:root{color-scheme:light;--ink:#16342f;--green:#17634c;--soft:#eef3e9;--muted:#5a6d65;--line:#d6e0d6;--paper:#fafbf6}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 system-ui,-apple-system,'Microsoft YaHei',sans-serif}a{color:var(--green);text-underline-offset:4px}button,input,select{font:inherit}button,.button{display:inline-block;border:0;background:var(--green);color:white;border-radius:10px;padding:12px 23px;font-weight:650;text-decoration:none;cursor:pointer}button:hover,.button:hover{filter:brightness(.92)}button:disabled{opacity:.65;cursor:default}.secondary{background:white;color:var(--ink);border:1px solid var(--line)}:focus-visible{outline:3px solid #df9a27;outline-offset:3px}header{max-width:1180px;margin:auto;padding:24px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line)}header .brand{font-size:22px;font-weight:800;text-decoration:none;color:var(--ink)}nav{display:flex;gap:22px;flex-wrap:wrap}nav a{text-decoration:none;font-size:14px}main{max-width:1120px;margin:auto;padding:0 24px 60px}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:60px;align-items:center;padding:65px 0 50px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:750;color:var(--green)}h1{font-size:clamp(36px,5vw,62px);line-height:1.2;letter-spacing:-2px;margin:16px 0 24px}h1 em{font-style:normal;color:var(--green)}.lead{font-size:18px;color:var(--muted);max-width:560px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.small{font-size:13px;color:var(--muted)}.road-card{background:#e7efdf;border-radius:24px;padding:32px;position:relative;overflow:hidden}.road-card .route{font-size:100px;line-height:1.3;font-weight:900;letter-spacing:-5px;color:#17634c}.road-card .line{height:5px;border-top:5px dashed #8d9d76;transform:rotate(-7deg);margin:32px -55px}.road-card p{margin:0}.badge{background:white;border-radius:30px;padding:5px 12px;font-size:12px;display:inline-block}.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:36px;padding:20px 0}.stats strong{font-size:26px;display:block}.stats div{padding-left:22px;border-left:1px solid var(--line)}.stats div:first-child{border:0;padding:0}.section-title{display:flex;justify-content:space-between;align-items:center;gap:12px}h2{font-size:26px;line-height:1.4}h3{font-size:18px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{border:1px solid var(--line);border-radius:16px;padding:24px;background:white}.card .number{color:var(--green);font-size:12px;font-weight:750}.card p{font-size:14px;color:var(--muted)}.card button{width:100%}.workbench{margin:36px 0;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;scroll-margin-top:20px}.tools{display:flex;gap:12px;flex-wrap:wrap;align-items:center}select,input[type=date],input[type=search]{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:10px;max-width:100%}.quiz-top{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}progress{width:100%;height:7px;accent-color:var(--green)}.question{font-size:24px;line-height:1.5;margin:22px 0}.options{display:grid;gap:12px}.option{background:var(--paper);color:var(--ink);text-align:left;border:1px solid var(--line);padding:16px}.option.selected{border:2px solid var(--green);background:var(--soft)}.option.correct{border:2px solid #267452;background:#edf8f0}.option.wrong{border:2px solid #b8463d;background:#fff0ec}.explanation{margin:22px 0;padding:20px;background:var(--soft);border-radius:12px}.quiz-actions{display:flex;justify-content:space-between;gap:12px;margin-top:24px}.plan{margin:40px 0;padding:30px;background:var(--soft);border-radius:20px;display:grid;grid-template-columns:1fr 1fr;gap:30px}.status{font-size:14px;color:var(--muted);min-height:24px}.bank-list details{border-bottom:1px solid var(--line);padding:16px 0}.bank-list summary{cursor:pointer;font-weight:600}.bank-list p{color:var(--muted)}.banner{background:var(--ink);color:white;padding:32px;border-radius:20px;margin:40px 0}.banner p{color:#d2e1d7}.banner a{color:#e6f1d4}.history{padding-left:20px}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px}footer{border-top:1px solid var(--line);padding:30px 24px;text-align:center;color:var(--muted);font-size:13px}dialog{border:1px solid var(--line);border-radius:18px;max-width:600px;padding:30px}dialog::backdrop{background:#16342f88}[hidden]{display:none!important}@media(max-width:720px){header{align-items:flex-start}header nav{gap:10px}.hero{grid-template-columns:1fr;gap:25px;padding:38px 0}.road-card{display:none}.grid{grid-template-columns:1fr}.plan{grid-template-columns:1fr}.workbench{padding:18px}.question{font-size:21px}.stats strong{font-size:22px}.stats{font-size:12px}.stats div{padding-left:12px}main{padding:0 16px 40px}.tools button{padding:10px 14px}.section-title{align-items:flex-start}}

.price-tag strong{font-size:48px;line-height:1.2}.price-tag span{display:inline-block;margin-left:12px;color:var(--muted)}

.topic-controls{margin-top:16px}.bank-pagination{align-items:center;justify-content:center;margin-top:24px}.bank-pagination button{padding:9px 18px}

header{flex-wrap:wrap}.language-picker{display:flex;align-items:center;gap:8px;margin-left:auto;font-size:13px}.language-picker select{max-width:175px;padding:7px 10px;font-size:14px}header nav{gap:14px}@media(max-width:720px){header nav{max-width:100%}.language-picker{margin-left:0}}