:root{
  --indigo:#4a3fd4; --indigo-d:#372e9e; --violet:#9b4dd4;
  --bg:#f7f8fc; --card:#fff; --ink:#1c1a2e; --ink2:#5b5872; --ink3:#8b88a3;
  --line:#e3e1ee; --line2:#cfcbdf;
  --ok:#1d7a4c; --bad:#d33; --warn:#c9a227;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}

.topbar{background:linear-gradient(120deg,#4a3fd4,#7d5bd0 60%,#9b4dd4);color:#fff;padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:13px}
.logo{width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;font-family:"KaiTi","STKaiti",serif}
.brand h1{font-size:17px;font-weight:600}
.brand p{font-size:12px;opacity:.82}
.pill{font-size:12px;padding:4px 12px;border-radius:20px;background:rgba(255,255,255,.2);font-weight:500}
.pill-ok{background:rgba(29,122,76,.9);color:#fff}
.pill-bad{background:rgba(211,51,51,.9);color:#fff}

.net-bar{display:none;position:relative;height:26px;background:#eeecf9;border-bottom:1px solid var(--line2);overflow:hidden}
.net-bar .fill{height:100%;width:0;background:linear-gradient(90deg,var(--indigo),var(--violet));transition:width .2s}
.net-bar .label{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:11.5px;color:var(--indigo-d);font-weight:500}

.layout{max-width:1400px;margin:0 auto;padding:18px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr) 300px;gap:18px;align-items:start}

.board-col{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.board-wrap{display:flex;justify-content:center;background:var(--bg);border-radius:10px;padding:8px}
#board{display:block;touch-action:none}
.status-bar{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding:9px 12px;background:var(--bg);border-radius:9px}
.status{font-weight:600;font-size:14px}
.status.warn{color:var(--bad)}
.status-actions{display:flex;gap:5px}
.status-actions button{width:32px;height:28px;padding:0;font-size:13px}

button{font-family:inherit;font-size:13px;padding:7px 13px;border:1px solid var(--line2);border-radius:8px;background:#fff;color:var(--ink);cursor:pointer;transition:.13s}
button:hover{background:#f6f5fc;border-color:var(--indigo)}
button.primary{background:var(--indigo);color:#fff;border-color:var(--indigo)}
button.primary:hover{background:var(--indigo-d)}
button.accent{background:var(--violet);color:#fff;border-color:var(--violet)}
button.accent:hover{filter:brightness(.93)}
button.danger{color:var(--bad);border-color:#f0c8c8}
button.mini{font-size:11.5px;padding:3px 9px}
button.wide{width:100%;margin-top:8px}
button.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}

.board-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:12px}

.edit-panel{display:none;margin-top:12px;padding:12px;background:var(--bg);border-radius:10px}
.edit-panel.show{display:block}
.ep-title{font-size:12px;font-weight:600;color:var(--ink2);margin-bottom:8px}
.piece-group{display:flex;align-items:center;gap:9px;margin-bottom:7px}
.pg-label{font-size:11.5px;color:var(--ink3);width:30px;flex:none}
.pg-items{display:flex;gap:4px;flex-wrap:wrap}
.piece-btn{width:32px;height:32px;padding:0;font-size:15px;font-family:"KaiTi","STKaiti",serif;font-weight:600}
.piece-btn.red{color:#b3271e}
.piece-btn.black{color:#1f1f1f}
.ep-actions{display:flex;gap:7px;margin-top:9px}
.ep-actions button{flex:1}

.panel-col{display:flex;flex-direction:column;gap:12px}
.tabs{display:flex;gap:5px;background:#eeecf9;padding:4px;border-radius:10px}
.tab{flex:1;border:none;background:transparent;padding:7px;font-size:13px;font-weight:500;color:var(--ink2)}
.tab.active{background:#fff;color:var(--indigo);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.tab-panel{display:none;flex-direction:column;gap:12px}
.tab-panel.active{display:flex}

.side-col{display:flex;flex-direction:column;gap:12px}

.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:15px 16px}
.card-head{font-size:13px;font-weight:600;color:var(--indigo-d);margin-bottom:11px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.card-head .hint{font-size:11px;color:var(--ink3);font-weight:400}
.empty{font-size:12.5px;color:var(--ink3);padding:14px 0;text-align:center}

.engine-panel{min-height:110px}
.ep-row{display:flex;align-items:center;gap:9px;margin-bottom:8px;flex-wrap:wrap}
.ep-label{font-size:11.5px;color:var(--ink3);min-width:56px}
.ep-score{font-size:17px;font-weight:600;color:var(--indigo)}
.ep-num{font-size:12px;color:var(--ink2);font-variant-numeric:tabular-nums}
.ep-bar{flex:1;height:7px;background:#eceaf5;border-radius:4px;overflow:hidden;min-width:70px}
.ep-bar i{display:block;height:100%;border-radius:4px}
.ep-pv{font-family:ui-monospace,Consolas,monospace;font-size:11.5px;color:var(--ink2);background:var(--bg);padding:8px 10px;border-radius:7px;line-height:1.65;word-break:break-all}

.field{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;font-size:13px}
select,.text-input{font-family:inherit;font-size:13px;padding:6px 10px;border:1px solid var(--line2);border-radius:7px;background:#fff;color:var(--ink)}
.text-input{width:100%;margin-bottom:8px}
.mini-actions{display:flex;gap:7px}
.mini-actions button{flex:1}

