/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { background-color: #ffffff; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: #333;
  line-height: 1.6;
  background-color: #ffffff;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; border: 0; }
ul { list-style: none; }

.container {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 页头：白底 Logo 信息条 ===== */
.site-header { background-color: #fff; }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 130px;
}
.brand { display: flex; align-items: center; }
.brand-logo { height: 84px; width: auto; }
.header-services {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 16px;
  color: #555;
}

/* ===== 红色导航条 ===== */
.main-nav { background-color: #c8161d; }
.nav-inner {
  display: flex;
  align-items: stretch;
  justify-content: center;
}
.main-nav a {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 150px;
  height: 64px;
  font-size: 16px;
  color: #fff;
  transition: background-color .2s;
}
.main-nav a + a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 22px;
  width: 1px;
  background-color: rgba(255,255,255,.35);
}
.main-nav a:hover,
.main-nav a.active { background-color: #a81015; }

/* 汉堡按钮（桌面端隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  width: 100%;
  height: 48px;
  padding: 0 4px;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 15px;
  cursor: pointer;
}
.nav-toggle-bars {
  position: relative;
  display: inline-block;
  width: 22px;
  height: 16px;
}
.nav-toggle-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #fff;
  transition: transform .25s, opacity .25s, top .25s;
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 7px; }
.nav-toggle-bars span:nth-child(3) { top: 14px; }
.main-nav.is-open .nav-toggle-bars span:nth-child(1) { top: 7px; transform: rotate(45deg); }
.main-nav.is-open .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.main-nav.is-open .nav-toggle-bars span:nth-child(3) { top: 7px; transform: rotate(-45deg); }

/* ===== 焦点图 ===== */
.hero { position: relative; width: 100%; overflow: hidden; background-color: #c8161d; }
.hero img { width: 100%; height: auto; display: block; }
.hero-slides { position: relative; width: 100%; }
.hero-slide { display: none; }
.hero-slide.is-active { display: block; }
.hero-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  display: flex;
  justify-content: center;
  gap: 10px;
}
.hero-dot {
  width: 12px;
  height: 12px;
  padding: 0;
  border: none;
  border-radius: 50%;
  background-color: rgba(255,255,255,.55);
  cursor: pointer;
  transition: background-color .2s;
}
.hero-dot.is-active { background-color: #fff; }

/* ===== 主体 ===== */
.page {
  display: flex;
  gap: 48px;
  padding-top: 50px;
  padding-bottom: 60px;
  align-items: flex-start;
}

/* 左侧栏 */
.contact-side { flex: 0 0 260px; }
.qr-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 24px;
}
.qr-box img {
  width: 180px;
  height: 180px;
  border: 1px solid #eee;
}
.qr-caption { margin-top: 10px; font-size: 12px; color: #666; }

.contact-info { font-size: 13px; color: #444; }
.contact-info li { padding: 6px 0; border-bottom: 1px dashed #eee; }
.contact-info li:last-child { border-bottom: none; }
.contact-info strong { color: #222; font-weight: 700; }

/* 右侧栏 */
.contact-main { flex: 1 1 auto; min-width: 0; }
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.section-title {
  font-size: 19px;
  font-weight: 700;
  color: #222;
  padding-left: 14px;
  border-left: 4px solid #c8161d;
  line-height: 1.2;
}
.breadcrumb { font-size: 12px; color: #999; }
.breadcrumb a:hover { color: #c8161d; }
.breadcrumb .sep { margin: 0 8px; color: #ccc; }
.breadcrumb .current { color: #666; }

/* 地图 */
.map-box {
  width: 100%;
  height: 480px;
  background-color: #eaedf0;
  border: 1px solid #e2e2e2;
  overflow: hidden;
}
.map-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 12px;
  line-height: 1.9;
  text-align: center;
  padding: 0 20px;
}
.map-ph-title { font-size: 15px; color: #555; margin-bottom: 6px; }
.map-ph-tip { font-size: 10px; color: #aaa; margin-top: 10px; max-width: 420px; }

/* ===== 页脚 ===== */
.site-footer {
  background-color: #2b2b2b;
  color: #bbb;
  text-align: center;
  font-size: 14px;
  padding: 24px 0;
  line-height: 2;
}
.site-footer a:hover { color: #fff; }
.footer-sub { color: #888; }

