/* =========================================================
 * 润得科技官网 - 全站样式
 * 配色参照设计图：科技蓝主色 + 浅蓝底 + 深色页脚
 * ========================================================= */

:root {
  --blue: #2e6ce4;
  --blue-deep: #1f56c4;
  --blue-light: #4f8df9;
  --bg-page: #f3f7ff;
  --bg-card: #ffffff;
  --text-main: #1c2333;
  --text-sub: #5b6475;
  --footer-bg: #17181d;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(31, 91, 216, .10);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text-main);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* 仅供屏幕阅读器/搜索引擎可见（SEO h1 兜底） */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------- 导航栏 ---------------- */
.navbar {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s, box-shadow .3s;
}
.navbar.is-solid {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 18px rgba(20, 50, 120, .10);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }

.logo { display: flex; align-items: center; gap: 9px; }
.logo-mark { width: 34px; height: 34px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.15; color: #fff; transition: color .3s; }
.logo-text strong { font-size: 17px; letter-spacing: 1px; }
.logo-text em { font-style: normal; font-size: 9px; letter-spacing: 2.4px; opacity: .8; }
.navbar.is-solid .logo-text { color: var(--blue-deep); }

.nav-menu { display: flex; gap: 6px; }
.nav-link {
  padding: 8px 15px; font-size: 15px; color: #fff;
  border-radius: 8px; transition: color .25s, background .25s;
}
.nav-link:hover { color: #cfe1ff; }
.nav-link.is-active { font-weight: 600; }
.navbar.is-solid .nav-link { color: var(--text-main); }
.navbar.is-solid .nav-link:hover, .navbar.is-solid .nav-link.is-active { color: var(--blue); }

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-search {
  width: 34px; height: 34px; border: 0; border-radius: 50%;
  background: rgba(255,255,255,.18); color: #fff; cursor: pointer;
  display: grid; place-items: center; transition: background .25s, color .25s;
}
.navbar.is-solid .nav-search { background: #eaf1ff; color: var(--blue); }
.nav-burger { display: none; }

/* ---------------- Hero ---------------- */
.hero { position: relative; }
.hero-product {
  height: 520px;
  background: url("../assets/images/hero-helmet.webp") center 30% / cover no-repeat;
}
.hero-solutions {
  height: 560px;
  background: url("../assets/images/hero-solutions.webp") center / cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 60, .28), transparent 40%);
  pointer-events: none;
}
.hero-breadcrumb {
  position: absolute; left: 50%; transform: translateX(-50%); bottom: 26px;
  z-index: 2; display: flex; align-items: center; gap: 8px;
  color: #eaf2ff; font-size: 14px;
}
.hero-breadcrumb svg { opacity: .9; }
.hero-breadcrumb a:hover { text-decoration: underline; }
.hero-breadcrumb em { font-style: normal; font-weight: 600; }

/* ---------------- 页面标题区 ---------------- */
.page-body { padding: 58px 0 80px; }
.page-head { text-align: center; margin-bottom: 46px; }
.ghost-title {
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 800; letter-spacing: 1px;
  color: rgba(46, 108, 228, .13);
  user-select: none; margin-bottom: -30px;
}
.page-title { font-size: 30px; letter-spacing: 2px; position: relative; }
.tab-pills { margin-top: 26px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.tab-pill {
  min-width: 168px; padding: 9px 26px; text-align: center;
  font-size: 14px; color: var(--text-main);
  background: #fff; border: 1px solid #dbe6f8; border-radius: 999px;
  transition: all .25s;
}
.tab-pill:hover { border-color: var(--blue-light); color: var(--blue); }
.tab-pill.is-active {
  color: #fff; border-color: transparent; font-weight: 600;
  background: linear-gradient(90deg, #4f8df9, #2e6ce4);
  box-shadow: 0 6px 16px rgba(46, 108, 228, .35);
}
/* 行业 Tab：未上线行业的禁用态（不可点击，悬停提示"整理中"） */
.tab-pill.is-disabled { color: #9aa4b5; cursor: default; }
.tab-pill.is-disabled:hover { border-color: #dbe6f8; color: #9aa4b5; }

/* 窄屏表格横向滚动容器（参数对比/方案优势） */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.table-scroll table { min-width: 640px; }

/* ---------------- 通用小节标签 ---------------- */
.section-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 19px; font-weight: 700; margin-bottom: 22px;
}
.section-label i {
  width: 4px; height: 18px; border-radius: 2px;
  background: linear-gradient(180deg, #4f8df9, #2e6ce4);
}

/* ---------------- 产品页 ---------------- */
.product-section { margin-bottom: 56px; }
.product-banner {
  display: block; border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); margin-bottom: 22px;
}
.product-banner img { width: 100%; transition: transform .5s; }
.product-banner:hover img { transform: scale(1.02); }

.product-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px;
}
.product-card {
  display: flex; gap: 8px; align-items: stretch;
  background: linear-gradient(160deg, #ffffff, #eef4ff 78%, #e3edff);
  border: 1px solid #e4edfb; border-radius: var(--radius);
  padding: 26px 22px; box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
}
.product-card:hover { transform: translateY(-5px); box-shadow: 0 16px 38px rgba(31, 91, 216, .18); }
.product-photo { flex: 0 0 40%; display: grid; place-items: center; }
.product-photo img { max-height: 190px; object-fit: contain; }
/* 同排产品卡统一等宽（左右区域一致）；--wide 仅放宽图片高度上限 */
.product-card--wide .product-photo img { max-height: 380px; }
.product-info { flex: 1; display: flex; flex-direction: column; align-items: flex-start; }
.product-model { font-size: 20px; line-height: 1.35; letter-spacing: .5px; }
.product-model span { font-size: 17px; font-weight: 600; }
.product-desc { margin: 12px 0 16px; font-size: 13px; color: var(--text-sub); line-height: 1.7; }
.btn-outline {
  padding: 7px 22px; font-size: 13px; color: var(--text-main);
  border: 1px solid #cdd9ee; border-radius: 999px; background: #fff;
  transition: all .25s;
}
.btn-outline:hover { color: #fff; background: var(--blue); border-color: var(--blue); }
.swatches { display: flex; gap: 8px; margin-top: auto; padding-top: 14px; }
.swatch {
  width: 18px; height: 18px; border-radius: 50%;
  border: 1px solid rgba(0,0,0,.12);
  box-shadow: inset 0 -2px 4px rgba(0,0,0,.08);
  transition: transform .2s;
}
.swatch:hover { transform: scale(1.18); }
/* 可切换图片的色板：悬停放大 + 高亮描边提示 */
.swatch.has-img { cursor: pointer; }
.swatch.has-img:hover {
  transform: scale(1.25);
  box-shadow: inset 0 -2px 4px rgba(0,0,0,.08), 0 0 0 2px #fff, 0 0 0 4px var(--blue);
}
/* 当前配色：常驻描边（悬停会切图且移开保留，需要能看出当前是哪一色） */
.swatch.is-active {
  transform: scale(1.15);
  box-shadow: inset 0 -2px 4px rgba(0,0,0,.08), 0 0 0 2px #fff, 0 0 0 4px var(--blue);
}
.swatch.has-img:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

