:root {
  --paper: #f3f3ed;
  --paper-strong: #fbfbf7;
  --ink: #101516;
  --muted: #66706a;
  --line: #c8cec9;
  --green: #92e35b;
  --green-soft: #dff8ce;
  --blue: #2356f6;
  --orange: #ff6846;
  --display: "Arial Black", "Microsoft YaHei", "PingFang SC", sans-serif;
  --body: Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: Bahnschrift, Consolas, "SFMono-Regular", monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--body); -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .32; background-image: radial-gradient(rgba(16,21,22,.18) .55px, transparent .55px); background-size: 10px 10px; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
ul, ol, dl { margin: 0; padding: 0; }
li { list-style: none; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 40; height: 94px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 clamp(26px, 5vw, 92px); border-bottom: 1px solid rgba(16,21,22,.14); background: rgba(243,243,237,.88); backdrop-filter: blur(18px); transition: transform .35s ease, background .25s ease; }
.site-header.inner { position: sticky; }
.site-header.is-hidden { transform: translateY(-100%); }
.brand { display: inline-flex; width: 182px; justify-self: start; align-items: center; }
.brand img { display: block; width: 100%; height: auto; }
.main-nav { display: flex; justify-self: center; align-items: center; gap: clamp(42px, 5vw, 82px); font-size: 15px; font-weight: 800; }
.main-nav a { position: relative; padding: 8px 2px; white-space: nowrap; }
.main-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 3px; background: var(--blue); transition: right .22s ease; }
.main-nav a:hover::after, .main-nav a:focus-visible::after, .main-nav a.is-active::after { right: 0; }
.login-button { justify-self: end; min-width: 108px; height: 48px; border: 2px solid var(--ink); border-radius: 4px; background: transparent; font-weight: 900; cursor: pointer; transition: transform .2s ease, background .2s ease, color .2s ease; }
.login-button:hover, .login-button:focus-visible { background: var(--ink); color: var(--paper); transform: translateY(-2px); }

.lab-hero { min-height: 100svh; display: grid; grid-template-columns: minmax(0,.84fr) minmax(560px,1.16fr); align-items: center; gap: clamp(42px, 5vw, 96px); padding: 142px clamp(26px, 5vw, 92px) 72px; }
.hero-copy { align-self: center; max-width: 720px; }
.event-badge { display: inline-flex; align-items: center; min-height: 38px; padding: 0 16px; border: 2px solid var(--ink); border-radius: 999px; background: var(--green); color: var(--ink); font-family: var(--mono); font-size: 13px; font-weight: 900; letter-spacing: .03em; }
.hero-copy h1 { margin-top: 34px; font-family: var(--display); font-size: clamp(62px, 6vw, 118px); line-height: 1.02; letter-spacing: -.065em; }
.hero-copy h1 span { display: block; }
.hero-copy h1 span:nth-child(2) { color: var(--blue); }
.hero-lead { max-width: 620px; margin-top: 30px; color: #46504a; font-size: clamp(18px, 1.25vw, 23px); line-height: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 26px; margin-top: 38px; }
.primary-action { display: inline-flex; min-height: 58px; align-items: center; justify-content: center; padding: 0 30px; border: 2px solid var(--ink); border-radius: 4px; background: var(--ink); color: var(--paper); font-weight: 900; cursor: pointer; box-shadow: 7px 7px 0 var(--green); transition: transform .2s ease, box-shadow .2s ease; }
.primary-action:hover, .primary-action:focus-visible { transform: translate(-2px,-2px); box-shadow: 10px 10px 0 var(--green); }
.secondary-action, .text-action { display: inline-flex; align-items: center; gap: 14px; font-weight: 900; border-bottom: 2px solid var(--ink); padding: 10px 0 7px; }
.secondary-action::after, .text-action::after { content: ""; width: 9px; height: 9px; border-top: 2px solid; border-right: 2px solid; transform: rotate(45deg); }
.hero-note { display: flex; align-items: baseline; gap: 18px; margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 13px; }
.hero-note span { color: var(--muted); }
.hero-note strong { letter-spacing: .06em; }

