/* ============================================================
   云策科技 YUNCE TECH — 企业官网共享样式
   ============================================================ */

/* ---------- 字体 ---------- */
@font-face {
  font-family: 'Noto Sans SC';
  src: url('../fonts/NotoSansSC-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Noto Sans SC';
  src: url('../fonts/NotoSansSC-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ---------- 设计令牌 ---------- */
:root {
  --c-brand: #1671f5;
  --c-brand-dark: #0d5bd8;
  --c-brand-deep: #0a4cb8;
  --c-navy: #081b38;
  --c-navy-2: #0d2750;
  --c-navy-3: #123364;
  --c-cyan: #37c8f2;
  --c-ink: #14263f;
  --c-text: #45566e;
  --c-muted: #7c8ba3;
  --c-bg: #ffffff;
  --c-bg-soft: #f4f8fe;
  --c-bg-soft2: #eef4fd;
  --c-line: #e2eaf6;
  --c-success: #12b76a;
  --c-warn: #f79009;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(8, 27, 56, 0.06);
  --shadow-md: 0 10px 34px rgba(8, 27, 56, 0.10);
  --shadow-lg: 0 22px 60px rgba(8, 27, 56, 0.16);
  --container: 1200px;
  --header-h: 74px;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }

h1, h2, h3, h4, h5 {
  color: var(--c-ink);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.01em;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

::selection { background: rgba(22, 113, 245, 0.16); }

/* ---------- 通用组件 ---------- */
.section { padding: 88px 0; }
.section-soft { background: var(--c-bg-soft); }
.section-navy {
  background: linear-gradient(160deg, var(--c-navy) 0%, var(--c-navy-2) 55%, var(--c-navy-3) 100%);
}

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin-left: 0; text-align: left; }
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; letter-spacing: 0.06em;
  color: var(--c-brand);
  background: rgba(22, 113, 245, 0.08);
  border: 1px solid rgba(22, 113, 245, 0.16);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
}
.section-head h2 { font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 16px; }
.section-head .lead { font-size: 17px; color: var(--c-muted); }
.section-navy .section-head h2 { color: #fff; }
.section-navy .section-head .lead { color: rgba(255, 255, 255, 0.72); }
.section-navy .section-head .eyebrow {
  color: #7fc3ff; background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.18);
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 700; font-size: 15px; line-height: 1;
  padding: 14px 26px; border-radius: 10px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; flex: none; }
.btn-primary { background: var(--c-brand); color: #fff; box-shadow: 0 8px 22px rgba(22, 113, 245, 0.32); }
.btn-primary:hover { background: var(--c-brand-dark); transform: translateY(-1px); box-shadow: 0 12px 28px rgba(22, 113, 245, 0.38); }
.btn-light { background: #fff; color: var(--c-navy); }
.btn-light:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(8, 27, 56, 0.22); }
.btn-ghost { border: 1px solid rgba(255, 255, 255, 0.42); color: #fff; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-1px); }
.btn-outline { border: 1px solid var(--c-line); color: var(--c-ink); background: #fff; }
.btn-outline:hover { border-color: var(--c-brand); color: var(--c-brand); transform: translateY(-1px); }
.btn-sm { padding: 10px 18px; font-size: 14px; }

.tag {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--c-brand); background: rgba(22, 113, 245, 0.08);
  padding: 3px 12px; border-radius: 6px;
}
.tag.navy { color: #8ec8ff; background: rgba(255, 255, 255, 0.1); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled { border-color: var(--c-line); box-shadow: 0 6px 24px rgba(8, 27, 56, 0.07); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); gap: 24px;
}
.brand { display: flex; align-items: center; flex: none; }
.brand-logo { height: 42px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  position: relative; padding: 10px 15px; font-size: 15px; font-weight: 500;
  color: var(--c-text); border-radius: 8px; transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover { color: var(--c-brand); background: rgba(22, 113, 245, 0.06); }
.nav-link.active { color: var(--c-brand); font-weight: 700; }
.nav-link.active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px;
  height: 3px; border-radius: 3px; background: var(--c-brand);
}

