/* ============================================================
   工程咨询服务公司官网 - 设计系统
   风格：深蓝政务工程风（参考 xhtc.com.cn 商务稳重 + 现代版式）
   纯静态，零外部依赖（无 CDN 字体/图标库）
   ============================================================ */

:root {
  --primary: #0b3d91;
  --primary-dark: #082b66;
  --primary-light: #2e7bd6;
  --accent: #c9a227;
  --accent-light: #e8c65a;
  --text: #2b2f36;
  --text-light: #666f7d;
  --bg-light: #f5f7fa;
  --white: #ffffff;
  --border: #e3e8ef;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(11, 61, 145, 0.08);
  --shadow-lg: 0 8px 32px rgba(11, 61, 145, 0.14);
  --font: 'Microsoft YaHei', 'PingFang SC', '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);
  background: var(--white);
  line-height: 1.75;
  font-size: 16px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--primary); }
.logo-mark {
  width: 38px; height: 38px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800;
}
.logo small { display: block; font-size: 11px; font-weight: 400; color: var(--text-light); line-height: 1.2; }
.nav-list { display: flex; gap: 6px; }
.nav-list a {
  display: block; padding: 8px 14px; border-radius: 6px;
  color: var(--text); font-size: 15px; transition: all .2s;
}
.nav-list a:hover, .nav-list a.active { color: var(--primary); background: rgba(11, 61, 145, 0.07); }
.nav-cta {
  background: var(--accent); color: var(--primary-dark) !important; border-radius: 8px;
  padding: 9px 19px !important; font-weight: 800;
}
.nav-cta:hover { background: var(--accent-light); }
.nav-tel {
  background: var(--primary); color: #fff !important; border-radius: 8px;
  display: flex; align-items: center; font-size: 17px; font-weight: 700;
  padding: 8px 16px !important; letter-spacing: .3px;
}
.nav-tel:hover { background: var(--primary-light); color: #fff !important; }
.menu-toggle { display: none; background: none; border: 0; font-size: 24px; color: var(--primary); cursor: pointer; }

/* ---------- Hero 横幅（V2：信息型首屏） ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  padding: 58px 0 56px;
  background:
    linear-gradient(100deg,
      rgba(5, 26, 62, .95) 0%,
      rgba(8, 43, 102, .90) 32%,
      rgba(11, 61, 145, .66) 60%,
      rgba(20, 80, 160, .34) 100%),
    url('../img/city-1.jpg') center / cover no-repeat;
}
/* WebP 优先；不支持 image-set 的浏览器沿用上面的 JPG */
@supports (background-image: image-set(url(x) type('image/webp'))) {
  .hero {
    background:
      linear-gradient(100deg,
        rgba(5, 26, 62, .95) 0%,
        rgba(8, 43, 102, .90) 32%,
        rgba(11, 61, 145, .66) 60%,
        rgba(20, 80, 160, .34) 100%),
      image-set(
        url('../img/city-1.webp') type('image/webp'),
        url('../img/city-1.jpg')  type('image/jpeg')
      ) center / cover no-repeat;
  }
}
.hero::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(circle at 88% 10%, rgba(201,162,39,.16) 0, transparent 46%);
}
.hero .container { position: relative; z-index: 2; }

.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 42px; align-items: start; }
.hero-kicker {
  display: inline-block; font-size: 13px; letter-spacing: 1px;
  color: var(--accent-light); border: 1px solid rgba(232,198,90,.5);
  border-radius: 20px; padding: 5px 15px; margin-bottom: 16px;
}
.hero h1 { font-size: 40px; line-height: 1.3; font-weight: 800; margin-bottom: 20px; letter-spacing: -.3px; }
.hero h1 em { font-style: normal; color: var(--accent-light); }