/* ===== 通用区块标题（首页居中） ===== */
.block { padding: 56px 0; }
.block-gray { background-color: #f7f7f7; }
.block-title { text-align: center; margin-bottom: 36px; }
.block-title .en {
  display: block;
  font-size: 12px;
  letter-spacing: 4px;
  color: #cfcfcf;
  text-transform: uppercase;
  font-weight: 700;
}
.block-title .cn {
  display: inline-block;
  position: relative;
  font-size: 24px;
  font-weight: 700;
  color: #222;
  margin-top: 6px;
  padding-bottom: 14px;
}
.block-title .cn::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background-color: #c8161d;
}

/* ===== 产品展示标题 ===== */
.pd-title { margin-bottom: 40px; }
.pd-title-row {
  display: flex;
  align-items: center;
  gap: 28px;
}
.pd-title-row .line {
  flex: 1 1 auto;
  height: 1px;
  background-color: #dcdcdc;
}
.pd-title .en {
  flex: 0 0 auto;
  font-size: 32px;
  font-weight: 800;
  color: #1a1a1a;
  letter-spacing: 2px;
  white-space: nowrap;
}
.pd-title .cn {
  display: block;
  text-align: center;
  margin-top: 12px;
  font-size: 17px;
  font-weight: 700;
  color: #222;
  letter-spacing: 2px;
}

/* ===== 产品展示跑马灯 ===== */
.pd-marquee { position: relative; padding: 0 56px; }
.pd-viewport { overflow: hidden; }
.pd-track {
  display: flex;
  gap: 24px;
  will-change: transform;
}
.pd-item {
  flex: 0 0 auto;
  width: 230px;
}
.pd-item .thumb {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid #ececec;
  background-color: #f7f7f7;
}
.pd-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s;
}
.pd-item:hover .thumb img { transform: scale(1.06); }
.pd-item .name {
  margin-top: 16px;
  text-align: center;
  font-size: 14px;
  color: #444;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pd-item:hover .name { color: #c8161d; }
.pd-arrow {
  position: absolute;
  top: 42%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background-color: transparent;
  color: #c2c2c2;
  font-size: 39px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  transition: color .2s;
}
.pd-arrow:hover { color: #c8161d; }
.pd-prev { left: 6px; }
.pd-next { right: 6px; }

/* ===== 关于我们 ===== */
.about-section {
  background-color: #f4f4f4;
  background-image: url("../img/about-bg.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.about-cols {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}
.about-col {
  flex: 1 1 25%;
  min-width: 0;
  text-align: center;
}

/* 圆形图标 */
.about-circle {
  width: 150px;
  height: 150px;
  margin: 0 auto 28px;
  border: 1px solid #c9c9c9;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
  transition: color .3s, border-color .3s;
}
.about-circle svg { width: 64px; height: 64px; }
.circle-news {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 1px;
  color: inherit;
}
.about-col:hover .about-circle {
  color: #c8161d;
  border-color: #c8161d;
}

.about-col-title {
  font-size: 17px;
  font-weight: 700;
  color: #222;
  margin-bottom: 22px;
}
.about-col-body { text-align: left; }

.about-text {
  font-size: 13px;
  color: #666;
  line-height: 1.9;
  margin-bottom: 12px;
}

/* 动态列表 */
.dot-list li {
  position: relative;
  padding: 9px 0 9px 16px;
  font-size: 13px;
}
.dot-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 4px;
  height: 4px;
  background-color: #999;
}
.dot-list a {
  color: #555;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dot-list a:hover { color: #c8161d; }

/* 文件下载（编号链接） */
.file-list { list-style: none; counter-reset: file; }
.file-list li {
  counter-increment: file;
  padding: 9px 0;
  font-size: 13px;
}
.file-list a { color: #2f6fd6; }
.file-list a::before { content: counter(file) "、"; }
.file-list a:hover { color: #c8161d; }

/* 联系方式 */
.contact-list li {
  padding: 8px 0;
  font-size: 13px;
  color: #555;
}