.model-lab { --tilt-x: 0deg; --tilt-y: 0deg; --light-x: 50%; --light-y: 44%; --model-shift: 0px; --model-rotate: 0deg; position: relative; align-self: center; min-width: 0; padding-bottom: 34px; transform: perspective(1400px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)); transform-style: preserve-3d; transition: transform .22s cubic-bezier(.2,.7,.2,1); }
.sculpture-stage { position: relative; min-height: clamp(600px, 39vw, 760px); overflow: hidden; isolation: isolate; border: 1px solid rgba(16,21,22,.16); border-radius: 42px; background: #f7f6f1; box-shadow: 0 32px 90px rgba(27,35,31,.12), inset 0 1px 0 rgba(255,255,255,.8); }
.sculpture-stage::before { content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none; background: radial-gradient(circle at var(--light-x) var(--light-y), rgba(255,255,255,.02) 0 18%, rgba(255,255,255,.54) 46%, rgba(243,243,237,.82) 100%); mix-blend-mode: screen; }
.sculpture-stage::after { content: ""; position: absolute; inset: 20px; z-index: 6; pointer-events: none; border: 1px solid rgba(16,21,22,.08); border-radius: 28px; }
.sculpture-aura { position: absolute; inset: 12% 2% 4% 14%; z-index: 0; border-radius: 50%; background: radial-gradient(ellipse, rgba(35,86,246,.12), rgba(146,227,91,.05) 42%, transparent 70%); filter: blur(32px); }
.sculpture-image { position: absolute; z-index: 1; top: 0; left: -23%; width: 148%; max-width: none; height: 100%; object-fit: cover; object-position: center; filter: saturate(.96) contrast(1.03); transform: translate3d(var(--model-shift),0,38px) rotate(var(--model-rotate)) scale(1.015); transform-origin: 62% 48%; transition: transform .28s cubic-bezier(.2,.7,.2,1), filter .28s ease; }
.sculpture-mark { position: absolute; z-index: 8; top: 46px; left: 50px; display: grid; gap: 4px; color: var(--ink); font-family: var(--mono); }
.sculpture-mark span { font-size: 10px; font-weight: 900; letter-spacing: .17em; }
.sculpture-mark strong { font-family: var(--display); font-size: clamp(46px,4.6vw,82px); line-height: .9; letter-spacing: -.08em; }
.sculpture-label { position: absolute; z-index: 8; display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 9px; font-weight: 900; letter-spacing: .14em; }
.sculpture-label i { width: 6px; height: 6px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(35,86,246,.12); }
.label-observe { left: 9%; top: 49%; }.label-fit { right: 11%; top: 25%; }.label-validate { right: 7%; bottom: 18%; }
.label-fit i { background: var(--green); box-shadow: 0 0 0 5px rgba(146,227,91,.16); }.label-validate i { background: var(--orange); box-shadow: 0 0 0 5px rgba(255,104,70,.13); }
.measurement-layer { position: absolute; inset: 0; z-index: 7; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.measurement-axis { fill: none; stroke: rgba(16,21,22,.2); stroke-width: 1; stroke-dasharray: 2 12; }
.measurement-curve { fill: none; stroke: rgba(35,86,246,.76); stroke-width: 2.2; stroke-linecap: round; }
.measurement-layer [data-sample-points] circle { fill: var(--paper-strong); stroke: rgba(16,21,22,.72); stroke-width: 1.5; }
.prediction-point { fill: var(--orange); stroke: #fff; stroke-width: 3; filter: drop-shadow(0 4px 8px rgba(255,104,70,.28)); }
.model-probe { position: absolute; z-index: 9; left: 58%; top: 38%; width: 76px; height: 76px; transform: translate3d(var(--probe-x,0),var(--probe-y,0),70px); transition: transform .28s cubic-bezier(.2,.7,.2,1); }
.model-probe::before, .model-probe::after { content: ""; position: absolute; background: rgba(16,21,22,.38); }
.model-probe::before { left: 50%; top: -26px; width: 1px; height: 128px; }.model-probe::after { left: -26px; top: 50%; width: 128px; height: 1px; }
.model-probe span { position: absolute; inset: 0; border: 1px solid rgba(16,21,22,.48); border-radius: 50%; box-shadow: inset 0 0 0 10px rgba(255,255,255,.22); }
.model-probe span::after { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--orange); transform: translate(-50%,-50%); box-shadow: 0 0 0 6px rgba(255,255,255,.8); }
.sculpture-control { position: relative; z-index: 12; width: calc(100% - 104px); margin: -58px auto 0; padding: 22px 28px 24px; border: 1px solid rgba(16,21,22,.16); border-radius: 20px; background: rgba(251,251,247,.82); box-shadow: 0 26px 70px rgba(24,32,28,.13); backdrop-filter: blur(24px) saturate(1.08); }
.control-heading { display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-weight: 900; }
.control-heading strong { display: inline-flex; align-items: center; gap: 8px; color: var(--blue); font-family: var(--mono); font-size: 12px; }
.control-heading strong::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(146,227,91,.14); }
.sculpture-control input[type="range"] { width: 100%; height: 2px; margin: 24px 0 22px; border-radius: 99px; accent-color: var(--blue); cursor: ew-resize; }
.sculpture-readouts { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.sculpture-readouts span { display: flex; justify-content: space-between; align-items: baseline; padding-top: 12px; border-top: 1px solid rgba(16,21,22,.14); color: var(--muted); font-family: var(--mono); font-size: 10px; }
.sculpture-readouts strong { color: var(--ink); font-size: 15px; }

.method-strip { min-height: 108px; display: flex; align-items: center; justify-content: center; gap: clamp(18px,3vw,56px); padding: 24px clamp(20px,4vw,72px); border-top: 2px solid var(--ink); border-bottom: 2px solid var(--ink); background: var(--green); font-weight: 950; }
.method-strip i { width: clamp(28px,4vw,70px); height: 2px; position: relative; background: var(--ink); }
.method-strip i::after { content: ""; position: absolute; right: 0; top: -4px; width: 8px; height: 8px; border-top: 2px solid var(--ink); border-right: 2px solid var(--ink); transform: rotate(45deg); }

.section-kicker { font-family: var(--mono); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.section-heading { display: grid; grid-template-columns: minmax(120px,.35fr) minmax(0,1fr); gap: 26px clamp(32px,6vw,100px); align-items: start; }
.section-heading h2 { max-width: 940px; font-family: var(--display); font-size: clamp(46px,5vw,88px); line-height: 1.08; letter-spacing: -.045em; }
.section-heading > p:last-child { grid-column: 2; max-width: 720px; color: var(--muted); font-size: 18px; line-height: 1.75; }

