:root {
  --bg: #111310;
  --surface: #181b17;
  --surface-2: #21251f;
  --surface-3: #2a3028;
  --text: #f2f0e8;
  --muted: #a9aea3;
  --line: #363c33;
  --accent: #d7f36a;
  --accent-2: #8fd4ff;
  --warm: #ffad66;
  --danger: #ff7b73;
  --success: #6de0a1;
  --shadow: 0 24px 70px rgb(0 0 0 / 0.28);
  --radius: 22px;
  --shell: 1240px;
}

html[data-theme='light'] {
  --bg: #f1f0e9;
  --surface: #fbfaf5;
  --surface-2: #e7e7df;
  --surface-3: #d9ddd1;
  --text: #151711;
  --muted: #60665b;
  --line: #cfd2c7;
  --accent: #647b00;
  --accent-2: #17658e;
  --warm: #b25714;
  --danger: #b8332d;
  --success: #147344;
  --shadow: 0 24px 70px rgb(45 48 39 / 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; font-size: 16px; line-height: 1.7; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--accent); color: #111; }

.skip-link { position: fixed; left: 16px; top: -80px; z-index: 999; background: var(--accent); color: #111; padding: 10px 16px; border-radius: 10px; font-weight: 800; }
.skip-link:focus { top: 16px; }
.shell { width: min(var(--shell), calc(100% - 40px)); margin-inline: auto; }

.topbar { position: fixed; inset: 0 0 auto; z-index: 100; height: 72px; display: flex; align-items: center; gap: 40px; padding: 0 max(24px, calc((100vw - var(--shell)) / 2)); border-bottom: 1px solid rgb(255 255 255 / 0.08); background: color-mix(in srgb, var(--bg) 84%, transparent); backdrop-filter: blur(18px); }
.brand { display: flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent); color: #111; font: 900 23px/1 Georgia, serif; }
.brand strong, .brand small { display: block; line-height: 1.2; }
.brand strong { font-size: 14px; letter-spacing: 0.08em; }
.brand small { color: var(--muted); font-size: 10px; margin-top: 3px; }
.desktop-nav { display: flex; gap: 28px; margin-inline: auto; color: var(--muted); font-size: 14px; }
.desktop-nav a:hover { color: var(--text); }
.top-actions { display: flex; align-items: center; gap: 8px; }
.icon-button, .print-button { border: 1px solid var(--line); background: var(--surface); color: var(--text); cursor: pointer; }
.icon-button { width: 40px; height: 40px; border-radius: 50%; font-size: 19px; }
.print-button { min-height: 40px; padding: 0 15px; border-radius: 999px; font-weight: 700; font-size: 13px; }

.hero { position: relative; min-height: 760px; display: grid; align-items: end; overflow: hidden; background: #0b1115; }
.hero-image, .hero-overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { object-fit: cover; object-position: 56% center; }
.hero-overlay { background: linear-gradient(90deg, rgb(6 10 12 / 0.95) 0%, rgb(7 10 12 / 0.72) 38%, rgb(7 10 12 / 0.08) 76%), linear-gradient(0deg, rgb(8 10 9 / 0.98), transparent 45%); }
.hero-content { position: relative; z-index: 2; padding-block: 160px 76px; }
.eyebrow, .kicker { margin: 0; color: var(--accent); font-size: 12px; font-weight: 900; letter-spacing: 0.16em; }
.hero h1 { margin: 18px 0; max-width: 700px; font-size: clamp(56px, 8vw, 104px); line-height: 0.96; letter-spacing: -0.065em; }
.hero h1 em { color: var(--accent); font-style: normal; }
.hero-lead { max-width: 610px; margin: 0; color: #c9ccc6; font-size: clamp(17px, 2vw, 21px); }
.hero-actions { display: flex; gap: 12px; margin-top: 32px; }
.primary-button, .secondary-button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 22px; border-radius: 999px; font-weight: 850; }
.primary-button { background: var(--accent); color: #111; }
.secondary-button { border: 1px solid rgb(255 255 255 / 0.24); color: #fff; background: rgb(255 255 255 / 0.07); backdrop-filter: blur(10px); }
.hero-facts { display: flex; gap: 42px; margin: 54px 0 0; padding: 0; list-style: none; }
.hero-facts li { display: grid; gap: 2px; }
.hero-facts b { color: #fff; font-size: 22px; }
.hero-facts span { color: #9ca39e; font-size: 12px; }

.layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 56px; align-items: start; }
.side-rail { position: sticky; top: 96px; display: grid; gap: 2px; padding-block: 70px; }
.rail-title { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: 0.12em; margin-bottom: 10px; }
.side-rail a { display: flex; gap: 12px; align-items: center; padding: 8px 0; color: var(--muted); font-size: 13px; }
.side-rail a span { color: var(--accent); font: 700 10px/1 monospace; }
.side-rail a:hover { color: var(--text); transform: translateX(3px); }
.rail-note { margin-top: 24px; padding: 15px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); color: var(--muted); font-size: 12px; line-height: 1.8; }
.rail-note b { color: var(--text); }
.content { min-width: 0; }
.section { padding-block: 86px; border-bottom: 1px solid var(--line); }
.section-heading { display: grid; grid-template-columns: minmax(300px, 1fr) minmax(300px, 0.8fr); gap: 56px; align-items: end; margin-bottom: 36px; }
.section-heading.compact { margin-bottom: 30px; }
.section-heading h2 { margin: 5px 0 0; font-size: clamp(34px, 4.6vw, 58px); line-height: 1.08; letter-spacing: -0.045em; }
.section-heading > p { margin: 0; color: var(--muted); }

.quick-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.panel { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: 0 1px 0 rgb(255 255 255 / 0.025) inset; }
.field-order { grid-column: 1 / -1; }
.panel-head { display: flex; gap: 14px; align-items: center; margin-bottom: 20px; }
.panel-head .number { display: grid; place-items: center; flex: 0 0 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #15170f; font: 900 12px/1 monospace; }
.panel h3, .panel p { margin: 0; }
.panel h3 { font-size: 19px; }
.panel-head p { color: var(--muted); font-size: 12px; }
.setting-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin: 0; }
.setting-list div { padding: 12px 14px; border-radius: 12px; background: var(--surface-2); }
.setting-list dt { color: var(--muted); font-size: 11px; }
.setting-list dd { margin: 1px 0 0; font-weight: 800; }
.micro-tip { margin-top: 14px !important; padding-top: 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.field-order ol { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.field-order li { min-height: 122px; padding: 17px; border-radius: 14px; background: var(--surface-2); }
.field-order li b, .field-order li span { display: block; }
.field-order li b { margin-bottom: 8px; font-size: 16px; }
.field-order li span { color: var(--muted); font-size: 12px; }
.warning-strip { display: flex; align-items: center; gap: 15px; margin-top: 16px; padding: 17px 20px; border: 1px solid color-mix(in srgb, var(--warm) 48%, var(--line)); border-radius: 15px; background: color-mix(in srgb, var(--warm) 8%, var(--surface)); }
.warning-strip p { margin: 0; font-size: 13px; }
.warning-icon { display: grid; place-items: center; flex: 0 0 30px; height: 30px; border-radius: 50%; background: var(--warm); color: #19120c; font-weight: 900; }

