/* ============================================================
   河北省丝网产品质量检验检测中心 - CMS 模板
   设计系统 · 权威政务蓝 · WCAG AA
   ============================================================ */

/* -------- 1. CSS Reset (基础重置) -------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { min-height: 100vh; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }

/* -------- 2. 设计令牌 (Design Tokens) -------- */
:root {
  /* 主色系 · 权威政务蓝 */
  --color-primary:        #0F3D7A;   /* 主品牌蓝（政府/权威） */
  --color-primary-dark:   #0A2B58;   /* 深蓝（页头/页脚背景） */
  --color-primary-light:  #1E5BA8;   /* 亮蓝（链接 hover） */
  --color-primary-50:     #EAF2FB;   /* 极浅蓝（卡片底） */
  --color-primary-100:    #D4E5F6;
  --color-primary-200:    #A9CCED;

  /* CTA / 强调色 · 朱红印章 */
  --color-accent:         #C8102E;   /* 朱红（中国印章红，CTA） */
  --color-accent-dark:    #9F0A22;
  --color-accent-light:   #E8485F;

  /* 中性色 */
  --color-bg:             #FFFFFF;
  --color-bg-soft:        #F7F9FC;   /* 页面背景（柔灰） */
  --color-bg-muted:       #EFF3F8;
  --color-surface:        #FFFFFF;   /* 卡片表面 */
  --color-text:           #1A2233;   /* 正文（接近黑） */
  --color-text-muted:     #5C6677;   /* 次级文本 */
  --color-text-subtle:    #8892A6;
  --color-border:         #E2E8F0;
  --color-border-strong:  #CBD5E1;

  /* 功能色 */
  --color-success:        #15803D;
  --color-warning:        #B45309;
  --color-danger:         #B91C1C;
  --color-info:           #0369A1;

  /* CMA 资质金（点缀） */
  --color-gold:           #B8860B;
  --color-gold-light:     #D4AF37;

  /* 字体 */
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;

  /* 字号阶梯（1.25 比率） */
  --fs-xs:    0.75rem;   /* 12px */
  --fs-sm:    0.875rem;  /* 14px */
  --fs-base:  1rem;      /* 16px 基准 */
  --fs-md:    1.125rem;  /* 18px */
  --fs-lg:    1.25rem;   /* 20px */
  --fs-xl:    1.5rem;    /* 24px */
  --fs-2xl:   2rem;      /* 32px */
  --fs-3xl:   2.5rem;    /* 40px */
  --fs-4xl:   3.25rem;   /* 52px */

  /* 间距系统 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  --space-16: 8rem;

  /* 圆角 */
  --radius-sm: 4px;
  --radius:    8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(15, 61, 122, 0.04), 0 1px 3px rgba(15, 61, 122, 0.06);
  --shadow:    0 2px 8px rgba(15, 61, 122, 0.06), 0 1px 3px rgba(15, 61, 122, 0.04);
  --shadow-md: 0 6px 16px rgba(15, 61, 122, 0.08), 0 2px 6px rgba(15, 61, 122, 0.05);
  --shadow-lg: 0 12px 32px rgba(15, 61, 122, 0.12), 0 4px 12px rgba(15, 61, 122, 0.06);

  /* 布局 */
  --container: 1240px;
  --header-h: 80px;
  --topbar-h: 40px;

  /* 过渡 */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* -------- 3. 基础排版 -------- */
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--color-text);
  background: var(--color-bg-soft);
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary-dark);
  letter-spacing: -0.01em;
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p { line-height: 1.75; color: var(--color-text); }

a {
  color: var(--color-primary);
  transition: color var(--transition);
}
a:hover { color: var(--color-primary-light); }

strong { font-weight: 600; }

/* -------- 4. 布局容器 -------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

.section { padding-block: var(--space-12); }
.section-sm { padding-block: var(--space-8); }
.section-lg { padding-block: var(--space-16); }

