/* =========================
   芯灵光子 Opteryx 官网样式
   响应式单页网站 · 极简科技美学
   ========================= */

/* CSS 变量 — 基于 VI 手册：电光紫为点睛色，数字蓝/青色为辅助色，大面积留白 */
:root {
  --primary: #750168;
  --primary-dark: #54014a;
  --primary-light: #f3e5f1;
  --secondary: #00b8b8;
  --secondary-dark: #008f8f;
  --secondary-light: #e6fafa;

  --dark: #0b1120;
  --dark-2: #151c2c;
  --dark-3: #1e2738;
  --text: #111827;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --bg: #ffffff;
  --bg-alt: #f7f8fa;
  --border: rgba(0, 0, 0, 0.06);
  --border-light: rgba(0, 0, 0, 0.04);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.12);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --header-h: 76px;
  --transition: 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* 全站强制浅色主题：忽略系统深色模式，防止浏览器/微信 WebView 自动反色白底图片 */
:root { color-scheme: only light; }
html { color-scheme: only light; }

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--primary-dark);
}

.container {
  width: min(1220px, 92%);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--text);
  color: #fff;
  box-shadow: 0 8px 24px rgba(11, 17, 32, 0.22);
}

.btn-primary:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 12px 32px rgba(117, 1, 104, 0.32);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(6px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.8);
}

/* 顶部导航 */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-light);
  height: var(--header-h);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 4px 24px rgba(11, 17, 32, 0.06);
}

/* 首页导航 — 与浅色封面图保持一致，使用常规白底样式 */
.home-page .site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border-light);
}

.home-page .site-header .logo-mark {
  filter: none;
}

.home-page .site-header .nav-list a,
.home-page .site-header .nav-btn {
  color: var(--text);
}

.home-page .site-header .nav-btn .arrow {
  color: var(--text-muted);
}

.home-page .site-header .nav-list a:hover,
.home-page .site-header .nav-btn:hover {
  background: var(--bg-alt);
}

.home-page .site-header .nav-btn:hover .arrow {
  color: var(--primary);
}

.home-page .site-header .mobile-menu-toggle span {
  background: var(--text);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
}

.logo-mark {
  width: auto;
  height: 44px;
  object-fit: contain;
  transition: transform var(--transition);
}

.logo:hover .logo-mark {
  transform: scale(1.03);
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-list > li {
  position: relative;
}

.nav-list a,
.nav-btn {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition), color var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
  background: var(--bg-alt);
  color: var(--primary);
  font-weight: 600;
}

.nav-btn:hover,
.nav-btn.active,
.nav-list a.nav-btn:hover,
.nav-list a.nav-btn.active {
  background: var(--bg-alt);
  color: var(--text);
  font-weight: 500;
}

.nav-btn:hover .arrow,
.nav-btn.active .arrow,
.nav-list a.nav-btn:hover .arrow,
.nav-list a.nav-btn.active .arrow {
  color: var(--primary);
}

.nav-btn .arrow {
  display: inline-block;
  font-size: 0;
  margin-left: 6px;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  color: var(--text-muted);
  vertical-align: middle;
  transition: transform var(--transition);
}

/* 顶部电话入口 */
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--border);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.94rem;
  white-space: nowrap;
  transition: color var(--transition);
}

.header-phone-number {
  white-space: nowrap;
}

:lang(de) .header-phone-hours,
:lang(en) .header-phone-hours,
:lang(ja) .header-phone-hours {
  display: none;
}

/* 日语/德语模式下电话号码显示 +86 国际区号 */
:lang(ja) .header-phone-number::before,
:lang(de) .header-phone-number::before {
  content: '+86 ';
}

:lang(ja) .support-phone .phone-number::before,
:lang(de) .support-phone .phone-number::before {
  content: '+86\A';
  white-space: pre;
}

/* 联系页电话：外语模式补回 +86（中文模式纯号码） */
:lang(ja) a.contact-value[href^="tel:"]::before,
:lang(de) a.contact-value[href^="tel:"]::before {
  content: '+86 ';
}

/* 英文模式：号码译文含换行符（+86 换行 400-612-0717），卡片内按换行拆两行 */
.support-phone .phone-number {
  white-space: pre-line;
}

.header-phone:hover {
  color: var(--primary);
}

.header-phone svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  flex-shrink: 0;
}

.header-phone-hours {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

@media (max-width: 1240px) {
  .nav-list {
    gap: 4px;
  }

  .nav-list a,
  .nav-btn {
    padding: 8px 10px;
    font-size: 0.88rem;
  }

  .header-phone-hours {
    display: none;
  }
}

@media (max-width: 1100px) {
  .header-phone {
    margin-left: 10px;
    padding-left: 10px;
  }

  .header-phone-number,
  .header-phone-hours {
    display: none;
  }

  .header-phone svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 992px) {
  .header-phone {
    display: none;
  }
}

/* 语言切换器 */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--border);
  font-size: 0.85rem;
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  padding: 5px 8px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.lang-btn:hover {
  color: var(--primary);
  background: rgba(117, 1, 104, 0.06);
}

.lang-btn.active {
  color: #fff;
  background: var(--primary);
}

.home-page .site-header .lang-btn {
  color: var(--text-secondary);
}

.home-page .site-header .lang-btn:hover {
  color: var(--primary);
  background: rgba(117, 1, 104, 0.06);
}

.home-page .site-header .lang-btn.active {
  color: #fff;
  background: var(--primary);
}

/* ===== 语言下拉框（中文 / 英语 / 日语 / 德语）===== */
.lang-label {
  display: inline-block;
  margin-right: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

.mobile-lang-switcher .lang-label {
  flex: 0 0 80px;
  width: 80px;
  margin: 0;
}

.lang-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  min-width: 88px;
  padding: 5px 24px 5px 10px;
  border: 1px solid var(--border, rgba(0, 0, 0, 0.12));
  border-radius: 6px;
  background-color: transparent;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8.5 2.5 5h7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.82rem;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}

.lang-select:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.lang-select:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.home-page .site-header .lang-select {
  color: var(--text-secondary);
}

.home-page .site-header .lang-select:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* 移动端语言下拉框 */
.mobile-lang-switcher .lang-select {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
}

@media (max-width: 1100px) {
  .lang-switcher {
    margin-left: 12px;
    padding-left: 12px;
  }
}

@media (max-width: 992px) {
  .lang-switcher {
    display: none;
  }
}

.mobile-lang-switcher {
  display: none;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  margin-top: 12px;
}

.mobile-lang-switcher .lang-btn {
  flex: 1;
  padding: 10px;
  font-size: 0.95rem;
}

@media (max-width: 992px) {
  .mobile-lang-switcher {
    display: flex;
  }
}

.has-dropdown:hover .arrow,
.has-dropdown:focus-within .arrow {
  transform: rotate(180deg);
}

/* 产品下拉菜单 */
.has-dropdown {
  position: relative;
  /* 加 padding-bottom 形成连接区，避免 hover 断开 */
  padding-bottom: 16px;
  margin-bottom: -16px;
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  min-width: 560px;
  background: rgba(255, 255, 255, 0.98);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 28px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
  border: 1px solid var(--border);
}

/* 透明连接桥：覆盖按钮与菜单之间的间隙，让 hover 不会断开 */
.mega-menu::before {
  content: "";
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  height: 16px;
  background: transparent;
}

.has-dropdown:hover .mega-menu,
.has-dropdown:focus-within .mega-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0s;
}

.menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.menu-col-group {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.menu-col h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1.6px;
  color: var(--primary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}

.menu-col ul {
  list-style: none;
}

.menu-col li a {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  border-radius: 0;
  background: none;
  display: block;
  transition: color var(--transition), padding-left var(--transition);
}

.menu-col li a:hover {
  color: var(--primary);
  background: none;
  padding-left: 6px;
}

/* 产品下拉：工业自动化传感器列默认折叠，hover/聚焦展开为下拉 */
.menu-col h3 a {
  color: inherit;
  text-decoration: none;
}

/* 抵消 .nav-list a 对标题内链接的影响，保持与其他列标题一致 */
.sensor-trigger a {
  display: inline;
  padding: 0;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  text-transform: inherit;
  letter-spacing: inherit;
  background: none;
  border-radius: 0;
}

.sensor-trigger a:hover,
.sensor-trigger a:focus {
  background: none;
  color: var(--primary);
  font-weight: inherit;
  padding: 0;
}

.sensor-trigger::after {
  content: none;
}

.sensor-col .sensor-flyout {
  display: block;
  margin-top: 2px;
}

/* 移动端菜单开关 */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* 移动端导航 */
.mobile-nav {
  position: fixed;
  inset: var(--header-h) 0 0 0;
  background: rgba(255, 255, 255, 0.98);
  z-index: 999;
  padding: 24px;
  transform: translateX(100%);
  transition: transform var(--transition);
  overflow-y: auto;
}

.mobile-nav[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-nav ul {
  list-style: none;
}

.mobile-nav a,
.mobile-dropdown-toggle {
  display: block;
  padding: 14px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}

.mobile-dropdown-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-dropdown-toggle span {
  transition: transform var(--transition);
}

.mobile-dropdown-toggle[aria-expanded="true"] span {
  transform: rotate(180deg);
}

.mobile-product-menu {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.mobile-product-category h3 {
  margin: 18px 0 4px;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 700;
}

.mobile-product-category a {
  padding: 10px 0;
  border-bottom: none;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.mobile-submenu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition), padding var(--transition);
}

.mobile-submenu[aria-hidden="false"] {
  max-height: 600px;
  padding: 12px 0 18px;
}

.mobile-submenu h4 {
  grid-column: 1 / -1;
  font-size: 0.95rem;
  color: var(--primary);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}

.mobile-submenu a {
  font-size: 0.95rem;
  padding: 8px 0;
  border-bottom: none;
  color: var(--text-muted);
}

/* =========================
   首页 Hero — 产品展台封面
   ========================= */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero-cover {
  background: #f4f6f8;
  align-items: center;
  justify-content: center;
}

.hero-cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, #f4f6f8 100%);
  z-index: 2;
}

.hero-cover-inner {
  width: 100%;
  height: calc(100dvh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0;
  position: relative;
  overflow: hidden;
}

.hero-cover-inner img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  animation: heroZoom 18s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.04);
  }
}

/* 封面浮动装饰 */
.hero-cover-decoration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

.hero-cover-decoration::before,
.hero-cover-decoration::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: heroGlow 12s ease-in-out infinite alternate;
}

.hero-cover-decoration::before {
  width: 360px;
  height: 360px;
  background: rgba(117, 1, 104, 0.18);
  top: 15%;
  left: -120px;
}

.hero-cover-decoration::after {
  width: 280px;
  height: 280px;
  background: rgba(0, 184, 184, 0.14);
  bottom: 10%;
  right: -80px;
  animation-delay: -6s;
}

@keyframes heroGlow {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 0.3;
  }
  100% {
    transform: translate(30px, -20px) scale(1.1);
    opacity: 0.45;
  }
}

/* 向下滚动提示 */
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 32px;
  z-index: 3;
  transform: translateX(-50%);
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 14px;
  display: grid;
  place-items: start center;
  padding-top: 8px;
  transition: border-color var(--transition);
}

.hero-scroll:hover {
  border-color: rgba(255, 255, 255, 0.85);
}

.hero-scroll.hero-scroll-dark {
  border-color: rgba(0, 0, 0, 0.25);
}

.hero-scroll.hero-scroll-dark:hover {
  border-color: rgba(0, 0, 0, 0.5);
}

.hero-scroll.hero-scroll-dark span {
  background: rgba(0, 0, 0, 0.5);
}

.hero-scroll span {
  display: block;
  width: 4px;
  height: 10px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.8);
  animation: scrollBounce 1.8s infinite;
}

@keyframes scrollBounce {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.8;
  }
  50% {
    transform: translateY(10px);
    opacity: 0.3;
  }
}