.focal-map { position: relative; display: grid; grid-template-columns: 1fr 1.35fr 1.2fr; gap: 22px; padding: 36px 22px 22px; margin-bottom: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.focal-line { position: absolute; left: 9%; right: 9%; top: 31px; height: 4px; background: linear-gradient(90deg, var(--accent-2), var(--accent), var(--warm)); border-radius: 9px; }
.focal-line i { position: absolute; inset: -5px auto auto 0; width: 14px; height: 14px; border-radius: 50%; background: var(--accent-2); box-shadow: calc((min(100vw, 1000px) - 300px) * .38) 0 var(--accent), calc((min(100vw, 1000px) - 245px) * .78) 0 var(--warm); }
.focal-stop { position: relative; display: grid; padding-top: 15px; }
.focal-stop::before { content: ''; position: absolute; top: -12px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: currentColor; }
.focal-stop.wide { color: var(--accent-2); }.focal-stop.normal { color: var(--accent); }.focal-stop.portrait { color: var(--warm); }
.focal-stop b { font-size: 30px; line-height: 1; }.focal-stop span { color: var(--text); font-weight: 800; }.focal-stop small { color: var(--muted); }
.compare-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.compare-cards article { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.compare-cards h3, .compare-cards p { margin-inline: 18px; }.compare-cards h3 { margin-block: 16px 5px; }.compare-cards p { margin-block: 0 20px; color: var(--muted); font-size: 13px; }
.perspective { position: relative; height: 160px; overflow: hidden; background: #202c29; }
.perspective img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.92) contrast(1.03); }
.perspective span { position: absolute; left: 12px; bottom: 11px; padding: 5px 8px; border-radius: 999px; background: rgb(5 10 9 / .76); color: white; font-size: 9px; backdrop-filter: blur(7px); }
.wide-view img { object-position: 50% 48%; }.normal-view img { object-position: 34% 45%; }.tele-view img { object-position: 66% 35%; transform: scale(1.08); }

.decision-flow { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.decision.question { display: flex; align-items: center; justify-content: center; gap: 14px; }.decision.question span { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: #111; font-weight: 900; }.decision.question h3 { font-size: 24px; }
.connector { position: relative; display: flex; justify-content: space-around; max-width: 620px; margin: 10px auto 0; padding-top: 28px; color: var(--muted); font-size: 12px; }.connector::before { content: ''; position: absolute; top: 0; left: 25%; right: 25%; height: 22px; border: 1px solid var(--line); border-top: 0; }
.decision-branches { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }.decision-branches article { padding: 20px; border-radius: 15px; background: var(--surface-2); }.decision-branches b, .decision-branches strong { display: block; }.decision-branches b { color: var(--muted); font-size: 12px; }.decision-branches strong { margin: 6px 0; color: var(--accent); font-size: 23px; }.decision-branches p { margin: 0; color: var(--muted); font-size: 13px; }
.decision-end { margin-top: 14px; padding: 14px; border: 1px dashed var(--line); border-radius: 12px; text-align: center; font-size: 13px; }

.scene-tools { margin-bottom: 24px; }.search-box { display: flex; align-items: center; gap: 10px; min-height: 54px; padding-inline: 16px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }.search-box span { color: var(--accent); font-size: 25px; }.search-box input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; color: var(--text); }.search-box kbd { padding: 2px 7px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: var(--surface-2); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }.filter { min-height: 38px; padding: 0 16px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; }.filter:hover, .filter.active { border-color: var(--accent); color: #111; background: var(--accent); font-weight: 800; }
.result-count { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
.scene-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.scene-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); transition: border-color .2s ease, transform .2s ease; }.scene-card:hover { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); transform: translateY(-2px); }
.scene-card[hidden] { display: none; }
.scene-diagram { position: relative; padding: 12px; aspect-ratio: 16 / 9; background: #0e1415; border-bottom: 1px solid var(--line); cursor: zoom-in; }
.scene-diagram svg { width: 100%; height: 100%; border-radius: 12px; }
.zoom-hint { position: absolute; right: 20px; bottom: 18px; padding: 5px 9px; border-radius: 999px; background: rgb(5 8 8 / .74); color: #dce3dc; font-size: 10px; backdrop-filter: blur(8px); }
.scene-summary { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: start; padding: 20px; cursor: pointer; list-style: none; }.scene-summary::-webkit-details-marker { display: none; }.scene-title h3, .scene-title p { margin: 0; }.scene-title h3 { font-size: 21px; }.scene-title p { color: var(--muted); font-size: 12px; }.open-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--surface-2); color: var(--accent); font-size: 20px; transition: transform .2s ease; }.scene-card[open] .open-mark { transform: rotate(45deg); }
.parameter-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; padding: 0 20px 18px; }.parameter { padding: 10px; border-radius: 10px; background: var(--surface-2); }.parameter small, .parameter b { display: block; }.parameter small { color: var(--muted); font-size: 9px; letter-spacing: .08em; }.parameter b { margin-top: 2px; font-size: 12px; }
.scene-detail { padding: 0 20px 22px; }.scene-detail h4 { margin: 18px 0 7px; color: var(--accent); font-size: 12px; letter-spacing: .1em; }.scene-detail ul { margin: 0; padding-left: 20px; }.scene-detail li { margin-bottom: 6px; color: var(--muted); font-size: 13px; }.scene-detail li::marker { color: var(--accent); }.diagram-legend { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px; margin: 16px 0; padding: 12px; border: 1px dashed var(--line); border-radius: 12px; }.diagram-legend span { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }.diagram-legend i { width: 12px; height: 12px; border-radius: 50%; }.legend-camera { background: var(--accent-2); }.legend-subject { background: var(--warm); }.legend-light { background: #f7dc61; }.legend-focus { border: 2px solid var(--accent); }
.edit-note { padding: 13px; border-left: 3px solid var(--accent-2); background: color-mix(in srgb, var(--accent-2) 7%, var(--surface-2)); color: var(--text) !important; }
.empty-state { padding: 40px; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; }.empty-state b, .empty-state span { display: block; }.empty-state span { color: var(--muted); }

