:root{color-scheme:dark;--bg:#07131f;--panel:#0d2130;--panel2:#112b3d;--ink:#eaf3f8;--muted:#a4bac8;--line:#294251;--accent:#ff8d75;--cyan:#25d7d0;--sidebar:282px;--header:68px;--mono:Consolas,"Cascadia Code",monospace}
*{box-sizing:border-box}html{scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;font-size:17px;line-height:1.8}body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;background-image:linear-gradient(#78b0c006 1px,transparent 1px),linear-gradient(90deg,#78b0c006 1px,transparent 1px);background-size:44px 44px}a{color:var(--cyan);text-underline-offset:4px}button,input,select,textarea{font:inherit}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;border:1px solid var(--line);border-radius:8px;background:var(--panel2);color:var(--ink);font-size:14px;line-height:1.5;text-decoration:none;cursor:pointer;min-height:42px}button:hover,.button:hover{border-color:var(--accent)}button.primary,.button.primary{background:var(--accent);border-color:var(--accent);color:#1d1e26;font-weight:700}button:disabled{opacity:.5;cursor:default}input,textarea,select{min-width:0;max-width:100%;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--ink);padding:9px 12px}input[type=checkbox]{width:20px;height:20px;accent-color:var(--accent);vertical-align:middle}textarea{resize:vertical;width:100%;line-height:1.7}::selection{background:#ff8d7540}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(28px,3.5vw,42px);line-height:1.25;letter-spacing:-.03em;margin-bottom:16px}h2{font-size:24px;line-height:1.4}h3{font-size:19px;line-height:1.5}p{margin-bottom:14px}small,.muted{color:var(--muted)}[hidden]{display:none!important}.skip-link{position:fixed;top:-70px;left:10px;z-index:100;background:var(--accent);color:var(--bg);padding:10px}.skip-link:focus{top:8px}.topbar{position:fixed;inset:0 0 auto;z-index:50;height:var(--header);display:flex;align-items:center;gap:22px;padding:0 26px;background:#07131ff5;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:700;color:var(--ink);text-decoration:none;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--accent);border-radius:9px;color:var(--accent);font-family:var(--mono);background:#ff8d7510}.local-badge{font-size:12px;color:var(--muted);border-left:1px solid var(--line);padding-left:22px}.top-actions{display:flex;gap:8px;margin-left:auto}.menu-toggle{display:none}.sidebar{position:fixed;top:var(--header);bottom:0;left:0;width:var(--sidebar);background:#091925;border-right:1px solid var(--line);padding:25px 0;overflow-y:auto;z-index:40;scrollbar-width:thin;scrollbar-color:var(--line) transparent}.sidebar-title{padding:0 23px}.eyebrow{display:block;color:var(--accent);font:11px var(--mono);letter-spacing:.15em;margin-bottom:12px}.sidebar h2{font-size:19px;margin-bottom:6px}.sidebar p{font-size:12px;color:var(--muted)}.search-box{display:flex;align-items:center;gap:9px;border:1px solid var(--line);margin:20px 18px;padding:0 10px;border-radius:7px;color:var(--muted)}.search-box input{width:100%;border:0;background:transparent;font-size:13px;padding:9px 0}.nav-group{margin-bottom:15px}.nav-group h3{padding:0 23px;font-size:11px;color:var(--muted);letter-spacing:.12em;font-weight:400;margin:16px 0 6px}.nav-link{display:flex;gap:10px;align-items:center;text-decoration:none;color:#b8cbd5;font-size:13px;padding:9px 19px;border-left:3px solid transparent;line-height:1.55}.nav-link:hover{background:var(--panel)}.nav-link.active{background:linear-gradient(90deg,#ff8d751c,transparent);border-left-color:var(--accent);color:var(--ink)}.nav-code{font:11px var(--mono);color:var(--muted);min-width:21px}.nav-link.is-done .nav-code{color:var(--cyan)}.nav-empty{font-size:13px;margin:20px;color:var(--muted)}.sidebar-foot{display:grid;gap:12px;padding:20px 23px;border-top:1px solid var(--line);margin-top:23px;font-size:13px}.sidebar-foot span{font-size:11px;color:var(--muted)}.content{margin:var(--header) 0 0 var(--sidebar);padding:38px clamp(22px,4vw,62px) 90px;min-height:calc(100vh - var(--header));outline:none}.page{max-width:1120px;margin:0 auto}.page-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:26px}.page-head .eyebrow{margin-bottom:14px}.page-head p{max-width:750px;color:var(--muted);margin-bottom:0}.headline-row{display:flex;align-items:center;justify-content:space-between;gap:18px}.mode-picker{display:flex;border:1px solid var(--line);border-radius:9px;padding:4px;flex-shrink:0}.mode-picker button{border:0;background:transparent;font-size:12px;min-height:34px;padding:7px 