@charset "UTF-8";
:root{--ink:#18323a;--muted:#6b7b7c;--green:#23745d;--mint:#d9eee4;--line:#e1e7e3;--paper:#fff;--bg:#f5f7f3;--nav:#142e36;--amber:#a56d24;--red:#a7483e;font-family:Inter,"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none;font-size:15px;line-height:1.65}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #599982;outline-offset:4px}button{color:inherit}svg{flex-shrink:0}h1,h2,h3,p{margin:0}h1{font-size:34px;letter-spacing:-1.3px;line-height:1.3;font-weight:700}h2{font-size:21px;letter-spacing:-.5px;line-height:1.4}h3{font-size:17px;line-height:1.5}small{font-size:12px}.muted{color:var(--muted)}.caps{font-size:11px;letter-spacing:2px;font-weight:650}.tiny{font-size:12px}.skip{position:absolute;top:-80px;left:20px;background:#fff;z-index:20;padding:12px}.skip:focus{top:12px}.loading{padding:12vh 10vw}.shell{display:grid;grid-template-columns:228px minmax(0,1fr);min-height:100vh}
.sidebar{position:sticky;top:0;height:100vh;background:var(--nav);color:#fff;padding:34px 23px;display:flex;flex-direction:column}.brand{display:flex;gap:11px;align-items:center;color:#fff;margin:0 7px 47px}.brand img{width:39px;height:39px}.brand strong{font-size:19px;letter-spacing:2px;display:block}.brand small{display:block;color:#9aaeb0;font-size:9px;letter-spacing:1.8px}.nav-label{color:#779399;margin:0 14px 12px;font-size:10px;letter-spacing:2px}.nav{display:flex;flex-direction:column;gap:8px}.nav a{display:flex;gap:12px;align-items:center;color:#a9bdbe;padding:12px 15px;border-radius:8px;min-height:47px;font-size:14px;transition:background .15s}.nav a:hover{text-decoration:none;background:#ffffff0a;color:#fff}.nav a.active{background:#2d4a4c;color:#e5f3eb}.nav a.active:after{content:"";width:5px;height:5px;border-radius:50%;background:#9bd5b5;margin-left:auto}.nav-badge{font-size:10px;background:#ffffff12;border-radius:12px;padding:0 7px;margin-left:auto}.side-course{margin-top:45px;padding:20px 15px;border-top:1px solid #ffffff16}.side-course p{font-size:12px;color:#a9bdbe;margin-top:10px}.side-progress{height:4px;background:#ffffff18;border-radius:3px;margin-top:15px;overflow:hidden}.side-progress span{display:block;background:#91c4a6;height:100%}.side-footer{margin-top:auto;padding:25px 13px 0;color:#89a0a4;font-size:11px}.side-footer .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#80bba0;margin-right:6px}
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p{font-size:13px;margin-top:9px;color:var(--muted)}.eyebrow{font-size:11px;letter-spacing:1.8px;color:var(--green);font-weight:650;margin-bottom:10px}.day-indicator{border:1px solid var(--line);padding:7px 12px;font-size:12px;border-radius:7px;background:#fff;white-space:nowrap;display:flex;gap:8px;align-items:center}.day-indicator strong{font-size:17px;color:var(--green)}.page-grid{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:26px}.main-column{min-width:0}.panel{background:var(--paper);border:1px solid var(--line);border-radius:12px}.hero{padding:25px 29px;background:#eaf0e8;border:1px solid #dfe8db;border-radius:12px;position:relative;overflow:hidden;min-height:191px}.hero-tag{font-size:11px;color:#54745d;display:flex;gap:9px;align-items:center;margin-bottom:14px}.hero-tag span{font-size:10px;border:1px solid #cad9c8;border-radius:4px;padding:1px 7px}.hero h2{font-size:26px;max-width:85%;line-height:1.45}.hero p{color:#607369;font-size:12px;margin-top:12px;max-width:80%}.hero-number{position:absolute;right:18px;bottom:-34px;font-family:Georgia,serif;font-size:165px;font-weight:400;line-height:1;color:#cbdac8;opacity:.8;pointer-events:none}.hero>*:not(.hero-number){position:relative;z-index:1}.hero-meta{display:flex;gap:17px;margin-top:20px;font-size:11px;color:#52685b}.hero-meta span{display:flex;gap:5px;align-items:center}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:22px 0 29px}.step{display:flex;align-items:center;gap:8px;font-size:12px;color:#88908b;position:relative}.step:not(:last-child):after{content:"";height:1px;background:#dce3dc;flex:1;margin:0 12px}.step-number{width:23px;height:23px;border:1px