diff --git a/src/App.tsx b/src/App.tsx
index 4a4bc2b..a76f9dd 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -268,11 +268,16 @@ function Showcase() {
   }
 
   function selectRange(minKey: "minCoin" | "minPrice", maxKey: "maxCoin" | "maxPrice", min: string, max: string) {
-    setFilters((current) => ({ ...current, [minKey]: min, [maxKey]: max }));
+    setFilters((current) => {
+      if (current[minKey] === min && current[maxKey] === max) {
+        return { ...current, [minKey]: "", [maxKey]: "" };
+      }
+      return { ...current, [minKey]: min, [maxKey]: max };
+    });
   }
 
   function setSort(sortKey: string) {
-    setActiveSort((current) => (current === sortKey && sortKey !== "recommended" ? "recommended" : sortKey));
+    setActiveSort(sortKey);
     setPage(1);
   }
 
@@ -351,7 +356,10 @@ function Showcase() {
       ) : null}
 
       <section className="filter-board">
-        <div className="section-title">筛选条件</div>
+        <div className="section-title">
+          <i />
+          筛选条件
+        </div>
         <div className="filter-grid">
           <FilterRow
             active={(item) => filters.minCoin === item.min && filters.maxCoin === item.max}
@@ -430,33 +438,39 @@ function Showcase() {
           <div className="range-fields">
             <label>
               <span>哈夫币范围</span>
-              <Input
-                inputMode="numeric"
-                placeholder="最小"
-                value={filters.minCoin}
-                onChange={(event) => updateFilter("minCoin", event.target.value)}
-              />
-              <Input
-                inputMode="numeric"
-                placeholder="最大"
-                value={filters.maxCoin}
-                onChange={(event) => updateFilter("maxCoin", event.target.value)}
-              />
+              <div className="range-inputs">
+                <Input
+                  inputMode="numeric"
+                  placeholder="最小"
+                  value={filters.minCoin}
+                  onChange={(event) => updateFilter("minCoin", event.target.value)}
+                />
+                <em>至</em>
+                <Input
+                  inputMode="numeric"
+                  placeholder="最大"
+                  value={filters.maxCoin}
+                  onChange={(event) => updateFilter("maxCoin", event.target.value)}
+                />
+              </div>
             </label>
             <label>
               <span>KD范围</span>
-              <Input
-                inputMode="decimal"
-                placeholder="最小"
-                value={filters.minKd}
-                onChange={(event) => updateFilter("minKd", event.target.value)}
-              />
-              <Input
-                inputMode="decimal"
-                placeholder="最大"
-                value={filters.maxKd}
-                onChange={(event) => updateFilter("maxKd", event.target.value)}
-              />
+              <div className="range-inputs">
+                <Input
+                  inputMode="decimal"
+                  placeholder="最小"
+                  value={filters.minKd}
+                  onChange={(event) => updateFilter("minKd", event.target.value)}
+                />
+                <em>至</em>
+                <Input
+                  inputMode="decimal"
+                  placeholder="最大"
+                  value={filters.maxKd}
+                  onChange={(event) => updateFilter("maxKd", event.target.value)}
+                />
+              </div>
             </label>
           </div>
           {skinSections.map((section) => (
@@ -472,19 +486,27 @@ function Showcase() {
         </div>
 
         <div className="filter-footer">
-          <Button type="link" onClick={() => setAdvancedOpen((open) => !open)}>
-            {advancedOpen ? "收起高级筛选" : "展开高级筛选"} <DownOutlined rotate={advancedOpen ? 180 : 0} />
-          </Button>
+          <button className="advanced-toggle" type="button" onClick={() => setAdvancedOpen((open) => !open)}>
+            {advancedOpen ? "收起高级筛选" : "展开高级筛选"}
+            <DownOutlined rotate={advancedOpen ? 180 : 0} />
+          </button>
         </div>
       </section>
 