.cloud-panel{max-height:420px;overflow-y:auto}
.cloud-row{display:flex;align-items:center;gap:9px;padding:6px 8px;border-radius:7px;cursor:pointer;font-size:12.5px}
.cloud-row:hover{background:var(--bg)}
.cr-move{font-family:ui-monospace,Consolas,monospace;font-weight:600;width:52px;flex:none}
.cr-score{width:40px;flex:none;color:var(--indigo);font-variant-numeric:tabular-nums}
.cr-wr{width:44px;flex:none;color:var(--ink3);font-variant-numeric:tabular-nums}
.cr-note{flex:1;color:var(--ink3);font-size:11px;text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.move-list{max-height:460px;overflow-y:auto}
.move-row{display:flex;align-items:center;gap:6px;padding:3px 0;font-size:13px;flex-wrap:wrap}
.move-num{color:var(--ink3);font-size:11.5px;width:30px;flex:none;font-variant-numeric:tabular-nums}
.move-item{padding:3px 7px;border-radius:5px;cursor:pointer;font-family:"KaiTi","STKaiti",serif}
.move-item:hover{background:var(--bg)}
.move-item.active{background:var(--indigo);color:#fff}
.move-item.bad{position:relative;color:#c0392b}
.move-item.bad::after{content:attr(data-mark);font-size:9px;vertical-align:super;margin-left:1px}

.review-panel{min-height:90px}
.rp-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-bottom:12px}
.rp-stat{background:var(--bg);border-radius:9px;padding:10px;text-align:center}
.rp-stat .v{font-size:19px;font-weight:700;color:var(--indigo)}
.rp-stat .l{font-size:11px;color:var(--ink3)}
.rp-types{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px}
.rp-type{font-size:11.5px;background:#fdf2e3;color:var(--warn);padding:3px 9px;border-radius:20px}
.rp-type b{margin-left:4px}
.rp-list{max-height:300px;overflow-y:auto}
.rp-item{display:flex;align-items:center;gap:9px;padding:6px 8px;border-radius:7px;cursor:pointer;font-size:12.5px}
.rp-item:hover{background:var(--bg)}
.rp-mark{font-weight:700;width:20px;flex:none;text-align:center}
.rp-move{flex:none;font-family:"KaiTi","STKaiti",serif}
.rp-detail{color:var(--ink3);font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.curve{min-height:110px;display:flex;align-items:center}
.curve svg{display:block}

.game-list{max-height:340px;overflow-y:auto}
.game-item{display:flex;align-items:center;justify-content:space-between;gap:9px;padding:8px;border-radius:9px;border:1px solid var(--line);margin-bottom:7px}
.game-item:hover{background:var(--bg)}
.gi-title{font-size:13px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gi-meta{font-size:11px;color:var(--ink3)}
.mistake-list{max-height:280px;overflow-y:auto}
.mistake-item{padding:7px 9px;border-radius:8px;border:1px solid var(--line);margin-bottom:6px;cursor:pointer}
.mistake-item:hover{background:var(--bg)}
.mi-main{font-size:12.5px}
.mi-meta{font-size:11px;color:var(--ink3)}

.modal{display:none;position:fixed;inset:0;background:rgba(28,26,46,.45);align-items:center;justify-content:center;z-index:100}
.modal-box{background:#fff;border-radius:14px;padding:22px;width:min(400px,92vw)}
.mb-head{font-size:15px;font-weight:600;margin-bottom:13px}
.progress{position:relative;height:26px;background:var(--bg);border-radius:8px;overflow:hidden}
.progress .fill{height:100%;width:0;background:linear-gradient(90deg,var(--indigo),var(--violet));transition:width .2s}
.progress .label{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--indigo-d);font-weight:500}
.mb-note{font-size:12px;color:var(--ink3);margin-top:10px}
.result-text{font-size:20px;font-weight:600;color:var(--indigo);text-align:center;padding:12px 0}

.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(16px);background:var(--ink);color:#fff;padding:9px 20px;border-radius:22px;font-size:13px;opacity:0;pointer-events:none;transition:.22s;z-index:200}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:1100px){
  .layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .side-col{grid-column:1/-1}
}
@media(max-width:760px){
  .layout{grid-template-columns:1fr;padding:12px;gap:12px}
  .board-actions{grid-template-columns:repeat(2,1fr)}
  .topbar{padding:11px 14px}
  .brand h1{font-size:15px}
}

.insight-panel{min-height:120px}
.insight-diag{background:linear-gradient(90deg,#eeecf9,#f6f0fb);border-left:3px solid var(--indigo);padding:10px 13px;border-radius:0 8px 8px 0;font-size:13px;color:var(--indigo-d);margin-bottom:13px;line-height:1.65}
.cluster-list{margin-bottom:14px}
.cluster-row{display:flex;align-items:center;gap:10px;margin-bottom:7px;font-size:12.5px}
.cr-name{width:74px;flex:none;font-weight:500}
.cr-bar{flex:1;height:8px;background:#eceaf5;border-radius:4px;overflow:hidden;min-width:50px}
.cr-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--indigo),var(--violet));border-radius:4px}
.cr-num{width:96px;flex:none;text-align:right;color:var(--ink3);font-size:11.5px;font-variant-numeric:tabular-nums}
.advice-list{display:flex;flex-direction:column;gap:9px}
.advice-item{display:flex;gap:10px;padding:10px 12px;background:var(--bg);border-radius:9px}
.adv-prio{flex:none;width:22px;height:22px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;color:#fff}
.prio-high{background:#d33} .prio-mid{background:#c9a227} .prio-low{background:#3a8f5f}
.adv-body{flex:1;min-width:0}
.adv-focus{font-size:13px;font-weight:600;margin-bottom:3px;display:flex;align-items:center;gap:7px}
.adv-focus span{font-size:11px;color:var(--ink3);font-weight:400}
.adv-text{font-size:12.5px;color:var(--ink2);line-height:1.6}