/* ---------------- 定制方案页 ---------------- */
.solution-intro { margin-bottom: 34px; }
.solution-intro-row {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.solution-intro-row p { font-size: 15px; color: var(--text-sub); }
.btn-primary {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 24px; border-radius: 999px; font-size: 14px; color: #fff;
  background: linear-gradient(90deg, #4f8df9, #2e6ce4);
  box-shadow: 0 6px 16px rgba(46, 108, 228, .32);
  transition: transform .25s, box-shadow .25s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(46, 108, 228, .42); }

.step-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.step-card {
  background: linear-gradient(165deg, #ffffff, #edf3ff);
  border: 1px solid #e4edfb; border-radius: 18px;
  padding: 26px 26px 30px; box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
}
.step-card:hover { transform: translateY(-5px); box-shadow: 0 16px 38px rgba(31, 91, 216, .18); }
.step-head { display: flex; align-items: center; justify-content: space-between; }
.step-icon {
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(135deg, #7fb0ff, #3d79ee);
  box-shadow: 0 8px 18px rgba(61, 121, 238, .35);
}
.step-no {
  font-size: 40px; font-weight: 800; font-style: italic;
  color: transparent; letter-spacing: 1px;
  background: linear-gradient(180deg, #6ea3ff, #2e6ce4);
  -webkit-background-clip: text; background-clip: text;
}
.step-body { display: flex; gap: 20px; margin-top: 20px; }
.step-text { flex: 1; }
.step-text h3 { font-size: 21px; margin-bottom: 14px; }
.step-text li {
  position: relative; padding-left: 14px;
  font-size: 14px; color: var(--text-sub); line-height: 2.1;
}
.step-text li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 5px; height: 5px; border-radius: 50%; background: var(--blue-light);
}
.step-photo { flex: 0 0 46%; border-radius: 12px; overflow: hidden; }
.step-photo img { width: 100%; height: 100%; object-fit: cover; }

/* ---------------- 平台占位页 ---------------- */
.platform-teaser {
  background: linear-gradient(160deg, #ffffff, #e8f0ff);
  border: 1px solid #e4edfb; border-radius: 18px;
  padding: 60px 30px; text-align: center; box-shadow: var(--shadow);
}
.platform-teaser p { font-size: 16px; color: var(--text-sub); margin-bottom: 24px; letter-spacing: 1px; }

/* ---------------- 页脚 ---------------- */
.footer { background: var(--footer-bg); color: #aab0bd; margin-top: 40px; }
.footer-grid {
  /* 左列 2fr：要放得下「联系方式 + 单行地址」（地址不换行） */
  display: grid; grid-template-columns: 2fr repeat(3, 1fr);
  gap: 30px; padding: 52px 0 46px;
}
.footer-hotline-label { font-size: 15px; color: #e8ecf3; font-weight: 600; }
.footer-hotline {
  font-size: 26px; font-weight: 800; letter-spacing: 1px;
  color: #3d7bf0; margin: 6px 0 24px;
}
.footer-contact-label { font-size: 15px; color: #e8ecf3; font-weight: 600; margin-bottom: 10px; }
.footer-contacts li { font-size: 13px; line-height: 2.1; }
.footer-contacts span { color: #d4d9e2; }
/* 地址：紧接「联系方式」最后一行（邮箱）下方，保持单行不换行 */
.footer-address {
  margin-top: 10px; font-size: 12px; line-height: 1.75; color: #8b91a0;
  white-space: nowrap;
}
/* 中等宽度（左列放不下整条地址）时退回自动换行，避免压到右侧导航列 */
@media (max-width: 1200px) {
  .footer-address { white-space: normal; }
}
/* 「关注我们」：整行独占，标题在上、二维码紧随其下（按可扫尺寸展示） */
.footer-socials-row {
  grid-column: 1 / -1;
  display: flex; flex-direction: column; align-items: flex-start; gap: 18px;
  margin-top: 4px; padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.footer-socials-row h4 { font-size: 15px; color: #e8ecf3; font-weight: 600; }

.footer-socials {
  --qr: 128px;                       /* 二维码展示尺寸（响应式覆盖），素材为 3 倍屏 */
  display: flex; flex-wrap: wrap; align-items: flex-start; gap: 20px 26px;
}
/* 内置 SVG 兜底图标（后台未上传图片时）：保持原来的小圆钮 */
.footer-socials a {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: #26282f; color: #cfd4de; transition: all .25s;
}
.footer-socials a:hover { background: var(--blue); color: #fff; }
.footer-socials a img { width: 18px; height: 18px; object-fit: contain; display: block; }

/* 二维码（图片图标）：方形白底 + 平台名。
   不能用圆形 —— 二维码四角的定位点会被切掉，深色底还会吃掉静区留白 */
.footer-socials a.social-img {
  width: auto; height: auto; border-radius: 0; background: none; padding: 0;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.footer-socials a.social-img:hover { background: none; }
.footer-socials a.social-img img {
  width: var(--qr); height: var(--qr); padding: 8px; border-radius: 14px;
  background: #fff; box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
  transition: transform .25s, box-shadow .25s;
}
.footer-socials a.social-img:hover img {
  transform: translateY(-3px); box-shadow: 0 12px 26px rgba(0, 0, 0, .28);
}
.footer-socials a.social-img em { font-style: normal; font-size: 12.5px; color: #aab0bd; }

.footer-col h4 { font-size: 15px; color: #e8ecf3; font-weight: 600; margin-bottom: 16px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 13px; color: #8b91a0; transition: color .25s; }
.footer-col a:hover { color: #fff; }

/* ---------------- 返回顶部 ---------------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 90;
  width: 44px; height: 44px; border: 0; border-radius: 50%;
  color: #fff; cursor: pointer;
  background: linear-gradient(135deg, #4f8df9, #2e6ce4);
  box-shadow: 0 8px 20px rgba(46, 108, 228, .4);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s;
}
.back-top.is-show { opacity: 1; visibility: visible; transform: none; }

/* ---------------- 进场动画 ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
/* ---------- 平板（<=900px）：抽屉菜单 + 单列网格 ---------- */
@media (max-width: 900px) {
  .container { width: 94%; }

  .nav-menu {
    position: fixed; top: 64px; left: 0; right: 0; z-index: 99;
    flex-direction: column; gap: 2px; padding: 12px 4%;
    background: rgba(255, 255, 255, .98);
    backdrop-filter: blur(10px);
    box-shadow: 0 14px 30px rgba(20, 50, 120, .14);
    transform: translateY(-130%); transition: transform .35s ease, visibility .35s;
    visibility: hidden;
  }
  .navbar.menu-open .nav-menu { transform: none; visibility: visible; }
  .navbar.is-solid .nav-link, .nav-link {
    color: var(--text-main); display: block; padding: 11px 15px; font-size: 15px;
  }
  .navbar.is-solid .nav-link:hover, .navbar.is-solid .nav-link.is-active,
  .nav-link:hover, .nav-link.is-active { background: #eef4ff; color: var(--blue); }

