/* ========== Fonts ========== */
@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS_Sans_SC_Light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS_Sans_SC_Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS_Sans_SC_Medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS_Sans_SC_Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Barlow";
  src: url("../fonts/Barlow-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
/* Gotham Medium 未入库时，用 Barlow Bold 近似英文标题 */
@font-face {
  font-family: "Gotham Medium";
  src: url("../fonts/Barlow-Bold.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ========== Variables ========== */
:root {
  --primary: #002c87;
  --primary-dark: #001f63;
  --primary-light: #1a4bb8;
  --text: #1a1a1a;
  --text-secondary: #666666;
  --text-muted: #999999;
  --bg: #ffffff;
  --bg-gray: #f5f7fa;
  --border: #e8e8e8;
  /* 蓝湖 1920 稿：1 设计像素 = min(视口, 1920) / 1920，1520 屏约 0.79 倍 */
  --design-w: 1920;
  --px: calc(min(100vw, 1920px) / 1920);
  /* 全站内容区宽 1770（1920 稿左右各约 75） */
  --container: calc(1770 * var(--px));
  --header-h: calc(140 * var(--px));
  --font: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-en: "Barlow", "HarmonyOS Sans SC", sans-serif;
  --shadow: 0 calc(8 * var(--px)) calc(30 * var(--px)) rgba(0, 44, 135, 0.08);
  --radius: calc(8 * var(--px));
  --transition: 0.3s ease;
}

/* ========== Reset ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: calc(16 * var(--px));
}
body {
  font-family: var(--font);
  font-weight: 400;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}
body[data-header="blue"] {
  padding-top: var(--header-h);
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}
ul,
ol {
  list-style: none;
}
button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}
input,
textarea,
select {
  font-family: inherit;
  outline: none;
}

/* ========== Typography helpers ========== */
.fw-light { font-weight: 300; }
.fw-regular { font-weight: 400; }
.fw-medium { font-weight: 500; }
.fw-bold { font-weight: 700; }
.en { font-family: var(--font-en); }

/* ========== Layout ========== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
}
.section {
  padding: calc(80 * var(--px)) 0;
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: calc(48 * var(--px));
}
.section-title {
  font-size: calc(32 * var(--px));
  font-weight: 500;
  color: var(--text);
  line-height: 1.3;
}
.section-more {
  font-size: calc(14 * var(--px));
  font-weight: 400;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: calc(6 * var(--px));
}
.section-more:hover {
  opacity: 0.75;
}
.section-more svg {
  width: calc(14 * var(--px));
  height: calc(14 * var(--px));
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(8 * var(--px));
  height: calc(44 * var(--px));
  padding: 0 calc(28 * var(--px));
  border-radius: calc(4 * var(--px));
  font-size: calc(14 * var(--px));
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-light);
}
.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: #f0f4ff;
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border: calc(1 * var(--px)) solid rgba(255, 255, 255, 0.8);
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: calc(1 * var(--px)) solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}
.btn-pill {
  border-radius: calc(22 * var(--px));
}

