/* ==========================================================================
   远古翔财税官网 - 全站主样式
   设计系统 + 基础重置 + 组件样式 + 响应式
   现代简约 · 专业可信 · GEO 友好
   ========================================================================== */

/* ---------- 1. 设计系统变量 ---------- */
:root {
  /* 配色 */
  --color-primary: #0F2C5C;        /* 深蓝主色 */
  --color-primary-hover: #1E5BA8;  /* 强调蓝 */
  --color-accent: #F97316;         /* 橙色点缀 */
  --color-accent-hover: #EA580C;   /* 橙色 hover */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error: #EF4444;

  /* 中性色阶 */
  --color-bg: #FFFFFF;
  --color-bg-soft: #F8FAFC;
  --color-bg-muted: #F1F5F9;
  --color-border: #E2E8F0;
  --color-text-muted: #64748B;
  --color-text: #334155;
  --color-text-strong: #0F172A;

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei",
    "Hiragino Sans GB", "Source Han Sans CN", "Noto Sans CJK SC",
    "Segoe UI", Roboto, sans-serif;

  /* 字号 */
  --fs-xs: 0.75rem;    /* 12px */
  --fs-sm: 0.875rem;   /* 14px */
  --fs-base: 1rem;     /* 16px */
  --fs-lg: 1.125rem;   /* 18px */
  --fs-xl: 1.25rem;    /* 20px */
  --fs-2xl: 1.375rem;  /* 22px */
  --fs-3xl: 1.75rem;   /* 28px */
  --fs-4xl: 2rem;      /* 32px */
  --fs-5xl: 2.5rem;    /* 40px */

  /* 间距（8px 基准网格） */
  --space-1: 0.25rem;  /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;  /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.5rem;    /* 24px */
  --space-6: 2rem;      /* 32px */
  --space-7: 3rem;      /* 48px */
  --space-8: 4rem;      /* 64px */
  --space-9: 6rem;      /* 96px */

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

  /* 阴影 */
  --shadow-card: 0 1px 3px rgba(15, 44, 92, 0.06), 0 1px 2px rgba(15, 44, 92, 0.04);
  --shadow-card-hover: 0 10px 25px rgba(15, 44, 92, 0.10), 0 4px 6px rgba(15, 44, 92, 0.05);
  --shadow-nav: 0 1px 0 rgba(15, 44, 92, 0.06);
  --shadow-sticky: 0 4px 12px rgba(15, 44, 92, 0.08);

  /* 布局 */
  --container-max: 1200px;
  --container-pad: 24px;
  --section-gap: 64px;
  --header-height: 72px;

  /* 过渡 */
  --transition: all 0.2s ease;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary-hover);
  text-decoration: none;
  transition: var(--transition);
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- 3. 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-strong);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-lg); }

p { margin-bottom: var(--space-4); }
p:last-child { margin-bottom: 0; }

strong, b { font-weight: 600; color: var(--color-text-strong); }

/* ---------- 4. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--section-gap) 0;
}

.section-soft {
  background: var(--color-bg-soft);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-7);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header .section-subtitle {
  font-size: var(--fs-lg);
  color: var(--color-text-muted);
}

.eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-primary-hover);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.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); }

.text-center { text-align: center; }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-primary { color: var(--color-primary); }

.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 28px;
  font-size: var(--fs-base);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
  line-height: 1.2;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(15, 44, 92, 0.25);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.35);
}

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

.btn-ghost-light {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,0.25);
  color: #fff;
}

.btn-lg { padding: 14px 32px; font-size: var(--fs-lg); }
.btn-block { width: 100%; }

/* ---------- 6. 导航栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  box-shadow: var(--shadow-nav);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: var(--fs-xl);
  color: var(--color-primary);
  flex-shrink: 0;
}
.logo img { height: 40px; width: auto; }
.logo:hover { color: var(--color-primary); }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-strong);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.nav-menu a {
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--fs-base);
  padding: 8px 0;
  position: relative;
}
.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: var(--color-primary);
}
.nav-menu a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width 0.2s ease;
}
.nav-menu a:hover::after,
.nav-menu a[aria-current="page"]::after { width: 100%; }

/* 下拉菜单（服务） */
.nav-dropdown { position: relative; }
.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--fs-base);
  padding: 8px 0;
  cursor: pointer;
}
.nav-dropdown-toggle::after {
  content: "▾";
  font-size: 0.7em;
  transition: transform 0.2s ease;
}
.nav-dropdown:hover .nav-dropdown-toggle::after { transform: rotate(180deg); }
.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: -12px;
  min-width: 240px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card-hover);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown-menu a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
  color: var(--color-text);
}
.nav-dropdown-menu a:hover {
  background: var(--color-bg-soft);
  color: var(--color-primary);
}
.nav-dropdown-menu a::after { display: none; }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--fs-base);
}
.header-phone:hover { color: var(--color-primary-hover); }

