note code { color: var(--navy); font: 700 .92em/1.5 var(--mono); }

.product-scene {
  position: relative;
  min-height: 500px;
  overflow: hidden;
  background:
    radial-gradient(90% 80% at 15% 0%, rgba(255,255,255,.65), transparent 56%),
    linear-gradient(155deg, #c8d0d2, #9aa9af 50%, #71828b);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  box-shadow: 0 30px 70px rgba(23,32,43,.17);
}
.scene-menubar { display: flex; justify-content: space-between; height: 38px; padding: 9px 15px; color: #495052; background: rgba(249,247,240,.9); border-bottom: 1px solid rgba(23,32,43,.1); font-size: 11px; }
.scene-window { position: absolute; inset: 88px 140px 120px 34px; padding: 66px 28px 24px; background: rgba(248,246,238,.9); border-radius: 10px; box-shadow: 0 16px 38px rgba(23,32,43,.22); }
.scene-window::before { content: "工作窗口"; position: absolute; inset: 0 0 auto; height: 38px; padding: 9px 14px; color: #7b8080; background: rgba(222,220,213,.95); font-size: 10px; }
.scene-window i { display: block; width: 90%; height: 9px; margin-bottom: 16px; background: rgba(23,32,43,.12); border-radius: 99px; }
.scene-window i:nth-child(2) { width: 72%; }
.scene-window i:nth-child(4) { width: 82%; }

.corner-card { position: absolute; z-index: 2; right: 22px; top: 132px; width: min(430px, calc(100% - 58px)); overflow: hidden; color: #f6ede1; background: #232525; border: 1px solid rgba(255,255,255,.13); border-radius: 15px; box-shadow: 0 26px 52px rgba(0,0,0,.42); }
.corner-card header, .corner-card footer { display: flex; gap: 13px; align-items: center; min-height: 50px; padding: 9px 17px; border-color: rgba(255,255,255,.1); }
.corner-card header { border-bottom: 1px solid rgba(255,255,255,.1); }
.corner-card header strong { font: 700 10px/1 var(--mono); letter-spacing: .14em; }
.corner-card header span { color: #aaa399; font-size: 11px; }
.corner-card header b { margin-left: auto; color: #aaa399; font-size: 11px; }
.corner-body { padding: 22px 19px 26px; }
.corner-body small { color: var(--clay-light); }
.corner-body p { margin: 11px 0 18px; color: #c2bbb0; font-size: 16px; }
.corner-body blockquote { margin: 0; font: 600 27px/1.48 var(--serif); }
.corner-card footer { border-top: 1px solid rgba(255,255,255,.1); color: #bbb3a8; font-size: 12px; }
.corner-card footer b { margin-left: auto; padding: 8px 13px; color: #241d18; background: var(--clay-light); border-radius: 999px; }
.scene-caption { position: absolute; inset: auto 26px 24px 34px; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 14px; align-items: center; padding-top: 16px; color: #edf0ec; border-top: 1px solid rgba(255,255,255,.35); font-size: 12px; }
.scene-caption span { color: rgba(255,255,255,.75); }

.hero-principles { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 42px; border-block: 1px solid var(--line-strong); }
.hero-principles span { padding: 18px 20px; font-size: 14px; }
.hero-principles span + span { border-left: 1px solid var(--line); }
.hero-principles b { margin-right: 12px; color: var(--clay); font: 11px/1 var(--mono); }

/* Problem */
.problem-ledger { border-top: 2px solid var(--ink); }
.problem-row { display: grid; grid-template-columns: 52px minmax(190px,.8fr) minmax(260px,1.25fr) minmax(150px,.6fr); gap: 26px; align-items: start; padding: 27px 8px; border-bottom: 1px solid var(--line); }
.problem-row > b { color: var(--clay); font: 12px/1.7 var(--mono); }
.problem-row h3 { margin: 0; font: 650 23px/1.35 var(--serif); }
.problem-row p { margin: 0; color: var(--muted); font-size: 16px; }
.problem-row em { color: var(--blue); font: normal 11px/1.6 var(--mono); letter-spacing: .06em; }
.thought-line { display: grid; grid-template-columns: 1fr auto 1fr; gap: 32px; align-items: center; margin-top: 54px; padding-top: 26px; border-top: 1px solid var(--line-strong); }
.thought-line small { color: var(--clay); font: 10px/1 var(--mono); letter-spacing: .12em; }
.thought-line p { margin: 10px 0 0; font: 600 24px/1.55 var(--serif); }
.thought-line > span { color: var(--clay); font-size: 34px; }