  .nav-burger {
    display: flex; flex-direction: column; gap: 4.5px;
    width: 34px; height: 34px; border: 0; background: rgba(255,255,255,.18);
    border-radius: 8px; cursor: pointer; align-items: center; justify-content: center;
  }
  .navbar.is-solid .nav-burger { background: #eaf1ff; }
  .nav-burger span { width: 16px; height: 2px; background: #fff; border-radius: 2px; transition: all .3s; }
  .navbar.is-solid .nav-burger span, .navbar.menu-open .nav-burger span { background: var(--blue-deep); }
  .nav-burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-burger.is-open span:nth-child(2) { opacity: 0; }
  .nav-burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

  .hero-product, .hero-solutions { height: 380px; }
  .product-grid, .step-grid { grid-template-columns: 1fr; }
  .product-card { flex-direction: column; padding: 22px 18px; }
  .product-photo img { max-height: 220px; }
  .product-card--wide .product-photo img { max-height: 340px; }
  .solution-intro-row { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 20px; padding: 44px 0 40px; }
}

/* ---------- 手机（<=600px） ---------- */
@media (max-width: 600px) {
  body { font-size: 14px; }
  .navbar-inner { height: 56px; }
  .nav-menu { top: 56px; }
  .logo-mark { width: 30px; height: 30px; }
  .logo-text strong { font-size: 15px; }
  .logo-text em { font-size: 8px; letter-spacing: 1.6px; }
  .nav-search { width: 32px; height: 32px; }

  .hero-product, .hero-solutions { height: max(46vw, 300px); }
  .hero-breadcrumb { bottom: 18px; font-size: 12.5px; gap: 6px; }
  .hero-breadcrumb svg { width: 13px; height: 13px; }

  .page-body { padding: 40px 0 60px; }
  .page-head { margin-bottom: 34px; }
  .ghost-title { font-size: 34px; margin-bottom: -24px; }
  .page-title { font-size: 23px; letter-spacing: 1.2px; }
  .tab-pills {
    gap: 10px; flex-wrap: nowrap; overflow-x: auto;
    justify-content: flex-start; padding-bottom: 6px;
    -webkit-overflow-scrolling: touch; scrollbar-width: none;
  }
  .tab-pills::-webkit-scrollbar { display: none; }
  .tab-pill { min-width: 0; flex: 1 0 auto; padding: 8px 18px; font-size: 13px; white-space: nowrap; }

  .section-label { font-size: 17px; margin-bottom: 16px; }
  .section-label i { height: 16px; }
  .product-section { margin-bottom: 44px; }
  .product-banner { border-radius: 12px; }

  .product-card { text-align: center; }
  .product-info { align-items: center; }
  .product-model { font-size: 18px; }
  .product-model span { font-size: 15px; }
  .product-desc { font-size: 12.5px; margin: 10px 0 14px; }
  .btn-outline { padding: 7px 26px; font-size: 13px; }
  .swatches { justify-content: center; }

  .solution-intro-row { gap: 14px; }
  .solution-intro-row p { font-size: 13.5px; }
  .step-card { padding: 20px 18px 24px; border-radius: 14px; }
  .step-body { flex-direction: column-reverse; gap: 16px; margin-top: 16px; }
  .step-text h3 { font-size: 19px; margin-bottom: 10px; }
  .step-text li { font-size: 13.5px; line-height: 2; }
  .step-no { font-size: 34px; }
  .step-icon { width: 40px; height: 40px; }
  .step-photo { flex: none; height: 170px; border-radius: 10px; }
  .step-photo img { height: 100%; object-fit: cover; }

  .platform-teaser { padding: 44px 20px; }
  .platform-teaser p { font-size: 13.5px; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-left { grid-column: 1 / -1; }
  .footer-hotline { font-size: 22px; }
  .footer-address { font-size: 12px; }
  .footer-socials { --qr: 108px; gap: 16px 22px; }

  .back-top { right: 16px; bottom: 20px; width: 40px; height: 40px; }
}

/* ---------- 小屏手机（<=400px） ---------- */
@media (max-width: 400px) {
  .logo-text em { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-socials { --qr: 92px; gap: 14px 18px; }
  .hero-product, .hero-solutions { height: max(56vw, 250px); }
}

/* ---------- 横屏矮屏优化 ---------- */
@media (max-width: 900px) and (orientation: landscape) and (max-height: 500px) {
  .nav-menu {
    flex-direction: row; flex-wrap: wrap; top: 56px;
    max-height: calc(100vh - 56px); overflow-y: auto;
  }
  .nav-link { padding: 8px 12px; font-size: 14px; }
  .hero-product, .hero-solutions { height: max(70vw, 240px); }
}

/* =========================================================
 * 按 AI 原稿补齐的页面样式
 * ========================================================= */

/* ---------------- 整幅 Hero 图 ---------------- */
.hero-img { margin-top: 0; }
.hero-img img { width: 100%; display: block; }
.section { padding: 64px 0 30px; }

/* 左对齐标题（首页风格） */
.ghost-left { text-align: left; margin-bottom: -22px; font-size: clamp(28px, 3.4vw, 44px); }
.title-left { text-align: left; }
.section-head-split {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 38px; flex-wrap: wrap;
}
.head-links { display: flex; gap: 26px; }
.head-links a { font-size: 15px; color: var(--text-sub); transition: color .25s; }
.head-links a:hover { color: var(--blue); }
.head-links a.is-active { color: var(--blue); font-weight: 600; }
.head-arrow { color: var(--blue); transition: transform .25s; }
.head-arrow:hover { transform: translateX(4px); }
.head-btns { display: flex; gap: 14px; }

/* ---------------- 首页：产品与服务 ---------------- */
.home-prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.home-prod { text-align: center; }
.home-prod-photo img { width: 100%; max-width: 336px; margin: 0 auto; }
.home-prod h3 { font-size: 19px; margin-top: 18px; }
.home-prod > p { font-size: 13px; color: var(--text-sub); margin: 10px 0 18px; }
.home-prod-btns { display: flex; justify-content: center; gap: 12px; }

/* ---------------- 首页：行业应用 ---------------- */
.ind-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.ind-card {
  display: block; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow);
}
.ind-card img { width: 100%; transition: transform .5s; }
.ind-card:hover img { transform: scale(1.03); }

/* ---------------- 首页：全球布局 ---------------- */
.home-global {
  margin: 60px 0 0; padding: 64px 0 70px;
  background: #f4f8ff right center / auto 90% no-repeat;
}
.global-bullets { margin: 10px 0 46px; }
.global-bullets li {
  font-size: 15px; color: var(--text-sub); line-height: 2.4; padding-left: 18px; position: relative;
}
.global-bullets li::before {
  content: ""; position: absolute; left: 0; top: 16px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--blue-light);
}
.global-bullets strong { color: var(--text-main); font-size: 16px; }
.global-bullets em { font-style: normal; color: var(--text-sub); }
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  text-align: center; padding-top: 8px;
}
.stat-num {
  display: block; font-size: clamp(40px, 5vw, 62px); font-weight: 800; color: var(--blue);
  font-style: italic; line-height: 1.1;
}
.stat-num .count { font-weight: 800; }
.stat-num sup { font-size: .55em; font-weight: 700; margin-left: 2px; }
.stat-label { display: block; margin-top: 8px; font-size: 15px; color: var(--text-sub); }