10px}.mode-picker .selected{background:var(--panel2);color:var(--accent)}.card{background:linear-gradient(145deg,#102737,#0c1f2e);border:1px solid var(--line);border-radius:12px;padding:26px 28px;margin-bottom:22px;min-width:0}.card h2{margin-bottom:16px}.card p:last-child{margin-bottom:0}.focus-card{border-top:3px solid var(--accent);display:grid;grid-template-columns:1fr auto;gap:25px;align-items:center}.focus-card h2{font-size:27px;margin:6px 0 10px}.label{font:12px var(--mono);letter-spacing:.09em;color:var(--accent)}.focus-card p{color:var(--muted);font-size:15px}.focus-aside{display:grid;justify-items:center;gap:9px;border-left:1px solid var(--line);padding-left:27px}.focus-aside strong{font:44px var(--mono);color:var(--accent)}.focus-aside span{font-size:12px;color:var(--muted)}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}.overview-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:20px}.overview-grid .card{height:100%;margin:0}.rule-note{font-size:13px;color:var(--muted);margin-top:22px;padding:15px 18px;border:1px dashed var(--line);border-radius:8px}.notice{background:#ff8d750b;border-left:3px solid var(--accent);padding:14px 17px;color:#ebc2b7;font-size:14px;margin-bottom:24px;border-radius:0 7px 7px 0}.notice a{color:var(--cyan)}.notice strong{color:var(--ink)}.week-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.week-tile{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:19px 22px}.week-title{display:flex;gap:15px;align-items:flex-start;margin-bottom:13px}.week-no{color:var(--accent);font:26px var(--mono)}.week-tile h3{margin:0 0 3px;font-size:17px}.week-tile small{font-size:11px}.week-task{display:flex;gap:9px;padding:6px 0;color:#c9dae3;font-size:13px;text-decoration:none}.week-task span{font:11px var(--mono);margin-top:5px;min-width:18px;color:var(--muted)}.week-task.done span{color:var(--cyan)}.week-fallback{margin:12px 0 0;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.progress-line{height:4px;background:#213c4c;border-radius:3px;overflow:hidden;margin:14px 0}.progress-line i{display:block;height:100%;background:var(--accent)}.quick-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quick-links a{display:block;padding:14px;border:1px solid var(--line);border-radius:8px;text-decoration:none;font-size:14px;color:var(--ink)}.quick-links small{display:block;font-size:11px;margin-top:5px}.quick-links a:hover{border-color:var(--accent)}.prose{overflow-wrap:anywhere}.prose h1{font-size:28px}.prose h2{font-size:23px;padding-top:18px;margin-bottom:15px;border-top:1px solid var(--line)}.prose h3{font-size:19px}.prose p,.prose li{font-size:16px;line-height:1.85}.prose ul,.prose ol{padding-left:24px}.prose blockquote{border-left:3px solid var(--cyan);background:#25d7d008;padding:14px 20px;margin:20px 0;color:#c4dfdf}.prose code{font-family:var(--mono);font-size:.91em;background:#061520;padding:2px 5px;border-radius:4px;color:#c5efed}.prose pre{overflow:auto;padding:20px;border:1px solid var(--line);border-radius:8px;background:#061520;font-size:14px;line-height:1.8;position:relative}.prose pre code{padding:0;background:transparent}.table-scroll{max-width:100%;overflow:auto;margin:20px 0;border:1px solid var(--line);border-radius:8px}table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.7}th,td{padding:12px 13px;border:1px solid var(--line);text-align:left;vertical-align:top;min-width:80px}th{background:#163044;color:var(--ink)}.table-scroll table{border-style:hidden}.task-bar{display:flex;gap:12px;justify-content:space-between;align-items:center;margin-bottom:22px;flex-wrap:wrap}.task-bar span{font-size:13px;color:var(--muted)}.task-notes label{display:block;margin-bottom:10px;font-size:16px}.task-notes textarea{min-height:150px}.save-state{color:var(--muted);font-size:12px;display:inline-block;margin-top:8px}.completion{display:flex;gap:11px;align-items:center;font-size:14px;margin-top:18px}.task-navigation{display:flex;justify-content:space-between;gap:12px;margin-top:26px}.code-copy{font-size:11px;padding:4px 9px;min-height:30px;margin:0 0 8px;display:block}.answer-block{border:1px solid var(--line);border-radius:9px;margin:12px 0;background:var(--panel)}.answer-block summary{padding:17px 21px;cursor:pointer;font-size:16px;color:var(--accent)}.answer-block .prose{padding:0 22px 22px}.worksheet-select{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.worksheet-select .selected{border-color:var(--accent);color:var(--accent)}.editor{font-family:var(--mono);font-size:14px;min-height:420px;white-space:pre;tab-size:4}.record-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}.field input,.field select,.field textarea{width:100%;font-size:15px}.field.full{grid-column:1/-1}.resource-list{display:grid;gap:10px}.resource-item{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:15px 18px;border:1px solid var(--line);border-radius:8px;background:var(--panel);min-width:0}.resource-item h3{font-size:14px;margin:0;overflow-wrap:anywhere}.resource-item small{font-size:11px}.resource-item .actions{margin:0;flex-shrink:0}.resource-item a{font-size:12px}.source-reader{max-height:600px;overflow:auto}.toast{position:fixed;left:calc(50% + 90px);bottom:25px;transform:translateX(-50%);z-index:100;padding:12px 22px;background:#1a3848;border:1px solid var(--cyan);border-radius:9px;box-shadow:0 12px 35px #0006;font-size:14px;max-width:90vw}.storage-warning{position:fixed;bottom:0;left:var(--sidebar);right:0;z-index:90;background:#773d28;color:#fff;padding:8px 15px;font-size:13px}.menu-shade{position:fixed;inset:var(--header) 0 0;z-index:35;background:#0009;border:0;border-radius:0}.empty-state{padding:24px;color:var(--muted)}.noscript{margin:100px 30px 30px calc(var(--sidebar) + 30px)}.home-steps{margin:12px 0 0;padding-left:23px;font-size:15px}.home-steps li{padding:5px 0}.privacy-note{font-size:12px;color:var(--muted);margin-top:20px}.copy-area{min-height:300px;font-size:15px}.inline-tag{border:1px solid var(--line);border-radius:5px;padding:3px 8px;font:11px var(--mono);color:var(--accent)}
.source-context{margin:0 0 24px;padding:12px 15px;border:1px dashed var(--line);border-radius:7px;color:var(--muted);font-size:13px}.source-context summary{cursor:pointer;color:var(--muted);font-size:13px}.source-context p{font-size:13px!important;margin:12px 0 0}.source-context strong{font-size:13px}.source-context[open]>strong{display:block;margin-top:12px}
.backup-dialog{width:min(700px,92vw);max-height:90vh;overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--ink);padding:28px}.backup-dialog::backdrop{background:#000b}.backup-dialog h2{font-size:22px}.backup-dialog p{font-size:14px;color:var(--muted)}.backup-dialog textarea{height:260px;font:13px/1.7 var(--mono);white-space:pre}
@media(min-width:1700px){.content{padding-top:48px}.page{max-width:1220px}}
@media(max-width:1150px){:root{--sidebar:250px}.content{padding:30px 22px 80px}.overview-grid{grid-template-columns:1fr}.local-badge{display:none}.week-grid{grid-template-columns:1fr}.card{padding:23px}.focus-card{grid-template-columns:1fr}.focus-aside{display:flex;justify-content:flex-start;border-left:0;border-top:1px solid var(--line);padding:15px 0 0;gap:15px}.focus-aside strong{font-size:30px}.headline-row{display:block}.mode-picker{width:fit-content;margin-top:18px}}
@media(max-width:760px){:root{--sidebar:0px;--header:60px}.topbar{padding:0 12px;gap:10px}.brand{font-size:15px;gap:8px}.brand-mark{width:28px;height:28px}.brand-tail{display:none}.top-actions{gap:5px}.top-actions button{font-size:12px;padding:7px 9px;min-height:36px}.menu-toggle{display:inline-flex;min-height:34px;padding:5px 8px}.sidebar{width:280px;transform:translateX(-100%);transition:transform .2s}.menu-open .sidebar{transform:none}.content{margin-left:0;padding:25px 14px 75px}.card{padding:21px 18px}.page-head{margin-bottom:22px}h1{font-size:29px}.focus-card h2{font-size:24px}.record-grid{grid-template-columns:1fr}.resource-item{display:block}.resource-item .actions{margin-top:12px}.quick-links{grid-template-columns:1fr 1fr}.task-navigation .button{font-size:12px;padding:9px 10px}.prose p,.prose li{font-size:16px}.prose pre{padding:14px;font-size:12px}.toast{left:50%;min-width:180px}.noscript{margin:90px 20px}.editor{font-size:13px}.answer-block summary{padding:15px;font-size:15px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{body{--bg:#fff;--panel:#fff;--panel2:#fff;--ink:#111;--muted:#444;--line:#bbb;--accent:#9e3520;--cyan:#006b6b;background:#fff;color:#111;font-size:12pt}.topbar,.sidebar,.task-navigation,.actions,.task-bar,.toast,.storage-warning,.menu-shade,button{display:none!important}.content{margin:0;padding:0}.card{background:#fff;border-color:#ccc;break-inside:avoid}.prose pre,.prose code,textarea,input{background:#fff!important;color:#111!important}.prose pre{white-space:pre-wrap}.table-scroll{overflow:visible}.page{max-width:none}.notice{color:#333}.skip-link{display:none}.task-notes textarea{min-height:150px}a{color:#14596b}}