/* ===== 基础重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --orange: #f08300;
  --orange-dark: #e05a00;
  --dark: #2b2b2b;
  --gray: #666;
  --light-gray: #999;
  --bg-gray: #f2f2f2;
  --border: #e5e5e5;
  --blue: #1a4fa0;
  --red: #e60012;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background: #fff;
  font-size: 14px;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 内页（非首页）中间内容区最大宽度 1200px，头部/底部保持原宽度 */
.inner-page .container {
  max-width: 1200px;
}

.inner-page .header .container,
.inner-page .footer .container,
.inner-page .footer-bottom .container,
.inner-page .footer-dark .container {
  max-width: 1440px;
}

/* ===== 顶部导航 ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-img {
  height: 42px;
  width: auto;
  display: block;
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.logo-mark .box {
  width: 30px;
  height: 30px;
  background: var(--red);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-style: italic;
  border-radius: 3px;
  font-size: 18px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text .en {
  font-weight: 800;
  font-style: italic;
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--dark);
}

.logo-text .cn {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: 3px;
}

.nav ul {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav a {
  font-size: 15px;
  color: var(--dark);
  padding: 26px 0;
  display: inline-block;
  position: relative;
  transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
  color: var(--orange);
}

.nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 20px;
  width: 100%;
  height: 2px;
  background: var(--orange);
}

.nav .lang {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav .search-btn {
  cursor: pointer;
  color: var(--gray);
}

/* 移动端工具与抽屉菜单 */
.mobile-tools {
  display: none;
  align-items: center;
  gap: 18px;
}

.mobile-tools .m-search {
  font-size: 20px;
  color: var(--dark);
}

.m-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 24px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.m-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--dark);
  transition: transform 0.3s, opacity 0.3s;
}

.m-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.m-toggle.open span:nth-child(2) {
  opacity: 0;
}

.m-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 200;
  opacity: 0;
  transition: opacity 0.3s;
}

.drawer-mask.show {
  opacity: 1;
}

.drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 80%;
  max-width: 340px;
  height: 100%;
  background: #fff;
  z-index: 201;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.drawer.show {
  transform: translateX(0);
}

.drawer ul {
  list-style: none;
}

.drawer li {
  border-bottom: 1px solid var(--border);
}

.drawer a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 17px;
  color: var(--dark);
}

.drawer a:hover {
  color: var(--orange);
}

.drawer .arrow {
  color: var(--light-gray);
  font-size: 22px;
}

/* ===== 主视觉 ===== */
.hero {
  position: relative;
  height: 640px;
  overflow: hidden;
}

.hero .slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.hero .slide.active {
  opacity: 1;
}

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

.slide-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  border: none;
  background: rgba(0, 0, 0, 0.3);
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  z-index: 3;
  transition: background 0.3s ease;
}

.slide-arrow:hover {
  background: var(--orange);
}

.slide-arrow.prev {
  left: 20px;
}

.slide-arrow.next {
  right: 20px;
}

.slide-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 24px;
  display: flex;
  justify-content: center;
  gap: 10px;
  z-index: 3;
}

.slide-dots .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease;
}

.slide-dots .dot.active {
  background: #fff;
}

/* ===== 通用标题 ===== */
.section {
  padding: 70px 0;
}

.quote-mark {
  font-size: 70px;
  color: #d9d9d9;
  font-family: Georgia, serif;
  line-height: 0.6;
  height: 40px;
}

.section-head {
  text-align: center;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 14px;
}

.section-head .sub {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 6px;
}

.section-head .desc {
  max-width: 720px;
  margin: 0 auto;
  color: var(--light-gray);
  font-size: 14px;
}

/* ===== 产品图标网格 ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
  margin-top: 50px;
}

.product-item {
  text-align: center;
}

.product-item .thumb {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.product-item img {
  max-height: 90px;
  width: auto;
  margin: 0 auto;
  transition: transform 0.3s;
}

.product-item:hover img {
  transform: translateY(-6px);
}

.product-item span {
  font-size: 13px;
  color: var(--gray);
}

/* ===== WHO WE ARE ===== */
.who {
  background: var(--bg-gray);
}

.who-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.who-img img {
  width: 100%;
  border-radius: 2px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.who-text h3 {
  color: var(--gray);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
}

