:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:#f4f7fb;--bg:#080b13;--panel:#101629c7;--panel-strong:#141d37eb;--line:#8de2ff2e;--cyan:#39e6ff;--green:#5cffb1;--violet:#9b7cff;--pink:#ff5bc8;--orange:#ffbd66;--muted:#a7b2c9;--danger:#ff5b7a;--shadow:0 24px 80px #00000059;background:#080b13;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 15% 10%, #39e6ff33, transparent 28rem), radial-gradient(circle at 85% 20%, #9b7cff38, transparent 30rem), radial-gradient(circle at 50% 85%, #5cffb11f, transparent 26rem), var(--bg);min-width:320px;margin:0}button,textarea,a{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.site-shell{min-height:100vh;position:relative;overflow:hidden}.grid-glow{pointer-events:none;opacity:.32;background-image:linear-gradient(#39e6ff1f 1px,#0000 1px),linear-gradient(90deg,#39e6ff1f 1px,#0000 1px);background-size:54px 54px;position:fixed;inset:0;-webkit-mask-image:radial-gradient(circle at 50% 20%,#000,#0000 72%);mask-image:radial-gradient(circle at 50% 20%,#000,#0000 72%)}.top-nav{z-index:10;border:1px solid var(--line);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#080b13b8;border-radius:22px;justify-content:space-between;align-items:center;gap:20px;width:min(1180px,100% - 32px);margin:18px auto 0;padding:12px 14px;display:flex;position:sticky;top:0;box-shadow:0 14px 50px #0000002e}.brand{align-items:center;gap:10px;min-width:max-content;display:flex}.brand-mark{background:linear-gradient(135deg, var(--cyan), var(--violet));color:#06111d;border-radius:14px;place-items:center;width:42px;height:42px;display:grid;box-shadow:0 0 28px #39e6ff59}.brand strong{letter-spacing:.08em;display:block}.brand small{color:var(--muted);font-size:12px}.top-nav nav{color:var(--muted);gap:24px;display:flex}.top-nav nav a:hover{color:#fff}.nav-cta{color:var(--green);background:#5cffb11f;border:1px solid #5cffb159;border-radius:999px;padding:10px 16px}main{width:min(1180px,100% - 32px);margin:0 auto}.hero{grid-template-columns:minmax(0,.92fr) minmax(420px,1.08fr);align-items:center;gap:36px;padding:86px 0 54px;display:grid}.hero-copy h1{letter-spacing:-.07em;max-width:760px;margin:18px 0;font-size:clamp(42px,7vw,78px);line-height:.96}.hero-lead{color:var(--muted);max-width:660px;font-size:18px;line-height:1.8}.eyebrow{color:var(--green);text-transform:uppercase;letter-spacing:.16em;align-items:center;gap:8px;font-size:12px;font-weight:800;display:inline-flex}.hero-actions,.panel-actions{flex-wrap:wrap;gap:12px;margin-top:26px;display:flex}.primary-btn,.ghost-btn{color:#06111d;background:linear-gradient(135deg, var(--green), var(--cyan));border:0;border-radius:16px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:14px 20px;font-weight:850;display:inline-flex;box-shadow:0 16px 38px #39e6ff40}.primary-btn:hover{transform:translateY(-1px);box-shadow:0 20px 44px #5cffb140}.ghost-btn{border:1px solid var(--line);color:#e9f1ff;box-shadow:none;background:#ffffff0a}.ghost-btn.compact{padding-inline:16px}.primary-btn.large{min-width:176px}.hero-metrics{color:#d6e2f9;flex-wrap:wrap;gap:10px;margin-top:28px;display:flex}.hero-metrics span{border:1px solid var(--line);background:#ffffff0b;border-radius:999px;align-items:center;gap:8px;padding:10px 12px;display:inline-flex}.game-panel{background:linear-gradient(145deg, #39e6ff1c, #9b7cff14 42%, #080b13db), var(--panel);box-shadow:var(--shadow), inset 