:root{
  --color-primary:#2563EB; --color-primary-hover:#1D4ED8;
  --color-success:#16A34A; --color-warning:#D97706; --color-danger:#DC2626;
  --color-purple:#7C3AED;
  --n900:#111827; --n500:#6B7280; --n300:#D1D5DB; --n100:#F3F4F6; --n50:#F9FAFB;
  --border:#E5E7EB;
  --font-sans:system-ui,"Segoe UI","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",Consolas,monospace;
  --radius-card:8px; --radius-btn:6px; --radius-chip:999px;
  --shadow-drawer:0 8px 32px rgba(0,0,0,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{font-family:var(--font-sans);font-size:14px;color:var(--n900);background:var(--n50);line-height:1.7;overflow:hidden}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:var(--n300);border-radius:8px;border:2px solid #fff}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

/* ===== 整体布局:顶栏56px + 三栏 ===== */
#app{display:flex;flex-direction:column;height:100vh}
.topbar{height:56px;flex:none;display:flex;align-items:center;gap:12px;padding:0 16px;background:#fff;border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;white-space:nowrap}
.brand .gem{color:var(--color-primary);font-size:18px}
.brand .proto-tag{font-size:11px;font-weight:400;color:var(--n500);background:var(--n100);padding:1px 8px;border-radius:var(--radius-chip)}
.searchwrap{flex:1;max-width:520px;position:relative}
.searchwrap input{width:100%;height:34px;padding:0 64px 0 32px;border:1px solid var(--n300);border-radius:var(--radius-btn);background:var(--n50)}
.searchwrap input:focus{border-color:var(--color-primary);background:#fff;outline:none}
.searchwrap .icon{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:var(--n500);pointer-events:none}
.searchwrap kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-family:var(--font-sans);font-size:11px;color:var(--n500);background:#fff;border:1px solid var(--n300);border-radius:4px;padding:0 5px}
.topbar .spacer{flex:1}
.main{flex:1;display:grid;grid-template-columns:220px 340px 1fr;min-height:0}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:var(--radius-btn);font-weight:500;transition:background .15s,border-color .15s;white-space:nowrap}
.btn.primary{background:var(--color-primary);color:#fff}
.btn.primary:hover{background:var(--color-primary-hover)}
.btn.ghost{background:#fff;border:1px solid var(--n300)}
.btn.ghost:hover{background:var(--n50)}
.btn.danger{background:var(--color-danger);color:#fff}
.btn.danger:hover{filter:brightness(.92)}
.btn.text-danger{color:var(--color-danger);border-color:#FECACA}
.btn.sm{height:28px;padding:0 10px;font-size:13px}
.btn.copied{background:var(--color-success)!important}

/* ===== 侧栏 ===== */
.sidebar{background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}
.side-scroll{flex:1;overflow-y:auto;padding:12px 8px}
.side-label{font-size:12px;color:var(--n500);padding:8px 10px 4px;display:flex;justify-content:space-between}
.side-item{display:flex;align-items:center;gap:8px;width:100%;text-align:left;padding:7px 10px;border-radius:var(--radius-btn);color:var(--n900)}
.side-item:hover{background:var(--n100)}
.side-item.active{background:#EFF6FF;color:var(--color-primary);font-weight:600}
.side-item .cnt{margin-left:auto;font-size:12px;color:var(--n500)}
.side-item.active .cnt{color:var(--color-primary)}
.side-dot{width:8px;height:8px;border-radius:50%;flex:none}
.side-foot{flex:none;border-top:1px solid var(--border);padding:8px}
.side-foot button{display:block;width:100%;text-align:left;padding:6px 10px;border-radius:var(--radius-btn);color:var(--n500);font-size:13px}
.side-foot button:hover{background:var(--n100);color:var(--n900)}

/* ===== 列表栏 ===== */
.listcol{background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0}
.list-head{flex:none;display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--border)}
.list-head label{font-size:12px;color:var(--n500);white-space:nowrap}
.list-head select{flex:1;height:30px;border:1px solid var(--n300);border-radius:var(--radius-btn);background:#fff;padding:0 6px}
.list-scroll{flex:1;overflow-y:auto;padding:8px}
.li{width:100%;text-align:left;background:#fff;border:1px solid transparent;border-left:3px solid transparent;border-radius:var(--radius-card);padding:10px 12px;margin-bottom:6px;display:block}
.li:hover{background:var(--n50)}
.li.selected{border-color:var(--border);border-left-color:var(--color-primary);background:#EFF6FF}
.li .t{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.li.deprecated .t{text-decoration:line-through;color:var(--n500)}
.li .row2{display:flex;align-items:center;gap:6px;margin-top:4px}
.li .meta{margin-top:4px;font-size:12px;color:var(--n500);display:flex;gap:8px;white-space:nowrap;overflow:hidden}
.chip{display:inline-flex;align-items:center;background:var(--n100);border-radius:var(--radius-chip);padding:1px 8px;font-size:12px;color:var(--n900);white-space:nowrap}
.chip button{margin-left:2px;color:var(--n500);line-height:1;padding:2px}
.badge{display:inline-flex;align-items:center;height:20px;padding:0 8px;border-radius:var(--radius-chip);font-size:12px;white-space:nowrap}
.badge.draft{background:var(--n100);color:#6B7280}
.badge.testing{background:#FEF3C7;color:#B45309}
.badge.verified{background:#DCFCE7;color:#15803D}
.badge.deprecated{background:var(--n100);color:#9CA3AF;text-decoration:line-through}
.stars{color:#F59E0B;letter-spacing:1px;font-size:12px}
.stars .off{color:var(--n300)}