.workflow { position: relative; display: grid; gap: 12px; }.workflow::before { content: ''; position: absolute; left: 27px; top: 30px; bottom: 30px; width: 1px; background: var(--line); }.workflow-step { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }.step-no { z-index: 1; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--surface-3); color: var(--accent); font: 900 11px/1 monospace; }.workflow-step small { color: var(--accent-2); font-weight: 800; }.workflow-step h3 { margin: 2px 0 5px; font-size: 21px; }.workflow-step p { margin: 0; color: var(--muted); }.workflow-step b { display: block; margin-top: 10px; font-size: 12px; }.workflow-step code { padding: 2px 6px; border-radius: 5px; background: var(--surface-2); color: var(--accent); }.workflow-step.ps-step { border-color: color-mix(in srgb, #456dff 52%, var(--line)); background: linear-gradient(125deg, color-mix(in srgb, #2035a3 16%, var(--surface)), var(--surface)); }
.ps-board { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; margin-top: 20px; padding: 28px; border-radius: var(--radius); background: #171d31; color: #eef0ff; }.ps-copy h3 { margin: 7px 0; font-size: 27px; }.ps-copy p { color: #adb4cc; }.ps-copy ul { padding-left: 0; list-style: none; }.ps-copy li { margin-top: 12px; color: #c9cee0; font-size: 13px; }.ps-copy li span { display: inline-block; min-width: 45px; margin-right: 7px; padding: 2px 7px; border-radius: 999px; text-align: center; font-weight: 900; }.yes { background: #2e7f57; color: #fff; }.no { background: #913e47; color: #fff; }
.layer-stack { align-self: center; display: grid; gap: 7px; perspective: 800px; }.layer { display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 8px; padding: 12px; border: 1px solid #3b456b; border-radius: 9px; background: #232b48; box-shadow: 0 6px 15px rgb(0 0 0 / .18); transform: translateX(calc(var(--i, 0) * 4px)); }.layer i { color: #8992ae; font-size: 10px; }.layer.smart { border-color: #526cff; }.layer.visible { outline: 1px solid #778aff; }

.rescue-grid { display: grid; gap: 9px; }.rescue-grid details { border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }.rescue-grid summary { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 12px; padding: 18px; cursor: pointer; list-style: none; }.rescue-grid summary::-webkit-details-marker { display: none; }.rescue-grid summary span { color: var(--accent); font: 800 11px/1 monospace; }.rescue-grid summary i { color: var(--accent); font-style: normal; font-size: 22px; transition: transform .2s ease; }.rescue-grid details[open] summary i { transform: rotate(45deg); }.rescue-grid details > div { padding: 0 18px 18px 68px; color: var(--muted); font-size: 13px; }.rescue-grid details p { margin: 7px 0; }.rescue-grid details strong { color: var(--text); }
.practice-track { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }.practice-track article { display: flex; gap: 18px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }.practice-track article > span { display: grid; place-items: center; flex: 0 0 48px; height: 48px; border-radius: 14px; background: var(--accent); color: #111; font-weight: 950; }.practice-track small { color: var(--accent-2); }.practice-track h3 { margin: 2px 0; }.practice-track p { margin: 0; color: var(--muted); font-size: 13px; }
.final-check { margin-block: 86px; padding: 48px; border-radius: 28px; background: var(--accent); color: #15170f; }.final-check .kicker { color: #435100; }.final-check h2 { margin: 4px 0 22px; font-size: clamp(34px, 5vw, 58px); line-height: 1.05; letter-spacing: -.05em; }.final-check > div { display: grid; grid-template-columns: auto 1fr auto 1fr; gap: 12px 15px; }.final-check > div span { font: 900 11px/2 monospace; opacity: .5; }.final-check a { display: inline-block; margin-top: 28px; font-weight: 900; border-bottom: 2px solid; }
footer { padding: 34px 0 110px; color: var(--muted); font-size: 12px; } footer .shell { display: flex; justify-content: space-between; gap: 20px; } footer b { color: var(--text); }
.mobile-nav { display: none; }

.diagram-modal { position: fixed; inset: 0; z-index: 300; display: grid; place-items: center; padding: 24px; background: rgb(3 5 5 / .88); backdrop-filter: blur(14px); }.diagram-modal[hidden] { display: none; }.diagram-modal-dialog { width: min(1180px, 100%); max-height: calc(100vh - 48px); overflow: auto; padding: 18px; border: 1px solid #3c4643; border-radius: 20px; background: #101514; box-shadow: var(--shadow); }.diagram-modal-head { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 12px; color: #fff; }.diagram-modal-head h2 { margin: 0; font-size: 21px; }.modal-close { width: 40px; height: 40px; border: 1px solid #49514f; border-radius: 50%; background: #212725; color: #fff; cursor: pointer; font-size: 22px; }.diagram-modal svg { width: 100%; min-width: 760px; border-radius: 14px; }.diagram-modal-note { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }.diagram-modal-note span { padding: 5px 10px; border-radius: 999px; background: #212725; color: #bfc6c2; font-size: 11px; }

@media (max-width: 1000px) {
  .desktop-nav { display: none; }.layout { grid-template-columns: 1fr; }.side-rail { display: none; }.section-heading { gap: 28px; }.hero { min-height: 700px; }.hero-image { object-position: 62% center; }.scene-grid { grid-template-columns: 1fr; }.scene-card { max-width: 760px; }.scene-diagram { aspect-ratio: 2 / 1; }
}