.section-header { text-align: center; max-width: 760px; margin: 0 auto var(--space-10); }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}
.section-eyebrow::before {
  content: "";
  width: 28px; height: 2px;
  background: var(--color-accent);
}
.section-title { font-size: var(--fs-2xl); margin-bottom: var(--space-3); }
.section-subtitle { color: var(--color-text-muted); font-size: var(--fs-md); }

/* -------- 5. 按钮 -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.5rem;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}
.btn svg { width: 18px; height: 18px; }

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-secondary { background: var(--color-primary); color: #fff; }
.btn-secondary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-border-strong); }
.btn-outline:hover { background: var(--color-primary-50); border-color: var(--color-primary); color: var(--color-primary); }

.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: #fff; }

.btn-lg { padding: 0.95rem 2rem; font-size: var(--fs-md); }
.btn-block { width: 100%; }

/* -------- 6. 顶部公告条 -------- */
.topbar {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  font-size: var(--fs-sm);
  height: var(--topbar-h);
}
.topbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}
.topbar-left { display: flex; align-items: center; gap: var(--space-5); }
.topbar-link { display: inline-flex; align-items: center; gap: 6px; color: rgba(255,255,255,0.85); }
.topbar-link:hover { color: #fff; }
.topbar-link svg { width: 14px; height: 14px; }
.topbar-right { display: flex; align-items: center; gap: var(--space-4); }
.topbar-divider { width: 1px; height: 14px; background: rgba(255,255,255,0.2); }

/* -------- 7. 主导航 -------- */
.header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; min-width: 0; max-width: 340px; }
.brand-text { min-width: 0; overflow: hidden; }
.brand-logo {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.brand-logo img { width: 100%; height: 100%; object-fit: cover; }
.footer .brand-logo { background: rgba(255,255,255,0.08); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-primary-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 10px;
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
}
.nav-link {
  padding: 0.5rem 0.7rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-link:hover { color: var(--color-primary); background: var(--color-primary-50); }
.nav-link.active { color: var(--color-primary); font-weight: 600; }
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: -28px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px; height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.header-cta { display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0; }

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}
.menu-toggle:hover { background: var(--color-primary-50); }
.menu-toggle svg { width: 24px; height: 24px; color: var(--color-primary); }

/* -------- 8. Hero 区域 -------- */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(10, 43, 88, 0.92) 0%, rgba(15, 61, 122, 0.88) 60%, rgba(30, 91, 168, 0.82) 100%),
    radial-gradient(circle at 80% 20%, rgba(200, 16, 46, 0.15), transparent 50%),
    var(--color-primary-dark);
  color: #fff;
  padding-block: var(--space-16);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-10);
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.4rem 0.9rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--space-5);
  backdrop-filter: blur(8px);
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #22C55E; box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2); }
.hero-title {
  font-size: var(--fs-4xl);
  color: #fff;
  line-height: 1.15;
  margin-bottom: var(--space-5);
  font-weight: 800;
}
.hero-title .accent { color: #FFD27D; }
.hero-desc {
  font-size: var(--fs-md);
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: var(--space-6);
}
.hero-subtitle {
  font-size: var(--fs-lg);
  color: #FFD27D;
  font-weight: 600;
  margin-bottom: var(--space-3);
  letter-spacing: 0.05em;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-8); }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat { text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-stat .num {
  font-size: var(--fs-2xl);
  font-weight: 800;
  color: #FFD27D;
  line-height: 1;
}
.hero-stat .label { font-size: var(--fs-sm); color: rgba(255,255,255,0.75); margin-top: var(--space-2); }