/* 业务品类胶囊：让访客一眼扫到"做什么" */
.hero-pills { display: flex; flex-wrap: wrap; gap: 9px; list-style: none; }
.hero-pills li {
  display: flex; align-items: center; gap: 7px;
  background: rgba(255,255,255,.13); border: 1px solid rgba(255,255,255,.34);
  color: #fff; border-radius: 8px; padding: 8px 15px;
  font-size: 15px; font-weight: 600;
}
.hero-pills li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-light); }
.hero-pills li.hot { background: var(--accent); border-color: var(--accent); color: var(--primary-dark); }
.hero-pills li.hot::before { background: var(--primary-dark); }

.hero-trust {
  display: flex; flex-wrap: wrap; gap: 8px 30px;
  margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.18);
}
.hero-trust div { display: flex; align-items: baseline; gap: 7px; }
.hero-trust b { color: var(--accent-light); font-size: 22px; font-weight: 800; }
.hero-trust span { color: rgba(255,255,255,.88); font-size: 14px; }

/* Hero 联系卡：联系方式不依赖导航，首屏即可转化 */
.hero-card {
  background: rgba(255,255,255,.98); border-radius: 12px;
  padding: 22px 22px 18px; color: var(--text);
  box-shadow: 0 18px 46px rgba(3,18,44,.4);
}
.hc-top { font-size: 13px; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 8px; }
.hc-top span { background: #eaf1fb; border-radius: 20px; padding: 4px 11px; font-size: 12px; font-weight: 600; }
.hc-tel { display: block; font-size: 29px; font-weight: 800; color: var(--primary); letter-spacing: -.5px; margin: 10px 0 3px; }
.hc-tel:hover { color: var(--accent); }
.hc-sub { font-size: 12.5px; color: var(--text-light); }
.hc-wechat {
  display: flex; gap: 10px; align-items: flex-start;
  margin: 14px 0; padding: 12px 0;
  border-top: 1px dashed var(--border); border-bottom: 1px dashed var(--border);
  font-size: 12.5px; color: var(--text-light); line-height: 1.6;
}
.hc-wechat svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; stroke: var(--primary); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.hc-wechat b { color: var(--primary); display: block; font-size: 13.5px; }
.hc-go {
  display: block; text-align: center; background: var(--accent); color: var(--primary-dark);
  font-weight: 800; font-size: 16px; padding: 13px; border-radius: 8px; transition: all .2s;
}
.hc-go:hover { background: var(--accent-light); transform: translateY(-2px); }
.hc-go2 {
  display: block; text-align: center; border: 1.5px solid var(--primary); color: var(--primary);
  font-weight: 700; font-size: 14.5px; padding: 10px; border-radius: 8px; margin-top: 9px; transition: all .2s;
}
.hc-go2:hover { background: rgba(11,61,145,.06); }
.hc-meta { font-size: 11.5px; color: #8a94a3; margin-top: 11px; text-align: center; }
.btn {
  display: inline-block; padding: 12px 30px; border-radius: 6px;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: all .2s; border: 0;
}
.btn-primary { background: var(--accent); color: var(--primary-dark); }
.btn-primary:hover { background: var(--accent-light); transform: translateY(-2px); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.6); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }

/* ---------- 通用区块 ---------- */
.section { padding: 76px 0; }
.section-alt { background: var(--bg-light); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .tag {
  display: inline-block; font-size: 13px; color: var(--accent);
  border: 1px solid rgba(201,162,39,.5); padding: 3px 14px; border-radius: 20px;
  margin-bottom: 12px; letter-spacing: 2px;
}
.section-head h2 { font-size: 30px; color: var(--primary-dark); font-weight: 800; }
.section-head .bar { width: 48px; height: 3px; background: var(--accent); margin: 14px auto 0; border-radius: 2px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--white); border-radius: var(--radius);
  border: 1px solid var(--border); padding: 28px 24px;
  transition: all .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card .icon {
  width: 52px; height: 52px; border-radius: 10px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(11, 61, 145, .08); color: var(--primary); font-size: 24px;
}
.card h3 { font-size: 17px; margin-bottom: 10px; color: var(--primary-dark); }
.card p { color: var(--text-light); font-size: 14px; }
.card .more { margin-top: 14px; font-size: 13px; color: var(--primary); font-weight: 600; }

