:root{--bg:#f7f6f1;--paper:#fff;--ink:#172c42;--muted:#66788a;--line:#e4e8e8;--blue:#2563eb;--pale:#eaf1ff;--green:#0a7a52;--amber:#8b5815;--red:#b23b40;--shadow:0 9px 26px #1f293710}*{box-sizing:border-box}html{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}body{margin:0;min-height:100vh}button,select,input{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.45;cursor:not-allowed}.wrap{max-width:1180px;margin:auto;padding:20px 26px 50px}header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;flex-wrap:wrap}.brand{display:flex;gap:11px;align-items:center;font-weight:800;font-size:20px;letter-spacing:.3px}.logo{display:grid;place-items:center;border-radius:13px;background:#e1ebff;width:40px;height:40px;font-size:22px}.nav{display:flex;gap:7px}.nav button{border:1px solid var(--line);border-radius:11px;padding:9px 15px;background:#fff;color:#4a5b6e;font-weight:650}.nav button.active{background:var(--ink);color:#fff;border-color:var(--ink)}h1{font-size:clamp(23px,3.4vw,37px);letter-spacing:-.7px;margin:0 0 8px}h2{margin:0 0 11px;font-size:20px}p{line-height:1.7;margin:4px 0 15px}.muted{color:var(--muted)}.micro{font-size:12px}.small{font-size:14px}.card{background:var(--paper);border:1px solid #eaebec;border-radius:22px;padding:21px;box-shadow:var(--shadow)}.stack{display:grid;gap:16px}.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(245px,.7fr);gap:16px}.hero-main{background:linear-gradient(120deg,#f3f7ff,#fff);padding:30px}.eyebrow{text-transform:uppercase;color:#4972ba;letter-spacing:1.5px;font-size:12px;font-weight:850;margin-bottom:14px}.big-num{font-size:45px;font-weight:800;letter-spacing:-2px}.summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.metric{border:1px solid var(--line);border-radius:15px;padding:16px}.metric b{display:block;font-size:26px;margin:8px 0 2px}.btn{border:1px solid #d4dce5;background:white;color:var(--ink);border-radius:12px;padding:12px 16px;min-height:44px;font-weight:700}.btn.primary{background:var(--blue);color:white;border-color:var(--blue)}.btn.soft{background:#edf3ff;color:#1d55bb;border-color:#e6edff}.btn.danger{color:var(--red)}.btn.full{width:100%}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.day-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}.day{border:1px solid var(--line);border-radius:12px;background:#fff;min-height:68px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--ink)}.day.completed{border-color:#bbdfd0;background:#f0fbf6;color:var(--green)}.day.started{border-color:#b8ceff;background:#eef4ff}.day-num{font-size:19px;font-weight:800}.day-tag{font-size:11px;color:var(--muted);white-space:nowrap}.weeks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.week-label{font-size:14px;font-weight:750;margin-bottom:9px}.status{display:inline-flex;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:750;background:#ecf2ff;color:#3261aa}.progress-dots{display:flex;gap:7px;margin:14px 0 20px}.dot{height:8px;flex:1;background:#e5eaf0;border-radius:10px}.dot.on{background:var(--blue)}.question{display:flex;align-items:center;gap:12px;justify-content:flex-start;flex-wrap:wrap;margin:11px 0 12px}.question-number{display:inline-flex;align-items:center;justify-content:center;min-width:66px;padding:8px 11px;border-radius:10px;background:#edf3ff;color:#2456a6;font-size:14px;font-weight:800;white-space:nowrap}.math{font-size:clamp(26px,3.6vw,43px);font-weight:780;letter-spacing:.2px;overflow-wrap:anywhere}.answer-panel{border:1px solid #dfe7f2;background:#f9fbff;border-radius:14px;padding:14px 16px;margin:12px 0 14px}.answer-panel label{display:block;font-size:13px;font-weight:750;color:#52647c;margin-bottom:8px}.answer-input{display:block;width:100%;min-height:48px;border:1.5px solid #cbd7e7;border-radius:11px;background:#fff;padding:10px 13px;font-size:21px;font-weight:700;color:var(--ink);outline:none}.answer-input:focus{border-color:#5687e8;box-shadow:0 0 0 3px #2563eb18}.answer-hint{font-size:12px;color:var(--muted);margin-top:7px;line-height:1.5}.answer-original{font-size:14px;color:#52647c;margin-bottom:9px}.answer-original strong{color:var(--ink);font-size:17px}.answer-review{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:10px 0 13px}.answer-chip{background:#f7f9fc;border:1px solid var(--line);border-radius:10px;padding:9px}.answer-chip b{display:block;font-size:15px;margin-top:4px;overflow-wrap:anywhere}.answer-status{font-size:12px;font-weight:800;margin-top:7px}.answer-status.ok{color:var(--green)}.answer-status.no{color:var(--red)}.hand-panel{overflow:hidden;border:2px solid #dce5f1;border-radius:15px;background:#fff}.hand-top{padding:10px 16px;display:flex;justify-content:space-between;align-items:center;background:#f8fbff;font-size:13px;color:#6c7c93;gap:6px;flex-wrap:wrap}.canvas-wrap{background-color:#fff;background-image:linear-gradient(180deg,transparent 92%,#f2f5fa 92%);background-size:100% 54px}.draw{display:block;width:100%;height:auto;aspect-ratio:1200/560;touch-action:none;cursor:crosshair}.bottom{margin-top:15px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.note{background:#f7f9fe;border:1px solid #e9efff;border-radius:13px;padding:14px 16px;color:#465a76;font-size:14px;line-height:1.65}.check-columns{display:grid;grid-template-columns:1fr 1fr;gap:10px}.preview{width:100%;aspect-ratio:1200/560;display:block;background:repeating-linear-gradient(#fff,#fff 39px,#f2f5fa 40px);border:1px solid var(--line);border-radius:10px}.review-item{padding:19px;border:1px solid var(--line);border-radius:16px;margin-bottom:13px}.review-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:10px;flex-wrap:wrap}.review-top strong{font-size:19px}.tag{color:var(--muted);font-size:12px}.seg{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}.seg button{border:1px solid #dce3ee;background:#fff;border-radius:10px;padding:10px 12px;font-size:13px;font-weight:700}.seg button.selected{background:var(--pale);border-color:#85aaf6;color:#1551a3}.row-end{display:flex;justify-content:flex-end;gap:8px;align-items:center;flex-wrap:wrap}.field{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.field select{border:1px solid var(--line);background:white;border-radius:9px;padding:9px;min-height:43px;color:var(--ink)}.bars{display:flex;align-items:flex-end;gap:7px;height:145px;padding:8px 0 0}.bar-outer{min-width:0;flex:1;display:flex;flex-direction:column;align-items:center;gap:5px}.bar-stack{width:min(100%,36px);height:110px;border-radius:7px 7px 0 0;background:#eef1f4;display:flex;flex-direction:column-reverse;overflow:hidden}.bar-initial{background:#4388dd}.bar-fixed{background:#77c9a1}.bar-label{font-size:10px;color:var(--muted)}.pill{display:inline-flex;align-items:center;border:1px solid var(--line);padding:5px 10px;border-radius:50px;font-size:12px;font-weight:700}.legend{display:flex;gap:15px;align-items:center;flex-wrap:wrap}.legend i{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:5px}.footer-note{margin-top:26px;color:var(--muted);font-size:12px;line-height:1.7}.empty{padding:30px;text-align:center;color:var(--muted)}.hidden{display:none!important}
@media(max-width:850px){.hero,.weeks{grid-template-columns:1fr 1fr}.hero-main{padding:24px}.wrap{padding:14px 15px 38px}}
@media(max-width:650px){.hero,.weeks,.check-columns{grid-template-columns:1fr}.answer-review{grid-template-columns:1fr}.card{padding:16px}.summary{grid-template-columns:repeat(3,1fr)}.metric{padding:11px}.metric b{font-size:21px}.math{font-size:25px}.draw{aspect-ratio:1200/680}.wrap{padding:11px 12px 30px}.brand{font-size:17px}.nav button{padding:8px 11px}.review-item{padding:12px}}