.who-text h2 {
  font-size: 26px;
  font-weight: 800;
  margin: 10px 0 20px;
}

.who-text p {
  color: var(--gray);
  font-size: 14px;
  line-height: 2;
  text-align: justify;
}

.btn {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  padding: 12px 34px;
  border-radius: 3px;
  font-size: 14px;
  margin-top: 26px;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--orange-dark);
}

/* ===== THE TRAMPOLINE ===== */
.trampoline-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.trampoline-text h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
}

.trampoline-text .lead {
  color: var(--gray);
  font-size: 16px;
  margin: 8px 0 20px;
  font-weight: 600;
}

.trampoline-text p {
  color: var(--gray);
  font-size: 14px;
  line-height: 2;
  text-align: justify;
}

.trampoline-text .bullets {
  margin-top: 18px;
}

.trampoline-text .bullets li {
  color: var(--gray);
  padding: 4px 0;
  position: relative;
  padding-left: 16px;
}

.trampoline-text .bullets li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 800;
}

.trampoline-img img {
  width: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

/* ===== 使用场景 ===== */
.scenes {
  background: var(--bg-gray);
}

.scenes-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 40px;
}

.scenes-intro h2 {
  font-size: 24px;
  font-weight: 800;
}

.scenes-intro p {
  color: var(--gray);
  font-size: 14px;
}

.scenes-intro a {
  color: var(--orange);
  text-decoration: underline;
}

.scenes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 200px);
  gap: 12px;
}

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

.scenes-grid .big {
  grid-column: span 2;
  grid-row: span 2;
}

/* ===== 最新资讯 ===== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-top: 50px;
}

.news-card {
  display: block;
  background: transparent;
  overflow: hidden;
}

.news-card .pic {
  display: block;
  height: 300px;
  overflow: hidden;
  background: #f2f2f2;
}

.news-card .pic img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.news-card:hover .pic img {
  transform: scale(1.04);
}

.news-card .body {
  display: block;
  padding: 24px 4px 0;
}

.news-card .date {
  display: block;
  color: var(--light-gray);
  font-size: 13px;
  font-style: italic;
}

.news-card h3 {
  font-size: 20px;
  font-weight: 500;
  margin: 14px 0 14px;
  color: var(--dark);
  transition: color 0.2s ease;
}

.news-card h3.is-active,
.news-card:hover h3 {
  color: var(--orange);
}

.news-card .desc {
  color: var(--gray);
  font-size: 14px;
  line-height: 1.9;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card .more {
  display: inline-block;
  margin-top: 20px;
  padding-bottom: 8px;
  color: var(--dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  border-bottom: 2px solid var(--dark);
}

.news-card:hover .more {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.center-btn {
  text-align: center;
  margin-top: 50px;
}

/* ===== 联系我们 ===== */
.contact {
  background: var(--orange);
  color: #fff;
  padding: 54px 0 60px;
  text-align: center;
}

.contact h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}

.contact p {
  font-size: 14px;
  opacity: 0.95;
  margin: 0 auto 30px;
  max-width: 620px;
}

.contact-form {
  display: flex;
  gap: 16px;
  max-width: 680px;
  margin: 0 auto;
}

.contact-form input {
  flex: 1;
  border: none;
  padding: 14px 22px;
  font-size: 14px;
  border-radius: 30px;
  outline: none;
  color: var(--dark);
}

.contact-form input::placeholder {
  color: #b5b5b5;
}

.contact-form button {
  background: #fff;
  color: var(--orange);
  border: none;
  padding: 0 40px;
  cursor: pointer;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}

.contact-form button:hover {
  background: var(--dark);
  color: #fff;
}

/* ===== 内页 banner ===== */
.page-banner {
  position: relative;
  height: 480px;
  overflow: hidden;
}

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

.page-banner-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  color: #fff;
}

.page-banner-text .container {
  width: 100%;
  text-align: right;
}

.page-banner-text h1 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 8px;
}

.page-banner-text p {
  font-size: 18px;
  opacity: 0.95;
}

/* ===== 公司联系信息 ===== */
.contact-info {
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border);
}

.contact-info h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 22px;
}

.contact-info p {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 16px;
}

/* ===== 留言表单 ===== */
.message-title {
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 40px;
}