.dark-chapter { padding: clamp(90px,10vw,150px) clamp(26px,5vw,92px); background: var(--ink); color: var(--paper); }
.dark-chapter .chapter-heading { display: grid; grid-template-columns: .35fr 1fr; gap: clamp(32px,6vw,100px); align-items: start; }
.dark-chapter h2 { max-width: 1100px; font-family: var(--display); font-size: clamp(48px,5.4vw,98px); line-height: 1.06; letter-spacing: -.045em; }
.dark-chapter .section-kicker { color: var(--green); }
.chapter-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 2px; margin-top: 80px; background: #4c5450; border: 2px solid #4c5450; }
.chapter-card { min-height: 440px; display: flex; flex-direction: column; padding: clamp(28px,3vw,48px); background: var(--ink); transition: background .25s ease, color .25s ease; }
.chapter-card:hover { background: var(--paper); color: var(--ink); }
.chapter-card > span { color: var(--green); font-family: var(--mono); font-size: 12px; font-weight: 900; letter-spacing: .1em; }
.chapter-card > strong { margin-top: auto; font-family: var(--display); font-size: clamp(64px,6vw,112px); line-height: .95; }
.chapter-card p { margin-top: 28px; color: #b9c1bb; font-size: 17px; line-height: 1.75; }
.chapter-card:hover p { color: var(--muted); }
.chapter-card a { width: max-content; margin-top: 26px; padding-bottom: 6px; border-bottom: 1px solid currentColor; font-weight: 900; }

.grade-section, .direction-section, .course-preview, .fact-section, .triad-section, .official-directions, .official-process, .course-plan-section, .course-steps, .outline-section, .faculty-section { padding: clamp(90px,10vw,150px) clamp(26px,5vw,92px); }
.grade-workbench { margin-top: 60px; border: 3px solid var(--ink); background: var(--paper-strong); box-shadow: 12px 12px 0 var(--blue); }
.grade-tabs { display: grid; grid-template-columns: repeat(4,1fr); border-bottom: 2px solid var(--ink); }
.grade-tabs button { min-height: 68px; border: 0; border-right: 1px solid var(--ink); background: transparent; font-weight: 900; cursor: pointer; }
.grade-tabs button:last-child { border-right: 0; }
.grade-tabs button.is-active { background: var(--blue); color: #fff; }
.grade-panel { min-height: 390px; display: grid; grid-template-columns: .55fr 1fr; align-content: center; gap: 18px clamp(36px,6vw,100px); padding: clamp(36px,6vw,88px); }
.grade-panel > span { grid-row: 1/4; color: var(--blue); font-family: var(--mono); font-size: 13px; font-weight: 900; }
.grade-panel h3 { font-family: var(--display); font-size: clamp(38px,4vw,72px); line-height: 1.08; letter-spacing: -.035em; }
.grade-panel p { max-width: 800px; color: var(--muted); font-size: 18px; line-height: 1.75; }
.grade-panel ul { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.grade-panel li { padding: 10px 14px; border: 1px solid var(--line); background: var(--paper); font-size: 14px; font-weight: 800; }

.direction-section { border-top: 2px solid var(--ink); background: #e9ece7; }
.direction-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-top: 58px; }
.direction-item { min-height: 128px; border: 2px solid var(--ink); background: var(--paper-strong); }
.direction-item summary { min-height: 124px; display: grid; grid-template-columns: 1fr auto; align-content: center; gap: 10px 18px; padding: 22px; cursor: pointer; list-style: none; }
.direction-item summary::-webkit-details-marker, .official-direction summary::-webkit-details-marker, .outline-item summary::-webkit-details-marker { display: none; }
.direction-item summary span { color: var(--blue); font-family: var(--mono); font-size: 11px; font-weight: 900; }
.direction-item summary strong { grid-column: 1; font-size: 19px; line-height: 1.35; }
.direction-item summary i, .official-direction summary i, .outline-item summary i { grid-column: 2; grid-row: 1/3; align-self: center; width: 30px; height: 30px; position: relative; border: 2px solid var(--ink); border-radius: 50%; }
.direction-item summary i::before, .direction-item summary i::after, .official-direction summary i::before, .official-direction summary i::after, .outline-item summary i::before, .outline-item summary i::after { content: ""; position: absolute; left: 7px; right: 7px; top: 13px; height: 2px; background: var(--ink); }
.direction-item summary i::after, .official-direction summary i::after, .outline-item summary i::after { transform: rotate(90deg); transition: transform .2s ease; }
details[open] summary i::after { transform: rotate(0); }
.direction-item p { padding: 0 22px 24px; color: var(--muted); line-height: 1.7; }
.direction-item[open] { background: var(--green-soft); }

.course-preview { background: var(--paper-strong); }
.course-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; margin-top: 58px; align-items: stretch; }
.course-card { min-height: 500px; display: flex; flex-direction: column; padding: 30px; border: 2px solid var(--ink); background: #fff; outline: none; transition: transform .23s ease, background .23s ease, box-shadow .23s ease; }
.course-card:hover, .course-card:focus, .course-card:focus-within { background: var(--green); transform: translate(-5px,-5px); box-shadow: 10px 10px 0 var(--ink); }
.course-card > p { font-family: var(--mono); font-size: 13px; font-weight: 900; letter-spacing: .12em; }
.course-card h3 { min-height: 3.1em; margin-top: 18px; font-size: clamp(26px,2.2vw,40px); line-height: 1.15; }
.course-card > strong { margin-top: auto; font-family: var(--display); font-size: clamp(58px,5.5vw,96px); line-height: 1; letter-spacing: -.06em; }
.course-grid .course-card:nth-child(3)>strong{font-size:clamp(42px,4vw,66px);white-space:nowrap}
.course-card > strong span { margin-left: 6px; color: var(--blue); font-size: .42em; letter-spacing: 0; }
.course-card > span { margin-top: 10px; color: var(--muted); font-size: 14px; font-weight: 800; }
.course-card ul { display: grid; gap: 12px; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--ink); }
.course-card li { position: relative; padding-left: 18px; line-height: 1.45; }
.course-card li::before { content: ""; position: absolute; left: 0; top: .5em; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.course-card button { margin-top: 28px; min-height: 48px; border: 2px solid var(--ink); background: transparent; font-weight: 900; cursor: pointer; }
.course-card:hover button, .course-card:focus button { background: var(--ink); color: var(--paper); }
.course-preview .text-action { margin-top: 42px; }

