/* =========================================================
   苏州龙将计算机系统有限公司 官网 - 共享样式
   设计规格：内容区 1200px 居中
   主色 #135DFF · 深蓝 #0B1C3F · 正文 #555F7A · 浅底 #F4F7FC
   （视觉语言参考 haoma360.cn：深蓝科技风 + 白/浅蓝/深蓝区块交替）
   ========================================================= */

:root {
  --primary: #135DFF;
  --primary-2: #338FFF;
  --primary-soft: #EEF4FF;
  --navy: #0B1C3F;
  --navy-2: #0A1633;
  --text: #555F7A;
  --text-deep: #55607A;
  --muted: #6B7589;
  --muted-light: #8A94A6;
  --light-bg: #F4F7FC;
  --card-bg: #F8FAFF;
  --border: #E5EDFA;
  --border-deep: #E4E8F0;
  --border-nav: #E3E8F2;
  --white: #FFFFFF;

  --grad-hero: linear-gradient(180deg, #0A1A4A 0%, #0F3080 55%, #1A52B8 100%);
  --grad-banner: linear-gradient(180deg, #081438 0%, #0D2B73 60%, #14429E 100%);
  --grad-deep: linear-gradient(180deg, #081747 0%, #12388F 55%, #1F5CCC 100%);
  --grad-icon: linear-gradient(135deg, #125CFC 0%, #338FFF 100%);

  --footer-link: #8FA6D8;
  --footer-line: #1E355F;
  --footer-muted: #5F7AA8;

  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans SC", -apple-system, "Segoe UI", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial", "PingFang SC", sans-serif;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;

  /* ---- 图标尺寸标准（统一规范） ---- */
  --ico-xs: 14px;   /* 面包屑、小标签内 */
  --ico-sm: 16px;   /* 列表要点、按钮内 */
  --ico-md: 20px;   /* 导航、行内图标 */
  --ico-lg: 32px;   /* 卡片 / 列表主图标 */
  --ico-xl: 42px;   /* 大圆形图标 */
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; outline: none; background: none; }
input, textarea, select { font-family: inherit; border: none; outline: none; }
ul { list-style: none; }

.container {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 20px;
}

/* 图标 */
.ic { width: 1em; height: 1em; display: inline-block; vertical-align: -0.15em; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ic-fill { fill: currentColor; stroke: none; }

/* ============ 顶部导航 ============ */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s, border-color .25s, background .25s;
}
.site-nav.scrolled { background: #fff; border-color: var(--border-nav, #E3E8F2); box-shadow: 0 4px 20px rgba(11, 28, 63, .07); }
.nav-inner {
  width: 1200px; max-width: 100%; margin: 0 auto; padding: 0 20px;
  height: 72px; display: flex; align-items: center; gap: 28px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-img {
  height: 42px; width: auto; display: block;
  filter: drop-shadow(0 3px 5px rgba(0, 0, 0, .18));
}
.nav-logo-text { display: flex; align-items: center; }
.nav-logo-cn { font-size: 17px; font-weight: 700; color: var(--navy); letter-spacing: .5px; white-space: nowrap; }

.nav-menu { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.nav-menu a { font-size: 15px; color: var(--text-deep); transition: color .2s; position: relative; padding: 4px 0; }
.nav-menu a:hover { color: var(--primary); }
.nav-menu a.active { color: var(--primary); font-weight: 600; }
.nav-menu a.active::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: -3px; width: 22px; height: 2px; background: var(--primary); border-radius: 2px;
}
.nav-tel { display: flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: var(--r-sm); transition: background .2s; margin-left: 6px; }
.nav-tel:hover { background: var(--primary-soft); }
.nav-tel-ico { width: 32px; height: 32px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 16px; }
.nav-tel-text { display: flex; flex-direction: column; line-height: 1.2; }
.nav-tel-label { font-size: 11px; color: var(--muted); }
.nav-tel-num { font-size: 15px; font-weight: 700; color: var(--primary); font-family: var(--font-num); letter-spacing: .5px; }
.nav-cta {
  background: var(--primary); color: #fff; font-size: 14px; font-weight: 500;
  padding: 10px 22px; border-radius: var(--r-sm); transition: background .2s, transform .2s;
}
.nav-cta:hover { background: #0d4fe0; transform: translateY(-1px); }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: var(--r-sm); align-items: center; justify-content: center; flex-direction: column; gap: 5px; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--navy); border-radius: 2px; transition: .25s; }
.nav-toggle:hover { background: #F0F4FD; }