/* ===== 产品分类侧栏 ===== */
.cat-head {
  margin-bottom: 12px;
}
.cat-head-en {
  font-size: 20px;
  font-weight: 700;
  color: #c8161d;
  letter-spacing: 1px;
}
.cat-head-cn {
  font-size: 19px;
  font-weight: 700;
  color: #c8161d;
  margin-top: 4px;
}
.cat-list {
  list-style: none;
}
.cat-list li {
  border-bottom: 1px solid #eee;
}
.cat-list a {
  display: block;
  padding: 10px 8px;
  font-size: 14px;
  color: #c8161d;
  transition: background-color .2s, padding-left .2s;
}
.cat-list a:hover,
.cat-list a.active {
  background-color: #faf2f2;
  padding-left: 14px;
}

/* ===== 产品网格 ===== */
.product-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 6px;
}
.product-card {
  border: 1px solid #eee;
  transition: box-shadow .2s, border-color .2s;
}
.product-card:hover {
  border-color: #e6b8ba;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .08);
}
.product-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: #f6f6f6;
}
.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .3s;
}
.product-card:hover .product-thumb img {
  transform: scale(1.04);
}
.product-name {
  text-align: center;
  font-size: 14px;
  color: #333;
  padding: 18px 10px;
}
.product-card:hover .product-name {
  color: #c8161d;
}

/* ===== 产品详情页 ===== */
.pdetail-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: #333;
  margin-bottom: 40px;
}
.pdetail-figure {
  text-align: center;
}
.pdetail-figure img {
  max-width: 760px;
  width: 100%;
  height: auto;
  display: inline-block;
}
.pdetail-divider {
  width: 64px;
  height: 4px;
  background-color: #999;
  border-radius: 2px;
  margin: 28px auto 0;
}
.pdetail-desc {
  max-width: 1000px;
  margin: 36px auto 0;
}
.pdetail-desc p {
  font-size: 14px;
  color: #444;
  line-height: 2;
  text-align: justify;
}
.pdetail-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 60px;
  padding-top: 24px;
  border-top: 1px solid #eee;
  font-size: 14px;
}
.pdetail-prev,
.pdetail-next {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #666;
  transition: color .2s;
}
.pdetail-prev .arrow,
.pdetail-next .arrow {
  color: #999;
  font-size: 17px;
}
a.pdetail-next:hover { color: #c8161d; }
a.pdetail-next:hover .arrow { color: #c8161d; }
.pdetail-prev.is-disabled { color: #999; }

/* ===== 关于我们内页 ===== */
.about-page {
  display: flex;
  gap: 60px;
  align-items: flex-start;
}
.about-aside {
  flex: 0 0 300px;
  max-width: 300px;
}
.aside-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 28px;
}
.aside-qr img {
  width: 230px;
  height: 230px;
  object-fit: contain;
}
.aside-qr-text {
  margin-top: 10px;
  font-size: 13px;
  color: #666;
}
.aside-contact li {
  padding: 9px 0;
  font-size: 14px;
  color: #333;
  line-height: 1.6;
}
.aside-contact strong {
  font-weight: 700;
  color: #222;
}

.about-main { flex: 1 1 auto; min-width: 0; }
.about-page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #eee;
  padding-bottom: 18px;
  margin-bottom: 36px;
}
.about-page-title {
  position: relative;
  padding-left: 16px;
  font-size: 20px;
  font-weight: 700;
  color: #222;
}
.about-page-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background-color: #c8161d;
}
.breadcrumb {
  font-size: 13px;
  color: #999;
  display: flex;
  align-items: center;
  gap: 10px;
}
.breadcrumb a { color: #999; }
.breadcrumb a:hover { color: #c8161d; }
.breadcrumb .sep { color: #ccc; }
.breadcrumb .current { color: #c8161d; }

.about-honor {
  text-align: center;
  margin: 0 auto 30px;
}
.about-honor img {
  max-width: 700px;
  width: 100%;
  height: auto;
}
.about-slogan {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: #222;
  letter-spacing: 1px;
}
.about-slogan-sub {
  text-align: center;
  font-size: 17px;
  font-weight: 700;
  color: #222;
  margin-top: 10px;
  margin-bottom: 36px;
}
.about-desc p {
  font-size: 14px;
  color: #333;
  line-height: 2;
  margin-bottom: 18px;
  text-align: justify;
}

