:root {
  --navy:#172b4d; --navy-2:#23436d; --blue:#2d6cdf; --teal:#0b8f86;
  --ink:#172033; --muted:#667085; --line:#dce3ec; --soft:#f4f7fa; --white:#fff;
  --danger:#b42318; --warning:#a15c00; --success:#087b62; --shadow:0 8px 24px rgba(23,43,77,.07);
  --sidebar:248px; --radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#eef2f6;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",system-ui,sans-serif;font-size:15px;line-height:1.6}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
.app-shell{min-height:100vh}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);background:var(--navy);color:#fff;padding:24px 16px;display:flex;flex-direction:column;z-index:20}
.brand{display:flex;align-items:center;gap:12px;padding:2px 8px 24px;border-bottom:1px solid rgba(255,255,255,.14)}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.55);font-size:20px;font-weight:800}
.brand strong,.brand span{display:block}.brand strong{font-size:15px}.brand span{font-size:12px;color:#bdc9d9;margin-top:2px}
.nav-list{display:grid;gap:4px;padding-top:20px}
.nav-item{border:0;background:transparent;color:#ced8e6;text-align:left;padding:10px 12px;display:flex;gap:11px;align-items:center;border-radius:8px;transition:.15s ease}
.nav-item span{width:22px;text-align:center;font-size:12px;font-weight:800}
.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.1);color:#fff}.nav-item.active{box-shadow:inset 3px 0 0 #64d9cc}
.sidebar-note{margin-top:auto;border-top:1px solid rgba(255,255,255,.14);padding:18px 8px 0;color:#c7d2e0;font-size:12px}.sidebar-note strong{color:#fff}.sidebar-note p{margin:6px 0 0}
.main-content{margin-left:var(--sidebar);min-height:100vh;padding:0 34px 48px}
.topbar{height:94px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #d9e0e9;margin-bottom:28px;position:sticky;top:0;background:rgba(238,242,246,.95);backdrop-filter:blur(8px);z-index:10}
.topbar h1{font-size:22px;margin:0}.eyebrow{margin:0 0 4px;text-transform:uppercase;letter-spacing:.11em;font-size:11px;font-weight:800;color:var(--teal)}
.top-actions{display:flex;align-items:center;gap:12px}.sync-state{font-size:12px;color:var(--muted)}.mobile-menu{display:none;border:0;background:transparent;font-size:24px}
.view{display:none;max-width:1440px;margin:0 auto}.view.active{display:block}
h2{font-size:27px;line-height:1.25;margin:0 0 8px}h3{font-size:17px;line-height:1.4;margin:0}p{margin-top:0}.muted{color:var(--muted)}
.hero-panel{background:var(--navy);color:#fff;padding:32px 38px;display:flex;align-items:center;justify-content:space-between;gap:36px;border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-panel .eyebrow{color:#73ded2}.hero-panel h2{font-size:30px;max-width:720px}.hero-copy{color:#d3ddea;max-width:760px;margin:12px 0 0}
.countdown{min-width:210px;padding-left:28px;border-left:1px solid rgba(255,255,255,.2);text-align:center}.countdown span{font-size:55px;line-height:1;font-weight:800;display:block;font-variant-numeric:tabular-nums}.countdown small,.countdown time{display:block;color:#c8d4e3}.countdown time{margin-top:6px;font-size:12px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:18px 0}.stat{background:#fff;padding:18px 20px;border:1px solid var(--line);border-radius:10px}.stat span,.stat small{display:block;color:var(--muted);font-size:12px}.stat strong{font-size:24px;display:block;margin:5px 0 2px}
.dashboard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.span-2{grid-column:span 2}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 2px 8px rgba(23,43,77,.025)}
.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:16px}.text-button{border:0;background:transparent;color:var(--blue);font-weight:700;padding:3px}
.progress-track{height:8px;background:#e9eef4;overflow:hidden;border-radius:99px}.progress-track span{display:block;height:100%;width:0;background:var(--teal);transition:width .25s ease}
.mini-task-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 20px;margin-top:16px}.mini-task{display:flex;align-items:center;gap:9px;font-size:13px}.mini-dot{width:8px;height:8px;background:#bac7d5;border-radius:50%;flex:0 0 auto}.mini-task.done{color:var(--muted);text-decoration:line-through}.mini-task.done .mini-dot{background:var(--teal)}
.subject-progress{display:grid;gap:15px}.subject-row{display:grid;grid-template-columns:90px 1fr 42px;align-items:center;gap:8px;font-size:13px}.subject-row .bar{height:7px;background:#edf1f5;border-radius:10px;overflow:hidden}.subject-row .bar span{display:block;height:100%;background:var(--blue)}.subject-row strong{text-align:right;font-size:12px}
.large-copy{font-size:16px;line-height:1.8}.notice{border-left:3px solid var(--teal);padding:10px 12px;background:#f2f9f8;font-size:12px}.notice strong,.notice span{display:block}.notice span{color:var(--muted);margin-top:3px}
.asset-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.asset-grid button{background:var(--soft);border:1px solid transparent;border-radius:10px;padding:16px;text-align:left}.asset-grid button:hover{border-color:#aebfd3;background:#fff}.asset-grid strong,.asset-grid span{display:block}.asset-grid strong{font-size:25px}.asset-grid span{font-size:12px;color:var(--muted)}