/* ============ 通用板块 ============ */
.section { padding: 88px 0; }
.section-white { background: var(--white); }
.section-light { background: var(--light-bg); }
.section-deep { background: var(--grad-deep); }
.section--pb-big { padding-bottom: 100px; }
.section--pt-0 { padding-top: 0; }

.section-head { text-align: center; margin-bottom: 48px; }
.section-head .en-tag {
  display: inline-block; font-size: 12px; letter-spacing: 2px; color: var(--primary);
  font-weight: 600; text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 { font-size: 34px; font-weight: 700; color: var(--navy); line-height: 1.35; }
.section-head .sub { font-size: 15px; color: var(--muted); margin-top: 12px; }
.section-head.light h2 { color: #FBFBFB; }
.section-head.light .en-tag { color: #5CA1FF; }
.section-head.light .sub { color: #B9C8F0; }
.section-head.left { text-align: left; }
.section-head.left h2 { font-size: 28px; margin-top: 8px; }
.section-head.left .sub { margin-top: 0; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: #fff; font-size: 15px;
  padding: 14px 32px; border-radius: var(--r-sm);
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn:hover { background: #0d4fe0; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(19, 93, 255, .28); }
.btn-white { background: #fff; color: var(--primary); font-weight: 600; }
.btn-white:hover { background: #fff; transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0, 26, 102, .4); }
.btn-outline { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .45); }
.btn-outline:hover { background: rgba(255, 255, 255, .1); }
.btn-lg { padding: 17px 44px; font-size: 16px; }

/* ============ 首屏 Hero ============ */
.hero {
  position: relative; overflow: hidden;
  background: var(--grad-hero);
  padding: 176px 0 96px;
}
.hero-deco { position: absolute; border-radius: 50%; pointer-events: none; }
.hero-deco-1 { width: 460px; height: 460px; right: 140px; top: -80px; background: radial-gradient(circle, rgba(56, 140, 255, .38) 0%, rgba(56, 140, 255, 0) 70%); }
.hero-deco-2 { width: 520px; height: 520px; left: -120px; bottom: -180px; background: radial-gradient(circle, rgba(80, 180, 255, .28) 0%, rgba(80, 180, 255, 0) 70%); }
.hero-grid {
  position: absolute; inset: 0; opacity: .16; pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, .35) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .35) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 70% 40%, #000 0%, transparent 72%);
}
.hero-inner { position: relative; z-index: 2; max-width: 760px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .22);
  color: #CFE1FF; font-size: 13px; padding: 7px 16px; border-radius: 999px; margin-bottom: 24px;
}
.hero-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #4FD1C5; box-shadow: 0 0 0 4px rgba(79, 209, 197, .25); }
.hero h1 { font-size: 50px; font-weight: 700; color: #fff; line-height: 1.3; }
.hero h1 .hl { color: #7FB4FF; }
.hero p.desc { font-size: 17px; color: #B9C8F0; margin-top: 20px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; margin-top: 36px; flex-wrap: wrap; }
.hero-tags { display: flex; gap: 10px; margin-top: 34px; flex-wrap: wrap; }
.hero-tags span {
  font-size: 12px; color: #A9C4F2; border: 1px solid rgba(255, 255, 255, .2);
  padding: 5px 12px; border-radius: 999px; background: rgba(255, 255, 255, .06);
}

/* 数据条 */
.stats-row {
  display: flex; justify-content: space-between; gap: 20px;
  padding: 34px 0; margin-top: 64px;
  border-top: 1px solid rgba(255, 255, 255, .16);
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}
.stat { text-align: center; flex: 1; }
.stat-num { font-size: 34px; font-weight: 700; color: #fff; font-family: var(--font-num); letter-spacing: 1px; }
.stat-num .unit { font-size: 18px; font-weight: 600; margin-left: 2px; }
.stat-label { font-size: 13px; color: #B9C8F0; margin-top: 8px; }

/* ============ 卡片通用 ============ */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--r-md); transition: .28s; }