@media (max-width: 720px) {
  html { scroll-padding-top: 70px; }.shell { width: min(100% - 28px, var(--shell)); }.topbar { height: 62px; padding: 0 14px; }.brand small { display: none; }.brand-mark { width: 32px; height: 32px; }.print-button { display: none; }.top-actions { margin-left: auto; }
  .hero { min-height: 720px; }.hero-image { object-position: 68% center; }.hero-overlay { background: linear-gradient(0deg, rgb(7 9 8 / .98) 5%, rgb(7 9 8 / .70) 55%, rgb(7 9 8 / .12)); }.hero-content { padding-block: 270px 45px; }.hero h1 { font-size: clamp(48px, 15vw, 72px); }.hero-lead { font-size: 16px; }.hero-actions { align-items: stretch; }.primary-button, .secondary-button { padding-inline: 16px; font-size: 13px; }.hero-facts { gap: 18px; justify-content: space-between; margin-top: 38px; }.hero-facts b { font-size: 17px; }.hero-facts span { font-size: 9px; }
  .section { padding-block: 64px; }.section-heading { grid-template-columns: 1fr; gap: 13px; }.section-heading h2 { font-size: 38px; }.section-heading > p { font-size: 14px; }
  .quick-grid { grid-template-columns: 1fr; }.field-order { grid-column: auto; }.field-order ol { grid-template-columns: repeat(2, 1fr); }.setting-list { grid-template-columns: 1fr 1fr; }.panel { padding: 20px; }
  .focal-map { grid-template-columns: 1fr; gap: 22px; padding-top: 22px; }.focal-line { left: 25px; top: 25px; bottom: 25px; width: 3px; height: auto; background: linear-gradient(var(--accent-2), var(--accent), var(--warm)); }.focal-line i { display: none; }.focal-stop { padding: 0 0 0 28px; }.focal-stop::before { top: 7px; left: -2px; }.compare-cards { grid-template-columns: 1fr; }.perspective { height: 190px; }
  .decision-flow { padding: 18px; }.decision-branches { grid-template-columns: 1fr; }.connector { display: none; }.decision.question { justify-content: flex-start; }.decision.question h3 { font-size: 20px; }.decision-branches strong { font-size: 18px; }
  .scene-grid { gap: 14px; }.scene-diagram { aspect-ratio: 1.45 / 1; padding: 7px; }.scene-summary { padding: 16px; }.parameter-grid { padding-inline: 16px; grid-template-columns: repeat(2, 1fr); }.scene-detail { padding-inline: 16px; }.diagram-legend { grid-template-columns: 1fr 1fr; }
  .workflow-step { grid-template-columns: 42px 1fr; gap: 10px; padding: 17px; }.workflow::before { left: 19px; }.step-no { width: 30px; height: 30px; }.workflow-step h3 { font-size: 18px; }.workflow-step p { font-size: 13px; }.ps-board { grid-template-columns: 1fr; padding: 21px; }.layer { grid-template-columns: 18px 1fr; }.layer i { grid-column: 2; }
  .rescue-grid details > div { padding-left: 18px; }.practice-track { grid-template-columns: 1fr; }.final-check { padding: 28px 22px; margin-block: 64px 90px; }.final-check > div { grid-template-columns: auto 1fr; }
  footer { padding-bottom: 120px; } footer .shell { display: grid; }
  .mobile-nav { position: fixed; z-index: 150; left: 12px; right: 12px; bottom: calc(10px + env(safe-area-inset-bottom)); display: grid; grid-template-columns: repeat(4, 1fr); padding: 6px; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--surface) 90%, transparent); box-shadow: var(--shadow); backdrop-filter: blur(18px); }.mobile-nav a { display: grid; place-items: center; padding: 5px 2px; color: var(--muted); font-size: 10px; }.mobile-nav span { color: var(--accent); font-size: 18px; line-height: 1.2; }
  .diagram-modal { padding: 8px; }.diagram-modal-dialog { max-height: calc(100vh - 16px); padding: 10px; }.diagram-modal svg { min-width: 760px; }.diagram-modal-head { position: sticky; left: 0; top: 0; z-index: 2; padding: 6px; background: #101514; }.diagram-modal-head h2 { font-size: 16px; }
}

@media print {
  :root { --bg: #fff; --surface: #fff; --surface-2: #f3f3f0; --surface-3: #e8e8e4; --text: #111; --muted: #555; --line: #bbb; --accent: #617400; --accent-2: #17658e; }
  .topbar, .side-rail, .hero-actions, .scene-tools, .mobile-nav, .zoom-hint, footer { display: none !important; }
  .hero { min-height: 420px; break-after: page; }.hero-content { padding-block: 120px 40px; }.hero h1 { font-size: 64px; }.hero-image { filter: grayscale(.4); }.hero-overlay { background: linear-gradient(90deg, rgb(0 0 0 / .88), transparent); }
  .layout { display: block; }.section { padding-block: 36px; }.section-heading h2 { font-size: 36px; }.scene-grid { grid-template-columns: 1fr 1fr; }.scene-card { break-inside: avoid; }.scene-card .scene-detail { display: block !important; }.scene-diagram { print-color-adjust: exact; -webkit-print-color-adjust: exact; }.workflow-step, .panel, .scene-card, .ps-board { break-inside: avoid; box-shadow: none; }
  .final-check { color: #111; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
}

.scene-card details[open] .open-mark { transform: rotate(45deg); }

h1, h2, h3, h4 { text-wrap: balance; }
p, li, dd { text-wrap: pretty; }
.parameter b, .ev-scale, .meter-list dd, .setting-list dd { font-variant-numeric: tabular-nums; }

/* Nine-grid composition system */
.grid-principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid-principles article { display: grid; grid-template-columns: 210px 1fr; gap: 20px; align-items: center; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.grid-principles article > div:last-child > span { color: var(--accent); font: 900 11px/1 monospace; }
.grid-principles h3 { margin: 5px 0; font-size: 19px; }
.grid-principles p { margin: 0; color: var(--muted); font-size: 12px; }
.principle-grid { position: relative; aspect-ratio: 3 / 2; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); }
.principle-grid::before { content: ''; position: absolute; inset: 0 33.333%; border-inline: 1px solid color-mix(in srgb, var(--text) 48%, transparent); }
.principle-grid::after { content: ''; position: absolute; inset: 33.333% 0; border-block: 1px solid color-mix(in srgb, var(--text) 48%, transparent); }
.principle-grid.intersections i { position: absolute; z-index: 2; width: 12px; height: 12px; border: 3px solid var(--surface-2); border-radius: 50%; background: var(--accent); transform: translate(-50%, -50%); }
.principle-grid.intersections i:nth-child(1) { left: 33.333%; top: 33.333%; }.principle-grid.intersections i:nth-child(2) { left: 66.666%; top: 33.333%; }.principle-grid.intersections i:nth-child(3) { left: 33.333%; top: 66.666%; }.principle-grid.intersections i:nth-child(4) { left: 66.666%; top: 66.666%; }
.principle-grid.eye-line i { position: absolute; z-index: 2; left: 61%; top: 21%; width: 38px; height: 48px; border-radius: 50% 50% 45% 45%; background: var(--warm); }
.principle-grid.eye-line i::after { content: ''; position: absolute; left: 7px; right: 7px; top: 17px; border-top: 3px solid #1a1713; }
.principle-grid.eye-line b, .principle-grid.look-room b, .principle-grid.horizon-rule b, .principle-grid.horizon-rule em { position: absolute; z-index: 2; padding: 3px 6px; border-radius: 6px; background: var(--bg); color: var(--text); font-size: 9px; font-style: normal; }
.principle-grid.eye-line b { left: 6px; top: calc(33.333% - 26px); }
.principle-grid.look-room .mini-person { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; object-fit: cover; object-position: 38% 42%; opacity: .78; }
.principle-grid.look-room b { right: 7px; top: 15px; color: var(--accent-2); }
.principle-grid.horizon-rule i { position: absolute; z-index: 2; left: 0; right: 0; top: 66.666%; border-top: 3px dashed var(--accent); }
.principle-grid.horizon-rule b { left: 6px; top: 9px; }.principle-grid.horizon-rule em { right: 6px; bottom: 7px; }
.grid-legend-panel { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 16px; padding: 17px 20px; border: 1px dashed var(--line); border-radius: 15px; background: var(--surface); }
.grid-legend-panel > b { margin-right: auto; font-size: 13px; }.grid-legend-panel > span { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }.grid-legend-panel i { display: inline-block; width: 14px; height: 14px; }
.grid-area-key { border: 2px dashed var(--warm); background: color-mix(in srgb, var(--warm) 12%, transparent); }.grid-focus-key { border: 4px solid var(--accent); border-radius: 50%; }.grid-space-key { border-right: 14px solid var(--accent-2); border-block: 6px solid transparent; }.grid-horizon-key { height: 2px !important; border-top: 3px dashed var(--accent); }
.scene-card:has(details[open]) { grid-column: 1 / -1; }
.scene-card:has(details[open]) .scene-diagram { aspect-ratio: 2 / 1; }
.nine-grid-card { position: relative; display: block; width: 100%; overflow: hidden; margin-top: 9px; padding: 0; border: 1px solid var(--line); border-radius: 14px; background: #111817; color: inherit; cursor: zoom-in; }
.nine-grid-card svg { width: 100%; height: auto; }
.grid-zoom-hint { position: absolute; right: 12px; bottom: 10px; padding: 5px 9px; border-radius: 999px; background: rgb(5 8 8 / .84); color: #dce3dc; font-size: 10px; }
.grid-tip-list { margin-top: 13px !important; padding: 15px 15px 10px 34px !important; border-radius: 12px; background: var(--surface-2); }
.grid-tip-list .grid-avoid { margin: 10px 0 0; padding-top: 9px; border-top: 1px solid var(--line); color: var(--text); }
.grid-tip-list .grid-avoid::marker { color: var(--warm); }
.grid-tip-list .grid-avoid b { color: var(--warm); }
.modal-grid-heading { display: flex; justify-content: space-between; gap: 20px; align-items: baseline; margin: 20px 0 10px; padding-top: 18px; border-top: 1px solid #3c4643; color: #fff; }
.modal-grid-heading span { color: #aeb7b2; font-size: 12px; }
.diagram-modal .nine-grid-svg { min-width: 760px; }

