/* 基础重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei";
}

html,
body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    color: #333;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* 布局通用类 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col {
    padding: 0 15px;
    flex: 1;
}

/* 弹性布局工具类 */
.flex-row {
    display: flex;
    flex-direction: row;
}

.flex-col {
    display: flex;
    flex-direction: column;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.align-center {
    align-items: center;
}

.align-start {
    align-items: flex-start;
}

.align-end {
    align-items: flex-end;
}

/* 间距工具类 */
.mt-1 {
    margin-top: 0.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mb-4 {
    margin-bottom: 2rem;
}

.mb-5 {
    margin-bottom: 3rem;
}

.py-1 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.py-2 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.py-3 {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.py-4 {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.py-5 {
    padding-top: 3rem;
    padding-bottom: 3rem;
}

.px-1 {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

.px-2 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.px-3 {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.px-4 {
    padding-left: 2rem;
    padding-right: 2rem;
}

.px-5 {
    padding-left: 3rem;
    padding-right: 3rem;
}

/* 颜色变量 */
:root {
    --primary-color: #2353ed;
    --secondary-color: #91a9f6;
    --text-color: #333;
    --text-color-light: #999;
    --bg-color: #f4f6fe;
    --white: #fff;
    --dark-bg: #424242;
    --border-color: #e2e8ff;
    --shadow-color: rgba(35, 83, 237, 0.2);
}

/* 按钮样式 */
button {
    display: inline-block;
    text-align: center;
    text-decoration: none;
    font-size: 16px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    outline: none;
    padding:0;
    margin:0;
}
/* 标题样式 */
.section-title {
    font-size: 40px;
    font-weight: 500;
    color: var(--text-color);
    text-align: center;
    margin-bottom: 1rem;
    margin-top: 80px;
}

.section-line {
    display: block;
    width: 48px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
    margin: 20px auto 2rem;
}

/* 卡片样式 */
.card {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 0 10px 2px var(--shadow-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* 响应式断点 */
@media screen and (max-width: 1200px) {
    .container {
        max-width: 992px;
    }
}

@media screen and (max-width: 992px) {
    .container {
        max-width: 768px;
    }

    .section-title {
        font-size: 32px;
    }
}

@media screen and (max-width: 768px) {
    .container {
        max-width: 576px;
    }
    .col {
        width: 100%;
        flex: none;
    }

    .section-title {
        font-size: 28px;
    }
}

@media screen and (max-width: 576px) {
    .container {
        max-width: 100%;
    }
}
/* 滚动条整体样式 */
::-webkit-scrollbar {
    width: 6px;
    /* 垂直滚动条宽度 */
    height: 6px;
    /* 水平滚动条高度 */
}

/* 滚动条轨道 */
::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 6px;
}

/* 滚动条滑块（可拖动的部分） */
::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 6px;
}

/* 滑块悬停效果 */
::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 滚动条两端的按钮（可选） */
::-webkit-scrollbar-button {
    display: none;
}

/* 滚动条角落（横向和纵向交汇处） */
::-webkit-scrollbar-corner {
    background: #f1f1f1;
}
  .pc-only {
    display: block;
   }
  .pc-none {
    display: none;
  }
  .mobile-only {
    display: none;
   }
    .mobile-none {
    display: block;
   }
   @media (max-width: 768px) {
    .pc-only {
      display: none;
    }
    .pc-none {
      display: block;
    }
     .mobile-only {
    display: block;
    }
     .mobile-none {
    display: none;
   }
   }