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.header-tel { gap: 8px; }
.header-tel svg { width: 15px; height: 15px; }

.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; background: var(--c-bg-soft); }
.nav-toggle span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--c-ink); transition: transform 0.25s ease, opacity 0.25s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-navy); color: rgba(255, 255, 255, 0.78); font-size: 14.5px; }
.footer-grid {
  display: grid; grid-template-columns: 2.2fr 1fr 1fr 1fr 1.4fr;
  gap: 40px; padding: 64px 0 48px;
}
.footer-logo { height: 40px; width: auto; background: #fff; border-radius: 8px; padding: 5px 10px; margin-bottom: 18px; }
.footer-brand p { max-width: 320px; color: rgba(255, 255, 255, 0.6); }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer-col a { display: block; color: rgba(255, 255, 255, 0.6); padding: 5px 0; transition: color 0.2s ease; }
.footer-col a:hover { color: #fff; }
.footer-contact p { padding: 5px 0; color: rgba(255, 255, 255, 0.6); }
.footer-contact p strong { color: #fff; font-size: 17px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 22px 0; display: flex; justify-content: space-between; gap: 16px;
  color: rgba(255, 255, 255, 0.45); font-size: 13.5px;
}

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1000px 520px at 82% 8%, rgba(55, 200, 242, 0.16), transparent 60%),
    radial-gradient(760px 480px at 12% 96%, rgba(22, 113, 245, 0.24), transparent 60%),
    linear-gradient(150deg, #06142c 0%, #0a2248 52%, #0d2c5e 100%);
  color: #fff;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(80% 70% at 60% 30%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(80% 70% at 60% 30%, #000 0%, transparent 100%);
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.02fr 0.98fr; align-items: center;
  gap: 56px; padding: 92px 0 96px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; font-weight: 700; color: #9fd0ff;
  background: rgba(255, 255, 255, 0.08); border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px; padding: 7px 16px; margin-bottom: 26px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 0 4px rgba(55, 200, 242, 0.25); }
.hero h1 {
  color: #fff; font-size: clamp(34px, 4.6vw, 54px); line-height: 1.22;
  margin-bottom: 22px; letter-spacing: 0.005em;
}
.hero h1 .hl {
  background: linear-gradient(92deg, #5db4ff 0%, #37c8f2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .hero-sub { font-size: 18px; color: rgba(255, 255, 255, 0.74); max-width: 520px; margin-bottom: 34px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-points { display: flex; gap: 30px; flex-wrap: wrap; }
.hero-point { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: rgba(255, 255, 255, 0.82); }
.hero-point svg { width: 18px; height: 18px; color: var(--c-cyan); flex: none; }

.hero-visual { position: relative; }
.hero-visual img {
  border-radius: var(--radius-lg); box-shadow: 0 34px 80px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.hero-visual::after {
  content: ""; position: absolute; inset: -14px; z-index: -1;
  border-radius: 26px; background: linear-gradient(135deg, rgba(55, 200, 242, 0.28), rgba(22, 113, 245, 0.12) 50%, transparent 70%);
  filter: blur(6px);
}
.hero-float {
  position: absolute; background: rgba(255, 255, 255, 0.97); color: var(--c-ink);
  border-radius: 14px; padding: 12px 16px; box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 12px; font-size: 13.5px; font-weight: 700;
}
.hero-float .num { color: var(--c-brand); font-size: 20px; }
.hero-float.f1 { top: 26px; left: -22px; }
.hero-float.f2 { bottom: 40px; right: -14px; }

/* 首页数据条 */
.stat-strip { background: #fff; border-bottom: 1px solid var(--c-line); }
.stat-strip-inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 44px 0;
}
.stat-item { text-align: center; padding: 0 20px; border-left: 1px solid var(--c-line); }
.stat-item:first-child { border-left: 0; }
.stat-item .num { font-size: clamp(30px, 3.4vw, 42px); font-weight: 700; color: var(--c-navy); }
.stat-item .num em { font-style: normal; color: var(--c-brand); }
.stat-item .label { font-size: 14.5px; color: var(--c-muted); margin-top: 6px; }