.section-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:20px}.section-toolbar h2{margin-bottom:6px}.section-toolbar p:last-child{margin-bottom:0}.toolbar-actions{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap}
.button{border:1px solid transparent;padding:9px 15px;border-radius:8px;font-weight:700;background:#fff}.button.primary{background:var(--blue);color:#fff}.button.secondary{border-color:#bcc8d6;background:#fff;color:var(--navy)}.button.ghost{background:transparent;color:var(--muted)}.button.danger{background:var(--danger);color:#fff}.button.compact{padding:7px 11px;font-size:12px}.button:hover{filter:brightness(.97)}
.inline-field,.stack-field{font-size:12px;font-weight:700;color:var(--muted)}.inline-field select{margin-left:7px}.stack-field{display:block;margin-top:14px}.stack-field input,.stack-field textarea{margin-top:6px}
input,select,textarea{width:100%;border:1px solid #bdc8d5;border-radius:7px;background:#fff;padding:9px 10px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(45,108,223,.12)}textarea{resize:vertical}
.today-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:18px}.today-side{display:grid;align-content:start;gap:18px}.task-panel{min-height:520px}.task-list{margin-top:16px}.task-item{display:grid;grid-template-columns:28px 75px 1fr auto;align-items:start;gap:12px;padding:15px 4px;border-bottom:1px solid #e6ebf1}.task-item:last-child{border-bottom:0}.task-item input{width:19px;height:19px;margin-top:2px;accent-color:var(--teal)}.task-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.task-title{font-weight:700}.task-note{color:var(--muted);font-size:12px;margin-top:2px}.subject-tag{font-size:11px;border:1px solid #cbd5e1;border-radius:99px;padding:2px 7px;white-space:nowrap}.task-item.done .task-title{text-decoration:line-through;color:var(--muted)}
.clean-list{padding-left:18px;margin:12px 0 0}.clean-list li{margin:7px 0}.today-side .clean-list{font-size:13px}
.month-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:18px}.month-card{background:#fff;border:1px solid var(--line);border-top:4px solid var(--blue);padding:22px;border-radius:10px}.month-card.current{border-top-color:var(--teal);box-shadow:var(--shadow)}.month-card header{display:flex;justify-content:space-between;gap:20px}.month-card .phase{color:var(--blue);font-weight:800}.month-card h3{font-size:20px}.month-card ul{padding-left:20px;margin-bottom:10px}.checks{background:var(--soft);padding:12px 14px;font-size:12px}.checks strong{display:block;margin-bottom:4px}
.table-panel{margin-top:18px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;color:#526176;background:var(--soft);font-size:12px}th,td{padding:11px 12px;border-bottom:1px solid #e4e9ef;vertical-align:top}tbody tr:last-child td{border-bottom:0}tbody tr.current-row{background:#f0f9f8}
.schedule-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}.timeline{display:grid}.timeline-item{display:grid;grid-template-columns:95px 1fr;gap:15px;padding:10px 0;border-bottom:1px solid #e7ebf0}.timeline-item:last-child{border-bottom:0}.timeline-time{font-variant-numeric:tabular-nums;font-weight:700;color:var(--navy)}.timeline-note{font-size:12px;color:var(--muted)}.low-energy{margin-top:18px;display:grid;grid-template-columns:.7fr 1.3fr;gap:30px;border-left:4px solid var(--warning)}.low-energy ol{margin:0;padding-left:22px}.low-energy li{margin:6px 0}
.hidden{display:none!important}.entry-form{margin-bottom:18px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 18px}.form-grid label{font-size:12px;font-weight:700;color:#526176}.form-grid input,.form-grid select,.form-grid textarea{margin-top:5px}.form-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}.data-toolbar{display:grid;grid-template-columns:minmax(220px,1fr) 180px auto;gap:10px;align-items:center;margin-bottom:14px}.record-list{display:grid;gap:12px}.empty-state{background:#fff;border:1px dashed #b8c4d2;padding:46px 20px;text-align:center;color:var(--muted);border-radius:10px}.record{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px;display:grid;grid-template-columns:1fr auto;gap:16px}.record-title{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.record-title h3{font-size:16px}.record-meta{color:var(--muted);font-size:12px;margin:5px 0 12px}.record-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.record-field{background:var(--soft);padding:10px 12px;font-size:13px;white-space:pre-wrap}.record-field strong{display:block;font-size:11px;color:var(--muted);margin-bottom:3px}.record-actions{display:flex;align-items:flex-start}.delete-button{border:0;background:transparent;color:var(--danger);padding:3px 6px}.mastery{display:inline-block;color:var(--success);font-weight:700;font-size:12px}
