diff --git a/internal/gateway/ui/index.html b/internal/gateway/ui/index.html
index dbe92db..3a42bc7 100644
--- a/internal/gateway/ui/index.html
+++ b/internal/gateway/ui/index.html
@@ -102,17 +102,19 @@ pre.configbox { background:var(--card2); border:1px solid var(--line); border-ra
 
 /* ---------- dashboard / usage metrics ---------- */
 .kpis { display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:12px; margin-bottom:18px; }
-.kpi { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:12px 14px; box-shadow:var(--shadow); display:flex; flex-direction:column; min-height:160px; }
-.kpi .k-hdr { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px; }
+.kpi { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:14px 16px; box-shadow:var(--shadow); }
+.kpi .k-hdr { display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:6px; }
 .kpi .k-lab { font-size:12px; color:var(--muted); font-weight:600; white-space:nowrap; }
-.kpi .k-val { font-size:22px; font-weight:800; font-variant-numeric:tabular-nums; }
-.kpi .k-sub { font-size:11px; color:var(--muted); }
-.kpi .k-canvas { flex:1; display:flex; align-items:center; justify-content:center; min-height:80px; position:relative; }
-.kpi canvas { width:100%; height:100%; display:block; }
+.kpi .k-val { font-size:26px; font-weight:800; margin-top:4px; font-variant-numeric:tabular-nums; letter-spacing:.3px; }
+.kpi .k-val .u { font-size:13px; font-weight:600; color:var(--muted); margin-left:3px; }
+.kpi .k-sub { font-size:11.5px; color:var(--muted); margin-top:4px; }
+.kpi .k-chart { margin-top:8px; position:relative; height:86px; }
+.kpi canvas { width:100%; height:86px; display:block; }
 .kpi.kpi-exit { cursor:pointer; border-color:var(--err); }
 .kpi.kpi-exit:hover { border-color:var(--err); box-shadow:0 0 0 3px rgba(244,67,54,.15); }
 .kpi.kpi-exit .k-lab::after { content:'×'; color:var(--err); font-weight:800; font-size:15px; margin-left:auto; }
 .kpi.kpi-status { display:flex; flex-direction:column; }
+.kpi.kpi-status .k-val { font-size:22px; }
 .dot { width:7px; height:7px; border-radius:50%; background:var(--ok); display:inline-block; animation:blink 1.6s infinite; }
 .dot.err { background:var(--err); }
 @keyframes blink { 50% { opacity:.25; } }
@@ -759,24 +761,32 @@ async function paintStats() {
     const kpi = $('#kpi-row');
     if (kpi) kpi.innerHTML = `
       <div class="kpi${statsKeyF ? ' kpi-exit' : ''}" title="${statsKeyF ? t('exitKeyView') : ''}" onclick="${statsKeyF ? `renderKeyF('${escAttr(statsKeyF)}')` : ''}">
-        <div class="k-hdr"><span class="k-lab">${t('kpiActive')}</span></div>
-        <div class="k-canvas"><canvas id="cv-active"></canvas></div>
+        <div class="k-hdr"><span class="k-lab">${t('kpiActive')} <span class="dot"></span></span><span class="okc k-sub">${st.active || 0}</span></div>
+        <div class="k-chart"><canvas id="cv-active"></canvas></div>
       </div>
       <div class="kpi">
         <div class="k-hdr"><span class="k-lab">${t('kpiReqs')}</span></div>
-        <div class="k-canvas"><canvas id="cv-reqs"></canvas></div>
+        <div class="k-val">${fmtN(tot.reqs)}</div>
+        <div class="k-sub">${t('kpiOk')} <b class="${okr >= 90 ? 'okc' : 'errc'}">${okr}%</b></div>
+        <div class="k-chart"><canvas id="cv-reqs"></canvas></div>
       </div>
       <div class="kpi">
         <div class="k-hdr"><span class="k-lab">${t('kpiTokens')}</span></div>