@media (max-width: 900px) {
  .grid-principles { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .grid-principles article { grid-template-columns: 128px 1fr; gap: 14px; padding: 14px; }
  .grid-principles h3 { font-size: 16px; }.grid-principles p { font-size: 11px; }
  .grid-legend-panel { align-items: flex-start; }.grid-legend-panel > b { flex-basis: 100%; }
  .scene-card:has(details[open]) .scene-diagram { aspect-ratio: 1.45 / 1; }
  .nine-grid-card svg { min-width: 0; }
  .diagram-modal .nine-grid-svg { min-width: 0; width: 100%; }
  .modal-grid-heading { display: grid; }.modal-grid-heading span { font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}

/* Source-informed visual lessons */
.metering-grid { display: grid; grid-template-columns: .9fr 1.25fr; gap: 16px; }
.meter-card, .histogram-card { padding: 25px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.meter-card h3, .histogram-card h3 { margin: 0 0 18px; }
.ev-scale { display: grid; grid-template-columns: repeat(5, 1fr); align-items: center; overflow: hidden; margin-bottom: 18px; border-radius: 10px; background: linear-gradient(90deg, #111 0%, #777 50%, #fff 100%); color: #fff; font: 800 11px/38px monospace; text-align: center; }
.ev-scale b { height: 100%; color: #111; background: var(--accent); }
.ev-scale span:last-child { color: #111; }
.meter-list { display: grid; gap: 7px; margin: 0; }
.meter-list div { display: grid; grid-template-columns: 1fr auto; gap: 14px; padding: 10px 12px; border-radius: 10px; background: var(--surface-2); }
.meter-list dt { color: var(--muted); font-size: 12px; }
.meter-list dd { margin: 0; color: var(--text); font-size: 12px; font-weight: 850; text-align: right; }
.histograms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.histograms > div { display: grid; gap: 4px; padding: 12px; border-radius: 13px; background: var(--surface-2); }
.histograms svg { width: 100%; color: var(--accent-2); }
.histograms svg > path:first-child { fill: currentColor; opacity: .65; }
.histograms .edge { fill: none; stroke: var(--muted); stroke-width: 2; }
.histograms .danger { fill: none; stroke: var(--danger); stroke-width: 5; }
.histograms b { font-size: 13px; }
.histograms span { color: var(--muted); font-size: 11px; line-height: 1.55; }
.zone-strip { display: grid; grid-template-columns: repeat(7, 1fr); overflow: hidden; margin-top: 16px; border: 1px solid var(--line); border-radius: 15px; }
.zone-strip div { min-height: 82px; display: grid; align-content: end; padding: 10px; background: hsl(70 6% calc(7% + var(--z, 0%))); color: #fff; }
.zone-strip div:nth-child(1) { background: #090a09; }.zone-strip div:nth-child(2) { background: #272925; }.zone-strip div:nth-child(3) { background: #4b4e48; }.zone-strip div:nth-child(4) { background: #777b72; }.zone-strip div:nth-child(5) { background: #a6aaa0; color: #111; }.zone-strip div:nth-child(6) { background: #d2d5ce; color: #111; }.zone-strip div:nth-child(7) { background: #f4f5f1; color: #111; }
.zone-strip small, .zone-strip b { display: block; }.zone-strip small { font: 800 10px/1 monospace; opacity: .75; }.zone-strip b { font-size: 11px; }
.section-footnote { margin: 15px 0 0; padding: 14px 17px; border-left: 3px solid var(--accent); background: color-mix(in srgb, var(--accent) 6%, var(--surface)); color: var(--muted); font-size: 13px; }
.section-footnote b { color: var(--text); }

