*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:#f5f7fb;color:#1f2937}
a{color:#2563eb;text-decoration:none}
a:hover{text-decoration:underline}
.layout{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.card{width:100%;max-width:460px;background:#fff;border-radius:16px;box-shadow:0 10px 35px rgba(15,23,42,.08);padding:28px}
.card-wide{max-width:760px}
h1{font-size:24px;margin:0 0 10px}
h2{font-size:22px;margin:0 0 12px}
h3{font-size:18px;margin:0}
p.muted,.muted{margin:0;color:#6b7280;line-height:1.7}
.form-group{margin-bottom:16px}
label{display:block;font-size:14px;margin-bottom:8px;color:#374151}
input[type=text],input[type=password],input[type=number],input[type=datetime-local],select{width:100%;min-height:44px;border:1px solid #d1d5db;border-radius:10px;padding:0 12px;font-size:14px;outline:none;background:#fff}
input:focus,select:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.row{display:flex;gap:12px}.row>*{flex:1}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border:none;border-radius:10px;background:#111827;color:#fff;font-size:14px;cursor:pointer}
.btn:hover{text-decoration:none;opacity:.94}.btn-secondary{background:#e5e7eb;color:#111827}.btn-green{background:#16a34a}.btn-danger{background:#dc2626;color:#fff}
.alert{padding:12px 14px;border-radius:10px;margin:0 0 16px;font-size:14px;line-height:1.6}.alert-error{background:#fef2f2;color:#991b1b;border:1px solid #fecaca}.alert-success{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}.alert-info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}
.checkbox{display:flex;align-items:center;gap:8px;font-size:14px;color:#4b5563}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:18px 28px;background:#fff;border-bottom:1px solid #e5e7eb}.topbar .links{display:flex;gap:16px;align-items:center}
.page{min-height:100vh;background:#f5f7fb}.dashboard{padding:34px 28px}.dashboard-narrow{max-width:1100px;margin:0 auto}
.placeholder{height:420px;border:2px dashed #d1d5db;border-radius:18px;background:linear-gradient(180deg,#fff,#f9fafb);display:flex;align-items:center;justify-content:center;color:#9ca3af;font-size:18px}
.frontend-title-row{margin-bottom:18px}.note{font-size:13px;color:#6b7280;line-height:1.7}.install-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.topbar-wrap{gap:16px;flex-wrap:wrap}.links-wrap{flex-wrap:wrap}.topbar-sub{font-size:13px}
.board-head{background:#fff;border-radius:20px;padding:20px 22px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px;box-shadow:0 10px 30px rgba(15,23,42,.06);margin-bottom:20px}
.board-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.sort-form{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.select{width:auto;min-width:160px}
.task-sections{display:grid;grid-template-columns:1fr 1fr;gap:20px}.task-panel{background:#fff;border-radius:20px;box-shadow:0 10px 30px rgba(15,23,42,.06);padding:18px}.task-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.badge{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;border-radius:999px;padding:0 10px;background:#dbeafe;color:#1d4ed8;font-size:13px}.badge-done{background:#e5e7eb;color:#374151}.task-list{display:flex;flex-direction:column;gap:14px}.empty-box{border:1px dashed #d1d5db;border-radius:16px;padding:26px 18px;text-align:center;color:#9ca3af;background:#fafafa}
.task-card{background:var(--task-soft);border-left:6px solid var(--task-accent);border-radius:16px;padding:16px 16px 14px;color:var(--task-text,#1f2937)}.task-card.is-done{opacity:.8}.task-card.is-device-task{box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}.task-card-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}.task-times{display:flex;flex-direction:column;gap:4px;align-items:flex-end;font-size:12px;color:var(--task-meta,#6b7280)}.task-color-chip{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:24px;border-radius:999px;padding:0 10px;background:var(--task-chip-bg,rgba(255,255,255,.72));font-size:12px;font-weight:700;color:var(--task-chip-text,#111827)}.task-content{line-height:1.75;font-size:14px;word-break:break-word}.task-content p{margin:0 0 8px}.task-content p:last-child{margin-bottom:0}.task-inline-form{margin-top:12px}.task-action-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.task-action-row .task-inline-form{margin-top:0}.task-action-row .btn,.task-action-row form{flex:1}
.modal{position:fixed;inset:0;display:none;z-index:50}.modal.is-open{display:block}.modal-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.5)}.modal-dialog{position:relative;z-index:1;width:min(92vw,720px);margin:5vh auto;background:#fff;border-radius:24px;box-shadow:0 25px 50px rgba(15,23,42,.24);padding:22px;max-height:90vh;overflow:auto}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.icon-btn{width:38px;height:38px;border:none;border-radius:999px;background:#f3f4f6;font-size:24px;cursor:pointer}