/* Interactive practice */
.practice-shell { overflow: hidden; color: #f4eadc; background: #232525; border: 1px solid #111; border-radius: 16px; box-shadow: 20px 24px 0 var(--paper-deep); }
.practice-topline { display: flex; gap: 18px; align-items: center; min-height: 58px; padding: 10px 22px; border-bottom: 1px solid rgba(255,255,255,.1); }
.practice-topline strong { font: 700 11px/1 var(--mono); letter-spacing: .14em; }
.practice-topline span { color: #aaa399; font-size: 13px; }
.practice-topline b { margin-left: auto; color: var(--clay-light); font: 12px/1 var(--mono); }
.practice-intent { padding: 34px 28px 20px; }
.practice-intent small { color: var(--clay-light); font: 10px/1 var(--mono); letter-spacing: .12em; }
.practice-intent p { margin: 13px 0 11px; font: 650 clamp(27px,3.4vw,44px)/1.4 var(--serif); }
.practice-copy { color: #aba49a; font-size: 16px; }
.practice-actions { display: flex; justify-content: flex-end; padding: 0 28px 28px; }
.practice-actions button { min-width: 144px; min-height: 50px; padding: 10px 18px; color: #241d18; background: var(--clay-light); border: 0; border-radius: 999px; cursor: pointer; font-weight: 800; }
.practice-answer { border-top: 1px solid rgba(255,255,255,.1); }
.practice-language-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
.language-answer { min-width: 0; padding: 30px 28px 25px; }
.language-answer + .language-answer { border-left: 1px solid rgba(255,255,255,.12); }
.language-answer small { color: #9da6aa; font: 10px/1 var(--mono); letter-spacing: .12em; }
.language-answer em { display: block; margin-top: 10px; color: #aba49a; font-size: 13px; font-style: normal; }
.target-sentence { min-height: 118px; margin: 16px 0 8px; font: 600 clamp(25px,3vw,38px)/1.72 var(--serif); }
.language-answer:first-child .target-sentence { font-family: var(--ru); }
.word-token { min-width: 44px; min-height: 44px; margin: 0 -4px; padding: 0 5px; color: #64a5ff; background: transparent; border: 0; border-bottom: 2px dotted currentColor; border-radius: 0; cursor: pointer; font: inherit; }
.word-token { outline: 3px solid transparent; outline-offset: 3px; }
.language-answer:first-child .word-token { color: #d5aa83; }
.word-token:hover, .word-token.is-active { color: #fff; background: rgba(255,255,255,.1); border-bottom-style: solid; }
.word-definition { display: grid; grid-template-columns: minmax(180px,.7fr) minmax(260px,1.15fr) minmax(260px,1.15fr); gap: 24px; align-items: start; height: 168px; padding: 24px 28px; overflow: auto; color: var(--ink); background: #e9deca; }
.word-definition small { color: var(--clay); font: 10px/1.4 var(--mono); letter-spacing: .1em; }
.word-definition h3 { margin: 7px 0 0; font: 650 28px/1.3 var(--serif); }
.word-definition p { margin: 0; font-size: 16px; }
.word-definition em { color: var(--navy); font-size: 15px; font-style: normal; }
.outcome-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: rgba(255,255,255,.12); border-top: 1px solid rgba(255,255,255,.12); }
.outcome-button { min-height: 64px; padding: 10px 14px; color: #d8d0c5; background: #232525; border: 0; cursor: pointer; font-size: 13px; }
.outcome-button:hover, .outcome-button.is-selected { color: #fff; background: var(--navy-soft); }
.practice-feedback { min-height: 58px; margin: 0; padding: 16px 28px; color: #c8c0b5; border-top: 1px solid rgba(255,255,255,.1); font-size: 16px; }
.recall-line { display: grid; grid-template-columns: repeat(5,1fr); margin: 50px 0 0; padding: 0; list-style: none; border-block: 1px solid var(--line-strong); }
.recall-line li { display: flex; gap: 12px; align-items: center; min-height: 72px; padding: 12px 14px; }
.recall-line li + li { border-left: 1px solid var(--line); }
.recall-line b { color: var(--clay); font: 11px/1 var(--mono); }
.recall-line span { font-size: 14px; }
.honesty-note { max-width: 980px; margin: 36px 0 0 11%; padding: 24px 0 0; border-top: 1px solid var(--line); font-family: var(--serif); font-size: 20px; }
.honesty-note b { color: var(--clay); }