.seven{grid-template-columns:repeat(7,minmax(0,1fr))}.history{margin:5px 0;text-align:left}#connection{margin:-8px 0 15px;min-height:20px}#notice{position:sticky;bottom:12px;z-index:5;background:#edf3ff;border-radius:12px;padding:12px;font-size:14px}#notice:empty{display:none}.preview{aspect-ratio:1200/560}button:focus-visible{outline:3px solid #72a1fa;outline-offset:2px}.draw{user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;aspect-ratio:1200/560}@media(display-mode:standalone){.wrap{padding-top:max(20px,env(safe-area-inset-top));padding-bottom:max(35px,env(safe-area-inset-bottom))}}@media(max-width:650px){.seven{gap:4px}.seven .day{min-width:0;min-height:76px}.day-num{font-size:17px}.bar-label{font-size:8px}.bars{gap:3px}.brand{font-size:16px}.nav{flex-wrap:wrap}.draw{aspect-ratio:1200/560}}

.confirm-dialog{border:1px solid #dce5f1;border-radius:20px;padding:26px;max-width:min(460px,90vw);color:var(--ink);box-shadow:0 20px 60px #172c4233}.confirm-dialog::backdrop{background:#172c4266}

.day.rest-day{background:#f1f2f4;border-color:#e6e8eb;color:#8a95a3}.day.rest-day:disabled{opacity:1;cursor:default}.day.rest-day .day-num{font-size:18px;font-weight:600}.rest-bar .bar-stack{background:#e2e5e9}.rest-bar .bar-label{color:#8a95a3}