/* ============================================
   欧穆云官网 - 主样式文件
   版本: 2.0
   最后更新: 2025
   ============================================ */

/* --------------------------------------------
   1. 全局基础样式
   -------------------------------------------- */
* {
  font-family: btfFont;
  font-weight: 400;
}

body {
  background-color: #fcfcfd;
}

a {
  transition: all 0.3s;
  text-decoration: none;
}

p {
  line-height: 2;
  font-size: 15px;
}

/* --------------------------------------------
   2. 通用工具类
   -------------------------------------------- */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.font-big {
  font-size: 40px;
}

.margin-top {
  margin-top: 110px;
}

.margin-lr {
  margin-left: 40px;
  margin-right: 40px;
}

.margin-lrb {
  margin-left: 50px;
  margin-right: 50px;
}

.padding {
  padding: 2em;
}

.radius {
  border-radius: 8px !important;
}

.text-underline {
  height: 10px !important;
  background-color: #8799ff !important;
  width: 50px !important;
  margin-top: 10px !important;
  margin-bottom: 20px !important;
}

/* --------------------------------------------
   3. 动画效果
   -------------------------------------------- */
@keyframes updown {
  0% {
    opacity: 0;
    transform: translateY(-20px);
  }
  75% {
    opacity: 0.7;
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------
   4. 品牌标题样式
   -------------------------------------------- */
.oumuyun {
  position: relative;
  background-image: -webkit-linear-gradient(left, #4490ff, #b16aff, #1478f5);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: updown 1s forwards;
  letter-spacing: 1px;
  font-weight: 900;
  margin-bottom: 7em;
  top: 5em;
}

/* --------------------------------------------
   5. 导航栏样式
   -------------------------------------------- */
.nav-fixed {
  width: 100vw !important;
  top: 0 !important;
  position: fixed !important;
  z-index: 929 !important;
  opacity: 0.85 !important;
}

.layui-nav .layui-this:after,
.layui-nav-bar {
  background-color: #8a99f0 !important;
}

.layui-this a {
  color: #8a99f0 !important;
}

/* --------------------------------------------
   6. Banner 视频背景
   -------------------------------------------- */
.banner-video {
  position: absolute;
  width: 100%;
  overflow: hidden;
  left: 0;
  top: 0;
  max-height: 750px;
}

.banner-video video {
  width: 100vw;
}

.bottom-cover {
  width: 100%;
  height: 50%;
  position: absolute;
  bottom: 0px;
  background-image: linear-gradient(
    rgba(255, 255, 255, 0) 0%,
    rgb(244 248 251 / 0.6) 50%,
    rgb(244 248 251) 100%
  );
}

#about {
  position: relative;
}

/* --------------------------------------------
   7. 表单样式
   -------------------------------------------- */
.layui-input:focus,
.layui-textarea:focus {
  border-color: #276dff !important;
  box-shadow: 0 0 0 0.3px rgb(31 93 255 / 100%) !important;
}

.layui-form-select dl dd.layui-this {
  color: #3ca5f3 !important;
}

.layui-form-onswitch {
  border-color: #fff !important;
  background-color: #00a1ff !important;
}

.layui-form-radio:hover > *,
.layui-form-radioed,
.layui-form-radioed > i {
  color: #5557fb !important;
}

.upload {
  color: #5486ff !important;
}

/* --------------------------------------------
   8. 引用块样式
   -------------------------------------------- */
.layui-elem-quote {
  font-size: 12.5px !important;
  border-left: 5px solid #6bc1ff !important;
}

/* --------------------------------------------
   9. 日期选择器样式
   -------------------------------------------- */
.layui-laydate .layui-this,
.layui-laydate .layui-this > div {
  background-color: #6bc1ff !important;
}

.layui-laydate-range {
  width: auto !important;
}

.layui-laydate-range .layui-laydate-main {
  display: block !important;
  max-width: 100% !important;
}

/* --------------------------------------------
   10. 页脚样式
   -------------------------------------------- */
.footer {
  background-color: #fbfbfb;
  font-size: 15px;
  color: rgba(0, 0, 0, 0.5);
  line-height: 2;
  border-top: #e5e5e5 1px solid;
  display: flex;
  flex-direction: column;
  align-items: center;
}

p > .beian {
  vertical-align: middle;
  margin-right: 2px;
}

.weixin {
  width: 125px;
  height: 105px;
}

/* --------------------------------------------
   11. 固定工具栏样式
   -------------------------------------------- */
.layui-fixbar li {
  background-color: #4ebafb !important;
}

.layui-fixbar li:hover {
  opacity: 0.65 !important;
}

/* --------------------------------------------
   12. 响应式设计 - 移动端适配
   -------------------------------------------- */

/* 平板和小屏设备 (max-width: 480px) */
@media screen and (max-width: 480px) {
  footer p {
    font-size: 13px;
  }

  .margin-top {
    font-size: 20px;
  }

  .footer {
    font-size: 14px;
  }

  .layui-colla-title {
    font-size: 12px !important;
  }

  .layui-colla-content {
    font-size: 12px !important;
  }

  .layui-colla-content p {
    font-size: 12px !important;
  }

  .layui-panel p {
    font-size: 12.65px !important;
  }
}

/* 小屏手机 (max-width: 449px) */
@media screen and (max-width: 449px) {
  footer p {
    font-size: 12px;
  }

  .footer {
    font-size: 13px;
  }

  .font-big {
    font-size: 27px !important;
  }

  .layui-card-header {
    font-size: 13.7px;
  }

  .layui-card-body {
    font-size: 12px;
  }
}

/* 超小屏手机 (max-width: 368px) */
@media screen and (max-width: 368px) {
  .layui-panel p {
    font-size: 10px !important;
  }

  .font-big {
    font-size: 21px !important;
  }

  .layui-nav * {
    font-size: 12px !important;
  }

  .layui-card-header {
    font-size: 12px !important;
  }

  .layui-card-body {
    font-size: 10px;
  }

  .layui-colla-title {
    font-size: 11px !important;
  }

  .layui-colla-content {
    font-size: 10px !important;
  }

  .margin-top {
    font-size: 16px;
  }

  .layui-form-pane .layui-form-label {
    width: 80px !important;
    padding: 8px !important;
    line-height: 18px !important;
    font-size: 11px !important;
  }

  .layui-input,
  .layui-textarea {
    display: block !important;
    width: 100% !important;
    padding-left: 7px !important;
    font-size: 11px !important;
  }

  .layui-form-radio > * {
    font-size: 11px !important;
  }

  .layui-upload-drag {
    font-size: 12px;
  }

  .layui-btn-primary {
    font-size: 11px !important;
  }

  .weixintext {
    font-size: 14px;
  }

  footer p {
    font-size: 9.1px !important;
  }

  .footspan {
    font-size: 11px;
  }

  .layui-form-item .layui-input-inline {
    margin: 0 0 10px 82px !important;
  }

  .layui-form-item .layui-input-inline + .layui-form-mid {
    margin-left: 0px !important;
    top: 0px !important;
  }

  .layui-form-switch > div {
    font-size: 11px !important;
  }
}

/* 极小屏设备 (max-width: 320px) */
@media screen and (max-width: 320px) {
  .layui-elem-quote {
    font-size: 11px !important;
  }
}