.consult-section { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 40px; align-items: end; padding: clamp(72px,8vw,120px) clamp(26px,5vw,92px); border-top: 2px solid var(--ink); background: var(--green); }
.consult-section h2 { max-width: 1080px; margin-top: 18px; font-family: var(--display); font-size: clamp(46px,5.6vw,102px); line-height: 1.06; letter-spacing: -.05em; }
.consult-section p:not(.section-kicker) { max-width: 720px; margin-top: 20px; font-size: 18px; line-height: 1.65; }
.consult-section .primary-action { background: var(--paper); color: var(--ink); box-shadow: 7px 7px 0 var(--blue); }
.site-footer { min-height: 96px; display: grid; grid-template-columns: 180px 1fr; gap: 30px; align-items: center; padding: 24px clamp(26px,5vw,92px); background: var(--ink); color: #8f9992; font-size: 11px; line-height: 1.7; }
.site-footer span { color: var(--paper); font-weight: 900; }
.site-footer p { max-width: 780px; justify-self: end; text-align: right; }

/* Inner hero */
.inner-hero { min-height: 730px; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(390px,.6fr); gap: clamp(50px,8vw,150px); align-items: center; padding: clamp(80px,8vw,130px) clamp(26px,5vw,92px); border-bottom: 2px solid var(--ink); }
.inner-hero-copy { max-width: 1000px; }
.inner-hero h1 { margin-top: 30px; font-family: var(--display); font-size: clamp(62px,6.8vw,124px); line-height: 1.02; letter-spacing: -.06em; }
.inner-hero-copy > p:not(.event-badge) { max-width: 780px; margin-top: 28px; color: var(--muted); font-size: 20px; line-height: 1.75; }
.inner-hero-copy .primary-action { margin-top: 34px; }
.event-coordinate { min-height: 480px; display: flex; flex-direction: column; padding: 30px; border: 3px solid var(--ink); background: var(--blue); color: #fff; box-shadow: 16px 16px 0 var(--green); }
.event-coordinate > span { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; }
.event-coordinate > strong { margin-top: 14px; font-family: var(--display); font-size: clamp(120px,14vw,230px); line-height: .9; letter-spacing: -.08em; }
.event-coordinate dl { display: grid; gap: 14px; margin-top: auto; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.42); }
.event-coordinate dl div { display: grid; grid-template-columns: 90px 1fr; gap: 16px; }
.event-coordinate dt { color: #c8d2ff; }
.event-coordinate dd { margin: 0; font-weight: 900; }

.fact-section { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.fact-card { min-height: 330px; display: flex; flex-direction: column; padding: 30px; border: 2px solid var(--ink); background: var(--paper-strong); }
.fact-card > span { color: var(--blue); font-family: var(--mono); font-size: 12px; font-weight: 900; }
.fact-card h2 { margin-top: auto; font-size: clamp(28px,2.5vw,44px); line-height: 1.15; }
.fact-card p { margin-top: 22px; color: var(--muted); line-height: 1.7; }
[data-course-content]{display:none!important}
.fact-section .facts-heading{grid-column:1/-1;padding:8px 0 20px}
.fact-section .facts-heading>span{color:var(--blue);font-family:var(--mono);font-size:12px;font-weight:900;letter-spacing:.14em}
.fact-section .facts-heading h2{margin:12px 0 0;font-size:clamp(42px,5vw,76px);line-height:1.06}
.fact-section .fact-card{min-height:290px}

.triad-section { background: var(--ink); color: var(--paper); }
.triad-section .section-kicker { color: var(--green); }
.triad-rail { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 58px; }
.triad-card { min-height: 520px; position: relative; overflow: hidden; padding: 30px; border: 1px solid #4d5651; }
.triad-card > span { color: var(--green); font-family: var(--mono); }
.triad-card h3 { margin-top: 24px; font-family: var(--display); font-size: clamp(38px,4vw,68px); }
.triad-card p { max-width: 480px; margin-top: 20px; color: #b8c0bb; line-height: 1.75; }
.mini-diagram { position: absolute; left: 30px; right: 30px; bottom: 30px; height: 190px; border-top: 1px solid #59615d; }
.mini-diagram i { position: absolute; bottom: 20px; width: 36px; border: 2px solid var(--paper); border-radius: 50%; aspect-ratio: 1; }
.mini-diagram i:nth-child(1) { left: 8%; bottom: 32px; }.mini-diagram i:nth-child(2) { left: 43%; bottom: 78px; background: var(--blue); }.mini-diagram i:nth-child(3) { right: 8%; bottom: 118px; background: var(--orange); }
.mini-diagram b { position: absolute; left: 14%; right: 14%; bottom: 54px; height: 2px; background: var(--green); transform: rotate(-14deg); transform-origin: left; }
.mini-diagram.cubes i { border-radius: 3px; transform: rotate(30deg); }.mini-diagram.application b { height: 60px; bottom: 34px; border: 2px solid var(--green); background: transparent; transform: skewX(-20deg); }

