/* ============================================================
   北京东方纵横认证中心有限公司无锡分公司 - 官网样式
   纯静态站点，无外部依赖（字体/图标均使用系统字体与内联SVG）
   ============================================================ */

/* ---------- 变量与基础 ---------- */
:root {
  --c-primary: #1d4ed8;        /* 主色：宝蓝 */
  --c-primary-dark: #1e3a8a;
  --c-primary-light: #3b82f6;
  --c-accent: #c2410c;         /* 点缀：暖橙（深，用于浅底文字/装饰） */
  --c-accent-bright: #ea580c;  /* 暖橙（标准，用于按钮/光效） */
  --c-accent-light: #fb923c;   /* 暖橙（亮，用于深底点缀） */
  --c-text: #1e293b;
  --c-text-2: #51607a;
  --c-line: #e3e9f1;
  --c-bg: #ffffff;
  --c-bg-soft: #f6f8fc;
  --c-bg-deep: #1e293b;
  --c-navy: #1e3a8a;
  --shadow-sm: 0 2px 8px rgba(30, 58, 138, 0.08);
  --shadow-md: 0 10px 30px rgba(30, 58, 138, 0.12);
  --radius: 10px;
  --radius-lg: 16px;
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans CJK 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(--c-text);
  background: var(--c-bg);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img, svg { vertical-align: middle; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

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

/* ---------- 顶部信息条 ---------- */
.topbar {
  background: var(--c-navy);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 36px;
  gap: 16px;
}
.topbar a { color: rgba(255, 255, 255, 0.85); }
.topbar a:hover { color: #fff; }
.topbar .topbar-links { display: flex; gap: 18px; }
.topbar .divider { opacity: 0.35; }

/* ---------- 导航 ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}
.navbar.scrolled { background: rgba(255, 255, 255, 0.99); box-shadow: 0 8px 26px rgba(30, 58, 138, 0.1); }
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.navbar nav { flex: 1; min-width: 0; }

.nav-menu { display: flex; align-items: center; justify-content: center; gap: 6px; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 15.5px;
  font-weight: 500;
  color: #334e68;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.nav-menu > li > a:hover,
.nav-menu > li > a.active {
  color: var(--c-primary);
  background: var(--c-bg-soft);
}
.nav-menu > li > a.active {
  font-weight: 700;
  box-shadow: inset 0 -2px 0 var(--c-primary);
}

/* 下拉菜单 */
.has-dropdown > a::after {
  content: "";
  display: inline-block;
  margin-left: 7px;
  width: 7px;
  height: 7px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg) translateY(-3px);
}
.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: 0 14px 36px rgba(30, 58, 138, 0.14);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.22s ease;
}
.has-dropdown:hover .dropdown,
.has-dropdown.open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown a {
  display: block;
  padding: 10px 14px;
  font-size: 14.5px;
  border-radius: 7px;
  color: #334e68;
}
.dropdown a:hover { background: var(--c-bg-soft); color: var(--c-primary); }