/* Daily use */
.daily-spread { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(320px,.75fr); gap: clamp(54px,7vw,96px); }
.subheading { margin: 0 0 28px; font: 650 28px/1.35 var(--serif); }
.first-five { border-top: 2px solid var(--ink); }
.first-five-row { position: relative; display: grid; grid-template-columns: 34px 42px minmax(0,1fr); gap: 15px; align-items: center; min-height: 84px; padding: 12px 4px; border-bottom: 1px solid var(--line); cursor: pointer; }
.first-five-row input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.first-five-row > span { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid var(--line-strong); }
.first-five-row input:checked + span { color: #fff; background: var(--green); border-color: var(--green); }
.first-five-row input:checked + span::after { content: "✓"; }
.first-five-row > b { color: var(--clay); font: 11px/1 var(--mono); }
.first-five-copy { margin: 0; color: var(--muted); font-size: 16px; }
.first-five-copy strong { display: block; color: var(--ink); font-family: var(--serif); font-size: 19px; }
.check-progress { display: flex; gap: 14px; margin: 18px 0 0; color: var(--muted); font-size: 13px; }
.check-progress span { color: var(--clay); font: 700 14px/1.5 var(--mono); }
.moment-timeline { padding-left: 10px; }
.moment-line { display: grid; grid-template-columns: 64px minmax(0,1fr); gap: 20px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.moment-line:first-of-type { border-top: 2px solid var(--ink); }
.moment-line time { color: var(--clay); font: 700 18px/1.4 var(--mono); }
.moment-line h4 { margin: 0 0 6px; font: 650 21px/1.35 var(--serif); }
.moment-line p { margin: 0; color: var(--muted); font-size: 16px; }

/* Languages */
.language-spread { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: clamp(46px,6vw,86px); }
.language-column { min-width: 0; padding-top: 26px; border-top: 6px solid var(--blue); }
.english-column { border-color: var(--clay); }
.language-column header { display: grid; grid-template-columns: 125px minmax(0,1fr); gap: 20px; align-items: start; margin-bottom: 26px; }
.language-column header span { color: var(--blue); font: 700 10px/1.5 var(--mono); letter-spacing: .14em; }
.english-column header span { color: var(--clay); }
.language-column h3 { margin: 0; font: 650 28px/1.35 var(--serif); }
.language-numbers { min-height: 80px; margin: 0 0 24px; color: var(--muted); font-size: 14px; }
.language-numbers b { color: var(--ink); font: 650 25px/1.3 var(--serif); }
.language-column ul { margin: 0; padding: 0; list-style: none; }
.language-column li { padding: 16px 0 16px 25px; color: var(--muted); border-top: 1px solid var(--line); font-size: 16px; }
.language-column li::before { content: "—"; margin-left: -25px; margin-right: 10px; color: var(--blue); }
.english-column li::before { color: var(--clay); }
.content-disclaimer { margin: 30px 0 0; padding-top: 18px; color: var(--muted); border-top: 1px solid var(--line); font-size: 14px; }
.scene-manual { display: grid; grid-template-columns: minmax(230px,.75fr) minmax(380px,1.25fr); gap: clamp(42px,6vw,84px); margin-top: 64px; padding-top: 42px; border-top: 2px solid var(--ink); }
.scene-intro h3 { margin: 0; font: 650 31px/1.42 var(--serif); }
.scene-flow { margin: 0; padding: 0; list-style: none; }
.scene-step { display: grid; grid-template-columns: 42px minmax(0,1fr); gap: 17px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.scene-step > b { color: var(--clay); font: 11px/1.7 var(--mono); }
.scene-step h4 { margin: 0; font: 650 19px/1.35 var(--serif); }
.scene-step p { margin: 3px 0 0; color: var(--muted); font-size: 16px; }
.capture-copy { grid-column: 2; margin: 0; padding: 24px 0 0; color: var(--muted); border-top: 1px solid var(--line-strong); font-size: 16px; }
.capture-copy b { color: var(--ink); }

