修改轮播样式

css/index.css

@@ -1,30 +1,89 @@
 /* banner */
 .banner-cont {
+  position: relative;
   width: 100%;
+  overflow: hidden;
 }
 
 .banner-cont .swiper-slide {
+  position: relative;
   height: 500px;
   width: 100%;
-  background: linear-gradient(0, #f7f9fa, #f9fafb);
+  background: #0b1020;
+  overflow: hidden;
+}
+
+/* 背景图铺满，并增加左侧渐变遮罩，保证文字可读性 */
+.banner-cont .swiper-slide::before {
+  content: "";
+  position: absolute;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  background: linear-gradient(
+    90deg,
+    rgba(9, 10, 15, 0.9) 0%,
+    rgba(9, 10, 15, 0.55) 40%,
+    rgba(9, 10, 15, 0) 72%
+  );
+  z-index: 1;
 }
 
 .banner-cont .swiper-slide .img {
-  /* position: absolute; */
-  z-index: -1;
-  max-height: 100%;
-  max-width: 100%;
+  position: absolute;
+  top: 0;
+  left: 0;
   width: 100%;
-  /* object-fit: fill; */
+  height: 100%;
+  object-fit: cover;
+  max-width: 100%;
+  max-height: 100%;
+  display: block;
+  z-index: 0;
 }
 
+/* 固定文案区域位置，避免不同轮播内容导致上下抖动 */
+.banner-cont .banner-text {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  pointer-events: none;
+}
+
+.banner-cont .banner-text .section-content {
+  position: absolute;
+  top: 120px;
+  left: 50%;
+  transform: translateX(-50%);
+  max-width: 1440px;
+  padding-top: 0;
+  padding-bottom: 0;
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  z-index: 2;
+}
+
+.banner-cont .banner-text h1 {
+  font-size: 40px;
+  line-height: 1.2;
+  color: #ffffff;
+}
 
 .banner-cont .banner-desc {
   font-size: 16px;
-  margin-top: 30px;
-  margin-bottom: 80px;
+  margin-top: 16px;
+  margin-bottom: 32px;
   max-width: 550px;
+  color: rgba(255, 255, 255, 0.85);
+}
 
+/* 按钮保持可点击 */
+.banner-cont .banner-text .btn {
+  pointer-events: auto;
 }
 
 .banner-cont .swiper-pagination-bullet {
@@ -39,26 +98,9 @@
   background: rgba(255, 103, 57, 1);
 }
 
-.banner-cont {
-  position: relative;
-}
-
-.banner-cont .banner-text {
-  position: absolute;
-  left: 0;
-  top: 0;
-  width: 100%;
-  height: 100%;
-  display: flex;
-  align-items: center;
-}
-
-.banner-cont .banner-text .section-content {
-  z-index: 1;
-}
-
-.banner-cont .banner-text .btn {
-  pointer-events: auto;
+/* 调整分页器位置，避免与文案重叠 */
+.banner-cont .swiper-pagination {
+  bottom: 40px !important;
 }
 
 .banner .banner-s {