pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}/*!
  Theme: GitHub Dark
  Description: Dark theme as seen on github.com
  Author: github.com
  Maintainer: @Hirse
  Updated: 2021-05-15

  Outdated base version: https://github.com/primer/github-syntax-dark
  Current colors taken from GitHub's CSS
*/.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}:root{--bg: #171225;--bg-2: #1d1730;--bg-soft: #251c3c;--surface: rgba(255, 255, 255, .05);--surface-2: rgba(255, 255, 255, .08);--border: rgba(255, 255, 255, .1);--border-strong: rgba(255, 255, 255, .18);--text: #f4ece0;--text-dim: #bcaece;--text-faint: #877a9c;--accent: #ff8a5b;--accent-2: #ffb15c;--accent-soft: rgba(255, 138, 91, .14);--accent-glow: rgba(255, 138, 91, .35);--mint: #7fe1c4;--mint-soft: rgba(127, 225, 196, .12);--ok: #5fd6a0;--ok-soft: rgba(95, 214, 160, .12);--warn: #ffcf6b;--warn-soft: rgba(255, 207, 107, .12);--danger: #ff7a85;--danger-soft: rgba(255, 122, 133, .12);--checkpoint: #ffcf6b;--explore: #7fe1c4;--challenge: #ff8a5b;--radius: 20px;--radius-sm: 13px;--radius-lg: 28px;--shadow: 0 18px 50px -20px rgba(0, 0, 0, .7);--shadow-soft: 0 10px 30px -16px rgba(0, 0, 0, .6);--maxw: 1080px;--ease: cubic-bezier(.16, 1, .3, 1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Outfit,-apple-system,Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;background:radial-gradient(115% 80% at 10% -10%,rgba(255,138,91,.2),transparent 55%),radial-gradient(115% 85% at 95% 4%,rgba(127,225,196,.16),transparent 52%),radial-gradient(130% 120% at 58% 118%,rgba(255,193,107,.18),transparent 55%),var(--bg);background-attachment:fixed;color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}.ambient{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;overflow:hidden}.ambient:before,.ambient:after{content:"";position:absolute;width:52vw;height:52vw;border-radius:50%;filter:blur(100px);opacity:.72}.ambient:before{background:radial-gradient(circle,var(--accent-glow),transparent 70%);top:-14vw;left:-10vw;animation:drift1 22s ease-in-out infinite alternate}.ambient:after{background:radial-gradient(circle,rgba(127,225,196,.42),transparent 70%);bottom:-18vw;right:-12vw;animation:drift2 26s ease-in-out infinite alternate}@keyframes drift1{to{transform:translate(6vw,5vw) scale(1.15)}}@keyframes drift2{to{transform:translate(-5vw,-4vw) scale(1.1)}}a{color:var(--accent);text-decoration:none}.app{min-height:100vh;display:flex;flex-direction:column;position:relative;z-index:1}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px clamp(18px,4vw,40px);position:sticky;top:0;z-index:30;background:#1712259e;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}.brand{font-weight:700;font-size:18px;color:var(--text);display:flex;align-items:center;gap:10px;letter-spacing:.2px}.brand-mark{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 6px 18px -6px var(--accent-glow);font-size:16px}.nav{display:flex;gap:4px}.nav a{color:var(--text-dim);font-size:14px;padding:8px 14px;border-radius:999px;transition:.2s var(--ease);position:relative}.nav a:hover{color:var(--text);background:var(--surface)}.nav a.active{color:var(--text);background:var(--accent-soft)}.content{flex:1;width:100%;max-width:var(--maxw);margin:0 auto;padding:40px clamp(18px,4vw,40px) 100px;position:relative}h1{font-size:clamp(28px,4vw,40px);margin:0 0 10px;letter-spacing:-.5px;line-height:1.15;font-weight:700}h2{font-size:clamp(20px,2.4vw,24px);margin:34px 0 14px;font-weight:700;letter-spacing:-.3px}h3{font-size:17px;margin:0 0 8px}h4{font-size:15px;margin:6px 0}p{margin:8px 0}.sub,.desc{color:var(--text-dim)}.meta{color:var(--text-faint);font-size:13px;margin-top:6px}.state{color:var(--text-dim);padding:60px 0;text-align:center}.card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;color:var(--text);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);position:relative;overflow:hidden}.card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(255,255,255,.18),transparent 40%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.5;pointer-events:none}.btn{background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:999px;padding:11px 20px;cursor:pointer;font-size:14px;font-weight:600;transition:transform .2s var(--ease),border-color .2s,background .2s,box-shadow .2s;font-family:inherit}.btn:hover{border-color:var(--border-strong);transform:translateY(-1px)}.btn:active{transform:translateY(0) scale(.98)}.