/* ---------------- 首页：CTA / 合作伙伴 ---------------- */
.cta-banner img, .partner-strip img { width: 100%; display: block; }
.partner-strip { background: #fff; padding: 14px 0; }

/* 合作伙伴 Logo 无缝轮播（宽度与新闻资讯栏目对齐） */
/* 首页合作伙伴走马灯：整体区域高度与 Logo 尺寸均较原设计放大 60%
 * 原：padding 12 + Logo 56 + padding 12 = 80px
 * 现：padding 19 + Logo 90 + padding 19 = 128px（80 × 1.6） */
.partner-carousel {
  width: min(1200px, 92%); margin: 8px auto 26px;
  padding: 19px 30px; overflow: hidden;
  background: #fff; border: 1px solid #e8eef9; border-radius: 16px;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}
.partner-track {
  display: flex; width: max-content;
  animation: partner-scroll 45s linear infinite;
}
.partner-carousel:hover .partner-track { animation-play-state: paused; }
.partner-logo {
  flex: 0 0 auto; height: 90px; margin-right: 64px;
  display: flex; align-items: center;
}
.partner-logo img {
  height: 100%; width: auto; max-width: 304px; object-fit: contain;
  filter: grayscale(20%); transition: filter .3s, transform .3s;
}
.partner-logo img:hover { filter: none; transform: scale(1.06); }
@keyframes partner-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* 关于页：合作伙伴多行走马灯（4 行 x 10 个，奇偶行方向交错，速度较慢）
 * 整体较原设计放大 60%（行高、Logo、行距、间距统一 ×1.6，保持比例不变）
 * 原：padding 22 + Logo 52 + 行距 18 + padding 6
 * 现：padding 35 + Logo 83 + 行距 29 + padding 10 */
.partner-multi { padding: 35px 30px 10px; }
.partner-multi .partner-track { animation-duration: 80s; }
.partner-multi .partner-track.is-reverse { animation-direction: reverse; }
.partner-multi .partner-track + .partner-track { margin-top: 29px; }
.partner-multi .partner-logo { height: 83px; margin-right: 77px; }
.partner-multi .partner-logo img { max-width: 272px; }

/* ---------------- 新闻卡片 ---------------- */
.news-card {
  background: #fff; border: 1px solid #e8eef9; border-radius: 16px;
  padding: 0 0 22px; overflow: hidden; transition: transform .3s, box-shadow .3s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.news-photo { border-radius: 14px; overflow: hidden; margin: 10px 10px 16px; }
.news-photo img { width: 100%; transition: transform .5s; }
.news-card:hover .news-photo img { transform: scale(1.04); }
.news-date {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; color: #9aa5b5; padding: 0 20px;
}
.news-card h3 { font-size: 16.5px; line-height: 1.5; padding: 10px 20px 0; }
.news-excerpt { font-size: 13px; color: var(--text-sub); line-height: 1.8; padding: 10px 20px 14px; }
.news-more { font-size: 13px; color: var(--blue); padding: 0 20px; }
.news-more:hover { text-decoration: underline; }

/* ---------------- 新闻列表：层叠列表（首页 + 新闻页共用） ----------------
 * 每条：左侧图片撑满行高，右侧自上而下「标题 → 概要 → 日期/栏目」，
 * 逐条竖向层叠，行与行之间一条分隔线（与草图一致）。
 * 两处共用 NewsCardHTML，版式靠这个父容器类统一。
 */
.news-list { margin-top: 40px; }
.news-list .news-card {
  display: grid;
  /* 1fr 的最小值是 auto，会被标题/摘要的内容顶宽（窄屏下会溢出），故用 minmax(0, 1fr) */
  grid-template-columns: 320px minmax(0, 1fr);
  grid-template-areas:
    "photo title"
    "photo excerpt"
    "photo meta";
  align-content: start;
  column-gap: 30px;
  background: none; border: 0; border-radius: 0;
  padding: 0 0 30px;
  overflow: visible;
  transition: none;
}
/* 分隔线只画在条目之间，第一条上方不画 */
.news-list .news-card + .news-card { border-top: 1px solid #e8eef9; padding-top: 30px; }
.news-list .news-card:hover { transform: none; box-shadow: none; }

/* 左图：撑满整行高度并裁齐，保证每条高度一致 */
.news-list .news-photo {
  grid-area: photo; margin: 0;
  align-self: stretch; min-height: 186px;
  border-radius: 14px; overflow: hidden;
}
.news-list .news-photo img { width: 100%; height: 100%; object-fit: cover; }

.news-list .news-card h3 { grid-area: title; padding: 0; font-size: 19px; transition: color .25s; }
.news-list .news-card:hover h3 { color: var(--blue); }

/* 概要最多两行，避免个别长摘要把某一条撑高 */
.news-list .news-excerpt {
  grid-area: excerpt; padding: 12px 0 0;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-list .news-date { grid-area: meta; padding: 14px 0 0; }

/* 首页（.news-list-thumb）：图片收成小缩略图放左边，整块更紧凑、不占版面。
 * 新闻页不加这个类，仍然用上面的大图版式。 */
.news-list-thumb .news-card {
  grid-template-columns: 180px minmax(0, 1fr);
  column-gap: 20px;
  padding-bottom: 22px;
}
.news-list-thumb .news-card + .news-card { padding-top: 22px; }
/* 缩略图固定 16:9 且顶对齐（不再拉伸到整行高，避免又把行撑高） */
.news-list-thumb .news-photo { align-self: start; min-height: 0; aspect-ratio: 16 / 9; border-radius: 10px; }
.news-list-thumb .news-card h3 { font-size: 17px; }
.news-list-thumb .news-excerpt { padding-top: 8px; }
.news-list-thumb .news-date { padding-top: 10px; }

@media (max-width: 900px) {
  .news-list-thumb .news-card { grid-template-columns: 148px minmax(0, 1fr); column-gap: 16px; }
}

@media (max-width: 560px) {
  /* 缩略图版窄屏仍是「左图右文」，不改成上图下文（那样缩略图会变成通栏大图） */
  .news-list-thumb .news-card {
    grid-template-columns: 112px minmax(0, 1fr); column-gap: 14px;
    grid-template-areas: "photo title" "photo excerpt" "photo meta";
  }
  .news-list-thumb .news-card h3 { font-size: 15.5px; padding-top: 0; }
  .news-list-thumb .news-excerpt { padding-top: 6px; }
  .news-list-thumb .news-date { padding-top: 8px; }
}
/* 卡片里的栏目小标签 */
.news-date .news-cat {
  font-style: normal; margin-left: auto;
  padding: 1px 9px; border-radius: 999px;
  background: #eef3fb; color: var(--blue); font-size: 11.5px;
}
/* 无封面时的占位底色 */
.news-photo { background: #eef3fb; }