/* ========== Circle nav arrows ========== */
.circle-nav {
  display: flex;
  gap: calc(12 * var(--px));
}
.circle-btn {
  width: calc(40 * var(--px));
  height: calc(40 * var(--px));
  border-radius: 50%;
  border: calc(1 * var(--px)) solid var(--primary);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  background: #fff;
}
.circle-btn:hover {
  background: var(--primary);
  color: #fff;
}
.circle-btn svg {
  width: calc(16 * var(--px));
  height: calc(16 * var(--px));
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.is-scrolled,
.site-header.is-solid,
.site-header.nav-open {
  background: #fff;
  box-shadow: 0 calc(2 * var(--px)) calc(16 * var(--px)) rgba(0, 0, 0, 0.06);
}
.site-header.menu-open {
  background: #fff;
  /* box-shadow: 0 calc(2 * var(--px)) calc(16 * var(--px)) rgba(0, 0, 0, 0.06); */
}
.site-header.is-blue {
  background: var(--primary);
  box-shadow: none;
}
.site-header.is-blue .header-inner,
.site-header.is-blue .nav-link,
.site-header.is-blue .header-search,
.site-header.is-blue .lang-switch,
.site-header.is-blue .logo-text {
  color: #fff;
}
.site-header.is-blue .logo-mark {
  filter: brightness(0) invert(1);
}
.site-header.is-blue .btn-contact {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.site-header.is-blue .btn-contact:hover {
  background: #f0f4ff;
}
.site-header.is-blue .nav-link::after,
.site-header.is-blue .nav-item:hover .nav-link::after,
.site-header.is-blue .nav-item.has-open .nav-link::after {
  background: #fff;
}
.site-header.is-blue.menu-open,
.site-header.is-blue.nav-open {
  background: #fff;
  box-shadow: 0 calc(2 * var(--px)) calc(16 * var(--px)) rgba(0, 0, 0, 0.06);
}
.site-header.is-blue.menu-open .header-inner,
.site-header.is-blue.menu-open .nav-link,
.site-header.is-blue.menu-open .header-search,
.site-header.is-blue.menu-open .lang-switch,
.site-header.is-blue.menu-open .logo-text,
.site-header.is-blue.nav-open .header-inner,
.site-header.is-blue.nav-open .nav-link,
.site-header.is-blue.nav-open .header-search,
.site-header.is-blue.nav-open .lang-switch,
.site-header.is-blue.nav-open .logo-text {
  color: var(--text);
}
.site-header.is-blue.menu-open .logo-text,
.site-header.is-blue.nav-open .logo-text {
  color: var(--primary);
}
.site-header.is-blue.menu-open .logo-mark,
.site-header.is-blue.nav-open .logo-mark {
  filter: none;
}
.site-header.is-blue.menu-open .btn-contact,
.site-header.is-blue.nav-open .btn-contact {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.site-header.is-blue.menu-open .nav-link::after,
.site-header.is-blue.nav-open .nav-link::after {
  background: var(--primary);
}
.site-header.is-scrolled .header-inner,
.site-header.is-solid .header-inner,
.site-header.menu-open .header-inner,
.site-header.nav-open .header-inner {
  color: var(--text);
}
.site-header.is-scrolled .logo-text,
.site-header.is-solid .logo-text,
.site-header.menu-open .logo-text,
.site-header.nav-open .logo-text {
  color: var(--primary);
}
.site-header.is-scrolled .logo-mark,
.site-header.is-solid .logo-mark,
.site-header.menu-open .logo-mark,
.site-header.nav-open .logo-mark {
  filter: none;
}
.site-header.is-scrolled .nav-link,
.site-header.is-solid .nav-link,
.site-header.menu-open .nav-link {
  color: var(--text);
}
.site-header.is-scrolled .header-search,
.site-header.is-solid .header-search,
.site-header.menu-open .header-search,
.site-header.nav-open .header-search,
.site-header.is-scrolled .lang-switch,
.site-header.is-solid .lang-switch,
.site-header.menu-open .lang-switch,
.site-header.nav-open .lang-switch {
  color: var(--text);
}
.site-header.is-scrolled .btn-contact,
.site-header.is-solid .btn-contact,
.site-header.menu-open .btn-contact,
.site-header.nav-open .btn-contact {
  background: var(--primary);
  color: #fff;
}

/* 顶栏内容区与页面同宽 1770，左右各约 75 */
.header-inner {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  height: 100%;
  padding: 0;
  position: relative;
  color: #fff;
  display: flex;
  align-items: center;
  box-sizing: border-box;
}

/* Logo：图标 + 文案；英文副标题较长，宽度随内容，避免 Rosedale China 折行 */
.logo {
  position: relative;
  width: auto;
  min-width: calc(197 * var(--px));
  height: auto;
  min-height: calc(50 * var(--px));
  display: flex;
  align-items: center;
  gap: calc(10 * var(--px));
  flex-shrink: 0;
  z-index: 2;
  box-sizing: border-box;
}
.logo-mark {
  width: calc(50 * var(--px));
  height: calc(50 * var(--px));
  flex-shrink: 0;
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: filter var(--transition);
}
.site-header.is-scrolled .logo-mark,
.site-header.is-solid .logo-mark,
.site-header.menu-open .logo-mark,
.site-header.nav-open .logo-mark {
  filter: none;
}
.logo-text {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 700;
  letter-spacing: calc(0.5 * var(--px));
  line-height: 1.15;
  color: #fff;
  transition: color var(--transition);
  min-width: 0;
  white-space: nowrap;
}
.logo-text span {
  display: block;
  font-size: max(15px, calc(12 * var(--px)));
  font-weight: 700;
  opacity: 0.9;
  margin-top: calc(1 * var(--px));
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  white-space: nowrap;
}

/* 导航宽 684，距 Logo 56 */
.nav {
  position: relative;
  margin-left: calc(56 * var(--px));
  width: calc(684 * var(--px));
  height: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0;
  flex-shrink: 0;
  z-index: 2;
}
.nav-item {
  position: relative;
  height: auto;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.nav-link {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
  padding: 0;
  position: relative;
  transition: color var(--transition);
  display: inline-flex;
  align-items: center;
  gap: calc(4 * var(--px));
  white-space: nowrap;
  text-align: left;
  font-style: normal;
  text-transform: none;
  letter-spacing: 0;
}
.nav-caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: calc(10 * var(--px));
  height: calc(16 * var(--px));
  line-height: 1;
  flex-shrink: 0;
  opacity: 0.95;
}
.nav-caret svg {
  display: block;
  width: calc(10 * var(--px));
  height: calc(14 * var(--px));
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: calc(-63 * var(--px));
  width: 100%;
  height: calc(2 * var(--px));
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-item:hover .nav-link::after,
.nav-item.has-open .nav-link::after {
  transform: scaleX(1);
}
.site-header:not(.is-scrolled):not(.is-solid):not(.is-blue):not(.menu-open) .nav-item:hover .nav-link::after,
.site-header:not(.is-scrolled):not(.is-solid):not(.is-blue):not(.menu-open) .nav-item.has-open .nav-link::after {
  background: #fff;
}