       <section className="result-area">
         <div className="sort-toolbar">
-          <div className="sort-buttons">
+          <div className="sort-segment" role="tablist" aria-label="排序方式">
             {sortOptions.map((option) => (
-              <Button key={option.key} className={activeSort === option.key ? "active" : ""} onClick={() => setSort(option.key)}>
-                {option.label} <DownOutlined />
-              </Button>
+              <button
+                key={option.key}
+                type="button"
+                role="tab"
+                aria-selected={activeSort === option.key}
+                className={activeSort === option.key ? "active" : ""}
+                onClick={() => setSort(option.key)}
+              >
+                {option.label}
+              </button>
             ))}
           </div>
           <div className="toolbar-actions">
@@ -560,12 +582,19 @@ interface FilterRowProps<T> {
 function FilterRow<T>({ active, label, onSelect, options, render }: FilterRowProps<T>) {
   return (
     <div className="filter-row">
-      <span>{label}</span>
+      <span className="filter-label">{label}</span>
       <div className="chip-list">
         {options.map((item) => {
           const text = render(item);
+          const selected = active(item);
           return (
-            <button key={text} className={active(item) ? "selected" : ""} type="button" onClick={() => onSelect(item)}>
+            <button
+              key={text}
+              className={selected ? "selected" : ""}
+              type="button"
+              aria-pressed={selected}
+              onClick={() => onSelect(item)}
+            >
               {text}
             </button>
           );
diff --git a/src/styles.css b/src/styles.css
index 852df82..a5d15b0 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -271,38 +271,49 @@ input {
 }
 
 .filter-board {
-  padding: 18px 22px 10px;
+  padding: 18px 22px 12px;
 }
 
 .section-title {
-  margin-bottom: 12px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 14px;
   color: var(--text-main);
-  font-size: 14px;
+  font-size: 15px;
   font-weight: 900;
+  letter-spacing: 0.01em;
+}
+
+.section-title i {
+  width: 3px;
+  height: 14px;
+  border-radius: 99px;
+  background: linear-gradient(180deg, #ff8b2f, var(--brand));
 }
 
 .filter-grid {
   display: grid;
   grid-template-columns: minmax(0, 1fr) minmax(360px, 0.74fr);
-  gap: 12px 64px;
+  gap: 14px 56px;
 }
 
 .filter-row {
   min-width: 0;
   display: grid;
-  grid-template-columns: 76px minmax(0, 1fr);
+  grid-template-columns: 72px minmax(0, 1fr);
   align-items: start;
-  gap: 10px;
+  gap: 12px;
 }
 
-.filter-row > span,
-.range-fields span {
-  min-height: 26px;
+.filter-label,
+.range-fields > label > span {
+  min-height: 30px;
   display: inline-flex;
   align-items: center;
-  color: #344054;
+  color: #667085;
   font-size: 13px;
-  font-weight: 900;
+  font-weight: 700;
   white-space: nowrap;
 }
 
@@ -310,37 +321,72 @@ input {
   min-width: 0;
   display: flex;
   flex-wrap: wrap;
-  gap: 7px;
+  gap: 8px;
 }
 
 .chip-list button {
-  min-width: 42px;
-  height: 26px;
-  padding: 0 10px;
-  border: 1px solid #e6ebf2;
-  border-radius: 4px;
-  background: #f7f9fc;
-  color: #647179;
+  min-width: 44px;
+  height: 30px;
+  padding: 0 12px;
+  border: 1px solid transparent;
+  border-radius: 999px;
+  background: #f4f6f9;
+  color: #5b6572;
   font-size: 12px;
   font-weight: 700;
+  line-height: 1;
   cursor: pointer;
+  transition:
+    color 0.15s ease,
+    background 0.15s ease,
+    border-color 0.15s ease,
+    box-shadow 0.15s ease,
+    transform 0.15s ease;
+}
+
+.chip-list button:hover {
+  color: var(--brand-dark);
+  background: #fff4ea;
+  border-color: #ffd7b5;
 }
 
 .chip-list button.selected {
-  border-color: var(--brand);
-  color: var(--brand-dark);
-  background: var(--brand-soft);
+  color: #fff;
+  background: linear-gradient(135deg, #ff8b2f, var(--brand));
+  border-color: transparent;
+  box-shadow: 0 6px 14px rgba(255, 107, 0, 0.22);
+}
+
+.chip-list button.selected:hover {
+  color: #fff;
+  background: linear-gradient(135deg, #ff9a45, var(--brand-dark));
+}
+
+.chip-list button:active {
+  transform: translateY(1px);
 }
 
 .compact-select .ant-select {
-  width: min(270px, 100%);
+  width: min(280px, 100%);
+}
+
+.compact-select .ant-select-selector {
+  min-height: 34px !important;
+  border-radius: 10px !important;
+  border-color: #e6ebf2 !important;
+  background: #f8fafc !important;
+}
+
+.compact-select .ant-select-focused .ant-select-selector {
+  border-color: var(--brand) !important;
+  box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.12) !important;
 }
 