/* Hero 右侧资质卡 */
.hero-credential {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  backdrop-filter: blur(12px);
}
.hero-credential-title {
  display: flex; align-items: center; gap: var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: var(--space-4);
}
.cred-seal {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent) 60%, var(--color-accent-dark));
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: var(--fs-lg);
  border: 2px solid rgba(255,255,255,0.3);
  box-shadow: 0 4px 12px rgba(200,16,46,0.4);
}
.cred-title { color: #fff; font-size: var(--fs-md); font-weight: 700; }
.cred-seal-img { height: 48px; width: auto; border-radius: 6px; display: block; }
.cred-sub { color: rgba(255,255,255,0.7); font-size: var(--fs-sm); }
.cred-list { display: flex; flex-direction: column; gap: var(--space-3); }
.cred-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  color: rgba(255,255,255,0.9);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.cred-check {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.2);
  color: #4ADE80;
  display: flex; align-items: center; justify-content: center;}
.cred-check svg { width: 14px; height: 14px; }
.cred-download {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.12);
}
.cred-download .btn {
  flex: 1;
  justify-content: center;
  padding: 0.6rem 0.8rem;
  font-size: var(--fs-sm);
  white-space: nowrap;
  cursor: pointer;
}
.cred-download .btn svg { width: 16px; height: 16px; flex-shrink: 0; }
@media (max-width: 560px) {
  .cred-download { flex-direction: column; }
}

/* -------- 9. 信任条 / 资质滚动 -------- */
.trust-bar {
  background: #fff;
  border-block: 1px solid var(--color-border);
  padding-block: var(--space-6);
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-5);
}
.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-right: 1px solid var(--color-border);
}
.trust-item:last-child { border-right: none; }
.trust-icon {
  width: 44px; height: 44px;
  color: var(--color-primary);
}
.trust-num { font-size: var(--fs-xl); font-weight: 700; color: var(--color-primary-dark); }
.trust-label { font-size: var(--fs-sm); color: var(--color-text-muted); }

/* -------- 10. 四大承诺卡片 -------- */
.pledge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.pledge-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pledge-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.pledge-card:hover {
  border-color: var(--color-primary-200);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.pledge-card:hover::before { transform: scaleX(1); }
.pledge-num {
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-3);
  font-family: var(--font-serif);
}
.pledge-title { font-size: var(--fs-md); margin-bottom: var(--space-2); color: var(--color-primary-dark); }
.pledge-desc { font-size: var(--fs-sm); color: #3D4A5C; line-height: 1.7; }

/* -------- 11. 服务/业务卡片 -------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-5);
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.service-icon {
  width: 56px; height: 56px;
  background: var(--color-primary-50);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.service-icon svg { width: 30px; height: 30px; }
.service-title { font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.service-desc { font-size: var(--fs-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); flex: 1; line-height: 1.7; }
.service-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.service-subcats { margin-bottom: var(--space-4); }
.subcat { font-size: var(--fs-sm); color: var(--color-text-muted); padding: 0.25rem 0; line-height: 1.7; }
.tag {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  font-size: var(--fs-xs);
  background: var(--color-bg-muted);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  font-weight: 500;
}
.tag-primary { background: var(--color-primary-50); color: var(--color-primary); }
.service-link {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-primary);
}
.service-link svg { width: 16px; height: 16px; flex-shrink: 0; }
.service-link:hover { gap: var(--space-3); }

/* -------- 12. CTA 横幅 -------- */
.cta-band {
  background:
    linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(200,16,46,0.25), transparent 70%);
  pointer-events: none;
}
.cta-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
  align-items: center;
  position: relative;
  z-index: 1;
}
.cta-title { color: #fff; font-size: var(--fs-2xl); margin-bottom: var(--space-2); }
.cta-desc { color: rgba(255,255,255,0.85); font-size: var(--fs-md); }
.cta-actions { display: flex; flex-direction: column; gap: var(--space-3); }

/* -------- 13. 新闻 / 资讯 -------- */
.news-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-6);
}
.news-feature {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.news-feature:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.news-img {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary-100), var(--color-primary-200));
  position: relative;
  overflow: hidden;
}
.news-img img { width: 100%; height: 100%; object-fit: cover; }
.news-cat {
  position: absolute;
  top: var(--space-3); left: var(--space-3);
  padding: 0.25rem 0.7rem;
  background: var(--color-accent);
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}
.news-body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.news-title {
  font-size: var(--fs-md);
  margin-bottom: var(--space-2);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-feature:hover .news-title { color: var(--color-primary); }
.news-excerpt { font-size: var(--fs-sm); color: var(--color-text-muted); flex: 1; line-height: 1.7; }
.news-meta {
  display: flex; align-items: center; gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-xs);
  color: var(--color-text-subtle);
}
.news-meta-item { display: inline-flex; align-items: center; gap: 4px; }
.news-meta-item svg { width: 13px; height: 13px; }