.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeInUp 0.9s var(--transition) forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* =========================
   首页 Hero 4.0 — 真实产品展台背景
   ========================= */
.hero-cover-v2 {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: linear-gradient(180deg, #f4f6f9 0%, #eef2f6 50%, #e8edf2 100%);
}

/* 全屏产品背景层 */
.hero-bg-products {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

/* 产品展台底座 */
.hero-bg-products::before {
  content: "";
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -15%;
  height: 70%;
  background:
    radial-gradient(ellipse 80% 60% at 50% 100%, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.4) 50%, transparent 80%),
    radial-gradient(ellipse 90% 50% at 50% 90%, rgba(0, 0, 0, 0.03) 0%, transparent 60%);
  pointer-events: none;
}

.hero-product-float {
  position: absolute;
  background: transparent;
  border-radius: 18px;
  padding: 10px;
  box-shadow: none;
  animation: productFloat 8s ease-in-out infinite alternate;
  transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1), filter 0.5s ease;
}

.hero-product-float:hover {
  transform: translateY(-8px) scale(1.05) !important;
  filter: drop-shadow(0 16px 24px rgba(0, 0, 0, 0.12));
  z-index: 10;
}

.hero-product-float img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 10px;
  display: block;
}

/* 产品图错落定位（缩小尺寸，环绕文字分布） */
.product-01 { width: 170px; height: 130px; top: 16%; left: 6%; animation-delay: -0.5s; }
.product-02 { width: 130px; height: 100px; top: 10%; left: 26%; animation-delay: -1.2s; }
.product-03 { width: 150px; height: 115px; top: 22%; right: 8%; animation-delay: -2s; }
.product-04 { width: 120px; height: 95px; top: 12%; right: 28%; animation-delay: -0.8s; }
.product-05 { width: 140px; height: 110px; top: 42%; left: 3%; animation-delay: -1.5s; }
.product-06 { width: 110px; height: 85px; top: 50%; left: 20%; animation-delay: -2.5s; }
.product-07 { width: 160px; height: 125px; top: 44%; right: 5%; animation-delay: -1s; }
.product-08 { width: 125px; height: 95px; top: 52%; right: 24%; animation-delay: -3s; }
.product-09 { width: 145px; height: 110px; bottom: 20%; left: 10%; animation-delay: -0.3s; }
.product-10 { width: 115px; height: 90px; bottom: 26%; left: 28%; animation-delay: -1.8s; }
.product-11 { width: 135px; height: 105px; bottom: 18%; right: 12%; animation-delay: -2.2s; }
.product-12 { width: 100px; height: 78px; bottom: 30%; right: 30%; animation-delay: -0.6s; }
.product-13 { width: 155px; height: 120px; bottom: 10%; left: 42%; animation-delay: -1.3s; }
.product-14 { width: 105px; height: 82px; top: 30%; left: 15%; animation-delay: -2.8s; }
.product-15 { width: 130px; height: 100px; top: 32%; right: 16%; animation-delay: -0.9s; }
.product-16 { width: 95px; height: 72px; bottom: 14%; left: 24%; animation-delay: -1.6s; }
.product-17 { width: 120px; height: 92px; bottom: 12%; right: 25%; animation-delay: -2.4s; }

@keyframes productFloat {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  100% {
    transform: translateY(-10px) rotate(1.5deg);
  }
}

/* 渐变遮罩，确保文字可读 */
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 50% 45%, rgba(255, 255, 255, 0.78) 0%, rgba(255, 255, 255, 0.42) 45%, transparent 72%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(244, 246, 249, 0.9) 0%, transparent 65%);
}

/* 居中品牌内容 */
.hero-cover-v2-content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 80px 20px 120px;
  max-width: 900px;
  margin: 0 auto;
}

.hero-cover-v2-text {
  max-width: 720px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(117, 1, 104, 0.12);
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 28px;
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 0.2s;
  backdrop-filter: blur(8px);
}

.hero-title {
  font-size: clamp(2.8rem, 6.2vw, 5.6rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.12;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  opacity: 0;
  animation: fadeInUp 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 0.4s;
  text-shadow: 0 2px 30px rgba(255, 255, 255, 0.8);
}

.hero-title-line {
  display: block;
}

.hero-subtitle-en {
  font-size: clamp(0.85rem, 1.4vw, 1.05rem);
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeInUp 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 0.55s;
}

.hero-slogan {
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.22em;
  margin-bottom: 40px;
  opacity: 0;
  animation: fadeInUp 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 0.7s;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 0.9s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 0.9s;
}

/* 浅色描边按钮 */
.btn-outline-light {
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  border-color: rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(8px);
}

.btn-outline-light:hover {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}

/* 底部指示器 */
.hero-bottom-indicators {
  position: absolute;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
  opacity: 0;
  animation: fadeInUp 1s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation-delay: 1.1s;
}

.hero-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: default;
}

.hero-indicator-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(117, 1, 104, 0.12);
  animation: indicatorDotPulse 2.5s ease-in-out infinite;
}

.hero-indicator:nth-child(3) .hero-indicator-dot {
  animation-delay: 0.4s;
}

.hero-indicator:nth-child(5) .hero-indicator-dot {
  animation-delay: 0.8s;
}

@keyframes indicatorDotPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.25);
    opacity: 0.8;
  }
}

.hero-indicator-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.hero-indicator-label em {
  font-style: normal;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-left: 4px;
}

.hero-indicator-line {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(117, 1, 104, 0.35), transparent);
  animation: indicatorLinePulse 2s ease-in-out infinite;
}

@keyframes indicatorLinePulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

/* 动态光效层 */
.hero-light-effects {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

/* 浮动光晕 */
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.18;
  animation: heroGlowPulse 10s ease-in-out infinite alternate;
}

.hero-glow-1 {
  width: 360px;
  height: 360px;
  background: rgba(117, 1, 104, 0.3);
  top: 5%;
  left: -120px;
}

.hero-glow-2 {
  width: 280px;
  height: 280px;
  background: rgba(0, 184, 184, 0.22);
  bottom: 10%;
  right: 8%;
  animation-delay: -5s;
}

@keyframes heroGlowPulse {
  0% {
    transform: scale(1) translate(0, 0);
    opacity: 0.12;
  }
  100% {
    transform: scale(1.15) translate(20px, -15px);
    opacity: 0.22;
  }
}

/* 新版滚动提示 */
.hero-scroll-light {
  border-color: rgba(0, 0, 0, 0.25);
}

.hero-scroll-light:hover {
  border-color: rgba(0, 0, 0, 0.5);
}

.hero-scroll-light span {
  background: rgba(0, 0, 0, 0.45);
}

/* Hero VI 辅助图形装饰 */
.hero-cover-v2::before,
.hero-cover-v2::after {
  content: "";
  position: absolute;
  background-repeat: no-repeat;
  background-size: contain;
  pointer-events: none;
  z-index: 4;
  opacity: 0.12;
}

.hero-cover-v2::before {
  top: 16%;
  right: 4%;
  width: 100px;
  height: 100px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120'%3E%3Cg transform='translate(60,60)'%3E%3Ccircle r='18' fill='none' stroke='%2300b8b8' stroke-width='5'/%3E%3Cg stroke='%2300b8b8' stroke-width='5' stroke-linecap='round'%3E%3Cline y1='-30' y2='-54'/%3E%3Cline y1='-30' y2='-54' transform='rotate(45)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(90)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(135)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(180)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(225)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(270)'/%3E%3Cline y1='-30' y2='-54' transform='rotate(315)'/%3E%3Cline y1='-28' y2='-42' transform='rotate(22.5)'/%3E%3Cline y1='-28' y2='-42' transform='rotate(67.5)'/%3E%3Cline y1='-28' y2='-42' transform='rotate(112.5)'/%3E%3Cline y1='-28' y2='-42' transform='rotate(157.5)'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  animation: heroViFloat 8s ease-in-out infinite alternate;
}

.hero-cover-v2::after {
  bottom: 20%;
  left: 4%;
  width: 68px;
  height: 68px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect x='0' y='0' width='32' height='32' rx='4' fill='%23750168' opacity='0.5'/%3E%3Crect x='38' y='0' width='24' height='24' rx='3' fill='%2300b8b8' opacity='0.6'/%3E%3Crect x='0' y='38' width='24' height='24' rx='3' fill='%2300b8b8' opacity='0.4'/%3E%3Crect x='42' y='42' width='16' height='16' rx='3' fill='%23750168' opacity='0.3'/%3E%3C/svg%3E");
  animation: heroViFloat 8s ease-in-out infinite alternate-reverse;
}

@keyframes heroViFloat {
  0% {
    transform: translateY(0) rotate(0deg);
  }
  100% {
    transform: translateY(-10px) rotate(5deg);
  }
}

/* 通用区块 */
.section {
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.section > .container {
  position: relative;
  z-index: 1;
}

/* VI 辅助图形 — 大区域淡色装饰 */
.section::before,
.section::after {
  content: "";
  position: absolute;
  background-repeat: no-repeat;
  background-size: contain;
  pointer-events: none;
  opacity: 0.06;
  z-index: 0;
}

.section::before {
  right: -70px;
  bottom: -70px;
  width: 300px;
  height: 300px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cg fill='none' stroke='%23750168' stroke-linecap='round'%3E%3Ccircle cx='100' cy='100' r='75' stroke-width='6' opacity='0.14'/%3E%3Ccircle cx='100' cy='100' r='75' stroke-width='6' stroke-dasharray='360 120' opacity='0.22' transform='rotate(-90 100 100)'/%3E%3Ccircle cx='100' cy='100' r='52' stroke-width='5' opacity='0.1'/%3E%3Ccircle cx='100' cy='100' r='52' stroke-width='5' stroke-dasharray='240 90' opacity='0.18' transform='rotate(90 100 100)'/%3E%3Ccircle cx='100' cy='100' r='28' stroke='%2300b8b8' stroke-width='4' opacity='0.16'/%3E%3C/g%3E%3C/svg%3E");
}

.section::after {
  left: -24px;
  top: 70px;
  width: 100px;
  height: 100px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect x='0' y='0' width='32' height='32' rx='4' fill='%23750168' opacity='0.55'/%3E%3Crect x='38' y='0' width='24' height='24' rx='3' fill='%2300b8b8' opacity='0.7'/%3E%3Crect x='0' y='38' width='24' height='24' rx='3' fill='%2300b8b8' opacity='0.45'/%3E%3Crect x='42' y='42' width='16' height='16' rx='3' fill='%23750168' opacity='0.35'/%3E%3C/svg%3E");
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.section-header h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.section-header .section-en {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 0.78rem;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  font-weight: 700;
  white-space: nowrap;
}

.section-header .section-en::before,
.section-header .section-en::after {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--primary);
  opacity: 0.3;
  flex-shrink: 0;
}

/* VI 辅助图形装饰 — 紫色同心圆环 & 青色太阳放射线 */
.section-header::before,
.section-header::after {
  content: "";
  position: absolute;
  top: -22px;
  width: 120px;
  height: 120px;
  background-repeat: no-repeat;
  background-size: contain;
  pointer-events: none;
  opacity: 0.55;
  animation: viDecorFloat 7s ease-in-out infinite alternate;
}

.section-header::before {
  left: -14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%23750168' stroke-linecap='round'%3E%3Ccircle cx='60' cy='60' r='44' stroke-width='14' opacity='0.18'/%3E%3Ccircle cx='60' cy='60' r='44' stroke-width='14' stroke-dasharray='220 60' opacity='0.34' transform='rotate(-90 60 60)'/%3E%3Ccircle cx='60' cy='60' r='28' stroke-width='8' opacity='0.14'/%3E%3Ccircle cx='60' cy='60' r='28' stroke-width='8' stroke-dasharray='120 60' opacity='0.26' transform='rotate(90 60 60)'/%3E%3C/g%3E%3C/svg%3E");
  transform-origin: center;
}