/* ===== 详情区 ===== */
.detail{display:flex;flex-direction:column;min-height:0;background:var(--n50)}
.detail-inner{flex:1;overflow-y:auto;padding:24px 28px;max-width:980px;width:100%;margin:0 auto}
.detail-empty{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:var(--n500)}
.detail-empty .big{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,#EFF6FF,#F9FAFB);display:flex;align-items:center;justify-content:center;font-size:30px;color:var(--color-primary);border:1px dashed var(--n300)}
.d-title-row{display:flex;align-items:flex-start;gap:12px;flex-wrap:wrap}
.d-title-row h1{font-size:20px;line-height:1.3;flex:1;min-width:240px}
.d-stats{font-size:12px;color:var(--n500);margin-top:2px}
.actionbar{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.tabbar{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-top:22px}
.tabbar button{padding:8px 14px;color:var(--n500);border-bottom:2px solid transparent;margin-bottom:-1px;font-weight:500}
.tabbar button.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}
.bodycard{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:18px 20px;margin-top:16px;white-space:pre-wrap;line-height:1.8}
.var-tok{font-family:var(--font-mono);font-size:13px;background:#EFF6FF;color:var(--color-primary-hover);border:1px solid #BFDBFE;border-radius:4px;padding:0 5px}
.notes-block{margin-top:12px}
.notes-block summary{cursor:pointer;color:var(--n500);font-size:13px;user-select:none;list-style:none}
.notes-block summary::before{content:"▸ "}
.notes-block[open] summary::before{content:"▾ "}
.notes-block .notes-body{background:#FFFbeb;border:1px solid #FDE68A;border-radius:var(--radius-card);padding:12px 14px;margin-top:8px;font-size:13px;color:#78350F;white-space:pre-wrap}
.backbtn{display:none}

/* ===== 时间线 ===== */
.timeline{margin-top:16px;position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--n100)}
.tl-node{position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:12px 14px;margin-bottom:12px}
.tl-node::before{content:"";position:absolute;left:-23px;top:18px;width:10px;height:10px;border-radius:50%;background:var(--color-primary);box-shadow:0 0 0 3px #fff}
.tl-node.t-rollback::before{background:var(--color-purple)}
.tl-node.t-usage::before{background:var(--color-success)}
.tl-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tl-head b{font-family:var(--font-mono);font-size:13px}
.tl-kind{font-size:12px;color:var(--n500)}
.tl-time{margin-left:auto;font-size:12px;color:var(--n500)}
.tl-text{font-size:13px;color:var(--n900);margin-top:4px;white-space:pre-wrap}
.tl-actions{margin-top:8px;display:flex;gap:8px}

/* ===== Diff ===== */
.diff-toolbar{display:flex;align-items:center;gap:8px;margin-top:16px;flex-wrap:wrap}
.diff-toolbar select{height:30px;border:1px solid var(--n300);border-radius:var(--radius-btn);background:#fff;max-width:280px}
.diff-wrap{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;margin-top:12px;font-family:var(--font-mono);font-size:13px}
.diff-col{background:#fff;min-height:120px}
.diff-pane-label{position:sticky;top:0;background:var(--n100);padding:4px 12px;font-family:var(--font-sans);font-size:12px;color:var(--n500)}
.diff-line{display:flex}
.diff-line .ln{flex:none;width:36px;text-align:right;padding-right:8px;color:var(--n300);user-select:none}
.diff-line .tx{flex:1;white-space:pre-wrap;word-break:break-all;padding-right:10px}
.diff-line.del{background:rgba(220,38,38,.09)}
.diff-line.add{background:rgba(22,163,74,.10)}
.diff-line.pad{background:var(--n50);min-height:22px}

