diff --git a/index.html b/index.html
index 08b40cd..175c312 100644
--- a/index.html
+++ b/index.html
@@ -15,7 +15,7 @@
           : window.matchMedia?.('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
         document.documentElement.dataset.theme = theme;
         document.documentElement.style.colorScheme = theme;
-        document.documentElement.style.backgroundColor = theme === 'dark' ? '#0b0d11' : '#f6f7f5';
+        document.documentElement.style.backgroundColor = theme === 'dark' ? '#0b0d11' : '#ffffff';
       })();
     </script>
     <title>EasyCLIProxyAPI</title>
diff --git a/src/pages/UsageRecordsPage.tsx b/src/pages/UsageRecordsPage.tsx
index fc00aef..e1bc8cf 100644
--- a/src/pages/UsageRecordsPage.tsx
+++ b/src/pages/UsageRecordsPage.tsx
@@ -6,7 +6,6 @@ import {
   Activity,
   Database,
   Gauge,
-  ListFilter,
   Pencil,
   RefreshCw,
   Trash2,
@@ -248,7 +247,6 @@ export function UsageRecordsPage() {
   const [source, setSource] = useState('');
   const [apiKeyHash, setApiKeyHash] = useState('');
   const [result, setResult] = useState('all');
-  const [advancedFiltersOpen, setAdvancedFiltersOpen] = useState(false);
   const [page, setPage] = useState(1);
   const [pageSize, setPageSize] = useState(50);
   const [status, setStatus] = useState<CollectorStatus | null>(null);
@@ -447,7 +445,6 @@ export function UsageRecordsPage() {
   };
 
   const collectorTone = status?.state === 'error' ? 'error' : status?.state === 'collecting' ? 'success' : '';
-  const activeAdvancedFilterCount = [model, provider, source, apiKeyHash].filter(Boolean).length;
   const hasCurrentSnapshot = loadedScopeKey === scopeKey;
   const showInitialLoading =
     activeTab !== 'data-management' &&
@@ -471,135 +468,118 @@ export function UsageRecordsPage() {
 
   const filterPanel = (
     <section className="panel usage-filter-panel">
-      <div className="usage-filter-header">
-        <span className="usage-filter-title">{t('usage.filter.title')}</span>
-        {activeAdvancedFilterCount > 0 ? (
-          <span className="usage-filter-active">{t('usage.filter.active', { count: activeAdvancedFilterCount })}</span>
-        ) : null}
-      </div>
       <div className="usage-filter-row">
-        <div className="usage-filter-group usage-filter-primary">
+        <div className="usage-filter-group">
           <label className="usage-filter-item">
-            <span className="usage-filter-label">{t('usage.filter.timeRange')}</span>
+            <span className="sr-only">{t('usage.filter.timeRange')}</span>
             <select
-                value={range}
-                onChange={(event) => {
-                  setRange(event.currentTarget.value as UsageRange);
-                  setPage(1);
-                }}
-                aria-label={t('usage.filter.timeRange')}
-              >
-                <option value="4h">{t('usage.range.4h')}</option>
-                <option value="24h">{t('usage.range.24h')}</option>
-                <option value="today">{t('usage.range.today')}</option>
-                <option value="7d">{t('usage.range.7d')}</option>
-                <option value="30d">{t('usage.range.30d')}</option>
-                <option value="all">{t('usage.range.all')}</option>
-                <option value="custom">{t('usage.range.custom')}</option>
-              </select>
-            </label>
+              value={range}
+              onChange={(event) => {
+                setRange(event.currentTarget.value as UsageRange);
+                setPage(1);
+              }}
+              aria-label={t('usage.filter.timeRange')}
+            >
+              <option value="4h">{t('usage.range.4h')}</option>
+              <option value="24h">{t('usage.range.24h')}</option>
+              <option value="today">{t('usage.range.today')}</option>
+              <option value="7d">{t('usage.range.7d')}</option>
+              <option value="30d">{t('usage.range.30d')}</option>
+              <option value="all">{t('usage.range.all')}</option>
+              <option value="custom">{t('usage.range.custom')}</option>
+            </select>
+          </label>
 