/* ---------- 数据亮点 ---------- */
.stats {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  color: #fff; padding: 56px 0;
}
.stats .grid { grid-template-columns: repeat(4, 1fr); text-align: center; }
.stat-num { font-size: 40px; font-weight: 800; color: var(--accent-light); }
.stat-label { margin-top: 6px; color: rgba(255,255,255,.8); font-size: 14px; }

/* ---------- 部门标签 ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.tag-item {
  padding: 8px 20px; border-radius: 24px; font-size: 14px;
  background: var(--white); color: var(--primary);
  border: 1px solid rgba(11,61,145,.25); transition: all .2s;
}
.tag-item:hover { background: var(--primary); color: #fff; }

/* ---------- 流程时间线 ---------- */
.timeline { position: relative; max-width: 900px; margin: 0 auto; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(var(--accent), var(--primary-light)); transform: translateX(-50%);
}
.tl-item { position: relative; width: 50%; padding: 0 40px 36px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; }
.tl-dot {
  position: absolute; top: 4px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 3px solid #fff; box-shadow: 0 0 0 3px var(--accent);
}
.tl-item:nth-child(odd) .tl-dot { right: -7px; }
.tl-item:nth-child(even) .tl-dot { left: -7px; }
.tl-item h4 { font-size: 16px; color: var(--primary-dark); margin-bottom: 6px; }
.tl-item p { font-size: 14px; color: var(--text-light); }

/* ---------- 案例卡片 ---------- */
.case-card { overflow: hidden; }
.case-card .cover {
  height: 160px; border-radius: 6px; margin-bottom: 16px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.9); font-size: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
}
.case-card .case-tag {
  display: inline-block; font-size: 12px; color: var(--accent);
  border: 1px solid rgba(201,162,39,.4); padding: 1px 10px; border-radius: 12px; margin-bottom: 8px;
}
.case-card h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; }
.case-card .dept { font-size: 12px; color: var(--text-light); }

/* ---------- 新闻列表 ---------- */
.news-list .news-item {
  display: flex; gap: 18px; align-items: center;
  padding: 18px 8px; border-bottom: 1px dashed var(--border); transition: background .2s;
}
.news-item:hover { background: rgba(11,61,145,.03); }
.news-item .date {
  flex-shrink: 0; width: 64px; text-align: center;
  background: var(--bg-light); border-radius: 8px; padding: 8px 0;
}
.news-item .date b { display: block; font-size: 20px; color: var(--primary); }
.news-item .date span { font-size: 12px; color: var(--text-light); }
.news-item h4 { font-size: 15px; font-weight: 600; }
.news-item h4:hover { color: var(--primary); }
.news-item p { font-size: 13px; color: var(--text-light); margin-top: 4px; }

/* ---------- 资质证书墙 ---------- */
.qual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.qual-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 24px; text-align: center; transition: all .25s; background: var(--white);
}
.qual-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.qual-card .q-icon {
  width: 70px; height: 70px; margin: 0 auto 16px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff; font-size: 30px; display: flex; align-items: center; justify-content: center;
}
.qual-card h3 { font-size: 16px; color: var(--primary-dark); margin-bottom: 8px; }
.qual-card p { font-size: 13px; color: var(--text-light); }

/* ---------- 联系 CTA ---------- */
.cta {
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  color: #fff; text-align: center; padding: 60px 24px;
}
.cta h2 { font-size: 28px; margin-bottom: 12px; }
.cta p { color: rgba(255,255,255,.85); margin-bottom: 26px; }