solid #d6ddd6;display:grid;place-items:center;border-radius:50%;font-size:10px;background:#fff}.step.current{color:var(--green)}.step.current .step-number,.step.done .step-number{background:var(--green);border-color:var(--green);color:#fff}.step.done{color:var(--green)}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:26px 0 14px}.section-title h2{font-size:17px}.section-title span{font-size:11px;color:var(--muted)}.video-card{display:flex;gap:18px;padding:19px;margin-bottom:12px;align-items:center}.video-art{width:125px;min-height:116px;align-self:stretch;border-radius:7px;background:#183c45;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}.video-art svg.wave{position:absolute;opacity:.4;width:160px;color:#79c5ba}.video-art.alt{background:#e9eee5}.video-art.alt svg.wave{color:#7c9c76}.play{width:37px;height:37px;display:grid;place-items:center;border-radius:50%;background:#ffffff23;color:#fff;border:1px solid #ffffff2b;position:relative}.alt .play{background:#fff;color:#456e5d;border-color:#d7e2d2}.video-art 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16px;border-radius:7px;min-height:43px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:12px;font-weight:550;text-align:center;text-decoration:none}.btn:hover{background:#f1f6f1;text-decoration:none}.btn.primary{background:var(--green);border-color:var(--green);color:#fff}.btn.primary:hover{background:#1b5d49}.btn.ghost{background:transparent;color:var(--muted)}.btn.danger{color:var(--red);border-color:#e7c5bf}.btn.wide{width:100%}.action-row{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-top:19px}.action-row small{color:var(--muted);font-size:10px}.goal-panel{padding:22px}.goal-panel h3{font-size:14px}.goal-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:13px}.goal-list li{display:flex;align-items:flex-start;gap:9px;font-size:12px;color:#607169;line-height:1.8}.goal-list 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.quiz-panel{padding:25px;margin-top:27px;scroll-margin-top:25px}.quiz-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}.quiz-head h2{font-size:18px}.pill{font-size:10px;padding:3px 9px;border-radius:5px;background:#edf3e9;color:#5d7755;white-space:nowrap}.pill.amber{background:#fbf1dd;color:var(--amber)}.pill.gray{background:#f0f2ef;color:#7d877f}.locked{padding:26px;text-align:center;border:1px dashed #d6dfd2;border-radius:8px;color:var(--muted);font-size:12px}.locked svg{display:block;margin:0 auto 10px;color:#91a18e}.question{border-top:1px solid var(--line);padding:24px 0 6px}.question:first-of-type{border-top:none}.question legend{padding:0;margin-bottom:13px;font-size:14px;font-weight:550;line-height:1.8;width:100%}.question 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var(--line);border-radius:12px;padding:27px;max-width:460px;width:100%;box-shadow:0 24px 100px #10242a30}.modal h2{font-size:21px;margin-bottom:13px}.modal p{font-size:13px;color:var(--muted);line-height:1.9}.modal .action-row{justify-content:flex-end}.modal strong{color:var(--ink)}#toast{position:fixed;bottom:27px;left:calc(50% + 100px);transform:translateX(-50%);padding:12px 19px;color:#fff;background:#183931;border-radius:8px;font-size:12px;box-shadow:0 5px 30px #18393124;z-index:200;max-width:90vw;pointer-events:none;opacity:0;transition:opacity .2s}#toast.show{opacity:1}.hidden{display:none!important}.mobile-brand{display:none}#import-file{display:none}
@media(min-width:1440px){.workspace{padding:0 68px 45px}.page-grid{grid-template-columns:minmax(0,1fr) 290px;gap:32px}}
@media(max-width:1120px){.workspace{padding:0 30px 36px}.shell{grid-template-columns:192px minmax(0,1fr)}.sidebar{padding:30px 16px}.brand{margin-left:0;gap:8px}.brand strong{font-size:17px}.page-grid{grid-template-columns:minmax(0,1fr) 224px;gap:18px}.hero{padding:23px}.hero h2{font-size:24px}.video-card{gap:13px;padding:15px}.video-art{width:90px}.goal-panel,.week-panel{padding:17px}.topbar{height:76px}.video-info h3{font-size:14px}h1{font-size:30px}}
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