.section-header::after {
  right: -14px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120'%3E%3Cg transform='translate(60,60)'%3E%3Ccircle r='18' fill='none' stroke='%2300b8b8' stroke-width='5'/%3E%3Cg stroke='%2300b8b8' stroke-width='5' stroke-linecap='round'%3E%3Cline y1='-30' y2='-56'/%3E%3Cline y1='-30' y2='-56' transform='rotate(45)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(90)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(135)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(180)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(225)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(270)'/%3E%3Cline y1='-30' y2='-56' transform='rotate(315)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(22.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(67.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(112.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(157.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(202.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(247.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(292.5)'/%3E%3Cline y1='-30' y2='-44' transform='rotate(337.5)'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  transform-origin: center;
  animation-delay: -3.5s;
}

@keyframes viDecorFloat {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.48;
  }
  100% {
    transform: translateY(-6px) rotate(2deg);
    opacity: 0.65;
  }
}

.section-header.light h2,
.section-header.light .section-en {
  color: #fff;
}

.section-header.light .section-en::before,
.section-header.light .section-en::after {
  background: #fff;
}

.section-alt {
  background: var(--bg-alt);
}

/* 公司介绍 */
.section-about {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.section-about::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background:
    radial-gradient(circle, transparent 30%, rgba(117, 1, 104, 0.04) 31%, rgba(117, 1, 104, 0.04) 33%, transparent 34%),
    radial-gradient(circle, transparent 45%, rgba(117, 1, 104, 0.04) 46%, rgba(117, 1, 104, 0.04) 48%, transparent 49%),
    radial-gradient(circle, transparent 60%, rgba(117, 1, 104, 0.04) 61%, rgba(117, 1, 104, 0.04) 63%, transparent 64%);
  border-radius: 50%;
  pointer-events: none;
}

.section-about::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 184, 184, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
}

.about-text p {
  margin-bottom: 18px;
  color: var(--text-secondary);
  font-size: clamp(0.98rem, 1.7vw, 1.08rem);
  line-height: 1.85;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background: var(--bg-alt);
}

.about-media img {
  width: 100%;
  height: 100%;
  min-height: 340px;
  max-height: 420px;
  object-fit: cover;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-media img {
    min-height: 260px;
    max-height: 340px;
  }
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.value-card {
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: left;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.value-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(117, 1, 104, 0.12);
}

.value-card .value-num {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
}

.value-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.value-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* 旧版 .about-grid / .about-stats 等已不再使用；
   如需恢复数据卡片，可在此补充样式。 */

/* 首页产品预览 */
.section-preview {
  background: var(--bg-alt);
  position: relative;
  overflow: hidden;
}

.section-preview::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(117, 1, 104, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 1120px;
  margin: 0 auto;
}

.preview-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.preview-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(117, 1, 104, 0.18);
}

.preview-card-featured {
  flex-direction: row;
  padding: 0;
  overflow: hidden;
  align-items: stretch;
}

.preview-card-featured .preview-visual {
  width: 42%;
  min-width: 200px;
  min-height: 220px;
  background: #f0f1f4;
  overflow: hidden;
  position: relative;
  align-self: stretch;
}

.preview-card-featured .preview-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.preview-card-featured:hover .preview-visual img {
  transform: scale(1.05);
}

.preview-card-featured .preview-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.preview-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 14px;
}

.preview-tags span {
  font-size: 0.75rem;
  background: var(--primary-light);
  color: var(--primary);
  padding: 5px 11px;
  border-radius: 999px;
  font-weight: 600;
}

.preview-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--secondary);
  margin-bottom: 8px;
}

.preview-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.preview-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

.preview-arrow {
  display: inline-flex;
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
}

.preview-card:hover .preview-arrow {
  color: var(--primary-dark);
}

.preview-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: background var(--transition), border-color var(--transition);
}

.preview-card:hover .preview-icon {
  background: var(--primary-light);
  border-color: rgba(117, 1, 104, 0.15);
}

.preview-icon svg {
  width: 26px;
  height: 26px;
  stroke: var(--primary);
  stroke-width: 2;
  fill: none;
}

.preview-card-more {
  border-style: dashed;
  background: transparent;
}

.preview-card-more:hover {
  background: var(--bg);
}

/* 产品 */
.section-products {
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.section-products::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(117, 1, 104, 0.14) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(0, 184, 184, 0.1) 0%, transparent 45%);
  pointer-events: none;
}

.product-category {
  margin-bottom: 80px;
  position: relative;
  z-index: 1;
}

.product-category:last-child {
  margin-bottom: 0;
}

.category-title {
  text-align: center;
  margin-bottom: 42px;
}

.category-title span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  padding: 10px 28px;
  border-radius: 999px;
  font-size: 1.15rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.category-title span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
}

/* OCT 系统入口卡片 */
.oct-intro-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}

.oct-intro-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: #fff;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.oct-intro-card:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25);
}

.oct-intro-visual {
  background: var(--bg);
  display: grid;
  place-items: center;
  overflow: hidden;
}

.oct-intro-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.oct-intro-card:hover .oct-intro-visual img {
  transform: scale(1.05);
}

.oct-intro-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.oct-intro-body h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}

.oct-intro-body p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.oct-intro-tag {
  display: inline-flex;
  font-size: 0.85rem;
  color: var(--secondary);
  font-weight: 600;
}

/* OCT 系统详情区块 */
.oct-detail {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 48px;
  margin-bottom: 40px;
  color: var(--text);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

.oct-detail:last-child {
  margin-bottom: 0;
}

.oct-detail-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.oct-title-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.oct-detail-dot {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--primary);
  flex-shrink: 0;
}

.oct-title-group h4 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.oct-title-group p {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

.oct-highlights {
  list-style: none;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.oct-highlights li {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--primary);
}

.oct-highlights li svg {
  flex-shrink: 0;
}

.oct-highlights li strong {
  display: block;
  font-size: 1.05rem;
  color: var(--text);
}

.oct-highlights li span {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* 熔深检测详情主体 */
.oct-detail-body {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.oct-media {
  display: grid;
  gap: 20px;
}

.oct-figure {
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  margin: 0;
}

.oct-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.oct-figure figcaption {
  padding: 12px 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  background: var(--bg);
  border-top: 1px solid var(--border);
  text-align: center;
}

.oct-desc p {
  color: var(--text-secondary);
  margin-bottom: 18px;
  line-height: 1.8;
  font-size: 0.98rem;
}

.oct-specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.oct-specs li {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.oct-specs li span {
  opacity: 0.85;
}

.oct-specs li strong {
  font-weight: 700;
  font-size: 1.05rem;
}

/* 技术优势 */
.oct-tech-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.oct-tech-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.oct-tech-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.oct-tech-item svg {
  flex-shrink: 0;
}

.oct-apps {
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 18px 22px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border-left: 4px solid var(--secondary);
}

.oct-apps strong {
  color: var(--text);
}

/* 三维引导详情 */
.oct-guidance-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

.oct-figure-lg {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.oct-figure-lg img {
  flex: 1;
  object-fit: contain;
  padding: 20px;
  background: var(--bg-alt);
}

.oct-guidance-principle {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
}

.oct-guidance-principle h5,
.oct-guidance-weakness h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.oct-guidance-principle h5::before,
.oct-guidance-weakness h5::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
}

.oct-guidance-principle p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 14px;
}

.oct-guidance-lead {
  margin-top: 18px;
  padding: 16px;
  background: #fff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  color: var(--text) !important;
}

.oct-guidance-lead strong {
  color: var(--primary);
}

.oct-guidance-weakness {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
}

.oct-guidance-weakness ol {
  list-style: none;
  counter-reset: weakness;
  display: grid;
  gap: 12px;
}

.oct-guidance-weakness li {
  position: relative;
  padding-left: 34px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.oct-guidance-weakness li::before {
  counter-increment: weakness;
  content: counter(weakness, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(117, 1, 104, 0.1);
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.oct-guidance-weakness li strong {
  color: var(--text);
}

.oct-guidance-stages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.oct-stage-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.oct-stage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.oct-stage-card h6 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.oct-stage-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* OCT 优势卡片（参考图 3 风格） */
.oct-advantage-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.oct-advantage-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.oct-advantage-large {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  min-height: 300px;
}

.oct-advantage-media {
  position: relative;
  background: var(--dark);
  overflow: hidden;
}

.oct-advantage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
}

.oct-advantage-overlay {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.oct-advantage-overlay strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.oct-advantage-overlay span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
}

.oct-advantage-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.oct-advantage-body h4 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}

.oct-advantage-body > p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 22px;
  letter-spacing: 0.04em;
}

.oct-advantage-body ul {
  list-style: none;
  display: grid;
  gap: 12px;
}

.oct-advantage-body li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.oct-advantage-body li svg {
  color: var(--primary);
  flex-shrink: 0;
}

.oct-advantage-dark {
  position: relative;
  background: #0a0612;
  display: grid;
  place-items: center;
  padding: 24px;
  min-height: 300px;
}

.oct-advantage-dark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
}

.oct-advantage-caption {
  position: absolute;
  left: 28px;
  top: 28px;
  color: #fff;
  z-index: 2;
}

.oct-advantage-caption span {
  display: block;
  font-size: 0.9rem;
  opacity: 0.75;
  margin-bottom: 4px;
}

.oct-advantage-caption strong {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
}

/* OCT 对比模块 */
.oct-comparison {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 48px;
}

.oct-comparison-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: var(--primary);
  color: #fff;
  padding: 16px 24px;
}

.oct-comparison-header h4 {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.oct-comparison-header svg {
  flex-shrink: 0;
}

.oct-comparison-body {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: center;
  padding: 32px;
}

.oct-compare-item {
  text-align: center;
  padding: 0 16px;
}

.oct-compare-visual {
  height: 160px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.oct-compare-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.oct-compare-item strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.oct-compare-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 360px;
  margin: 0 auto;
}

.oct-compare-win strong {
  color: var(--primary);
}

.oct-compare-win .oct-compare-visual {
  border-color: rgba(117, 1, 104, 0.25);
  box-shadow: 0 8px 24px rgba(117, 1, 104, 0.08);
}

.oct-compare-vs {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  padding: 0 12px;
}

/* 传感器网格 */
.sensor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.sensor-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 28px;
  color: #fff;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.sensor-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.2);
}

.sensor-card h4 {
  font-size: 1.12rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sensor-card h4::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
  flex-shrink: 0;
}

.sensor-card p {
  font-size: 0.9rem;
  opacity: 0.78;
  margin-bottom: 18px;
  line-height: 1.65;
}

.link-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--secondary);
  border-bottom: 1px solid rgba(0, 184, 184, 0.4);
  padding-bottom: 2px;
}

.link-more:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* 新闻 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.news-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--border);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-card time {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 1px;
}

.news-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  line-height: 1.45;
}

.news-card h3 a {
  color: var(--text);
}

.news-card h3 a:hover {
  color: var(--primary);
}

.news-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* 新闻时间轴列表 */
.news-timeline {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.news-timeline-scroll {
  max-height: min(72vh, 680px);
  overflow-y: auto;
  padding: 2px 14px 2px 2px;
  scrollbar-color: var(--primary) var(--border);
  scrollbar-width: thin;
  overscroll-behavior: contain;
}

.news-timeline-scroll::-webkit-scrollbar {
  width: 8px;
}

.news-timeline-scroll::-webkit-scrollbar-track {
  background: var(--border);
  border-radius: 4px;
}

.news-timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--primary);
  border: 2px solid var(--bg);
  border-radius: 4px;
}

.news-timeline-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  align-items: center;
  gap: 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.news-timeline-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.news-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--primary);
}

.news-date-day {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -1px;
}

.news-date-divider {
  width: 30px;
  height: 2px;
  background: var(--primary);
  margin: 8px 0;
  opacity: 0.5;
  border-radius: 1px;
}

.news-date-ym {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.news-timeline-item h3 {
  font-size: 1.1rem;
  line-height: 1.5;
  margin: 0;
}