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#1a1206;border:none;box-shadow:0 12px 30px -12px var(--accent-glow);font-weight:700}.btn.primary:hover{box-shadow:0 16px 38px -12px var(--accent-glow)}.btn.small{padding:8px 15px;font-size:13px;border-radius:999px}.btn.ghost{background:transparent}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.hero{position:relative;display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:center;padding:26px 0 18px}.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);background:var(--accent-soft);border:1px solid rgba(255,138,91,.25);padding:6px 14px;border-radius:999px;margin-bottom:18px;font-weight:600}.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.08}.hero h1 .grad{color:var(--accent);position:relative}.hero h1 .grad:after{content:"";position:absolute;left:0;right:0;bottom:.05em;height:.12em;background:linear-gradient(90deg,var(--accent),var(--accent-2));opacity:.35;border-radius:4px}.hero .lead{color:var(--text-dim);font-size:16px;max-width:46ch;margin-top:14px}.hero-cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}.hero-stats{display:flex;gap:22px;margin-top:30px}.hero-stats .hs b{display:block;font-size:26px;font-weight:800;color:var(--text)}.hero-stats .hs span{font-size:12px;color:var(--text-faint)}.hero-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:22px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow);position:relative;overflow:hidden}.hero-card .hc-title{font-size:13px;color:var(--text-dim);margin-bottom:14px;font-weight:600}.flow{display:flex;flex-direction:column;gap:10px}.flow-step{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:var(--radius-sm);background:var(--bg-soft);border:1px solid var(--border);font-size:14px;transition:transform .25s var(--ease),border-color .25s;cursor:default}.flow-step:hover{transform:translate(4px);border-color:var(--border-strong)}.flow-dot{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;font-size:15px;flex-shrink:0}.flow-step:nth-child(1) .flow-dot{background:var(--accent-soft)}.flow-step:nth-child(2) .flow-dot{background:var(--warn-soft)}.flow-step:nth-child(3) .flow-dot{background:var(--mint-soft)}.flow-step:nth-child(4) .flow-dot{background:var(--accent-soft)}.flow-arrow{text-align:center;color:var(--text-faint);font-size:14px}.section-head{display:flex;align-items:end;justify-content:space-between;margin:44px 0 8px}.section-head h2,.section-head .sub{margin:0}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;margin-top:18px}.course-card{cursor:pointer}.course-card:hover{transform:translateY(-4px);border-color:#ff8a5b66;box-shadow:var(--shadow)}.course-card h3{font-size:19px}.course-card p{color:var(--text-dim);font-size:14px}.course-card .cc-foot{display:flex;align-items:center;justify-content:space-between;margin-top:16px}.course-card .cc-arrow{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent);transition:.25s var(--ease)}.course-card:hover .cc-arrow{background:var(--accent);color:#1a1206;transform:translate(3px)}.course-thumb{height:76px;border-radius:var(--radius-sm);margin-bottom:16px;position:relative;overflow:hidden;background:linear-gradient(120deg,#ff8a5b40,#7fe1c42e)}.course-thumb:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.18),transparent 60%)}.chapter{margin-top:18px}.chapter h2{display:flex;align-items:center;gap:10px}.chapter h2:before{content:"";width:8px;height:8px;border-radius:3px;background:var(--accent);display:inline-block}.units{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}.unit-card{cursor:pointer;padding:16px 18px}.unit-card:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow-soft)}.unit-head{display:flex;justify-content:space-between;align-items:center;font-weight:600;gap:8px}.badge.done{background:var(--ok-soft);color:var(--ok);font-size:12px;padding:3px 10px;border-radius:999px;font-weight:700}.growth{margin:26px 0 8px;padding:22px 22px 8px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.growth-head{margin-bottom:18px}.growth-kicker{display:inline-block;font-weight:800;font-size:17px;color:var(--text);letter-spacing:-.3px}.growth-kicker:before{content:"";display:inline-block;width:8px;height:18px;border-radius:4px;background:linear-gradient(var(--accent),var(--mint));margin-right:10px;vertical-align:-3px}.growth-sub{color:var(--text-dim);font-size:13.5px;margin:8px 0 0;max-width:60ch}.growth-track{position:relative;padding-left:8px}.growth-track:before{content:"";position:absolute;left:19px;top:14px;bottom:22px;width:2px;background:linear-gradient(var(--accent),var(--mint));opacity:.35}.growth-node{display:flex;gap:16px;align-items:flex-start;padding:12px;border-radius:14px;text-decoration:none;color:inherit;transition:background .2s,transform .2s}.growth-node:hover{background:var(--surface-2);transform:translate(2px)}.growth-dot{position:relative;z-index:1;flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:800;background:var(--bg-soft);border:2px solid var(--border);color:var(--text-dim)}.growth-node.done .growth-dot{background:var(--ok);border-color:var(--ok);color:#0c0e14}.growth-node.active .growth-dot{background:var(--accent);border-color:var(--accent);color:#1a1020;box-shadow:0 0 0 4px #ff8a5b2e}.growth-body{flex:1}.growth-title{font-weight:700;font-size:15px;color:var(--text)}.growth-label{color:var(--text-dim);font-size:13px;margin:2px 0 4px}.growth-meta{font-size:12px;color:var(--text-faint);display:flex;align-items:center;gap:6px}.growth-state.done{color:var(--ok);font-weight:700}.growth-state.active{color:var(--accent);font-weight:700}.growth-state.locked{color:var(--text-faint)}.growth-sep{opacity:.5}.learn-head{padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--border);position:relative}.back{color:var(--text-dim);font-size:13px;display:inline-flex;align-items:center;gap:6px;transition:.2s}.back:hover{color:var(--text)}.learn-head h1{margin:12px 0 6px}.objectives{color:var(--text-dim);font-size:14px;padding-left:20px;margin:12px 0}.objectives li{margin:4px 0}.phase-info{margin-top:12px;font-size:13px;display:flex;gap:16px;flex-wrap:wrap}.phase-pill{display:inline-flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);padding:5px 12px;border-radius:999px}.phase-pill b{color:var(--accent)}.learn-body{font-size:15.5px}.learn-body table{border-collapse:collapse;width:100%;margin:16px 0;border-radius:var(--radius-sm);overflow:hidden}.learn-body th,.learn-body td{border:1px solid var(--border);padding:8px 12px;text-align:left}.learn-body th{background:var(--bg-soft)}.learn-body pre{background:#0d0a16b3;border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px;overflow:auto}.learn-body code{background:#0d0a16b3;padding:2px 6px;border-radius:5px;font-size:13px}.learn-body>*{margin:14px 0}.learn-body h2{font-size:23px;line-height:1.35;font-weight:800;margin:36px 0 14px;display:flex;align-items:center;gap:12px;letter-spacing:-.2px;scroll-margin-top:90px}.learn-body h2:before{content:"";width:8px;height:26px;border-radius:999px;flex:none;background:linear-gradient(180deg,var(--accent),var(--accent-2));box-shadow:0 0 16px var(--accent-glow)}.learn-body h3{font-size:18px;font-weight:700;margin:24px 0 10px;color:var(--text)}.learn-body p{color:var(--text-dim);font-size:15.5px}.learn-body ul,.learn-body ol{padding-left:22px;color:var(--text-dim)}.learn-body li{margin:7px 0}.learn-body strong{color:var(--accent);font-weight:700;background:var(--accent-soft);padding:1px 7px;border-radius:7px;box-shadow:inset 0 0 0 1px #ff8a5b38}.learn-body :not(pre)>code{background:var(--accent-soft);color:var(--accent-2);border:1px solid rgba(255,138,91,.25);padding:2px 7px;border-radius:7px;font-size:13.5px;font-weight:600}.learn-body blockquote{margin:18px 0;padding:18px 20px 16px;border-left:4px solid var(--mint);background:linear-gradient(90deg,var(--mint-soft),transparent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--text);font-size:16.5px;font-style:italic;position:relative}.learn-body blockquote:before{content:"☕ 导师说";position:absolute;top:-11px;left:16px;font-size:11px;font-weight:700;letter-spacing:.4px;color:var(--mint);background:var(--bg-soft);padding:2px 9px;border-radius:999px;font-style:normal}.scene{margin:18px 0 28px;display:flex;flex-direction:column;gap:14px}.scene-narration{color:var(--text-dim);font-size:15px;line-height:1.75;margin:0}.scene-bubble{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:16px 16px 16px 4px;padding:16px 18px 14px;max-width:560px}.scene-bubble.mentor{border-color:#7fe1c459;background:linear-gradient(135deg,var(--mint-soft),var(--surface))}.scene-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.4px;color:var(--mint);background:var(--bg-soft);padding:3px 9px;border-radius:999px;margin-bottom:8px}.scene-bubble p{margin:0;font-size:16px;color:var(--text);line-height:1.65}.scene-focus{background:radial-gradient(120% 140% at 0% 0%,var(--accent-soft),transparent 60%),var(--bg-soft);border:1px solid rgba(255,138,91,.4);border-radius:var(--radius);padding:20px 22px;box-shadow:0 18px 50px -24px