.news-list { display: flex; flex-direction: column; gap: var(--space-3); }
.news-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-4);
  padding: var(--space-4);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all var(--transition);
  align-items: center;
}
.news-item:hover { border-color: var(--color-primary-200); box-shadow: var(--shadow); }
.news-date {
  text-align: center;
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-50);
  border-radius: var(--radius);
  min-width: 60px;
}
.news-date .day { font-size: var(--fs-xl); font-weight: 700; color: var(--color-primary); line-height: 1; }
.news-date .month { font-size: var(--fs-xs); color: var(--color-text-muted); margin-top: 2px; }
.news-content { min-width: 0; }
.news-content .t {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-item:hover .news-content .t { color: var(--color-primary); }
.news-content .m { font-size: var(--fs-xs); color: var(--color-text-subtle); }

/* -------- 14. 页脚 -------- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.75);
  padding-top: var(--space-12);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  padding-bottom: var(--space-10);
}
.footer-brand { display: flex; align-items: center; gap: var(--space-3); margin-bottom: var(--space-4); }
.footer-brand .brand-logo { background: rgba(255,255,255,0.1); }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-sub { color: rgba(255,255,255,0.75); }
.footer-desc { font-size: var(--fs-sm); line-height: 1.8; margin-bottom: var(--space-4); color: rgba(255,255,255,0.75); }
.footer-col h4 {
  color: #fff;
  font-size: var(--fs-base);
  margin-bottom: var(--space-4);
  font-weight: 600;
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a {
  color: rgba(255,255,255,0.8);
  font-size: var(--fs-sm);
  transition: color var(--transition);
}
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-contact-item {
  display: flex; align-items: flex-start; gap: var(--space-3);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-3);
  color: rgba(255,255,255,0.8);
  line-height: 1.6;
}
.footer-contact-item svg { width: 18px; height: 18px; color: var(--color-primary-200); flex-shrink: 0; margin-top: 2px; }

.qrcode-row { display: flex; gap: var(--space-4); margin-top: var(--space-4); }
.qrcode {
  text-align: center;
}
.qrcode-img {
  width: 92px; height: 92px;
  background: #fff;
  border-radius: var(--radius);
  padding: 6px;
  margin-bottom: var(--space-2);
}
.qrcode-img img { width: 100%; height: 100%; }
.qrcode-label { font-size: var(--fs-xs); color: rgba(255,255,255,0.7); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-block: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.85);
  flex-wrap: wrap;
}
.footer-links { display: flex; gap: var(--space-4); }
.footer-links a { color: rgba(255,255,255,0.85); }
.footer-links a:hover { color: #fff; }

/* -------- 15. 面包屑 -------- */
.breadcrumb {
  background: var(--color-primary-50);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-4);
}
.breadcrumb-list {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}
.breadcrumb-list a { color: var(--color-text-muted); }
.breadcrumb-list a:hover { color: var(--color-primary); }
.breadcrumb-list li:last-child { color: var(--color-primary); font-weight: 500; }
.breadcrumb-sep { color: var(--color-text-subtle); }

/* -------- 16. 页面头图 (Page Header) -------- */
.page-hero {
  background:
    linear-gradient(135deg, rgba(10,43,88,0.92), rgba(15,61,122,0.85)),
    var(--color-primary-dark);
  color: #fff;
  padding-block: var(--space-10);
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; margin-bottom: var(--space-3); }
.page-hero-desc { color: rgba(255,255,255,0.85); max-width: 680px; }

/* -------- 17. 通用卡片 / 面板 -------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }

/* 资质证书 hover 弹层 */
.declaration-card p { color: rgba(255, 255, 255, 0.92); }
.declaration-body { font-size: var(--fs-sm); color: rgba(255,255,255,0.9); line-height: 1.9; }
.declaration-body > p { margin-bottom: var(--space-3); }
.declaration-details { margin-top: var(--space-3); border-top: 1px solid rgba(255,255,255,0.2); padding-top: var(--space-3); }
.declaration-details summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: #fff;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius);
  transition: background var(--transition);
}
.declaration-details summary:hover { background: rgba(255,255,255,0.12); }
.declaration-details summary::-webkit-details-marker { display: none; }
.declaration-details summary::after {
  content: "";
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid currentColor;
  transition: transform var(--transition);
}
.declaration-details[open] summary::after { transform: rotate(180deg); }
.declaration-details[open] .declaration-more { margin-top: var(--space-4); }
.declaration-thumb {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  cursor: zoom-in;
  transition: transform var(--transition);
}
.declaration-thumb:hover { transform: translateY(-2px); }

.panel {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.panel-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-bg-soft);
}
.panel-title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--color-primary-dark);
}
.panel-title::before {
  content: "";
  width: 4px; height: 18px;
  background: var(--color-accent);
  border-radius: 2px;
}
.panel-body { padding: var(--space-5); }

/* -------- 18. 文档内容排版 -------- */
.prose { max-width: none; }
.prose h2 { font-size: var(--fs-xl); margin: var(--space-8) 0 var(--space-4); padding-left: var(--space-4); border-left: 4px solid var(--color-accent); }
.prose h3 { font-size: var(--fs-lg); margin: var(--space-6) 0 var(--space-3); color: var(--color-primary); }
.prose p { margin-bottom: var(--space-4); color: var(--color-text); line-height: 1.85; }
.prose ul, .prose ol { margin: var(--space-4) 0; padding-left: var(--space-5); }
.prose ul li { list-style: disc; margin-bottom: var(--space-2); line-height: 1.8; }
.prose ol li { list-style: decimal; margin-bottom: var(--space-2); line-height: 1.8; }
.prose blockquote {
  margin: var(--space-5) 0;
  padding: var(--space-4) var(--space-5);
  background: var(--color-primary-50);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text);
}
.prose table { margin: var(--space-5) 0; border: 1px solid var(--color-border); }
.prose th, .prose td { padding: var(--space-3) var(--space-4); text-align: left; border-bottom: 1px solid var(--color-border); }
.prose th { background: var(--color-primary-50); color: var(--color-primary-dark); font-weight: 600; }
.prose tbody tr:hover { background: var(--color-bg-soft); }

/* -------- 19. 时间线 -------- */
.timeline { position: relative; padding-left: var(--space-8); }
.timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 6px; bottom: 6px;
  width: 2px;
  background: var(--color-border);
}
.timeline-item { position: relative; padding-bottom: var(--space-6); }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -29px;
  top: 4px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-primary);
}
.timeline-item.highlight .timeline-dot { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.timeline-year { font-size: var(--fs-sm); color: var(--color-accent); font-weight: 700; margin-bottom: 4px; }
.timeline-title { font-size: var(--fs-md); font-weight: 600; margin-bottom: var(--space-2); color: var(--color-primary-dark); }
.timeline-desc { font-size: var(--fs-sm); color: var(--color-text-muted); line-height: 1.7; }

/* -------- 20. 表格 -------- */
.data-table { border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.data-table table { margin: 0; }
.data-table th {
  background: var(--color-primary-dark);
  color: #fff;
  font-weight: 600;
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
}
.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--color-primary-50); }

/* -------- 21. 表单 -------- */
.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.form-label .req { color: var(--color-accent); margin-left: 2px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.7rem var(--space-3);
  font-size: var(--fs-base);
  color: var(--color-text);
  background: #fff;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(15, 61, 122, 0.12);
}
.form-textarea { min-height: 120px; resize: vertical; }
.form-hint { font-size: var(--fs-xs); color: var(--color-text-subtle); margin-top: var(--space-1); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