/* ---------- 新闻列表：企业动态 / 行业新闻 两个子栏目 ---------- */
.news-tabs { margin: 0 0 12px; }
.news-tabs .tab-pill { min-width: 132px; font-family: inherit; cursor: pointer; }
.news-pane { display: none; }
.news-pane.is-active { display: block; }
.news-empty { text-align: center; color: var(--text-sub); font-size: 14px; padding: 56px 0; }
.news-empty a { color: var(--blue); }

/* ---------- 新闻详情页 ---------- */
.news-crumb { font-size: 13px; color: var(--text-sub); margin-bottom: 18px; }
.news-crumb a { color: var(--text-sub); }
.news-crumb a:hover { color: var(--blue); }
.news-crumb em { font-style: normal; margin: 0 8px; opacity: .5; }

.news-detail { max-width: 860px; margin: 0 auto; }
.news-detail-title { font-size: clamp(21px, 3vw, 30px); line-height: 1.5; letter-spacing: .5px; }
.news-detail-meta {
  display: flex; align-items: center; gap: 8px;
  margin: 14px 0 28px; font-size: 13.5px; color: #9aa5b5;
}
.news-detail-meta em { font-style: normal; color: #c8d2e2; }
.news-detail-cover { margin-bottom: 30px; }
.news-detail-cover img { width: 100%; height: auto; border-radius: 14px; display: block; }

.news-detail-body { font-size: 15.5px; line-height: 2.05; color: #33415c; }
.news-detail-body p { margin: 0 0 18px; }
.news-detail-body p:last-child { margin-bottom: 0; }

.news-figure { margin: 24px 0; }
.news-figure img { width: 100%; height: auto; border-radius: 12px; display: block; }
.news-figure figcaption {
  margin-top: 10px; text-align: center;
  font-size: 12.5px; color: var(--text-sub); line-height: 1.7;
}

/* 富文本正文（后台编辑器产出）的各类元素 */
.news-detail-body h2 { font-size: 21px; margin: 34px 0 14px; }
.news-detail-body h3 { font-size: 18px; margin: 28px 0 12px; }
.news-detail-body h4 { font-size: 16px; margin: 24px 0 10px; }
.news-detail-body ul, .news-detail-body ol { margin: 0 0 18px; padding-left: 24px; }
.news-detail-body li { margin-bottom: 8px; }
.news-detail-body blockquote {
  margin: 20px 0; padding: 12px 18px; border-radius: 0 8px 8px 0;
  border-left: 3px solid var(--blue); background: #f5f8fd; color: var(--text-sub);
}
.news-detail-body pre {
  margin: 20px 0; padding: 14px 16px; border-radius: 10px; overflow-x: auto;
  background: #f4f7fc; font: 13px/1.7 ui-monospace, SFMono-Regular, Consolas, monospace;
}
.news-detail-body code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.news-detail-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.news-detail-body th, .news-detail-body td { border: 1px solid #e6ecf6; padding: 9px 12px; text-align: left; }
.news-detail-body th { background: #f6f9fe; font-weight: 600; }
.news-detail-body img { max-width: 100%; height: auto; border-radius: 12px; }
.news-detail-body figure { margin: 24px 0; }
.news-detail-body figure img { width: 100%; height: auto; border-radius: 12px; display: block; }
/* 视频嵌入：按 16:9 自适应宽度 */
.news-detail-body iframe.ql-video {
  width: 100%; height: auto; aspect-ratio: 16 / 9;
  margin: 20px 0; border: 0; border-radius: 12px; display: block;
}
.news-detail-body .ql-align-center { text-align: center; }
.news-detail-body .ql-align-right { text-align: right; }
.news-detail-body .ql-align-justify { text-align: justify; }
.news-detail-body .ql-size-small { font-size: .875em; }
.news-detail-body .ql-size-large { font-size: 1.4em; }
.news-detail-body .ql-size-huge { font-size: 2em; }
.news-detail-body .ql-indent-1 { padding-left: 2em; }
.news-detail-body .ql-indent-2 { padding-left: 4em; }
.news-detail-body .ql-indent-3 { padding-left: 6em; }

.news-pager {
  display: flex; justify-content: space-between; gap: 18px;
  margin: 46px auto 0; max-width: 860px;
  padding-top: 24px; border-top: 1px solid #eef3fb;
}
.news-pager-item {
  max-width: 46%; font-size: 13.5px; color: var(--text-sub); line-height: 1.7;
}
.news-pager-item em {
  display: block; font-style: normal; font-size: 12px; color: #9aa5b5; margin-bottom: 4px;
}
.news-pager-item span { color: var(--text-main); }
.news-pager-item:hover span { color: var(--blue); }
.news-pager-item.is-next { text-align: right; margin-left: auto; }

.news-back { text-align: center; margin-top: 34px; }

/* ---------------- 平台页 ---------------- */
.platform-intro {
  max-width: 980px; margin: 0 auto 40px; text-align: center;
  font-size: 15px; color: var(--text-sub); line-height: 2;
}
.platform-shots { margin-bottom: 64px; }
.shot-big {
  width: 100%; border-radius: 16px; box-shadow: var(--shadow);
  border: 1px solid #e4edfb; display: block;
}
.shot-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 22px; }
.shot-row img {
  width: 100%; border-radius: 14px; box-shadow: var(--shadow); border: 1px solid #e4edfb;
}
.platform-feat { margin-bottom: 56px; }
.feat-title {
  display: flex; align-items: center; gap: 10px; font-size: 20px; margin-bottom: 26px;
}
.feat-title i {
  width: 0; height: 0; border: 7px solid transparent; border-left-color: var(--blue-light);
}
.feat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.feat-shot img { width: 100%; }
.feat-bullets li {
  position: relative; padding-left: 20px; font-size: 14.5px;
  color: var(--text-sub); line-height: 1.9; margin-bottom: 14px;
}
.feat-bullets li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 8px; height: 8px; border-radius: 50%; background: var(--blue-light);
}
.feat-bullets strong { color: var(--text-main); font-size: 16px; }

/* ---------------- RD-D12 详情页 ---------------- */
.d12-intro { text-align: center; max-width: 900px; margin: 0 auto 44px; }
.d12-intro p { margin-top: 18px; font-size: 15px; color: var(--text-sub); line-height: 2; }
.d12-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.d12-photo { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.d12-photo img { width: 100%; height: 100%; object-fit: cover; }
.d12-text-card {
  background: linear-gradient(160deg, #2f6de6, #1d4fb4); color: #fff;
  border-radius: 16px; padding: 40px 36px; position: relative;
}
.d12-text-card h3 { font-size: 22px; margin: 26px 0 18px; }
.d12-text-card p { font-size: 14px; line-height: 2; color: #dbe7ff; }
.d12-arrow {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255,255,255,.18); color: #fff;
}

