:root {
  --ink: #18252d;
  --blue: #8ed9ee;
  --blue-deep: #176b86;
  --lime: #d5ef60;
  --paper: #f3f1eb;
  --paper-warm: #e8e4db;
  --line: #c8c9c2;
  --muted: #657077;
  --sans: 'Arial', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'SFMono-Regular', 'Roboto Mono', Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.65 var(--sans); }
a { color: inherit; text-decoration: none; }
.site-frame { max-width: 1500px; margin: 0 auto; padding: 0 5vw; overflow: hidden; }
.nav-bar { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 28px; border-bottom: 2px solid var(--ink); }
.logo-lockup { display: flex; align-items: center; gap: 12px; }
.logo-symbol { display: flex; align-items: end; gap: 3px; width: 31px; height: 31px; padding: 4px; background: var(--ink); }
.logo-symbol i { display: block; width: 5px; background: var(--lime); }
.logo-symbol i:nth-child(1) { height: 12px; }.logo-symbol i:nth-child(2) { height: 19px; }.logo-symbol i:nth-child(3) { height: 24px; }
.logo-lockup strong, .logo-lockup small { display: block; line-height: 1.15; }
.logo-lockup strong { font-size: 18px; letter-spacing: -.03em; }.logo-lockup small { margin-top: 4px; color: var(--muted); font: 9px var(--mono); letter-spacing: .12em; }
.nav-bar nav { display: flex; gap: 30px; font-weight: 600; }
.nav-bar nav a { padding: 9px 0; border-bottom: 2px solid transparent; }
.nav-bar nav a:hover, .nav-bar nav a.is-active { border-color: var(--blue-deep); color: var(--blue-deep); }
.edition { color: var(--muted); font: 12px var(--mono); }
.hero { min-height: 700px; display: grid; grid-template-columns: minmax(0, .86fr) minmax(400px, 1.14fr); align-items: center; gap: 8vw; padding: 100px 0 112px; }
.kicker, .section-index { margin: 0; color: var(--blue-deep); font: 600 12px var(--mono); letter-spacing: .08em; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 700px; margin: 22px 0 27px; font-size: clamp(3.8rem, 7.1vw, 7.4rem); line-height: .93; letter-spacing: -.085em; font-weight: 700; }
.hero-summary { max-width: 490px; color: #4d5a60; font-size: 18px; }
.text-link { display: inline-flex; align-items: center; gap: 17px; margin-top: 22px; padding-bottom: 7px; border-bottom: 2px solid var(--ink); font-weight: 700; }
.text-link span { color: var(--blue-deep); font-size: 21px; }
.learning-console { border: 2px solid var(--ink); background: var(--paper-warm); box-shadow: 16px 16px 0 var(--blue); }
.console-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; min-height: 53px; padding: 0 18px; border-bottom: 2px solid var(--ink); font: 11px var(--mono); }
.window-dots { display: flex; gap: 5px; }.window-dots i { width: 7px; height: 7px; border: 1px solid var(--ink); border-radius: 50%; }.window-dots i:first-child { background: var(--lime); }
.live-label { padding: 4px 6px; background: var(--lime); font-size: 10px; }
.console-body { display: grid; grid-template-columns: .7fr 1.5fr; min-height: 390px; }
.lesson-rail { padding: 31px 23px; border-right: 1px solid var(--line); }.rail-caption { display: block; margin-bottom: 22px; color: var(--muted); font: 10px var(--mono); letter-spacing: .1em; }.lesson-rail strong { display: block; font-size: 19px; line-height: 1.25; }
.rail-line { display: block; width: 100%; height: 8px; margin-top: 35px; background: #d4d4cc; }.rail-line.active { width: 88%; background: var(--blue-deep); }.rail-line.short { width: 58%; }
.lesson-main { padding: 31px; }.progress-row { display: flex; justify-content: space-between; margin-bottom: 9px; font-size: 12px; }.progress-row strong { font: 600 13px var(--mono); }.progress-track { height: 8px; margin-bottom: 32px; background: #d2d3cc; }.progress-track span { display: block; width: 68%; height: 100%; background: var(--blue-deep); }
.lesson-card { padding: 26px 25px 22px; border: 1px solid var(--ink); background: var(--paper); }.lesson-tag { color: var(--blue-deep); font: 10px var(--mono); }.lesson-card h2 { margin: 15px 0 13px; font-size: clamp(1.5rem, 3vw, 2.4rem); line-height: 1.05; letter-spacing: -.06em; }.lesson-card p { color: var(--muted); font-size: 13px; }.lesson-foot { display: flex; justify-content: space-between; margin-top: 26px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--blue-deep); font: 10px var(--mono); }.lesson-foot b { font-size: 17px; }.mini-lessons { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }.mini-lessons span { padding: 5px 8px; background: var(--lime); font: 10px var(--mono); }
.section { padding: 112px 0; border-top: 2px solid var(--ink); }.section-top { display: flex; justify-content: space-between; align-items: end; gap: 45px; }.section h2 { max-width: 700px; margin: 20px 0 0; font-size: clamp(2.5rem, 5vw, 5rem); line-height: .98; letter-spacing: -.08em; }.section-note { max-width: 250px; margin: 0; color: var(--muted); font-size: 14px; }