/* Desktop manual */
.desktop-spread { display: grid; grid-template-columns: minmax(430px,1.05fr) minmax(340px,.85fr); gap: clamp(50px,7vw,96px); align-items: center; }
.desktop-illustration { position: relative; min-height: 520px; overflow: hidden; background: linear-gradient(155deg, #c7ced0, #899aa1); border: 7px solid var(--navy); border-radius: 16px; box-shadow: 0 27px 56px rgba(16,36,62,.23); }
.fake-screen-menu { height: 36px; padding: 8px 13px; background: #f4f1ea; font: 9px/1.8 var(--mono); }
.fake-work { position: absolute; inset: 72px 130px 54px 38px; padding: 65px 22px 20px; background: rgba(239,237,229,.92); border-radius: 10px; box-shadow: 0 15px 35px rgba(16,36,62,.22); }
.fake-work::before { content: "工作窗口"; position: absolute; inset: 0 0 auto; height: 36px; padding: 8px 14px; color: #747b7d; background: #d7d4cc; font-size: 10px; }
.fake-work i { display: block; width: 90%; height: 8px; margin-bottom: 14px; background: #c8c6bf; border-radius: 5px; }
.fake-work i:nth-child(2) { width: 66%; }
.fake-floating { position: absolute; right: 18px; top: 115px; width: 250px; padding: 17px; color: #f4eadc; background: #242525; border-radius: 12px; box-shadow: 0 18px 36px rgba(0,0,0,.38); }
.fake-floating small { color: #a7a097; font: 8px/1 var(--mono); }
.fake-floating p { margin: 18px 0 25px; font-family: var(--serif); font-size: 18px; }
.fake-floating b { float: right; padding: 8px 11px; color: #211; background: var(--clay-light); border-radius: 999px; font-size: 10px; }
.fake-collapsed { position: absolute; right: 24px; bottom: 24px; display: grid; place-items: center; width: 58px; height: 58px; color: #fff; background: var(--navy); border-radius: 13px; font: 700 23px/1 var(--ru); box-shadow: 0 10px 24px rgba(0,0,0,.28); }
.manual-ledger { border-top: 2px solid var(--ink); }
.manual-row { display: grid; grid-template-columns: 40px minmax(0,1fr); gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.manual-row > b { color: var(--clay); font: 11px/1.7 var(--mono); }
.manual-row h3 { margin: 0 0 7px; font: 650 22px/1.3 var(--serif); }
.manual-row p { margin: 0; color: var(--muted); font-size: 16px; }
.distinction-note { max-width: 850px; margin: 48px 0 0 12%; padding: 24px 0 0; border-top: 1px solid var(--line-strong); font-family: var(--serif); font-size: 21px; }
.distinction-note b { color: var(--clay); }
.shortcut-section { margin-top: 64px; padding-top: 34px; border-top: 2px solid var(--ink); }
.shortcut-section > h3 { margin: 0 0 8px; font: 650 30px/1.35 var(--serif); }
.shortcut-section > p { max-width: 850px; color: var(--muted); }
.shortcut-table { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 28px; border-block: 1px solid var(--line-strong); }
.shortcut-table span { display: flex; gap: 12px; align-items: center; min-height: 62px; padding: 10px 14px; font-size: 13px; }
.shortcut-table span + span { border-left: 1px solid var(--line); }
.shortcut-table span:nth-child(5) { border-left: 0; }
.shortcut-table span:nth-child(n+5) { border-top: 1px solid var(--line); }
.shortcut-table kbd { color: var(--clay); font: 700 13px/1 var(--mono); }