/* ---------- 7. 面包屑 ---------- */
.breadcrumb {
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--fs-sm);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  padding: 14px 0;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
}
.breadcrumb li:not(:last-child)::after {
  content: "/";
  color: var(--color-border);
  margin-left: var(--space-2);
}
.breadcrumb a {
  color: var(--color-text-muted);
}
.breadcrumb a:hover { color: var(--color-primary-hover); }
.breadcrumb li[aria-current="page"] { color: var(--color-text-strong); font-weight: 500; }

/* ---------- 8. Hero 区 ---------- */
.hero {
  background: linear-gradient(135deg, #0F2C5C 0%, #1E5BA8 100%);
  color: #fff;
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -50%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(249,115,22,0.18) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -30%; left: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(30,91,168,0.4) 0%, transparent 70%);
  border-radius: 50%;
}
.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-7);
  align-items: center;
}
.hero-content { max-width: 600px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--space-4);
}
.hero h1 {
  color: #fff;
  font-size: var(--fs-5xl);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}
.hero p {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-6);
}
.hero-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stat strong {
  display: block;
  font-size: var(--fs-4xl);
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stat span {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.8);
}
.hero-visual {
  display: flex;
  justify-content: center;
}
.hero-visual img {
  max-width: 100%;
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.2));
}

/* ---------- 9. 卡片 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: var(--color-primary-hover);
}

/* 服务卡片 */
.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-card .service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #EBF2FF 0%, #F0F7FF 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}
.service-card .service-icon svg { width: 32px; height: 32px; }
.service-card h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-2);
}
.service-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-4);
  flex-grow: 1;
}
.service-card .service-link {
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-primary-hover);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.service-card .service-link::after {
  content: "→";
  transition: transform 0.2s ease;
}
.service-card:hover .service-link::after { transform: translateX(4px); }

/* 优势卡片 */
.advantage-card {
  text-align: left;
}
.advantage-card .advantage-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-soft);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}
.advantage-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
}
.advantage-card p {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
}

/* ---------- 10. 流程步骤 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}
.step {
  text-align: center;
  position: relative;
}
.step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-3);
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  font-weight: 700;
  position: relative;
  z-index: 1;
}
.step:nth-child(even) .step-number { background: var(--color-accent); }
.step h4 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-2);
}
.step p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* ---------- 11. FAQ 折叠组件 ---------- */
.faq-group {
  margin-bottom: var(--space-6);
}
.faq-group h2,
.faq-group h3 {
  font-size: var(--fs-xl);
  color: var(--color-primary);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-4);
}
.faq-group h2 {
  font-size: var(--fs-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.faq-group h2 .faq-group-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 700;
  flex-shrink: 0;
}
.faq-group h2 .faq-group-count {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  margin-left: auto;
}
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  overflow: hidden;
  background: #fff;
  transition: var(--transition);
}
.faq-item[open] {
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-card);
}
.faq-item summary {
  padding: 18px 24px;
  font-weight: 600;
  font-size: var(--fs-base);
  color: var(--color-text-strong);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "";
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--color-text-muted);
  border-bottom: 2px solid var(--color-text-muted);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(-135deg);
  border-color: var(--color-primary-hover);
}
.faq-answer {
  padding: 0 24px 20px;
  color: var(--color-text);
  font-size: var(--fs-sm);
  line-height: 1.8;
}
.faq-answer p { margin-bottom: var(--space-3); }
.faq-answer ul { padding-left: 20px; margin-bottom: var(--space-3); }
.faq-answer li {
  list-style: disc;
  margin-bottom: var(--space-1);
}

/* ---------- 12. 表格 ---------- */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin: var(--space-4) 0;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
  background: #fff;
}
th, td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
th {
  background: var(--color-bg-soft);
  font-weight: 600;
  color: var(--color-text-strong);
  white-space: nowrap;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-bg-soft); }