.form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow);
}
.form-step {
  display: flex; align-items: center; gap: var(--space-3);
  padding-bottom: var(--space-5);
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.form-step-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.form-step-title { font-size: var(--fs-md); font-weight: 600; color: var(--color-primary-dark); }
.form-step-desc { font-size: var(--fs-sm); color: var(--color-text-muted); }

/* -------- 22. 徽章 -------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.2rem 0.6rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
}
.badge-primary { background: var(--color-primary-50); color: var(--color-primary); }
.badge-success { background: #DCFCE7; color: var(--color-success); }
.badge-accent { background: #FEE2E2; color: var(--color-accent); }
.badge-gold { background: #FEF3C7; color: var(--color-gold); }

/* -------- 23. 工具类 -------- */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.bg-soft { background: var(--color-bg-soft); }
.bg-primary-50 { background: var(--color-primary-50); }
.bg-white { background: #fff; }
.mt-0 { margin-top: 0; } .mt-2 { margin-top: var(--space-2); } .mt-4 { margin-top: var(--space-4); } .mt-6 { margin-top: var(--space-6); } .mt-8 { margin-top: var(--space-8); }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: var(--space-2); } .mb-4 { margin-bottom: var(--space-4); } .mb-6 { margin-bottom: var(--space-6); } .mb-8 { margin-bottom: var(--space-8); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-5); }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); } .gap-3 { gap: var(--space-3); } .gap-4 { gap: var(--space-4); }
.hidden { display: none; }

/* 跳转链接（无障碍） */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  z-index: 1000;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-4); color: #fff; }

/* 焦点态 */
:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* -------- 24. 浮动咨询按钮 -------- */
.float-consult {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-8);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  /* 锁定不占文档流宽度，防止触发横向滚动 */
  width: 56px;
}
.float-btn {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.float-btn:hover { background: var(--color-accent-dark); transform: scale(1.05); }
.float-btn svg { width: 24px; height: 24px; }
.float-btn .float-tip {
  position: absolute;
  right: 70px;
  top: 50%; transform: translateY(-50%);
  background: var(--color-text);
  color: #fff;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius);
  font-size: var(--fs-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.float-btn:hover .float-tip { opacity: 1; }
.float-btn.secondary { background: var(--color-primary); }
.float-btn.secondary:hover { background: var(--color-primary-dark); }

/* ============================================================
   响应式
   ============================================================ */
/* 中等屏幕：提前切换到汉堡菜单，避免 PC 端 nav 挤压 */
@media (max-width: 1200px) {
  .nav { display: none; }
  .menu-toggle { display: flex; }
  .header-cta .btn { display: none; }
  .header-cta { gap: var(--space-2); }
}

@media (max-width: 1024px) {
  :root { --fs-4xl: 2.5rem; --fs-3xl: 2rem; }
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-8); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .pledge-grid, .service-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(3, 1fr); }
  .trust-item:nth-child(3) { border-right: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-grid { grid-template-columns: 1fr; text-align: center; }
  .cta-actions { flex-direction: row; justify-content: center; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; --fs-4xl: 2rem; --fs-3xl: 1.75rem; --fs-2xl: 1.5rem; }
  html, body { overflow-x: hidden; max-width: 100vw; }
  .section { padding-block: var(--space-8); }
  .topbar-left .topbar-link:nth-child(n+3) { display: none; }
  .header-cta .btn:not(.btn-primary) { display: none; }
  .brand-sub { display: none; }
  .brand-name { font-size: var(--fs-base); }
  .brand-logo { width: 44px; height: 44px; }
  .pledge-grid, .service-grid, .trust-grid, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  /* 移动端浮动按钮：缩小、降低、合并为单个返回顶部，避免遮挡内容 */
  .float-consult {
    right: var(--space-3);
    bottom: var(--space-4);
    gap: var(--space-2);
    width: 44px;
  }
  .float-btn { width: 44px; height: 44px; border-radius: 50%; }
  .float-btn svg { width: 20px; height: 20px; }
  .float-btn .float-tip { display: none; }   /* 隐藏 tooltip，防溢出 */
  .footer { padding-bottom: 88px; }           /* 给底部留出浮动按钮空间 */
}

