/* ============================================================
   index.css — 首页专属样式
   ============================================================ */

/* ====== 变量（首页专属） ====== */
:root {
  --nav-blue: #0d2b4e;        /* 导航深蓝 */
  --accent-orange: #f47920;   /* 强调橙 */
  --text-dark: #444;
  --text-gray: #777;
}

/* ====== 头部 — 上层白底通栏 ====== */
.header-top {
  background: #fff;
  padding: 18px 0;
  border-bottom: 1px solid #eee;
}

.header-top .wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 左侧 LOGO + 口号 */
.ht-left {
  display: flex;
  align-items: center;
  gap: 28px;
}
.ht-left .logo-link {
  display: block;
  flex: 0 0 auto;
}
.ht-left img {
  max-height: 68px;
  width: auto;
}

/* 口号文字 */
.ht-slogan {
  flex: 0 0 auto;
}
.ht-slogan1 {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 19px;
  color: #444;
  line-height: 1.5;
  letter-spacing: 1px;
}
.ht-slogan1 .ht-accent {
  color: #f47920;
  font-weight: bold;
}
.ht-slogan2 {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  color: #666;
  line-height: 1.6;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* 右侧热线 */
.ht-right {
  flex: 0 0 auto;
  text-align: right;
  margin-left: auto;
}
.ht-hotline {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}
.ht-hotlabel {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #888;
}
.ht-hotnum {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  color: #0d2b4e;
  font-weight: bold;
  letter-spacing: 0.5px;
  margin-top: 4px;
}
.ht-hotnum i {
  color: #f47920;
  font-size: 20px;
}

/* ====== 头部 — 下层深蓝导航栏 ====== */
.header-nav {
  background: #0d2b4e;
}

.header-nav .wrapper {
  /* wrapper 已定义在 common.css */
}

.hn-list {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.hn-list > li {
  flex: 1;
  text-align: center;
  position: relative;
}

.hn-list > li > a {
  display: block;
  padding: 0 12px;
  height: 58px;
  line-height: 58px;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
  position: relative;
}
.hn-list > li > a::after {
  content: "";
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: #fff;
  transition: width .25s ease;
}
.hn-list > li > a i {
  font-size: 10px;
  margin-left: 5px;
  vertical-align: middle;
}
.hn-list > li:hover > a::after,
.hn-list > li.active > a::after {
  width: 30px;
}

/* 下拉子菜单 */
.hn-sub {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 130px;
  background: #fff;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 6px 20px rgba(0,0,0,.12);
  z-index: 100;
  padding: 6px 0;
}
.hn-list > li:hover .hn-sub {
  display: block;
}
.hn-sub li a {
  display: block;
  padding: 10px 22px;
  font-size: 15px;
  color: #333;
  white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}
.hn-sub li a:hover {
  color: #153791;
  background: #f5f7fa;
}

/* ====== 响应式 — 头部 ====== */

/* 平板及以下 */
@media screen and (max-width: 1000px) {
  .ht-slogan {
    display: none;
  }
  .hn-list > li > a {
    font-size: 15px;
    height: 48px;
    line-height: 48px;
    padding: 0 8px;
  }
}

/* 手机端 */
@media screen and (max-width: 768px) {
  .header-top {
    padding: 12px 0;
  }
  .ht-left {
    max-width: 140px;
  }
  .ht-left img {
    max-height: 48px;
  }
  .ht-hotlabel {
    font-size: 12px;
  }
  .ht-hotnum {
    font-size: 17px;
  }
  .hn-list {
    flex-wrap: wrap;
  }
  .hn-list > li {
    flex: 0 0 33.333%;
  }
  .hn-list > li > a {
    font-size: 14px;
    height: 42px;
    line-height: 42px;
    border: 1px solid rgba(255,255,255,.12);
  }
  .hn-sub {
    display: none !important;
  }
}

@media screen and (max-width: 480px) {
  .ht-right {
    display: none;
  }
  .ht-left {
    max-width: 120px;
    margin: 0 auto;
  }
  .hn-list > li {
    flex: 0 0 50%;
  }
}