.official-directions { background: #e9ece7; }
.official-direction-list { margin-top: 60px; border-top: 2px solid var(--ink); }
.official-direction { border-bottom: 2px solid var(--ink); }
.official-direction summary { display: grid; grid-template-columns: 150px 1fr auto; align-items: center; gap: 24px; min-height: 100px; cursor: pointer; list-style: none; }
.official-direction summary span { color: var(--blue); font-family: var(--mono); font-size: 12px; font-weight: 900; }
.official-direction h3 { font-size: clamp(24px,2.4vw,42px); }
.official-direction summary i { grid-column: 3; grid-row: 1; }
.official-direction > div { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 24px 70px; padding: 4px 54px 36px 174px; }
.official-direction > div p { color: var(--muted); font-size: 17px; line-height: 1.75; }
.official-direction > div strong { color: var(--blue); }
.official-direction > div ul { grid-column: 1/-1; display: flex; flex-wrap: wrap; gap: 10px; }
.official-direction > div li { padding: 10px 14px; border: 1px solid var(--line); background: var(--paper-strong); font-size: 13px; font-weight: 800; }

.official-process { background: var(--paper-strong); }
.process-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; margin-top: 60px; border: 2px solid var(--ink); }
.process-grid article { min-height: 330px; display: flex; flex-direction: column; padding: 28px; border-right: 2px solid var(--ink); }
.process-grid article:last-child { border-right: 0; }
.process-grid b { color: var(--blue); font-family: var(--mono); }
.process-grid h3 { margin-top: auto; font-size: 30px; }
.process-grid p { margin-top: 18px; color: var(--muted); line-height: 1.65; }

/* Courses */
.course-hero { background: var(--ink); color: var(--paper); }
.course-hero .inner-hero-copy > p:not(.event-badge) { color: #b7c0ba; }
.course-blueprint { border: 2px solid #738079; border-radius: 18px; background: var(--blue); overflow: hidden; box-shadow: 16px 16px 0 var(--green); }
.blueprint-head { height: 52px; display: flex; align-items: center; justify-content: space-between; padding: 0 20px; border-bottom: 1px solid #7895ff; font-family: var(--mono); font-size: 11px; }
.course-blueprint svg { display: block; width: 100%; }
.course-grid.large .course-card { min-height: 590px; }
.course-steps { background: var(--blue); color: #fff; }
.course-steps .section-kicker { color: var(--green); }
.step-list { margin-top: 64px; border-top: 1px solid #7692fb; }
.step-list article { display: grid; grid-template-columns: 150px 1fr; gap: 30px; padding: 38px 0; border-bottom: 1px solid #7692fb; }
.step-list article > b { font-family: var(--display); font-size: 58px; color: var(--green); }
.step-list span { font-family: var(--mono); font-size: 12px; color: #c8d2ff; }
.step-list h3 { margin-top: 10px; font-size: clamp(28px,3vw,48px); }
.step-list p { max-width: 780px; margin-top: 14px; color: #d5dcff; line-height: 1.75; }
.outline-section { background: #e9ece7; }
.outline-list { margin-top: 60px; }
.outline-item { border-top: 2px solid var(--ink); }
.outline-item:last-child { border-bottom: 2px solid var(--ink); }
.outline-item summary { min-height: 110px; display: grid; grid-template-columns: 130px 1fr auto auto; align-items: center; gap: 22px; cursor: pointer; list-style: none; }
.outline-item summary > span { color: var(--blue); font-family: var(--mono); font-weight: 900; }
.outline-item summary h3 { font-size: clamp(24px,2.8vw,44px); }
.outline-item summary > strong { color: var(--muted); font-size: 14px; }
.outline-item summary i { grid-column: 4; grid-row: 1; }
.outline-item ol { display: grid; grid-template-columns: repeat(2,1fr); gap: 1px; margin: 0 0 36px 152px; border: 1px solid var(--line); background: var(--line); }
.outline-item li { display: grid; grid-template-columns: 64px 1fr; gap: 14px; padding: 17px; background: var(--paper-strong); }
.outline-item li b { color: var(--blue); font-family: var(--mono); }
.faculty-section { display: grid; grid-template-columns: 1fr .8fr; gap: clamp(50px,8vw,150px); background: var(--ink); color: var(--paper); }
.faculty-title h2 { margin-top: 24px; font-family: var(--display); font-size: clamp(46px,5vw,88px); line-height: 1.08; letter-spacing: -.05em; }
.faculty-title .section-kicker { color: var(--green); }
.faculty-copy { align-self: end; }
.faculty-copy p { color: #b8c0bb; font-size: 18px; line-height: 1.8; }
.faculty-copy div { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.faculty-copy span { padding: 10px 14px; border: 1px solid #59625d; font-family: var(--mono); font-size: 12px; }