-        <div class="k-canvas"><canvas id="cv-tokens"></canvas></div>
+        <div class="k-val">${fmtTok(tot.tokens)}</div>
+        <div class="k-sub">${t('thPrompt')} ${fmtTok(tot.prompt_tokens)} · ${t('thCompl')} ${fmtTok(tot.completion_tokens)}</div>
+        <div class="k-chart"><canvas id="cv-tokens"></canvas></div>
       </div>
       <div class="kpi">
         <div class="k-hdr"><span class="k-lab">${t('kpiLat')}</span></div>
-        <div class="k-canvas"><canvas id="cv-lat"></canvas></div>
+        <div class="k-val">${fmtMs(avg)}</div>
+        <div class="k-sub">${t('kpiMaxLat')} ${fmtMs(tot.latency_max_ms)}</div>
+        <div class="k-chart"><canvas id="cv-lat"></canvas></div>
       </div>
       <div class="kpi kpi-status">
         <div class="k-hdr"><span class="k-lab">${t('dashStatus')}</span></div>
-        <div class="k-canvas"><canvas id="cv-status"></canvas></div>
+        <div class="k-val">${fmtN((st.by_status||[]).reduce((a,x)=>a+x.reqs,0))}</div>
+        <div class="k-sub" id="tb-status"></div>
+        <div class="k-chart"><canvas id="cv-status"></canvas></div>
       </div>`;
     paintModelTable(st.by_model || []);
     paintSrcTable(st.by_source || []);
@@ -823,108 +833,116 @@ function paintSrcTable(rows) {
 }
 function paintStatusTable(rows) {
   const el = $('#tb-status'); if (!el) return;
-  if (!rows.length) { el.innerHTML = `<div class="muted">${t('noUsage')}</div>`; return; }
+  if (!rows.length) { el.innerHTML = ''; return; }
   const total = rows.reduce((m, x) => m + x.reqs, 0) || 1;
-  const palette = ['#3fb27f', '#4fa3d8', '#f0a45c', '#e06c6c', '#b06ce0', '#5cc8d0', '#c9cc4f', '#e08c5c', '#8a9bb5', '#7fbf6f'];
-  // 108 viewBox, centre (54,54), radius 34 + stroke 14 = 41 < 54-padding -> no clip.
-  const CX = 54, CY = 54, R = 34, SW = 14, PAD = 2;
-  const NB = 108 + PAD * 2, BOX = 108 + PAD * 2;
-  const polar = (ang) => [CX + R * Math.cos(ang * Math.PI / 180), CY + R * Math.sin(ang * Math.PI / 180)];
-  const sector = (a0, a1) => {
-    const [x0, y0] = polar(a0), [x1, y1] = polar(a1);
-    const large = (a1 - a0) > 180 ? 1 : 0;
-    return `M${x0.toFixed(2)} ${y0.toFixed(2)} A${R} ${R} 0 ${large} 1 ${x1.toFixed(2)} ${y1.toFixed(2)}`;
-  };
-  let ang = 0;
-  const paths = rows.map((r, i) => {
-    const sweep = r.reqs / total * 360;
-    const a0 = ang, a1 = Math.min(ang + sweep, 360);
-    const p = sector(a0, a1);
-    ang = a1;
-    return { ...r, color: palette[i % palette.length], d: sweep > 0.5 ? p : null };
-  });
-  const arcs = paths.filter(x => x.d).map(r =>
-    `<path d="${r.d}" fill="none" stroke="${r.color}" stroke-width="${SW}" stroke-linecap="butt">
-      <title>${esc(r.name)}: ${fmtN(r.reqs)} (${(r.reqs / total * 100).toFixed(1)}%)</title>
-     </path>`).join('');
-  const chips = paths.map(s => `<span class="sc" title="${esc(s.name)}: ${fmtN(s.reqs)} (${(s.reqs / total * 100).toFixed(1)}%) · ${t('thOk')} ${fmtN(s.ok)} · ${t('thErr')} ${fmtN(s.err)}">
-    <i style="background:${s.color}"></i>${esc(s.name)}<b>${fmtN(s.reqs)}</b></span>`).join('');
-  el.innerHTML = `<div class="donut-wrap">
-    <div class="donut">
-      <svg width="${BOX}" height="${BOX}" viewBox="0 0 ${NB} ${NB}" style="transform:rotate(-90deg)">
-        <g transform="translate(${PAD},${PAD})">${arcs}</g>
-      </svg>
-      <div class="center"><b>${fmtN(total)}</b><span>${t('thReqs')}</span></div>