/* 客户名称墙 */
.logo-wall { padding: 56px 0; }
.logo-wall .wall-title { text-align: center; font-size: 14px; color: var(--c-muted); margin-bottom: 30px; letter-spacing: 0.08em; }
.logo-wall-list {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px;
}
.logo-wall-list li {
  font-size: 15px; font-weight: 700; color: #5c6e8c;
  background: #fff; border: 1px solid var(--c-line);
  padding: 10px 22px; border-radius: 10px; letter-spacing: 0.04em;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.logo-wall-list li:hover { color: var(--c-brand); border-color: rgba(22, 113, 245, 0.4); }

/* 首页产品四卡 */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  position: relative; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 26px 24px 28px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(22, 113, 245, 0.35); }
.product-card .p-icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 20px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, #1671f5, #0d5bd8);
  color: #fff;
}
.product-card .p-icon svg { width: 26px; height: 26px; }
.product-card h3 { font-size: 19px; margin-bottom: 10px; }
.product-card p { font-size: 14.5px; color: var(--c-muted); flex: 1; margin-bottom: 16px; }
.product-card .p-link { font-weight: 700; font-size: 14px; color: var(--c-brand); display: inline-flex; align-items: center; gap: 6px; }
.product-card .p-link svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.product-card:hover .p-link svg { transform: translateX(4px); }

/* 解决方案（首页四图） */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.solution-card {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 4 / 4.6; display: block;
  box-shadow: var(--shadow-sm); transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.solution-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.solution-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.solution-card:hover img { transform: scale(1.05); }
.solution-card .sc-mask {
  position: absolute; inset: 0;
  background: linear-gradient(185deg, rgba(8, 27, 56, 0) 34%, rgba(8, 27, 56, 0.82) 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 24px 22px;
}
.solution-card h3 { color: #fff; font-size: 20px; margin-bottom: 6px; }
.solution-card p { color: rgba(255, 255, 255, 0.78); font-size: 13.5px; }

/* 差异化（为什么选择） */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.feature-item {
  display: flex; gap: 20px; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 28px 26px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.feature-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.feature-item .f-icon {
  flex: none; width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(22, 113, 245, 0.1); color: var(--c-brand);
}
.feature-item .f-icon svg { width: 24px; height: 24px; }
.feature-item h3 { font-size: 17.5px; margin-bottom: 8px; }
.feature-item p { font-size: 14.5px; color: var(--c-muted); }

/* 案例卡（首页三卡） */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  display: block; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(22, 113, 245, 0.32); }
.case-card .cc-img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.case-card .cc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .cc-img img { transform: scale(1.05); }
.case-card .cc-img .tag { position: absolute; top: 14px; left: 14px; background: rgba(8, 27, 56, 0.72); color: #fff; }
.case-card .cc-body { padding: 22px 22px 24px; }
.case-card h3 { font-size: 18px; margin-bottom: 8px; }
.case-card .cc-desc { font-size: 14px; color: var(--c-muted); margin-bottom: 16px; }
.case-card .cc-metrics { display: flex; gap: 10px; flex-wrap: wrap; }
.case-card .metric {
  flex: 1; min-width: 100px; background: var(--c-bg-soft); border-radius: 10px;
  padding: 10px 12px; text-align: center;
}
.case-card .metric .m-num { font-size: 18px; font-weight: 700; color: var(--c-brand); }
.case-card .metric .m-label { font-size: 12px; color: var(--c-muted); }

/* 新闻卡（首页三卡 + 列表页） */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.news-card .nc-img { aspect-ratio: 16 / 9; overflow: hidden; }
.news-card .nc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.news-card:hover .nc-img img { transform: scale(1.05); }
.news-card .nc-body { padding: 20px 22px 24px; }
.news-card .nc-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--c-muted); margin-bottom: 12px; }
.news-card h3 { font-size: 17px; line-height: 1.5; margin-bottom: 10px; }
.news-card .nc-summary { font-size: 14px; color: var(--c-muted); }