.news-timeline-item h3 a {
  color: var(--text);
}

.news-timeline-item h3 a:hover {
  color: var(--primary);
}

.news-note {
  text-align: center;
  margin-top: 32px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* 招贤纳士页 — 公司信息 */
.company-info-section {
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fb 100%);
  border-bottom: 1px solid var(--border);
}

/* 关于页面 - 加大版 page-hero + 新增内容区样式 */
.page-hero.page-hero-lg {
  padding: calc(var(--header-h) + 96px) 0 96px;
  min-height: 460px;
}

.page-hero .page-hero-lead {
  margin-top: 28px;
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-muted);
  max-width: 880px;
  margin-left: auto;
  margin-right: auto;
}

.company-philosophy-section {
  background: #fff;
  padding: 80px 0;
}

.company-philosophy-body {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.company-slogan {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.company-slogan-en {
  font-size: 1rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.company-intro {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
  text-align: left;
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 40px;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
  margin: 14px auto 0;
}

.company-product-section {
  background: linear-gradient(180deg, #f8f9fb 0%, #ffffff 100%);
  padding: 80px 0;
}

.company-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
}

.company-product-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.company-product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.10);
}

.company-product-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.company-product-card p {
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.company-product-card .link-more {
  display: block;
  font-size: 0.92rem;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 6px;
  text-decoration: none;
}

.company-product-card .link-more:hover {
  text-decoration: underline;
}

.company-areas-section {
  background: #fff;
  padding: 80px 0;
}

.company-areas-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 880px;
}

.company-areas-list li {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text);
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
}

.company-areas-list li:last-child {
  border-bottom: none;
}

.company-areas-list strong {
  display: inline-block;
  min-width: 100px;
  color: var(--primary);
  font-weight: 700;
}

.company-contact-section {
  background: linear-gradient(180deg, #ffffff 0%, #f5f7fb 100%);
  padding: 80px 0;
}

.company-contact-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 760px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.company-contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  flex-wrap: wrap;
}

.company-contact-list .contact-label {
  min-width: 60px;
  color: var(--primary);
  font-weight: 600;
}

.company-contact-list .contact-value {
  color: var(--text);
  text-decoration: none;
}

.company-contact-list a.contact-value:hover {
  color: var(--primary);
  text-decoration: underline;
}

.company-contact-list .contact-note {
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.company-info-head {
  text-align: center;
  margin-bottom: 32px;
}

.company-info-head h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
}

.company-info-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.company-info-body {
  max-width: 860px;
  margin: 0 auto;
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text-secondary);
  text-align: left;
}

.company-info-body p {
  margin-bottom: 18px;
  text-indent: 2em;
}

.company-info-body p:last-child {
  margin-bottom: 0;
}

.company-info-body strong {
  color: var(--text);
  font-weight: 700;
}

@media (max-width: 768px) {
  .company-info-body {
    font-size: 1.1rem;
    text-align: left;
  }
}

/* 招贤纳士 — 浅色清新风格 */
.section-careers {
  background: var(--bg-alt);
  color: var(--text);
  position: relative;
  padding-top: 24px;
}

.careers-intro {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
  font-size: 1.08rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.job-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.job-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  color: var(--text);
  box-shadow: var(--shadow);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.job-card:hover {
  background: var(--bg);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(117, 1, 104, 0.15);
}

.job-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.job-header h4 {
  font-size: 1.35rem;
  margin-bottom: 8px;
  color: var(--text);
  font-weight: 800;
}

.job-salary {
  flex-shrink: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  padding: 6px 16px;
  border-radius: 999px;
}

.job-meta {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.job-summary {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
}

.job-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--primary);
  background: transparent;
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.job-toggle:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

.job-toggle[aria-expanded="true"] .job-toggle-icon {
  transform: rotate(180deg);
}

.job-toggle-icon {
  display: inline-block;
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.job-accordion {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.job-accordion.open {
  grid-template-rows: 1fr;
}

.job-accordion > .job-sections {
  overflow: hidden;
}

.job-sections {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  padding-top: 22px;
}

.job-sections h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 3px solid var(--primary);
}

.job-sections ul {
  list-style: none;
  display: grid;
  gap: 10px;
}

.job-sections li {
  position: relative;
  padding-left: 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.job-sections li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.careers-cta {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.careers-cta a {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 1px solid rgba(117, 1, 104, 0.3);
}

.careers-cta a:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

/* 紧凑区块（公司新闻等） */
.section-compact {
  padding: 72px 0 56px;
}

/* 页面 sticky footer：内容不足时让 footer 贴底 */
.page-sticky-footer {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-sticky-footer > * {
  flex-shrink: 0;
}

.page-sticky-footer > footer {
  margin-top: auto;
}

.page-sticky-footer .section-compact {
  flex: 1;
  display: flex;
  align-items: flex-start;
}

.page-sticky-footer .section-compact > .container {
  width: 100%;
}

/* 联系我们 */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 72px;
  align-items: center;
}

.contact-grid-form {
  align-items: stretch;
  gap: 56px;
}

.contact-info h3,
.contact-info-panel h3 {
  font-size: 1.7rem;
  color: var(--text);
  margin-bottom: 12px;
  font-weight: 800;
}

.contact-info-panel .contact-slogan {
  margin-bottom: 28px;
}

.contact-slogan {
  font-size: 1.15rem;
  color: var(--text);
  margin-bottom: 36px;
  font-weight: 500;
}

.contact-slogan span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 400;
}

.contact-list {
  list-style: none;
  display: grid;
  gap: 22px;
  margin-bottom: 32px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 18px;
}

.contact-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--bg);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--border);
}

.contact-list li:hover .contact-icon {
  transform: scale(1.06);
  box-shadow: var(--shadow-md);
}

.contact-list strong {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2px;
}

.contact-list a {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--text);
}

.contact-list a:hover {
  color: var(--primary);
}

.contact-tip {
  margin-top: 32px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.contact-qr {
  display: flex;
  justify-content: center;
}

.qr-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  border: 1px solid var(--border);
}

.qr-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.qr-card img {
  margin: 0 auto 14px;
  border-radius: 10px;
}

.sensor-category-cta {
  margin-top: 32px;
  text-align: center;
}

.qr-card-large img {
  width: 360px;
  height: 360px;
  max-width: 100%;
}

.contact-info-qr-only {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 40px;
}

.contact-info-qr-only .contact-info-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  width: 100%;
  max-width: 420px;
}

.contact-info-qr-only .qr-card {
  margin: 0;
}

.contact-info-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.contact-info-title span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 3px;
  margin-top: 4px;
}

.contact-info-qr-only .contact-list {
  margin-bottom: 0;
  gap: 16px;
}

.contact-info-qr-only .contact-list a,
.contact-info-qr-only .contact-address {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
}

.contact-info-qr-only .contact-list strong {
  font-size: 0.72rem;
}

.contact-info-qr-only .contact-icon {
  width: 46px;
  height: 46px;
  font-size: 1.1rem;
}

.contact-info-qr-only .contact-slogan {
  margin-bottom: 0;
  font-size: 1.2rem;
}

.qr-scan-text {
  color: var(--text);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-top: 18px;
}

.qr-scan-text strong {
  color: var(--text);
  font-weight: 700;
}

.qr-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.qr-card strong {
  color: var(--text);
}

/* 联系表单 */
.contact-form-panel {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-info-panel {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.contact-info-stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
}

.contact-info-stack .contact-info-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.qr-only-panel {
  align-items: center;
  justify-content: center;
  padding: 36px;
  min-height: 260px;
}

.qr-code-only-img {
  width: 260px;
  height: 260px;
  max-width: 100%;
  object-fit: contain;
  border-radius: 12px;
}

/* 社交二维码面板 */
/* 社交二维码面板：仅保留三个二维码，大小一致，清晰 */
.qr-social-panel {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 28px;
  gap: 18px;
  background: transparent;
  box-shadow: none;
  border: none;
}

.qr-social-row {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 18px;
  flex-wrap: wrap;
}

.qr-social-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.qr-social-item img {
  width: 110px;
  height: 110px;
  object-fit: contain;
  border-radius: 0;
  background: #fff;
  box-shadow: none;
  padding: 0;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

.qr-social-item span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.contact-details-panel {
  justify-content: flex-start;
  text-align: left;
  padding: 36px 32px;
}

.contact-details-panel .contact-slogan {
  margin-bottom: 24px;
  text-align: left;
}

.contact-details-panel .contact-info-section {
  width: 100%;
}

.contact-details-panel .contact-list {
  margin-bottom: 0;
  gap: 16px;
}

.contact-details-panel .contact-list li {
  justify-content: flex-start;
  text-align: left;
}

.contact-list .contact-meta {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.contact-list .contact-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  min-width: 3em;
  flex-shrink: 0;
}

.contact-list .contact-value,
.contact-list .contact-address {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

html:lang(zh) .contact-list .contact-address {
  white-space: nowrap;
}

@media (max-width: 768px) {
  .contact-list .contact-address {
    white-space: normal;
  }
}


.contact-email-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.contact-email-list .contact-value {
  word-break: break-all;
}

.inquiry-form {
  display: grid;
  gap: 28px;
}

.form-group {
  display: grid;
  gap: 12px;
}

.form-group label,
.form-label {
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text);
}

.required {
  color: var(--primary);
  font-weight: 600;
  margin-left: 4px;
}

.form-select {
  position: relative;
}

.form-select select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 44px 14px 16px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.form-select select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(117, 1, 104, 0.08);
}

.select-arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary);
  font-size: 0.9rem;
  pointer-events: none;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.form-checkbox input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox-mark {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 2px solid var(--border);
  background: var(--bg);
  display: grid;
  place-items: center;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
}

.checkbox-mark::after {
  content: "";
  width: 10px;
  height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
  transition: opacity var(--transition);
}

.form-checkbox input:checked + .checkbox-mark {
  background: var(--primary);
  border-color: var(--primary);
}

.form-checkbox input:checked + .checkbox-mark::after {
  opacity: 1;
}

.form-checkbox input:focus + .checkbox-mark {
  box-shadow: 0 0 0 3px rgba(117, 1, 104, 0.08);
}

.form-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
}

.form-tab {
  padding: 10px 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  font-family: inherit;
  margin-bottom: -1px;
}

.form-tab:hover {
  color: var(--primary);
}

.form-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

.form-tab-panels {
  padding-top: 16px;
}

.form-tab-panel label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.form-tab-panel input {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.form-tab-panel input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(117, 1, 104, 0.08);
}

.form-privacy {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.form-submit {
  width: 100%;
  justify-content: center;
}

.form-submit[disabled] {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-status {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.92rem;
  line-height: 1.6;
  text-align: center;
}

.form-status.is-error {
  background: #fdecec;
  border: 1px solid #f5c2c2;
  color: #b4232a;
}

.form-success {
  padding: 40px 24px;
  text-align: center;
}

.form-success-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(117, 1, 104, 0.1);
  color: var(--primary);
  font-size: 30px;
  font-weight: 700;
  line-height: 62px;
}

.form-success h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.form-success p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 22px;
}

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.65);
  padding: 56px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}

.footer-brand strong {
  color: #fff;
  font-size: 1.25rem;
}

.footer-brand p {
  font-size: 0.9rem;
  opacity: 0.75;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: #fff;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.7;
}

.footer-copy a {
  color: inherit;
  text-decoration: none;
}

.footer-copy a:hover {
  color: #fff;
  text-decoration: underline;
}

/* 返回顶部 */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg);
  color: var(--text);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition);
  z-index: 998;
  border: 1px solid var(--border);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary);
  color: #fff;
}

/* =========================
   多页面通用组件
   ========================= */

/* 次级页面标题区 */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 64px) 0 64px;
  background: linear-gradient(180deg, #ffffff 0%, #f5f7fb 100%);
  overflow: hidden;
}

/* 聚合页（company.html）#about 章节：
   - 与 #careers / #news 风格一致，按内容紧凑排列（不强制 100vh）
   - 保留 page-hero 类的装饰背景（紫色光晕）和默认 padding-top: header+64px
   - 通过锚点 #about 滚动到该区时，按 scroll-padding-top 自动避开固定头 */
.page-hero#about {
  /* 紧凑布局：继承 .page-hero 通用样式，去除 100vh 与垂直居中 */
}