/* ===== 最新动态列表页 ===== */
.news-page-list { margin-top: 8px; }
.news-page-list li {
  border-bottom: 1px dashed #ddd;
}
.news-page-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px 22px 18px;
  position: relative;
  color: #333;
}
.news-page-list a::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background-color: #999;
}
.news-page-title {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-page-date {
  flex: 0 0 auto;
  font-size: 14px;
  color: #aaa;
}
.news-page-list a:hover .news-page-title { color: #c8161d; }
.news-page-list a:hover::before { background-color: #c8161d; }

/* 分页 */
.pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: 44px;
}
.pager-btn,
.pager-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 16px;
  border: 1px solid #ddd;
  background-color: #fff;
  color: #666;
  font-size: 13px;
  border-radius: 3px;
}
.pager-num.is-active {
  background-color: #f3f3f3;
  border-color: #ccc;
  color: #333;
}
.pager-btn.is-disabled {
  color: #ccc;
  cursor: not-allowed;
}
a.pager-btn:hover,
a.pager-num:hover {
  border-color: #c8161d;
  color: #c8161d;
}

/* ===== 备案指南页 ===== */
.guide-title {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  color: #222;
  letter-spacing: 8px;
  margin-bottom: 34px;
}
.guide-h1 {
  font-size: 15px;
  color: #333;
  margin: 18px 0 14px;
}
.guide-h2 {
  font-size: 14px;
  color: #333;
  margin: 14px 0 12px;
}
.guide-list {
  list-style: none;
  counter-reset: guide;
  padding-left: 44px;
  margin-bottom: 8px;
}
.guide-list li {
  counter-increment: guide;
  position: relative;
  padding: 8px 0;
  font-size: 14px;
  color: #444;
  line-height: 1.7;
}
.guide-list li::before {
  content: counter(guide) "、";
  position: absolute;
  left: -28px;
  color: #444;
}

/* ===== 新闻详情页 ===== */
.article-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: #333;
  line-height: 1.5;
  margin-bottom: 24px;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  padding-bottom: 26px;
  margin-bottom: 30px;
  border-bottom: 1px solid #eee;
  color: #999;
  font-size: 13px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-date { line-height: 1.5; }
.article-meta svg { width: 18px; height: 18px; }
.article-fav { cursor: pointer; transition: color .2s; }
.article-fav:hover { color: #c8161d; }

.article-lead {
  text-align: center;
  font-size: 20px;
  font-weight: 700;
  color: #c8161d;
  line-height: 1.5;
  margin-bottom: 24px;
}
.article-body p {
  font-size: 14px;
  color: #333;
  line-height: 2;
  margin-bottom: 16px;
  text-align: justify;
}
.article-subtitle {
  font-size: 15px;
  font-weight: 700;
  color: #222;
  margin: 22px 0 14px;
}
.article-nav {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #eee;
}
.article-back {
  display: inline-block;
  padding: 10px 26px;
  border: 1px solid #ddd;
  border-radius: 3px;
  font-size: 13px;
  color: #666;
  transition: border-color .2s, color .2s;
}
.article-back:hover { border-color: #c8161d; color: #c8161d; }

/* ===== 响应式 ===== */

/* 笔记本/小桌面：容器自适应，收紧大间距与侧栏宽度 */
@media (max-width: 1199px) {
  .container { width: 100%; }
  .page { gap: 36px; }
  .about-page { gap: 40px; }
  .contact-side { flex-basis: 230px; }
  .about-aside { flex-basis: 260px; max-width: 260px; }
  .aside-qr img { width: 200px; height: 200px; }
  .map-box { height: 420px; }
  .pd-item { width: 210px; }
}

/* 平板：汉堡导航 + 主体单列堆叠 */
@media (max-width: 992px) {
  /* 页头 */
  .header-inner { height: auto; flex-direction: column; gap: 14px; padding: 18px 0; text-align: center; }
  .header-services { align-items: center; }