var(--accent-glow)}.scene-focus-label{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;letter-spacing:1px;color:var(--accent);text-transform:uppercase}.scene-focus-label:before{content:"◎";font-size:13px}.scene-focus-lead{color:var(--text-dim);font-size:14.5px;margin:8px 0 2px}.scene-focus-q{color:var(--text);font-size:22px;font-weight:800;line-height:1.3;margin:4px 0 0;letter-spacing:-.3px;transform-origin:left center;animation:scenePulse 2.8s ease-in-out infinite}@keyframes scenePulse{0%,to{transform:scale(1)}50%{transform:scale(1.025)}}.scene-thought{align-self:flex-end;max-width:460px;position:relative;background:transparent;border:1px dashed rgba(255,138,91,.5);border-radius:16px 16px 4px;padding:14px 16px 12px}.scene-thought .scene-tag{color:var(--accent)}.scene-thought p{margin:0;color:var(--text-dim);font-size:14.5px;font-style:italic;line-height:1.6}.progress-rail{display:flex;gap:6px;margin:4px 0 22px;flex-wrap:wrap}.progress-rail .seg{height:5px;flex:1;min-width:26px;border-radius:999px;background:var(--surface);overflow:hidden}.progress-rail .seg.done{background:linear-gradient(90deg,var(--accent),var(--accent-2))}.learn-foot{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px;padding-top:22px;border-top:1px solid var(--border)}.block{border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;margin:20px 0;background:var(--bg-soft);position:relative;overflow:hidden;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}.block:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px}.checkpoint:before{background:var(--checkpoint)}.explore:before{background:var(--explore)}.challenge:before{background:var(--challenge)}.block.correct{border-color:#5fd6a066}.block:hover{transform:translateY(-3px);border-color:var(--border-strong);box-shadow:var(--shadow-soft)}.block-tag{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:.5px;margin-bottom:10px;padding:4px 11px;border-radius:999px}.checkpoint .block-tag{color:var(--checkpoint);background:var(--warn-soft)}.explore .block-tag{color:var(--explore);background:var(--mint-soft)}.challenge .block-tag{color:var(--challenge);background:var(--accent-soft)}.q-text{font-weight:600;margin:4px 0 12px;font-size:15.5px}.cp-scenario{background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-sm);padding:13px 15px;margin-bottom:14px;font-size:14px;color:var(--text-dim)}.cp-scenario p{margin:0}.cp-scenario-icon{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.4px;color:var(--checkpoint);border:1px solid var(--checkpoint);border-radius:5px;padding:2px 7px;margin-bottom:8px}.opts{display:flex;flex-direction:column;gap:9px}.opt{display:flex;align-items:center;gap:12px;text-align:left;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;cursor:pointer;color:var(--text);font-size:14px;transition:.18s var(--ease)}.opt:hover{border-color:var(--accent);transform:translate(3px);background:var(--surface-2)}.opt.sel{border-color:var(--accent);background:var(--accent-soft)}.opt.correct-opt{border-color:var(--ok);background:var(--ok-soft)}.opt:disabled{cursor:default;transform:none}.opt-idx{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;font-size:12px;font-weight:700;background:var(--bg-soft);color:var(--text-dim);flex-shrink:0;transition:.18s}.opt.sel .opt-idx,.opt.correct-opt .opt-idx{background:transparent;color:inherit}.inp,.reflect,.code{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);padding:11px 14px;font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s}.inp:focus,.reflect:focus,.code:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.reflect{min-height:76px;resize:vertical;margin:8px 0}.code{font-family:SF Mono,Consolas,monospace;min-height:120px;resize:vertical;margin:8px 0}.cp-actions{margin-top:14px;display:flex;align-items:center;gap:10px}.cp-ok{color:var(--ok);font-size:14px;font-weight:600;display:flex;align-items:center;gap:7px}.cp-ok-icon{font-size:17px}.cp-hint-bar{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--text-faint)}.cp-attempts{background:var(--surface);padding:4px 10px;border-radius:999px}.cp-feedback{margin-top:12px;padding:13px 15px;border-radius:var(--radius-sm);font-size:13.5px;line-height:1.7;border:1px solid transparent}.cp-feedback.ok{background:var(--ok-soft);color:var(--ok);border-color:#5fd6a040}.cp-feedback.wrong{background:var(--danger-soft);color:var(--danger);border-color:#ff7a8538}.cp-feedback-title{font-weight:700;margin-bottom:6px}.cp-reveal{margin-top:10px;padding-top:10px;border-top:1px