/* 业务/服务网格 */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 32px 28px 30px; transition: .3s;
}
.svc-card::after {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: var(--grad-icon); transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.svc-card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px rgba(11, 28, 63, .1); border-color: #D5E4FF; }
.svc-card:hover::after { transform: scaleX(1); }
.svc-icon {
  width: 54px; height: 54px; border-radius: 14px; background: var(--grad-icon);
  color: #fff; font-size: 26px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; box-shadow: 0 8px 18px rgba(19, 93, 255, .25);
}
.svc-card h3 { font-size: 19px; font-weight: 600; color: var(--navy); margin-bottom: 12px; }
.svc-card p { font-size: 13px; color: var(--muted); line-height: 1.85; }
.svc-list { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.svc-list span { font-size: 12px; color: var(--primary); background: var(--primary-soft); padding: 4px 10px; border-radius: 4px; }
.svc-more { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--primary); margin-top: 18px; font-weight: 500; }
.svc-card:hover .svc-more .ic { transform: translateX(3px); }
.svc-more .ic { transition: transform .25s; }

/* 优势网格 */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 28px 24px; transition: .3s; }
.adv-card:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(11, 28, 63, .09); border-color: #D5E4FF; }
.adv-icon {
  width: 48px; height: 48px; border-radius: 12px; background: var(--primary-soft);
  color: var(--primary); font-size: 24px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.adv-card h4 { font-size: 18px; font-weight: 600; color: var(--navy); margin-bottom: 12px; }
.adv-card p { font-size: 13px; color: var(--muted); line-height: 1.8; }

/* 深蓝区 小图标卡 */
.reason-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.reason-card {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--r-md); padding: 28px 24px; transition: .3s;
}
.reason-card:hover { background: rgba(255, 255, 255, .12); transform: translateY(-5px); }
.reason-icon {
  width: 46px; height: 46px; border-radius: 12px; background: rgba(255, 255, 255, .14);
  color: #9CC4FF; font-size: 22px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.reason-card h4 { font-size: 17px; font-weight: 600; color: #fff; margin-bottom: 12px; }
.reason-card p { font-size: 13px; color: #B9C8F0; line-height: 1.8; }

/* 案例 */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 26px 24px; transition: .3s; }
.case-card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px rgba(11, 28, 63, .1); border-color: #D5E4FF; }
.case-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.case-logo {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
}
.case-name { font-size: 17px; font-weight: 600; color: var(--navy); }
.case-tag { font-size: 12px; color: var(--muted-light); margin-top: 2px; }
.case-desc { font-size: 13px; color: var(--muted); line-height: 1.85; }
.case-data { display: flex; gap: 36px; margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--border-deep); }
.case-data .c-stat { text-align: left; }
.case-data .c-stat b { display: block; font-size: 18px; color: var(--primary); font-family: var(--font-num); }
.case-data .c-stat span { font-size: 12px; color: var(--muted-light); }
.case-note { text-align: center; font-size: 12px; color: var(--muted-light); margin-top: 28px; line-height: 1.8; }

/* 流程 */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 30px 26px; transition: .3s; }
.step-card:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(11, 28, 63, .09); }
.step-num { font-size: 34px; font-weight: 700; color: #E4ECFB; font-family: var(--font-num); line-height: 1; margin-bottom: 14px; transition: color .3s; }
.step-card:hover .step-num { color: #BBD5FF; }
.step-card h4 { font-size: 18px; font-weight: 600; color: var(--navy); margin-bottom: 12px; }
.step-card p { font-size: 13px; color: var(--muted); line-height: 1.8; }

/* 新闻三栏 */
.news-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; }
.news-col h3 { font-size: 19px; font-weight: 600; color: var(--navy); position: relative; padding-bottom: 14px; }
.news-col h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 40px; height: 3px; background: var(--primary); border-radius: 2px; }
.news-item { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border-deep); }
.news-item:last-child { border-bottom: none; }
.news-item:hover .news-title { color: var(--primary); }
.news-title { font-size: 13px; color: var(--text-deep); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; transition: color .2s; }
.news-date { font-size: 12px; color: var(--muted-light); flex-shrink: 0; }