/* 右侧操作区：顶栏 1770 内容区右对齐 */
.header-actions {
  position: relative;
  margin-left: auto;
  height: calc(40 * var(--px));
  display: flex;
  align-items: center;
  gap: calc(24 * var(--px));
  flex-shrink: 0;
  z-index: 2;
}
.header-search {
  display: inline-flex;
  align-items: center;
  gap: calc(6 * var(--px));
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #ffffff;
  transition: color var(--transition), opacity var(--transition);
  white-space: nowrap;
}
.header-search:hover {
  opacity: 0.8;
}
.header-icon-img {
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}
.header-icon-search {
  width: calc(16 * var(--px));
  height: calc(16 * var(--px));
}
.header-icon-phone {
  width: calc(14 * var(--px));
  height: calc(14 * var(--px));
}
/* 白底顶栏时，白色图标转黑 */
.site-header.is-scrolled .header-search .header-icon-img,
.site-header.is-solid .header-search .header-icon-img,
.site-header.menu-open .header-search .header-icon-img,
.site-header.nav-open .header-search .header-icon-img {
  filter: brightness(0);
}
/* 蓝底顶栏时联系按钮变白底，图标转品牌蓝 */
.site-header.is-blue .btn-contact .header-icon-img {
  filter: brightness(0) saturate(100%) invert(13%) sepia(98%) saturate(4200%) hue-rotate(227deg) brightness(0.7);
}
.site-header.is-blue.menu-open .btn-contact .header-icon-img {
  filter: none;
}
.btn-contact {
  width: calc(140 * var(--px));
  height: calc(40 * var(--px));
  min-width: calc(112 * var(--px));
  min-height: calc(32 * var(--px));
  padding: 0;
  border-radius: calc(999 * var(--px));
  background: var(--primary);
  border: calc(1 * var(--px)) solid transparent;
  color: #ffffff;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: calc(6 * var(--px));
  transition: all var(--transition);
  white-space: nowrap;
  box-sizing: border-box;
}
.btn-contact:hover {
  background: var(--primary-light);
  color: #ffffff;
}
.btn-contact .header-icon-phone {
  width: calc(14 * var(--px));
  height: calc(14 * var(--px));
  margin-right: calc(2 * var(--px));
}
.lang-switch {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(16 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #ffffff; /* Banner 透明顶栏 */
  display: inline-flex;
  align-items: center;
  gap: calc(4 * var(--px));
  transition: color var(--transition);
  white-space: nowrap;
}
.site-header.is-scrolled .lang-switch,
.site-header.is-solid .lang-switch,
.site-header.menu-open .lang-switch {
  color: #000000;
}
.lang-switch svg {
  width: calc(16 * var(--px));
  height: calc(16 * var(--px));
}
.lang-code {
  display: none;
}

