/* =========================================================
   阿尔泰科技 · common.css
   主色:   #005BAC (科技蓝 - 按钮/Tab下划线/统计数字/标志)
   红色:   #E53935 / #C52122 (少量强调 - 副标题/印章/热线)
   深蓝:   #114672 / #0f2962 (Banner叠层/企业文化背景)
   浅底:   #F1F4F9 / #F2F5FA (内容区浅灰底)
   深灰:   #1D1D1D (Footer背景)
   前缀: art-
   ========================================================= */

/* ===== 1. 全局 Reset ===== */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; -ms-box-sizing: border-box; -o-box-sizing: border-box;}
body { font: 16px/1.5 '\5FAE\8F6F\96C5\9ED1', 'Microsoft Yahei', 'Arial', 'Helvetica', 'sans-serif'; color: #1a1a1a; background-color: #fff;}
table, th, td, tr { border-collapse: collapse; border-spacing: 0; font-size: 16px;}
ol, ul { list-style: none;}
li { list-style-type: none;}
img { max-width: 100%; border: 0;}
.clear::after { content: ''; display: block; height: 0; overflow: hidden; clear: both;}
a { color: #1e3a8a; text-decoration: none;}
a:visited { color: #1e3a8a; text-decoration: none;}
a:hover { color: #E53935; text-decoration: none;}
a:active { color: #E53935; text-decoration: none;}
.fl { float: left;}
.fr { float: right;}

/* ===== 2. 字体 ===== */
@font-face { font-family: "AlimamaShuHeiTi-Bold"; src: url('../fonts/AlimamaShuHeiTi-Bold.ttf'); font-weight: bold;}

/* ===== 3. 公共过渡声明 ===== */
a, button, input, textarea, select,
.art-nav_list>ul>li>a, .art-header-search form,
.art-tab_list>li, .art-footer_btn a {
  transition: all 0.4s ease;
  -webkit-transition: all 0.4s ease;
  -moz-transition: all 0.4s ease;
  -ms-transition: all 0.4s ease;
  -o-transition: all 0.4s ease;
}

/* ===== 4. 公共工具类 ===== */
.icon { display: block; width: 100%; height: 100%;}
.cover { position: absolute; width: 100%; height: 100%; -webkit-object-fit: cover; object-fit: cover; top: 0; left: 0;}
.cover1 { position: absolute; max-width: 100%; max-height: 100%; margin: auto; top: 0; left: 0; bottom: 0; right: 0;}
.cover2 { position: absolute; max-width: 90%; max-height: 90%; margin: auto; top: 0; left: 0; bottom: 0; right: 0;}

/* ===== 5. 滚动条 ===== */
::-webkit-scrollbar { width: 6px; height: 0;}
::-webkit-scrollbar-track { background: #f5f5f5;}
::-webkit-scrollbar-thumb { background: #E53935; border-radius: 3px;}
::-webkit-scrollbar-thumb:hover { background: #C62828;}
::-webkit-scrollbar-button { display: none;}

/* ===== 6. 容器宽度 ===== */
/* 1920 视口下内容宽 1600（左右各 160 留白），随视口等比收边 */
.container-width { width: 1600px; max-width: calc(100% - 80px); margin: 0 auto; padding: 0;}
@media (max-width:1680px) { .container-width { max-width: calc(100% - 64px);} }
@media (max-width:1440px) { .container-width { max-width: calc(100% - 56px);} }
@media (max-width:1280px) { .container-width { max-width: calc(100% - 40px);} }
@media (max-width:767px)  { .container-width { max-width: calc(100% - 32px);} }

/* ===== 7. 顶部间距 ===== */
/* Banner 在页面顶部，header 透明叠加，无需为 header 留位 */
.art-container { padding-top: 0;}
/* 无 Banner 的内页：给固定 header 留位 */
.art-container.no-banner { padding-top: 86px;}
@media (max-width:1680px) { .art-container.no-banner { padding-top: 78px;} }
@media (max-width:1280px) { .art-container.no-banner { padding-top: 70px;} }
@media (max-width:920px)  { .art-container.no-banner { padding-top: 60px;} }