-            <label className="usage-filter-item">
-              <span className="usage-filter-label">{t('usage.filter.result')}</span>
-              <select
-                value={result}
-                onChange={(event) => changeFilter(setResult, event.currentTarget.value)}
-                aria-label={t('usage.filter.result')}
-              >
-                <option value="all">{t('usage.filter.allResults')}</option>
-                <option value="success">{t('usage.result.success')}</option>
-                <option value="failed">{t('usage.result.failed')}</option>
-                <option value="canceled">{t('usage.result.canceled')}</option>
-              </select>
-            </label>
-          </div>
-          <button
-            type="button"
-            className={`usage-filter-toggle${advancedFiltersOpen ? ' is-open' : ''}`}
-            aria-expanded={advancedFiltersOpen}
-            onClick={() => setAdvancedFiltersOpen((open) => !open)}
-          >
-            <ListFilter size={15} aria-hidden="true" />
-            <span>{advancedFiltersOpen ? t('usage.filter.hideMore') : t('usage.filter.more')}</span>
-            {activeAdvancedFilterCount > 0 ? <b>{activeAdvancedFilterCount}</b> : null}
-          </button>
+          <label className="usage-filter-item">
+            <span className="sr-only">{t('usage.filter.model')}</span>
+            <select
+              value={model}
+              onChange={(event) => changeFilter(setModel, event.currentTarget.value)}
+              aria-label={t('usage.filter.model')}
+            >
+              <option value="">{t('usage.filter.allModels')}</option>
+              {filterOptions(optionsAnalysis.models).map((item) => (
+                <option value={item.key} key={item.key}>{item.label}</option>
+              ))}
+            </select>
+          </label>
+
+          <label className="usage-filter-item">
+            <span className="sr-only">{t('usage.column.provider')}</span>
+            <select
+              value={provider}
+              onChange={(event) => changeFilter(setProvider, event.currentTarget.value)}
+              aria-label={t('usage.column.provider')}
+            >
+              <option value="">{t('usage.filter.allProviders')}</option>
+              {filterOptions(optionsAnalysis.providers).map((item) => (
+                <option value={item.key} key={item.key}>{item.label}</option>
+              ))}
+            </select>
+          </label>
+
+          <label className="usage-filter-item">
+            <span className="sr-only">{t('usage.filter.source')}</span>
+            <select
+              value={source}
+              onChange={(event) => changeFilter(setSource, event.currentTarget.value)}
+              aria-label={t('usage.filter.source')}
+            >
+              <option value="">{t('usage.filter.allSources')}</option>
+              {filterOptions(optionsAnalysis.sources).map((item) => (
+                <option value={item.key} key={item.key}>{item.label}</option>
+              ))}
+            </select>
+          </label>
+
+          <label className="usage-filter-item">
+            <span className="sr-only">{t('apiAccess.field.key')}</span>
+            <select
+              value={apiKeyHash}
+              onChange={(event) => changeFilter(setApiKeyHash, event.currentTarget.value)}
+              aria-label={t('apiAccess.field.key')}
+            >
+              <option value="">{t('usage.filter.allKeys')}</option>
+              {filterOptions(optionsAnalysis.apiKeys).map((item) => (
+                <option value={item.key} key={item.key}>{item.label}</option>
+              ))}
+            </select>
+          </label>
+
+          <label className="usage-filter-item">
+            <span className="sr-only">{t('usage.filter.result')}</span>
+            <select
+              value={result}
+              onChange={(event) => changeFilter(setResult, event.currentTarget.value)}
+              aria-label={t('usage.filter.result')}
+            >
+              <option value="all">{t('usage.filter.allResults')}</option>
+              <option value="success">{t('usage.result.success')}</option>
+              <option value="failed">{t('usage.result.failed')}</option>
+              <option value="canceled">{t('usage.result.canceled')}</option>
+            </select>
+          </label>
         </div>
+      </div>
 
