@import"https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;700;800;900&family=JetBrains+Mono:wght@700;800&display=swap";:root{--bg-page: #0b1321;--bg-surface: #0e1828;--bg-soft: #131e31;--bg-dark: #060e1c;--bg-dark-2: #111d31;--bg-dark-3: #17243a;--bg-card: #141f31;--bg-card-2: #10192a;--text-main: #f7f9fc;--text-muted: #c3c6d5;--text-soft: #8994a6;--text-light: #f7f9fc;--line: rgba(255, 255, 255, .12);--line-soft: rgba(255, 255, 255, .08);--line-dark: rgba(255, 255, 255, .12);--brand-blue: #5e8ff7;--brand-blue-2: #82aafc;--brand-cyan: #b0c6ff;--brand-red: #d20218;--brand-soft: rgba(94, 143, 247, .12);--code-bg: #101827;--code-text: #e8eef8;--radius-sm: 10px;--radius-md: 16px;--radius-lg: 24px;--radius-xl: 34px;--shadow-card: 0 20px 60px rgba(0, 0, 0, .24);--shadow-hero: 0 34px 90px rgba(0, 0, 0, .42);--container: 1440px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text-main);background:radial-gradient(circle at top right,rgba(94,143,247,.1),transparent 26%),linear-gradient(180deg,#0b1321,#09111e);font-family:Hanken Grotesk,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6;text-rendering:geometricPrecision}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,a{-webkit-tap-highlight-color:transparent}code,pre,.section-kicker,.resource-episode,.episode-meta-line span{font-family:JetBrains Mono,SFMono-Regular,Consolas,monospace}pre{margin:0;padding:28px;color:var(--code-text);background:linear-gradient(180deg,rgba(255,255,255,.03),transparent),var(--code-bg);border:1px solid var(--line);border-radius:24px;overflow-x:auto;box-shadow:var(--shadow-card);font-size:14px;line-height:1.7}.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}.section{padding:96px 0}.section.surface{background:#040a1447;border-block:1px solid var(--line-soft)}.section-divider{width:100%;height:1px;margin-bottom:40px;background:var(--line)}.section-heading.center{max-width:860px;margin-inline:auto;text-align:center}.section-heading.center .section-lead{margin-inline:auto}.section-kicker{margin:0 0 16px;color:var(--brand-cyan);font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase}.section-title{margin:0;font-size:clamp(42px,6vw,72px);line-height:1.08;letter-spacing:0}.section-lead{max-width:760px;margin:18px 0 0;color:var(--text-muted);font-size:18px}.btn-row{display:flex;flex-wrap:wrap;gap:14px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 22px;border:1px solid transparent;border-radius:999px;font-size:14px;font-weight:900;line-height:1;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,background .16s ease}.btn:hover{transform:translateY(-2px)}.btn.primary{color:#0b1321;background:linear-gradient(135deg,var(--brand-blue),var(--brand-blue-2));box-shadow:0 14px 34px #5e8ff747}.btn.secondary{color:var(--text-main);background:#ffffff0f;border-color:#ffffff29}.btn.disabled,.btn[aria-disabled=true]{color:var(--text-soft);background:#ffffff0d;border-color:var(--line-soft);box-shadow:none;cursor:not-allowed;transform:none}.site-header{position:sticky;top:0;z-index:50;background:#0b1321cc;border-bottom:1px solid var(--line);backdrop-filter:blur(20px)}.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:76px}.logo{justify-self:start;font-size:19px;font-weight:800;letter-spacing:0}.nav{display:flex;align-items:center;gap:28px}.nav a{position:relative;padding:10px 0;color:var(--text-muted);font-size:15px;font-weight:700}.nav a.active,.nav a:hover{color:var(--text-main)}.nav a.active:after,.nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--brand-blue)}.header-cta{justify-self:end;padding:12px 26px;color:#08111f;background:linear-gradient(135deg,var(--brand-blue),var(--brand-blue-2));border-radius:999px;font-size:14px;font-weight:900;box-shadow:0 14px 34px #5e8ff73d}.hero{position:relative;overflow:hidden;min-height:700px;background:linear-gradient(90deg,#05152d 0% 58%,#10233f);border-bottom:1px solid var(--line-soft)}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 18% 20%,rgba(210,2,24,.14),transparent 22%),linear-gradient(90deg,#05152d24,#05152d00 38%),linear-gradient(180deg,#05152d1f,#05152d6b);pointer-events:none}.hero:after{content:none}.hero-inner{position:relative;z-index:2;display:flex;align-items:center;min-height:700px;padding:100px 0 92px}.hero-copy{max-width:860px;padding-top:48px}.hero-eyebrow{display:inline-flex;margin:0 