/* =========================================================
   HEADER (默认白底；.art-header-trans 为叠加在 Banner 上的透明头)
   ========================================================= */
.art-header { width: 100%; background-color: #fff; position: fixed; left: 0; top: 0; z-index: 9999; transition: background-color .3s ease, box-shadow .3s ease; -webkit-transition: background-color .3s ease, box-shadow .3s ease;}
.art-header.fxd { box-shadow: 0 2px 12px rgba(0,0,0,.06);}
/* 头部容器：满宽 + 左右 50 内边距（设计稿 Logo 左边缘 x=50） */
.art-header-container { width: 100%; padding: 0 50px; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; height: 100px;}
@media (max-width:1680px) { .art-header-container { height: 92px; padding: 0 40px;} }
@media (max-width:1440px) { .art-header-container { height: 84px; padding: 0 32px;} }
@media (max-width:1280px) { .art-header-container { height: 76px; padding: 0 24px;} }
@media (max-width:920px)  { .art-header-container { height: 64px; padding: 0 16px;} }

/* logo */
.art-header-logo { flex-shrink: 0; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center;}
.art-header-logo a { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; color: #1a1a1a;}
.art-header-logo img { display: block; width: 242px; height: 54px;}
@media (max-width:1440px) { .art-header-logo img { width: 206px; height: 46px;} }
@media (max-width:920px)  { .art-header-logo img { width: 178px; height: 40px;} }

/* nav */
.art-header-nav { -webkit-flex: 1; flex: 1;}
.art-nav_list>ul { display: -webkit-flex; display: flex; -webkit-justify-content: flex-end; justify-content: flex-end; gap: 0; padding-right: 74px;}
.art-nav_list>ul>li { position: relative; padding: 0 31px;}
.art-nav_list>ul>li>a { display: block; padding: 32px 0 34px; font-size: 18px; color: #333; font-weight: 400; letter-spacing: 0; position: relative; white-space: nowrap;}
.art-nav_list>ul>li>a:hover { color: #005BAC;}
.art-nav_list>ul>li.active>a { color: #1a1a1a; font-weight: bold;}
.art-nav_list>ul>li.active>a::after { content: ''; display: block; width: 46px; height: 2px; background-color: #005BAC; position: absolute; bottom: 24px; left: 50%; margin-left: -23px;}
/* 导航下拉箭头 */
.art-nav_list>ul>li>i { display: none;}
.art-nav_list>ul>li>i svg path { fill: #999;}
@media (max-width:1680px) { .art-nav_list>ul>li { padding: 0 11px;} .art-nav_list>ul>li>a { font-size: 14px;} }
@media (max-width:1440px) { .art-nav_list>ul>li { padding: 0 8px;} .art-nav_list>ul>li>a { font-size: 13.5px;} }
@media (max-width:1280px) { .art-nav_list>ul>li { padding: 0 6px;} .art-nav_list>ul>li>a { font-size: 13px; letter-spacing: 0;} }

/* 汉堡按钮 (独立元素) */
.art-nav_btn { display: none; width: 36px; height: 36px; cursor: pointer; flex-shrink: 0; -webkit-flex-shrink: 0; -webkit-flex-direction: column; flex-direction: column; -webkit-justify-content: center; justify-content: center; -webkit-align-items: center; align-items: center;}
.art-nav_btn i { display: block; width: 22px; height: 2px; background-color: #1a1a1a; margin: 3px auto; border-radius: 2px;}
.art-nav_mask { display: none;}

/* 右侧 */
.art-header-right { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; gap: 17px; flex-shrink: 0;}
/* 竖向分隔线 */
.art-header-divider { width: 1px; height: 40px; background-color: #E2E6EC; flex-shrink: 0;}
/* 客服图标（无边框） */
.art-header-tel { width: 26px; height: 23px; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: center; justify-content: center; color: #333; flex-shrink: 0;}
.art-header-tel img { display: block; width: 26px; height: 23px;}
.art-header-tel:hover { opacity: .72;}
/* 联系我们按钮（蓝色胶囊 + 箭头） */
.art-header-consult { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: center; justify-content: center; gap: 20px; height: 49px; padding: 0 29px 0 32px; margin-left: 16px; background-color: #0A5AB4; color: #fff; font-size: 17px; border-radius: 25px; white-space: nowrap; letter-spacing: 1px;}
.art-header-consult:visited { color: #fff;}
.art-header-consult:hover { background-color: #08518F; color: #fff;}
.art-header-consult svg { width: 10px; height: 10px; fill: #fff;}
@media (max-width:1440px) { .art-header-consult { height: 38px; padding: 0 20px; font-size: 14px; gap: 8px;} .art-header-tel { width: 23px; height: 21px;} .art-header-tel img { width: 23px; height: 21px;} .art-header-right { gap: 16px;} .art-header-divider { height: 32px;} }