.nav-cta { flex: none; }

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  flex: none;
  width: 42px;
  height: 42px;
  border: 1px solid #d9e2ec;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  position: relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background: #243b53;
  transform: translateX(-50%);
  transition: all 0.25s ease;
}
.nav-toggle span { top: 50%; margin-top: -1px; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle.active span { background: transparent; }
.nav-toggle.active span::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.nav-toggle.active span::after { top: 0; transform: translateX(-50%) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all 0.22s ease;
  line-height: 1.4;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  color: #fff;
  box-shadow: 0 6px 16px rgba(29, 78, 216, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(29, 78, 216, 0.4); }
.btn-ghost {
  border-color: rgba(29, 78, 216, 0.45);
  color: var(--c-primary-dark);
  background: rgba(29, 78, 216, 0.06);
}
.btn-ghost:hover { background: rgba(29, 78, 216, 0.13); border-color: var(--c-primary); }
.btn-outline {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: #fff;
}
.btn-outline:hover { background: var(--c-primary); color: #fff; }
.btn-accent {
  background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
  color: #fff;
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(234, 88, 12, 0.42); }
.btn-sm { padding: 9px 20px; font-size: 14px; }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  color: var(--c-text);
  background: linear-gradient(135deg, #fff3e6, #fffdf8 55%, #eff4ff);
  overflow: hidden;
}
.hero::before {
  /* 装饰网格 */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 58, 138, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 138, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 30%, transparent 75%);
}
.hero::after {
  /* 浮动暖橙光晕 */
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  right: -140px;
  top: -200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(234, 88, 12, 0.14), transparent 65%);
  animation: heroGlow 8s ease-in-out infinite alternate;
  pointer-events: none;
}
@keyframes heroGlow {
  from { opacity: 0.5; transform: translate3d(0, 0, 0); }
  to   { opacity: 1;   transform: translate3d(-30px, 30px, 0); }
}
@media (prefers-reduced-motion: reduce) { .hero::after { animation: none; } }
.hero .container { position: relative; z-index: 1; }
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
  align-items: center;
  gap: 48px;
  padding: 88px 0 72px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--c-line);
  color: var(--c-primary-dark);
  box-shadow: 0 3px 12px rgba(30, 58, 138, 0.07);
  font-size: 13.5px;
  letter-spacing: 0.5px;
  margin-bottom: 22px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--c-accent-bright);
  box-shadow: 0 0 8px var(--c-accent-bright);
}
.hero h1 {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 18px;
}
.hero h1 .em { color: var(--c-accent); }
.hero .hero-desc {
  font-size: 16.5px;
  color: var(--c-text-2);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero 右侧徽章图形 */
.hero-art { display: flex; justify-content: center; }
.hero-art svg { width: min(360px, 80%); height: auto; filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.35)); }

/* Hero 数据条 */
.hero-stats {
  position: relative;
  border-top: 1px solid var(--c-line);
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(4px);
}
.hero-stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 26px;
  padding-bottom: 26px;
}
.stat { text-align: center; }
.stat .num {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-primary-dark);
}
.stat .num .unit { font-size: 17px; font-weight: 600; color: var(--c-accent); margin-left: 3px; }
.stat .label { font-size: 13.5px; color: var(--c-text-2); margin-top: 4px; }

/* ---------- 内页 Hero ---------- */
.page-hero {
  position: relative;
  color: var(--c-text);
  background: linear-gradient(135deg, #fff3e6, #fffdf8 55%, #eff4ff);
  padding: 64px 0 56px;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(30, 58, 138, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30, 58, 138, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 75% 90% at 70% 20%, #000 25%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 75% 90% at 70% 20%, #000 25%, transparent 72%);
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 700; letter-spacing: 1px; color: var(--c-primary-dark); }
.page-hero .page-desc { margin-top: 10px; color: var(--c-text-2); max-width: 720px; font-size: 15.5px; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13.5px;
  color: var(--c-text-2);
  margin-bottom: 14px;
}
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb .sep { opacity: 0.5; }

/* ---------- 通用 Section ---------- */
.section { padding: 76px 0; }
.section-alt { background: var(--c-bg-soft); }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-head .kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  color: var(--c-primary-dark);
  letter-spacing: 1px;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 52px;
  height: 3.5px;
  border-radius: 3px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
}
.section-head .sub { margin-top: 16px; color: var(--c-text-2); font-size: 15.5px; }
.section-head.left { text-align: left; margin-left: 0; }
.section-head.left h2::after { margin-left: 0; }

/* ---------- 网格与卡片 ---------- */
.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: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(29, 78, 216, 0.35);
}
.card .icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.1), rgba(234, 88, 12, 0.14));
  color: var(--c-primary);
  margin-bottom: 18px;
}
.card .icon svg { width: 28px; height: 28px; }
.card h3 { font-size: 18.5px; color: var(--c-primary-dark); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--c-text-2); }
.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
}
.card .card-link::after { content: "→"; transition: transform 0.2s; }
.card:hover .card-link::after { transform: translateX(4px); }

/* 标签列表（认证标准小块） */
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.tag {
  font-size: 13px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  color: var(--c-text-2);
}

/* ---------- 关于板块（首页） ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}
.about-grid .about-text p { color: var(--c-text-2); margin-bottom: 14px; font-size: 15.5px; }
.about-points { margin: 22px 0 28px; display: grid; gap: 12px; }
.about-points li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
}
.about-points .tick {
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border-radius: 50%;
  background: rgba(29, 78, 216, 0.1);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-points .tick svg { width: 12px; height: 12px; }