/* Records */
.function-ledger { border-top: 2px solid var(--ink); }
.function-row { display: grid; grid-template-columns: 130px minmax(230px,.8fr) minmax(300px,1.2fr); gap: 30px; padding: 26px 8px; border-bottom: 1px solid var(--line); }
.function-row > b { color: var(--clay); font: 700 12px/1.7 var(--mono); }
.function-row h3 { margin: 0; font: 650 23px/1.35 var(--serif); }
.function-row p { margin: 0; color: var(--muted); font-size: 16px; }
.report-line { display: grid; grid-template-columns: 160px minmax(0,1fr) auto; gap: 30px; align-items: start; margin-top: 52px; padding: 26px 0; border-block: 1px solid var(--line-strong); }
.report-line > span { color: var(--clay); font: 700 11px/1.5 var(--mono); letter-spacing: .12em; }
.report-line h3 { margin: 0 0 8px; font: 650 25px/1.35 var(--serif); }
.report-line p { margin: 0; color: var(--muted); }
.report-line strong { color: var(--green); font-size: 13px; }
.report-note { max-width: 850px; margin: 18px 0 0 190px; color: var(--muted); font-size: 14px; }

/* Trust and closing */
.final-section { padding-bottom: 0; border-bottom: 0; }
.trust-ledger { border-top: 2px solid var(--ink); }
.trust-row { display: grid; grid-template-columns: 45px minmax(0,1fr) 160px; gap: 24px; align-items: start; padding: 25px 8px; border-bottom: 1px solid var(--line); }
.trust-row > b { color: var(--clay); font: 11px/1.8 var(--mono); }
.trust-row h3 { margin: 0 0 6px; font: 650 22px/1.35 var(--serif); }
.trust-row p { margin: 0; color: var(--muted); font-size: 16px; }
.trust-row em { color: var(--blue); font: normal 10px/1.6 var(--mono); letter-spacing: .1em; text-align: right; }
.platform-section { margin-top: 64px; padding-top: 34px; border-top: 2px solid var(--ink); }
.platform-section > h3 { margin: 0 0 28px; font: 650 32px/1.35 var(--serif); }
.platform-line { display: grid; grid-template-columns: 190px minmax(0,1fr) 100px; gap: 24px; align-items: center; min-height: 72px; border-top: 1px solid var(--line); }
.platform-line:last-child { border-bottom: 1px solid var(--line); }
.platform-line > b { font-family: var(--serif); font-size: 19px; }
.platform-line p { margin: 0; color: var(--muted); font-size: 16px; }
.platform-line strong { color: var(--clay); font-size: 12px; text-align: right; }
.platform-line[data-platform="macos"] strong { color: var(--green); }
.faq-list { max-width: 900px; margin-top: 64px; }
.faq-list > h3 { margin: 0 0 24px; font: 650 31px/1.35 var(--serif); }
.faq-list details { border-top: 1px solid var(--line-strong); }
.faq-list details:last-child { border-bottom: 1px solid var(--line-strong); }
.faq-list summary { min-height: 58px; padding: 16px 0; cursor: pointer; font: 650 19px/1.4 var(--serif); }
.faq-list p { margin: 0 0 20px; color: var(--muted); font-size: 16px; }

.closing-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0,1.05fr) minmax(320px,.75fr);
  gap: clamp(48px,6vw,88px);
  width: 100cqw;
  margin: clamp(82px,7vw,104px) 0 0 calc(50% - 50cqw);
  padding: clamp(58px,5vw,78px) max(32px, calc((100vw - 1480px) / 2));
  color: #f5ead8;
  background: linear-gradient(180deg, var(--navy-soft), var(--navy));
}
.closing-band::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 100%;
  left: 0;
  height: 96px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(243,238,226,0), rgba(173,165,149,.34) 48%, var(--navy-soft));
}
.final-checklist h3 { margin: 0 0 26px; font: 650 32px/1.35 var(--serif); }
.final-checklist label { position: relative; display: grid; grid-template-columns: 34px minmax(0,1fr); gap: 15px; align-items: center; min-height: 52px; border-top: 1px solid rgba(255,255,255,.16); cursor: pointer; font-size: 16px; }
.final-checklist label:last-child { border-bottom: 1px solid rgba(255,255,255,.16); }
.final-checklist input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.final-checklist label span { display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid rgba(255,255,255,.48); }
.final-checklist input:checked + span { color: var(--navy); background: #d9c5a1; }
.final-checklist input:checked + span::after { content: "✓"; }
.closing-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.closing-copy img { width: 84px; height: 84px; margin-bottom: 30px; border-radius: 20px; }
.closing-copy p { margin: 0 0 28px; color: #c4cbd0; font: 500 clamp(24px,2.7vw,34px)/1.5 var(--serif); }
.closing-copy p b { color: #fff8ec; }
.closing-copy a { display: inline-flex; gap: 36px; align-items: center; min-width: 180px; min-height: 52px; padding: 10px 17px; color: var(--navy); background: #d9c5a1; border-radius: 14px; text-decoration: none; font-weight: 800; }
.site-footer { display: flex; justify-content: space-between; gap: 20px; width: 100cqw; margin: 0 0 0 calc(50% - 50cqw); padding: 22px max(32px, calc((100vw - 1480px) / 2)); color: #8897a5; background: var(--navy); border-top: 1px solid rgba(255,255,255,.13); font: 9px/1.4 var(--mono); letter-spacing: .12em; }