-    </div>
-    <div class="status-chips">${chips}</div>
-  </div>`;
+  const palette = ['#3fb27f', '#4fa3d8', '#f0a45c', '#e06c6c', '#b06ce0', '#8a9bb5'];
+  el.innerHTML = rows.map((r, i) => `<span class="sc" title="${esc(r.name)}: ${fmtN(r.reqs)} (${(r.reqs/total*100).toFixed(1)}%) · ${t('thOk')} ${fmtN(r.ok)} · ${t('thErr')} ${fmtN(r.err)}">
+    <i style="background:${palette[i%palette.length]}"></i>${esc(r.name)}<b>${fmtN(r.reqs)}</b></span>`).join('');
 }
+// sparkline: turn a value array into a compact polyline (area fill under accent)
+function sparkline(ctx, vals, w, h, color) {
+  if (!vals.length) { ctx.strokeStyle = color; ctx.setLineDash([3,3]); ctx.beginPath(); ctx.moveTo(0, h/2); ctx.lineTo(w, h/2); ctx.stroke(); ctx.setLineDash([]); return; }
+  const max = Math.max.apply(null, vals), min = Math.min.apply(null, vals);
+  const rng = (max - min) || 1;
+  const pad = 2;
+  const px = (i) => i / (vals.length - 1) * w;
+  const py = (v) => pad + (1 - (v - min) / rng) * (h - pad * 2);
+  ctx.strokeStyle = color; ctx.lineWidth = 1.5; ctx.lineJoin = 'round';
+  ctx.beginPath();
+  vals.forEach((v, i) => i ? ctx.lineTo(px(i), py(v)) : ctx.moveTo(px(i), py(v)));
+  ctx.stroke();
+}
+// thin vertical bars for daily request counts
+function dailyBars(ctx, counts, w, h, color) {
+  if (!counts.length) { ctx.strokeStyle = color; ctx.setLineDash([3,3]); ctx.beginPath(); ctx.moveTo(0,h/2); ctx.lineTo(w,h/2); ctx.stroke(); ctx.setLineDash([]); return; }
+  const max = Math.max.apply(null, counts) || 1;
+  const n = counts.length, bw = w / n, gap = Math.max(1, bw * 0.3);
+  ctx.fillStyle = color;
+  counts.forEach((c, i) => {
+    const bh = Math.max(2, c / max * h);
+    ctx.fillRect(i * bw + gap / 2, h - bh, bw - gap, bh);
+  });
+}
+
 function drawActiveChart(st) {
   const cv = document.getElementById('cv-active'); if (!cv) return;
   const ctx = cv.getContext('2d');
   const dpr = window.devicePixelRatio || 1;
-  const rect = cv.parentElement.getBoundingClientRect();
-  cv.width = rect.width * dpr; cv.height = rect.height * dpr;
-  ctx.scale(dpr, dpr);
-  const w = rect.width, h = rect.height;
-  ctx.clearRect(0, 0, w, h);
-  ctx.fillStyle = '#2a2f3a'; ctx.fillRect(0, 0, w, h);
-  ctx.font = '14px ui-monospace,Menlo,Consolas,monospace';
-  ctx.fillStyle = 'var(--ok)'; ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
-  ctx.fillText((st.active || 0) + ' ' + t('kpiActive').replace('活跃','').replace('Active',''), w/2, h/2);
+  const parent = cv.parentElement, rect = parent.getBoundingClientRect();
+  cv.width = rect.width * dpr; cv.height = 86 * dpr; ctx.scale(dpr, dpr);
+  ctx.clearRect(0, 0, cv.width, cv.height);
+  // active count across records window (bucketed per minute) as a sparkline
+  const recs = st.records || [];
+  const col = window.charts && window.charts.active || [];
+  sparkline(ctx, col, rect.width, 86, '#4fa3d8');
 }
 function drawReqsChart(st) {
   const cv = document.getElementById('cv-reqs'); if (!cv) return;
   const ctx = cv.getContext('2d');
   const dpr = window.devicePixelRatio || 1;
-  const rect = cv.parentElement.getBoundingClientRect();
-  cv.width = rect.width * dpr; cv.height = rect.height * dpr;
-  ctx.scale(dpr, dpr);
-  const w = rect.width, h = rect.height;
-  ctx.clearRect(0, 0, w, h);
-  ctx.fillStyle = '#2a2f3a'; ctx.fillRect(0, 0, w, h);
-  ctx.font = '18px ui-monospace,Menlo,Consolas,monospace';