/* ========== Mega Menu ========== */
.mega-menu {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: #fff;
  border-top: calc(1 * var(--px)) solid #e8eaef;
  box-shadow: 0 calc(16 * var(--px)) calc(40 * var(--px)) rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(calc(-8 * var(--px)));
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 999;
  color: var(--text);
}
.mega-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-inner {
  max-width: var(--container);
  width: 100%;
  margin: 0 auto;
  padding: calc(48 * var(--px)) 0 calc(56 * var(--px));
  /* 与一级「产品中心」左对齐：logo 197 + 间距 56 */
  padding-left: calc((197 + 56) * var(--px));
  display: grid;
  grid-template-columns: calc(200 * var(--px)) calc(360 * var(--px)) 1fr;
  gap: calc(48 * var(--px));
  min-height: calc(360 * var(--px));
  box-sizing: border-box;
  align-items: stretch;
}
.mega-cats {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-right: calc(1 * var(--px)) solid #e8eaef;
  padding-right: calc(32 * var(--px));
}
.mega-cat {
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  text-align: left;
  padding: calc(12 * var(--px)) 0 calc(5 * var(--px)); /* 文字与下划线间距 calc(5 * var(--px)) */
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(15px, calc(18 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  color: #000000;
  line-height: calc(28 * var(--px));
  border: none;
  border-radius: 0;
  position: relative;
  transition: color var(--transition);
  cursor: pointer;
  background: transparent;
}
.mega-cat::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(2 * var(--px));
  background: #aba7a72b;
  transition: background var(--transition);
}
.mega-cat:hover,
.mega-cat.is-active {
  background: transparent;
  color: #000f9e;
}
.mega-cat:hover::after,
.mega-cat.is-active::after {
  background: #000f9e;
}
.mega-visual {
  border-radius: calc(8 * var(--px));
  overflow: hidden;
  background: #f6f7f8;
  align-self: stretch;
}
.mega-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: calc(280 * var(--px));
  display: block;
}
.mega-detail {
  padding-top: calc(4 * var(--px));
}
.mega-detail h3 {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(18px, calc(24 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #111111;
  line-height: 1.3;
  margin: 0 0 calc(28 * var(--px));
}
.mega-detail p {
  font-size: max(13px, calc(15 * var(--px)));
  font-weight: 300;
  color: #666666;
  line-height: 1.8;
  margin-bottom: calc(24 * var(--px));
}
.mega-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: calc(40 * var(--px));
  row-gap: 0;
  margin-bottom: calc(28 * var(--px));
}
.mega-links a {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(16 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #333333;
  line-height: calc(40 * var(--px));
  position: relative;
  padding-left: calc(14 * var(--px));
}
.mega-links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: calc(4 * var(--px));
  height: calc(4 * var(--px));
  border-radius: 50%;
  background: #333333;
  transform: translateY(-50%);
}
.mega-links a:hover {
  color: #000f9e;
}
.mega-links a:hover::before {
  background: #000f9e;
}
.mega-more {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(15 * var(--px)));
  font-weight: 400;
  color: #000f9e;
  display: inline-flex;
  align-items: center;
  gap: calc(6 * var(--px));
  line-height: calc(26 * var(--px));
}
.mega-more svg {
  width: calc(14 * var(--px));
  height: calc(14 * var(--px));
  transform: rotate(-45deg);
  transform-origin: center;
  flex-shrink: 0;
}
.mega-more:hover {
  opacity: 0.75;
}

/* ========== Page Hero (inner pages，高度 900，文字对齐首页) ========== */
.page-hero {
  position: relative;
  height: calc(900 * var(--px));
  min-height: calc(420 * var(--px));
  display: flex;
  align-items: center;
  background: var(--primary-dark);
  color: #fff;
  margin-top: 0;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 20, 60, 0.72) 0%, rgba(0, 44, 135, 0.35) 55%, transparent 100%);
  z-index: 1;
  pointer-events: none;
}
.page-hero .slider-track {
  position: absolute;
  inset: 0;
  display: flex;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
}
.page-hero .slider-slide {
  min-width: 100%;
  height: 100%;
  background: center/cover no-repeat;
}
.page-hero .slider-dots {
  position: absolute;
  left: 50%;
  bottom: calc(40 * var(--px));
  transform: translateX(-50%);
  display: flex;
  gap: calc(10 * var(--px));
  z-index: 3;
}
.slider-dot {
  width: calc(8 * var(--px));
  height: calc(8 * var(--px));
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  transition: all var(--transition);
  padding: 0;
  border: none;
  cursor: pointer;
}
.slider-dot.is-active {
  background: #fff;
  width: calc(24 * var(--px));
  border-radius: calc(4 * var(--px));
}
.page-hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0;
  width: 100%;
  box-sizing: border-box;
  pointer-events: none;
}
.page-hero-content .container,
.page-hero-content a {
  pointer-events: auto;
}
/* 与首页 banner 文字左对齐：left 193 */
.page-hero-content .container {
  max-width: none;
  width: auto;
  margin: 0;
  padding: 0;
  padding-left: calc(193 * var(--px));
  padding-right: calc(75 * var(--px));
  box-sizing: border-box;
}
/* 面包屑：左跟页面内容区（container）对齐，底与轮播条同一水平线 */
.page-hero .breadcrumb,
.page-hero-crumb {
  position: absolute;
  left: calc((100% - var(--container)) / 2); /* 与 .container 左边缘对齐 */
  bottom: calc(40 * var(--px));
  z-index: 3;
  margin: 0;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(14 * var(--px)));
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1;
  pointer-events: auto;
}
.page-hero .crumb-sep,
.page-hero-crumb .crumb-sep,
.breadcrumb-bar .crumb-sep {
  display: inline-block;
  margin: 0 0.5em; /* > 左右边距 */
  color: inherit;
}
.page-hero .breadcrumb a:hover {
  color: #fff;
}
.page-hero-title {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(32px, calc(60 * var(--px)));
  font-weight: 500; /* HarmonyOS_Sans_SC_Medium，同首页 */
  font-style: normal;
  text-transform: none;
  text-align: left;
  line-height: calc(72 * var(--px));
  color: #ffffff;
  max-width: 100%;
  margin: 0 0 calc(41 * var(--px));
  letter-spacing: 0;
}
.page-hero-en {
  font-family: "Gotham Medium", "Gotham", "Barlow", "HarmonyOS Sans SC", sans-serif;
  font-size: max(14px, calc(24 * var(--px)));
  font-weight: 500; /* GothamMedium，同首页副文案 */
  font-style: normal;
  text-transform: none;
  text-align: left;
  letter-spacing: 0;
  color: #ffffff;
  -webkit-text-stroke: 0;
  margin: 0 0 calc(24 * var(--px));
  max-width: 100%;
  line-height: calc(32 * var(--px));
}
.page-hero-desc {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(24 * var(--px)));
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  text-align: left;
  max-width: calc(900 * var(--px));
  line-height: calc(36 * var(--px));
  color: #ffffff;
  margin: 0;
}