.capability-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; margin-top: 60px; }.capability-card { min-height: 315px; display: flex; flex-direction: column; padding: 22px; border: 2px solid var(--ink); }.capability-card > span { font: 11px var(--mono); }.capability-card h3 { margin: auto 0 13px; font-size: 27px; letter-spacing: -.05em; }.capability-card p { margin-bottom: 25px; color: #4e5c62; font-size: 14px; }.capability-card b { font: 10px var(--mono); }.card-lime { background: var(--lime); }.card-blue { background: var(--blue); }.card-white { background: #fff; }.card-dark { background: var(--ink); color: var(--paper); }.card-dark p { color: #b9c6ca; }
.safety { display: grid; grid-template-columns: minmax(0, .9fr) minmax(400px, 1.1fr); gap: 9vw; align-items: start; background: var(--ink); color: var(--paper); }.safety .section-index { color: var(--lime); }.safety h2 { max-width: 600px; }.safety-copy > p:last-child { max-width: 530px; margin-top: 27px; color: #b4c0c4; font-size: 17px; }.safety-list { border-top: 1px solid #516069; }.safety-list div { display: grid; grid-template-columns: 48px 1fr auto; gap: 18px; align-items: baseline; padding: 19px 0; border-bottom: 1px solid #516069; }.safety-list span, .safety-list em { color: var(--lime); font: 11px var(--mono); }.safety-list strong { font-size: 19px; font-weight: 500; }.safety-list em { color: #90a4ab; font-style: normal; font-size: 10px; }
.routing-heading { display: grid; grid-template-columns: 1fr .8fr; column-gap: 9vw; }.routing-heading .section-index, .routing-heading h2 { grid-column: 1; }.routing-heading > p:last-child { grid-column: 2; grid-row: 2; max-width: 240px; margin: 28px 0 0; color: var(--muted); }.provider-list { margin-top: 64px; border-top: 2px solid var(--ink); }.provider { display: grid; grid-template-columns: 80px 1fr 160px; align-items: center; gap: 20px; padding: 25px 0; border-bottom: 1px solid var(--line); }.provider-no, .provider-tag { color: var(--blue-deep); font: 11px var(--mono); }.provider strong { font-size: clamp(1.5rem, 3vw, 2.8rem); letter-spacing: -.06em; }.provider-tag { text-align: right; color: var(--muted); }
.site-footer { display: flex; justify-content: space-between; gap: 40px; padding: 34px 0 52px; border-top: 2px solid var(--ink); font-size: 13px; }.site-footer strong, .site-footer span { display: block; }.site-footer strong { margin-bottom: 6px; font-size: 15px; }.site-footer span { color: var(--muted); }.site-footer p { max-width: 430px; margin: 0; color: var(--muted); }
@media (max-width: 900px) { .hero, .safety { grid-template-columns: 1fr; gap: 55px; }.capability-grid { grid-template-columns: repeat(2, 1fr); }.section-top { display: block; }.section-note { margin-top: 22px; }.routing-heading { display: block; }.routing-heading > p:last-child { margin-top: 22px; } }
@media (max-width: 620px) { .site-frame { padding: 0 21px; }.nav-bar { flex-wrap: wrap; padding: 16px 0; }.nav-bar nav { order: 3; width: 100%; justify-content: space-between; gap: 10px; font-size: 14px; }.edition { display: none; }.hero { padding: 75px 0 90px; }.hero h1 { font-size: clamp(3.4rem, 16vw, 5.6rem); }.hero-summary { font-size: 16px; }.learning-console { box-shadow: 8px 8px 0 var(--blue); }.console-body { grid-template-columns: 1fr; }.lesson-rail { display: none; }.lesson-main { padding: 22px; }.capability-grid { grid-template-columns: 1fr; margin-top: 40px; }.capability-card { min-height: 245px; }.section { padding: 78px 0; }.section h2 { font-size: clamp(2.4rem, 13vw, 4rem); }.provider { grid-template-columns: 42px 1fr; }.provider-tag { grid-column: 2; text-align: left; margin-top: -13px; }.safety-list div { grid-template-columns: 38px 1fr; }.safety-list em { grid-column: 2; }.site-footer { display: block; }.site-footer p { margin-top: 25px; } }

/* Education company content */
h1 { font-size: clamp(3.2rem, 5.4vw, 5.4rem); line-height: 1.15; letter-spacing: -.06em; }
.section h2 { line-height: 1.14; }
.hero { gap: 5vw; }
.about-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; max-width: 1000px; margin-top: 35px; color: var(--muted); font-size: 17px; }
a:focus-visible { outline: 3px solid var(--blue-deep); outline-offset: 5px; }
@media (max-width: 620px) { .hero h1 { font-size: clamp(2.8rem, 11vw, 4rem); }.about-copy { grid-template-columns: 1fr; gap: 4px; }.nav-bar nav { flex-wrap: wrap; }.section h2 { line-height: 1.14; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }