:root{--ink:#151713;--acid:#d6ff62;--paper:#faf9f4;--muted:#71766b;--line:#d9ddcf;color:var(--ink);background:var(--paper)}body{font-family:Arial,"Microsoft YaHei",sans-serif}a{text-decoration:none}button{background:var(--ink);border-radius:4px;font-size:14px}button:hover{background:#3b4630}button.secondary{background:transparent;color:var(--ink)}.course-nav{display:flex;align-items:center;justify-content:space-between;padding:22px 5%;border-bottom:1px solid var(--line);gap:20px}.wordmark{font-size:18px;font-weight:900;letter-spacing:-.5px}.wordmark span{background:var(--acid);padding:3px 7px;margin-left:3px}.course-nav select{margin:0;max-width:245px;font-size:12px;background:transparent}.course-wrap{max-width:1260px;margin:auto;padding:0 35px}.course-hero{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;padding:65px 0;align-items:center}.course-hero h1{font-size:clamp(38px,4.7vw,72px);line-height:1.12;letter-spacing:-2px;margin:18px 0 24px}.course-hero .lead{max-width:560px;font-size:17px;color:#58604d;line-height:1.7}.statusline{font-size:11px;letter-spacing:.3px;line-height:1.8;margin:20px 0;color:#657055}.statusline::before{content:'●';color:#849b43;margin-right:7px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}.screen-frame{background:#1a2017;border-radius:11px;border:1px solid #434b3a;padding:15px;box-shadow:13px 17px 0 #dee6ce;transform:rotate(-1.5deg)}.screen-top{display:flex;align-items:center;gap:6px;color:#b4c59b;font:10px monospace;padding:0 0 13px}.screen-top i{width:6px;height:6px;border-radius:50%;background:#6c7e4e}.screen-frame img{width:100%;display:block;border-radius:5px}.screen-facts{padding:20px;background:#eef3e3;min-height:280px}.screen-facts h3{font-size:24px;margin:10px 0}.screen-facts p{font-size:13px}.micro-row{display:flex;gap:8px;flex-wrap:wrap;font:11px monospace}.micro-row span{padding:6px;border:1px solid #bac5ad}.course-band{display:flex;gap:15px;justify-content:space-between;flex-wrap:wrap;padding:23px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:12px;color:#6b7460}.course-section{padding:58px 0}.course-section h2{font-size:clamp(28px,3vw,43px);letter-spacing:-1px;margin:14px 0 25px}.course-section .section-intro{max-width:650px;color:#666e5d;font-size:14px}.watch-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:start}.watch-box{background:#10160f;color:#f0f6e7;border-radius:7px;padding:18px}.watch-box video{aspect-ratio:16/9;background:#0e140b;border-radius:4px}.watch-box h3{margin:19px 0 8px}.watch-box small{color:#b8c79f}.lesson-list{border-top:1px solid var(--line)}.lesson-button{display:flex;align-items:center;gap:15px;text-align:left;background:transparent;color:var(--ink);width:100%;border-bottom:1px solid var(--line);border-radius:0;padding:15px 4px;min-height:72px}.lesson-button:hover{background:#edf1e5}.lesson-button .index{font:12px monospace;color:#8e9b77}.lesson-button .lesson-name{flex:1}.lesson-button small{display:block;font-size:10px;font-weight:400;margin-top:4px}.lesson-button .play{border:1px solid #c9d4b8;border-radius:50%;width:30px;height:30px;display:grid;place-items:center;font-size:12px}.course-prices{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.price-card{border:1px solid var(--line);border-radius:8px;padding:28px;position:relative;background:#fff;display:flex;flex-direction:column;min-height:390px}.price-card.featured{background:var(--acid);border-color:#aacd40}.price-card .tier{font-size:20px;font-weight:700}.price-card .price{font-size:49px;letter-spacing:-2px;line-height:1.2;margin:22px 0 9px;font-weight:800}.price-card .currency{font:10px monospace;color:#647347}.price-card p{font-size:13px;line-height:1.9;margin:22px 0}.price-card .fine{font-size:11px;color:#58644a;margin-bottom:20px}.price-card button{margin-top:auto;width:100%}.course-footer{background:#141b11;color:#d9e6c8;padding:38px 5%;margin-top:25px;display:flex;gap:30px;justify-content:space-between;font-size:12px;line-height:1.8}.course-footer p{max-width:650px;color:#a5b593}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}.resource-panel{border:1px solid var(--line);border-radius:9px;padding:30px;background:#fff}.resource-panel .check{font-weight:400;font-size:12px}.resource-panel .check input{min-height:20px;width:20px}.resource-panel small{font-size:11px}.resource-panel button{margin:8px 0}.resource-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.resource-links a{border-bottom:1px solid #99a986;padding:10px 0;font-size:13px;min-height:44px}.poster-preview{display:block;max-width:550px;margin:25px auto}.poster-preview img{width:100%;height:auto;border:1px solid var(--line)}.policy-note{border-left:3px solid #9ab35d;padding:14px 18px;background:#edf2e3;font-size:12px;line-height:1.8;margin:22px 0}.source-code{white-space:pre;overflow:auto;background:#141d13;color:#cce3b3;padding:23px;border-radius:6px;font:12px/1.8 Consolas,monospace;max-height:420px}.code-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:15px}.code-tabs button{font-size:11px;min-height:44px;padding:8px 13px}.loading{padding:100px;text-align:center}#course-toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#1e2d17;color:#fff;padding:15px 22px;border-radius:7px;max-width:92vw;display:none;z-index:100;font-size:13px}#player-dialog{max-width:1100px;width:95vw;padding:27px;background:#faf9f4}#player-close{position:absolute;right:7px;top:7px;background:transparent;color:#172112;font-size:26px;padding:0;width:44px;height:44px}#player-content h2{padding-right:25px}#player-content video{max-height:70vh;background:#111}#player-content .result{font-size:13px;margin-top:20px}.simulation-receipt{background:#fff7cc;padding:22px;border:2px solid #c8ab28;margin:22px 0}.simulation-receipt strong{font-size:21px}.simulation-receipt pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px}.inline-state{font-size:12px;line-height:1.8;margin-top:12px}.sticky-course{display:none}
@media(max-width:850px){.course-wrap{padding:0 22px}.course-hero{grid-template-columns:1fr;gap:35px;padding:35px 0 42px}.course-hero h1{font-size:48px}.screen-frame{max-width:600px}.watch-layout{grid-template-columns:1fr}.course-prices{grid-template-columns:1fr}.price-card{min-height:0;padding:25px}.price-card button{margin-top:15px}.contact-grid{grid-template-columns:1fr}.course-section{padding:40px 0}.course-footer{flex-direction:column;padding-bottom:90px}.course-nav{padding:17px 20px;gap:12px}.course-nav select{max-width:180px}.sticky-course{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:20;padding:10px 18px;background:#fbfcf5ef;backdrop-filter:blur(12px);border-top:1px solid #d0dac2;gap:10px;align-items:center}.sticky-course a{flex:1;min-height:45px;display:grid;place-items:center;font-size:12px;background:#162511;color:#fff;border-radius:4px}.sticky-course a:first-child{background:var(--acid);color:#1c2816}.course-band{font-size:11px;gap:12px;justify-content:start}.course-hero .lead{font-size:15px}.poster-preview{max-width:450px}.price-card .price{font-size:44px}}
@media(max-width:420px){.wordmark{font-size:14px}.course-nav select{max-width:156px}.course-hero h1{font-size:40px}.course-wrap{padding:0 17px}.hero-actions button{font-size:12px}.resource-panel{padding:22px}.screen-frame{padding:10px}.source-code{font-size:10px;padding:14px}}