.message-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.message-form input,
.message-form textarea {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px 20px;
  font-size: 15px;
  color: var(--dark);
  outline: none;
  font-family: inherit;
  transition: border-color 0.2s;
}

.message-form input::placeholder,
.message-form textarea::placeholder {
  color: #b5b5b5;
}

.message-form input:focus,
.message-form textarea:focus {
  border-color: var(--orange);
}

.message-form textarea {
  resize: vertical;
}

.message-form button {
  align-self: flex-start;
  background: var(--orange);
  color: #fff;
  border: none;
  padding: 15px 70px;
  border-radius: 30px;
  font-size: 15px;
  cursor: pointer;
  margin-top: 6px;
  transition: background 0.2s;
}

.message-form button:hover {
  background: #e07d0a;
}

/* ===== 地图 ===== */
.map-section {
  width: 100%;
  height: 460px;
  overflow: hidden;
}

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

/* ===== 新闻列表页 ===== */
.news-list {
  list-style: none;
}

.news-list li {
  border-bottom: 1px solid var(--border);
}

.news-list a {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 36px 0;
}

.news-list .date {
  flex-shrink: 0;
  width: 150px;
  padding-right: 40px;
  border-right: 1px solid var(--border);
  text-align: left;
}

.news-list .year {
  display: block;
  font-size: 40px;
  font-weight: 400;
  color: #bfbfbf;
  line-height: 1.1;
  transition: color 0.2s;
}

.news-list .day {
  display: block;
  font-size: 15px;
  color: #bfbfbf;
  margin-top: 4px;
}

.news-list .title {
  font-size: 20px;
  color: var(--dark);
  transition: color 0.2s;
}

.news-list a:hover .title,
.news-list .title.is-active {
  color: var(--orange);
}

.news-list a:hover .year {
  color: var(--orange);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  margin-top: 50px;
}

.pagination a {
  font-size: 16px;
  color: #999;
  font-weight: 700;
}

.pagination a.active {
  color: var(--dark);
}

.pagination a.next {
  color: var(--dark);
  font-weight: 400;
}

.pagination a:hover {
  color: var(--orange);
}

/* ===== 新闻详情页 ===== */
.news-detail-section {
  background: #f2f2f2;
}

.news-detail {
  background: #fff;
  padding: 50px 60px 40px;
  min-height: 700px;
  display: flex;
  flex-direction: column;
}

.news-detail-head {
  text-align: center;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border);
}

.news-detail-head h1 {
  font-size: 30px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 18px;
}

.news-detail-head .meta {
  font-size: 14px;
  color: var(--light-gray);
}

.news-detail-body {
  flex: 1;
  padding: 40px 0;
}

.news-detail-body p {
  font-size: 16px;
  line-height: 2;
  color: #444;
  text-indent: 2em;
  margin-bottom: 16px;
}

.news-detail-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.news-detail-foot .nav-links {
  flex: 1;
}

.news-detail-foot .nav-links p {
  font-size: 14px;
  color: var(--light-gray);
  line-height: 2;
}

.news-detail-foot .nav-links a {
  color: var(--light-gray);
}

.news-detail-foot .nav-links a:hover {
  color: var(--orange);
}

.news-detail-foot .back-list {
  flex-shrink: 0;
  padding-left: 40px;
  border-left: 1px solid var(--border);
  color: var(--light-gray);
  font-size: 15px;
}

.news-detail-foot .back-list .icon {
  margin-right: 6px;
}

.news-detail-foot .back-list:hover {
  color: var(--orange);
}

/* ===== 产品展示列表页 ===== */
.product-layout {
  display: flex;
  gap: 50px;
  align-items: flex-start;
}

/* 左侧分类 */
.product-sidebar {
  flex-shrink: 0;
  width: 220px;
}

.cat-list {
  list-style: none;
}

.cat-list > li > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 4px;
  font-size: 17px;
  color: var(--dark);
  border-bottom: 1px dashed var(--border);
  transition: color 0.2s;
}

.cat-list > li > a.active {
  color: var(--orange);
}

.cat-list > li > a:hover {
  color: var(--orange);
}

.cat-list .arrow {
  color: var(--light-gray);
  font-size: 18px;
  transition: transform 0.3s;
}