.page-hero#about .container {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
}

/* 正文与标题间距拉开（48px），字号 1.4rem，首行缩进 2 字符、左对齐 */
.page-hero#about .company-info-body {
  max-width: 880px;
  margin: 48px auto 0;
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--text);
  text-align: left;
  text-indent: 2em;
}
.page-hero#about .company-info-body p {
  text-indent: 2em;
  margin-bottom: 0;
}


.page-hero::before {
  content: "";
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(0, 184, 184, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 90% 80%, rgba(117, 1, 104, 0.05) 0%, transparent 55%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
}

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

.breadcrumb span {
  color: var(--text-secondary);
  font-weight: 500;
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.page-hero .subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 2.5px;
  text-transform: uppercase;
  font-weight: 600;
}

/* 页面 hero 区强调文字（紫色、加粗、大字） */
.page-hero .hero-tagline {
  margin-top: 20px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

/* 产品中心 landing */
.product-landing-section {
  padding: 100px 0;
}

.product-landing-section.alt {
  background: var(--bg-alt);
}

.product-landing-header {
  text-align: center;
  margin-bottom: 56px;
}

.product-landing-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
}

.product-landing-header p {
  font-size: 0.82rem;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 700;
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.landing-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.landing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.landing-card-visual {
  background: var(--bg-alt);
  height: 220px;
  overflow: hidden;
  position: relative;
  border-radius: 12px;
}

/* 传感器区卡片视觉区背景统一 */
.product-landing-section.alt .landing-card-visual {
  background: #f4f6f8;
}

.landing-card-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

/* OCT 系统卡片视觉区放大，图片更突出 */
.landing-card-visual.oct-visual-lg {
  height: 300px;
}

.landing-card-visual.oct-visual-lg img {
  object-fit: contain;
  padding: 0 !important;
}

/* 透明底 PNG 产品封面图完整显示 */
.landing-card-visual img[src*="cover-"],
.landing-card-visual img[src*="special/"] {
  object-fit: contain;
  padding: 4px;
}

/* 白底产品卡视觉区，与数字光纤放大器卡片保持一致 */
.landing-card-visual.card-visual-white {
  background: #fff;
}

.landing-card-visual.card-visual-white img {
  object-fit: contain;
  padding: 12px;
}

.landing-card:hover .landing-card-visual img {
  transform: scale(1.05);
}

.landing-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.landing-card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.landing-card-body p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.65;
}

.landing-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.landing-card-tags span {
  font-size: 0.85rem;
  background: var(--primary);
  color: #fff;
  padding: 6px 12px;
  border-radius: 999px;
  font-weight: 600;
}

.landing-card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  margin-left: auto;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.landing-card-body .landing-card-arrow {
  align-self: flex-end;
}

.landing-card:hover .landing-card-arrow {
  color: var(--primary-dark);
}

/* 卡片内 PDF 目录下载链接 */
.landing-card-link {
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  flex: 1;
}

.landing-card-actions {
  padding: 0 24px 18px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.landing-card-actions .landing-card-arrow {
  margin-top: 0;
  margin-left: auto;
}

.pdf-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--primary-light);
  transition: background var(--transition), color var(--transition);
}

.pdf-link:hover {
  background: var(--primary);
  color: #fff;
}

.pdf-link svg {
  flex-shrink: 0;
}

/* 传感器详情页 */
.sensor-category-section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 140px;
}

.sensor-category-section:last-child {
  border-bottom: none;
}

.sensor-category-section.alt {
  background: var(--bg-alt);
}

.sensor-category-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.sensor-category-header span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

.sensor-category-header h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
}

.sensor-category-header p {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.sensor-intro {
  max-width: 760px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

/* 分类快速导航 */
.category-quick-nav {
  position: sticky;
  top: var(--header-h);
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.category-quick-nav ul {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  list-style: none;
  scrollbar-width: none;
}

.category-quick-nav ul::-webkit-scrollbar {
  display: none;
}

.category-quick-nav a {
  display: block;
  white-space: nowrap;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-alt);
  transition: background var(--transition), color var(--transition);
}

.category-quick-nav a:hover,
.category-quick-nav a.active {
  background: var(--primary);
  color: #fff;
}

/* 特殊用途传感器产品网格 */
.special-sensor-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}

.special-sensor-card {
  display: flex;
  flex-direction: column;
  flex: 0 0 320px;
  max-width: 360px;
  width: 100%;
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  color: inherit;
  text-decoration: none;
}

/* Paired layout for the two retained industrial sensor categories. */
.sensor-pair-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  width: 100%;
  padding: 48px max(4%, calc((100% - 1220px) / 2)) 64px;
  background: var(--bg-alt);
}

.sensor-retained-category {
  min-width: 0;
  padding: 0;
  background: transparent;
}

.sensor-retained-category .container {
  width: 100%;
}

@media (min-width: 861px) {
  .sensor-retained-category .sensor-intro {
    min-height: 7.2em;
  }
}

.sensor-retained-category .sensor-category-header {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr);
  align-items: start;
  column-gap: 14px;
  row-gap: 5px;
}

.sensor-retained-category .sensor-category-header span {
  grid-column: 1;
  grid-row: 1;
  align-self: center;
}

.sensor-retained-category .sensor-category-header h2 {
  grid-column: 2;
  grid-row: 1;
}

.sensor-retained-category .sensor-category-header p {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
}

.sensor-retained-category .special-sensor-grid {
  justify-content: stretch;
}

.sensor-retained-category .special-sensor-card {
  flex: 1 1 auto;
  flex-direction: row;
  align-items: stretch;
  max-width: none;
  min-height: 270px;
}

.sensor-retained-category .special-sensor-visual {
  flex: 0 0 40%;
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--border);
  border-bottom: 0;
}

.sensor-retained-category .special-sensor-visual img {
  width: 100%;
  max-height: 260px;
  padding: 16px;
}

.sensor-retained-category .special-sensor-body {
  flex: 1;
  align-self: center;
  padding: 22px;
}

.sensor-retained-category .special-sensor-body h3 {
  font-size: 1.05rem;
}

.sensor-retained-category .special-sensor-body p {
  font-size: 0.86rem;
  line-height: 1.65;
}

@media (max-width: 860px) {
  .sensor-pair-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .sensor-pair-grid {
    gap: 28px;
    padding: 32px 4% 44px;
  }

  .sensor-retained-category .special-sensor-card {
    flex-direction: column;
  }

  .sensor-retained-category .special-sensor-visual {
    flex: 0 0 auto;
    width: 100%;
    min-height: 190px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .sensor-retained-category .special-sensor-visual img {
    max-height: 200px;
  }
}

.special-sensor-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  color: inherit;
}

/* white product images: keep black products readable in mobile WebViews */
.special-sensor-visual,
.landing-card-visual.card-visual-white {
  color-scheme: only light;
  background: #fff !important;
}

.special-sensor-visual {
  min-height: 220px;
  height: auto;
  background: #ffffff;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.special-sensor-visual img {
  max-width: 100%;
  max-height: 220px;
  width: auto;
  height: auto;
  object-fit: contain;
  padding: 12px;
  transition: transform var(--transition);
}

/* 特殊传感器图左对齐 */
.special-sensor-visual.visual-align-left {
  place-items: center start;
}

.special-sensor-card:hover .special-sensor-visual img {
  transform: scale(1.04);
}

.special-sensor-body {
  padding: 20px;
}

.special-sensor-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.special-sensor-body .model {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 12px;
}

.special-sensor-body p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.special-sensor-specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.special-sensor-specs li {
  font-size: 0.78rem;
  background: var(--bg-alt);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 8px;
}

.special-sensor-specs li strong {
  color: var(--text);
  font-weight: 600;
}

.special-sensor-more {
  display: inline-flex;
  margin-top: 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--transition);
}

.special-sensor-card:hover .special-sensor-more {
  color: var(--primary-dark);
}

/* OCT 详情页微调 */
.page-oct-detail {
  padding: 64px 0;
}

.page-oct-detail.alt {
  background: var(--bg-alt);
}

/* ===== 新版 OCT 详情页（参考截图） ===== */
.oct-section {
  padding: 56px 0 72px;
}

.oct-section.alt {
  background: var(--bg-alt);
}

.oct-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.oct-section-title {
  display: flex;
  align-items: center;
  gap: 16px;
}

.oct-section-dot {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: var(--primary);
  flex-shrink: 0;
}

.oct-section-title h2 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.oct-section-title p {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 600;
}

.oct-section-logo {
  height: 44px;
  opacity: 0.85;
}

/* 顶部三功能 */
.oct-feature-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.oct-feature-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 22px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.oct-feature-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(117, 1, 104, 0.18);
}

.oct-feature-item svg {
  width: 32px;
  height: 32px;
  stroke: var(--primary);
  stroke-width: 1.8;
  fill: none;
  flex-shrink: 0;
}

.oct-feature-text strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 2px;
}

.oct-feature-text span {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 600;
}

/* 介绍段落 */
.oct-intro-text {
  max-width: 980px;
  margin: 0 auto 40px;
  text-align: center;
  color: var(--text-secondary);
  font-size: clamp(0.98rem, 1.8vw, 1.08rem);
  line-height: 1.85;
}

/* 三栏紧凑分栏（熔深检测页） */
.oct-split-layout {
  display: grid;
  grid-template-columns: 1.05fr 1fr 0.95fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 40px;
}

/* 横幅图 + 参数面板双栏布局 */
.oct-split-layout.oct-penetration-banner-grid {
  grid-template-columns: 1.65fr 0.8fr;
}

.oct-principle-banner {
  margin: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
  display: flex;
  align-items: center;
}

.oct-principle-banner img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.oct-media-stack {
  display: grid;
  gap: 16px;
}

.oct-media-stack figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.oct-media-stack figure img {
  width: 100%;
  height: auto;
  max-height: 180px;
  object-fit: contain;
  object-position: center;
  display: block;
  background: var(--bg-alt);
}

.oct-media-stack figcaption {
  padding: 10px 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.oct-desc-block {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.oct-desc-block h5,
.oct-specs-panel h5 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.oct-desc-block h5::before,
.oct-specs-panel h5::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
}

.oct-desc-block p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.85;
  margin-bottom: 14px;
}

.oct-desc-block p:last-child {
  margin-bottom: 0;
}

/* 右侧参数面板 */
.oct-specs-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.oct-specs-tags-vertical {
  list-style: none;
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 0;
}

/* 6+ 项时分两列（仅给多参数面板加） */
.oct-specs-tags-vertical.oct-specs-tags-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}

.oct-specs-tags-vertical.oct-specs-tags-two-col li {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 12px 16px;
}

.oct-specs-tags-vertical.oct-specs-tags-two-col li span {
  font-size: 0.78rem;
}

.oct-specs-tags-vertical.oct-specs-tags-two-col li strong {
  font-size: 1.05rem;
  line-height: 1.3;
}

.oct-specs-tags-vertical li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-alt);
  border-radius: 12px;
  border: 1px solid var(--border-light);
}

.oct-specs-tags-vertical li span {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.oct-specs-tags-vertical li strong {
  font-size: 1.05rem;
  color: var(--primary);
  font-weight: 700;
}

.oct-specs-divider {
  height: 1px;
  background: var(--border);
  margin-bottom: 24px;
}

.oct-advantage-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.oct-advantage-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.oct-advantage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--secondary);
}

/* 兼容旧版双排参数标签 */
.oct-specs-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.oct-specs-tags li {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.oct-specs-tags li strong {
  font-size: 1.05rem;
  font-weight: 700;
}

/* FBG 光纤产品图 */
.fbg-products-figure {
  margin: 0 0 36px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.fbg-products-figure img {
  width: 100%;
  height: auto;
  display: block;
  padding: 28px 24px 8px;
  background: #ffffff;
  object-fit: contain;
}

