优化 PC 首页点击式筛选与排序体验

默认区平铺常用条件并支持刀皮/红皮/枪皮多选，高级筛选折叠展示；修复综合推荐无法选中、筛选排序导致页面回顶等问题。

frontend/src/styles/home-filters.css

@@ -1,41 +1,183 @@
 /* 筛选器相关样式 */
 .horizontal-filter-card {
-  padding: 24px;
+  padding: 20px 22px 16px;
   border: 1px solid #eef1f5;
   border-radius: 16px;
   background: #ffffff;
   box-shadow: 0 4px 12px rgba(23, 35, 61, 0.03);
 }
 
+.quick-filter-card {
+  padding-bottom: 12px;
+}
+
 .filter-header {
   display: flex;
   gap: 16px;
   justify-content: space-between;
   align-items: center;
-  margin-bottom: 20px;
+  margin-bottom: 14px;
 }
 
 .filter-title {
   display: flex;
   align-items: center;
-  gap: 12px;
+  gap: 10px;
+}
+
+.filter-title-bar {
+  display: inline-block;
+  flex: 0 0 auto;
+  width: 4px;
+  height: 16px;
+  border-radius: 999px;
+  background: #ff6a00 !important;
+  box-shadow: 0 0 0 1px rgba(255, 106, 0, 0.12);
 }
 
 .filter-title strong {
-  font-size: 18px;
+  font-size: 15px;
   font-weight: 800;
   color: #17233d;
 }
 
 .filter-title span {
-  padding: 4px 10px;
-  border-radius: 6px;
+  padding: 2px 8px;
+  border-radius: 999px;
   background: #f1f5f9;
-  font-size: 13px;
+  font-size: 12px;
   font-weight: 700;
   color: #64748b;
 }
 
+/* PC 点击式快速筛选 */
+.quick-filter-grid {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: 12px 28px;
+}
+
+.filter-field {
+  display: grid;
+  grid-template-columns: 64px minmax(0, 1fr);
+  gap: 10px;
+  align-items: start;
+}
+
+.filter-field-full {
+  grid-column: 1 / -1;
+}
+
+.filter-field label {
+  padding-top: 6px;
+  font-size: 13px;
+  font-weight: 700;
+  color: #334155;
+  line-height: 1.3;
+  white-space: nowrap;
+}
+
+.pill-row {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  min-height: 28px;
+  align-items: center;
+}
+
+.pill-chip {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-height: 28px;
+  padding: 4px 12px;
+  border: none;
+  border-radius: 999px;
+  background: #f3f5f9;
+  color: #475569;
+  font-size: 12px;
+  font-weight: 600;
+  line-height: 1.2;
+  cursor: pointer;
+  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
+}
+
+.pill-chip:hover {
+  background: #e8edf5;
+  color: #1e293b;
+}
+
+.pill-chip.active {
+  background: #fff1e6;
+  color: #ff6a00;
+  box-shadow: inset 0 0 0 1px #ffd0a8;
+}
+
+.pill-empty {
+  font-size: 12px;
+  color: #94a3b8;
+}
+
+.advanced-toggle-row {
+  display: flex;
+  justify-content: center;
+  margin-top: 14px;
+  padding-top: 4px;
+}
+
+.advanced-toggle {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 12px;
+  border: none;
+  background: transparent;
+  color: #64748b;
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+}
+
+.advanced-toggle:hover {
+  color: #ff6a00;
+}
+
+.advanced-toggle em {
+  min-width: 18px;
+  height: 18px;
+  padding: 0 5px;
+  border-radius: 999px;
+  background: #ff6a00;
+  color: #fff;
+  font-size: 11px;
+  font-style: normal;
+  font-weight: 700;
+  line-height: 18px;
+  text-align: center;
+}
+
+.advanced-caret {
+  display: inline-block;
+  transition: transform 0.15s;
+  font-size: 12px;
+}
+
+.advanced-caret.open {
+  transform: rotate(180deg);
+}
+
+.advanced-filter-panel {
+  margin-top: 12px;
+  padding-top: 14px;
+  border-top: 1px dashed #e5eaf1;
+}
+
+@media (max-width: 960px) {
+  .quick-filter-grid {
+    grid-template-columns: 1fr;
+  }
+}
+
 .filter-chip-row {
   display: flex;
   flex-wrap: wrap;