.cat-list .has-sub.open > a .arrow {
  transform: rotate(90deg);
}



.cat-list .sub-list {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.cat-list .has-sub.open .sub-list {
  max-height: 300px;
}

.cat-list .sub-list a {
  display: block;
  padding: 16px 4px 16px 24px;
  font-size: 15px;
  color: var(--gray);
  border-bottom: 1px dashed var(--border);
  transition: color 0.2s;
}

.cat-list .sub-list a:hover {
  color: var(--orange);
}

/* 右侧产品网格 */
.product-main {
  flex: 1;
  min-width: 0;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px 24px;
}

.product-card {
  display: block;
  text-align: center;
}

.product-card .pc-img {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #ffffff;
  margin-bottom: 16px;
}

.product-card .pc-img img {
width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;      /* 完整显示并居中,等比缩放 */
  object-position: center;  /* 居中对齐 */
}

.product-card:hover .pc-img img {
  transform: scale(1.06);
}

.product-card h3 {
  font-size: 17px;
  font-weight: 500;
  color: var(--dark);
  margin-bottom: 8px;
  transition: color 0.2s;
}

.product-card:hover h3 {
  color: var(--orange);
}

.product-card p {
  font-size: 14px;
  color: var(--light-gray);
}

.product-main .pagination {
  margin-top: 60px;
}

/* ===== 产品详情页 ===== */
.product-detail-page {
  background: #f2f2f2;
}

.breadcrumb {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--gray);
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--orange);
}

.breadcrumb .sep {
  margin: 0 8px;
  color: var(--light-gray);
}

.breadcrumb .current {
  color: var(--dark);
}

.detail-layout {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.detail-main {
  flex: 1;
  min-width: 0;
}

.detail-card {
  background: #fff;
  padding: 40px 50px 50px;
}

.detail-head {
  position: relative;
  text-align: center;
  margin-bottom: 30px;
}

.back-list-top {
  position: absolute;
  right: 0;
  top: 4px;
  font-size: 14px;
  color: var(--light-gray);
}

.back-list-top:hover {
  color: var(--orange);
}

.detail-head h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.detail-head .model {
  font-size: 15px;
  color: var(--light-gray);
}

/* 焦点图轮播 */
.gallery {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}

.gallery-arrow {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--gray);
  font-size: 24px;
  cursor: pointer;
  transition: all 0.2s;
}

.gallery-arrow:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.gallery-stage {
  position: relative;
  width: 520px;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #ffffff;
}

.gallery-img {
  position: absolute;
width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;      /* 完整显示并居中,等比缩放 */
  object-position: center;  /* 居中对齐 */
}

.gallery-img.is-active {
  opacity: 1;
}

/* 缩略图 */
.gallery-thumbs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.gallery-thumbs .thumb {
  width: 70px;
  height: 70px;
  padding: 0;
  border: 2px solid transparent;
  background: #ffffff;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.2s;
}

.gallery-thumbs .thumb img {
width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;      /* 完整显示并居中,等比缩放 */
  object-position: center;  /* 居中对齐 */
}

.gallery-thumbs .thumb.is-active {
  border-color: var(--orange);
}

/* 上下产品 */
.detail-prevnext {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
  margin-bottom: 26px;
}

.detail-prevnext p {
  font-size: 14px;
  color: var(--light-gray);
}

.detail-prevnext a {
  color: var(--light-gray);
}

.detail-prevnext a:hover {
  color: var(--orange);
}

/* 名称型号 */
.detail-meta {
  margin-bottom: 24px;
}

.detail-meta p {
  font-size: 15px;
  color: var(--gray);
  margin-bottom: 12px;
}

.detail-meta .label {
  color: var(--light-gray);
  margin-right: 6px;
}

/* 产品内容标题 */
.detail-content-bar {
  background: var(--orange);
  color: #fff;
  text-align: center;
  font-size: 17px;
  font-weight: 700;
  padding: 16px;
  margin-bottom: 24px;
}

/* 规格表 */
.spec-table-wrap {
  overflow-x: auto;
  margin-bottom: 40px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.spec-table th,
.spec-table td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
  color: #444;
  vertical-align: middle;
}

