diff --git a/css/index.css b/css/index.css
index e82ef95..3df2efd 100644
--- a/css/index.css
+++ b/css/index.css
@@ -2,75 +2,46 @@
 .banner-cont {
   position: relative;
   width: 100%;
-  overflow: hidden;
 }
 
 .banner-cont .swiper-slide {
-  position: relative;
   height: 500px;
   width: 100%;
-  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;
+  background: linear-gradient(0, #f7f9fa, #f9fafb);
 }
 
 .banner-cont .swiper-slide .img {
-  position: absolute;
-  top: 0;
-  left: 0;
-  width: 100%;
-  height: 100%;
-  object-fit: cover;
-  max-width: 100%;
+  /* 保持图片占满宽度，避免拉伸过度 */
   max-height: 100%;
-  display: block;
-  z-index: 0;
+  max-width: 100%;
+  width: 100%;
 }
 
-/* 固定文案区域位置，避免不同轮播内容导致上下抖动 */
+/* 文案区域：固定在左侧，顶部留出一致间距，避免切换时轻微位移 */
 .banner-cont .banner-text {
   position: absolute;
   left: 0;
   top: 0;
   width: 100%;
   height: 100%;
+  display: flex;
+  align-items: flex-start;
   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-top: 120px;
   padding-bottom: 0;
   display: flex;
   flex-direction: column;
   align-items: flex-start;
-  z-index: 2;
+  z-index: 1;
 }
 
 .banner-cont .banner-text h1 {
   font-size: 40px;
   line-height: 1.2;
-  color: #ffffff;
+  color: #111827;
 }
 
 .banner-cont .banner-desc {
@@ -78,7 +49,7 @@
   margin-top: 16px;
   margin-bottom: 32px;
   max-width: 550px;
-  color: rgba(255, 255, 255, 0.85);
+  color: rgba(0, 0, 0, 0.65);
 }
 
 /* 按钮保持可点击 */
@@ -89,20 +60,15 @@
 .banner-cont .swiper-pagination-bullet {
   width: 36px;
   height: 4px;
-  background: #D7DCE4;
-  opacity: 1;
-  border-radius: 3px;
-}
+  background: #D7DCE4;
+  opacity: 1;
+  border-radius: 3px;
+}
 
 .banner-cont .swiper-pagination-bullet-active {
   background: rgba(255, 103, 57, 1);
 }
 
-/* 调整分页器位置，避免与文案重叠 */
-.banner-cont .swiper-pagination {
-  bottom: 40px !important;
-}
-
 .banner .banner-s {
   box-shadow: 0px 0px 16px rgba(52, 52, 52, 0.16);
   border-radius: 3px;