0 24px}.hero-eyebrow span{padding:8px 14px;color:#ffd4d8;background:#d2021833;border:1px solid rgba(255,180,171,.18);border-radius:999px;font-family:JetBrains Mono,monospace;font-size:11px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.hero h1{margin:0;white-space:pre-line;font-size:clamp(68px,10vw,108px);line-height:1;letter-spacing:0}.hero-lead{max-width:640px;margin:26px 0 38px;color:var(--text-muted);font-size:19px}.hero-train{position:absolute;z-index:0;right:clamp(28px,7vw,140px);bottom:0;width:min(68vw,1220px);opacity:1;-webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 13%,#000 78%,transparent 100%),linear-gradient(180deg,transparent 0%,#000 7%,#000 100%);-webkit-mask-composite:source-in;mask-image:linear-gradient(90deg,transparent 0%,#000 13%,#000 78%,transparent 100%),linear-gradient(180deg,transparent 0%,#000 7%,#000 100%);mask-composite:intersect;pointer-events:none}.home-skills .section-title,.instructor-head .section-title{font-size:clamp(36px,5vw,58px)}.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:34px}.feature-card,.page-hero-card,.resource-card,.tool-card,.faq-item,.suggestion-card,.course-route-shell,.instructor-card,.episode-card,.route-map{background:linear-gradient(180deg,#141f31f5,#0c1523f5);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-card)}.feature-card{min-height:190px;padding:28px}.feature-card-icon{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;background:var(--brand-soft);border-radius:50%;overflow:hidden}.feature-card-icon img{width:24px;height:24px;object-fit:contain}.feature-card h3{margin:24px 0 10px;font-size:29px;line-height:1.2;letter-spacing:0}.feature-card p{margin:0;color:var(--text-muted)}.route-map{--route-released: #adc4ff;--route-editing: #89a7e9;--route-planned: rgba(255, 255, 255, .18);margin-top:34px;padding:32px 36px 36px;overflow-x:auto}.route-header{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:22px}.route-header strong{display:block;font-size:32px;line-height:1.1;letter-spacing:0}.route-header div>span{color:var(--text-soft);font-size:13px}.route-legend{display:flex;gap:18px;color:var(--text-muted);font-size:13px}.route-legend span{display:inline-flex;align-items:center;gap:8px}.route-legend i{width:8px;height:8px;border-radius:50%}.route-legend .released{background:#adc4ff}.route-legend .editing{background:#89a7e9}.route-legend .planned{background:#ffffff38}.route-track{position:relative;display:flex;align-items:flex-start;justify-content:center;isolation:isolate;width:max-content;min-width:1240px;margin:0 auto;padding:22px 12px 4px}.route-track:before{content:"";position:absolute;z-index:0;top:40px;left:48px;right:48px;height:4px;background:var(--route-planned);border-radius:999px}.route-track:after{content:"";position:absolute;z-index:1;top:40px;left:48px;right:48px;height:4px;background:var(--route-progress, transparent);border-radius:999px}.route-stop{position:relative;z-index:2;width:92px;text-align:center}.stop-dot{position:relative;z-index:2;display:grid;place-items:center;width:38px;height:38px;margin:0 auto 12px;color:#ffffffa6;background:#30384a;border-radius:50%;font-size:12px;font-weight:800}.route-stop.released .stop-dot{color:#0b1321;background:var(--route-released);box-shadow:0 0 0 8px #b6cbff1f}.route-stop.editing .stop-dot{border:2px solid var(--route-editing);background:#30384a;box-shadow:none}.stop-number{display:block;font-size:13px;font-weight:800}.stop-title{display:block;margin-top:4px;color:var(--text-soft);font-size:12px;line-height:1.35}.route-actions{display:flex;justify-content:center;margin-top:26px}.instructor-head{display:flex;align-items:end;justify-content:space-between;gap:32px}.instructor-head p{max-width:460px;margin:0;color:var(--text-muted)}.instructor-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px 18px;margin-top:28px}.instructor-card{display:flex;align-items:center;gap:16px;padding:18px 20px}.avatar{display:grid;place-items:center;flex:0 0 74px;width:74px;height:74px;overflow:hidden;color:#0b1321;background:linear-gradient(135deg,#d8e4ff,#78a2ff);border-radius:50%;font-size:28px;font-weight:900}.avatar img{width:100%;height:100%;object-fit:cover}.avatar span{display:block}.instructor-card strong{display:block;font-size:24px;line-height:1.15;letter-spacing:0}.instructor-card