/* 新闻列表页 */
.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; transition: .3s; }
.news-card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px rgba(11, 28, 63, .1); border-color: #D5E4FF; }
.news-thumb { height: 150px; display: flex; align-items: center; justify-content: center; font-size: 34px; color: rgba(255, 255, 255, .92); }
.news-body { padding: 22px 22px 24px; }
.news-meta { font-size: 12px; color: var(--muted-light); display: flex; gap: 12px; margin-bottom: 10px; }
.news-body h3 { font-size: 16px; font-weight: 600; color: var(--navy); line-height: 1.6; margin-bottom: 10px; transition: color .2s; }
.news-card:hover .news-body h3 { color: var(--primary); }
.news-body p { font-size: 13px; color: var(--muted); line-height: 1.8; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* 筛选 tab */
.filter-bar { display: flex; gap: 12px; justify-content: center; margin-bottom: 40px; flex-wrap: wrap; }
.filter-btn { font-size: 14px; color: var(--text-deep); background: #fff; border: 1px solid var(--border-deep); padding: 9px 22px; border-radius: 999px; transition: .2s; }
.filter-btn:hover { color: var(--primary); border-color: var(--primary); }
.filter-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 底部 CTA ============ */
.cta-section { background: var(--grad-deep); text-align: center; padding: 88px 0; }
.cta-section h2 { font-size: 34px; font-weight: 700; color: #fff; }
.cta-section p { font-size: 16px; color: #B9C8F0; margin-top: 16px; }
.cta-section .btn { margin-top: 30px; }
.cta-note { font-size: 12px; color: #8FA6D8; margin-top: 20px; }

/* ============ 页脚 ============ */
.site-footer { background: var(--navy-2); padding: 64px 0 28px; }
.footer-inner { display: flex; gap: 60px; justify-content: space-between; }
.footer-brand { width: 320px; flex-shrink: 0; }
.footer-brand-row { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo { width: 34px; height: 34px; display: block; object-fit: contain; filter: drop-shadow(0 3px 5px rgba(0, 0, 0, .25)); }
.footer-brand-name { font-size: 17px; font-weight: 700; color: #fff; }
.footer-brand p { font-size: 13px; color: var(--footer-link); line-height: 1.8; }
.footer-contact { margin-top: 16px; font-size: 13px; color: var(--footer-link); line-height: 2; }
.footer-contact b { color: #CFE1FF; font-weight: 500; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: var(--footer-link); margin-bottom: 12px; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-divider { height: 1px; background: var(--footer-line); margin: 40px 0 26px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12px; color: var(--footer-muted); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { color: var(--footer-muted); transition: color .2s; }
.footer-legal a:hover { color: #fff; }

/* ============ 内页 Banner ============ */
.page-banner { position: relative; overflow: hidden; background: var(--grad-banner); padding: 148px 0 76px; }
.page-banner .hero-grid { opacity: .12; }
.page-banner h1 { position: relative; z-index: 2; font-size: 38px; font-weight: 700; color: #fff; }
.page-banner .crumb { position: relative; z-index: 2; font-size: 13px; color: #9FB8E6; margin-bottom: 14px; }
.page-banner .crumb a:hover { color: #fff; }
.page-banner p { position: relative; z-index: 2; font-size: 16px; color: #B9C8F0; margin-top: 14px; max-width: 720px; line-height: 1.8; }

/* 面包屑条（内页浅色版） */
.crumb-bar { background: var(--light-bg); border-bottom: 1px solid var(--border); padding: 14px 0; font-size: 13px; color: var(--muted); }
.crumb-bar a:hover { color: var(--primary); }

/* ============ 关于页 ============ */
.about-wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.about-text p { font-size: 14px; color: var(--muted); line-height: 2; margin-bottom: 16px; }
.about-text p strong { color: var(--navy); font-weight: 600; }
.about-visual { position: relative; border-radius: var(--r-lg); overflow: hidden; background: var(--grad-deep); min-height: 360px; padding: 36px; display: flex; flex-direction: column; justify-content: center; }
.about-visual .av-title { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 22px; }
.av-item { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.av-dot { width: 22px; height: 22px; border-radius: 50%; background: rgba(255, 255, 255, .16); color: #9CC4FF; font-size: 11px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 3px; }
.av-item p { font-size: 13px; color: #C9DAF7; line-height: 1.8; }
.av-grid { position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px); background-size: 40px 40px; }

.mvv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mvv-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 32px 28px; text-align: center; transition: .3s; }
.mvv-card:hover { transform: translateY(-5px); box-shadow: 0 14px 32px rgba(11, 28, 63, .09); }
.mvv-icon { width: 52px; height: 52px; border-radius: 14px; background: var(--primary-soft); color: var(--primary); font-size: 24px; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.mvv-card h4 { font-size: 18px; font-weight: 600; color: var(--navy); margin-bottom: 12px; }
.mvv-card p { font-size: 13px; color: var(--muted); line-height: 1.9; }