/* ---------- 13. 表单 ---------- */
.form-group {
  margin-bottom: var(--space-4);
}
.form-group label {
  display: block;
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-text-strong);
  margin-bottom: var(--space-2);
}
.form-group label .required { color: var(--color-error); }
.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-base);
  color: var(--color-text);
  background: #fff;
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary-hover);
  box-shadow: 0 0 0 3px rgba(30, 91, 168, 0.12);
}
.form-control::placeholder { color: #94A3B8; }
textarea.form-control { min-height: 120px; resize: vertical; }
.form-error {
  display: none;
  color: var(--color-error);
  font-size: var(--fs-sm);
  margin-top: var(--space-1);
}
.form-group.has-error .form-control { border-color: var(--color-error); }
.form-group.has-error .form-error { display: block; }

/* ---------- 14. 证书展示 ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
}
.cert-item {
  text-align: center;
}
.cert-image {
  aspect-ratio: 3/4;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.cert-image img { width: 100%; height: 100%; object-fit: cover; }
.cert-image:hover { box-shadow: var(--shadow-card-hover); }
.cert-item h4 {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text);
}

/* ---------- 15. 徽章 / 标签 ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.4;
}
.badge-primary { background: #EBF2FF; color: var(--color-primary-hover); }
.badge-accent { background: #FFF3E8; color: var(--color-accent); }
.badge-success { background: #E6FAF3; color: var(--color-success); }
.badge-warning { background: #FEF3C7; color: #92400E; }

/* ---------- 16. 提示框 ---------- */
.callout {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin: var(--space-4) 0;
  font-size: var(--fs-sm);
}
.callout-info {
  background: #EBF2FF;
  border-color: var(--color-primary-hover);
  color: var(--color-primary);
}
.callout-warning {
  background: #FEF3C7;
  border-color: var(--color-warning);
  color: #92400E;
}
.callout-success {
  background: #E6FAF3;
  border-color: var(--color-success);
  color: #065F46;
}
.callout strong { display: block; margin-bottom: 4px; }

/* ---------- 17. CTA 横幅 ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  top: -40%; right: -5%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(249,115,22,0.2) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-banner h2 {
  color: #fff;
  margin-bottom: var(--space-3);
  position: relative;
  z-index: 1;
}
.cta-banner p {
  color: rgba(255,255,255,0.9);
  font-size: var(--fs-lg);
  margin-bottom: var(--space-5);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}
.cta-banner .hero-actions {
  justify-content: center;
  position: relative;
  z-index: 1;
}

/* ---------- 18. 页脚 ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: var(--space-8) 0 var(--space-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 0.8fr;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}
.footer-col h4 {
  color: #fff;
  font-size: var(--fs-base);
  margin-bottom: var(--space-4);
}
.footer-col p {
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
}
.footer-col ul li {
  margin-bottom: var(--space-2);
}
.footer-col ul a {
  color: rgba(255,255,255,0.75);
  font-size: var(--fs-sm);
}
.footer-col ul a:hover { color: #fff; }
.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--space-3);
}
.footer-contact svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: var(--space-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.6);
}
.footer-certs {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}
.footer-cert-badge {
  font-size: var(--fs-xs);
  background: rgba(255,255,255,0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.8);
}

.footer-qr {
  text-align: left;
}
.footer-qr h4 {
  color: #fff;
  font-size: var(--fs-base);
  margin-bottom: var(--space-3);
}
.footer-qr-img {
  width: 120px;
  height: 120px;
  background: #fff;
  padding: 6px;
  border-radius: var(--radius-md);
  display: block;
}
.footer-qr p {
  font-size: var(--fs-xs);
  color: rgba(255,255,255,0.6);
  margin-top: var(--space-2);
  line-height: 1.5;
}

/* ---------- 19. 文章 / 内容排版 ---------- */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}
.article-content h2 {
  font-size: var(--fs-3xl);
  margin: var(--space-7) 0 var(--space-4);
}
.article-content h3 {
  font-size: var(--fs-xl);
  margin: var(--space-5) 0 var(--space-3);
}
.article-content p { margin-bottom: var(--space-4); }
.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: var(--space-4);
}
.article-content ul li { list-style: disc; margin-bottom: var(--space-2); }
.article-content ol li { list-style: decimal; margin-bottom: var(--space-2); }
.article-content blockquote {
  border-left: 4px solid var(--color-primary-hover);
  background: var(--color-bg-soft);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-sm);
  margin: var(--space-4) 0;
  color: var(--color-text);
}