/* 搜索 */
.art-header-search { position: relative; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center;}
.art-header-search .search-open, .art-header-search .search-close { width: 22px; height: 22px; cursor: pointer; padding: 0;}
.art-header-search .search-open svg, .art-header-search .search-close svg { width: 22px; height: 22px;}
.art-header-search .search-open svg path, .art-header-search .search-close svg path { fill: #666;}
.art-header-search form { display: none; -webkit-align-items: center; align-items: center; background-color: #f5f7fa; border-radius: 20px; padding: 4px 12px; margin-right: 8px;}
.art-header-search form input { border: 0; background: transparent; outline: none; width: 180px; padding: 6px 4px; font-size: 14px; color: #333;}
.art-header-search form button { border: 0; background: none; cursor: pointer; color: #005BAC; font-size: 13px; padding-left: 8px;}
.art-header-search .search-close { display: none;}
body#search-show .art-header-search form { display: -webkit-flex; display: flex;}
body#search-show .art-header-search .search-open { display: none;}
body#search-show .art-header-search .search-close { display: block;}

/* ===== 透明 Header（叠加在深色 Banner 上） ===== */
.art-header-trans { background-color: transparent;}
.art-header-trans .art-header-logo a { color: #fff;}
.art-header-trans .art-nav_list>ul>li>a { color: #fff;}
.art-header-trans .art-nav_list>ul>li>a:hover { color: #fff; opacity: .72;}
.art-header-trans .art-nav_list>ul>li.active>a { color: #fff; font-weight: 400;}
.art-header-trans .art-nav_list>ul>li.active>a::after { display: none;}
/* 透明头当前项白下划线（设计稿：首页下方 36x2 白色横线，贴 header 底边） */
.art-header-trans .art-nav_list>ul>li.art-nav-cur>a::after { content: ''; display: block; position: absolute; left: 1px; bottom: -3px; width: 100%; height: 2px; background-color: #fff;}
.art-header-trans .art-header-search .search-open svg path,
.art-header-trans .art-header-search .search-close svg path { fill: #fff;}
.art-header-trans .art-header-divider { background-color: rgba(255,255,255,.35);}
.art-header-trans .art-header-tel { border: 0; color: #fff;}
.art-header-trans .art-header-tel:hover { color: #fff; opacity: .75;}
/* 滚动后变白底、深色字 */
.art-header-trans.fxd { background-color: #fff;}
.art-header-trans.fxd .art-header-logo a { color: #1a1a1a;}
.art-header-trans.fxd .art-nav_list>ul>li>a { color: #333;}
.art-header-trans.fxd .art-nav_list>ul>li.active>a { color: #1a1a1a;}
.art-header-trans.fxd .art-nav_list>ul>li.active>a::after { background-color: #005BAC;}
.art-header-trans.fxd .art-header-search .search-open svg path,
.art-header-trans.fxd .art-header-search .search-close svg path { fill: #666;}
.art-header-trans.fxd .art-header-divider { background-color: #E2E6EC;}
.art-header-trans.fxd .art-header-tel { color: #333;}