 .advanced-panel {
   display: none;
   padding-top: 16px;
-  border-top: 1px solid #eef2f3;
-  margin-top: 14px;
+  border-top: 1px dashed #e8edf3;
+  margin-top: 16px;
 }
 
 .advanced-panel.open {
@@ -354,52 +400,114 @@ input {
   gap: 16px 38px;
 }
 
-.range-fields label {
+.range-fields > label {
   display: grid;
-  grid-template-columns: 76px minmax(0, 1fr) minmax(0, 1fr);
+  grid-template-columns: 72px minmax(0, 1fr);
   align-items: center;
-  gap: 10px;
+  gap: 12px;
+}
+
+.range-inputs {
+  min-width: 0;
+  display: grid;
+  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
+  align-items: center;
+  gap: 8px;
+}
+
+.range-inputs em {
+  color: #98a2b3;
+  font-size: 12px;
+  font-style: normal;
+  font-weight: 700;
+}
+
+.range-inputs .ant-input {
+  border-radius: 10px;
+  background: #f8fafc;
 }
 
 .filter-footer {
-  justify-content: flex-end;
+  justify-content: center;
   min-height: 44px;
+  padding-top: 4px;
 }
 
-.filter-footer .ant-btn {
-  color: #394a4f;
-  font-weight: 800;
+.advanced-toggle {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 14px;
+  border: none;
+  border-radius: 999px;
+  background: transparent;
+  color: #667085;
+  font-size: 13px;
+  font-weight: 700;
+  cursor: pointer;
+  transition: color 0.15s ease, background 0.15s ease;
+}
+
+.advanced-toggle:hover {
+  color: var(--brand-dark);
+  background: var(--brand-soft);
+}
+
+.advanced-toggle .anticon {
+  font-size: 11px;
 }
 
 .result-area {
   margin-top: 14px;
-  padding: 18px 16px 28px;
+  padding: 16px 16px 28px;
 }
 
 .sort-toolbar {
   justify-content: space-between;
-  gap: 18px;
-  margin-bottom: 14px;
+  align-items: center;
+  gap: 14px;
+  margin-bottom: 16px;
+  padding-bottom: 14px;
+  border-bottom: 1px solid #eef2f6;
 }
 
-.sort-buttons {
+.sort-segment {
   min-width: 0;
-  display: flex;
+  display: inline-flex;
   flex-wrap: wrap;
-  gap: 10px;
+  gap: 4px;
+  padding: 4px;
+  border-radius: 12px;
+  background: #f3f5f8;
+  border: 1px solid #e8edf3;
 }
 
-.sort-buttons .ant-btn {
-  color: #596872;
-  background: #f6f8fb;
-  border-color: #dfe7ec;
-  font-weight: 800;
+.sort-segment button {
+  height: 32px;
+  padding: 0 12px;
+  border: none;
+  border-radius: 9px;
+  background: transparent;
+  color: #667085;
+  font-size: 13px;
+  font-weight: 700;
+  white-space: nowrap;
+  cursor: pointer;
+  transition:
+    color 0.15s ease,
+    background 0.15s ease,
+    box-shadow 0.15s ease;
 }
 
-.sort-buttons .ant-btn.active {
+.sort-segment button:hover {
+  color: var(--text-main);
+  background: rgba(255, 255, 255, 0.7);
+}
+
+.sort-segment button.active {
   color: var(--brand-dark);
-  background: var(--brand-soft);
-  border-color: var(--brand);
+  background: #fff;
+  box-shadow: 0 2px 8px rgba(21, 32, 43, 0.08);
 }
 
 .toolbar-actions {
@@ -408,8 +516,14 @@ input {
   gap: 10px;
 }
 
+.toolbar-actions .ant-btn {
+  border-radius: 9px;
+  font-weight: 800;
+}
+
 .toolbar-actions .ant-btn-primary {
   font-weight: 900;
+  box-shadow: 0 6px 14px rgba(255, 107, 0, 0.18);
 }
 
 .listing-list {
@@ -742,11 +856,19 @@ input {
   }
 
   .filter-row,
-  .range-fields label {
+  .range-fields > label {
     grid-template-columns: 1fr;
     gap: 7px;
   }
 
+  .sort-segment {
+    width: 100%;
+  }
+
+  .sort-segment button {
+    flex: 1 1 auto;
+  }
+
   .compact-select .ant-select {
     width: 100%;
   }