/* ====== Banner 轮播 ====== */
.banner-section {
  width: 100%;
}

.banner-swiper {
  width: 100%;
  overflow: hidden; /* 防止 FOUC */
}
.banner-swiper .swiper-wrapper,
.banner-swiper .swiper-slide {
  /* 高度由图片决定 */
}
.banner-swiper .swiper-slide img {
  width: 100%;
  height: auto;
  display: block;
}

/* 分页器 */
.banner-swiper .swiper-pagination {
  bottom: 24px;
}
.banner-swiper .swiper-pagination-bullet {
  width: 14px;
  height: 14px;
  background: rgba(255,255,255,.5);
  opacity: 1;
  transition: all .3s ease;
  margin: 0 6px;
}
.banner-swiper .swiper-pagination-bullet-active {
  background: #f47920;
  width: 36px;
  border-radius: 7px;
}

/* 导航箭头 */
.banner-swiper .swiper-button-prev,
.banner-swiper .swiper-button-next {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(4px);
  color: #fff;
  transition: all .3s ease;
}
.banner-swiper .swiper-button-prev:hover,
.banner-swiper .swiper-button-next:hover {
  background: rgba(244,121,32,.85);
}
.banner-swiper .swiper-button-prev::after,
.banner-swiper .swiper-button-next::after {
  font-size: 18px;
  font-weight: bold;
}

/* 响应式 */
@media screen and (max-width: 768px) {
  .banner-swiper .swiper-button-prev,
  .banner-swiper .swiper-button-next {
    display: none;
  }
}
@media screen and (max-width: 480px) {
  .banner-swiper .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
  }
  .banner-swiper .swiper-pagination-bullet-active {
    width: 26px;
    border-radius: 5px;
  }
}

/* ====== 热门产品 ====== */
.hotpro-section {
  background: #f5f5f5;
  padding: 80px 0;
}

.hotpro-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.hotpro-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  transition: transform .4s ease, box-shadow .4s ease;
}
.hotpro-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 36px rgba(0,0,0,.1);
}

/* 图片区 */
.hotpro-img {
  width: 100%;
  overflow: hidden;
}
.hotpro-img img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}
.hotpro-card:hover .hotpro-img img {
  transform: scale(1.08);
}

/* 信息区 */
.hotpro-info {
  text-align: center;
  padding: 18px 20px 28px;
}
.hotpro-info h3 {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  color: #222;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hotpro-info p {
  font-size: 14px;
  line-height: 22px;
  color: #666;
  height: 44px;
  overflow: hidden;
  margin-top: 10px;
}

/* 按钮 */
.hotpro-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 24px;
  padding: 10px 28px;
  background: #153791;
  color: #fff;
  border-radius: 40px;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  white-space: nowrap;
  transition: background .3s ease;
}
.hotpro-btn i {
  font-size: 13px;
}
.hotpro-card:hover .hotpro-btn {
  background: #f47920;
}

/* 响应式 */
@media screen and (max-width: 1000px) {
  .hotpro-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}
@media screen and (max-width: 768px) {
  .hotpro-section {
    padding: 50px 0;
  }
  .hotpro-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .hotpro-info {
    padding: 14px 14px 22px;
  }
  .hotpro-info h3 {
    font-size: 16px;
  }
  .hotpro-btn {
    margin-top: 16px;
    padding: 8px 20px;
    font-size: 13px;
  }
}
@media screen and (max-width: 480px) {
  .hotpro-section {
    padding: 40px 0;
  }
  .hotpro-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .hotpro-info {
    padding: 10px 10px 16px;
  }
  .hotpro-info h3 {
    font-size: 14px;
  }
  .hotpro-info p {
    display: none;
  }
}

/* ====== 企业简介 & 视频 ====== */
.about-section {
  background: url(../images/about_bg.jpg) no-repeat center top;
  background-size: cover;
  padding: 70px 0 60px;
}

/* 上层：视频 + 描述 */
.about-main {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 3%;
}

/* 左侧视频 */
.about-video {
  flex: 0 0 52%;
}
.about-video video {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 10px;
  display: block;
  background: #000;
}

/* 右侧描述 */
.about-desc {
  flex: 1 1 45%;
  color: #fff;
}
.about-desc h2 {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 30px;
  font-weight: bold;
  line-height: 1.3;
}
.about-desc p {
  font-size: 16px;
  line-height: 32px;
  margin: 30px 0;
  text-indent: 2em;
}