.roles-section {
  margin: 70px 0; padding: 80px 0 90px; color: #fff;
  background: linear-gradient(120deg, #12244d 0%, #1d4fb4 55%, #16367e 100%);
}
.roles-section h2 { text-align: center; font-size: clamp(24px, 3vw, 34px); }
.roles-sub { text-align: center; margin: 16px 0 46px; color: #cfe0ff; font-size: 14.5px; }
.roles-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.role-card {
  position: relative; display: flex; overflow: hidden;
  background: rgba(255,255,255,.97); color: var(--text-main);
  border-radius: 16px; min-height: 230px;
}
.role-body { position: relative; flex: 1; padding: 26px 28px 24px; z-index: 1; }
.role-photo {
  position: absolute; right: 0; top: 0; bottom: 0; width: 46%;
  background: center / cover no-repeat;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 45%);
  mask-image: linear-gradient(to right, transparent, #000 45%);
}
.role-no {
  position: absolute; top: 0; right: 0; font-size: 26px; font-weight: 800;
  font-style: italic; color: rgba(46,108,228,.25);
}
.role-card h3 { font-size: 18px; }
.role-tag { font-size: 13px; color: var(--blue); margin: 8px 0 14px; }
.role-card ul li {
  font-size: 13.5px; color: var(--text-sub); line-height: 2;
  padding-left: 16px; position: relative;
}
.role-card ul li::before {
  content: ""; position: absolute; left: 0; top: 11px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue-light);
}
.role-btn {
  display: inline-block; margin-top: 16px; padding: 6px 20px; font-size: 13px;
  color: var(--blue); border: 1px solid var(--blue-light); border-radius: 999px;
  transition: all .25s;
}
.role-btn:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

.d12-edge { text-align: center; margin-bottom: 60px; }
.edge-sub { margin: 14px 0 40px; font-size: 14.5px; color: var(--text-sub); }
.edge-grid { display: grid; grid-template-columns: 1.15fr .92fr .92fr; gap: 24px; text-align: left; }
.edge-grid > img { width: 100%; border-radius: 16px; box-shadow: var(--shadow); }
.edge-text {
  background: linear-gradient(160deg, #2f6de6, #1d4fb4); color: #fff;
  border-radius: 16px; padding: 36px 32px;
}
.edge-text h3 { font-size: 20px; margin-bottom: 22px; }
.edge-item { font-size: 13.5px; line-height: 1.9; color: #dbe7ff; margin-bottom: 16px; }
.edge-item strong { color: #fff; font-size: 15px; }

.spec-section { text-align: center; margin-bottom: 60px; }
.spec-table {
  width: 100%; border-collapse: collapse; margin-top: 34px;
  background: #fff; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow);
  font-size: 14px;
}
.spec-table th, .spec-table td {
  padding: 15px 14px; border-bottom: 1px solid #edf2fa; color: var(--text-sub); text-align: left;
}
.spec-table thead th {
  background: linear-gradient(90deg, #4f8df9, #2e6ce4); color: #fff; font-size: 15px;
}
.spec-table td:first-child { color: var(--text-main); font-weight: 600; }
.spec-table .is-hl { background: rgba(46,108,228,.07); }
.spec-table thead .is-hl { background: #1d4fb4; }
.spec-table tbody tr:last-child td { border-bottom: 0; }

.scene-section { text-align: center; }
.scene-card {
  position: relative; margin-top: 36px; border-radius: 18px; overflow: hidden;
  box-shadow: var(--shadow); text-align: left;
}
.scene-card img { width: 100%; }
.scene-info {
  position: absolute; left: 26px; bottom: 26px; right: 26px; max-width: 720px;
  background: rgba(255,255,255,.95); backdrop-filter: blur(6px);
  border-radius: 14px; padding: 22px 28px;
}
.scene-info h3 { font-size: 19px; margin-bottom: 10px; }
.scene-info p { font-size: 13px; color: var(--text-sub); line-height: 1.8; }

/* ---------------- 行业方案页 ---------------- */
.ind-bg p { font-size: 14.5px; color: var(--text-sub); line-height: 2; margin-bottom: 30px; }
.pain-section { margin-top: 60px; }
.pain-wrap {
  position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 40px;
  align-content: space-between; margin-top: 10px;
}
.pain-center {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 44%; border-radius: 50% 50% 0 0; overflow: hidden; box-shadow: var(--shadow);
  border: 6px solid #fff;
}
.pain-center img { width: 100%; display: block; }
.pain-item {
  background: rgba(255,255,255,.85); border: 1px solid #e4edfb; border-radius: 14px;
  padding: 20px 24px; backdrop-filter: blur(4px);
}
.pain-item h4 { font-size: 17px; color: var(--blue-deep); margin-bottom: 8px; }
.pain-item p { font-size: 13px; color: var(--text-sub); line-height: 1.9; }
.pain-0, .pain-2 { margin-right: 24%; }
.pain-1, .pain-3 { margin-left: 24%; }

.our-solution { margin-top: 60px; }
.solution-text { font-size: 14.5px; color: var(--text-sub); line-height: 2; margin-bottom: 26px; }
.solution-card {
  background: #fff; border: 1px solid #e4edfb; border-radius: 16px;
  box-shadow: var(--shadow); padding: 30px 36px;
}
.solution-card li { font-size: 14px; color: var(--text-sub); line-height: 2.1; }
.solution-card strong { color: var(--text-main); }

.flow-steps {
  display: flex; align-items: center; justify-content: space-between;
  margin: 60px 0; position: relative;
}
.flow-steps::before {
  content: ""; position: absolute; left: 6%; right: 6%; top: 21px; height: 2px;
  background: linear-gradient(90deg, #bcd4ff, #8db4fb);
}
.flow-step { position: relative; text-align: center; z-index: 1; }
.flow-step i {
  display: block; width: 42px; height: 42px; margin: 0 auto 12px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #bcd6ff, #2e6ce4);
  box-shadow: 0 6px 16px rgba(46,108,228,.35);
}
.flow-step span { font-size: 14.5px; font-weight: 600; }

.adv-table {
  width: 100%; border-collapse: separate; border-spacing: 0 10px; font-size: 14px;
}
.adv-table thead th { padding: 14px 20px; color: #fff; font-size: 15px; text-align: center; }
.adv-table thead .adv-runde { background: linear-gradient(90deg, #4f8df9, #2e6ce4); border-radius: 10px 0 0 10px; }
.adv-table thead .adv-client { background: #1c1e24; border-radius: 0 10px 10px 0; }
.adv-table tbody th { color: var(--text-main); font-weight: 600; padding: 14px 18px; text-align: center; }
.adv-table tbody td {
  background: #fff; border-top: 1px solid #e8eef9; border-bottom: 1px solid #e8eef9;
  padding: 16px 20px; color: var(--text-sub); line-height: 1.8;
}
.adv-table tbody tr td:first-of-type { border-left: 1px solid #e8eef9; border-radius: 10px 0 0 10px; }
.adv-table tbody tr td:last-of-type { border-right: 1px solid #e8eef9; border-radius: 0 10px 10px 0; }

/* ---------------- 关于页 ---------------- */
.about-intro { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; margin-bottom: 50px; }
.about-text p { font-size: 14.5px; color: var(--text-sub); line-height: 2.1; margin-bottom: 22px; }
.about-photo { border-radius: 18px; overflow: hidden; box-shadow: var(--shadow); }
.about-photo img { width: 100%; }