/* ========== Sub nav ========== */
.sub-nav {
  background: #fff;
  border-bottom: calc(1 * var(--px)) solid var(--border);
  position: sticky;
  top: var(--header-h);
  z-index: 50;
  /* 分类切换带 #subNav 时，锚点停在顶栏下方而不是被顶栏挡住 */
  scroll-margin-top: var(--header-h);
}
.sub-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: calc(56 * var(--px));
  gap: calc(24 * var(--px));
}
.sub-nav-list {
  display: flex;
  gap: calc(36 * var(--px));
  overflow-x: auto;
}
.sub-nav-list a {
  font-size: calc(15 * var(--px));
  font-weight: 400;
  color: var(--text-secondary);
  padding: calc(16 * var(--px)) 0;
  position: relative;
  white-space: nowrap;
}
.sub-nav-list a:hover,
.sub-nav-list a.is-active {
  color: var(--primary);
  font-weight: 500;
}
.sub-nav-list a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(2 * var(--px));
  background: var(--primary);
}
.sub-nav-meta {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(14 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #666666;
  flex-shrink: 0;
}
.sub-nav-meta-num {
  color: #000f9e;
}

/* ========== Product card ========== */
.product-card {
  width: calc(420 * var(--px));
  height: calc(582 * var(--px));
  background: #fff;
  border-radius: 0;
  overflow: hidden;
  border: none;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}
.product-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(calc(-4 * var(--px)));
}
.product-card-img {
  width: calc(420 * var(--px));
  height: calc(420 * var(--px));
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  padding: calc(36 * var(--px));
  box-sizing: border-box;
  flex-shrink: 0;
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.product-card-body {
  width: calc(420 * var(--px));
  height: calc(160 * var(--px));
  padding: calc(27 * var(--px)) calc(24 * var(--px));
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.product-card-title {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(16px, calc(20 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #111111;
  line-height: 1.3;
  margin: 0 0 calc(8 * var(--px));
}
.product-card-model {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(14 * var(--px)));
  font-weight: 400;
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #999999;
  line-height: 1.4;
  margin: 0 0 auto;
  border-bottom: calc(1 * var(--px)) solid #eeeeee;
  padding-bottom: calc(10 * var(--px));
}
/* 没有英文型号时不显示下划线 */
.product-card-model:empty {
  display: none;
  border-bottom: none;
  padding-bottom: 0;
  margin: 0;
}
.product-card-link {
  margin-top: auto;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(14 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000f9e;
  line-height: calc(26 * var(--px));
  display: inline-flex;
  align-items: center;
  gap: calc(4 * var(--px));
}
.product-card-link:hover {
  opacity: 0.75;
}

/* ========== Pagination ========== */
.pagination-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(16 * var(--px));
}
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: calc(8 * var(--px));
  margin-top: calc(76 * var(--px));
  list-style: none;
  padding: 0;
}
.pagination-wrap .pagination {
  margin-top: 0;
}
.pagination a,
.pagination span {
  width: calc(48 * var(--px));
  height: calc(48 * var(--px));
  min-width: calc(40 * var(--px));
  min-height: calc(40 * var(--px));
  background: #ffffff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(18 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: center;
  color: #000000;
  line-height: calc(26 * var(--px));
  transition: all var(--transition);
  box-sizing: border-box;
}
.pagination a:hover {
  color: #000f9e;
}
.pagination .is-active {
  background: var(--primary);
  color: #fff;
}
.pagination-arrow {
  color: #000000;
}
.pagination-arrow svg,
.pagination-prev svg,
.pagination-next svg {
  width: calc(16 * var(--px));
  height: calc(16 * var(--px));
  flex-shrink: 0;
  transform: none !important; /* 左右尖括号，不要斜向旋转 */
}
.pagination-arrow:hover {
  color: #000f9e;
}
.pagination-arrow.is-disabled {
  opacity: 0.35;
  pointer-events: none;
}
.pagination-ellipsis {
  background: transparent !important;
  color: #999999 !important;
}
/* 设计稿主分页不展示首页/末页文字链 */
.pagination-extra {
  display: none;
}