/* ===== 抽屉(编辑器)===== */
.drawer-mask{position:fixed;inset:0;background:rgba(17,24,39,.4);opacity:0;pointer-events:none;transition:opacity .25s;z-index:40}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100vh;width:clamp(720px,62vw,920px);max-width:100vw;background:#fff;box-shadow:var(--shadow-drawer);transform:translateX(102%);transition:transform .25s ease;z-index:41;display:flex;flex-direction:column}
.drawer.open{transform:translateX(0)}
.drawer-head{flex:none;display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border)}
.drawer-head h2{font-size:16px}
.drawer-body{flex:1;overflow-y:auto;padding:18px 20px}
.field{margin-bottom:16px}
.field>label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field .hint{font-weight:400;color:var(--n500);font-size:12px;margin-left:6px}
.field input[type=text],.field textarea,.field select{width:100%;border:1px solid var(--n300);border-radius:var(--radius-btn);padding:8px 10px;background:#fff}
.field textarea{min-height:400px;resize:vertical;line-height:1.8}
.field textarea.mono{font-family:var(--font-mono);font-size:13px}
.field.invalid input{border-color:var(--color-danger)}
.err-msg{color:var(--color-danger);font-size:12px;margin-top:4px;display:none}
.field.invalid .err-msg{display:block}
.f-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.chips-input{border:1px solid var(--n300);border-radius:var(--radius-btn);padding:6px 8px;display:flex;flex-wrap:wrap;gap:6px;background:#fff}
.chips-input input{flex:1;min-width:140px;border:none;outline:none;padding:4px 2px}
.mono-toggle{display:flex;align-items:right;gap:6px;font-size:12px;color:var(--n500);justify-content:flex-end;margin-top:4px}
.mono-toggle input{accent-color:var(--color-primary)}
.reason-panel{border-top:1px solid var(--border);background:var(--n50);padding:14px 20px;display:none}
.reason-panel.open{display:block}
.quick-chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
.qchip{border:1px solid var(--n300);border-radius:var(--radius-chip);padding:2px 12px;font-size:12px;background:#fff}
.qchip:hover{border-color:var(--color-primary);color:var(--color-primary)}
.drawer-foot{flex:none;display:flex;align-items:center;gap:10px;padding:14px 20px;border-top:1px solid var(--border)}
.drawer-foot .grow{flex:1}
.star-input span{cursor:pointer;font-size:20px;color:var(--n300);transition:color .1s}
.star-input span.on{color:#F59E0B}

/* ===== 弹窗 ===== */
.modal-mask{position:fixed;inset:0;background:rgba(17,24,39,.45);z-index:60;display:flex;align-items:center;justify-content:center;animation:fadeIn .15s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{background:#fff;border-radius:var(--radius-card);width:min(480px,92vw);max-height:86vh;display:flex;flex-direction:column;box-shadow:var(--shadow-drawer);animation:popIn .18s}
@keyframes popIn{from{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}
.modal-head{padding:16px 20px 0;display:flex;justify-content:space-between;align-items:center}
.modal-head h3{font-size:16px}
.modal-x{color:var(--n500);font-size:18px;padding:4px 8px}
.modal-x:hover{color:var(--n900)}
.modal-body{padding:14px 20px;overflow-y:auto;font-size:14px}
.modal-foot{padding:0 20px 18px;display:flex;justify-content:flex-end;gap:10px}
.path-box{font-family:var(--font-mono);font-size:13px;background:var(--n50);border:1px solid var(--border);border-radius:var(--radius-btn);padding:10px 12px;word-break:break-all}
.map-row{display:flex;align-items:center;gap:10px;padding:6px 0;border-bottom:1px dashed var(--border);font-family:var(--font-mono);font-size:13px}
.map-row:last-child{border-bottom:none}
.map-arrow{color:var(--n500)}
.warn-banner{background:#FEF2F2;border:1px solid #FECACA;color:#991B1B;border-radius:var(--radius-btn);padding:10px 12px;font-size:13px;margin-bottom:12px}

/* ===== 浮层状态菜单 / Toast / 空态 ===== */
.pop-menu{position:fixed;z-index:70;background:#fff;border:1px solid var(--border);border-radius:var(--radius-btn);box-shadow:0 4px 16px rgba(0,0,0,.10);padding:4px;min-width:150px}
.pop-menu.hidden{display:none}
.pop-menu button{display:block;width:100%;text-align:left;padding:7px 12px;border-radius:4px}
.pop-menu button:hover{background:var(--n100)}
.pop-menu button.cur{color:var(--color-primary);font-weight:600}
.pop-menu button .bd{margin-left:8px}
#toastBox{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:90;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--n900);color:#fff;border-radius:var(--radius-chip);padding:9px 18px;font-size:13px;box-shadow:0 4px 16px rgba(0,0,0,.2);animation:popIn .18s;max-width:80vw}
.toast.err{background:var(--color-danger)}
.empty-tip{text-align:center;color:var(--n500);padding:48px 20px}
.empty-tip .ico{font-size:28px;margin-bottom:8px}
.linklike{color:var(--color-primary);}
.linklike:hover{text-decoration:underline}

/* ===== 响应式降级 ===== */
.backbtn{margin-bottom:12px}
@media (max-width:1180px){.sidebar{display:none}.main{grid-template-columns:300px 1fr}}
@media (max-width:860px){
  .main{grid-template-columns:1fr}
  .listcol{display:none}
  body.show-detail .listcol{display:flex}
  body.show-detail .detail{position:fixed;inset:0;z-index:30;background:var(--n50)}
  body:not(.show-detail) .backbtn{visibility:hidden}
}