/* ---------- 联系页 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 48px; }
.contact-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 24px; text-align: center; background: var(--white);
}
.contact-card .icon {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%;
  background: rgba(11,61,145,.08); color: var(--primary); font-size: 24px;
  display: flex; align-items: center; justify-content: center;
}

/* ---------- SVG 图标（替代 emoji，线性风格） ---------- */
.card .icon svg,
.contact-card .icon svg,
.icon svg {
  width: 26px; height: 26px; display: block;
  stroke: currentColor; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round;
  fill: none;
}
.icon svg .f { fill: currentColor; stroke: none; }
.q-icon svg {
  width: 30px; height: 30px; display: block;
  stroke: currentColor; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round; fill: none;
}
.case-card .cover svg {
  width: 44px; height: 44px; display: block;
  stroke: var(--primary); stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round; fill: none;
}
.nav-tel svg {
  width: 16px; height: 16px; margin-right: 5px;
  stroke: currentColor; stroke-width: 1.9;
  stroke-linecap: round; stroke-linejoin: round;
  fill: none;
}
/* 服务网络区块 */
.network-wrap { max-width: 900px; margin: 0 auto; }
.network-wrap img {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius); box-shadow: var(--shadow-lg);
}
.network-points { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-top: 30px; }
.network-points div {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
}
.network-points strong { display: block; color: var(--primary-dark); margin-bottom: 6px; font-size: 16px; }
.network-points span { color: var(--text-light); font-size: 14px; line-height: 1.75; }
@media (max-width: 768px) { .network-points { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 18px; margin-top: 30px; } }
.contact-card h3 { font-size: 15px; color: var(--text-light); margin-bottom: 8px; }
.contact-card p { font-size: 16px; font-weight: 600; color: var(--primary-dark); }
.contact-form {
  max-width: 720px; margin: 0 auto; background: var(--white);
  border: 1px solid var(--border); border-radius: 12px; padding: 36px;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border);
  border-radius: 6px; font-family: inherit; font-size: 14px; transition: border .2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); }
.form-group textarea { min-height: 130px; resize: vertical; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0a1f40; color: rgba(255,255,255,.7); padding: 48px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 36px; padding-bottom: 36px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-grid p, .footer-grid a { font-size: 13px; color: rgba(255,255,255,.65); line-height: 2; }
.footer-grid a:hover { color: var(--accent-light); }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12); text-align: center;
  padding: 16px 0; font-size: 12px; color: rgba(255,255,255,.5);
}
.footer-bottom a { color: rgba(255,255,255,.5); text-decoration: none; }
.footer-bottom a:hover { color: var(--accent-light); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .qual-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .menu-toggle { display: block; }
  .nav-list {
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; padding: 12px 24px 20px;
    border-bottom: 1px solid var(--border); display: none;
  }
  .nav-list.open { display: flex; }
  .hero { padding: 64px 0 80px; }
  .hero h1 { font-size: 30px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .stats .grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .timeline::before { left: 8px; }
  .tl-item, .tl-item:nth-child(odd), .tl-item:nth-child(even) { width: 100%; left: 0; text-align: left; padding: 0 0 30px 32px; }
  .tl-item:nth-child(odd) .tl-dot, .tl-item:nth-child(even) .tl-dot { left: 2px; right: auto; }
  .qual-grid, .contact-cards { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* 通用辅助 */
.text-center { text-align: center; }
.mt-16 { margin-top: 16px; }
.mt-32 { margin-top: 32px; }
.page-banner {
  position: relative; overflow: hidden; color: #fff;
  padding: 54px 0 58px;
  background:
    linear-gradient(100deg,
      rgba(5, 26, 62, .95) 0%,
      rgba(8, 43, 102, .90) 34%,
      rgba(11, 61, 145, .68) 62%,
      rgba(20, 80, 160, .36) 100%),
    url('../img/city-1.jpg') center / cover no-repeat;
}
@supports (background-image: image-set(url(x) type('image/webp'))) {
  .page-banner {
    background:
      linear-gradient(100deg,
        rgba(5, 26, 62, .95) 0%,
        rgba(8, 43, 102, .90) 34%,
        rgba(11, 61, 145, .68) 62%,
        rgba(20, 80, 160, .36) 100%),
      image-set(
        url('../img/city-1.webp') type('image/webp'),
        url('../img/city-1.jpg')  type('image/jpeg')
      ) center / cover no-repeat;
  }
}
.page-banner h1 { font-size: 32px; font-weight: 800; position: relative; z-index: 2; color: #fff; }
.page-banner p { color: rgba(255,255,255,.86); margin-top: 8px; position: relative; z-index: 2; }
@media (max-width: 768px) {
  .page-banner { padding: 34px 0 38px; }
  .page-banner h1 { font-size: 25px; }
  .page-banner p { font-size: 14px; }
}