span{display:block;margin-top:8px;color:var(--text-muted);font-size:14px}.home-cta{display:grid;justify-items:center;gap:22px;margin:0 0 96px;padding:88px 40px;text-align:center;background:radial-gradient(circle at center,rgba(94,143,247,.12),transparent 42%),linear-gradient(180deg,#121e31fa,#0a111dfa);border:1px solid var(--line);border-radius:34px}.home-cta h2{margin:0;font-size:clamp(56px,9vw,100px);line-height:1.05;letter-spacing:0;white-space:nowrap}.home-cta p{max-width:680px;margin:0;color:var(--text-muted);font-size:18px}.page-hero{position:relative;padding:100px 0 84px;border-bottom:1px solid var(--line-soft)}.page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 86% 20%,rgba(94,143,247,.08),transparent 24%);pointer-events:none}.compact-hero{padding-top:110px}.page-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 360px;align-items:end;gap:64px}.page-hero-inner.single{grid-template-columns:1fr}.page-hero h1{margin:0;font-size:clamp(76px,10vw,122px);line-height:1;letter-spacing:0}.page-hero p:not(.section-kicker){max-width:860px;margin:24px 0 0;color:var(--text-muted);font-size:19px}.page-hero-card{padding:24px}.page-hero-card strong{display:block;font-size:38px;line-height:1.1;letter-spacing:0}.page-hero-card span{display:block;margin-top:10px;color:var(--text-muted)}.page-hero-card-dark{min-height:108px}.course-route-shell{padding:34px 38px}.course-route-title h2,.directory-head h2{margin:0;font-size:44px;line-height:1.12;letter-spacing:0}.course-route-shell .route-map{margin-top:18px;padding:22px;background:#0a121f}.course-route-shell .route-header,.course-route-shell .route-actions{display:none}.course-directory{padding-top:10px}.course-directory-grid{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:28px;align-items:start}.directory-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px}.episode-list{display:grid;gap:22px}.episode-card{display:grid;grid-template-columns:90px minmax(0,1fr) 74px;align-items:center;gap:20px;padding:24px 28px}.episode-index span{display:grid;place-items:center;width:62px;height:62px;color:var(--text-soft);background:#ffffff0a;border:1px solid var(--line-soft);border-radius:14px;font-size:24px;font-weight:800}.episode-heading-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.episode-heading-top p{margin:0;color:var(--text-soft);font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.episode-badge{display:inline-flex;align-items:center;justify-content:center;min-width:64px;padding:6px 10px;border-radius:999px;font-style:normal;font-size:12px;font-weight:800}.episode-badge.released{color:#d9e4ff;background:#5e8ff72e}.episode-badge.editing{color:#dfe8ff;background:#82aafc1f}.episode-badge.planned{color:var(--text-soft);background:#ffffff0f}.episode-heading h3{margin:10px 0 4px;font-size:28px;line-height:1.2;letter-spacing:0}.episode-heading strong{color:#9eb2d8;font-size:14px;letter-spacing:.16em;text-transform:uppercase}.episode-summary{margin:14px 0 0;color:var(--text-muted);font-size:16px}.episode-meta-line{display:flex;flex-wrap:wrap;gap:18px;margin-top:16px}.episode-meta-line span{color:var(--text-soft);font-size:12px;letter-spacing:.04em}.episode-actions{display:grid;place-items:center}.episode-actions span{display:grid;place-items:center;width:50px;height:50px;color:var(--text-main);background:#ffffff0a;border-radius:50%;font-size:34px}.suggestion-card{padding:28px}.suggestion-icon{display:grid;place-items:center;width:48px;height:48px;color:#ffd9d5;background:#d202181f;border-radius:50%}.suggestion-card h3{margin:18px 0 22px;font-size:44px;line-height:1.12;letter-spacing:0}.suggestion-list{display:grid;gap:24px}.suggestion-list strong{display:block;font-size:24px;line-height:1.18;letter-spacing:0}.suggestion-list p{margin:10px 0 0;color:var(--text-muted)}.download-panel{display:grid;gap:8px;margin-top:34px;padding:26px;background:#0309128f;border:1px solid var(--line-soft);border-radius:18px}.download-panel p{margin:0;font-size:24px;font-weight:800;letter-spacing:0}.download-panel span{color:var(--text-muted)}.suggestion-btn{width:100%;margin-top:10px}.resource-groups{display:grid;gap:40px;margin-top:32px}.resource-group-title{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:16px}.resource-group-title h2{margin:0;font-size:30px;line-height:1.15;letter-spacing:0}.resource-group-title span{color:var(--text-soft);font-size:13px}.