0 1px 0 #ffffff12;border:1px solid #39e6ff38;border-radius:30px;padding:22px;position:relative}.game-panel:before{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(110deg,#0000,#39e6ff59,#0000 46%,#ff5bc833,#0000);padding:1px;position:absolute;inset:-1px;-webkit-mask-image:linear-gradient(#000 0 0),linear-gradient(#000 0 0);mask-image:linear-gradient(#000 0 0),linear-gradient(#000 0 0);-webkit-mask-position:0 0,0 0;mask-position:0 0,0 0;-webkit-mask-size:auto,auto;mask-size:auto,auto;-webkit-mask-repeat:repeat,repeat;mask-repeat:repeat,repeat;-webkit-mask-clip:content-box,border-box;mask-clip:content-box,border-box;-webkit-mask-origin:content-box,border-box;mask-origin:content-box,border-box;-webkit-mask-composite:xor;mask-composite:exclude;-webkit-mask-source-type:auto,auto;mask-mode:match-source,match-source}.panel-topline{color:var(--muted);justify-content:space-between;align-items:center;gap:14px;display:flex}.status-dot{background:var(--green);width:10px;height:10px;box-shadow:0 0 16px var(--green);border-radius:999px;margin-right:8px;display:inline-block}.timer-pill{color:var(--orange);background:#ffbd661a;border:1px solid #ffbd6652;border-radius:999px;align-items:center;gap:7px;padding:8px 12px;font-weight:850;display:inline-flex}.mode-tabs{border:1px solid var(--line);background:#0000002e;border-radius:18px;grid-template-columns:repeat(3,1fr);gap:8px;margin:18px 0;padding:6px;display:grid}.mode-tabs button{color:var(--muted);background:0 0;border:0;border-radius:13px;padding:11px 8px;font-weight:800}.mode-tabs button.active{color:#06111d;background:linear-gradient(135deg, var(--cyan), var(--green))}.stats-grid{grid-template-columns:repeat(4,1fr);gap:10px;display:grid}.stat-card{border:1px solid var(--line);text-align:center;background:#ffffff0b;border-radius:18px;padding:14px 10px}.stat-card strong{color:#fff;font-size:clamp(22px,3vw,32px);display:block}.stat-card span{color:var(--muted);font-size:12px}.text-track{color:#66738c;letter-spacing:.02em;word-break:break-word;background:#0408108f;border:1px solid #39e6ff2e;border-radius:22px;min-height:148px;margin:18px 0 14px;padding:18px;font-size:21px;line-height:1.78}.text-track span{transition:color 80ms,background 80ms}.text-track .correct{color:var(--green);text-shadow:0 0 12px #5cffb173}.text-track .wrong{color:var(--danger);background:#ff5b7a29;border-radius:4px}.text-track .cursor{border-bottom:2px solid var(--cyan);animation:.9s infinite blink}@keyframes blink{50%{border-color:#0000}}.typing-label{color:var(--muted);margin:0 0 8px;font-size:13px;display:block}textarea{resize:vertical;color:#ecf5ff;background:#03070eb8;border:1px solid #5cffb138;border-radius:18px;outline:none;width:100%;min-height:92px;padding:16px;line-height:1.6}textarea:focus{border-color:var(--green);box-shadow:0 0 0 4px #5cffb11f}textarea:disabled{opacity:.74;cursor:not-allowed}.progress-wrap{background:#ffffff14;border-radius:999px;height:10px;margin-top:14px;overflow:hidden}.progress-wrap span{border-radius:inherit;background:linear-gradient(90deg, var(--violet), var(--cyan), var(--green));height:100%;transition:width .2s;display:block}.verdict{color:#dfe9ff;background:#9b7cff1f;border:1px solid #9b7cff3d;border-radius:16px;align-items:center;gap:9px;margin-top:16px;padding:13px 