/* 汉堡按钮 + 导航响应式 */
@media (max-width:920px) {
  .art-nav_btn { display: -webkit-flex; display: flex;}
  .art-header-nav { display: none; position: absolute; left: 0; top: 100%; width: 100%; background-color: #fff; border-top: 1px solid #e5e7eb; box-shadow: 0 4px 16px rgba(0,0,0,.08);}
  .art-header-nav.open { display: block;}
  .art-nav_list>ul { -webkit-flex-direction: column; flex-direction: column; gap: 0;}
  .art-nav_list>ul>li { padding: 0;}
  .art-nav_list>ul>li>a { padding: 16px 24px; font-size: 15px; border-bottom: 1px solid #f5f5f5; color: #333;}
  .art-nav_list>ul>li.active>a::after { display: none;}
  .art-nav_list>ul>li.active>a { color: #005BAC; padding-left: 40px;}
  .art-nav_mask { display: block; height: 200px; background-color: rgba(0,0,0,.3);}
  .art-header-right { display: none;}
  /* 透明头在移动端：汉堡为白色 */
  .art-header-trans .art-nav_btn i { background-color: #fff;}
  /* 移动端展开导航时强制白底深字 */
  .art-header-trans.open-nav { background-color: #fff;}
  .art-header-trans.open-nav .art-header-logo a { color: #1a1a1a;}
  .art-header-trans.open-nav .art-nav_btn i { background-color: #1a1a1a;}
}

/* =========================================================
   INNER BANNER (内页 Banner) —— 设计稿: 700 高, 建筑图 + 蓝色叠层
   ========================================================= */
.art-inner-banner { position: relative; width: 100%; height: 700px; overflow: hidden; background-color: #0e2b4d;}
.art-inner-banner_img { position: absolute; width: 100%; height: 100%; top: 0; left: 0; -webkit-object-fit: cover; object-fit: cover;}
/* Banner 图已是设计稿原始色调，无需再叠加深色遮罩 */
.art-inner-banner_overlay { position: absolute; width: 100%; height: 100%; top: 0; left: 0; z-index: 1; background: none;}
.art-inner-banner-container { position: relative; z-index: 2; height: 100%; display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; -webkit-justify-content: center; justify-content: center; color: #fff; padding-top: 52px;}
.art-inner-banner_title { font-size: 56px; font-weight: bold; font-family: 'AlimamaShuHeiTi-Bold', 'Microsoft Yahei', sans-serif; letter-spacing: 2px; line-height: 1.1;}
/* 标题下方的双圆点装饰（蓝 + 灰，重叠） */
.art-inner-banner_dots { display: -webkit-flex; display: flex; margin-top: 32px;}
.art-inner-banner_dots i { display: block; width: 14px; height: 14px; border-radius: 50%; background-color: #2E6BD0;}
.art-inner-banner_dots i + i { margin-left: -5px; background-color: #A9AFB6;}
@media (max-width:1680px) { .art-inner-banner { height: 580px;} .art-inner-banner_title { font-size: 44px;} }
@media (max-width:1440px) { .art-inner-banner { height: 520px;} .art-inner-banner_title { font-size: 40px;} }
@media (max-width:1280px) { .art-inner-banner { height: 440px;} .art-inner-banner_title { font-size: 36px;} }
@media (max-width:1080px) { .art-inner-banner { height: 360px;} .art-inner-banner_title { font-size: 32px;} }
@media (max-width:767px)  { .art-inner-banner { height: 240px;} .art-inner-banner_title { font-size: 26px; letter-spacing: 1px;} .art-inner-banner_dots { margin-top: 20px;} .art-inner-banner_dots i { width: 10px; height: 10px;} }

/* =========================================================
   TAB 导航（浅灰底 + 蓝色下划线）
   ========================================================= */
.art-tab { background-color: #F1F4F9; border-bottom: 1px solid #E3E9F0;}
/* 设计稿：5 项居中排列，每项宽 291，字 22px，激活项文字深藏青 + 等宽蓝下划线（贴底） */
.art-tab_list { display: -webkit-flex; display: flex; -webkit-justify-content: center; justify-content: center;}
.art-tab_list>li { -webkit-flex: none; flex: none; width: 291px; height: 90px; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: center; justify-content: center; font-size: 22px; color: #9AA7B4; cursor: pointer; position: relative; font-weight: 400;}
.art-tab_list>li:hover { color: #005BAC;}
.art-tab_list>li.active { color: #002F49; font-weight: bold;}
.art-tab_list>li.active::after { content: ''; display: block; width: 94px; height: 3px; background-color: #005BAC; position: absolute; bottom: 0; left: 50%; margin-left: -47px;}
@media (max-width:1280px) { .art-tab_list>li { width: 20%; height: 78px; font-size: 17px;} }
@media (max-width:1080px) { .art-tab_list { -webkit-flex-wrap: wrap; flex-wrap: wrap;} .art-tab_list>li { width: 33.33%; height: 64px; font-size: 15px;} }
@media (max-width:767px)  { .art-tab_list>li { height: 56px; font-size: 14px;} .art-tab_list>li.active::after { width: 40px; margin-left: -20px; height: 2px;} }