/* ========== Footer ========== */
.site-footer {
  background: #ffffff;
  min-height: calc(670 * var(--px));
  padding-top: calc(80 * var(--px));
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}
.site-footer > .container {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: calc(60 * var(--px));
  flex: 1;
  padding-bottom: calc(64 * var(--px));
}
.footer-brand {
  width: calc(320 * var(--px));
  flex-shrink: 0;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: calc(12 * var(--px));
  margin-bottom: calc(28 * var(--px));
  color: #000f9e;
  text-decoration: none;
}
.footer-logo-mark {
  width: calc(60 * var(--px));
  height: calc(60 * var(--px));
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}
.footer-logo-text {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(20 * var(--px)));
  font-weight: 700;
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000f9e;
  line-height: 1.15;
  letter-spacing: calc(0.5 * var(--px));
}
.footer-logo-text span {
  display: block;
  font-size: max(18px, calc(14 * var(--px)));
  font-weight: 700;
  margin-top: calc(2 * var(--px));
  letter-spacing: 0;
}
.footer-stats {
  display: flex;
  flex-direction: column;
  gap: calc(14 * var(--px));
}
.footer-stats li {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(18 * var(--px)));
  font-weight: 700; /* HarmonyOS_Sans_SC_Bold */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #333333;
  line-height: calc(32 * var(--px));
}
.footer-stats li,
.footer-stats .footer-stat-num {
  font-style: normal !important;
}
.footer-stats .footer-stat-num {
  font-weight: 700;
  margin-right: 0.15em;
}
.footer-nav {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: calc(90 * var(--px));
  max-width: calc(1100 * var(--px));
}
.footer-col h4 {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(17 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000000;
  line-height: 1.4;
  margin: 0 0 calc(20 * var(--px));
}
.footer-col a {
  display: block;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(13px, calc(15 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #666666;
  line-height: calc(36 * var(--px));
  margin: 0;
}
.footer-col a:hover {
  color: #000f9e;
}
.footer-bottom {
  border-top: calc(1 * var(--px)) solid #e8eaef;
  height: calc(105 * var(--px));
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: calc(24 * var(--px));
  flex-wrap: wrap;
  margin-top: auto;
  box-sizing: border-box;
}
.footer-bottom p {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(13 * var(--px)));
  font-weight: 400;
  color: #999999;
  line-height: 1.5;
  margin: 0;
}

/* ========== Reveal animation ========== */
.reveal {
  opacity: 0;
  transform: translateY(calc(40 * var(--px)));
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.from-left {
  transform: translateX(calc(-40 * var(--px)));
}
.reveal.from-right {
  transform: translateX(calc(40 * var(--px)));
}
.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ========== Breadcrumb (detail) ========== */
.breadcrumb-bar {
  background: #fafafc;
  padding: calc(16 * var(--px)) 0;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(12px, calc(14 * var(--px)));
  font-weight: 400; /* HarmonyOS_Sans_SC */
  font-style: normal;
  text-transform: none;
  text-align: left;
  color: #000000;
  line-height: calc(26 * var(--px));
}
.breadcrumb-bar a:hover {
  color: var(--primary);
}

/* ========== Image preview (certs etc.) ========== */
body.img-preview-open {
  overflow: hidden;
}
.img-preview {
  position: fixed;
  inset: 0;
  z-index: 4000;
  background: rgba(0, 0, 0, 0.72);
  display: none;
  align-items: center;
  justify-content: center;
  padding: calc(40 * var(--px));
  box-sizing: border-box;
}
.img-preview.is-open {
  display: flex;
}
.img-preview-panel {
  max-width: min(960px, 92vw);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: calc(16 * var(--px));
  position: relative;
  z-index: 1;
}
.img-preview-img {
  max-width: 100%;
  max-height: calc(80vh);
  width: auto;
  height: auto;
  object-fit: contain;
  background: #fff;
  border-radius: calc(8 * var(--px));
  box-shadow: 0 calc(12 * var(--px)) calc(40 * var(--px)) rgba(0, 0, 0, 0.35);
}
.img-preview-title {
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: max(14px, calc(16 * var(--px)));
  color: #ffffff;
  text-align: center;
  line-height: 1.4;
}
.img-preview-close {
  position: absolute;
  top: calc(20 * var(--px));
  right: calc(24 * var(--px));
  z-index: 2;
  width: calc(44 * var(--px));
  height: calc(44 * var(--px));
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
  font-size: calc(28 * var(--px));
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.img-preview-close:hover {
  background: rgba(255, 255, 255, 0.36);
}