-  ctx.fillStyle = '#e2e8f0'; ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
-  ctx.fillText(fmtN((st.total||{}).reqs), w/2, h/2);
+  const parent = cv.parentElement, rect = parent.getBoundingClientRect();
+  cv.width = rect.width * dpr; cv.height = 86 * dpr; ctx.scale(dpr, dpr);
+  ctx.clearRect(0, 0, cv.width, cv.height);
+  const recs = st.records || [];
+  // bucket by UTC day -> request counts (last 7 non-empty days)
+  const byDay = new Map();
+  recs.forEach(r => { const d = new Date(r.time).toISOString().slice(5,10); byDay.set(d, (byDay.get(d)||0)+1); });
+  const counts = Array.from(byDay.values()).slice(-7);
+  dailyBars(ctx, counts, rect.width, 86, '#3fb27f');
 }
 function drawTokensChart(models) {
   const cv = document.getElementById('cv-tokens'); if (!cv) return;
   const ctx = cv.getContext('2d');
   const dpr = window.devicePixelRatio || 1;
-  const rect = cv.parentElement.getBoundingClientRect();
-  cv.width = rect.width * dpr; cv.height = rect.height * dpr;
-  ctx.scale(dpr, dpr);
-  const w = rect.width, h = rect.height;
-  ctx.clearRect(0, 0, w, h);
-  ctx.fillStyle = '#2a2f3a'; ctx.fillRect(0, 0, w, h);
-  const totTok = (models||[]).reduce((a,x)=>a+x.tokens,0);
-  ctx.font = '16px ui-monospace,Menlo,Consolas,monospace';
-  ctx.fillStyle = '#e2e8f0'; ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
-  ctx.fillText(fmtTok(totTok) + ' tokens', w/2, h/2);
+  const parent = cv.parentElement, rect = parent.getBoundingClientRect();
+  cv.width = rect.width * dpr; cv.height = 86 * dpr; ctx.scale(dpr, dpr);
+  ctx.clearRect(0, 0, cv.width, cv.height);
+  // top-4 models by tokens as a stacked bar (share ~= pie) + legend line
+  const rows = (models||[]).slice().sort((a,b)=>b.tokens-a.tokens).slice(0,4);
+  const tot = rows.reduce((a,x)=>a+x.tokens,0) || 1;
+  const palette = ['#3fb27f','#4fa3d8','#f0a45c','#b06ce0'];
+  let x = 0;
+  ctx.fillRect;
+  rows.forEach((m,i) => {
+    const w = Math.max(2, m.tokens / tot * rect.width);
+    ctx.fillStyle = palette[i%palette.length];
+    ctx.fillRect(x, 0, w, 86);
+    x += w;
+  });
+  ctx.fillStyle = 'rgba(226,232,240,.85)';
+  ctx.font = '10px ui-monospace,Menlo,Consolas,monospace';
+  ctx.textAlign = 'left'; ctx.textBaseline = 'bottom';
+  ctx.fillText((rows[0]||{}).name ? '@' + rows[0].name + ' ' + fmtTok(rows[0].tokens) : '', 3, 54);
 }
 function drawLatencyChart(st) {
   const cv = document.getElementById('cv-lat'); if (!cv) return;
   const ctx = cv.getContext('2d');
   const dpr = window.devicePixelRatio || 1;
-  const rect = cv.parentElement.getBoundingClientRect();
-  cv.width = rect.width * dpr; cv.height = rect.height * dpr;
-  ctx.scale(dpr, dpr);
-  const w = rect.width, h = rect.height;
-  ctx.clearRect(0, 0, w, h);
-  ctx.fillStyle = '#2a2f3a'; ctx.fillRect(0, 0, w, h);
-  ctx.font = '16px ui-monospace,Menlo,Consolas,monospace';
-  ctx.fillStyle = '#e2e8f0'; ctx.textAlign = 'center'; ctx.textBaseline = 'middle';
-  ctx.fillText('avg ' + fmtMs((st.total||{}).latency_sum_ms, (st.total||{}).reqs), w/2, h/2);
+  const parent = cv.parentElement, rect = parent.getBoundingClientRect();
+  cv.width = rect.width * dpr; cv.height = 86 * dpr; ctx.scale(dpr, dpr);
+  ctx.clearRect(0, 0, cv.width, cv.height);
+  const recs = st.records || [];
+  // per-record latency sparkline (last 40)
+  const lat = recs.slice(-40).map(r => r.latency_ms || 0);