/* =========================================================
   FOOTER (近黑底 #1D1D1D)  设计稿: 3248-3954 (706 高)
   ========================================================= */
.art-footer { background-color: #1D1D1D; color: #fff; padding: 88px 0 0;}
/* 顶部 Logo + 右侧两个按钮 */
.art-footer_top { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: space-between; justify-content: space-between; padding-bottom: 112px;}
.art-footer_logo a { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; color: #fff;}
.art-footer_logo svg { display: block; width: 250px; height: 50px;}
.art-footer_logo .logo_ring { fill: none; stroke: currentColor; stroke-width: 4;}
.art-footer_logo .logo_swoosh { fill: none; stroke: #C52122; stroke-width: 5; stroke-linecap: round;}
.art-footer_logo .logo_txt { fill: currentColor; font-family: Arial, Helvetica, sans-serif; font-weight: bold; font-style: italic;}
.art-footer_btn { display: -webkit-flex; display: flex; -webkit-flex-direction: row; flex-direction: row; gap: 13px;}
.art-footer_btn a { display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: center; justify-content: center; gap: 8px; width: 165px; height: 44px; border-radius: 22px; font-size: 14px; color: #fff; white-space: nowrap;}
.art-footer_btn a svg { width: 16px; height: 16px; fill: #fff; flex-shrink: 0;}
.art-footer_btn .btn-blue { background-color: #0056A6;}
.art-footer_btn .btn-blue:hover { background-color: #004a8f; color: #fff;}
.art-footer_btn .btn-red { background-color: #C52122;}
.art-footer_btn .btn-red:hover { background-color: #a81a1b; color: #fff;}
/* 六列导航（等宽 266，无间距） */
.art-footer-container { display: -webkit-flex; display: flex; padding-bottom: 114px;}
.art-footer_center { -webkit-flex: 1; flex: 1; display: -webkit-flex; display: flex; gap: 0;}
.art-footer_col { -webkit-flex: 1; flex: 1; min-width: 0; padding-right: 24px;}
.art-footer_col:nth-child(1) { -webkit-flex: 0 0 16.1%; flex: 0 0 16.1%;}
.art-footer_col:nth-child(2) { -webkit-flex: 0 0 16.7%; flex: 0 0 16.7%;}
.art-footer_col:nth-child(3) { -webkit-flex: 0 0 15.6%; flex: 0 0 15.6%;}
.art-footer_col:nth-child(4) { -webkit-flex: 0 0 16.6%; flex: 0 0 16.6%;}
.art-footer_col:nth-child(5) { -webkit-flex: 0 0 16.6%; flex: 0 0 16.6%;}
.art-footer_col:nth-child(6) { -webkit-flex: 1; flex: 1; padding-right: 0;}
.art-footer_col h4 { font-size: 24px; font-weight: bold; line-height: 1; margin-bottom: 34px; color: #fff; letter-spacing: .5px;}
.art-footer_col ul li { margin-bottom: 0;}
.art-footer_col ul li a { font-size: 16px; color: rgba(255,255,255,.66); display: block; line-height: 32px;}
.art-footer_col ul li a:hover { color: #fff;}
/* 联系列（设计稿行高 36，电话 21px 粗体白） */
.art-footer_contact, .art-footer_contact li { font-size: 16px; color: rgba(255,255,255,.66); line-height: 36px; word-break: break-all;}
.art-footer_contact .tel { font-size: 21px; font-weight: bold; color: #fff;}
/* 版权条 */
.art-footer_bottom { padding: 0 0 38px; display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: space-between; justify-content: space-between; font-size: 16px; color: rgba(255,255,255,.66);}
.art-footer_bottom a { color: rgba(255,255,255,.66);}
.art-footer_bottom a:hover { color: #fff;}
.art-footer_bottom span { margin: 0 6px; opacity: .5;}
@media (max-width:1680px) { .art-footer { padding: 70px 0 0;} .art-footer_top { padding-bottom: 90px;} .art-footer-container { padding-bottom: 100px;} .art-footer_logo svg { width: 230px; height: 46px;} .art-footer_col h4 { font-size: 21px;} .art-footer_col ul li a, .art-footer_contact li { font-size: 14px;} }
@media (max-width:1440px) { .art-footer { padding: 58px 0 0;} .art-footer_top { padding-bottom: 74px;} .art-footer-container { padding-bottom: 82px;} .art-footer_col h4 { font-size: 19px; margin-bottom: 20px;} .art-footer_btn a { width: 150px; height: 40px; font-size: 13px;} .art-footer_logo svg { width: 208px; height: 42px;} }
@media (max-width:1280px) { .art-footer { padding: 48px 0 0;} .art-footer_top { padding-bottom: 60px;} .art-footer-container { padding-bottom: 66px;} .art-footer_col h4 { font-size: 17px; margin-bottom: 16px;} .art-footer_col ul li a, .art-footer_contact li { font-size: 13px; line-height: 30px;} .art-footer_btn a { width: 138px; height: 36px; font-size: 12px;} }
@media (max-width:1080px) {
  .art-footer_center { -webkit-flex-wrap: wrap; flex-wrap: wrap;}
  .art-footer_col { width: 33.33%; -webkit-flex: none; flex: none; padding-right: 12px; margin-bottom: 12px;}
}
@media (max-width:767px) {
  .art-footer { padding: 40px 0 0;}
  .art-footer_top { -webkit-flex-direction: column; flex-direction: column; -webkit-align-items: flex-start; align-items: flex-start; gap: 22px; padding-bottom: 30px;}
  .art-footer_logo svg { width: 200px; height: 40px;}
  .art-footer_btn a { width: 150px; height: 38px;}
  .art-footer_col { width: 50%;}
  .art-footer-container { padding-bottom: 20px;}
  .art-footer_bottom { -webkit-flex-direction: column; flex-direction: column; gap: 8px; text-align: center; padding: 16px 0 24px;}
  .art-footer_bottom p { line-height: 1.8;}
}