  /* 导航汉堡化 */
  .nav-inner { flex-wrap: wrap; }
  .nav-toggle { display: flex; }
  .main-nav a {
    display: none;
    width: 100%;
    flex: none;
    min-width: 0;
    height: 48px;
    justify-content: flex-start;
    padding: 0 8px;
    font-size: 15px;
    border-top: 1px solid rgba(255,255,255,.18);
  }
  .main-nav.is-open a { display: flex; }
  .main-nav a + a::before { display: none; }

  /* 主体布局堆叠 */
  .page { flex-direction: column; gap: 32px; padding-top: 32px; padding-bottom: 44px; }
  .contact-side { flex: 1 1 auto; width: 100%; max-width: none; }
  .about-page { flex-direction: column; gap: 28px; }
  .about-aside { flex: 1 1 auto; max-width: none; width: 100%; }
  .aside-qr img, .qr-box img { width: 180px; height: 180px; }

  /* 堆叠后联系信息分两列更紧凑 */
  .aside-contact, .contact-info {
    columns: 2;
    column-gap: 32px;
  }
  .aside-contact li, .contact-info li { break-inside: avoid; }

  /* 产品分类改为横向标签 */
  .cat-head { text-align: center; margin-bottom: 16px; }
  .cat-list { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
  .cat-list li { border-bottom: none; }
  .cat-list a {
    padding: 8px 16px;
    border: 1px solid #eee;
    border-radius: 4px;
    font-size: 13px;
  }
  .cat-list a:hover, .cat-list a.active {
    padding-left: 16px;
    border-color: #e6b8ba;
  }

  /* 区块与标题收紧 */
  .section-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .block { padding: 44px 0; }
  .map-box { height: 360px; }

  /* 跑马灯 / 网格 */
  .pd-item { width: 200px; }
  .pd-title .en { font-size: 24px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }

  /* 关于首页四列 → 两列 */
  .about-cols { flex-wrap: wrap; gap: 32px; }
  .about-col { flex: 1 1 calc(50% - 16px); }
  .about-circle { width: 130px; height: 130px; }
}

/* 大手机 / 竖屏平板 */
@media (max-width: 768px) {
  .pd-marquee { padding: 0 40px; }
  .pd-title-row { gap: 16px; }
  .pd-title .en { font-size: 22px; }
  .about-page-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .about-slogan { font-size: 18px; }
  .about-slogan-sub { font-size: 15px; }
  .article-title { font-size: 20px; }
  .article-lead { font-size: 17px; }
  .article-meta { gap: 24px; flex-wrap: wrap; }
  .pdetail-title { font-size: 20px; }
  .guide-title { font-size: 18px; letter-spacing: 4px; }
}

/* 手机端 */
@media (max-width: 600px) {
  .container { padding: 0 14px; }
  .brand-logo { height: 60px; }
  .header-services { font-size: 14px; gap: 8px; }
  .hero-dots { bottom: 8px; }
  .hero-dot { width: 8px; height: 8px; }

  .aside-contact, .contact-info { columns: 1; }

  .pd-item { width: 150px; }
  .pd-title .en { font-size: 18px; letter-spacing: 1px; }
  .pd-title .cn { font-size: 14px; }
  .pd-marquee { padding: 0 30px; }
  .pd-arrow { width: 34px; height: 34px; font-size: 28px; }

  .block { padding: 32px 0; }
  .block-title { margin-bottom: 24px; }
  .block-title .cn { font-size: 18px; }

  .about-col { flex: 1 1 100%; }
  .about-circle { width: 120px; height: 120px; }

  .pager { gap: 6px; flex-wrap: wrap; }
  .pager-btn, .pager-num { min-width: 38px; height: 38px; padding: 0 10px; font-size: 12px; }
  .guide-list { padding-left: 30px; }
  .guide-list li::before { left: -24px; }
  .article-meta { gap: 16px; font-size: 12px; }
  .pdetail-nav { font-size: 13px; gap: 12px; }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; gap: 16px; }
  .qr-box img, .aside-qr img { width: 160px; height: 160px; }
  .pd-item { width: 132px; }
  .pd-item .name { font-size: 13px; }
  .news-page-list a { padding: 16px 2px 16px 14px; gap: 10px; }
  .news-page-date { font-size: 12px; }
  .pdetail-nav { flex-direction: column; align-items: flex-start; gap: 8px; }
  .about-page-title { font-size: 18px; }
}