/* ---------- 图片展示区（办公/团队） ---------- */
.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.photo-grid figure { margin: 0; border-radius: var(--radius); overflow: hidden; background: var(--white); border: 1px solid var(--border); }
.photo-grid img { width: 100%; height: 220px; object-fit: cover; display: block; }
.photo-grid figcaption { padding: 12px 16px; font-size: 14px; color: var(--text-light); }
@media (max-width: 768px) { .photo-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .photo-grid { grid-template-columns: 1fr; } }

/* ---------- 案例卡配图 ---------- */
.case-card .cover { height: 180px; overflow: hidden; }
.case-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ---------- 资质证书展示（真实证照） ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.cert-grid figure { margin: 0; }
.cert-grid a { display: block; text-decoration: none; }
.cert-grid img {
  width: 100%; height: 340px; object-fit: contain;
  background: #fff; border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 6px 20px rgba(11,61,145,.10);
  transition: transform .25s, box-shadow .25s;
}
.cert-grid img:hover { transform: translateY(-4px); box-shadow: 0 14px 32px rgba(11,61,145,.22); }
.cert-grid figcaption { text-align: center; margin-top: 12px; font-size: 13.5px; font-weight: 600; color: var(--primary-dark); line-height: 1.5; }
.cert-note { text-align: center; margin-top: 26px; font-size: 13px; color: #666f7d; }
@media (max-width: 900px) { .cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .cert-grid { grid-template-columns: 1fr; } .cert-grid img { height: 300px; } }
/* ---------- 服务承诺卡片 ---------- */
.promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.promise-card {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 22px; text-align: center; transition: all .25s;
}
.promise-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.promise-card svg {
  width: 30px; height: 30px; display: block; margin: 0 auto 14px;
  stroke: var(--primary); stroke-width: 1.7; fill: none;
  stroke-linecap: round; stroke-linejoin: round;
}
.promise-card strong { display: block; color: var(--primary-dark); font-size: 16px; margin-bottom: 8px; }
.promise-card span { color: var(--text-light); font-size: 13.5px; line-height: 1.75; }
@media (max-width: 900px) { .promise-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .promise-grid { grid-template-columns: 1fr; } }
/* ---------- 首页资质能力区块 ---------- */
.qual-strip { display: grid; grid-template-columns: 330px 1fr; gap: 24px; align-items: stretch; }
.qual-hero {
  background: linear-gradient(140deg, #0a2f6e 0%, #0d3d8a 45%, #1e63b8 100%);
  color: #fff; border-radius: var(--radius); padding: 32px 28px;
  position: relative; overflow: hidden;
}
.qual-hero::after {
  content: ''; position: absolute; right: -50px; bottom: -50px;
  width: 180px; height: 180px; border-radius: 50%;
  background: rgba(255,255,255,.06);
}
.qual-hero .qh-badge {
  display: inline-block; padding: 6px 18px; border-radius: 20px; margin-bottom: 18px;
  background: linear-gradient(135deg, #f0d264, #c9a227); color: #0a2f6e;
  font-weight: 800; font-size: 15px; letter-spacing: 3px;
}
.qual-hero h3 { font-size: 20px; line-height: 1.55; margin-bottom: 14px; color: #fff; }
.qual-hero p { color: rgba(255,255,255,.84); font-size: 14px; line-height: 1.9; }
.qual-hero .qh-note { color: #f0d264; font-size: 13px; margin-top: 10px; }
.qual-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.qual-cards > div {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 22px; transition: all .25s;
}
.qual-cards > div:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: transparent; }
.qual-cards strong { display: block; color: var(--primary-dark); font-size: 15.5px; margin-bottom: 7px; }
.qual-cards span { color: var(--text-light); font-size: 13px; line-height: 1.75; }
@media (max-width: 900px) { .qual-strip { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .qual-cards { grid-template-columns: 1fr; } }
/* ---------- 文章页 ---------- */
.article { max-width: 820px; margin: 0 auto; color: #3d4756; font-size: 15.5px; line-height: 2; }
.article-meta { color: #8a94a3; font-size: 13.5px; margin-bottom: 26px; padding-bottom: 18px; border-bottom: 1px dashed var(--border); }
.article h2 { font-size: 19px; color: var(--primary-dark); margin: 34px 0 14px; padding-left: 14px; position: relative; }
.article h2::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 2px; background: linear-gradient(180deg, #f0d264, #c9a227); }
.article p { margin-bottom: 14px; }
.article ol, .article ul { margin: 0 0 16px 22px; }
.article li { margin-bottom: 8px; line-height: 1.9; }
.article strong { color: var(--primary-dark); }
.article-cta { max-width: 820px; margin: 44px auto 0; padding: 28px 30px; background: linear-gradient(135deg, #f4f9ff, #e8f2fd); border: 1px solid #d6e6f8; border-radius: var(--radius); text-align: center; }
.article-cta h3 { font-size: 18px; color: var(--primary-dark); margin-bottom: 10px; }
.article-cta p { color: var(--text-light); font-size: 14px; margin-bottom: 18px; }
.news-list a.news-item { display: flex; text-decoration: none; color: inherit; transition: background .2s; }
.news-list a.news-item:hover { background: #f6faff; }