/* 服务详情页内容 */
.service-content {
  max-width: 880px;
  margin: 0 auto;
}
.service-content h2 {
  font-size: var(--fs-3xl);
  margin: var(--space-7) 0 var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-border);
}
.service-content h2:first-of-type { margin-top: var(--space-5); }
.service-content h3 {
  font-size: var(--fs-xl);
  margin: var(--space-5) 0 var(--space-3);
  color: var(--color-primary);
}
.service-content p { margin-bottom: var(--space-4); }
.service-content ul, .service-content ol {
  padding-left: 24px;
  margin-bottom: var(--space-4);
}
.service-content ul li {
  list-style: disc;
  margin-bottom: var(--space-2);
}
.service-content ol li {
  list-style: decimal;
  margin-bottom: var(--space-2);
}

/* 服务页侧边栏布局 */
.service-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-7);
  align-items: start;
}
.service-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
}
.sidebar-card {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}
.sidebar-card h4 {
  font-size: var(--fs-base);
  margin-bottom: var(--space-3);
  color: var(--color-primary);
}
.sidebar-services li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-services li:last-child { border-bottom: none; }
.sidebar-services a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--color-text);
}
.sidebar-services a:hover { color: var(--color-primary-hover); }
.sidebar-services a[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 600;
}

/* ---------- 20. 新闻列表 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.news-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}
.news-card-image {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: var(--fs-2xl);
  font-weight: 700;
}
.news-card-body {
  padding: var(--space-5);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.news-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.news-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}
.news-card h3 a { color: var(--color-text-strong); }
.news-card h3 a:hover { color: var(--color-primary-hover); }
.news-card p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  flex-grow: 1;
}

/* ---------- 21. 页面标题区 ---------- */
.page-hero {
  background: linear-gradient(135deg, #0F2C5C 0%, #1E5BA8 100%);
  color: #fff;
  padding: 56px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute;
  top: -40%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(249,115,22,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
  color: #fff;
  margin-bottom: var(--space-3);
}
.page-hero p {
  font-size: var(--fs-lg);
  color: rgba(255,255,255,0.9);
  max-width: 640px;
  margin: 0 auto;
}

/* ---------- 22. 团队相册 ---------- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.team-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
}
.team-item img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.team-item:hover img { transform: scale(1.05); }

/* ---------- 23. 通用工具类 ---------- */
.list-check li {
  position: relative;
  padding-left: 28px;
  margin-bottom: var(--space-2);
}
.list-check li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 0;
  width: 20px; height: 20px;
  background: var(--color-success);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-6) 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 2000;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { top: 0; color: #fff; }

/* ---------- 24. 响应式 ---------- */
/* 平板 */
@media (max-width: 1024px) {
  :root {
    --section-gap: 48px;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-qr { grid-column: span 3; text-align: center; }
  .footer-qr-img { margin: 0 auto; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .service-layout { grid-template-columns: 1fr; }
  .service-sidebar { position: static; }
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 360px; margin: 0 auto; }
  h1 { font-size: var(--fs-4xl); }
  .hero h1 { font-size: 2.25rem; }
}

/* 移动端 */
@media (max-width: 768px) {
  :root {
    --container-pad: 16px;
    --section-gap: 40px;
    --header-height: 64px;
  }
  .nav-toggle { display: flex; }
  .nav-menu, .header-phone { display: none; }
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sticky);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4) var(--container-pad);
    gap: 0;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .main-nav.is-open { transform: translateY(0); }
  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-menu a, .nav-dropdown-toggle {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: var(--fs-base);
  }
  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 var(--space-4);
    background: transparent;
  }
  .nav-dropdown-menu a {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
  }
  .header-actions { gap: var(--space-2); }
  .header-actions .btn-accent { padding: 8px 16px; font-size: var(--fs-sm); }

  .hero { padding: 48px 0; }
  .hero h1 { font-size: 1.875rem; }
  .hero p { font-size: var(--fs-base); }
  .hero-stats { gap: var(--space-4); flex-wrap: wrap; }
  .hero-stat strong { font-size: var(--fs-3xl); }

  h1 { font-size: var(--fs-3xl); }
  h2 { font-size: var(--fs-2xl); }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }

  .section-header h2 { font-size: var(--fs-2xl); }
  .cta-banner { padding: var(--space-6) var(--space-4); }

  .faq-item summary { padding: 14px 16px; font-size: var(--fs-sm); }
  .faq-answer { padding: 0 16px 16px; }

  .footer-bottom { flex-direction: column; text-align: center; }
}

/* 大屏 */
@media (min-width: 1280px) {
  :root { --container-max: 1200px; }
}

/* 打印 */
@media print {
  .site-header, .site-footer, .nav-toggle, .cta-banner, .breadcrumb { display: none; }
  body { color: #000; }
  a { color: #000; text-decoration: underline; }
}