dashed rgba(255,122,133,.3)}.cp-unlock{margin-top:10px;padding:11px 13px;border-radius:var(--radius-sm);background:var(--mint-soft);border:1px solid rgba(127,225,196,.25);color:var(--mint)}.cp-unlock-title{font-weight:700;margin-bottom:4px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#06070b9e;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px}.modal{background:#161a25db;border:1px solid var(--border-strong);border-radius:var(--radius);width:100%;max-width:580px;max-height:88vh;display:flex;flex-direction:column;box-shadow:var(--shadow);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);overflow:hidden}.modal-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}.modal-head h2{margin:0;padding:0;border:none;font-size:17px}.modal-body{padding:18px 22px;overflow:auto}.modal-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}.q{margin-bottom:20px}.q-title{font-weight:600}.q-inst{color:var(--text-dim);font-size:13px;margin:4px 0 8px}.result{text-align:center}.score-big{font-size:46px;font-weight:800;color:var(--accent)}.score-big span{font-size:20px;color:var(--text-dim)}.graded{list-style:none;padding:0;margin:14px 0 0}.graded li{padding:7px;border-radius:8px;margin-bottom:6px;font-size:14px}.graded li.ok{background:var(--ok-soft);color:var(--ok)}.graded li.no{background:var(--danger-soft);color:var(--danger)}.gain-modal{text-align:center;padding:30px}.gain-num{font-size:60px;font-weight:800;margin:12px 0;line-height:1}.gain-num.up{color:var(--ok)}.gain-num.down{color:var(--danger)}.gain-num.flat{color:var(--text-dim)}.gain-num.mastered{color:var(--ok);text-shadow:0 0 30px rgba(95,214,160,.4)}.gain-num span{font-size:26px}.hint{color:var(--text-dim);font-size:14px;margin-top:6px}.stats{display:flex;gap:14px;flex-wrap:wrap}.stat{flex:1;min-width:120px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.stat b{display:block;font-size:30px;font-weight:800;color:var(--accent)}.stat span{font-size:12px;color:var(--text-faint)}.row{display:flex;align-items:center;gap:12px;margin-bottom:14px}.row>span{color:var(--text-dim);font-size:14px;min-width:40px}.row .inp{max-width:260px}.mastery{width:100%;border-collapse:collapse;margin-top:14px;border-radius:var(--radius-sm);overflow:hidden}.mastery th,.mastery td{border:1px solid var(--border);padding:9px 12px;text-align:left;font-size:14px}.mastery th{background:var(--bg-soft)}.mastery td.up{color:var(--ok)}.mastery td.down{color:var(--danger)}.mastery td.flat{color:var(--text-dim)}.time-card .time-total{margin-left:auto;font-size:22px;font-weight:800;color:var(--accent)}.time-top{margin-top:16px;border-top:1px solid var(--border);padding-top:12px}.time-top-title{font-size:12px;color:var(--text-faint);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}.time-top-row{display:flex;justify-content:space-between;font-size:13px;padding:4px 0;color:var(--text-dim)}.time-top-name{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.time-top-ms{color:var(--text)}.wrongbook{display:flex;flex-direction:column;gap:12px;margin-top:8px}.wb-item{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--danger);border-radius:var(--radius-sm);padding:14px 16px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.wb-q{font-size:15px;line-height:1.5;margin-bottom:10px}.wb-unit{display:inline-block;font-size:11px;font-family:ui-monospace,Menlo,monospace;color:var(--mint);background:#7fe1c41f;border:1px solid rgba(127,225,196,.3);border-radius:6px;padding:1px 7px;margin-right:8px;vertical-align:middle}.wb-answers{display:flex;flex-direction:column;gap:6px;margin-bottom:10px}.wb-row{display:flex;align-items:center;gap:10px;font-size:14px}.wb-tag{font-size:11px;padding:2px 8px;border-radius:6px;flex-shrink:0}.wb-row.wrong .wb-tag{color:var(--danger);background:#ff6b6b1f;border:1px solid rgba(255,107,107,.3)}.wb-row.wrong span:last-child{color:var(--danger)}.wb-row.right .wb-tag{color:var(--ok);background:#7fe1c41f;border:1px solid rgba(127,225,196,.3)}.wb-row.right span:last-child{color:var(--ok)}.wb-redo{display:inline-block;font-size:13px;color:var(--accent);text-decoration:none}.wb-redo:hover{text-decoration:underline}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.block{animation:fadeInUp .4s var(--ease) both}@media (max-width: 760px){.hero{grid-template-columns:1fr}.hero-card{order:-1}.content{padding-top:28px}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}.ambient:before,.ambient:after{animation:none}html{scroll-behavior:auto}}