.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--primary) 0%, #CFE1FF 100%); }
.tl-item { position: relative; padding-bottom: 26px; }
.tl-item::before { content: ""; position: absolute; left: -28px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--primary); }
.tl-year { font-size: 15px; font-weight: 700; color: var(--primary); font-family: var(--font-num); }
.tl-item p { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* 资质荣誉 */
.cert-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cert-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-md); padding: 24px 20px; text-align: center; transition: .3s; }
.cert-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(11, 28, 63, .08); }
.cert-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); font-size: 22px; display: flex; align-items: center; justify-content: center; margin: 0 auto 14px; }
.cert-card h5 { font-size: 15px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.cert-card p { font-size: 12px; color: var(--muted-light); }

/* ============ 业务详情页块 ============ */
.biz-block { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 72px; }
.biz-block:last-child { margin-bottom: 0; }
.biz-block.reverse .biz-visual { order: -1; }
.biz-visual { border-radius: var(--r-lg); overflow: hidden; min-height: 300px; padding: 34px; display: flex; flex-direction: column; justify-content: center; position: relative; }
.biz-visual .bv-label { position: relative; z-index: 2; font-size: 13px; letter-spacing: 1px; color: rgba(255, 255, 255, .8); margin-bottom: 12px; }
.biz-visual h3 { position: relative; z-index: 2; font-size: 24px; font-weight: 600; color: #fff; margin-bottom: 18px; }
.biz-visual ul { position: relative; z-index: 2; }
.biz-visual li { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, .9); padding: 8px 0; }
.biz-visual li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: rgba(255, 255, 255, .75); flex-shrink: 0; }
.biz-text h3 { font-size: 26px; font-weight: 700; color: var(--navy); margin-bottom: 14px; }
.biz-text .biz-sub { font-size: 14px; color: var(--primary); margin-bottom: 16px; font-weight: 500; }
.biz-text p { font-size: 14px; color: var(--muted); line-height: 2; margin-bottom: 14px; }
.biz-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 20px; }
.biz-point { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 14px 16px; }
.biz-point b { display: block; font-size: 14px; color: var(--navy); margin-bottom: 4px; font-weight: 600; }
.biz-point span { font-size: 12px; color: var(--muted); line-height: 1.7; }

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-info .ci-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border-deep); }
.contact-info .ci-item:last-child { border-bottom: none; }
.ci-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); font-size: 20px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.ci-label { font-size: 13px; color: var(--muted-light); margin-bottom: 4px; }
.ci-value { font-size: 15px; color: var(--navy); font-weight: 500; line-height: 1.7; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--r-lg); padding: 34px 32px; box-shadow: 0 14px 40px rgba(11, 28, 63, .07); }
.form-card h3 { font-size: 20px; font-weight: 600; color: var(--navy); margin-bottom: 6px; }
.form-card .form-tip { font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 13px; color: var(--text-deep); margin-bottom: 8px; }
.form-field label i { color: #E5484D; font-style: normal; margin-right: 3px; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%; background: var(--light-bg); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: 12px 14px; font-size: 14px; color: var(--navy);
  transition: border-color .2s, background .2s;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--primary); background: #fff; }
.form-field textarea { resize: vertical; min-height: 96px; }
.form-submit { width: 100%; justify-content: center; }
.form-note { font-size: 12px; color: var(--muted-light); margin-top: 14px; text-align: center; line-height: 1.8; }
.form-msg { font-size: 13px; padding: 10px 14px; border-radius: var(--r-sm); margin-bottom: 16px; display: none; }
.form-msg.ok { display: block; background: #EAF7EF; color: #2E7D4F; border: 1px solid #C6E9D3; }
.form-msg.err { display: block; background: #FDECEC; color: #C0392B; border: 1px solid #F7CFCE; }