.editor-toolbar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.editor-toolbar button{border:1px solid #d1d5db;background:#fff;border-radius:10px;padding:8px 12px;cursor:pointer}.editor{min-height:180px;border:1px solid #d1d5db;border-radius:14px;padding:12px 14px;line-height:1.8;outline:none}.editor:empty:before{content:attr(data-placeholder);color:#9ca3af}.hidden-textarea{display:none}.form-grid-two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.color-palette{display:flex;gap:12px;flex-wrap:wrap}.color-swatch{display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;margin:0}.color-swatch input{display:none}.color-swatch span{display:block;width:34px;height:34px;border-radius:10px;background:var(--swatch);border:3px solid transparent;box-shadow:0 4px 10px rgba(15,23,42,.12)}.color-swatch input:checked + span{border-color:#111827;transform:scale(1.06)}.color-swatch em{font-style:normal;font-size:12px;color:#6b7280}.color-swatch.is-disabled{opacity:.45;cursor:not-allowed}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:18px}.doc-card{background:#fff;border-radius:20px;padding:20px 22px;box-shadow:0 10px 30px rgba(15,23,42,.06);margin-bottom:18px}.doc-head-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.code-block{background:#0f172a;color:#e5e7eb;border-radius:16px;padding:16px 18px;line-height:1.7;overflow:auto;white-space:pre-wrap;word-break:break-word}.table-wrap{overflow:auto}.doc-table{width:100%;border-collapse:collapse;font-size:14px}.doc-table th,.doc-table td{border-bottom:1px solid #e5e7eb;padding:12px 10px;text-align:left;vertical-align:top}.doc-table th{background:#f8fafc;font-weight:700}.doc-list{margin:12px 0 0;padding-left:20px;line-height:1.8}
.frontend-task-board{background:#fff;border-radius:20px;box-shadow:0 10px 30px rgba(15,23,42,.06);padding:18px}
.frontend-task-tabs{display:flex;flex-direction:column;gap:16px}
.frontend-tab-head{display:flex;gap:12px;flex-wrap:wrap}
.frontend-tab-btn{border:none;background:#eef2ff;color:#334155;border-radius:14px;padding:12px 16px;display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s ease}
.frontend-tab-btn strong{display:inline-flex;align-items:center;justify-content:center;min-width:28px;height:28px;border-radius:999px;padding:0 10px;background:rgba(255,255,255,.72);font-size:13px;color:#0f172a}
.frontend-tab-btn.is-active{background:#111827;color:#fff;box-shadow:0 10px 24px rgba(15,23,42,.18)}
.frontend-tab-btn.is-active strong{background:rgba(255,255,255,.16);color:#fff}
.frontend-tab-panel{display:none}.frontend-tab-panel.is-active{display:block}
.frontend-task-strip-list{display:flex;flex-direction:column;gap:14px}.swipe-row{position:relative;overflow:hidden;border-radius:18px}.swipe-action-area{position:absolute;right:0;top:0;bottom:0;width:128px;display:flex;align-items:center;justify-content:center;background:#16a34a}.swipe-action-area form{width:100%;height:100%}.swipe-done-btn{width:100%;height:100%;border:none;background:#16a34a;color:#fff;font-size:14px;cursor:pointer}.frontend-task-strip{position:relative;background:var(--task-soft);border-left:8px solid var(--task-accent);border-radius:18px;padding:16px 18px;transition:transform .25s ease;touch-action:pan-y;color:var(--task-text,#1f2937)}.frontend-task-strip.is-device-task{box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}.swipe-row.is-swiped .frontend-task-strip{transform:translateX(-128px)}.frontend-task-meta{display:flex;align-items:center;justify-content:flex-end;gap:12px;margin-bottom:10px;color:var(--task-meta,#6b7280);font-size:13px}.frontend-task-content{line-height:1.8;font-size:14px;word-break:break-word}.frontend-task-content p{margin:0 0 8px}.frontend-task-content p:last-child{margin-bottom:0}
.context-menu{position:absolute;display:none;z-index:5}.context-menu.is-open{display:block}.context-menu-btn{border:none;background:#111827;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:0 10px 25px rgba(15,23,42,.2);cursor:pointer;white-space:nowrap}
@media (max-width: 820px){
  .install-grid,.task-sections,.form-grid-two{grid-template-columns:1fr}
  .topbar{padding:16px}
  .dashboard{padding:20px 16px}
  .board-head,.task-panel,.doc-card,.frontend-task-board{padding:16px}
  .modal-dialog{width:min(94vw,720px);margin:3vh auto;padding:18px}
  .board-actions,.sort-form,.modal-actions{width:100%}
  .sort-form .select,.sort-form .btn,.board-actions>.btn,.task-action-row>.btn,.task-action-row>form{width:100%}
  .topbar .links{width:100%}
  .frontend-tab-head{display:grid;grid-template-columns:1fr 1fr}
  .frontend-tab-btn{justify-content:space-between;width:100%}
}