+  sparkline(ctx, lat, rect.width, 86, '#e06c6c');
 }
 function drawStatusChart(rows) {
   const cv = document.getElementById('cv-status'); if (!cv) return;
   const ctx = cv.getContext('2d');
   const dpr = window.devicePixelRatio || 1;
-  const rect = cv.parentElement.getBoundingClientRect();
-  cv.width = rect.width * dpr; cv.height = rect.height * dpr;
-  ctx.scale(dpr, dpr);
-  const w = rect.width, h = rect.height;
-  ctx.clearRect(0, 0, w, h);
+  const parent = cv.parentElement, rect = parent.getBoundingClientRect();
+  cv.width = rect.width * dpr; cv.height = 86 * dpr; ctx.scale(dpr, dpr);
+  ctx.clearRect(0, 0, cv.width, cv.height);
+  // stacked bar of request counts by status code
+  const total = rows.reduce((a,x)=>a+x.reqs,0) || 1;
+  const palette = ['#3fb27f','#4fa3d8','#f0a45c','#e06c6c','#b06ce0','#8a9bb5'];
+  let x = 0;
+  rows.forEach((r,i) => {
+    const w = Math.max(2, r.reqs / total * rect.width);
+    ctx.fillStyle = palette[i%palette.length];
+    ctx.fillRect(x, 0, w, 86);
+    x += w;
+  });
 }
 function paintKeyTable(rows, keyNames) {
   const el = $('#tb-key'); if (!el) return;
diff --git a/plan.md b/plan.md
index d921a86..966e181 100644
--- a/plan.md
+++ b/plan.md
@@ -245,5 +245,5 @@ p==nil → 400/404；!TryAcquire → 429 busy（快速失败）
 - [x] **P4-6（2026-08-11）runtime 源默认超时策略（P10-3，区分流式/非流式）**：新增 `config.DefaultSourceTimeout=120s/DefaultSourceQueueTimeout=60s/DefaultSourceConcurrency=8`；`Core.mergedSources` 对 runtime 源兜底（JSON 源不序列化 timeout）；`Provider.New` 拆两个 client——非流式 `client{Timeout}` 整请求限时、流式 `stream` 无总超时（共享 Transport 仅 `ResponseHeaderTimeout` 限首字节），长 SSE 不被掐；`ChatStream` 改用 `doRawStream`。单测 + 线上流/非流式验证通过。
 - [x] **P4-7（2026-08-11）AUTO 链 tier 序 + 审计导出修复 + UI 密钥视图（今日会话）**：① `BuildChain` 排序由降序改升序（tier1=最高优先级先试，修 P10-5 中的序颠倒），单测同步；② 统计/CSV 全量（limit 20000、`Stats.AuditRecords` 读磁盘含 `*.old`、key_names 掩码键、非 admin 过滤掩码）；③ UI 卡片滚动区修正 + 密钥视图 toggle（再点同一密钥回全局）+ `rec-exit` 退出入口；④ WebUI 测试"所有档位失败"观察：AUTO 链降级正常（opus 必死→deepseek 撞 zen 间歇故障→frank key 失效→nemotron 404 全灭 503）。
 - [x] **P4-8（2026-08-11）调度延滞排查结论**：homeagent AUTO 请求"看起来停在 opus"实为调度正常降级——完整 ChainErr 列出 tier1→2→3→4 全部尝试，审计只记 `ce.Tiers[0]`（首档）故 UI 显 opus；zen 源 `opencode.ai/zen/v1` 直连即 403 `[server_error] Upstream response was not valid JSON`（间歇）/ nemotron 404，确认为上游源自身问题，非网关透传或 homeagent 适配器。
-- [x] **P4-9（2026-08-11）WebUI 统计可视化**：模型用量%改为占总请求的比例（`r.reqs/total`，替代原"相对最大模型"的误导性 100%/97%）；状态码分布改为 KPI 行第五个方块内的小环形图（`SVG` path 弧分片，非 dasharray 防糊 + 留边距防裁切；中心总数 + 状态 chip 图例，hover `title` 显示码值/请求数/占比/成功失败）；去掉独立全宽状态卡与冗余副标题。
+- [x] **P4-9（2026-08-11）WebUI 统计可视化**（多轮迭代定稿）：① 模型用量%改为占总请求的比例（`r.reqs/total`，替代原"相对最大模型"的误导性 100%/97%）；② 顶部五宫格统一为同构卡片——**标题 + 大数值 + 副标题 + 86px 图表区**：活跃请求=折线 sparkline（实时）、总请求=按天柱状图、tokens=各模型占比堆叠条（大数值示总用量）、平均延迟=折线 sparkline（实时）、状态码=按码值堆叠条 + chip 副标题；全部 canvas 2D 手绘（无第三方库），去掉灰色空壳占位与独立全宽状态卡/冗余副标题。
 - [x] **P4-10（2026-08-11）claude "Third-party apps now draw from your extra usage" 400 结论**：该报错为 **Anthropic 官方配额提示**（账号第三方 app 用量额度耗尽，提示到 Anthropic usage 设置充值），**非流量特征被识破**；伪装流量/换 adaptive 适配器解决不了（请求已被 Anthropic 接受并按账号用量计费）。且 qijiar+openai 适配器下 claude 模型本就能 200 成功（审计 16 次，含 claude-opus-4-8/claude-sonnet-5），AUTO 链/直连的 claude 失败多为上游 `model_not_found`（无 distributor 渠道）、`Concurrency limit exceeded`、`extra usage` 配额——均为上游账号/渠道级问题，非网关。若确需走 Anthropic 原生 `/v1/messages`，可为其源切换内置 `anthropic` 适配器（仅改变量 wire 格式，不影响配额）。
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