.light-map { position: relative; min-height: 360px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 9%, var(--surface)), var(--surface) 55%); }
.light-map svg { position: absolute; inset: 15px; width: calc(100% - 30px); height: calc(100% - 30px); }
.light-map svg path { fill: none; stroke: #f6dc62; stroke-width: 5; marker-end: url(#la); }
.light-map svg marker path { fill: #f6dc62; stroke: none; }
.light-subject, .light-node { position: absolute; z-index: 2; display: grid; text-align: center; }
.light-subject { left: 50%; top: 50%; transform: translate(-50%, -50%); place-items: center; }
.light-subject img { width: 94px; height: 112px; border: 2px solid color-mix(in srgb, var(--accent) 48%, var(--line)); border-radius: 48% 48% 42% 42%; object-fit: cover; object-position: 66% 28%; box-shadow: 0 12px 34px rgb(0 0 0 / .28); }
.light-subject b { margin-top: 8px; }.light-subject span { color: var(--muted); font-size: 10px; }
.light-node { width: 150px; padding: 12px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-2); }
.light-node b { font-size: 13px; }.light-node span { color: var(--muted); font-size: 10px; }
.light-node.front { left: 50%; top: 20px; transform: translateX(-50%); }.light-node.three { right: 25px; top: 48px; }.light-node.side { right: 20px; bottom: 48px; }.light-node.back { left: 50%; bottom: 18px; transform: translateX(-50%); }
.setup-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.setup-grid article { position: relative; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.setup-grid h3 { margin: 2px 0 8px; }.setup-grid p { color: var(--muted); font-size: 13px; }.setup-grid small { display: block; margin-top: 12px; color: var(--muted); line-height: 1.55; }
.setup-no { color: var(--accent); font: 900 11px/1 monospace; }
.mini-plan { position: relative; height: 110px; overflow: hidden; border-radius: 12px; background: var(--surface-2); }
.mini-plan .window { position: absolute; left: 18px; top: 12px; bottom: 12px; width: 13px; background: var(--accent-2); box-shadow: 0 0 25px color-mix(in srgb, var(--accent-2) 70%, transparent); }
.mini-plan .beam { position: absolute; left: 30px; top: 15px; width: 150px; height: 80px; background: linear-gradient(100deg, rgb(246 220 98 / .4), transparent); clip-path: polygon(0 0, 100% 35%, 100% 70%, 0 100%); }
.mini-plan .head { position: absolute; z-index: 2; left: 43%; top: 18px; width: 82px; height: 76px; border: 2px solid var(--accent); border-radius: 12px; object-fit: cover; object-position: 65% 28%; }
.mini-plan .camera { position: absolute; right: 20px; bottom: 15px; width: 38px; height: 24px; border-radius: 4px; background: var(--accent-2); transform: rotate(-55deg); }
.mini-plan .reflector { position: absolute; right: 34px; top: 14px; width: 9px; height: 52px; background: #fff; transform: rotate(20deg); }
.ratio-bars { display: grid; gap: 13px; margin-top: 22px; }.ratio-bars span { display: grid; grid-template-columns: 1fr 58px; align-items: center; gap: 9px; color: var(--muted); font-size: 11px; }.ratio-bars i { width: var(--v); max-width: 100%; height: 16px; border-radius: 99px; background: #f6dc62; box-shadow: 0 0 16px rgb(246 220 98 / .25); }
.distance-demo { display: flex; align-items: center; gap: 8px; margin-top: 26px; color: var(--muted); font-size: 10px; }.distance-demo .lamp { color: #f6dc62; font-size: 35px; }.distance-demo i { flex: 1; height: 2px; background: linear-gradient(90deg, #f6dc62, var(--line)); }.distance-demo b { color: var(--text); }
.pose-board { display: grid; grid-template-columns: .78fr 1.22fr; gap: 28px; margin-top: 16px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.pose-copy h3 { margin: 5px 0 15px; font-size: 29px; }.pose-copy ol { margin: 0; padding-left: 20px; }.pose-copy li { margin-bottom: 8px; color: var(--muted); }.pose-copy li b { color: var(--text); }
.pose-figure { position: relative; min-height: 390px; overflow: hidden; border-radius: 17px; background: linear-gradient(145deg, var(--surface-2), color-mix(in srgb, var(--accent-2) 8%, var(--surface-2))); }
.pose-head, .pose-body, .pose-arm, .pose-leg { position: absolute; display: block; background: var(--warm); }
.pose-head { left: calc(50% - 33px); top: 38px; width: 66px; height: 78px; border-radius: 48% 48% 44% 44%; transform: rotate(-5deg); }
.pose-body { left: calc(50% - 49px); top: 109px; width: 98px; height: 143px; border-radius: 40px 40px 25px 25px; transform: skew(-5deg); }
.pose-arm { top: 130px; width: 25px; height: 138px; border-radius: 20px; transform-origin: top; }.pose-arm.left { left: calc(50% - 54px); transform: rotate(12deg); }.pose-arm.right { left: calc(50% + 31px); transform: rotate(-20deg); }
.pose-leg { top: 235px; width: 34px; height: 135px; border-radius: 0 0 18px 18px; transform-origin: top; }.pose-leg.weight { left: calc(50% - 36px); transform: rotate(3deg); }.pose-leg.relax { left: calc(50% + 4px); transform: rotate(-11deg); }
.pose-figure i { position: absolute; padding: 5px 8px; border-radius: 8px; background: var(--bg); color: var(--text); font-size: 10px; font-style: normal; }.chin-line { top: 58px; right: 12px; }.shoulder-line { top: 133px; left: 8px; }.weight-line { bottom: 20px; left: 15px; }
.pose-figure i::after { content: ''; position: absolute; width: 45px; border-top: 1px solid var(--accent); }.chin-line::after { right: 100%; top: 50%; }.shoulder-line::after { left: 100%; top: 50%; }.weight-line::after { left: 100%; top: 50%; }
.pose-library-head { display: grid; grid-template-columns: 1fr minmax(280px, .8fr); gap: 24px; align-items: end; margin-top: 28px; }
.pose-library-head h3 { margin: 4px 0 0; font-size: clamp(25px, 3vw, 37px); }
.pose-library-head > p { margin: 0; color: var(--muted); font-size: 12px; }
.pose-library { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; margin-top: 16px; }
.pose-library article { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); }
.pose-library img { display: block; width: 100%; aspect-ratio: 3 / 2; object-fit: cover; filter: saturate(.94) contrast(1.02); }
.pose-library article > span { position: absolute; top: 10px; left: 10px; padding: 5px 7px; border-radius: 999px; background: rgb(5 10 9 / .78); color: var(--accent); font: 900 9px/1 monospace; }
.pose-library h4 { margin: 13px 15px 4px; font-size: 16px; }
.pose-library p { margin: 0 15px 16px; color: var(--muted); font-size: 10px; line-height: 1.55; }
.pose-checklist { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 13px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.pose-checklist b { margin-right: 6px; }
.pose-checklist span { padding: 5px 9px; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 10px; }

.travel-section { position: relative; }
.travel-section::before { content: ""; position: absolute; z-index: -1; inset: 34px -28px auto; height: 280px; border-radius: 34px; background: radial-gradient(circle at 18% 15%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 45%), linear-gradient(135deg, color-mix(in srgb, var(--surface-2) 92%, transparent), transparent); pointer-events: none; }
.travel-decision { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.travel-decision article { min-height: 172px; padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.travel-decision span { display: inline-grid; place-items: center; width: 28px; height: 28px; margin-bottom: 14px; border-radius: 50%; background: var(--accent); color: #111; font: 900 10px/1 monospace; }
.travel-decision b { display: block; margin-bottom: 8px; font-size: 15px; }
.travel-decision p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.travel-distance-rule { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin: 16px 0 30px; overflow: hidden; border: 1px solid var(--line); border-radius: 17px; background: var(--line); }
.travel-distance-rule div { display: grid; gap: 5px; padding: 16px; background: var(--surface-2); }
.travel-distance-rule small { color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.travel-distance-rule b { color: var(--accent); font-size: 13px; }
.travel-distance-rule span { color: var(--muted); font-size: 9px; }
.travel-guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.travel-guide-card { overflow: hidden; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); }
.travel-guide-photo { position: relative; overflow: hidden; aspect-ratio: 3 / 2; background: #18211f; }
.travel-guide-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }
.travel-guide-photo > b { position: absolute; top: 12px; left: 12px; padding: 7px 9px; border-radius: 999px; background: rgb(5 10 9 / .82); color: var(--accent); font: 900 10px/1 monospace; }
.travel-guide-card > div:last-child { display: grid; gap: 7px; padding: 18px; }
.travel-guide-card p { margin: 0; color: var(--accent); font: 800 9px/1.2 monospace; letter-spacing: .08em; text-transform: uppercase; }
.travel-guide-card h3 { margin: 0 0 3px; font-size: 19px; }
.travel-guide-card span { color: var(--muted); font-size: 10px; line-height: 1.65; }
.travel-guide-card span strong { color: var(--text); }
.travel-guide-card small { margin-top: 3px; color: var(--accent); font-size: 10px; }
.travel-gap-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 20px; }
.travel-gap-notes article { padding: 15px 17px; border: 1px dashed var(--line); border-radius: 14px; background: color-mix(in srgb, var(--surface) 80%, transparent); }
.travel-gap-notes b { font-size: 12px; }
.travel-gap-notes p { margin: 5px 0 0; color: var(--muted); font-size: 10px; line-height: 1.6; }