.mock-summary{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:14px;padding:16px 22px}.mock-summary div{border-right:1px solid var(--line)}.mock-summary div:last-child{border-right:0;padding-left:20px}.mock-summary div:nth-child(2){padding-left:20px}.mock-summary span,.mock-summary strong{display:block}.mock-summary span{color:var(--muted);font-size:12px}.mock-summary strong{font-size:21px}
.review-tabs{display:flex;gap:3px;border-bottom:1px solid var(--line);margin-bottom:18px}.review-tabs button{border:0;background:transparent;padding:10px 17px;font-weight:700;color:var(--muted);border-bottom:3px solid transparent}.review-tabs button.active{color:var(--blue);border-bottom-color:var(--blue)}.review-layout{display:grid;grid-template-columns:1.5fr .7fr;gap:18px}.review-period{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:18px}.review-period label{font-size:12px;font-weight:700;color:var(--muted)}.review-period input{margin-top:5px}.review-question{margin-bottom:15px}.review-question label{display:block;font-weight:700;font-size:13px;margin-bottom:5px}.history-list{display:grid;gap:8px;margin-top:12px}.history-item{padding:10px 0;border-bottom:1px solid var(--line)}.history-item strong,.history-item span{display:block}.history-item span{font-size:12px;color:var(--muted)}
.workflow{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;list-style:none;padding:0;counter-reset:steps}.workflow li{counter-increment:steps;background:#fff;border:1px solid var(--line);padding:19px;border-radius:10px}.workflow li:before{content:counter(steps);display:grid;place-items:center;width:28px;height:28px;background:var(--navy);color:#fff;font-weight:800;border-radius:50%;margin-bottom:12px}.workflow strong{display:block;margin-bottom:5px}.workflow span{font-size:13px;color:var(--muted)}.prompt-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px}.prompt-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px}.prompt-card header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.prompt-card pre{white-space:pre-wrap;word-break:break-word;background:var(--soft);border:1px solid #e1e7ee;padding:14px;border-radius:7px;font-family:inherit;font-size:13px;max-height:290px;overflow:auto}.copy-button{border:1px solid #bdc8d5;background:#fff;padding:5px 9px;border-radius:6px;font-size:12px}
.settings-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-bottom:18px}.button-stack{display:flex;gap:9px;flex-wrap:wrap}.file-button{position:relative;display:inline-block}.file-button input{position:absolute;inset:0;opacity:0;cursor:pointer}.danger-zone{border-color:#efc3bf}.danger-zone h3{color:var(--danger)}.source-list{display:grid;gap:8px}.source-item{display:grid;grid-template-columns:1fr auto;gap:10px;padding:8px 0;border-bottom:1px solid var(--line)}.source-item:last-child{border-bottom:0}.source-item a{color:var(--blue);font-size:12px}.toast{position:fixed;right:24px;bottom:24px;background:var(--navy);color:#fff;padding:11px 16px;border-radius:8px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s;z-index:99}.toast.show{opacity:1;transform:none}
@media(max-width:1050px){.stat-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.schedule-grid,.today-layout,.review-layout{grid-template-columns:1fr}.workflow{grid-template-columns:repeat(2,1fr)}}
@media(max-width:760px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:none}.main-content{margin-left:0;padding:0 16px 36px}.topbar{height:78px}.mobile-menu{display:block}.topbar>div:nth-child(2){flex:1;margin-left:10px}.top-actions .sync-state,.top-actions .button{display:none}.hero-panel{padding:25px;display:block}.hero-panel h2{font-size:25px}.countdown{border:0;border-top:1px solid rgba(255,255,255,.2);padding:20px 0 0;margin-top:22px}.stat-grid,.month-grid,.settings-grid,.prompt-grid,.asset-grid{grid-template-columns:1fr}.mini-task-list{grid-template-columns:1fr}.section-toolbar{display:block}.section-toolbar>.button{margin-top:12px}.toolbar-actions{margin-top:15px}.form-grid,.record-grid{grid-template-columns:1fr}.form-grid .span-2{grid-column:auto}.data-toolbar{grid-template-columns:1fr}.record{grid-template-columns:1fr}.workflow{grid-template-columns:1fr}.low-energy{grid-template-columns:1fr}.mock-summary{grid-template-columns:1fr}.mock-summary div,.mock-summary div:nth-child(2),.mock-summary div:last-child{border:0;border-bottom:1px solid var(--line);padding:9px 0}.mock-summary div:last-child{border-bottom:0}.source-item{grid-template-columns:1fr}.task-item{grid-template-columns:26px 65px 1fr}.task-item .subject-tag{grid-column:3}.review-period{display:block}.review-period span{display:block;margin-top:10px}}
@media print{
  @page{size:A4;margin:14mm}
  body{background:#fff;font-size:11pt}.sidebar,.topbar,.toast{display:none!important}.main-content{margin:0;padding:0}.view{display:none!important}
  body.print-today #view-today{display:block!important}.section-toolbar .toolbar-actions,.today-side,.button{display:none!important}.today-layout{display:block}.panel{box-shadow:none;border-color:#999}.task-panel{min-height:0}.task-item{break-inside:avoid}.progress-track{border:1px solid #aaa}.section-toolbar{margin-bottom:10mm}
}