.fbg-products-figure figcaption {
  padding: 10px 24px 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: #fafbfc;
}

/* FBG 技术优势 + 应用方向双栏 */
.fbg-intro-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 36px;
}

.fbg-advantages-panel {
  margin-bottom: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

.fbg-advantages-panel h5 {
  margin-bottom: 16px;
}

.fbg-applications-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.fbg-applications-panel h5 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.fbg-applications-panel h5::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
}

.fbg-applications-img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  object-fit: contain;
}

.fbg-tech-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  flex: 1;
}

.fbg-tech-row .oct-tech-row-item {
  padding: 16px 12px;
  font-size: 0.9rem;
}

/* FBG 参数表图片 */
.fbg-specs-figure {
  margin: 36px 0 0;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.fbg-specs-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 24px;
  background: #ffffff;
}

.fbg-specs-row img {
  width: 100%;
  height: auto;
  display: block;
  background: #ffffff;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.fbg-specs-figure figcaption {
  padding: 14px 24px;
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: #fafbfc;
}

/* FBG 技术优势（仅展示加粗标题，竖向 1 列无外框） */
.fbg-advantage-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  counter-reset: fbgAdvantage;
}

.fbg-advantage-list li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 4px 0 4px 44px;
  background: transparent;
  border: none;
  border-radius: 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  counter-increment: fbgAdvantage;
}

.fbg-advantage-list li::before {
  content: counter(fbgAdvantage, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 50%;
  background: rgba(117, 1, 104, 0.1);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  flex: 0 0 auto;
}

.fbg-advantage-list li strong {
  display: inline;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 700;
}

/* FBG 第二个参数表（HTML 表格） */
.fbg-specs-html-figure {
  margin-top: 28px;
}

.fbg-specs-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin: 0 0 16px;
  letter-spacing: 0.5px;
  position: relative;
  padding-bottom: 10px;
}

.fbg-specs-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}

.fbg-specs-html-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  color: var(--text);
  background: #ffffff;
}

.fbg-specs-html-table thead th {
  background: var(--bg-alt);
  color: var(--text);
  font-weight: 700;
  text-align: center;
  padding: 14px 18px;
  border: 1px solid var(--border-light);
  font-size: 0.95rem;
}

.fbg-specs-html-table tbody td {
  padding: 14px 18px;
  border: 1px solid var(--border-light);
  text-align: center;
  color: var(--text-secondary);
}

.fbg-specs-html-table tbody td:nth-child(odd) {
  font-weight: 600;
  color: var(--text);
  background: #fafbfc;
}

.fbg-specs-html-table tbody tr:hover {
  background: rgba(117, 1, 104, 0.04);
}

/* 底部技术标签 */
.oct-tech-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.oct-tech-row-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.oct-tech-row-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(117, 1, 104, 0.2);
}

.oct-tech-row-item svg {
  width: 22px;
  height: 22px;
  stroke: var(--primary);
  stroke-width: 2;
  fill: none;
  flex-shrink: 0;
}

/* 三维引导顶部三栏 */
.oct-guidance-top-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 28px;
  margin-bottom: 36px;
}

/* 三维引导工作流 3 步骤 */
.oct-guidance-workflow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin: 0 0 36px;
}

.oct-guidance-step {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.oct-guidance-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 12px 12px 0 0;
}

.oct-guidance-step h5 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  margin: 6px 0 14px;
  letter-spacing: 0.5px;
}

.oct-guidance-step p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* 三维引导顶部横幅 + 弱点面板双栏 */
.oct-guidance-top-grid.oct-guidance-banner-grid {
  grid-template-columns: 1.65fr 0.8fr;
  align-items: stretch;
}

.oct-guidance-banner {
  margin: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.oct-guidance-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.oct-guidance-figure {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.oct-guidance-figure img {
  width: 100%;
  flex: 1;
  object-fit: contain;
  padding: 20px;
  background: var(--bg-alt);
}

.oct-guidance-figure figcaption {
  padding: 12px 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
}

.oct-guidance-panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  height: 100%;
}

.oct-guidance-panel h5 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.oct-guidance-panel h5::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--primary);
}

.oct-guidance-panel p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.oct-guidance-weakness-list {
  list-style: none;
  display: grid;
  gap: 10px;
  counter-reset: weakness;
}

.oct-guidance-weakness-list li {
  position: relative;
  padding-left: 38px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.oct-guidance-weakness-list li::before {
  counter-increment: weakness;
  content: counter(weakness, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(117, 1, 104, 0.1);
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.oct-guidance-weakness-list li strong {
  color: var(--text);
}

/* 底部三阶段 */
.oct-guidance-bottom-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.oct-guidance-stage {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.oct-guidance-stage:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.oct-guidance-stage h6 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.oct-guidance-stage p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 响应式 */
@media (max-width: 1100px) {
  .hero-cover-inner {
    padding: 20px 0;
  }
}

@media (max-width: 992px) {
  .main-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .product-visual {
    min-height: 220px;
  }

  .oct-intro-grid {
    grid-template-columns: 1fr;
  }

  .oct-intro-card {
    grid-template-columns: 140px 1fr;
  }

  .oct-detail-body,
  .oct-guidance-grid,
  .oct-guidance-stages,
  .oct-guidance-top-grid,
  .oct-guidance-bottom-grid {
    grid-template-columns: 1fr;
  }

  .oct-split-layout {
    grid-template-columns: 1fr;
  }

  .oct-guidance-workflow {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  /* 详情页横幅在窄屏下必须与参数面板上下排列。
     该选择器需要覆盖桌面端双栏规则的更高优先级。 */
  .oct-split-layout.oct-penetration-banner-grid,
  .oct-guidance-top-grid.oct-guidance-banner-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 22px;
  }

  .oct-principle-banner,
  .oct-guidance-banner,
  .oct-specs-panel {
    min-width: 0;
  }

  .oct-specs-panel {
    height: auto;
  }

  .oct-guidance-banner,
  .oct-guidance-banner img {
    height: auto;
  }

  .oct-media-compact {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .oct-media-compact figure img {
    max-height: 160px;
  }

  .oct-advantage-grid {
    grid-template-columns: 1fr;
  }

  .oct-feature-bar,
  .oct-tech-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .oct-section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .oct-section-logo {
    display: none;
  }

  .oct-advantage-large {
    grid-template-columns: 1fr 1fr;
  }

  .oct-comparison-body {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .oct-compare-vs {
    padding: 8px 0;
  }

  .oct-tech-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .oct-detail-header {
    flex-direction: column;
    gap: 24px;
  }

  .oct-highlights {
    width: 100%;
    justify-content: flex-start;
  }

  .sensor-category-header p {
    margin-left: 24px;
  }

  .special-sensor-grid {
    justify-content: center;
  }

  .about-values {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .value-card {
    padding: 28px 20px;
  }

  .preview-grid {
    grid-template-columns: 1fr;
  }

  .preview-card-featured {
    flex-direction: column;
  }

  .preview-card-featured .preview-visual {
    width: 100%;
    height: 180px;
  }

  .hero-bottom-indicators {
    gap: 12px;
    padding: 14px 24px;
  }

  .hero-indicator-line {
    width: 24px;
  }

  .hero-cover-v2-content {
    padding: 48px 24px 110px;
  }

  .hero-cover-v2-text {
    max-width: 520px;
  }

  .hero-product-float {
    opacity: 0.55;
  }

  .hero-product-float img {
    opacity: 0.8;
  }

  .product-01 { width: 130px; height: 100px; top: 12%; left: 4%; }
  .product-02 { width: 100px; height: 78px; top: 8%; left: 30%; }
  .product-03 { width: 120px; height: 92px; top: 14%; right: 5%; }
  .product-04 { width: 95px; height: 74px; top: 10%; right: 28%; }
  .product-05 { width: 115px; height: 88px; top: 38%; left: 2%; }
  .product-06 { width: 90px; height: 70px; top: 48%; left: 18%; }
  .product-07 { width: 130px; height: 100px; top: 40%; right: 3%; }
  .product-08 { width: 100px; height: 78px; top: 50%; right: 22%; }
  .product-09 { width: 115px; height: 88px; bottom: 18%; left: 6%; }
  .product-10 { width: 90px; height: 70px; bottom: 24%; left: 26%; }
  .product-11 { width: 110px; height: 85px; bottom: 16%; right: 7%; }
  .product-12 { width: 82px; height: 64px; bottom: 28%; right: 26%; }
  .product-13 { width: 125px; height: 96px; bottom: 8%; left: 40%; }
  .product-14 { width: 85px; height: 66px; top: 28%; left: 12%; }
  .product-15 { width: 105px; height: 82px; top: 30%; right: 14%; }
  .product-16 { width: 78px; height: 60px; bottom: 10%; left: 22%; }
  .product-17 { width: 95px; height: 74px; bottom: 10%; right: 23%; }

  .hero-cta {
    justify-content: center;
  }
}

@media (max-width: 640px) {
  :root {
    --header-h: 68px;
  }

  .section {
    padding: 80px 0;
  }

  .section-header h2,
  .section-header .section-en {
    white-space: normal;
  }

  .section-header::before,
  .section-header::after {
    width: 72px;
    height: 72px;
    opacity: 0.4;
  }

  .section-compact {
    padding: 56px 0 44px;
  }

  .hero-cover-v2::before,
  .hero-cover-v2::after {
    display: none;
  }

  .logo-mark {
    height: 38px;
  }

  .btn {
    width: min(260px, 100%);
  }

  .menu-grid {
    grid-template-columns: 1fr;
  }

  .mobile-submenu {
    grid-template-columns: 1fr;
  }

  .sensor-grid,
  .job-list,
  .news-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .job-header {
    flex-direction: column;
    gap: 12px;
  }

  .job-header h4 {
    font-size: 1.2rem;
  }

  .job-salary {
    font-size: 1rem;
    align-self: flex-start;
  }

  .job-sections {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .job-card {
    padding: 24px;
  }

  .oct-detail {
    padding: 28px 22px;
  }

  .oct-intro-card {
    grid-template-columns: 1fr;
  }

  .oct-intro-visual {
    min-height: 160px;
  }

  .oct-intro-visual img {
    object-fit: cover;
    max-height: 180px;
  }

  .fbg-products-figure img,
  .fbg-specs-figure img {
    padding: 14px;
  }

  .fbg-specs-row {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }

  .fbg-products-figure figcaption,
  .fbg-specs-figure figcaption {
    padding: 10px 16px 14px;
    font-size: 0.8rem;
  }

  .news-timeline-item {
    grid-template-columns: 90px 1fr;
    gap: 20px;
    padding: 20px 24px;
  }

  .news-date-day {
    font-size: 2rem;
  }

  .news-date-divider {
    width: 24px;
  }

  .news-timeline-item h3 {
    font-size: 1rem;
  }

  .oct-tech-features,
  .oct-feature-bar,
  .oct-tech-row {
    grid-template-columns: 1fr;
  }

  .oct-feature-item {
    justify-content: flex-start;
  }

  /* 手机端图片占满内容宽度，参数面板紧随其后，避免图片被挤成缩略图。 */
  .oct-split-layout.oct-penetration-banner-grid,
  .oct-guidance-top-grid.oct-guidance-banner-grid {
    gap: 18px;
    margin-bottom: 28px;
  }

  .oct-principle-banner img,
  .oct-guidance-banner img {
    width: 100%;
    height: auto;
    object-fit: contain;
  }

  .oct-specs-panel {
    padding: 22px 18px;
  }

  .oct-guidance-step {
    padding: 22px 18px 20px;
    text-align: left;
  }

  .oct-specs-panel h5 {
    margin-bottom: 14px;
  }

  .oct-specs-tags-vertical.oct-specs-tags-two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .oct-specs-tags-vertical.oct-specs-tags-two-col li {
    min-width: 0;
    padding: 12px 12px;
    gap: 5px;
  }

  .oct-specs-tags-vertical.oct-specs-tags-two-col li span {
    font-size: 0.76rem;
    line-height: 1.45;
    word-break: keep-all;
  }