-        {advancedFiltersOpen ? (
-          <div className="usage-filter-advanced">
-            <label className="usage-filter-item">
-              <span className="usage-filter-label">{t('usage.filter.model')}</span>
-              <select
-                value={model}
-                onChange={(event) => changeFilter(setModel, event.currentTarget.value)}
-                aria-label={t('usage.filter.model')}
-              >
-                <option value="">{t('usage.filter.allModels')}</option>
-                {filterOptions(optionsAnalysis.models).map((item) => (
-                  <option value={item.key} key={item.key}>{item.label}</option>
-                ))}
-              </select>
-            </label>
-            <label className="usage-filter-item">
-              <span className="usage-filter-label">{t('usage.column.provider')}</span>
-              <select
-                value={provider}
-                onChange={(event) => changeFilter(setProvider, event.currentTarget.value)}
-                aria-label={t('usage.column.provider')}
-              >
-                <option value="">{t('usage.filter.allProviders')}</option>
-                {filterOptions(optionsAnalysis.providers).map((item) => (
-                  <option value={item.key} key={item.key}>{item.label}</option>
-                ))}
-              </select>
-            </label>
-            <label className="usage-filter-item">
-              <span className="usage-filter-label">{t('usage.filter.source')}</span>
-              <select
-                value={source}
-                onChange={(event) => changeFilter(setSource, event.currentTarget.value)}
-                aria-label={t('usage.filter.source')}
-              >
-                <option value="">{t('usage.filter.allSources')}</option>
-                {filterOptions(optionsAnalysis.sources).map((item) => (
-                  <option value={item.key} key={item.key}>{item.label}</option>
-                ))}
-              </select>
-            </label>
-            <label className="usage-filter-item">
-              <span className="usage-filter-label">{t('apiAccess.field.key')}</span>
-              <select
-                value={apiKeyHash}
-                onChange={(event) => changeFilter(setApiKeyHash, event.currentTarget.value)}
-                aria-label={t('apiAccess.field.key')}
-              >
-                <option value="">{t('usage.filter.allKeys')}</option>
-                {filterOptions(optionsAnalysis.apiKeys).map((item) => (
-                  <option value={item.key} key={item.key}>{item.label}</option>
-                ))}
-              </select>
-            </label>
-          </div>
-        ) : null}
-
-        {range === 'custom' ? (
-          <div className="usage-custom-range">
-            <input
-              type="datetime-local"
-              value={customStart}
-              onChange={(event) => setCustomStart(event.currentTarget.value)}
-              aria-label={t('usage.filter.startTime')}
-            />
-            <span>{t('usage.filter.to')}</span>
-            <input
-              type="datetime-local"
-              value={customEnd}
-              onChange={(event) => setCustomEnd(event.currentTarget.value)}
-              aria-label={t('usage.filter.endTime')}
-            />
-          </div>
-        ) : null}
-      </section>
+      {range === 'custom' ? (
+        <div className="usage-custom-range">
+          <input
+            type="datetime-local"
+            value={customStart}
+            onChange={(event) => setCustomStart(event.currentTarget.value)}
+            aria-label={t('usage.filter.startTime')}
+          />
+          <span>{t('usage.filter.to')}</span>
+          <input
+            type="datetime-local"
+            value={customEnd}
+            onChange={(event) => setCustomEnd(event.currentTarget.value)}
+            aria-label={t('usage.filter.endTime')}
+          />
+        </div>
+      ) : null}
+    </section>
   );
 
   return (
diff --git a/src/styles/usage-subpages.css b/src/styles/usage-subpages.css
index 0d4f182..4bd9884 100644
--- a/src/styles/usage-subpages.css
+++ b/src/styles/usage-subpages.css
@@ -98,104 +98,28 @@
   background: var(--usage-page-hover);
 }
 
-/* Usage records: keep the common path quiet, and move diagnostic filters out of the way. */
-.usage-records-page .usage-filter-panel {
-  gap: 8px;
-}
-
-.usage-records-page .usage-filter-header {
+/* Keep every usage filter visible. Each select sizes to its option text. */
+.usage-records-page .usage-filter-group {
   display: flex;
+  flex-wrap: wrap;
   align-items: center;
-  gap: 8px;
-  min-height: 22px;
-}
-
-.usage-records-page .usage-filter-title {
-  color: var(--text-primary);
-  font-size: var(--font-size-caption);
-  font-weight: 650;
-}
-
-.usage-records-page .usage-filter-active {
-  padding: 2px 7px;
-  border-radius: 999px;
-  background: color-mix(in srgb, var(--ui-accent) 10%, transparent);
-  color: var(--ui-accent-strong);
-  font-size: 11px;
-  font-weight: 600;
-}
-
-.usage-records-page .usage-filter-row {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  gap: 8px;
-}
-
-.usage-records-page .usage-filter-group.usage-filter-primary {
-  display: flex;
-  flex: 0 1 auto;
-  min-width: 0;
-  flex-wrap: nowrap;
   grid-template-columns: none;
 }
 