/* CTA 横幅 */
.cta-band {
  position: relative; overflow: hidden; text-align: center; color: #fff;
  background:
    radial-gradient(700px 340px at 85% 0%, rgba(55, 200, 242, 0.2), transparent 60%),
    linear-gradient(140deg, var(--c-navy) 0%, var(--c-navy-2) 60%, var(--c-brand-deep) 100%);
  padding: 76px 24px;
}
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 14px; }
.cta-band p { color: rgba(255, 255, 255, 0.72); max-width: 560px; margin: 0 auto 32px; font-size: 16.5px; }
.cta-band .cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* 内页 Hero */
.page-hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(720px 380px at 90% 10%, rgba(55, 200, 242, 0.14), transparent 60%),
    linear-gradient(150deg, #06142c 0%, #0a2248 55%, #0d2c5e 100%);
  color: #fff; padding: 72px 0 64px;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 56px 56px;
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.62); margin-bottom: 20px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.35); }
.page-hero h1 { color: #fff; font-size: clamp(30px, 4vw, 44px); margin-bottom: 14px; }
.page-hero .lead { color: rgba(255, 255, 255, 0.74); max-width: 640px; font-size: 17px; }

/* 产品详情块（产品中心） */
.product-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; padding: 72px 0; }
.product-block + .product-block { border-top: 1px solid var(--c-line); }
.product-block .pb-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.product-block .pb-index {
  font-size: 15px; font-weight: 700; color: var(--c-brand); letter-spacing: 0.12em; margin-bottom: 12px;
}
.product-block h2 { font-size: clamp(26px, 3vw, 34px); margin-bottom: 16px; }
.product-block .pb-desc { color: var(--c-muted); margin-bottom: 24px; font-size: 15.5px; }
.pb-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px; }
.pb-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 14.5px; color: var(--c-text); }
.pb-list li svg { flex: none; width: 18px; height: 18px; color: var(--c-brand); margin-top: 3px; }

/* 平台能力三卡（产品中心） */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.cap-card {
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg); padding: 30px 28px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.cap-card:hover { background: rgba(255, 255, 255, 0.09); transform: translateY(-4px); }
.cap-card .c-icon { width: 50px; height: 50px; border-radius: 13px; background: rgba(55, 200, 242, 0.16); color: #7fd0ff; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.cap-card .c-icon svg { width: 25px; height: 25px; }
.cap-card h3 { color: #fff; font-size: 18px; margin-bottom: 10px; }
.cap-card p { color: rgba(255, 255, 255, 0.66); font-size: 14.5px; }

/* 行业方案卡（解决方案页） */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.industry-card {
  display: block; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.industry-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(22, 113, 245, 0.32); }
.industry-card .ic-img { aspect-ratio: 16 / 10; overflow: hidden; position: relative; }
.industry-card .ic-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.industry-card:hover .ic-img img { transform: scale(1.05); }
.industry-card .ic-body { padding: 22px 24px 26px; }
.industry-card h3 { font-size: 18px; margin-bottom: 8px; }
.industry-card .ic-desc { font-size: 14px; color: var(--c-muted); margin-bottom: 14px; }
.industry-card .ic-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* 场景（解决方案页） */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.scene-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 28px 26px; position: relative; }
.scene-card .s-num {
  font-size: 30px; font-weight: 700; color: rgba(22, 113, 245, 0.18);
  position: absolute; top: 18px; right: 24px; letter-spacing: -0.02em;
}
.scene-card h3 { font-size: 17.5px; margin-bottom: 10px; }
.scene-card p { font-size: 14.5px; color: var(--c-muted); }

/* 实施流程（解决方案页，时间轴式） */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step-card {
  position: relative; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); padding: 28px 24px 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step-card .s-dot {
  width: 40px; height: 40px; border-radius: 50%; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, #1671f5, #0d5bd8); color: #fff; font-weight: 700; font-size: 15px;
}
.step-card h3 { font-size: 16.5px; margin-bottom: 8px; }
.step-card p { font-size: 13.5px; color: var(--c-muted); }