/* 了解详情按钮 */
.about-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 200px;
  height: 50px;
  background: #f47920;
  border-radius: 40px;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  color: #fff;
  transition: background .3s ease;
}
.about-more:hover {
  background: #e0681a;
  color: #fff;
}

/* 底部：4个数据卡片 */
.about-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2%;
  margin-top: 50px;
}
.about-stats li {
  flex: 1 1 calc(25% - 2%);
  min-width: 200px;
  text-align: center;
  background: #fff;
  border-radius: 8px;
  padding: 45px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .3s ease, box-shadow .3s ease;
}
.about-stats li:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0,0,0,.15);
}
.as-num {
  font-family: "Arial Black", Gadget, "SimHei", sans-serif;
  font-size: 42px;
  font-weight: bold;
  color: #044088;
  line-height: 1.2;
  transition: color .3s ease;
}
.as-text {
  display: inline-block;
  line-height: 22px;
  text-align: left;
  border-left: 1px solid #b3b4b5;
  margin-left: 12px;
  padding-left: 12px;
  font-style: normal;
  color: #555;
  font-size: 15px;
}
.about-stats li:hover .as-num {
  color: #f47920;
}

/* 响应式 */
@media screen and (max-width: 1000px) {
  .about-video {
    flex: 0 0 47%;
  }
  .about-desc {
    flex: 1 1 50%;
  }
  .about-desc h2 {
    font-size: 26px;
  }
  .about-desc p {
    margin: 20px 0;
  }
  .about-more {
    width: 180px;
    height: 45px;
    font-size: 16px;
  }
  .about-stats li {
    flex: 1 1 calc(50% - 2%);
  }
}

@media screen and (max-width: 768px) {
  .about-section {
    padding: 50px 0 40px;
  }
  .about-video {
    flex: 0 0 100%;
    margin-bottom: 24px;
  }
  .about-desc {
    flex: 0 0 100%;
  }
  .about-desc h2 {
    font-size: 24px;
  }
  .about-desc p {
    font-size: 15px;
    line-height: 30px;
  }
}

@media screen and (max-width: 480px) {
  .about-stats {
    display: none;
  }
  .about-desc p {
    margin: 16px 0;
    font-size: 14px;
    line-height: 26px;
    text-indent: 2em;
  }
  .about-more {
    width: 160px;
    height: 40px;
    font-size: 15px;
  }
}

/* ====== 工艺方案展示 ====== */
.process-section {
  background: #fff;
  padding: 80px 0;
}

.process-row {
  display: flex;
  align-items: stretch;
  gap: 60px;
}

/* 左侧文字 */
.process-text {
  flex: 1 1 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.process-title {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 32px;
  color: #222;
  font-weight: bold;
  line-height: 1.4;
  margin-top: 8px;
}
.process-hl {
  color: #153791;
}
.process-divider {
  width: 60px;
  height: 3px;
  background: #153791;
  margin: 18px 0 24px;
}
.process-desc {
  font-size: 15px;
  line-height: 28px;
  color: #555;
  margin-bottom: 28px;
}

/* 勾选要点 */
.process-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
}
.process-features li {
  font-size: 15px;
  line-height: 24px;
  color: #333;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.process-features li i {
  color: #153791;
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 3px;
}

/* 右侧图片 */
.process-image {
  flex: 1 1 50%;
}
.process-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}

/* 响应式 */
@media screen and (max-width: 900px) {
  .process-row {
    flex-direction: column;
    gap: 36px;
  }
  .process-image {
    order: -1; /* 图片移到上方 */
  }
  .process-title {
    font-size: 26px;
  }
}
@media screen and (max-width: 600px) {
  .process-section {
    padding: 50px 0;
  }
  .process-title {
    font-size: 22px;
  }
  .process-features {
    grid-template-columns: 1fr;
  }
  .process-desc {
    font-size: 14px;
    line-height: 26px;
  }
}

/* ====== 物料展示 ====== */
.material-section {
  background: url(../images/wuliao_bg.jpg) no-repeat center top;
  background-size: cover;
  padding: 80px 0;
}