.about-visual { position: relative; }
.about-visual .panel {
  background: linear-gradient(150deg, var(--c-primary-dark), var(--c-primary));
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 38px 34px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.about-visual .panel::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 36px solid rgba(255, 255, 255, 0.07);
}
.about-visual .panel h3 { font-size: 20px; margin-bottom: 18px; }
.about-visual .panel ul { display: grid; gap: 14px; position: relative; }
.about-visual .panel li { display: flex; gap: 12px; font-size: 14.5px; color: rgba(255, 255, 255, 0.88); }
.about-visual .panel li b { color: var(--c-accent-light); font-weight: 700; flex: none; }

/* ---------- 流程步骤 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  counter-reset: step;
}
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 26px 22px 22px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step .step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 17px;
  color: #fff;
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  margin-bottom: 14px;
}
.step h3 { font-size: 16.5px; color: var(--c-primary-dark); margin-bottom: 8px; }
.step p { font-size: 13.8px; color: var(--c-text-2); }

/* ---------- 资质徽章 ---------- */
.cred-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cred {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.cred:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.cred .cred-icon {
  flex: none;
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.12), rgba(234, 88, 12, 0.24));
  color: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cred .cred-icon svg { width: 26px; height: 26px; }
.cred h3 { font-size: 16px; color: var(--c-primary-dark); margin-bottom: 6px; }
.cred p { font-size: 13.5px; color: var(--c-text-2); }

/* ---------- 新闻 ---------- */
.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);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.news-meta { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--c-text-2); }
.news-meta .cat {
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(29, 78, 216, 0.08);
  color: var(--c-primary);
  font-weight: 600;
}
.news-card h3 { font-size: 16.5px; line-height: 1.55; color: var(--c-text); }
.news-card:hover h3 { color: var(--c-primary); }
.news-card p { font-size: 14px; color: var(--c-text-2); }

/* 新闻列表页 */
.news-list { display: grid; gap: 18px; }
.news-item {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  transition: transform 0.22s, box-shadow 0.22s;
}
.news-item:hover { transform: translateX(6px); box-shadow: var(--shadow-md); }
.news-date {
  flex: none;
  width: 78px;
  text-align: center;
  border-radius: 12px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-line);
  padding: 12px 6px;
}
.news-date .d { font-size: 26px; font-weight: 700; color: var(--c-primary); line-height: 1.15; }
.news-date .ym { font-size: 12.5px; color: var(--c-text-2); }
.news-item h3 { font-size: 17px; margin-bottom: 6px; }
.news-item:hover h3 { color: var(--c-primary); }
.news-item p { font-size: 14px; color: var(--c-text-2); }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background:
    radial-gradient(600px 260px at 15% 120%, rgba(234, 88, 12, 0.28), transparent 60%),
    linear-gradient(120deg, var(--c-primary-dark), var(--c-primary));
  border-radius: var(--radius-lg);
  color: #fff;
  padding: 52px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow-md);
}
.cta-band h2 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 8px; }
.cta-band p { color: rgba(255, 255, 255, 0.82); font-size: 15px; }
.cta-band .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 内容页布局（正文 + 侧栏） ---------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}
.prose h2 {
  font-size: 23px;
  color: var(--c-primary-dark);
  margin: 38px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--c-accent);
  line-height: 1.4;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 18px; color: var(--c-primary-dark); margin: 26px 0 10px; }
.prose p { color: var(--c-text-2); margin-bottom: 14px; font-size: 15.5px; }
.prose ul { margin: 0 0 16px; display: grid; gap: 8px; }
.prose ul li {
  position: relative;
  padding-left: 22px;
  color: var(--c-text-2);
  font-size: 15px;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--c-primary);
  opacity: 0.55;
}
.prose strong { color: var(--c-text); }

/* 表格 */
.table-wrap { overflow-x: auto; margin: 18px 0 26px; border-radius: var(--radius); border: 1px solid var(--c-line); }
table.std { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
table.std th {
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  color: #fff;
  font-weight: 600;
  padding: 13px 16px;
  text-align: left;
  white-space: nowrap;
}
table.std td { padding: 12px 16px; border-top: 1px solid var(--c-line); color: var(--c-text-2); }
table.std tr:nth-child(even) td { background: var(--c-bg-soft); }
table.std td:first-child { color: var(--c-text); font-weight: 600; white-space: nowrap; }

/* 提示块 */
.note {
  display: flex;
  gap: 12px;
  background: rgba(234, 88, 12, 0.06);
  border: 1px solid rgba(234, 88, 12, 0.35);
  border-radius: var(--radius);
  padding: 16px 18px;
  font-size: 14px;
  color: var(--c-accent);
  margin: 18px 0;
}
.note svg { flex: none; width: 20px; height: 20px; margin-top: 2px; }

/* 侧栏 */
.sidebar { display: grid; gap: 22px; position: sticky; top: 100px; }
.side-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.side-card h3 {
  font-size: 16.5px;
  color: var(--c-primary-dark);
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--c-bg-soft);
}
.side-card ul { display: grid; gap: 4px; }
.side-card ul a {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14.5px;
  color: var(--c-text-2);
  transition: all 0.18s;
}
.side-card ul a:hover, .side-card ul a.active { background: var(--c-bg-soft); color: var(--c-primary); font-weight: 600; }
.side-card.contact-card {
  background: linear-gradient(150deg, var(--c-primary-dark), var(--c-primary));
  border: none;
  color: #fff;
}
.side-card.contact-card h3 { color: #fff; border-color: rgba(255, 255, 255, 0.18); }
.side-card.contact-card .line { display: flex; gap: 10px; font-size: 14px; color: rgba(255, 255, 255, 0.85); margin-bottom: 10px; }
.side-card.contact-card .line svg { flex: none; width: 18px; height: 18px; margin-top: 4px; color: var(--c-accent-light); }
.side-card.contact-card .btn { width: 100%; margin-top: 8px; }

/* ---------- 时间线（关于我们） ---------- */
.milestones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.milestone {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  position: relative;
  transition: transform 0.25s, box-shadow 0.25s;
}
.milestone:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.milestone .year { font-size: 24px; font-weight: 700; color: var(--c-accent); margin-bottom: 8px; }
.milestone p { font-size: 14px; color: var(--c-text-2); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 48px; }
.contact-card-item {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  text-align: center;
  transition: transform 0.25s, box-shadow 0.25s;
}
.contact-card-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.contact-card-item .icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.1), rgba(234, 88, 12, 0.14));
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-card-item .icon svg { width: 26px; height: 26px; }
.contact-card-item h3 { font-size: 17px; color: var(--c-primary-dark); margin-bottom: 8px; }
.contact-card-item p { font-size: 14.5px; color: var(--c-text-2); }

.map-placeholder {
  border: 1px dashed rgba(29, 78, 216, 0.4);
  border-radius: var(--radius-lg);
  background: var(--c-bg-soft);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--c-text-2);
  font-size: 14.5px;
  text-align: center;
  padding: 24px;
}

/* 留言表单 */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; color: var(--c-text); }
.field label .req { color: #d04545; margin-left: 3px; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--c-line);
  border-radius: 9px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--c-text);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.12);
}
.field textarea { min-height: 130px; resize: vertical; }
.form-hint { font-size: 13px; color: var(--c-text-2); margin-top: 10px; }

/* ---------- 证书查询 ---------- */
.query-channels { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.query-card {
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  border: 1px solid var(--c-line);
  background: #fff;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s, box-shadow 0.25s;
}
.query-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.query-card.hl {
  background: linear-gradient(150deg, var(--c-primary-dark), var(--c-primary));
  color: #fff;
  border: none;
}
.query-card .icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(29, 78, 216, 0.09);
  color: var(--c-primary);
  margin-bottom: 18px;
}
.query-card.hl .icon { background: rgba(255, 255, 255, 0.14); color: #fff; }
.query-card .icon svg { width: 28px; height: 28px; }
.query-card h3 { font-size: 19px; margin-bottom: 10px; }
.query-card p { font-size: 14.5px; color: var(--c-text-2); margin-bottom: 12px; }
.query-card.hl p { color: rgba(255, 255, 255, 0.82); }
.query-card .btn { align-self: flex-start; margin-top: auto; }

/* ---------- 页脚 ---------- */
.footer {
  background: var(--c-bg-deep);
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0;
  border-top: 1px solid rgba(234, 88, 12, 0.25);
}
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding: 56px 0 40px;
}
.footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 0.5px; }
.footer-brand .brand-name { color: #fff; font-size: 18px; font-weight: 700; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.55); font-size: 12px; }
.footer-brand p { font-size: 13.5px; margin-top: 14px; color: rgba(255, 255, 255, 0.62); max-width: 300px; }
.footer ul { display: grid; gap: 10px; }
.footer ul a { font-size: 14px; color: rgba(255, 255, 255, 0.68); transition: color 0.18s; }
.footer ul a:hover { color: #fff; }
.footer .f-line { display: flex; gap: 10px; font-size: 13.5px; margin-bottom: 11px; color: rgba(255, 255, 255, 0.68); }
.footer .f-line svg { flex: none; width: 17px; height: 17px; margin-top: 3.5px; color: var(--c-accent-light); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: #fff; }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  right: 26px;
  bottom: 30px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--c-primary-dark), var(--c-primary));
  color: #fff;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(29, 78, 216, 0.38);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  z-index: 90;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { filter: brightness(1.12); }
.back-top svg { width: 20px; height: 20px; }

/* ---------- 滚动显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4, .steps, .milestones { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .news-grid, .cred-strip, .contact-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 36px; padding: 64px 0 56px; }
  .hero-art { display: none; }
  .about-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .page-layout { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: static; }
  .footer-main { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .topbar .topbar-info { display: none; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: #fff;
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 14px 36px rgba(30, 58, 138, 0.14);
    padding: 10px 16px 16px;
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu > li > a { padding: 13px 12px; }
  .dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    background: var(--c-bg-soft);
    border-radius: 10px;
    margin: 2px 0 6px;
    display: none;
  }
  .has-dropdown.open .dropdown { display: block; }
  .has-dropdown:hover .dropdown { transform: none; }

  .section { padding: 56px 0; }
  .grid-2, .grid-3, .grid-4, .news-grid, .cred-strip, .steps,
  .milestones, .contact-grid, .query-channels, .form-grid { grid-template-columns: minmax(0, 1fr); }
  .form-grid .full { grid-column: auto; }
  .hero-stats .container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat .num { font-size: 27px; }
  .cta-band { padding: 36px 28px; }
  .footer-main { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .news-item { flex-direction: column; gap: 14px; padding: 22px; }
  .news-date { display: flex; width: auto; gap: 8px; align-items: baseline; padding: 8px 14px; }
  .news-date .d { font-size: 20px; }
}

/* ===== 首页抬头：公司全名整行大标题，居中通栏（2026-06 优化） ===== */
.hero-inner.hero-centered {
  display: block;
  position: relative;
  text-align: center;
  padding: 72px 0 60px;
}
.hero-centered .hero-content { position: relative; z-index: 1; }
.hero h1.hero-company {
  font-size: clamp(25px, 4.5vw, 54px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 2.5px;
  white-space: nowrap;
  margin: 26px 0 16px;
  color: var(--c-primary-dark);
}
.hero .hero-slogan {
  font-size: clamp(15px, 1.8vw, 21px);
  letter-spacing: 5px;
  color: var(--c-text-2);
  margin-bottom: 20px;
}
.hero .hero-slogan .em { color: var(--c-accent); font-weight: 700; }
.hero-centered .hero-desc {
  margin: 0 auto 34px;
  max-width: 720px;
}
.hero-centered .hero-actions { justify-content: center; }
.hero-centered .hero-art {
  display: none; /* 亮色主题下隐藏水印图形 */
  position: absolute;
  right: -36px;
  top: 50%;
  transform: translateY(-50%);
  width: 380px;
  opacity: 0.14;
  pointer-events: none;
  z-index: 0;
}
.hero-centered .hero-art svg { width: 100%; height: auto; }
@media (max-width: 680px) {
  .hero h1.hero-company { white-space: normal; letter-spacing: 1.5px; }
  .hero .hero-slogan { letter-spacing: 3px; }
  .hero-centered .hero-art { display: none; }
}

/* ===== 证书样本图库 + 灯箱 ===== */
.cert-cat {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 19px;
  font-weight: 700;
  color: var(--c-primary-dark);
  margin: 44px 0 20px;
  padding-left: 14px;
  border-left: 4px solid var(--c-accent-bright);
  line-height: 1.3;
}
.cert-cat:first-child { margin-top: 8px; }
.cert-cat span {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--c-accent);
  background: rgba(234, 88, 12, 0.1);
  border-radius: 999px;
  padding: 2px 10px;
}
.cert-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cert-item {
  margin: 0;
  background: #fff;
  border: 1px solid #e3eaf2;
  border-radius: 12px;
  padding: 14px 14px 16px;
  text-align: center;
  cursor: zoom-in;
  box-shadow: 0 2px 10px rgba(30, 58, 138, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.cert-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 30px rgba(30, 58, 138, 0.16);
}
.cert-item img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 6px;
  border: 1px solid #eef2f7;
}
.cert-item figcaption {
  margin-top: 12px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--c-primary-dark);
  line-height: 1.5;
}
.cert-item figcaption small {
  font-weight: 500;
  color: var(--c-text-2);
  font-size: 12.5px;
}
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(5, 22, 44, 0.9);
  cursor: zoom-out;
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92vw;
  max-height: 92vh;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
@media (max-width: 1024px) { .cert-gallery { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 680px)  { .cert-gallery { grid-template-columns: repeat(2, 1fr); gap: 14px; } }

/* ===== 联系页地图 ===== */
.map-box {
  display: flex;
  flex-direction: column;
  border: 1px solid #e3eaf2;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 12px rgba(30, 58, 138, 0.07);
  min-height: 420px;
}
.map-box iframe {
  width: 100%;
  flex: 1;
  min-height: 340px;
  border: 0;
  display: block;
}
.map-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 16px;
  border-top: 1px solid #eef2f7;
  font-size: 14px;
}
.map-actions .map-addr { color: var(--c-text-2); font-weight: 600; }
.map-actions .btn { margin-left: 8px; }
.btn.btn-ghost-dark {
  border: 1px solid var(--c-primary);
  color: var(--c-primary);
  background: transparent;
}
.btn.btn-ghost-dark:hover { background: rgba(29, 78, 216, 0.06); }
@media (max-width: 760px) {
  .map-box { min-height: 360px; }
  .map-actions { justify-content: center; text-align: center; }
}

/* 新闻标题链接样式 */
.news-item h3 a { color: inherit; text-decoration: none; transition: color .2s; }
.news-item h3 a:hover { color: var(--c-primary); }

/* ===== 专项体系/认证 网格（认证服务页） ===== */
.sys-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 16px 0 24px;
}
.sys-grid .sys-item {
  border: 1px solid var(--c-line);
  border-radius: 10px;
  padding: 12px 14px;
  background: #fff;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.sys-grid .sys-item:hover {
  border-color: rgba(29, 78, 216, 0.35);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.sys-grid .sys-item b { display: block; font-size: 14.5px; color: var(--c-primary-dark); font-weight: 600; }
.sys-grid .sys-item small { font-size: 12px; color: var(--c-text-2); }
@media (max-width: 1024px) { .sys-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px)  { .sys-grid { grid-template-columns: 1fr; } }

/* ===== 咨询卡社交标识（微信 / QQ） ===== */
.contact-social {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.contact-social .social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.14);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.contact-social .social-btn svg { width: 22px; height: 22px; fill: #fff; }
.contact-social .social-btn:hover { transform: translateY(-3px); }
.contact-social .social-btn.wechat:hover { background: #07c160; }
.contact-social .social-btn.qq:hover { background: #12b7f5; }

/* 亮色版（联系页卡片，白底，品牌色实心圆） */
.contact-social.light { border-top: none; padding-top: 0; margin-top: 6px; }
.contact-social.light .social-btn { width: 48px; height: 48px; }
.contact-social.light .social-btn svg { width: 26px; height: 26px; }
.contact-social.light .social-btn.wechat { background: #07c160; }
.contact-social.light .social-btn.qq { background: #12b7f5; }
.contact-social.light .social-btn:hover { filter: brightness(1.08); transform: translateY(-3px); }

/* ===== 键盘可访问性焦点环 ===== */
.cert-item:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
}
.nav-menu a:focus-visible,
.dropdown a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}