/* Account */
.account-main { min-height: calc(100svh - 94px); overflow: clip; }
.account-gate { min-height: calc(100svh - 94px); display: grid; grid-template-columns: minmax(0,.9fr) minmax(520px,1.1fr); gap: 60px; align-items: center; padding: 80px clamp(26px,5vw,92px); }
.gate-copy h1 { margin-top: 30px; font-family: var(--display); font-size: clamp(58px,6.2vw,112px); line-height: 1.03; letter-spacing: -.055em; }
.gate-copy > p:not(.event-badge) { max-width: 660px; margin-top: 26px; color: var(--muted); font-size: 19px; line-height: 1.75; }
.gate-copy .primary-action { margin-top: 34px; }
.gate-visual { position: relative; min-height: 600px; }
.sheet { position: absolute; width: 50%; aspect-ratio: .78; padding: 26px; border: 2px solid var(--ink); background: var(--paper-strong); box-shadow: 10px 10px 0 rgba(16,21,22,.22); font-family: var(--mono); }
.sheet-one { left: 1%; top: 15%; transform: rotate(-9deg); }.sheet-two { left: 26%; top: 2%; z-index: 2; transform: rotate(4deg); }.sheet-three { right: 0; bottom: 2%; transform: rotate(11deg); }
.sheet span { font-size: 11px; font-weight: 900; letter-spacing: .1em; }
.sheet-one i { display: block; height: 1px; margin-top: 32px; background: var(--line); }.sheet-one b { display: block; width: 90px; height: 90px; margin: 45px auto 0; border: 16px solid var(--blue); border-radius: 50%; }
.sheet-two { background: var(--green); }.sheet-two strong { display: block; margin-top: 26px; font-family: var(--display); font-size: 150px; line-height: .9; }.sheet-two p { height: 2px; margin-top: 28px; background: var(--ink); }
.sheet-three svg { margin-top: 80px; }
.account-dashboard { padding: 70px clamp(26px,5vw,92px) 110px; }
.account-heading { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; }
.account-heading h1 { max-width: 1100px; margin-top: 18px; font-family: var(--display); font-size: clamp(54px,6vw,106px); line-height: 1.04; letter-spacing: -.055em; }
.account-heading > div > p:last-child { margin-top: 22px; color: var(--muted); font-size: 18px; }
.account-number { width: 190px; height: 190px; display: grid; place-content: center; border: 2px solid var(--ink); background: var(--green); text-align: center; }
.account-number span { font-family: var(--mono); font-size: 11px; }.account-number strong { font-family: var(--display); font-size: 100px; line-height: .9; }
.dashboard-layout { display: grid; grid-template-columns: 1.05fr .95fr; gap: 22px; margin-top: 60px; }
.dashboard-card { padding: 30px; border: 2px solid var(--ink); background: var(--paper-strong); }
.dashboard-card > span { color: var(--blue); font-family: var(--mono); font-size: 11px; font-weight: 900; }
.dashboard-card h2 { margin-top: 20px; font-size: clamp(28px,3vw,48px); line-height: 1.14; }
.profile-card dl { display: grid; margin-top: 34px; border-top: 1px solid var(--line); }
.profile-card dl div { display: grid; grid-template-columns: 110px 1fr; gap: 18px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.profile-card dt { color: var(--muted); }.profile-card dd { margin: 0; font-weight: 900; }
.profile-card button { margin-top: 28px; min-height: 48px; padding: 0 18px; border: 2px solid var(--ink); background: var(--green); font-weight: 900; cursor: pointer; }
.progress-card { grid-row: span 2; }
.progress-track { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-top: 32px; }.progress-track i { height: 8px; background: var(--line); }.progress-track i.is-done { background: var(--green); }
.progress-card ol { display: grid; gap: 16px; margin-top: 30px; }
.progress-card li { display: grid; grid-template-columns: 50px 1fr; gap: 14px; padding: 16px; border: 1px solid var(--line); }
.progress-card li.is-current { border-color: var(--ink); background: var(--green-soft); }.progress-card b { font-family: var(--mono); color: var(--blue); }.progress-card p { margin-top: 5px; color: var(--muted); line-height: 1.5; }
.notice-card { background: var(--blue); color: #fff; }.notice-card > span { color: var(--green); }.notice-card p { margin-top: 20px; color: #d7dfff; line-height: 1.7; }.notice-card > strong { display: block; margin-top: 30px; padding-top: 20px; border-top: 1px solid #7c98ff; }
.course-card-small p { margin-top: 18px; color: var(--muted); line-height: 1.7; }.course-card-small a { display: inline-flex; margin-top: 28px; border-bottom: 2px solid; font-weight: 900; }

/* Modal */
.modal { width: min(760px, calc(100vw - 36px)); max-height: calc(100svh - 36px); padding: clamp(28px,4vw,52px); border: 3px solid var(--ink); border-radius: 12px; background: var(--paper-strong); color: var(--ink); box-shadow: 16px 16px 0 var(--blue); }
.modal::backdrop { background: rgba(16,21,22,.68); backdrop-filter: blur(8px); }
.modal-close { position: absolute; top: 22px; right: 22px; width: 42px; height: 42px; border: 2px solid var(--ink); border-radius: 50%; background: transparent; cursor: pointer; }
.modal-close::before, .modal-close::after { content: ""; position: absolute; left: 10px; right: 10px; top: 18px; height: 2px; background: var(--ink); transform: rotate(45deg); }.modal-close::after { transform: rotate(-45deg); }
.modal-label { color: var(--blue); font-family: var(--mono); font-size: 11px; font-weight: 900; letter-spacing: .12em; }
.modal h2 { margin-top: 14px; font-family: var(--display); font-size: clamp(40px,5vw,66px); }
.modal > p:not(.modal-label) { max-width: 560px; margin-top: 14px; color: var(--muted); line-height: 1.7; }
.consult-form, .login-form { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; margin-top: 30px; }
.consult-form label, .login-form label { display: grid; gap: 8px; font-size: 13px; font-weight: 900; }
.consult-form input, .consult-form select, .consult-form textarea, .login-form input { width: 100%; min-height: 50px; border: 2px solid var(--ink); border-radius: 3px; background: #fff; padding: 10px 12px; outline: none; }
.consult-form textarea { min-height: 90px; resize: vertical; }
.consult-form input:focus, .consult-form select:focus, .consult-form textarea:focus, .login-form input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(35,86,246,.15); }
.full { grid-column: 1/-1; }
.check { display: flex !important; grid-template-columns: auto 1fr; align-items: start; gap: 10px !important; font-weight: 500 !important; line-height: 1.5; }.check input { width: 18px !important; min-height: 18px !important; margin: 1px 0 0; }
.login-form { grid-template-columns: 1fr; }.login-form label span { display: grid; grid-template-columns: 1fr auto; }.login-form label span button { border: 2px solid var(--ink); border-left: 0; background: var(--green); padding: 0 14px; font-weight: 900; cursor: pointer; }