.material-desc {
  text-align: center;
  font-size: 16px;
  color: #666;
  margin-top: 10px;
}

/* 8卡片网格 */
.material-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.material-card {
  text-align: center;
  transition: transform .3s ease;
}
.material-card:hover {
  transform: translateY(-6px);
}

/* 缩略图 — 3:2 */
.material-img {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  transition: box-shadow .3s ease;
}
.material-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.material-card:hover .material-img {
  box-shadow: 0 6px 24px rgba(0,0,0,.15);
}

/* 标题 */
.material-name {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  color: #333;
  margin-top: 14px;
  font-weight: normal;
}

/* 响应式 */
@media screen and (max-width: 768px) {
  .material-section {
    padding: 50px 0;
  }
  .material-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 32px;
  }
  .material-name {
    font-size: 14px;
  }
}
@media screen and (max-width: 480px) {
  .material-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .material-img {
    border-radius: 8px;
  }
  .material-name {
    font-size: 13px;
    margin-top: 10px;
  }
}

/* ====== 全套设备展示 ====== */
.equip-section {
  background: url(../images/equip_bg.jpg) no-repeat center center;
  background-size: cover;
  background-attachment: fixed;
  padding: 90px 0 80px;
}

/* 深色背景文字覆盖 */
.equip-section .sec-subtitle {
  color: rgba(255,255,255,.75);
}
.equip-section .sec-maintitle {
  color: #fff;
}
.equip-section .process-hl {
  color: #4da3ff;
}

.equip-subdesc {
  text-align: center;
  font-size: 15px;
  color: rgba(255,255,255,.7);
  margin-top: 8px;
}

/* 4x2 网格 */
.equip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.equip-card {
  text-align: center;
  transition: transform .3s ease;
}
.equip-card:hover {
  transform: translateY(-6px);
}

/* 缩略图 */
.equip-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  overflow: hidden;
  transition: box-shadow .3s ease;
}
.equip-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* 名称 */
.equip-name {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  color: #fff;
  font-weight: normal;
  margin-top: 14px;
}

/* 响应式 */
@media screen and (max-width: 900px) {
  .equip-section {
    padding: 60px 0 50px;
    background-attachment: scroll;
  }
  .equip-grid {
    gap: 14px;
  }
  .equip-img {
    border-radius: 8px;
  }
  .equip-name {
    font-size: 14px;
  }
}
@media screen and (max-width: 600px) {
  .equip-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .equip-img {
    border-radius: 8px;
  }
  .equip-name {
    font-size: 13px;
  }
}

/* ====== 客户案例 ====== */
.case-section {
  background-color: #f5f7fa;
  background-image: radial-gradient(circle, #eee 5px, transparent 5px);
  background-size: 24px 24px;
  padding: 80px 0;
}

.case-subdesc {
  text-align: center;
  font-size: 15px;
  color: #888;
  margin-top: 8px;
}

/* 4列网格 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.case-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.case-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 28px rgba(0,0,0,.1);
}

/* 案例图片 */
.case-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.case-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s ease;
}
.case-card:hover .case-img img {
  transform: scale(1.06);
}

/* 案例信息 */
.case-title {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  color: #222;
  padding: 18px 20px 0;
  font-weight: bold;
}
.case-info {
  font-size: 14px;
  color: #888;
  padding: 4px 20px 0;
}
.case-card .case-info:last-child {
  padding-bottom: 22px;
}

/* 响应式 */
@media screen and (max-width: 900px) {
  .case-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}
@media screen and (max-width: 600px) {
  .case-section {
    padding: 50px 0;
  }
  .case-title {
    font-size: 15px;
    padding: 14px 14px 0;
  }
  .case-info {
    font-size: 13px;
    padding: 2px 14px 0;
  }
}

/* ====== 新闻动态 ====== */
.news-section {
  background: #fff;
  padding: 80px 0;
}

.news-subdesc {
  text-align: center;
  font-size: 15px;
  color: #888;
  margin-top: 8px;
}

/* 2列网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}

/* 卡片 — 左图右文 */
.news-card {
  display: flex;
  background: #fff;
  border: 1px solid #e8eaed;
  border-radius: 10px;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,.1);
}