.material-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.material-grid article { padding: 20px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }.material-grid h3 { margin: 16px 0 5px; }.material-grid p { margin: 0; color: var(--muted); font-size: 13px; }.material-grid small { display: block; margin-top: 12px; color: var(--text); }
.material-diagram { position: relative; height: 170px; overflow: hidden; border-radius: 13px; background: var(--surface-2); }.material-diagram .source { position: absolute; left: 18px; top: 28px; width: 20px; height: 105px; background: #fff6cf; box-shadow: 0 0 20px rgb(246 220 98 / .5); }.material-diagram .object { position: absolute; left: 55%; top: 48px; width: 72px; height: 80px; transform: translateX(-50%); background: var(--warm); }.material-diagram i { position: absolute; left: 39px; top: 54px; width: 48%; height: 70px; background: linear-gradient(90deg, rgb(246 220 98 / .45), transparent); clip-path: polygon(0 0, 100% 28%, 100% 72%, 0 100%); }.material-diagram.reflective .object { border-radius: 50%; background: linear-gradient(100deg, #26302f 15%, #eef5ef 35%, #77827d 48%, #f6f8f4 62%, #273130 80%); }.material-diagram.reflective em { position: absolute; right: 22px; top: 20px; width: 28px; height: 125px; border-radius: 6px; background: #fff; transform: rotate(8deg); }.material-diagram.transparent .source { left: 50%; top: 18px; width: 130px; height: 115px; transform: translateX(-50%); opacity: .8; }.material-diagram.transparent .object { z-index: 2; top: 44px; border: 3px solid #c7ecf2; border-radius: 10px 10px 24px 24px; background: rgb(127 209 222 / .13); }.material-diagram.transparent i { left: 50%; top: 35px; width: 100px; height: 100px; transform: translateX(-50%); background: rgb(246 220 98 / .35); clip-path: none; filter: blur(12px); }.material-diagram.transparent em { position: absolute; z-index: 3; left: calc(55% - 48px); top: 48px; width: 5px; height: 70px; background: #111; box-shadow: 91px 0 #111; }
.build-order { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; margin-top: 16px; padding: 18px; border: 1px dashed var(--line); border-radius: 15px; color: var(--muted); font-size: 12px; }.build-order b { color: var(--accent); }.build-order i { color: var(--accent); font-style: normal; }

.curve-section { margin-top: 18px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }.curve-intro { display: grid; grid-template-columns: 1fr 1.1fr; gap: 20px; align-items: end; }.curve-intro h3 { margin: 4px 0 0; font-size: 28px; }.curve-intro p:last-child { margin: 0; color: var(--muted); font-size: 13px; }
.curve-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }.curve-grid article { padding: 16px; border-radius: 14px; background: var(--surface-2); }.curve-grid svg { width: 100%; height: 130px; }.curve-grid .curve-gridline { fill: none; stroke: var(--line); stroke-width: 1; }.curve-grid .curve-ref { fill: none; stroke: var(--muted); stroke-width: 1; stroke-dasharray: 4 4; }.curve-grid .curve-line { fill: none; stroke: var(--accent); stroke-width: 4; }.curve-grid circle { fill: var(--surface); stroke: var(--accent); stroke-width: 3; }.curve-grid h4 { margin: 8px 0 4px; }.curve-grid p { margin: 0; color: var(--muted); font-size: 12px; }
.color-pipeline { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 10px; align-items: stretch; margin-top: 18px; }.color-pipeline > div { display: grid; align-content: center; min-height: 116px; padding: 14px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }.color-pipeline > i { align-self: center; color: var(--accent); font-style: normal; }.color-pipeline small { color: var(--accent-2); }.color-pipeline b { font-size: 13px; }.color-pipeline span { color: var(--muted); font-size: 10px; }
.source-notes { margin-top: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }.source-notes > summary { display: grid; grid-template-columns: 1fr auto; align-items: center; padding: 22px; cursor: pointer; list-style: none; }.source-notes > summary::-webkit-details-marker { display: none; }.source-notes summary b, .source-notes summary small { display: block; }.source-notes summary small { color: var(--muted); }.source-notes summary i { color: var(--accent); font-size: 23px; font-style: normal; transition: transform .2s ease; }.source-notes[open] summary i { transform: rotate(45deg); }.source-notes > div { padding: 0 22px 22px; color: var(--muted); }.source-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }.source-groups section { padding: 15px; border-radius: 13px; background: var(--surface-2); }.source-groups h3 { margin: 0 0 4px; color: var(--text); font-size: 14px; }.source-groups p { margin: 0; font-size: 12px; }.source-caveat { padding: 13px; border-left: 3px solid var(--warm); background: color-mix(in srgb, var(--warm) 7%, var(--surface-2)); font-size: 12px; }

@media (max-width: 900px) {
  .metering-grid, .pose-board { grid-template-columns: 1fr; }
  .setup-grid, .material-grid { grid-template-columns: 1fr 1fr; }
  .setup-grid article:last-child, .material-grid article:last-child { grid-column: 1 / -1; }
  .color-pipeline { grid-template-columns: 1fr; }.color-pipeline > i { justify-self: center; transform: rotate(90deg); }
  .travel-decision, .travel-distance-rule { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .travel-gap-notes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .meter-card, .histogram-card, .curve-section { padding: 18px; }
  .meter-list div { grid-template-columns: 1fr; gap: 2px; }.meter-list dd { text-align: left; }
  .histograms { grid-template-columns: 1fr; }.histograms > div { grid-template-columns: 110px 1fr; align-items: center; }.histograms svg { grid-row: 1 / 3; }.histograms span { grid-column: 2; }
  .zone-strip { grid-template-columns: repeat(7, 74px); overflow-x: auto; }.zone-strip div { min-height: 94px; }
  .light-map { min-height: 500px; }.light-map svg { transform: rotate(25deg) scale(.75); }.light-node.front { top: 15px; }.light-node.three { right: 10px; top: 100px; }.light-node.side { right: 10px; bottom: 94px; }.light-node.back { bottom: 12px; }
  .setup-grid, .material-grid { grid-template-columns: 1fr; }.setup-grid article:last-child, .material-grid article:last-child { grid-column: auto; }
  .pose-board { padding: 18px; }.pose-copy h3 { font-size: 24px; }.pose-figure { min-height: 360px; }
  .pose-library-head { grid-template-columns: 1fr; gap: 10px; }
  .pose-library { grid-template-columns: 1fr; }
  .travel-guide-grid { grid-template-columns: 1fr; }
  .curve-intro { grid-template-columns: 1fr; }.curve-grid { grid-template-columns: 1fr; }.curve-grid svg { height: 115px; }
  .source-groups { grid-template-columns: 1fr; }.build-order { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .travel-decision, .travel-distance-rule, .travel-gap-notes { grid-template-columns: 1fr; }
  .travel-decision article { min-height: auto; }
  .travel-guide-card h3 { font-size: 17px; }
}