.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .65s ease, transform .65s cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1120px) {
  .lab-hero { grid-template-columns: 1fr; padding-top: 150px; }
  .hero-copy { max-width: 900px; }
  .model-lab { width: min(980px,100%); margin: 0 auto; }
  .sculpture-stage { min-height: 690px; }
  .inner-hero { grid-template-columns: 1fr; }
  .event-coordinate, .course-blueprint { width: min(760px,100%); }
  .chapter-grid, .course-grid, .triad-rail, .fact-section { grid-template-columns: 1fr; }
  .chapter-card { min-height: 340px; }
  .direction-grid { grid-template-columns: repeat(2,1fr); }
  .process-grid { grid-template-columns: repeat(2,1fr); }
  .process-grid article:nth-child(2) { border-right: 0; }.process-grid article:nth-child(-n+2) { border-bottom: 2px solid var(--ink); }
  .faculty-section { grid-template-columns: 1fr; }
  .account-gate { grid-template-columns: 1fr; }.gate-visual { width: min(780px,100%); margin: 0 auto; }
}

@media (max-width: 760px) {
  .site-header { height: 82px; grid-template-columns: 1fr auto; padding: 0 18px; }
  .brand { width: 148px; }.main-nav { display: none; }.login-button { min-width: 92px; height: 44px; }
  .lab-hero { min-height: auto; gap: 42px; padding: 126px 20px 64px; }
  .hero-copy h1 { margin-top: 26px; font-size: clamp(48px,14vw,66px); line-height: 1.08; letter-spacing: -.045em; }
  .hero-lead { margin-top: 22px; font-size: 17px; line-height: 1.7; }.hero-actions { margin-top: 28px; }.hero-note { display: grid; gap: 6px; margin-top: 34px; }
  .model-lab { width: 100%; padding-bottom: 20px; transform: none; }.sculpture-stage { min-height: 450px; border-radius: 26px; }.sculpture-stage::after { inset: 10px; border-radius: 18px; }.sculpture-image { left: -47%; width: 190%; }.sculpture-mark { top: 26px; left: 26px; }.sculpture-mark strong { font-size: 46px; }.sculpture-label { display: none; }.measurement-layer { opacity: .58; }.model-probe { left: 61%; top: 39%; width: 54px; height: 54px; }.model-probe::before { top: -18px; height: 90px; }.model-probe::after { left: -18px; width: 90px; }.sculpture-control { width: calc(100% - 20px); margin-top: -38px; padding: 18px 18px 20px; border-radius: 16px; }.sculpture-control input[type="range"] { margin: 20px 0 18px; }.sculpture-readouts { gap: 10px; }.sculpture-readouts span { display: grid; gap: 5px; }.sculpture-readouts strong { font-size: 14px; }
  .method-strip { justify-content: flex-start; gap: 14px; overflow-x: auto; padding: 20px; white-space: nowrap; }.method-strip i { width: 28px; flex: 0 0 28px; }
  .dark-chapter, .grade-section, .direction-section, .course-preview, .fact-section, .triad-section, .official-directions, .official-process, .course-plan-section, .course-steps, .outline-section, .faculty-section { padding: 78px 20px; }
  .dark-chapter .chapter-heading, .section-heading { grid-template-columns: 1fr; gap: 18px; }.section-heading > p:last-child { grid-column: 1; }.dark-chapter h2, .section-heading h2 { font-size: clamp(40px,12vw,58px); line-height: 1.12; }
  .chapter-grid { margin-top: 46px; }.chapter-card { min-height: 360px; padding: 26px; }.chapter-card > strong { font-size: 76px; }
  .grade-workbench { margin-top: 38px; box-shadow: 7px 7px 0 var(--blue); }.grade-tabs { grid-template-columns: repeat(2,1fr); }.grade-tabs button { min-height: 56px; border-bottom: 1px solid var(--ink); }.grade-tabs button:nth-child(2) { border-right: 0; }.grade-tabs button:nth-child(n+3) { border-bottom: 0; }
  .grade-panel { min-height: 0; grid-template-columns: 1fr; padding: 30px 22px; }.grade-panel > span { grid-row: auto; }.grade-panel h3 { font-size: 38px; }.grade-panel p { font-size: 16px; }
  .direction-grid { grid-template-columns: 1fr; margin-top: 38px; }.direction-item summary { min-height: 110px; }
  .course-grid { grid-template-columns: 1fr; margin-top: 40px; }.course-card, .course-grid.large .course-card { min-height: 500px; }.course-card h3 { min-height: 0; }.course-card > strong { margin-top: 54px; }
  .consult-section { grid-template-columns: 1fr; align-items: start; padding: 70px 20px; }.consult-section h2 { font-size: 45px; }.consult-section .primary-action { justify-self: start; }
  .site-footer { grid-template-columns: 1fr; padding: 28px 20px; }.site-footer p { justify-self: start; text-align: left; }
  .inner-hero { min-height: auto; gap: 50px; padding: 68px 20px 76px; }.inner-hero h1 { font-size: clamp(48px,13vw,66px); line-height: 1.08; }.official-hero h1 { font-size: 40px; }.inner-hero-copy > p:not(.event-badge) { font-size: 17px; }.event-coordinate { min-height: 410px; padding: 24px; box-shadow: 8px 8px 0 var(--green); }.event-coordinate > strong { font-size: 150px; }
  .fact-card { min-height: 290px; }.triad-card { min-height: 470px; }.triad-card h3 { font-size: 44px; }
  .official-direction summary { grid-template-columns: 95px 1fr auto; gap: 12px; min-height: 88px; }.official-direction h3 { font-size: 21px; }.official-direction > div { grid-template-columns: 1fr; padding: 0 0 28px; }.official-direction > div ul { grid-column: 1; }
  .process-grid { grid-template-columns: 1fr; }.process-grid article { min-height: 260px; border-right: 0; border-bottom: 2px solid var(--ink) !important; }.process-grid article:last-child { border-bottom: 0 !important; }
  .course-blueprint { box-shadow: 8px 8px 0 var(--green); }.step-list article { grid-template-columns: 70px 1fr; }.step-list article > b { font-size: 42px; }
  .outline-item summary { grid-template-columns: 82px 1fr auto; gap: 12px; }.outline-item summary > strong { display: none; }.outline-item summary i { grid-column: 3; }.outline-item ol { grid-template-columns: 1fr; margin-left: 0; }.faculty-title h2 { font-size: 44px; }
  .account-gate { grid-template-columns: 1fr; padding: 70px 20px; }.gate-copy h1 { font-size: 50px; }.gate-visual { min-height: 430px; }.sheet { width: 58%; padding: 16px; }.sheet-two strong { font-size: 92px; }.sheet-three svg { margin-top: 42px; }
  .account-dashboard { padding: 58px 20px 80px; }.account-heading { grid-template-columns: 1fr; }.account-heading h1 { font-size: 50px; }.account-number { width: 130px; height: 130px; }.account-number strong { font-size: 68px; }.dashboard-layout { grid-template-columns: 1fr; }.progress-card { grid-row: auto; }
  .modal { padding: 34px 22px 26px; box-shadow: 8px 8px 0 var(--blue); }.consult-form { grid-template-columns: 1fr; }.full { grid-column: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .model-lab, .sculpture-image, .model-probe { transform: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* 2026-08-04 shared footer and transparent-logo standard */
.brand,.brand img,.site-header .brand,.site-header .brand img{background:transparent!important}
.site-footer .site-legal-note{grid-column:1/-1;display:block;width:100%;margin-top:18px;padding-top:10px;border-top:1px solid currentColor;color:inherit!important;opacity:.55;font-size:10px!important;font-weight:400;line-height:1.65;letter-spacing:0;text-align:center}
/* Semantic title wrapping */
.title-line { display: block; }
.direction-item summary strong,
.official-direction summary h3 { word-break: keep-all; overflow-wrap: normal; }
@media (max-width: 760px) {
  .official-direction summary i { transform: translateX(-10px); }
}