/* ========== Utility ========== */
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.bg-gray { background: var(--bg-gray); }

/* ≤1200：不再死跟 1920 坐标，改为弹性排布 */
@media (max-width: 1200px) {
  :root {
    --px: 1px;
    --header-h: calc(100 * var(--px));
    --container: 100%;
  }
  .container { padding: 0 calc(24 * var(--px)); }
  .page-hero-content .container {
    padding-left: calc(24 * var(--px));
    padding-right: calc(24 * var(--px));
  }
  .page-hero .breadcrumb,
  .page-hero-crumb {
    left: calc(24 * var(--px));
    bottom: calc(24 * var(--px));
  }
  .page-hero .slider-dots {
    bottom: calc(24 * var(--px));
  }
  .header-inner {
    max-width: none;
    padding: 0 calc(24 * var(--px));
  }
  .logo,
  .nav,
  .header-actions {
    height: auto;
    width: auto;
  }
  .nav {
    flex: 1;
    max-width: none;
    justify-content: center;
    gap: calc(18 * var(--px));
    margin-left: calc(16 * var(--px));
    margin-right: calc(16 * var(--px));
  }
  .header-actions {
    margin-left: auto;
    gap: calc(12 * var(--px));
  }
  .header-search span { display: none; }
  .logo-mark {
    width: calc(36 * var(--px));
    height: calc(36 * var(--px));
  }
  .btn-contact {
    width: calc(140 * var(--px));
    height: calc(40 * var(--px));
    padding: 0;
  }
  .mega-inner { grid-template-columns: calc(180 * var(--px)) calc(280 * var(--px)) 1fr; gap: calc(24 * var(--px)); }
  .site-footer { min-height: 0; padding-top: calc(56 * var(--px)); }
  .footer-top { flex-direction: column; gap: calc(40 * var(--px)); }
  .footer-brand { width: 100%; }
  .footer-nav { max-width: none; grid-template-columns: repeat(3, 1fr); }
}
/* 汉堡按钮：桌面隐藏；窄屏独立贴顶栏最右，避免被操作区挤出 */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  margin: 0 0 0 4px;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-shrink: 0;
  z-index: 5;
  color: #fff;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.2s ease, background 0.2s ease;
}
.site-header.is-scrolled .nav-toggle,
.site-header.is-solid .nav-toggle,
.site-header.menu-open .nav-toggle,
.site-header.nav-open .nav-toggle {
  color: #111;
}
.site-header.is-blue .nav-toggle {
  color: #fff;
}
.site-header.is-blue.menu-open .nav-toggle,
.site-header.is-blue.nav-open .nav-toggle {
  color: #111;
}
.site-header.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}
.site-header.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.nav-backdrop {
  display: none;
}