/* 案例详情块（案例页） */
.case-block { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 52px; align-items: center; padding: 70px 0; }
.case-block + .case-block { border-top: 1px solid var(--c-line); }
.case-block .cb-visual { position: relative; }
.case-block .cb-visual img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.case-block h2 { font-size: clamp(24px, 2.8vw, 32px); margin-bottom: 6px; }
.case-block .cb-industry { color: var(--c-brand); font-weight: 700; font-size: 14px; margin-bottom: 16px; }
.case-block .cb-desc { color: var(--c-muted); font-size: 15px; margin-bottom: 22px; }
.case-block .cb-points { margin-bottom: 24px; }
.case-block .cb-points li { display: flex; gap: 10px; font-size: 14.5px; padding: 6px 0; color: var(--c-text); }
.case-block .cb-points li svg { width: 18px; height: 18px; color: var(--c-brand); flex: none; margin-top: 3px; }
.cb-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cb-metric { background: var(--c-bg-soft); border-radius: 12px; padding: 14px 16px; }
.cb-metric .m-num { font-size: 22px; font-weight: 700; color: var(--c-brand); }
.cb-metric .m-label { font-size: 12.5px; color: var(--c-muted); }

/* 客户证言 */
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.quote-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 30px 28px; display: flex; flex-direction: column;
}
.quote-card .q-mark { font-size: 44px; line-height: 1; color: rgba(22, 113, 245, 0.22); font-family: Georgia, serif; margin-bottom: 6px; }
.quote-card blockquote { font-size: 15px; color: var(--c-text); flex: 1; margin-bottom: 22px; }
.quote-card .q-person { display: flex; align-items: center; gap: 14px; }
.quote-card .q-avatar {
  width: 44px; height: 44px; border-radius: 50%; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(140deg, #1671f5, #0d5bd8); color: #fff; font-weight: 700; font-size: 16px;
}
.quote-card .q-name { font-weight: 700; color: var(--c-ink); font-size: 14.5px; }
.quote-card .q-role { font-size: 13px; color: var(--c-muted); }

/* 新闻列表页 */
.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-feature {
  grid-column: 1 / -1; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px;
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  overflow: hidden; align-items: center;
}
.news-feature .nf-img { position: relative; min-height: 320px; }
.news-feature .nf-img img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.news-feature .nf-img .tag { position: absolute; top: 18px; left: 18px; background: rgba(8, 27, 56, 0.78); color: #fff; }
.news-feature .nf-body { padding: 34px 40px 34px 0; }
.news-feature .nc-meta { display: flex; gap: 14px; font-size: 13.5px; color: var(--c-muted); margin-bottom: 14px; }
.news-feature h2 { font-size: 24px; line-height: 1.45; margin-bottom: 14px; }
.news-feature .nf-summary { color: var(--c-muted); font-size: 15px; }

/* 关于页 */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-intro .ai-img { position: relative; }
.about-intro .ai-img img { border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }
.about-intro .ai-img img + img { margin-top: 18px; }
.about-intro h2 { font-size: clamp(26px, 3vw, 34px); margin-bottom: 18px; }
.about-intro .ai-text p { color: var(--c-muted); margin-bottom: 16px; font-size: 15.5px; }
.about-intro .ai-text p strong { color: var(--c-ink); }

.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mvv-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 30px 28px; position: relative; overflow: hidden;
}
.mvv-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--c-brand), var(--c-cyan));
}
.mvv-card .m-icon { width: 48px; height: 48px; border-radius: 12px; background: rgba(22, 113, 245, 0.1); color: var(--c-brand); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.mvv-card .m-icon svg { width: 24px; height: 24px; }
.mvv-card h3 { font-size: 18px; margin-bottom: 10px; }
.mvv-card p { font-size: 14.5px; color: var(--c-muted); }