14px;display:flex}.verdict.finished{color:#07131c;background:linear-gradient(135deg, var(--orange), var(--green));font-weight:850}.feature-strip{grid-template-columns:repeat(3,1fr);gap:18px;padding:30px 0 72px;display:grid}.feature-card,.mode-card,.feedback-card,.cta-section{border:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffff0b;border-radius:26px}.feature-card{padding:22px}.feature-icon{width:48px;height:48px;color:var(--cyan);background:#39e6ff1f;border-radius:16px;place-items:center;display:grid}.feature-card h3,.mode-card h3{margin:18px 0 8px;font-size:22px}.feature-card p,.mode-card p,.feedback-card p,.cta-section p{color:var(--muted);line-height:1.72}.showcase{padding:8px 0 72px}.section-heading{max-width:760px;margin-bottom:24px}.section-heading h2,.feedback-card h2,.cta-section h2{letter-spacing:-.04em;margin:12px 0;font-size:clamp(30px,4vw,48px);line-height:1.05}.mode-grid{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.mode-card{min-height:245px;padding:24px;position:relative;overflow:hidden}.mode-card svg{color:var(--green)}.mode-card.hot{background:linear-gradient(145deg,#ff5bc821,#39e6ff14)}.mode-card button{border:1px solid var(--line);color:#fff;background:#ffffff12;border-radius:999px;margin-top:12px;padding:10px 14px}.mode-card button:hover{border-color:var(--green);color:var(--green)}.feedback-section{padding:0 0 72px}.feedback-card{background:radial-gradient(circle at 100% 0,#5cffb11f,#0000 20rem),#ffffff0b;grid-template-columns:1fr 1fr;gap:24px;padding:32px;display:grid}.feedback-list{gap:12px;display:grid}.feedback-list p{border:1px solid var(--line);background:#03070e47;border-radius:16px;align-items:center;gap:10px;margin:0;padding:14px;display:flex}.feedback-list svg{color:var(--green);flex:none}.cta-section{background:linear-gradient(135deg,#39e6ff1f,#9b7cff17,#5cffb11f);justify-content:space-between;align-items:center;gap:24px;margin-bottom:46px;padding:34px;display:flex}.footer{border-top:1px solid var(--line);width:min(1180px,100% - 32px);color:var(--muted);justify-content:space-between;align-items:center;gap:24px;margin:0 auto;padding:28px 0 42px;display:flex}.footer strong{color:#fff}.footer p{margin:7px 0 0}.footer-links{gap:18px;display:flex}.footer-links a:hover{color:var(--green)}@media (width<=980px){.hero{grid-template-columns:1fr;padding-top:62px}.game-panel{width:100%;max-width:760px;margin:0 auto}.feature-strip,.mode-grid,.feedback-card{grid-template-columns:1fr}}@media (width<=720px){.top-nav{border-radius:18px;width:min(100% - 20px,1180px);margin-top:10px}.top-nav nav{display:none}.brand-mark{width:38px;height:38px}.nav-cta{padding:9px 12px}main,.footer{width:min(100% - 20px,1180px)}.hero{gap:24px;padding:42px 0 36px}.hero-copy h1{font-size:clamp(38px,12vw,58px)}.hero-lead{font-size:16px}.game-panel{border-radius:24px;padding:15px}.panel-topline{font-size:14px}.mode-tabs{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.text-track{min-height:136px;padding:14px;font-size:18px;line-height:1.72}textarea{min-height:110px;font-size:16px}.feature-strip,.showcase,.feedback-section{padding-bottom:48px}.feedback-card,.cta-section{border-radius:22px;padding:22px}.cta-section{flex-direction:column;align-items:stretch}.primary-btn,.ghost-btn{width:100%}.panel-actions .primary-btn,.panel-actions .ghost-btn{flex:160px}.footer{flex-direction:column;align-items:flex-start}.footer-links{flex-wrap:wrap}}