/* ============================================================
   V2 首页改版（2026-09-30）
   主营业务品类卡 / 资质证照条 / 数据直出 / 移动端吸底条
   ============================================================ */
.section-sub { margin-top: 12px; font-size: 14.5px; color: var(--text-light); }

/* ---------- 主营业务（5 品类卡） ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.biz-card.biz-more { background: linear-gradient(140deg, #f2f7ff, #e8f1fd); border-color: #d6e6f8; border-top-color: var(--accent); }
.biz-card.biz-more .biz-no { color: rgba(11,61,145,.16); }
.biz-card.biz-more .biz-meta a { color: var(--primary); font-weight: 700; }
.biz-card.biz-more .biz-meta a:hover { color: var(--accent); }
.biz-card {
  position: relative; background: var(--white); border: 1px solid var(--border);
  border-top: 3px solid var(--primary); border-radius: var(--radius);
  padding: 24px 20px 20px; transition: all .25s;
}
.biz-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-top-color: var(--accent); }
.biz-no {
  position: absolute; top: 12px; right: 14px;
  font-size: 22px; font-weight: 800; color: rgba(11,61,145,.10); letter-spacing: -1px;
}
.biz-card h3 { font-size: 17px; color: var(--primary-dark); margin-bottom: 10px; line-height: 1.45; }
.biz-card p { font-size: 13.5px; color: var(--text-light); line-height: 1.75; min-height: 72px; }
.biz-meta {
  font-size: 12.5px; color: var(--text-light); line-height: 1.6;
  margin-top: 10px; padding-top: 9px; border-top: 1px dashed var(--border);
}
.biz-meta span { display: inline-block; min-width: 34px; margin-right: 6px; color: var(--primary); font-weight: 700; }