  .oct-specs-tags-vertical.oct-specs-tags-two-col li strong {
    font-size: 0.98rem;
    line-height: 1.35;
    word-break: keep-all;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .hero-cta .btn {
    width: min(260px, 100%);
  }

  .hero-slogan {
    letter-spacing: 0.15em;
  }

  .hero-cover-v2-content {
    padding: 40px 20px 100px;
  }

  .hero-title {
    font-size: clamp(1.8rem, 8vw, 2.8rem);
    line-height: 1.18;
  }

  .hero-product-float {
    opacity: 0.45;
  }

  .product-01 { width: 95px; height: 74px; top: 10%; left: 3%; }
  .product-02 { width: 74px; height: 58px; top: 7%; left: 28%; }
  .product-03 { width: 88px; height: 68px; top: 12%; right: 4%; }
  .product-04 { width: 70px; height: 55px; top: 8%; right: 26%; }
  .product-05 { width: 84px; height: 65px; top: 36%; left: 2%; }
  .product-06 { width: 66px; height: 52px; top: 46%; left: 16%; }
  .product-07 { width: 95px; height: 74px; top: 38%; right: 2%; }
  .product-08 { width: 74px; height: 58px; top: 48%; right: 20%; }
  .product-09 { width: 86px; height: 66px; bottom: 16%; left: 4%; }
  .product-10 { width: 68px; height: 53px; bottom: 22%; left: 24%; }
  .product-11 { width: 82px; height: 64px; bottom: 15%; right: 5%; }
  .product-12 { width: 62px; height: 48px; bottom: 26%; right: 24%; }
  .product-13 { width: 92px; height: 71px; bottom: 6%; left: 38%; }
  .product-14 { width: 64px; height: 50px; top: 26%; left: 10%; }
  .product-15 { width: 78px; height: 60px; top: 28%; right: 12%; }
  .product-16 { width: 58px; height: 45px; bottom: 8%; left: 20%; }
  .product-17 { width: 70px; height: 55px; bottom: 8%; right: 21%; }

  .hero-bottom-indicators {
    display: none;
  }

  .oct-guidance-panel {
    padding: 22px;
  }

  .fbg-intro-grid {
    grid-template-columns: 1fr;
  }

  .fbg-tech-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .oct-guidance-stage {
    padding: 22px;
  }

  .oct-advantage-large {
    grid-template-columns: 1fr;
  }

  .oct-advantage-dark {
    min-height: 220px;
  }

  .oct-comparison-body {
    padding: 24px;
  }

  .oct-compare-visual {
    height: 140px;
  }

  .oct-specs li {
    width: 100%;
    justify-content: center;
  }

  .oct-highlights {
    flex-direction: column;
    gap: 14px;
  }

  .oct-title-group h4 {
    font-size: 1.35rem;
  }

  .footer-links {
    gap: 14px 20px;
  }

  .qr-card {
    padding: 26px;
  }

  .qr-card-large img {
    width: 280px;
    height: 280px;
  }

  .qr-scan-text {
    font-size: 1rem;
  }

  .contact-form-panel,
  .contact-info-panel {
    padding: 28px 22px;
  }

  .contact-info-stack {
    gap: 20px;
  }

  .qr-only-panel {
    min-height: auto;
    padding: 28px 22px;
  }

  .qr-code-only-img {
    width: 220px;
    height: 220px;
  }

  .qr-social-panel {
    padding: 28px 22px;
  }

  .qr-social-row {
    gap: 18px;
  }

  .qr-social-item img {
    width: 90px;
    height: 90px;
  }

  .qr-mascot img {
    max-width: 180px;
  }

  .contact-details-panel {
    padding: 28px 22px;
  }

  .contact-details-panel .contact-list li {
    gap: 14px;
  }

  .contact-info-title {
    font-size: 1.2rem;
    margin-bottom: 16px;
  }

  .form-tabs {
    gap: 4px;
  }

  .form-tab {
    padding: 10px 12px;
    font-size: 0.9rem;
  }

  .hero-cover-inner {
    padding: 16px 0;
  }

  .hero-scroll {
    display: none;
  }

  .about-story p {
    text-align: left;
    line-height: 1.85;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

  .value-card {
    text-align: center;
  }

  .value-card .value-num {
    margin-bottom: 14px;
  }

  .page-hero {
    padding: calc(var(--header-h) + 40px) 0 44px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
  }

  .landing-grid {
    grid-template-columns: 1fr;
  }

  .special-sensor-grid {
    justify-content: center;
  }

  .special-sensor-card {
    flex: 0 0 100%;
    max-width: none;
  }

  .special-sensor-visual {
    min-height: 200px;
    height: auto;
  }

  .special-sensor-visual img {
    max-height: 200px;
  }

  .category-quick-nav a {
    padding: 6px 12px;
    font-size: 0.8rem;
  }

  .sensor-category-header h2 {
    font-size: 1.35rem;
  }

  .sensor-category-header p {
    margin-left: 24px;
  }
}

/* =========================
   页面角花装饰 — VI 辅助图形
   紫色同心圆环 & 青色太阳放射线
   ========================= */
/* =========================
   VI 水印装饰（若隐若现）
   参考：大比例圆环/放射线/双方块/弧线花瓣
   固定于页面角落，透明度极低，不抢内容
   ========================= */
.vi-watermark {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  animation: viWmEnter 1.4s cubic-bezier(0.22, 0.61, 0.36, 1) 0.25s forwards;
}
.vi-watermark svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

/* 淡紫色大圆环 */
.vi-wm-ring {
  width: min(52vh, 52vw);
  height: min(52vh, 52vw);
  top: -18vh;
  right: -12vw;
}
.vi-wm-ring .ring-track {
  fill: none;
  stroke: #750168;
  stroke-width: 82;
  opacity: 0.075;
}
.vi-wm-ring .ring-core {
  fill: none;
  stroke: #00B8B8;
  stroke-width: 2;
  stroke-dasharray: 8 22;
  opacity: 0.14;
}

/* 青色放射线 */
.vi-wm-rays {
  width: min(34vh, 34vw);
  height: min(34vh, 34vw);
  top: -8vh;
  right: -9vw;
}
.vi-wm-rays line {
  stroke: #00B8B8;
  stroke-width: 2.2;
  stroke-linecap: round;
  opacity: 0.085;
}

/* 青色双方块 */
.vi-wm-squares {
  width: min(16vh, 16vw);
  height: min(16vh, 16vw);
  bottom: 20vh;
  left: 2vw;
}
.vi-wm-squares rect {
  fill: #00B8B8;
  opacity: 0.07;
}

/* 紫色弧线花瓣 */
.vi-wm-petal {
  width: min(42vh, 42vw);
  height: min(42vh, 42vw);
  bottom: -16vh;
  left: -12vw;
}
.vi-wm-petal .petal-fill {
  fill: #750168;
  opacity: 0.06;
}
.vi-wm-petal .petal-line {
  stroke: #750168;
  stroke-width: 2.4;
  stroke-linecap: round;
  opacity: 0.11;
}

/* 额外柔化变体 */
.vi-watermark.vi-wm-soft { filter: blur(0.5px); }

@keyframes viWmEnter {
  from { opacity: 0; transform: scale(0.92) rotate(-6deg); }
  to   { opacity: 1; transform: scale(1) rotate(0deg); }
}

@media (max-width: 768px) {
  .vi-wm-ring { width: 68vw; height: 68vw; top: -24vw; right: -22vw; }
  .vi-wm-rays { width: 48vw; height: 48vw; top: -14vw; right: -14vw; }
  .vi-wm-squares { width: 26vw; height: 26vw; bottom: 16vh; left: -4vw; }
  .vi-wm-petal { width: 58vw; height: 58vw; bottom: -24vw; left: -22vw; }

  .fbg-tech-row {
    grid-template-columns: 1fr;
  }
}
/* =========================
   首页单模块视图
   ========================= */
body.single-section-view .home-section {
  display: none;
}

body.single-section-view .home-section.is-active {
  display: block;
  animation: sectionFadeIn 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

body.single-section-view .home-section.is-active.hero {
  display: flex;
}

/* 单模块视图下仍保留页脚与返回顶部，避免页面下方空洞 */
body.single-section-view .site-footer {
  display: block;
}

body.single-section-view .section-about,
body.single-section-view .section-preview {
  min-height: calc(100vh - var(--header-h));
  padding-top: calc(var(--header-h) + 72px);
  padding-bottom: 100px;
}

body.single-section-view .hero {
  min-height: calc(100vh - var(--header-h));
}

@keyframes sectionFadeIn {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========== 服务页 ========== */
.page-hero-desc {
  margin-top: 28px;
  font-size: clamp(1.15rem, 2.6vw, 1.65rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 14px;
  background: linear-gradient(135deg, rgba(117, 1, 104, 0.08) 0%, rgba(0, 184, 184, 0.06) 100%);
  border: 1px solid rgba(117, 1, 104, 0.12);
  border-radius: 50px;
  padding: 14px 28px;
  box-shadow: 0 8px 24px rgba(117, 1, 104, 0.08);
}

.page-hero-desc .hero-desc-highlight {
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 6px 16px;
  border-radius: 50px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(117, 1, 104, 0.3);
}

.page-hero-desc .hero-desc-highlight svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .page-hero-desc {
    padding: 12px 20px;
    border-radius: 40px;
    gap: 8px 10px;
  }

  .page-hero-desc .hero-desc-highlight {
    padding: 5px 12px;
  }

  .page-hero-desc .hero-desc-highlight svg {
    width: 18px;
    height: 18px;
  }
}

.service-section {
  padding: 80px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  text-decoration: none;
  color: inherit;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.service-visual {
  background: linear-gradient(135deg, #f5f7fb 0%, #e9efff 100%);
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  position: relative;
  overflow: hidden;
}

.service-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(117, 1, 104, 0.08), transparent 50%),
              radial-gradient(circle at 70% 70%, rgba(0, 184, 184, 0.08), transparent 50%);
}

.service-visual svg {
  width: 80px;
  height: 80px;
  position: relative;
  z-index: 1;
  transition: transform var(--transition);
}

.service-card:hover .service-visual svg {
  transform: scale(1.08);
}

.service-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.service-body > p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 18px;
}

.service-specs {
  list-style: none;
  margin-bottom: 24px;
  flex: 1;
}

.service-specs li {
  padding: 7px 0 7px 22px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-secondary);
  border-bottom: 1px dashed var(--border);
}

.service-specs li:last-child {
  border-bottom: 0;
}

.service-specs li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 7px;
  color: var(--secondary);
  font-weight: 700;
  font-size: 0.95rem;
}

.service-arrow {
  display: inline-block;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition);
  align-self: flex-start;
}

.service-card:hover .service-arrow {
  transform: translateX(4px);
}

.cta-actions .btn-primary:hover {
  background: #00a3a3;
  border-color: #00a3a3;
}

.cta-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.cta-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* 快速交付与全面支持 */
.service-support-section {
  padding: 80px 0;
  background: var(--dark);
  color: #fff;
}

.service-support-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 0.75fr;
  gap: 48px;
  align-items: center;
}

.service-support-text h2 {
  font-size: clamp(1.6rem, 3.2vw, 2rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.service-support-text p {
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(0.98rem, 1.7vw, 1.08rem);
  line-height: 1.75;
  margin-bottom: 14px;
}

.service-support-text .support-note {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.86rem;
  margin-bottom: 0;
}

.service-support-actions {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}

.support-phone {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  color: #fff;
  transition: color var(--transition);
}

.support-phone:hover {
  color: var(--secondary);
}

.support-phone svg {
  width: 28px;
  height: 28px;
  stroke: var(--secondary);
  margin-bottom: 8px;
}

.support-phone .phone-number {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.support-phone .phone-label {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.6);
}

.support-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.support-btns .btn {
  min-width: 140px;
  padding: 12px 24px;
}

.service-support-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  max-width: 220px;
  margin-left: auto;
}