-.usage-records-page .usage-filter-primary .usage-filter-item {
-  flex: 0 1 230px;
-  min-width: 170px;
-}
-
-.usage-records-page .usage-filter-toggle {
-  display: inline-flex;
+.usage-records-page .usage-filter-item {
   flex: 0 0 auto;
-  align-items: center;
-  justify-content: center;
-  gap: 6px;
-  height: 36px;
-  padding: 0 11px;
-  border: 1px solid var(--border-color);
-  border-radius: 10px;
-  background: var(--bg-primary);
-  color: var(--text-secondary);
-  font: inherit;
-  font-size: var(--font-size-caption);
-  font-weight: 600;
-  cursor: pointer;
-  transition: border-color .15s ease, background .15s ease, color .15s ease;
-}
-
-.usage-records-page .usage-filter-toggle:hover,
-.usage-records-page .usage-filter-toggle.is-open {
-  border-color: var(--ui-accent);
-  background: color-mix(in srgb, var(--ui-accent) 7%, var(--bg-primary));
-  color: var(--ui-accent-strong);
-}
-
-.usage-records-page .usage-filter-toggle b {
-  display: inline-grid;
-  min-width: 18px;
-  height: 18px;
-  place-items: center;
-  padding: 0 5px;
-  border-radius: 999px;
-  background: color-mix(in srgb, var(--ui-accent) 14%, transparent);
-  font-size: 10px;
-}
-
-.usage-records-page .usage-filter-advanced {
-  display: grid;
-  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
-  gap: 8px;
-  padding-top: 8px;
-  border-top: 1px solid var(--border-color);
-}
-
-.usage-records-page .usage-filter-advanced .usage-filter-item {
+  width: max-content;
+  max-width: 100%;
   min-width: 0;
+  padding: 0 10px 0 12px;
 }
 
-.usage-records-page .usage-custom-range {
-  padding-top: 8px;
+.usage-records-page .usage-filter-item select {
+  width: max-content;
+  max-width: 100%;
+  min-width: 0;
+  field-sizing: content;
+  padding: 0 20px 0 0;
 }
 
 /* The default event view is intentionally compact; secondary diagnostics remain available via tooltips and Columns. */
@@ -231,39 +155,3 @@
   background: color-mix(in srgb, var(--usage-log-surface) 97%, var(--ui-accent));
 }
 
-@media (max-width: 760px) {
-  .usage-records-page .usage-filter-row {
-    align-items: stretch;
-    flex-direction: column;
-  }
-
-  .usage-records-page .usage-filter-group.usage-filter-primary {
-    width: 100%;
-    flex-wrap: wrap;
-  }
-
-  .usage-records-page .usage-filter-primary .usage-filter-item {
-    flex: 1 1 0;
-    min-width: 0;
-  }
-
-  .usage-records-page .usage-filter-toggle {
-    width: 100%;
-  }
-
-  .usage-records-page .usage-filter-advanced {
-    grid-template-columns: repeat(2, minmax(0, 1fr));
-  }
-}
-
-@media (max-width: 480px) {
-  .usage-records-page .usage-filter-group.usage-filter-primary,
-  .usage-records-page .usage-filter-advanced {
-    grid-template-columns: 1fr;
-    flex-direction: column;
-  }
-
-  .usage-records-page .usage-filter-advanced {
-    display: grid;
-  }
-}
diff --git a/src/styles/workspace-white.css b/src/styles/workspace-white.css
index 3f82648..d80cbcc 100644
--- a/src/styles/workspace-white.css
+++ b/src/styles/workspace-white.css
@@ -1,4 +1,18 @@
 /* Light-mode workspace surfaces. Keep the sidebar and semantic status colors separate. */
+:root:not([data-theme='dark']) {
+  --theme-faf9f5: #fff;
+  --bg-secondary: #fff;
+}
+
+:root:not([data-theme='dark']),
+:root:not([data-theme='dark']) body,
+:root:not([data-theme='dark']) #root,
+:root:not([data-theme='dark']) .app-shell,
+:root:not([data-theme='dark']) .workspace,
+:root:not([data-theme='dark']) .workspace .content {
+  background: #fff;
+}
+
 :root:not([data-theme='dark']) :is(.workspace, .config-dialog, dialog) {
   --bg-primary: #fff;
   --bg-secondary: #fff;
@@ -27,11 +41,6 @@
   --text-quaternary: #526174;
 }
 