/* Shared utility controls */
select{color-scheme:light}
select option{color:#111!important;background:#fff!important}
.site-footer > .official-site-link{grid-column:1/-1;justify-self:center;display:inline-flex;align-items:center;gap:9px;width:max-content;margin:18px auto 0;padding:10px 16px;border:1px solid currentColor;color:inherit;font-size:12px;font-weight:800;line-height:1;text-decoration:none;box-shadow:4px 4px 0 #80dc4c;transition:background .18s,color .18s,transform .18s}
.site-footer > .official-site-link:hover,.site-footer > .official-site-link:focus-visible{background:#80dc4c;color:#0d0f0e;transform:translate(-2px,-2px)}
.back-to-top{position:fixed;right:clamp(16px,2.2vw,32px);bottom:clamp(16px,2.2vw,32px);z-index:70;display:grid;place-items:center;width:52px;height:52px;border:2px solid #111;border-radius:4px;color:#111;background:#f7f4eb;box-shadow:6px 6px 0 #80dc4c;cursor:pointer;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(12px);transition:opacity .2s,visibility .2s,transform .2s,background .2s}
.back-to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.back-to-top:hover,.back-to-top:focus-visible{background:#80dc4c}
.back-to-top span{font-size:22px;line-height:1}
@media(max-width:560px){.back-to-top{right:16px;bottom:16px;width:48px;height:48px}}
@media(prefers-reduced-motion:reduce){.back-to-top{transition:none}}

/* 2026-08-05 standalone official entry and compact footer */
.official-entry-band{display:flex;align-items:center;justify-content:center;min-height:84px;padding:20px clamp(26px,5vw,92px);border-top:2px solid var(--ink);border-bottom:1px solid rgba(16,21,22,.2);background:#8fe654}
.official-entry-band .official-site-link{display:inline-flex;align-items:center;gap:10px;padding:11px 18px;border:2px solid var(--ink);color:var(--ink);background:#f7f4eb;box-shadow:4px 4px 0 var(--ink);font-size:12px;font-weight:900;line-height:1;text-decoration:none;transition:transform .18s,box-shadow .18s}
.official-entry-band .official-site-link:hover,.official-entry-band .official-site-link:focus-visible{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--ink)}
body .site-footer{min-height:0;padding:18px clamp(26px,5vw,92px) 10px}
body .site-footer .site-legal-note{max-width:none!important;justify-self:stretch!important;margin-top:4px;padding-top:7px;text-align:center!important}
@media(max-width:560px){.official-entry-band{min-height:72px;padding:17px 20px}body .site-footer{grid-template-columns:1fr;padding:18px 20px 12px}body .site-footer p{text-align:left;justify-self:start}}

/* Account and membership features are intentionally retired. */
[data-login],[data-login-open],[data-account-button],.login-button,.account-link,#loginDialog,#login-dialog,.login-dialog,[data-login-modal]{display:none!important}