/* 时间轴（发展历程） */
.timeline { max-width: 860px; margin: 0 auto; }
.timeline-item { display: grid; grid-template-columns: 150px 40px 1fr; gap: 0; }
.timeline-item + .timeline-item { margin-top: 34px; }
.timeline-item .tl-year { text-align: right; padding-right: 22px; font-weight: 700; color: var(--c-brand); font-size: 18px; padding-top: 2px; }
.timeline-item .tl-track { display: flex; flex-direction: column; align-items: center; }
.timeline-item .tl-dot {
  width: 16px; height: 16px; border-radius: 50%; background: #fff;
  border: 4px solid var(--c-brand); box-shadow: 0 0 0 5px rgba(22, 113, 245, 0.12);
  align-self: center; justify-self: center; margin-top: 6px;
}
.timeline-item .tl-line { width: 2px; flex: 1; background: var(--c-line); margin-top: 4px; }
.timeline-item:last-child .tl-line { background: transparent; }
.timeline-item .tl-body { padding-left: 26px; padding-bottom: 4px; }
.timeline-item .tl-body h3 { font-size: 17px; margin-bottom: 6px; }
.timeline-item .tl-body p { font-size: 14.5px; color: var(--c-muted); }

/* 联系信息（关于页） */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.contact-card {
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg); padding: 28px 24px;
}
.contact-card .ct-icon { width: 46px; height: 46px; border-radius: 12px; background: rgba(55, 200, 242, 0.16); color: #7fd0ff; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.contact-card .ct-icon svg { width: 22px; height: 22px; }
.contact-card h3 { color: #fff; font-size: 15.5px; margin-bottom: 8px; }
.contact-card p { color: rgba(255, 255, 255, 0.66); font-size: 14px; line-height: 1.7; }
.contact-card a { color: #7fd0ff; }
.contact-card a:hover { color: #fff; }

/* 内容区通用 */
.lead-text { font-size: 17px; color: var(--c-muted); max-width: 680px; }
.center { text-align: center; }
.mt-12 { margin-top: 12px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }

/* 滚动显现 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .solution-card:hover img, .case-card:hover .cc-img img, .news-card:hover .nc-img img, .industry-card:hover .ic-img img { transform: none; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr 1.4fr; }
  .footer-grid .footer-col:nth-child(4) { display: none; }
  .product-grid, .solution-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 960px) {
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch; gap: 4px;
    padding: 18px 24px 26px; border-bottom: 1px solid var(--c-line);
    box-shadow: 0 24px 40px rgba(8, 27, 56, 0.12);
    transform: translateY(-16px); opacity: 0; pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
  .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-link { padding: 13px 12px; font-size: 16px; }
  .nav-link.active::after { left: 12px; right: auto; width: 28px; }
  .nav-toggle { display: flex; }
  .header-tel { display: none; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; padding: 64px 0 72px; }
  .hero-visual { max-width: 640px; }
  .hero-float.f1 { left: 8px; }
  .hero-float.f2 { right: 8px; }
  .product-block { grid-template-columns: 1fr; gap: 36px; padding: 56px 0; }
  .case-block { grid-template-columns: 1fr; gap: 36px; padding: 56px 0; }
  .news-feature { grid-template-columns: 1fr; }
  .news-feature .nf-img { min-height: 240px; }
  .news-feature .nf-body { padding: 28px 26px 34px; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .stat-strip-inner { grid-template-columns: repeat(2, 1fr); gap: 30px 16px; }
  .stat-item:nth-child(3) { border-left: 0; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .product-grid, .solution-grid, .case-grid, .news-grid, .news-list,
  .feature-grid, .cap-grid, .industry-grid, .scene-grid, .quote-grid,
  .mvv-grid, .contact-grid { grid-template-columns: 1fr; }
  .pb-list { grid-template-columns: 1fr; }
  .cb-metrics { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .cb-metric { padding: 12px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 48px 0 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .timeline-item { grid-template-columns: 92px 32px 1fr; }
  .timeline-item .tl-body { padding-left: 18px; }
  .hero-cta .btn { width: 100%; }
  .cta-band .cta-actions .btn { width: 100%; }
  .section-head { margin-bottom: 40px; }
}