/* ---------- 资质证照缩略条（信任前置） ---------- */
.cert-strip-section { padding: 0 0 64px; }
.cert-strip-head {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 16px;
  padding-bottom: 16px; margin-bottom: 22px; border-bottom: 1px solid var(--border);
}
.cert-strip-head b { font-size: 20px; color: var(--primary-dark); font-weight: 800; }
.cert-strip-head span { font-size: 13.5px; color: var(--text-light); }
.cert-strip-head a { margin-left: auto; font-size: 14px; color: var(--primary); font-weight: 700; }
.cert-strip-head a:hover { color: var(--accent); }
.cert-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.cert-strip a { display: block; text-align: center; }
.cert-strip img {
  width: 100%; height: 172px; object-fit: contain; background: #fff;
  border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 4px 16px rgba(11,61,145,.08); transition: all .25s;
}
.cert-strip a:hover img { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(11,61,145,.20); }
.cert-strip span { display: block; margin-top: 10px; font-size: 13px; font-weight: 600; color: var(--primary-dark); }

/* ---------- 数据条（数字直出，不依赖 JS 动画） ---------- */
.stat-num-static { font-size: 40px; font-weight: 800; color: var(--accent-light); }

/* ---------- CTA 电话 ---------- */
.cta-tel { margin-top: 16px; font-size: 15px; }
.cta-tel a { color: #fff; border-bottom: 1px solid rgba(255,255,255,.5); padding-bottom: 2px; }
.cta-tel a:hover { color: var(--accent-light); border-color: var(--accent-light); }

/* ---------- 导航电话图标配色 ---------- */
.nav-tel svg { stroke: var(--accent-light); }

/* ---------- 移动端吸底联系条 ---------- */
.mobile-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 9990;
  gap: 10px; padding: 9px 12px; background: rgba(255,255,255,.98);
  border-top: 1px solid var(--border); box-shadow: 0 -4px 18px rgba(11,61,145,.10);
}
.mobile-bar a {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 8px; border-radius: 8px; font-size: 15px; font-weight: 700;
}
.mobile-bar svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.mobile-bar .mb-tel { background: var(--primary); color: #fff; }
.mobile-bar .mb-chat { background: #e9f5ec; color: #157a3a; border: 1px solid #bfe3c9; }

/* ---------- V2 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .hero h1 { font-size: 34px; }
  .hero-card { max-width: 430px; }
  .biz-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .biz-card p { min-height: 0; }
  .cert-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 768px) {
  .hero { padding: 40px 0 44px; }
  .hero h1 { font-size: 27px; letter-spacing: 0; }
  .hero-kicker { font-size: 12px; padding: 4px 12px; }
  .hero-pills li { font-size: 14px; padding: 7px 12px; }
  .hero-trust { gap: 6px 20px; margin-top: 18px; padding-top: 14px; }
  .hero-trust b { font-size: 19px; }
  .hero-trust span { font-size: 13px; }
  .hero-card { max-width: none; }
  .hc-tel { font-size: 26px; }
  .biz-grid { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .cert-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cert-strip img { height: 150px; }
  .cert-strip-head a { margin-left: 0; }
  .cert-strip-section { padding-bottom: 44px; }
  .stat-num-static { font-size: 32px; }
  body.has-mobile-bar { padding-bottom: 64px; }
  .mobile-bar { display: flex; }
  /* AI 客服悬浮球在手机上收小并贴角，避免压住首屏转化按钮 */
  .pz-chat-fab { bottom: 72px !important; right: 12px !important; width: 58px !important; height: 58px !important; }
  .pz-chat-fab svg { width: 27px !important; height: 27px !important; }
}
@media (max-width: 480px) {
  .cert-strip { grid-template-columns: minmax(0, 1fr); }
  .cert-strip img { height: 190px; }
}