.core-section {
  position: relative; margin: 60px 0; padding: 70px 0; border-radius: 22px;
  background: center / cover no-repeat; overflow: hidden;
}
.core-section::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,20,45,.55), rgba(10,20,45,.72));
}
.core-title { position: relative; text-align: center; color: #fff; font-size: clamp(24px,3vw,32px); margin-bottom: 40px; }
.core-card {
  position: relative; display: grid; grid-template-columns: 1fr 1fr;
  width: min(1080px, 92%); margin: 0 auto; border-radius: 18px; overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.core-photo img { width: 100%; height: 100%; object-fit: cover; }
.core-info { background: #17181d; color: #aab0bd; padding: 44px 42px; }
.core-info h3 { color: #fff; font-size: 21px; margin-bottom: 18px; }
.core-info p { font-size: 14px; line-height: 2.1; }

.history-section {
  position: relative; margin: 60px 0; padding: 66px 0 80px; border-radius: 22px;
  background: linear-gradient(120deg, #0d1d40 0%, #1a3a86 60%, #122a5e 100%);
  overflow: hidden; color: #fff;
}
.history-section::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 20%, rgba(79,141,249,.28), transparent 55%);
}
.history-inner { position: relative; width: min(1080px, 92%); margin: 0 auto; }
.history-inner h3 { font-size: 22px; letter-spacing: 2px; }
.history-inner h3 small { margin-left: 10px; font-size: 12px; letter-spacing: 3px; color: #9db6e8; }
.history-year {
  font-size: clamp(64px, 9vw, 110px); font-weight: 800; line-height: 1.15; margin: 18px 0 10px;
  text-shadow: 0 10px 40px rgba(0,0,0,.4);
}
.history-text { font-size: 14.5px; color: #cfe0ff; min-height: 52px; max-width: 640px; line-height: 1.9; }
.year-track {
  display: flex; justify-content: space-between; margin: 44px 0 26px;
  border-top: 2px solid rgba(255,255,255,.25); padding-top: 0;
}
.year-dot {
  background: none; border: 0; color: #cfe0ff; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 0 4px; font-family: inherit;
}
.year-dot i {
  width: 14px; height: 14px; border-radius: 50%; margin-top: -8px;
  background: #fff; border: 3px solid rgba(255,255,255,.35); transition: all .25s;
}
.year-dot span { font-size: 14px; }
.year-dot.is-active i { background: var(--blue-light); border-color: #fff; transform: scale(1.3); }
.year-dot.is-active span { color: #fff; font-weight: 700; }
.year-nav { display: flex; gap: 12px; justify-content: center; }
.year-nav button {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid rgba(255,255,255,.4);
  background: rgba(255,255,255,.12); color: #fff; cursor: pointer; transition: all .25s;
  display: grid; place-items: center;
}
.year-nav button:hover { background: var(--blue); border-color: var(--blue); }

.brand-section, .partner-section { text-align: center; margin-bottom: 56px; }
.brand-text {
  max-width: 860px; margin: 18px auto 34px; font-size: 14.5px; color: var(--text-sub); line-height: 2;
}
.cert-strip { width: 100%; max-width: 1140px; display: block; margin: 14px auto 0; }

/* ---------------- 新闻页 ---------------- */
.pagination { display: flex; justify-content: center; gap: 12px; margin-top: 46px; }
.page-no {
  width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  border: 1px solid #cdd9ee; color: var(--text-sub); font-size: 14px; cursor: pointer;
  transition: all .25s;
}
.page-no.is-active, .page-no:hover {
  background: linear-gradient(135deg, #4f8df9, #2e6ce4); color: #fff; border-color: transparent;
}

/* ---------------- 联系页 ---------------- */
.contact-sub { margin-top: 20px; font-size: 14px; color: var(--text-sub); line-height: 2; }



.contact-form {
  background: #fff; border: 1px solid #e8eef9; border-radius: 18px;
  box-shadow: var(--shadow); padding: 40px 44px; max-width: 980px;
}
.form-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 18px; }
.form-row:first-child { grid-template-columns: 1fr 1fr; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 12px 16px; font-size: 14px; font-family: inherit;
  border: 1px solid #dbe6f8; border-radius: 10px; background: #f8fbff;
  color: var(--text-main); outline: none; transition: border-color .25s, box-shadow .25s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  border-color: var(--blue-light); box-shadow: 0 0 0 3px rgba(79,141,249,.15);
}
.contact-form textarea { resize: vertical; margin-bottom: 18px; }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
/* 同意条款：整行不换行显示（文案含两个条款链接） */
.form-agree {
  font-size: 12.5px; color: var(--text-sub);
  display: flex; align-items: center; gap: 6px; white-space: nowrap;
}
/* 复选框需要复位：否则会被 .contact-form input 的 width:100% / 大内边距撑成大框，
 * 导致勾选框与文案被拉开、无法紧凑左对齐 */
.form-agree input[type="checkbox"] {
  flex: none; width: 15px; height: 15px; margin: 0; padding: 0;
  border-radius: 3px; accent-color: var(--blue); cursor: pointer;
}
.form-agree a { color: var(--blue); text-decoration: none; }
.form-agree a:hover { text-decoration: underline; }

/* ---------------- 图形验证码 ---------------- */
/* 输入框与图片左对齐紧凑排列 */
.form-row-captcha { grid-template-columns: auto auto; justify-content: start; align-items: center; gap: 12px; }
/* 验证码输入框只保留 6–8 个字符的宽度 */
.form-row-captcha input[name="captcha_code"] {
  width: 118px; padding-left: 10px; padding-right: 10px;
  text-align: center; letter-spacing: 2px; font-weight: 600; text-transform: uppercase;
}
.form-captcha { display: flex; align-items: center; gap: 8px; }
.form-captcha img {
  display: block; width: 132px; height: 46px; cursor: pointer;
  border: 1px solid #dbe6f8; border-radius: 10px; background: #f6f9ff;
  transition: opacity .2s;
}
.form-captcha img.is-loading { opacity: .45; }
.captcha-refresh {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; flex: none; padding: 0; cursor: pointer;
  color: var(--text-sub); background: #f2f6fd;
  border: 1px solid #dbe6f8; border-radius: 50%;
  transition: color .25s, border-color .25s, transform .25s;
}
.captcha-refresh:hover { color: var(--blue); border-color: var(--blue-light); transform: rotate(-90deg); }
.btn-submit {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 28px;
  border: 0; border-radius: 999px; background: #1c1e24; color: #fff; font-size: 14px;
  cursor: pointer; transition: background .25s, transform .25s;
}
.btn-submit:hover { background: var(--blue); transform: translateY(-2px); }
.form-toast {
  margin-top: 16px; padding: 12px 18px; border-radius: 10px; font-size: 14px;
  background: #e8f7ee; color: #1d7a3e; border: 1px solid #b9e6c8;
}
.form-toast.is-error { background: #fef2f2; color: #b91c1c; border-color: #f5c2c2; }
.btn-submit[disabled] { opacity: .65; cursor: not-allowed; transform: none; }
/* 防机器人蜜罐：视觉隐藏但不使用 display:none（部分机器人会跳过隐藏元素） */
.form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; opacity: 0; }