/* =========================================================
   侧边功能栏 / 返回顶部
   ========================================================= */
.art-view { position: fixed; right: 24px; bottom: 60px; z-index: 9998; display: -webkit-flex; display: flex; -webkit-flex-direction: column; flex-direction: column; gap: 10px;}
.art-view_item { width: 46px; height: 46px; background-color: #fff; border-radius: 50%; box-shadow: 0 2px 12px rgba(0,0,0,.12); display: -webkit-flex; display: flex; -webkit-align-items: center; align-items: center; -webkit-justify-content: center; justify-content: center; cursor: pointer; border: 1px solid #f0f0f0; transition: all 0.3s; -webkit-transition: all 0.3s;}
.art-view_item:hover { background-color: #E53935; transform: translateY(-2px); -webkit-transform: translateY(-2px); border-color: #E53935;}
.art-view_item:hover svg path { fill: #fff;}
.art-view_item svg { width: 20px; height: 20px;}
.art-view_item svg path { fill: #666; transition: fill 0.3s; -webkit-transition: fill 0.3s;}
.art-view_top { display: none;}
.art-view_top.show { display: -webkit-flex; display: flex;}
@media (max-width:767px) { .art-view { right: 12px; bottom: 40px; gap: 8px;} .art-view_item { width: 40px; height: 40px;} }

/* =========================================================
   Swiper 覆盖
   ========================================================= */
.swiper-pagination-bullet { width: 10px; height: 3px; border-radius: 2px; background-color: #ddd; opacity: 1; transition: all 0.3s; -webkit-transition: all 0.3s;}
.swiper-pagination-bullet-active { background-color: #E53935; width: 24px;}