:root{--blue:#2e64d6;--ink:#16324d;--muted:#617691;--line:#d9e4f3;--bg:#f3f6fc;--white:#fff;--shadow:0 16px 42px rgba(28,62,106,.065)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer;background:#fff;border:1px solid var(--line);color:#254666;border-radius:12px;padding:10px 17px;min-height:44px}button:hover{background:#edf3ff;border-color:#97b3e9}a{color:#255aa7}button:focus-visible,a:focus-visible{outline:3px solid #90b5ff;outline-offset:3px}[hidden]{display:none!important}.site-header{max-width:1480px;margin:0 auto;padding:22px 28px;display:flex;align-items:center;justify-content:space-between;gap:18px}.site-header nav{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.site-header 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1fr;gap:20px;overflow:hidden;position:relative}.hero .eyebrow{color:#d3e5ff}.hero h1{margin:18px 0 14px;font-size:46px}.hero p{color:#deebff;font-size:17px;margin-bottom:18px}.hero .greeting{font-size:16px;color:#f3f8ff}.hero-stats{display:flex;align-items:center;gap:23px;flex-wrap:wrap;font-size:13px;color:#d1e1f9}.hero-stats b{font-size:28px;color:#fff;margin-right:5px}.hero-path{justify-self:end;align-self:center;display:grid;gap:22px;color:#e7f0ff}.hero-path span{display:flex;align-items:center;gap:14px}.hero-path i{background:#ffffff17;border:1px solid #ffffff36;color:#fff}.section-title{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:32px 0 18px}.section-title h2{margin:7px 0 0}.learning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.learning-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:425px}.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:23px}.category{font-size:11px;letter-spacing:.12em;color:#6a7f9c}.card-icon{background:#edf3ff;color:#3468b8;display:grid;place-items:center;border-radius:15px;width:56px;height:56px;font-size:26px;font-weight:650}.card-icon.bone{background:#f4f0e6;color:#796443}.card-icon.muscle{background:#eef2fb;color:#56668e}.learning-card p{font-size:15px;color:#637993;line-height:1.85}.card-tags{display:flex;gap:7px;flex-wrap:wrap;margin:1px 0 22px}.card-tags span{font-size:12px;background:#f2f6fc;color:#5d7695;padding:4px 9px;border-radius:7px}.learning-card .primary{margin-top:auto;width:100%;display:flex;justify-content:space-between;font-size:15px}.learning-card small{font-size:12px;color:#7d8da1;margin-top:12px;line-height:1.7}.sub-link{border:0;background:transparent;color:#466ca7;font-size:13px;margin:7px 0 -6px;min-height:35px}.load-note{background:#eaf1fc;border-radius:14px;margin:22px 0;display:flex;align-items:flex-start;gap:18px;padding:17px 22px;color:#567394}.load-note>span{flex-shrink:0;font-weight:650;color:#345e96}.load-note p{margin:0;font-size:14px}.scope{border:1px solid var(--line);border-radius:13px;padding:13px 19px;color:#5f7693;font-size:14px;background:#fff}.scope summary{cursor:pointer;font-weight:650}.scope p{margin-top:12px}.notice{margin-top:28px;padding:20px 24px;border:1px solid #dce5f2;border-radius:15px;background:#f9fbff;color:#617891;font-size:14px}.notice strong{color:#405e83}.notice p{margin:7px 0}.notice small{font-size:12px;line-height:1.8;display:block;color:#7a8ca2}.finish-layout{padding-top:20px}.finish-intro{margin-bottom:28px}.finish-intro h1{margin:15px 0}.finish-intro p{color:#68809e}.finish-card{padding:32px;border-radius:22px;background:#fff;border:1px solid var(--line)}.record-counts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.record-counts div{background:#f2f6fe;border-radius:14px;padding:21px;color:#6580a2}.record-counts b{display:block;font-size:32px;color:#235297}.export-actions{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0}.record-row{border-top:1px solid #e5ebf4;padding:16px 4px;color:#59718e;font-size:14px}.record-row b{color:#254768}.record-row small{display:block;color:#8796a8}footer{border-top:1px solid #dce5f1;padding:20px 28px;display:flex;gap:15px;flex-wrap:wrap;justify-content:space-between;color:#7b8fa8;max-width:1480px;margin:auto;font-size:12px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:12px 20px;border-radius:13px;background:#183653;color:#fff;box-shadow:0 9px 36px #132a4433;z-index:99;max-width:min(92vw,600px);font-size:14px}
@media(max-width:1050px){.hero{grid-template-columns:1fr}.hero-path{justify-self:start;grid-template-columns:1fr;gap:10px;font-size:14px}.hero-path i{padding:3px 9px}.welcome-art{padding:35px 28px}.entry-card{padding:30px 26px}.learning-card{padding:23px}h3{font-size:25px}.hero-stats{gap:15px}}
@media(max-width:760px){.site-header{padding:17px 18px;align-items:flex-start;flex-direction:column;gap:14px}.site-header nav{gap:8px}.site-header nav button{font-size:13px;padding:6px 11px;min-height:36px}.site-header nav>a{font-size:12px}main{padding:7px 16px 28px}.login-layout{grid-template-columns:1fr;min-height:0;gap:16px}.welcome-art{padding:27px 25px}.welcome-art h1{font-size:33px;margin:14px 0}.lead{font-size:15px;margin-bottom:20px}.route{gap:9px;margin-bottom:10px;font-size:14px}.route i{padding:2px 9px}.art-grid{display:none}.credit{margin-top:17px;margin-bottom:0}.entry-card{padding:24px}.hero{padding:27px 25px;border-radius:20px}.hero h1{font-size:35px}.hero p{font-size:15px}.hero .greeting{font-size:15px}.hero-path{display:none}.hero-stats{font-size:12px}.hero-stats b{font-size:24px}.section-title{margin:25px 0 15px}.section-title h2{font-size:24px}.section-title button{font-size:13px;padding:8px 11px;flex-shrink:0}.section-title .eyebrow{font-size:9px;letter-spacing:.06em}.learning-grid{grid-template-columns:1fr;gap:16px}.learning-card{min-height:0;padding:24px}.card-top{margin-bottom:13px}.learning-card h3{font-size:27px;margin-bottom:12px}.learning-card h3 br{display:none}.card-tags{margin-bottom:18px}.load-note{display:block;padding:16px 18px}.load-note p{margin-top:6px}.notice{padding:17px 18px;font-size:13px}h1{font-size:34px}.finish-card{padding:20px}.record-counts{gap:8px}.record-counts div{padding:14px 10px;font-size:12px}.record-counts b{font-size:26px}.export-actions button{flex:1;min-width:140px;font-size:14px}footer{padding:17px 18px;gap:8px}.privacy{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}