@media print {
  .meter-card, .histogram-card, .light-map, .setup-grid article, .pose-board, .travel-guide-card, .material-grid article, .curve-section, .source-notes { break-inside: avoid; }
  .source-notes > div { display: block !important; }
}

/* First-shot recipes and composition library */
.first-shot-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.first-shot-flow article { min-height: 200px; padding: 22px; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.first-shot-flow article > span { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #111; font: 900 11px/1 monospace; }
.first-shot-flow h3 { margin: 20px 0 7px; font-size: 18px; }
.first-shot-flow p { margin: 0; color: var(--muted); font-size: 12px; }
.priority-board { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 16px; }
.priority-board article { padding: 19px; border-radius: 16px; background: var(--surface-2); }
.priority-board small, .priority-board b { display: block; }
.priority-board small { color: var(--accent-2); font-size: 10px; font-weight: 850; letter-spacing: .08em; }
.priority-board b { margin-top: 5px; font-size: 15px; }
.priority-board p { margin: 7px 0 0; color: var(--muted); font-size: 12px; }
.camera-feature-note { display: grid; grid-template-columns: .75fr 1.25fr; gap: 28px; align-items: center; margin-top: 16px; padding: 23px; border: 1px solid color-mix(in srgb, var(--accent-2) 45%, var(--line)); border-radius: 18px; background: var(--surface); }
.camera-feature-note h3 { margin: 4px 0 0; }
.camera-feature-note > p { margin: 0; color: var(--muted); font-size: 13px; }
.camera-feature-note b { color: var(--text); }

.composition-library { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.composition-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: var(--surface); }
.composition-card .composition-svg { width: 100%; aspect-ratio: 8 / 5; border-bottom: 1px solid var(--line); }
.composition-card > div { padding: 17px; }
.composition-card h3 { margin: 0 0 6px; font-size: 17px; }
.composition-card p { min-height: 4.8em; margin: 0; color: var(--muted); font-size: 12px; }
.composition-card span { display: block; margin-top: 11px; padding-top: 9px; border-top: 1px solid var(--line); color: var(--accent-2); font-size: 10px; }
.composition-selector { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; padding: 17px; border: 1px dashed var(--line); border-radius: 15px; background: var(--surface); }
.composition-selector b { flex-basis: 100%; font-size: 13px; }
.composition-selector span { padding: 5px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 11px; }

.ready-recipe { margin: 0 20px 20px; padding: 20px; border: 1px solid color-mix(in srgb, var(--accent) 44%, var(--line)); border-radius: 16px; background: color-mix(in srgb, var(--accent) 4%, var(--surface-2)); }
.recipe-head { display: flex; justify-content: space-between; gap: 18px; align-items: start; }
.recipe-head h4 { margin: 2px 0 0; font-size: 18px; }
.recipe-kicker { color: var(--accent); font-size: 9px; font-weight: 900; letter-spacing: .14em; }
.recipe-badge { display: grid; place-items: center; flex: 0 0 38px; height: 38px; border-radius: 50%; background: var(--accent); color: #111; font: 900 11px/1 monospace; }
.recipe-start-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-top: 15px; }
.recipe-start-grid > div { min-width: 0; padding: 10px; border-radius: 10px; background: var(--bg); }
.recipe-start-grid small, .recipe-start-grid b { display: block; }
.recipe-start-grid small { color: var(--muted); font-size: 9px; letter-spacing: .06em; }
.recipe-start-grid b { margin-top: 2px; font-size: 12px; font-variant-numeric: tabular-nums; }
.recipe-range-wrap h5, .recipe-shifts h5 { margin: 18px 0 8px; font-size: 12px; }
.recipe-table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
.recipe-range-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 11px; }
.recipe-range-table th, .recipe-range-table td { padding: 9px 11px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.recipe-range-table tr:last-child th, .recipe-range-table tr:last-child td { border-bottom: 0; }
.recipe-range-table thead th { background: var(--bg); color: var(--muted); font-size: 9px; letter-spacing: .06em; }
.recipe-range-table tbody th { width: 18%; color: var(--accent-2); }
.recipe-range-table tbody td:last-child { color: var(--muted); }
.recipe-range-table b { color: var(--text); font-variant-numeric: tabular-nums; }
.recipe-shifts ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin: 0; padding: 0; list-style: none; }
.recipe-shifts li { display: grid; gap: 4px; margin: 0; padding: 10px; border-radius: 10px; background: var(--surface); font-size: 11px; }
.recipe-shifts li span { color: var(--muted); }
.recipe-shifts li b { color: var(--text); }
.recipe-check { margin: 12px 0 0; padding: 11px 12px; border-left: 3px solid var(--accent); background: var(--surface); color: var(--muted); font-size: 11px; }
.recipe-check b { color: var(--text); }

.scene-composition-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 9px; }
.scene-composition-mini { overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface-2); }
.scene-composition-mini .composition-svg { width: 100%; border-bottom: 1px solid var(--line); }
.scene-composition-mini > div { padding: 10px; }
.scene-composition-mini b { font-size: 11px; }
.scene-composition-mini p { margin: 4px 0 0; color: var(--muted); font-size: 10px; line-height: 1.55; }

@media (max-width: 900px) {
  .first-shot-flow, .composition-library { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .priority-board { grid-template-columns: 1fr; }
  .camera-feature-note { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 720px) {
  .first-shot-flow, .composition-library { grid-template-columns: 1fr; }
  .first-shot-flow article { min-height: 0; }
  .composition-card { display: grid; grid-template-columns: 132px 1fr; }
  .composition-card .composition-svg { height: 100%; min-height: 150px; object-fit: cover; border-right: 1px solid var(--line); border-bottom: 0; }
  .composition-card p { min-height: 0; }
  .ready-recipe { margin-inline: 16px; padding: 15px; }
  .recipe-start-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .recipe-shifts ul, .scene-composition-grid { grid-template-columns: 1fr; }
  .scene-composition-mini { display: grid; grid-template-columns: 130px 1fr; }
  .scene-composition-mini .composition-svg { height: 100%; border-right: 1px solid var(--line); border-bottom: 0; }
}

@media print {
  .first-shot-flow article, .composition-card, .ready-recipe, .scene-composition-mini { break-inside: avoid; }
  .recipe-table-scroll { overflow: visible; }
  .recipe-range-table { min-width: 0; }
}