/* ---------------- 法律条款页（个人隐私保护方针 / 网站政策） ---------------- */
.legal-lead { max-width: 860px; font-size: 15px; line-height: 1.9; color: var(--text-sub); }
.legal-wrap {
  max-width: 900px; background: #fff; border: 1px solid #e8eef9;
  border-radius: 18px; box-shadow: var(--shadow); padding: 44px 48px;
}
.legal-meta {
  margin: 0 0 26px; padding-bottom: 18px; font-size: 13px; color: var(--text-sub);
  border-bottom: 1px solid #eef3fb;
}
.legal-section + .legal-section { margin-top: 30px; }
.legal-section h2 { font-size: 17px; font-weight: 700; color: var(--text-main); margin: 0 0 12px; }
.legal-section p { font-size: 14.5px; line-height: 2; color: var(--text-sub); margin: 0 0 10px; }
.legal-section ul { margin: 0; padding-left: 20px; }
.legal-section li { font-size: 14.5px; line-height: 2; color: var(--text-sub); margin-bottom: 6px; }

/* 页脚法律条款行：版权 + 隐私方针 / 网站政策 */
.footer-legal {
  display: flex; align-items: center; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  margin-top: 18px; padding-top: 16px; font-size: 12.5px;
  border-top: 1px solid rgba(255,255,255,.14); color: rgba(255,255,255,.55);
}
.footer-legal-links { display: inline-flex; align-items: center; gap: 10px; }
.footer-legal-links a { color: rgba(255,255,255,.72); text-decoration: none; }
.footer-legal-links a:hover { color: #fff; text-decoration: underline; }
.footer-legal-links em { font-style: normal; opacity: .35; }
.footer-light .footer-legal { border-top-color: rgba(20,40,80,.1); color: var(--text-sub); }
.footer-light .footer-legal-links a { color: var(--text-sub); }
.footer-light .footer-legal-links a:hover { color: var(--blue); }

/* ---------------- 首页浅色页脚 ---------------- */
.footer-light {
  position: relative; background: #f5f8ff; color: var(--text-sub); overflow: hidden;
}
.footer-light .footer-hotline-label,
.footer-light .footer-contact-label { color: var(--text-main); }
.footer-light .footer-hotline { color: var(--blue); }
.footer-light .footer-contacts span { color: var(--text-main); }
.footer-light .footer-address { color: var(--text-sub); }
.footer-light .footer-col h4 { color: var(--text-main); }
.footer-light .footer-col a { color: var(--text-sub); }
.footer-light .footer-col a:hover { color: var(--blue); }
/* 浅色页脚：仅内置兜底小图标沿用浅色圆钮；二维码保持白底（深色底会吃掉静区留白） */
.footer-light .footer-socials a:not(.social-img) { background: #e4ecfb; color: var(--blue); }
.footer-light .footer-socials a:not(.social-img):hover { background: var(--blue); color: #fff; }
.footer-light .footer-socials-row { border-top-color: rgba(20, 40, 80, .1); }
.footer-light .footer-socials-row h4 { color: var(--text-main); }
.footer-light .footer-socials a.social-img img { box-shadow: 0 6px 18px rgba(31, 91, 216, .14); }
.footer-light .footer-socials a.social-img em { color: var(--text-sub); }
.footer-ghost {
  position: absolute; right: -2%; bottom: -18%; z-index: 0;
  font-size: clamp(220px, 26vw, 380px); font-weight: 800; font-style: italic;
  color: rgba(46, 108, 228, .08); pointer-events: none; line-height: 1;
}
.footer-light .footer-grid { position: relative; z-index: 1; }

/* ---------------- 新页面响应式补充 ---------------- */
@media (max-width: 900px) {
  .home-prod-grid, .ind-grid { grid-template-columns: 1fr; }
  /* 窄屏走马灯同步放大 60%（原 10 + 58 + 10 = 78px → 16 + 93 + 16 = 125px） */
  .partner-carousel { padding: 16px 0; width: 94%; }
  .partner-logo { height: 93px; margin-right: 34px; }
  .partner-logo img { max-width: 256px; }
  .partner-track { animation-duration: 30s; }
  /* 关于页走马灯同步放大 60%（44 → 70） */
  .partner-multi { padding: 26px 0 3px; }
  .partner-multi .partner-track { animation-duration: 55s; }
  .partner-multi .partner-track + .partner-track { margin-top: 19px; }
  .partner-multi .partner-logo { height: 70px; margin-right: 48px; }
  .ind-card, .news-card { max-width: 560px; margin: 0 auto; width: 100%; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 30px 10px; }
  .feat-row { grid-template-columns: 1fr; gap: 24px; }
  .d12-grid, .roles-grid { grid-template-columns: 1fr; }
  .role-photo { display: none; }
  .role-card { min-height: 0; }
  .edge-grid { grid-template-columns: 1fr; }
  .pain-wrap { grid-template-columns: 1fr; }
  .pain-center { position: static; transform: none; width: 100%; border-radius: 18px; order: -1; margin-bottom: 10px; }
  .pain-0, .pain-1, .pain-2, .pain-3 { margin: 0; }
  .flow-steps { flex-wrap: wrap; gap: 20px; }
  .flow-steps::before { display: none; }
  .flow-step { flex: 1 0 40%; }
  .about-intro { grid-template-columns: 1fr; gap: 26px; }
  .core-card { grid-template-columns: 1fr; }
  .form-row, .form-row:first-child { grid-template-columns: 1fr; }
  /* 验证码保持「输入框 + 图片」并排，不因上面的单列规则而上下堆叠 */
  .form-row-captcha { grid-template-columns: auto auto; justify-content: start; }
  .contact-form { padding: 28px 22px; }
  /* 条款保持一行显示：小屏收窄字号与间距 */
  .form-agree { font-size: 11.5px; gap: 5px; }
  .legal-wrap { padding: 28px 22px; }
  .legal-section h2 { font-size: 16px; }
  .section-head-split { flex-direction: column; align-items: flex-start; gap: 14px; }
  .shot-row { grid-template-columns: 1fr; }
  .scene-info { position: static; border-radius: 0; }
  .scene-card img { display: block; }
  .history-year { margin: 10px 0 6px; }
  .year-dot span { font-size: 12px; }
  .footer-ghost { font-size: 200px; bottom: -8%; }
}

/* ---------------- 新闻层叠列表：响应式 ---------------- */
@media (max-width: 900px) {
  /* 上面的通用规则给 .news-card 加了 max-width:560px 并居中，列表需占满整行 */
  .news-list .news-card {
    grid-template-columns: 240px minmax(0, 1fr); column-gap: 22px;
    max-width: none; margin: 0;
  }
  .news-list .news-photo { min-height: 150px; }
  .news-list .news-card h3 { font-size: 17px; }
}

@media (max-width: 560px) {
  /* 窄屏放不下「左图右文」，改为上图下文（仍逐条层叠 + 行间分隔线） */
  .news-list .news-card {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "photo" "title" "excerpt" "meta";
  }
  .news-list .news-photo { min-height: 0; aspect-ratio: 16 / 9; }
  .news-list .news-card h3 { font-size: 16.5px; padding-top: 16px; }
  .news-list .news-excerpt { padding-top: 10px; }
}