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.resource-card{display:flex;flex-direction:column;justify-content:space-between;min-height:226px;padding:22px}.resource-episode{display:inline-flex;margin-bottom:14px;color:#c4d5ff;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.resource-card h3,.tool-card h3{margin:0;font-size:28px;line-height:1.2;letter-spacing:0}.resource-card p,.tool-card span{margin:12px 0 0;color:var(--text-muted);font-size:15px}.resource-btn{width:100%;margin-top:24px}.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:30px}.tool-card{min-height:178px;padding:20px}.tool-card p{margin:0 0 16px;color:var(--brand-cyan);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.code-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:30px}.faq-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;align-items:start}.faq-list{display:grid;gap:12px}.faq-item{overflow:hidden}.faq-item summary{cursor:pointer;padding:22px 24px;font-size:22px;font-weight:800;letter-spacing:0;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item p{margin:0;padding:0 24px 24px;color:var(--text-muted)}.site-footer{padding:24px 0 40px;border-top:1px solid var(--line);background:linear-gradient(180deg,#050a1366,#050a13e6),radial-gradient(circle at 12% 30%,rgba(94,143,247,.14),transparent 26%)}.footer-shell{position:relative}.footer-shell:before{content:"";position:absolute;inset:0;border:1px solid rgba(115,140,185,.18);border-radius:28px;background:linear-gradient(135deg,#141f31e0,#0a121eb8),radial-gradient(circle at top left,rgba(94,143,247,.14),transparent 30%);box-shadow:0 18px 50px #0003}.footer-inner{position:relative;display:flex;align-items:end;justify-content:space-between;gap:32px;padding:32px 36px}.footer-kicker{display:inline-block;margin-bottom:14px;color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.24em}.footer-brand strong{display:block;font-size:clamp(28px,4vw,40px);line-height:1.1;letter-spacing:0}.footer-brand p{max-width:520px;margin:14px 0 0;color:var(--text-muted);font-size:14px;line-height:1.8}.footer-tags{display:flex;flex-direction:column;gap:12px;align-items:stretch}.footer-tag{display:inline-flex;align-items:center;justify-content:flex-start;gap:12px;min-width:180px;min-height:48px;padding:0 16px;border:1px solid rgba(115,140,185,.2);border-radius:16px;background:#121e30b3;color:var(--text-soft);font-size:13px;letter-spacing:.08em;text-transform:none;transition:transform .18s ease,border-color .18s ease,background .18s ease}.footer-tag:hover{transform:translateY(-1px);border-color:#5e8ff761;background:#16263ee6}.footer-tag-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;color:currentColor}.footer-tag-icon svg{width:18px;height:18px;fill:currentColor}@media(max-width:1280px){.container{width:min(var(--container),calc(100% - 48px))}.course-directory-grid{grid-template-columns:minmax(0,1fr) 360px}}@media(max-width:1100px){.feature-grid,.resource-grid,.tool-grid,.instructor-grid,.course-directory-grid,.faq-layout,.page-hero-inner{grid-template-columns:1fr}.header-inner{grid-template-columns:1fr;justify-items:start;gap:14px;padding:16px 0}.nav,.header-cta{justify-self:start}.hero{min-height:auto}.hero-inner{min-height:auto;padding:96px 0 120px}.hero-train{right:clamp(12px,4vw,36px);bottom:0;width:min(92vw,860px);opacity:.66}.instructor-head{align-items:start;flex-direction:column}.footer-inner{display:flex;flex-direction:column;align-items:flex-start}.footer-tags{justify-content:flex-start;align-items:flex-start}}@media(max-width:720px){.container{width:min(100% - 32px,var(--container))}.section{padding:72px 0}.nav{flex-wrap:wrap;gap:16px 22px}.hero-inner{padding:88px 0 120px}.hero-copy{padding-top:20px}.hero h1,.page-hero h1{font-size:clamp(52px,18vw,80px)}.feature-grid,.resource-grid,.tool-grid,.instructor-grid,.code-grid{grid-template-columns:1fr}.route-header,.directory-head,.resource-group-title{flex-direction:column;align-items:start}.episode-card{grid-template-columns:1fr}.episode-actions{justify-items:start}.home-cta{margin-bottom:72px;padding:64px 24px}.home-cta h2{font-size:62px}.footer-inner{padding:28px 22px}.footer-brand strong{font-size:30px}.footer-tag{min-width:160px;min-height:44px;padding:0 14px}}