/* Focus and export */
.site-nav a:focus-visible, .hero-actions a:focus-visible, .word-token:focus-visible,
.practice-actions button:focus-visible, .outcome-button:focus-visible,
.first-five-row input:focus-visible + span, .final-checklist input:focus-visible + span,
.faq-list summary:focus-visible, .closing-copy a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
}
.practice-shell .word-token:focus-visible, .practice-shell button:focus-visible { outline-color: #f3b28f; }

html.export-static .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
html.export-static * { animation: none !important; transition: none !important; }
html.export-static .site-header, html.export-static .reading-progress { display: none !important; }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: auto minmax(0,1fr); }
  .header-status { display: none; }
  .site-nav { justify-content: flex-end; }
  .site-nav a { padding-inline: 8px; }
  .hero-layout { grid-template-columns: minmax(0,.9fr) minmax(390px,1.1fr); gap: 44px; }
  .product-scene { min-height: 510px; }
  .problem-row { grid-template-columns: 45px minmax(175px,.75fr) minmax(230px,1.25fr); }
  .problem-row em { grid-column: 2 / -1; }
  .shortcut-table { grid-template-columns: repeat(2,1fr); }
  .shortcut-table span:nth-child(odd) { border-left: 0; }
  .shortcut-table span:nth-child(n+3) { border-top: 1px solid var(--line); }
}

@media (max-width: 900px) {
  html { scroll-padding-top: 78px; }
  .site-header { display: flex; min-height: 68px; padding: 8px 22px; }
  .site-brand { flex: none; }
  .site-brand small { display: none; }
  .site-nav { justify-content: flex-start; overflow-x: auto; overscroll-behavior-inline: contain; scrollbar-width: none; }
  .site-nav::-webkit-scrollbar { display: none; }
  .site-nav a { flex: none; }
  .story-section { padding-inline: clamp(24px,6vw,48px); }
  .hero-layout, .practice-language-grid, .language-spread, .desktop-spread, .daily-spread, .closing-band { grid-template-columns: minmax(0,1fr); }
  .hero-copy { max-width: 720px; }
  .product-scene { min-height: 480px; }
  .language-answer + .language-answer { border-left: 0; border-top: 1px solid rgba(255,255,255,.12); }
  .word-definition { grid-template-columns: minmax(160px,.65fr) minmax(0,1.35fr); height: 190px; }
  .word-definition em { grid-column: 1 / -1; }
  .outcome-strip { grid-template-columns: repeat(2,1fr); }
  .outcome-button:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,.12); }
  .recall-line { grid-template-columns: repeat(5,minmax(125px,1fr)); overflow-x: auto; }
  .scene-manual { grid-template-columns: minmax(0,1fr); }
  .capture-copy { grid-column: 1; }
  .desktop-illustration { min-height: 500px; }
  .distinction-note { margin-left: 0; }
  .function-row { grid-template-columns: 110px minmax(0,1fr); }
  .function-row p { grid-column: 2; }
  .report-line { grid-template-columns: 140px minmax(0,1fr); }
  .report-line strong { grid-column: 2; }
  .report-note { margin-left: 170px; }
  .closing-band, .site-footer { padding-inline: clamp(24px,6vw,48px); }
}

@media (max-width: 680px) {
  .site-header { align-items: center; }
  .site-brand span { display: none; }
  .site-nav a { padding-inline: 10px; font-size: 11px; }
  .story-section { padding-block: 72px 86px; }
  .hero-section { padding-top: 38px; }
  .hero-copy h1 { font-size: clamp(47px,14vw,65px); }
  .hero-deck { font-size: 18px; }
  .hero-actions { display: grid; }
  .hero-actions a { width: 100%; }
  .availability-line { display: grid; }
  .product-scene { min-height: 460px; }
  .scene-window { inset: 72px 80px 130px 20px; }
  .corner-card { right: 15px; top: 122px; width: calc(100% - 30px); }
  .scene-caption { inset-inline: 20px; grid-template-columns: 1fr; gap: 2px; }
  .hero-principles { grid-template-columns: 1fr; }
  .hero-principles span + span { border-left: 0; border-top: 1px solid var(--line); }
  .problem-row { grid-template-columns: 40px minmax(0,1fr); gap: 14px; }
  .problem-row p, .problem-row em { grid-column: 2; }
  .thought-line { grid-template-columns: 1fr; gap: 16px; }
  .thought-line > span { transform: rotate(90deg); transform-origin: center; justify-self: start; margin-left: 10px; }
  .practice-shell { margin-inline: -12px; box-shadow: 10px 14px 0 var(--paper-deep); }
  .practice-topline { flex-wrap: wrap; gap: 8px 13px; }
  .practice-topline b { margin-left: 0; }
  .practice-intent, .language-answer { padding-inline: 20px; }
  .practice-actions { padding-inline: 20px; }
  .target-sentence { min-height: 0; font-size: 27px; }
  .word-definition { grid-template-columns: 1fr; height: 244px; padding-inline: 20px; }
  .word-definition em { grid-column: auto; }
  .outcome-strip { grid-template-columns: 1fr; }
  .outcome-button + .outcome-button { border-top: 1px solid rgba(255,255,255,.12); }
  .honesty-note { margin-left: 0; }
  .language-column header { grid-template-columns: 1fr; }
  .scene-manual { margin-top: 66px; }
  .desktop-illustration { min-height: 440px; }
  .fake-work { inset: 65px 65px 55px 20px; }
  .fake-floating { right: 12px; top: 110px; width: 225px; }
  .shortcut-table { grid-template-columns: 1fr; }
  .shortcut-table span { border-left: 0 !important; border-top: 1px solid var(--line); }
  .function-row { grid-template-columns: 1fr; gap: 7px; }
  .function-row p { grid-column: auto; }
  .report-line { grid-template-columns: 1fr; }
  .report-line strong { grid-column: auto; }
  .report-note { margin-left: 0; }
  .trust-row { grid-template-columns: 38px minmax(0,1fr); gap: 14px; }
  .trust-row em { grid-column: 2; text-align: left; }
  .platform-line { grid-template-columns: minmax(0,1fr) auto; gap: 6px 14px; padding-block: 14px; }
  .platform-line p { grid-column: 1 / -1; grid-row: 2; }
  .closing-band { margin-top: 82px; }
  .site-footer { display: grid; }
}

@media (max-width: 420px) {
  .site-header { padding-inline: 14px; }
  .site-brand img { width: 40px; height: 40px; }
  .site-nav a { padding-inline: 9px; }
  .story-section { padding-inline: 22px; }
  .section-index { margin-bottom: 34px; }
  .editorial-heading { margin-bottom: 44px; }
  .editorial-heading h2 { font-size: 38px; }
  .hero-copy h1 { font-size: 48px; }
  .hero-deck { margin-bottom: 24px; }
  .product-scene { min-height: 440px; }
  .corner-card { top: 105px; }
  .corner-body blockquote { font-size: 23px; }
  .scene-caption { bottom: 18px; }
  .practice-shell { margin-inline: -10px; }
  .practice-intent p { font-size: 28px; }
  .first-five-row { grid-template-columns: 34px 34px minmax(0,1fr); gap: 10px; }
  .moment-line { grid-template-columns: 56px minmax(0,1fr); gap: 12px; }
  .desktop-illustration { min-height: 420px; }
  .fake-floating { width: 210px; }
  .closing-band, .site-footer { padding-inline: 22px; }
}

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