/* 地图占位 */
.map-box {
  position: relative; margin-top: 24px; border-radius: var(--r-md); overflow: hidden;
  background: var(--light-bg); border: 1px solid var(--border);
  height: 180px;
}
.map-illus { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.map-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 14px; background: rgba(255, 255, 255, .93);
  font-size: 13px; color: var(--navy); font-weight: 500;
}
.map-caption .ic { width: 15px; height: 15px; fill: none; stroke: var(--primary); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* ============ 文章详情 ============ */
.article-wrap { max-width: 860px; margin: 0 auto; }
.article-head { text-align: center; padding-bottom: 28px; border-bottom: 1px solid var(--border-deep); }
.article-head h1 { font-size: 28px; font-weight: 700; color: var(--navy); line-height: 1.5; }
.article-meta { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; font-size: 13px; color: var(--muted-light); margin-top: 14px; }
.article-body { padding: 32px 0 8px; }
.article-body p { font-size: 15px; color: var(--text-deep); line-height: 2.1; margin-bottom: 18px; }
.article-body p strong { color: var(--navy); }
.article-body h3 { font-size: 19px; font-weight: 600; color: var(--navy); margin: 30px 0 14px; padding-left: 12px; border-left: 3px solid var(--primary); }
.article-body ul { margin: 0 0 18px 4px; }
.article-body li { position: relative; padding-left: 18px; font-size: 15px; color: var(--text-deep); line-height: 2; }
.article-body li::before { content: ""; position: absolute; left: 0; top: 14px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.article-body blockquote {
  background: var(--card-bg); border-left: 3px solid var(--primary); border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 16px 20px; margin: 24px 0; font-size: 14px; color: var(--muted); line-height: 1.9;
}
.article-nav { display: flex; flex-direction: column; gap: 12px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--border-deep); }
.article-nav a { font-size: 13px; color: var(--muted); transition: color .2s; }
.article-nav a:hover { color: var(--primary); }

/* ============ 分页 ============ */
.pager { display: flex; justify-content: center; gap: 10px; margin-top: 48px; }
.pager a, .pager span {
  min-width: 38px; height: 38px; padding: 0 12px; border-radius: var(--r-sm);
  border: 1px solid var(--border-deep); background: #fff; color: var(--text-deep);
  display: flex; align-items: center; justify-content: center; font-size: 13px; transition: .2s;
}
.pager a:hover { color: var(--primary); border-color: var(--primary); }
.pager .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ============ 响应式 ============ */
@media (max-width: 1360px) {
  .nav-inner { gap: 16px; }
  .nav-logo-img { height: 38px; }
  .nav-logo-cn { font-size: 16px; }
  .nav-menu { gap: 18px; }
  .nav-menu a { font-size: 14px; }
  .nav-tel { padding: 4px 8px; }
  .nav-tel-num { font-size: 14px; }
  .nav-cta { padding: 9px 16px; font-size: 13.5px; }
}
@media (max-width: 1180px) {
  .nav-tel { display: none; }
  .nav-menu { gap: 22px; }
}
@media (max-width: 1024px) {
  .nav-logo-img { height: 36px; }
  .nav-menu { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff;
    flex-direction: column; align-items: stretch; gap: 0; padding: 12px 24px 20px;
    box-shadow: 0 12px 28px rgba(11, 28, 63, .12); border-top: 1px solid var(--border); }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-menu a.active::after { display: none; }
  .nav-tel { margin-left: auto; }
  .nav-toggle { display: flex; }
  .svc-grid, .adv-grid, .reason-grid, .case-grid, .news-list, .mvv-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .news-columns { grid-template-columns: 1fr; gap: 32px; }
  .about-wrap, .biz-block, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .biz-block.reverse .biz-visual { order: 0; }
  .footer-inner { flex-wrap: wrap; gap: 36px; }
  .footer-brand { width: 100%; }
  .hero h1 { font-size: 38px; }
  .hero { padding: 140px 0 76px; }
  .page-banner { padding: 128px 0 60px; }
  .page-banner h1 { font-size: 30px; }
  .section { padding: 64px 0; }
  .section-head h2 { font-size: 26px; }
  .stats-row { flex-wrap: wrap; gap: 24px 0; }
  .stat { flex: 0 0 50%; }
}
@media (max-width: 640px) {
  .nav-logo-img { height: 32px; }
  .nav-logo-cn { font-size: 15px; }
  .nav-tel { display: none; }
  .svc-grid, .adv-grid, .reason-grid, .case-grid, .news-list, .mvv-grid, .cert-grid, .steps-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .hero p.desc { font-size: 15px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stat-num { font-size: 26px; }
  .form-row { grid-template-columns: 1fr; }
  .biz-points { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
}