.service-support-qr img {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border-radius: 8px;
  display: block;
}

.service-support-qr .qr-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  text-align: center;
}

.btn-white {
  background: #fff;
  color: var(--dark);
  border-color: #fff;
}

.btn-white:hover {
  background: var(--secondary);
  color: #fff;
  border-color: var(--secondary);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.85);
}

@media (max-width: 992px) {
  .service-support-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .service-support-actions {
    align-items: flex-start;
  }

  .service-support-qr {
    margin-left: 0;
    max-width: 100%;
    align-self: flex-start;
  }
}

/* 公司信息下拉菜单略窄 */
.company-menu {
  min-width: 240px;
}

/* 响应式：服务页 */
@media (max-width: 992px) {
  .service-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .service-grid {
    grid-template-columns: 1fr;
  }
}

/* ================================
   首页 主视觉轮播
   ================================ */
.hero-carousel {
  padding: calc(var(--header-h) + 48px) 0 64px;
  background: #e4ebf7;
}

.hero-carousel .container {
  max-width: 1320px;
}

.carousel-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 5.4;
  min-height: 560px;
  border-radius: 0;
  overflow: hidden;
  background: transparent;
  box-shadow: none;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease;
  will-change: opacity;
}

.carousel-slide.is-active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.carousel-link {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

/* 左文右图布局（参考 SH8 横幅） */
.carousel-slide.layout-text-left .carousel-link {
  grid-template-columns: 1fr 1.2fr;
}

.carousel-slide.layout-text-left .carousel-image {
  order: 2;
}

.carousel-slide.layout-text-left .carousel-text {
  order: 1;
}

.carousel-image {
  position: relative;
  background: transparent;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 轮播产品展示区不再使用蓝色圆角框 */
.carousel-image.image-bg-blue {
  background: transparent;
}

.carousel-image.image-bg-blue::before,
.carousel-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background: transparent;
}

.carousel-image img {
  position: relative;
  z-index: 1;
  max-width: 92%;
  max-height: 92%;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.18));
  transition: transform 0.7s ease;
}

/* DA-V30 产品图放大展示 */
.carousel-slide.layout-text-left .carousel-image img {
  max-width: 78%;
  max-height: 78%;
}

.carousel-slide.is-active .carousel-image img {
  animation: heroImgFloat 6s ease-in-out infinite;
}

@keyframes heroImgFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

.carousel-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px 56px;
  background: #e4ebf7;
}

.carousel-text h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 14px;
  text-wrap: balance;
}

.carousel-text p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

/* 轮播重点卖点列表 */
.carousel-highlights {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.carousel-highlights li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.carousel-highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

.carousel-highlights li strong {
  color: var(--text);
  font-weight: 700;
}

/* 轮播文字逐行跳出动画 */
.carousel-text .anim-item {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  will-change: transform, opacity;
}

.carousel-slide.is-active .anim-item {
  opacity: 1;
  transform: translateY(0);
}

.carousel-slide.is-active .anim-item:nth-child(1) { transition-delay: 0.08s; }
.carousel-slide.is-active .anim-item:nth-child(2) { transition-delay: 0.18s; }
.carousel-slide.is-active .anim-item:nth-child(3) { transition-delay: 0.28s; }
.carousel-slide.is-active .anim-item:nth-child(4) { transition-delay: 0.38s; }
.carousel-slide.is-active .anim-item:nth-child(5) { transition-delay: 0.48s; }
.carousel-slide.is-active .anim-item:nth-child(6) { transition-delay: 0.58s; }
.carousel-slide.is-active .anim-item:nth-child(7) { transition-delay: 0.68s; }

.carousel-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  margin-bottom: 18px;
}

.meta-pill {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
}

.carousel-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  align-self: flex-end;
  text-align: right;
  transition: gap var(--transition);
}

.carousel-link:hover .carousel-cta {
  gap: 12px;
}

/* 缩略图条 */
.carousel-thumbs {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
}

.thumb-nav {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: #fff;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.thumb-nav:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.thumb-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.thumb-nav svg {
  width: 18px;
  height: 18px;
}

.thumb-list {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 14px;
  overflow: hidden;
}

.thumb-item {
  flex: 0 1 200px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px 8px 12px;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  font: inherit;
  color: inherit;
  text-decoration: none;
}

.thumb-item:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.thumb-item img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  display: block;
  transition: transform var(--transition);
}

.thumb-item .thumb-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text);
  transition: color var(--transition);
}

.thumb-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.thumb-item.is-active {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 6px 16px rgba(117, 1, 104, 0.16);
}

.thumb-item.is-active .thumb-label {
  color: var(--primary);
}

.thumb-item.is-active img {
  transform: scale(1.06);
}

/* 响应式 */
@media (max-width: 1100px) {
  .carousel-text { padding: 44px 44px; }
  .carousel-text h2 { font-size: 1.5rem; }
}

@media (max-width: 860px) {
  .hero-carousel { padding-top: calc(var(--header-h) + 24px); padding-bottom: 32px; }
  .carousel-stage {
    display: grid;
    aspect-ratio: auto;
    min-height: 0;
    height: auto;
    overflow: visible;
  }
  .carousel-slide {
    position: relative;
    inset: auto;
    display: none;
    opacity: 1;
    visibility: visible;
    transition: none;
    will-change: auto;
  }
  .carousel-slide.is-active {
    display: block;
    z-index: 1;
  }
  .carousel-link,
  .carousel-slide.layout-text-left .carousel-link {
    height: auto;
    grid-template-columns: 1fr;
    grid-template-rows: minmax(210px, 52vw) auto;
  }
  .carousel-slide.layout-text-left .carousel-image,
  .carousel-slide.layout-text-left .carousel-text {
    order: 0;
  }
  .carousel-image {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
  .carousel-image img {
    width: auto;
    height: 100%;
    max-width: 86%;
    max-height: 100%;
  }
  .carousel-slide.layout-text-left .carousel-image img {
    max-width: 76%;
    max-height: 76%;
  }
  .carousel-text {
    padding: 28px 24px 32px;
  }
  .carousel-text h2 { font-size: 1.25rem; }
  .carousel-text p { font-size: 0.88rem; margin-bottom: 16px; }
  .carousel-highlights li { font-size: 0.84rem; margin-bottom: 8px; }
  .carousel-meta { margin-top: 10px; margin-bottom: 14px; }
  .thumb-list {
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    overflow: visible;
  }
  .thumb-item { flex: 1 1 0; padding: 8px 4px 10px; }
  .thumb-item img { width: 40px; height: 40px; }
  .thumb-item .thumb-label { font-size: 0.74rem; }
  .carousel-stage { display: none; }
}

@media (max-width: 560px) {
  .hero-carousel {
    padding: var(--header-h) 0 32px;
  }
  .carousel-link,
  .carousel-slide.layout-text-left .carousel-link {
    grid-template-rows: 120px auto;
  }
  .carousel-image {
    aspect-ratio: auto;
    height: 100%;
    overflow: hidden;
  }
  .carousel-text {
    padding: 12px 16px 14px;
  }
  .carousel-text h2 {
    margin-bottom: 4px;
    font-size: 1.08rem;
    line-height: 1.25;
  }
  .carousel-text p {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    margin-bottom: 6px;
    font-size: 0.76rem;
    line-height: 1.45;
  }
  .carousel-meta {
    gap: 5px;
    margin: 5px 0 6px;
  }
  .meta-pill {
    padding: 3px 8px;
    font-size: 0.68rem;
  }
  .carousel-cta {
    font-size: 0.82rem;
  }
  .carousel-thumbs {
    gap: 7px;
    margin-top: 48px;
  }
  .thumb-nav {
    width: 42px;
    height: 42px;
  }
  .thumb-nav svg {
    width: 19px;
    height: 19px;
  }
  .thumb-list {
    gap: 4px;
  }
  .thumb-item {
    min-height: 110px;
    gap: 8px;
    padding: 10px 4px 12px;
    border-radius: 14px;
  }
  .thumb-item img {
    width: 40px;
    height: 40px;
  }
  .thumb-item .thumb-label {
    font-size: 0.84rem;
    line-height: 1.35;
  }
  .carousel-cta {
    align-self: flex-start;
  }
  .thumb-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 深色模式已在文件顶部锁定为 only light，避免手机 WebView 强制反色 */

/* =========================
   微信小程序入口
   悬浮按钮（全站）+ 小程序码浮层 + 底部 CTA 内联按钮
   ========================= */

.mp-fab {
  position: fixed;
  right: 24px;
  bottom: 84px;
  padding: 9px 12px 7px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--bg);
  color: #07c160;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  z-index: 998;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.mp-fab:hover,
.mp-fab:focus-visible {
  background: #07c160;
  color: #fff;
  transform: translateY(-2px);
  outline: none;
}

/* v=196: 「小程序」文字常驻显示（原为悬停 tooltip，手机端隐藏）；v=199: 改上下结构，文字缩小置图标下方 */
.mp-fab-tip {
  position: static;
  transform: none;
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: 0.66rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.02em;
  white-space: nowrap;
  opacity: 1;
  visibility: visible;
  pointer-events: none;
}

/* 小程序码浮层 */
.mp-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.26s ease;
}

.mp-modal[hidden] {
  display: none;
}

.mp-modal.is-open {
  opacity: 1;
}

.mp-modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(11, 17, 32, 0.52);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.mp-modal-card {
  position: relative;
  width: min(90vw, 320px);
  padding: 34px 30px 30px;
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: translateY(14px) scale(0.97);
  transition: transform 0.3s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.mp-modal.is-open .mp-modal-card {
  transform: none;
}

.mp-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.mp-modal-close:hover,
.mp-modal-close:focus-visible {
  background: var(--bg-alt);
  color: var(--text);
  outline: none;
}

.mp-modal-qr {
  display: block;
  width: min(58vw, 200px);
  height: auto;
  margin: 4px auto 20px;
  border-radius: var(--radius-sm);
}

.mp-modal-title {
  margin-bottom: 8px;
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}

.mp-modal-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-muted);
}

/* 底部 CTA 内联按钮 */
.support-btns .btn-miniprogram {
  min-width: auto;
}

.btn-miniprogram svg {
  flex-shrink: 0;
  color: #07c160;
  transition: color var(--transition);
}

.btn-miniprogram:hover svg {
  color: inherit;
}

@media (max-width: 640px) {
  .mp-fab {
    right: 16px;
    bottom: 76px;
    padding: 7px 10px 5px;
    gap: 2px;
  }
  .mp-fab-tip {
    font-size: 0.6rem;
  }
  .mp-fab svg {
    width: 19px;
    height: 19px;
  }
  .mp-modal {
    padding: 20px;
  }
  .mp-modal-card {
    padding: 30px 24px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mp-fab,
  .mp-modal,
  .mp-modal-card {
    transition: none;
  }
  .mp-fab:hover,
  .mp-fab:focus-visible {
    transform: none;
  }
}

/* 悬浮入口改为真实链接 <a> 后的补丁（手机端点击直接进跳转页） */
a.mp-fab {
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

/* v=195: 非中文模式下四个社媒图标保持单行（标签过长时在标签内部换行，不撑宽 item） */
html:not(:lang(zh)) .qr-social-row {
  flex-wrap: nowrap;
}
html:not(:lang(zh)) .qr-social-item {
  flex: 0 0 110px;
  width: 110px;
}
html:not(:lang(zh)) .qr-social-item span {
  max-width: 110px;
  white-space: normal;
  line-height: 1.25;
  font-size: 0.78rem;
}
@media (max-width: 768px) {
  html:not(:lang(zh)) .qr-social-row {
    flex-wrap: nowrap;
  }
  html:not(:lang(zh)) .qr-social-item {
    flex: 0 0 90px;
    width: 90px;
  }
  html:not(:lang(zh)) .qr-social-item img {
    width: 90px;
    height: 90px;
  }
  html:not(:lang(zh)) .qr-social-item span {
    max-width: 90px;
  }
}