.spec-table th {
  background: #fafafa;
  font-weight: 600;
  color: var(--dark);
  white-space: nowrap;
}

.back-list-bottom {
  display: block;
  text-align: center;
  font-size: 15px;
  color: var(--light-gray);
}

.back-list-bottom:hover {
  color: var(--orange);
}

/* 右侧分类 */
.detail-sidebar {
  flex-shrink: 0;
  width: 260px;
  background: #fff;
  padding: 20px 24px;
}

.detail-sidebar .cat-list > li > a {
  padding: 18px 4px;
}

/* ===== 页脚 ===== */
.footer {
  background: #f5f5f5;
  padding: 70px 0 0;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.4fr;
  gap: 40px;
}

.footer-cols h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--dark);
}

.footer-cols li {
  margin-bottom: 12px;
}

.footer-cols li a {
  color: var(--gray);
  font-size: 13px;
}

.footer-cols li a:hover {
  color: var(--orange);
}

.footer-contact p {
  color: var(--gray);
  font-size: 13px;
  margin-bottom: 12px;
}

.footer-contact .wechat {
  color: var(--orange);
  font-weight: 700;
  margin-top: 6px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 50px;
  padding: 28px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom .logo-img {
  height: 38px;
}

.footer-bottom .copyright {
  color: var(--light-gray);
  font-size: 14px;
}

.footer-bottom .copyright a {
  color: var(--light-gray);
  margin-left: 6px;
}

.footer-bottom .copyright a:hover {
  color: var(--orange);
}

.footer-dark {
  background: #222;
  padding: 18px 0;
}

.footer-dark .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-dark p {
  color: #888;
  font-size: 13px;
}

.footer-dark a {
  color: #888;
}

.footer-dark a:hover {
  color: var(--orange);
}

/* ===== 返回顶部 ===== */
.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  background: var(--orange);
  color: #fff;
  border-radius: 4px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
  z-index: 90;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.back-top.show {
  display: flex;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
  .nav {
    display: none;
  }
  .mobile-tools {
    display: flex;
  }
  .header .container {
    height: 60px;
  }
  .logo-img {
    height: 34px;
  }
  .page-banner {
    height: 260px;
  }
  .page-banner-text h1 {
    font-size: 28px;
  }
  .page-banner-text p {
    font-size: 15px;
  }
  .map-section {
    height: 320px;
  }
  .message-form button {
    align-self: stretch;
  }
  .news-list a {
    gap: 20px;
    padding: 24px 0;
  }
  .news-list .date {
    width: 90px;
    padding-right: 20px;
  }
  .news-list .year {
    font-size: 28px;
  }
  .news-list .day {
    font-size: 13px;
  }
  .news-list .title {
    font-size: 16px;
  }
  .pagination {
    gap: 20px;
  }
  .news-detail {
    padding: 30px 20px;
    min-height: auto;
  }
  .news-detail-head h1 {
    font-size: 22px;
  }
  .news-detail-body p {
    font-size: 15px;
  }
  .news-detail-foot {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .news-detail-foot .back-list {
    padding-left: 0;
    border-left: none;
  }
  .product-layout {
    flex-direction: column;
    gap: 24px;
  }
  .product-sidebar {
    width: 100%;
  }
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .detail-layout {
    flex-direction: column;
  }
  .detail-sidebar {
    width: 100%;
  }
  .detail-card {
    padding: 24px 16px;
  }
  .back-list-top {
    position: static;
    display: inline-block;
    margin-bottom: 12px;
  }
  .gallery {
    gap: 8px;
  }
  .gallery-arrow {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }
  .detail-head h1 {
    font-size: 22px;
  }
  .products-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .who-row,
  .trampoline-row,
  .scenes-intro,
  .news-grid,
  .footer-cols {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .scenes-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 160px);
  }
  .scenes-grid .big {
    grid-column: span 2;
  }
  .hero {
  height: 240px;
  }
  .slide-arrow {
  width: 34px;
  height: 34px;
  font-size: 16px;
  }
  }

@media (max-width: 560px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-form {
    flex-direction: column;
    gap: 14px;
  }
  .contact-form input,
  .contact-form button {
    border-radius: 40px;
    padding: 16px 24px;
  }
}