/* 左侧图片 */
.news-img {
  flex: 0 0 38%;
  aspect-ratio: 4 / 3;
  padding: 14px;
  overflow: hidden;
  display: block;
}
.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  transition: transform .5s ease;
}
.news-card:hover .news-img img {
  transform: scale(1.08);
}

/* 右侧内容 */
.news-body {
  flex: 1;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-date {
  font-size: 13px;
  color: #999;
  margin-bottom: 6px;
}

.news-title {
  margin-bottom: 10px;
}
.news-title a {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  color: #222;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-title a:hover {
  color: #153791;
}

.news-excerpt {
  font-size: 14px;
  line-height: 24px;
  color: #888;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.news-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14px;
  color: #153791;
  font-weight: bold;
}
.news-more:hover {
  color: #f47920;
}
.news-more i {
  font-size: 12px;
  transition: transform .3s ease;
}
.news-more:hover i {
  transform: translateX(3px);
}

/* 响应式 */
@media screen and (max-width: 900px) {
  .news-grid {
    grid-template-columns: 1fr;
  }
}
@media screen and (max-width: 600px) {
  .news-section {
    padding: 50px 0;
  }
  .news-card {
    flex-direction: column;
  }
  .news-img {
    flex: 0 0 auto;
    aspect-ratio: 16 / 9;
  }
  .news-body {
    padding: 16px;
  }
}

/* ====== 底部 ====== */
.footer {
  background: #1a1f2b;
  color: rgba(255,255,255,.7);
}

.footer-main {
  padding: 70px 0 50px;
}

/* 4列网格 */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.3fr 1.2fr;
  gap: 50px;
}

.footer-title {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  color: #fff;
  font-weight: bold;
  margin-bottom: 22px;
}

/* 公司简介列 */
.footer-desc {
  font-size: 14px;
  line-height: 26px;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
}
.fs-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,.1);
  color: #fff;
  font-size: 18px;
  transition: background .3s ease;
  cursor: pointer;
  text-decoration: none;
}
.fs-icon:hover {
  background: #f47920;
  color: #fff;
}

/* 二维码弹出 */
.fs-qr-trigger {
  position: relative;
}
.fs-qr-popup {
  display: none;
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 6px 24px rgba(0,0,0,.3);
  padding: 8px 8px 10px;
  z-index: 99;
}
.fs-qr-popup::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #fff;
}
.fs-qr-popup img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  border-radius: 4px;
  display: block;
}
.fs-qr-label {
  display: block;
  text-align: center;
  font-size: 12px;
  color: #666;
  margin-top: 6px;
  line-height: 1.4;
}
.fs-qr-trigger:hover .fs-qr-popup {
  display: block;
}

/* 导航列 */
.footer-nav ul li a {
  font-size: 14px;
  line-height: 34px;
  color: rgba(255,255,255,.7);
  transition: color .3s ease;
}
.footer-nav ul li a:hover {
  color: #f47920;
}

/* 联系列 */
.footer-contact ul li {
  font-size: 14px;
  line-height: 34px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.footer-contact ul li i {
  color: #f47920;
  font-size: 14px;
  margin-top: 10px;
  width: 16px;
  flex-shrink: 0;
}
.footer-contact ul li a {
  color: rgba(255,255,255,.7);
}
.footer-contact ul li a:hover {
  color: #f47920;
}

/* 新闻列 */
.footer-news ul li a {
  font-size: 14px;
  line-height: 34px;
  color: rgba(255,255,255,.7);
  transition: color .3s ease;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}
.footer-news ul li a:hover {
  color: #f47920;
}

/* 版权栏 */
.footer-bar {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 18px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bar a {
  color: rgba(255,255,255,.4);
}
.footer-bar a:hover {
  color: #fff;
}

/* 响应式 */
@media screen and (max-width: 900px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 30px;
  }
  .footer-main {
    padding: 50px 0 30px;
  }
}
@media screen and (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-main {
    padding: 40px 0 20px;
  }
  .footer-title {
    margin-bottom: 14px;
    font-size: 16px;
  }
}