/* 平板/手机：显示汉堡，收起顶栏文案，导航改抽屉 */
@media (max-width: 1024px) {
  body.nav-lock {
    overflow: hidden;
  }
  .nav-toggle {
    display: inline-flex !important;
    color: #111;
  }
  .site-header:not(.is-scrolled):not(.is-solid):not(.is-blue):not(.menu-open):not(.nav-open) .nav-toggle {
    color: #fff;
  }
  .header-inner {
    padding: 0 12px;
    gap: 8px;
    overflow: visible;
  }
  .logo {
    max-width: min(38vw, 150px);
    width: auto !important;
    min-width: 0;
    flex: 0 1 auto;
  }
  .logo-text {
    font-size: 14px;
  }
  .logo-text span {
    display: none;
  }
  .header-actions {
    gap: 0;
    margin-left: auto;
    margin-right: 2px;
    height: auto;
    min-width: 0;
    flex: 0 0 auto;
    align-items: center;
  }
  .header-search span {
    display: none;
  }
  /* 手机顶栏：搜索 / 电话 / 语言统一为轻量图标，去掉实心蓝底电话 */
  .header-search,
  .btn-contact,
  .lang-switch {
    height: 40px !important;
    margin: 0;
    justify-content: center;
    align-items: center;
    border-radius: 8px;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }
  .header-search,
  .btn-contact {
    width: 40px !important;
    min-width: 40px !important;
    padding: 0 !important;
    gap: 0 !important;
  }
  .lang-switch {
    width: auto !important;
    min-width: 40px !important;
    padding: 0 6px !important;
    gap: 4px !important;
  }
  .header-search .header-icon-img,
  .btn-contact .header-icon-img,
  .lang-switch svg {
    width: 20px !important;
    height: 20px !important;
    margin: 0 !important;
  }
  .btn-contact-text,
  .lang-switch-text {
    display: none !important;
  }
  .lang-code {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: 0.02em;
    color: inherit;
  }
  .site-header.is-scrolled .btn-contact .header-icon-img,
  .site-header.is-solid .btn-contact .header-icon-img,
  .site-header.menu-open .btn-contact .header-icon-img,
  .site-header.nav-open .btn-contact .header-icon-img,
  .site-header.is-blue.nav-open .btn-contact .header-icon-img,
  .site-header.is-blue.menu-open .btn-contact .header-icon-img {
    filter: brightness(0);
  }
  .site-header.is-blue:not(.is-scrolled):not(.menu-open):not(.nav-open) .btn-contact .header-icon-img {
    filter: none;
  }
  .site-header.nav-open .lang-switch,
  .site-header.is-blue.nav-open .lang-switch {
    color: #111;
  }
  .site-header.is-blue.nav-open .header-search .header-icon-img {
    filter: brightness(0);
  }
  .nav-toggle {
    width: 40px;
    height: 40px;
    margin-left: 0;
  }
  /* 窄屏避免 reveal 位移造成内容偏一侧 */
  .reveal,
  .reveal.from-left,
  .reveal.from-right {
    opacity: 1;
    transform: none;
  }
  .nav {
    display: flex;
    position: fixed;
    top: var(--header-h, 72px);
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 12px 0 32px;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: #fff;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 90;
  }
  .site-header.nav-open .nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
  .nav-item {
    width: 100%;
    border-bottom: 1px solid #f0f0f0;
    flex-direction: column;
    align-items: stretch;
  }
  .nav-link {
    width: 100%;
    padding: 16px 20px;
    color: #111 !important;
    font-size: 16px;
    justify-content: space-between;
    box-sizing: border-box;
  }
  .nav-link::after {
    display: none;
  }
  .nav-caret {
    transform: rotate(-90deg);
    opacity: 0.45;
    transition: transform 0.2s ease;
  }
  .nav-item.is-expanded > .nav-link .nav-caret {
    transform: rotate(0deg);
    opacity: 0.7;
  }
  .nav-sub {
    display: block;
    background: #f6f7f9;
    padding: 4px 0 10px;
    border-top: 1px solid #eee;
  }
  .nav-sub[hidden] {
    display: none !important;
  }
  .nav-sub-link,
  .nav-sub-more,
  .nav-sub-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 12px 20px 12px 32px;
    box-sizing: border-box;
    color: #333;
    font-size: 14px;
    line-height: 1.4;
    text-align: left;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
  }
  .nav-sub-link:active,
  .nav-sub-more:active,
  .nav-sub-toggle:active {
    background: #eceef2;
  }
  .nav-sub-more {
    color: var(--primary, #000f9e);
    font-weight: 500;
  }
  .nav-sub-hub {
    margin-top: 4px;
    border-top: 1px solid #e8e8e8;
    padding-top: 14px;
  }
  .nav-sub-toggle .nav-caret {
    transform: rotate(-90deg);
    opacity: 0.4;
    flex-shrink: 0;
  }
  .nav-sub-group.is-open > .nav-sub-toggle .nav-caret {
    transform: rotate(0deg);
    opacity: 0.7;
  }
  .nav-sub2 {
    background: #fff;
    padding: 2px 0 6px;
  }
  .nav-sub2[hidden] {
    display: none !important;
  }
  .nav-sub2 .nav-sub-link,
  .nav-sub2 .nav-sub-more {
    padding-left: 44px;
    font-size: 13px;
    color: #555;
  }
  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 80;
  }
  .nav-backdrop[hidden] {
    display: none;
  }
  .mega-menu {
    display: none !important;
  }
  .site-header {
    --header-h: 64px;
  }
  .site-header,
  .site-header .header-inner {
    height: var(--header-h);
  }
  .page-hero {
    height: min(420px, 62vh);
    min-height: 280px;
  }
  .page-hero-title {
    font-size: 28px;
    line-height: 1.3;
  }
  .page-hero-en {
    height: auto !important;
    margin: 8px 0 20px !important;
    font-size: 18px !important;
    line-height: 1.35 !important;
    -webkit-text-stroke: 0 !important;
    text-stroke: 0 !important;
  }
  .page-hero-desc {
    font-size: 14px;
    line-height: 1.65;
    max-width: none;
  }
  .page-hero-content .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .footer-top {
    gap: 28px;
  }
  .mega-inner {
    grid-template-columns: 1fr;
  }
  .mega-visual {
    display: none;
  }
  /* 区块标题 +「查看更多」手机改上下两行，避免并排挤断字 */
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 28px;
  }
  .section-title {
    font-size: 24px;
    max-width: 100%;
  }
  .section-more {
    white-space: nowrap;
  }
}