/* 移动端菜单展开 */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; right: 0;
  width: 80%; max-width: 320px;
  height: 100vh;
  background: #fff;
  box-shadow: -8px 0 32px rgba(0,0,0,0.15);
  z-index: 200;
  padding: var(--space-6);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--transition);
}
.mobile-nav.open { transform: translateX(0); display: block; }
.mobile-nav-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 150;
}
.mobile-nav-overlay.open { display: block; }
.mobile-nav-close {
  position: absolute;
  top: var(--space-4); right: var(--space-4);
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
}
.mobile-nav-close:hover { background: var(--color-bg-muted); }
.mobile-nav .nav-link {
  display: block;
  padding: var(--space-4) 0;
  font-size: var(--fs-md);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav .nav-link.active { color: var(--color-primary); }
.mobile-nav .nav-link.active::after { display: none; }
.mobile-nav-cta { margin-top: var(--space-6); }

/* ============================================================
   动效 · 动效降低偏好
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 淡入动效 */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   25. 报告缩略图 + 灯箱
   ============================================================ */

/* 报告缩略图卡片 */
.report-thumb {
  margin: 0;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.report-thumb:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.report-thumb-img {
  position: relative;
  aspect-ratio: 800 / 1130;            /* 与报告页 SVG 同比例 */
  background: var(--color-bg-soft);
  overflow: hidden;
}
.report-thumb-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;                  /* 完整显示报告内容 */
  background: #fff;
  transition: transform 0.4s ease;
}
.report-thumb:hover .report-thumb-img img {
  transform: scale(1.04);
}
.report-thumb-zoom {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 61, 122, 0.55);
  color: #fff;
  opacity: 0;
  transition: opacity var(--transition);
}
.report-thumb-zoom svg {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  padding: 8px;
  backdrop-filter: blur(4px);
}
.report-thumb:hover .report-thumb-zoom { opacity: 1; }
.report-thumb figcaption {
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: #fff;
  border-top: 1px solid var(--color-border);
}
.report-thumb-page {
  font-size: var(--fs-xs);
  color: var(--color-primary);
  font-weight: 600;
}
.report-thumb-title {
  font-size: var(--fs-sm);
  color: var(--color-text);
  line-height: 1.4;
}

/* 灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 19, 35, 0.92);
  backdrop-filter: blur(4px);
  cursor: zoom-out;
}
.lightbox-content {
  position: relative;
  z-index: 1;
  max-width: 92vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  width: auto;
  object-fit: contain;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 24px 64px rgba(0,0,0,0.4);
}
.lightbox-caption {
  margin-top: var(--space-4);
  color: #fff;
  font-size: var(--fs-sm);
  text-align: center;
}
.lightbox-close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 2;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all var(--transition);
}
.lightbox-close:hover { background: var(--color-accent); border-color: var(--color-accent); }
.lightbox-close svg { width: 22px; height: 22px; }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all var(--transition);
}
.lightbox-nav:hover { background: var(--color-primary); border-color: var(--color-primary); }
.lightbox-nav svg { width: 24px; height: 24px; }
.lightbox-prev { left: var(--space-5); }
.lightbox-next { right: var(--space-5); }

/* 移动端：报告缩略图改为单列；灯箱按钮缩小 */
@media (max-width: 768px) {
  #reportPages { grid-template-columns: 1fr !important; max-width: 360px; margin: 0 auto; }
  .lightbox-close { top: var(--space-3); right: var(--space-3); width: 38px; height: 38px; }
  .lightbox-nav { width: 42px; height: 42px; }
  .lightbox-prev { left: var(--space-2); }
  .lightbox-next { right: var(--space-2); }
  .lightbox-content img { max-height: 70vh; }
}