/* ====== 侧边悬浮栏 ====== */
.side-bar {
  position: fixed;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.side-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: #fff;
  color: #555;
  font-size: 12px;
  text-decoration: none;
  border-radius: 14px;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  position: relative;
  transition: all .3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  gap: 2px;
}
.side-item i {
  font-size: 20px;
}
.side-label {
  font-size: 10px;
  line-height: 1;
}
.side-item:hover {
  background: #153791;
  color: #fff;
  transform: translateX(-4px);
  box-shadow: 0 4px 20px rgba(21,55,145,.3);
}
.side-item:hover i {
  transform: scale(1.15);
}

/* 电话/邮箱 hover 弹出 */
.side-popup {
  display: none;
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  background: #153791;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: bold;
  letter-spacing: .5px;
  box-shadow: 0 4px 16px rgba(21,55,145,.25);
}
.side-popup::after {
  content: "";
  position: absolute;
  right: -7px;
  top: 50%;
  transform: translateY(-50%);
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 7px solid #153791;
}
.side-hover:hover .side-popup {
  display: block;
}

/* 微信二维码弹出 */
.side-qr {
  cursor: pointer;
}
.side-qr-popup {
  display: none;
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translateY(-50%);
  width: 136px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(0,0,0,.15);
  padding: 8px;
}
.side-qr-popup::after {
  content: "";
  position: absolute;
  right: -7px;
  top: 50%;
  transform: translateY(-50%);
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 7px solid #fff;
}
.side-qr-popup img {
  width: 100%;
  display: block;
  border-radius: 6px;
}
.side-qr:hover .side-qr-popup {
  display: block;
}

/* 移动端隐藏 */
@media screen and (max-width: 768px) {
  .side-bar {
    display: none;
  }
}

/* ============================================
   以下待添加：其他模块
   ============================================ */

/* ====== 通用模块标题 ====== */
.sec-title {
  text-align: center;
  margin-bottom: 48px;
}
.sec-subtitle {
  display: block;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  color: #3369c0;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.sec-maintitle {
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 36px;
  color: #222;
  font-weight: bold;
  letter-spacing: 1px;
}

/* ====== 产品分类 ====== */
.procat-section {
  background: #f5f7fa;
  padding: 72px 0 80px;
}

.procat-swiper {
  padding-bottom: 50px;
  overflow: hidden; /* 防止 FOUC */
}
.procat-swiper .swiper-wrapper,
.procat-swiper .swiper-slide {
  /* 由 Swiper JS 接管 */
}

/* 卡片 */
.procat-card {
  display: block;
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0,0,0,.06);
  transition: transform .3s ease, box-shadow .3s ease;
}
.procat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 28px rgba(0,0,0,.12);
}

/* 图片区 */
.procat-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #eef1f5;
}
.procat-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.procat-card:hover .procat-img img {
  transform: scale(1.06);
}

/* 分类名称 */
.procat-name {
  text-align: center;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  color: #222;
  padding: 18px 12px 0;
  font-weight: normal;
}

/* 按钮 */
.procat-btn {
  display: inline-block;
  margin: 12px auto 22px;
  padding: 7px 22px;
  border: 1.5px solid #3369c0;
  border-radius: 22px;
  font-family: "SimHei", "黑体", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #3369c0;
  text-align: center;
  transition: all .3s ease;
}
.procat-btn i {
  margin-left: 4px;
  font-size: 12px;
}
.procat-card:hover .procat-btn {
  background: #3369c0;
  color: #fff;
}

.procat-name,
.procat-btn {
  display: block;
  text-align: center;
}
.procat-btn {
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* 分页器 */
.procat-swiper .swiper-pagination {
  bottom: 0;
}
.procat-swiper .swiper-pagination-bullet {
  width: 10px;
  height: 10px;
  background: #c8ccd4;
  opacity: 1;
  margin: 0 5px;
}
.procat-swiper .swiper-pagination-bullet-active {
  background: #3369c0;
  width: 28px;
  border-radius: 5px;
}

/* 响应式 */
@media screen and (max-width: 768px) {
  .procat-section {
    padding: 48px 0 56px;
  }
  .sec-maintitle {
    font-size: 28px;
  }
  .sec-title {
    margin-bottom: 32px;
  }
}