-:root:not([data-theme='dark']) .workspace,
-:root:not([data-theme='dark']) .workspace .content {
-  background: #fff;
-}
-
 :root:not([data-theme='dark']) .workspace :is(
   .agent-model-section, .agent-auth-segmented, .routing-segmented,
   .plugin-tabs, .usage-analysis-metric,
@@ -114,6 +123,64 @@
   --usage-log-hover: #fff;
 }
 
+/* The usage views and outer panels should read as clean white documents in light mode.
+   Remove neutral zebra fills, gray collector pills, and diffuse card shadows while
+   retaining borders and semantic colors for structure. */
+:root:not([data-theme='dark']) .workspace :is(
+  .usage-records-page,
+  .usage-tab-panel,
+  .usage-filter-panel,
+  .usage-request-log,
+  .usage-events-footer
+) {
+  background: #fff;
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page :is(
+  .usage-trend-panel,
+  .usage-health-panel,
+  .usage-events-panel
+) {
+  background: #fff;
+  border: 1px solid var(--border-color);
+  box-shadow: none;
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page :is(
+  .usage-filter-item,
+  .usage-filter-toggle
+) {
+  background: #fff;
+  border-color: var(--border-color);
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-request-log .usage-events-table tbody tr td,
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-request-log .usage-events-table tbody tr:nth-child(even) td,
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-request-log .usage-events-table tbody tr:hover td {
+  background: #fff !important;
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-pricing-table :is(th, td) {
+  background: #fff;
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-pricing-table tbody tr:hover td {
+  background: #fff !important;
+}
+
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-collector-state,
+:root:not([data-theme='dark']) .workspace .usage-records-page
+  .usage-refresh-btn {
+  background: #fff;
+  border: 1px solid var(--border-color);
+}
+
 /* Empty tracks still need a visible outline after neutral surfaces become white. */
 :root:not([data-theme='dark']) .workspace .usage-model-bar-track {
   box-shadow: inset 0 0 0 1px var(--border-color);
diff --git a/tests/app-shell-accessibility-ui.cjs b/tests/app-shell-accessibility-ui.cjs
index 14d6204..072a03a 100644
--- a/tests/app-shell-accessibility-ui.cjs
+++ b/tests/app-shell-accessibility-ui.cjs
@@ -36,6 +36,26 @@ const path = require('node:path');
     await tabs.first().focus();
     await page.keyboard.press('ArrowRight');
     assert.equal(await tabs.nth(1).getAttribute('aria-selected'), 'true');
+    await page.getByRole('tab', { name: /请求明细/ }).click();
+    await page.locator('.usage-events-table tbody tr').first().waitFor();
+    const usageSurfaces = await page.locator('.usage-records-page .usage-events-table tbody tr').first().evaluate(row => {
+      const cell = row.querySelector('td');
+      const page = row.closest('.usage-records-page');
+      const status = page?.querySelector('.usage-collector-state');
+      return { row: cell ? getComputedStyle(cell).backgroundColor : '', status: status ? getComputedStyle(status).backgroundColor : '' };
+    });
+    assert.equal(usageSurfaces.row, 'rgb(255, 255, 255)', 'light usage rows stay pure white');
+    assert.equal(usageSurfaces.status, 'rgb(255, 255, 255)', 'light usage status stays pure white');
+    const shellSurfaces = await page.evaluate(() => {
+      const shell = document.querySelector('.app-shell');
+      const content = document.querySelector('.content');
+      return {
+        shell: shell ? getComputedStyle(shell).backgroundColor : '',
+        content: content ? getComputedStyle(content).backgroundColor : '',
+      };
+    });
+    assert.equal(shellSurfaces.shell, 'rgb(255, 255, 255)', 'light app shell stays pure white');
+    assert.equal(shellSurfaces.content, 'rgb(255, 255, 255)', 'light content stays pure white');
     await page.getByRole('tab', { name: /数据管理/ }).click();
     assert.equal(await page.locator('.usage-filter-panel').count(), 0);