.banner {
  overflow: hidden;
  position: relative;
  min-width: 1280px;
  max-width: 1920px;
  min-height: 512px;
  max-height: 768px;
}

.banner img {
  width: 100%;
  height: 100%;
  vertical-align: top;
  object-fit: cover;
}

.banner .content {
  width: clamp(384px, 30vw, 576px);
  height: clamp(256px, 20vw, 384px);
  position: absolute;
  left: 10%;
  top: 25%;
  text-align: left;
  display: flex;
  flex-direction: column;
  color: white;
  border-top: 3px solid #E81139;
  background: #003473CC;
  padding: clamp(51px, 4vw, 77px);
}

.banner .content .title {
  font-weight: bold;
  margin-bottom: 10px;
}

.banner .content .detail p {
  line-height: clamp(20px, 1.6vw, 30px)
}

.breadcrumbs {
  width: 100%;
  padding: clamp(13px, 1vw, 18px);
  background-color: #F1F3F6;
  display: flex;
  align-items: center;
}

.breadcrumbs .w1200 ul li {
  font-size: clamp(12px, 0.8vw, 16px);
  color: #9D9FAC;
  margin-right: 10px;
}

.breadcrumbs .w1200 ul li.active {
  color: #232323;
}

.breadcrumbs .w1200 ul li img {
  width: clamp(13px, 1vw, 18px);
  margin-right: 5px;
}

.main-content {
  margin: 40px auto;
  min-width: 1280px;
  width: 90%;
}

.main-content .tabs {
  margin-bottom: clamp(25px, 2vw, 38px);
}

.main-content .tabs div {
  background-color: #F1F5FB;
  color: #232323;
  font-size: clamp(14px, 1.2vw, 20px);
  padding: clamp(13px, 1vw, 19px) clamp(25px, 2vw, 38px);
  margin: 0 10px;
  cursor: pointer;
}

.main-content .tabs div.active {
  color: white;
  background-color: #003894;
  border-top: 2px solid #F00A3D;
}

.main-content>.flex-between-start {
  margin-bottom: clamp(51px, 4vw, 77px);
  padding-bottom: clamp(51px, 4vw, 77px);
}

.main-content .second-part .pic {
  margin-top: clamp(-192px, -15vw, -288px);
}

.main-content .pic img {
  width: 100%;
}

.main-content .head {
  margin-bottom: clamp(24px, 2.2vw, 34px);
}

.main-content .title-icon {
  width: clamp(24px, 2.2vw, 34px);
  margin-right: clamp(14px, 1.2vw, 20px);
}

.main-content .title {
  color: #232323;
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: bold;
}

.main-content .content {
  color: #6B6B6B;
  font-size: clamp(14px, 1.2vw, 20px);
  margin-bottom: clamp(24px, 2.2vw, 34px);
  line-height: clamp(24px, 2.2vw, 34px);
}

.main-content .border-bottom {
  border-bottom: 0px solid #DCDCDC;
}

.main-content .contact {
  width: clamp(1280px, 100vw, 1920px);
  height: clamp(358px, 28vw, 537px);
  position: relative;
}

.contact {
  width: clamp(1280px, 100vw, 1920px);
  height: clamp(358px, 28vw, 537px);
  position: relative;
}

.contact img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact .content {
  position: absolute;
  left: clamp(128px, 10vw, 192px);
  top: clamp(128px, 10vw, 192px);
  text-align: left;
  display: flex;
  flex-direction: column;
  color: white;
}

.contact .content .title {
  font-weight: bold;
  margin-bottom: clamp(13px, 1vw, 19px);
  font-size: clamp(24px, 2.2vw, 34px);
}

.contact .content .phone p {
  color: white;
  margin-bottom: clamp(25px, 2vw, 38px);
  font-size: clamp(14px, 1.2vw, 18px);
}

.contact .content .contact-link a {
  padding: clamp(8px, 0.6vw, 12px) clamp(25px, 2vw, 38px);
  color: white;
  border: 1px solid white;
  border-radius: 50vw;
  font-size: clamp(14px, 1.2vw, 18px);
}

.container {
            max-width: 100vw;
            margin: 0 auto;
            padding: 20px;
            background: #ffffff;
        }

        h1 {
            text-align: center;
            margin-bottom: 40px;
            color: #2c3e50;
            font-size: 2.5rem;
        }

        h2 {
            color: #3498db;
            margin-bottom: 15px;
            border-bottom: 2px solid #3498db;
            padding-bottom: 8px;
        }

        .method {
            background: white;
            border-radius: 10px;
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .example {
            margin: 20px 0;
            padding: 15px;
            border-radius: 5px;
        }

        /* 方法1: Flexbox */
        .flex-container {
            display: flex;
            gap: 20px;
            margin: 20px 0;
        }

        .flex-item {
            flex: 1;
            background: #ffffff;
            text-align: left;
            font-size: 78px;
            border-radius: 8px;
            font-weight: bold;
        }

        /* 方法2: Grid */
        .grid-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 20px 0;
        }

        .grid-item {
            background: #9b59b6;
            color: white;
            padding: 30px;
            text-align: center;
            border-radius: 8px;
        }

        /* 方法3: Float (传统方法) */
        .float-container {
            margin: 20px 0;
            overflow: hidden; /* 清除浮动 */
        }

        .float-item {
            width: calc(33.333% - 14px);
            float: left;
            margin-right: 20px;
            background: #2ecc71;
            color: white;
            padding: 30px;
            text-align: center;
            border-radius: 8px;
        }

        .float-item:last-child {
            margin-right: 0;
        }

        /* 方法4: Inline-block */
        .inline-container {
            font-size: 0; /* 移除内联块元素之间的空白 */
            margin: 20px 0;
        }

        .inline-item {
            display: inline-block;
            width: calc(33.333% - 14px);
            margin-right: 20px;
            background: #e74c3c;
            color: white;
            padding: 30px;
            text-align: center;
            border-radius: 8px;
            font-size: 16px;
            vertical-align: top;
        }

        .inline-item:last-child {
            margin-right: 0;
        }

        .code {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 15px;
            border-radius: 5px;
            overflow-x: auto;
            margin: 15px 0;
            font-family: 'Courier New', monospace;
        }

        .note {
            background: #fff3cd;
            border-left: 4px solid #ffc107;
            padding: 12px 15px;
            margin: 15px 0;
            border-radius: 5px;
        }

        @media (max-width: 768px) {
            .flex-container {
                flex-direction: column;
            }

            .grid-container {
                grid-template-columns: 1fr;
            }

            .float-item, .inline-item {
                width: 100%;
                margin-right: 0;
                margin-bottom: 20px;
            }

            .float-item:last-child, .inline-item:last-child {
                margin-bottom: 0;
            }
        }