/* ==========================================
   路投社出海 - 企业官网统一样式
   品牌色：深海蓝 #1A3A6B + 科技金 #C8960C
   ========================================== */

/* ── CSS 变量 ── */
:root {
  --primary: #1A3A6B;
  --primary-light: #2A5099;
  --primary-dark: #0F2347;
  --accent: #C8960C;
  --accent-light: #E8AE1A;
  --accent-dark: #A07A08;
  --white: #FFFFFF;
  --off-white: #F5F7FA;
  --light-gray: #E8EDF4;
  --gray: #6B7280;
  --dark-gray: #374151;
  --text: #1F2937;
  --text-light: #6B7280;
  --border: #D1DCF0;
  --shadow-sm: 0 1px 3px rgba(26,58,107,0.08);
  --shadow-md: 0 4px 16px rgba(26,58,107,0.12);
  --shadow-lg: 0 8px 32px rgba(26,58,107,0.16);
  --shadow-xl: 0 16px 48px rgba(26,58,107,0.20);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 56px;
  --space-2xl: 80px;
  --transition: 0.25s ease;
  --navbar-height: 72px;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Noto Sans SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── 排版 ── */
h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.2; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.3; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.4; }
h4 { font-size: 1rem; font-weight: 600; }
p { line-height: 1.7; color: var(--dark-gray); }

/* ── 布局容器 ── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

.section-header h2 {
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.section-header p {
  font-size: 1.0625rem;
  color: var(--gray);
}

.section-tag {
  display: inline-block;
  background: rgba(200, 150, 12, 0.1);
  color: var(--accent-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

/* ── 导航栏 ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--navbar-height);
  transition: background var(--transition), box-shadow var(--transition);
  background: rgba(26, 58, 107, 0.98);
}

.navbar.scrolled {
  background: rgba(26, 58, 107, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.navbar-logo .logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.navbar-logo .logo-main {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.navbar-logo .logo-sub {
  font-size: 0.6875rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.05em;
  font-weight: 400;
}

.navbar-icon {
  width: 36px;
  height: 36px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-menu li a {
  display: block;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.navbar-menu li a:hover,
.navbar-menu li a.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.12);
}

.navbar-menu li a.active {
  color: var(--accent-light);
}

.navbar-cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}

.navbar-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-sm { padding: 7px 16px; font-size: 0.875rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-xl { padding: 16px 40px; font-size: 1.0625rem; }

.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(200, 150, 12, 0.35);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
}

/* ── Hero 区块 ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0F2347 0%, #1A3A6B 50%, #1E4D8C 100%);
  overflow: hidden;
  padding-top: var(--navbar-height);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 50%, rgba(200, 150, 12, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 30%, rgba(255,255,255,0.04) 0%, transparent 40%);
  pointer-events: none;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding: var(--space-2xl) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 150, 12, 0.15);
  border: 1px solid rgba(200, 150, 12, 0.35);
  border-radius: 100px;
  padding: 6px 16px;
  margin-bottom: var(--space-lg);
  font-size: 0.875rem;
  color: var(--accent-light);
  font-weight: 500;
}

.hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-light);
  animation: pulse 2s infinite;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin-bottom: var(--space-md);
}

.hero h1 .highlight {
  color: var(--accent-light);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.75);
  max-width: 580px;
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255,255,255,0.12);
}

.hero-stat-number {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-light);
  font-family: 'Montserrat', sans-serif;
  line-height: 1.2;
}

.hero-stat-label {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

/* ── 信任背书栏 ── */
.trust-bar {
  background: var(--off-white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--space-md) 0;
}

.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--primary);
}

.trust-item .trust-icon {
  font-size: 1.5rem;
}

/* ── 服务卡片 ── */
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26,58,107,0.2);
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  background: rgba(26,58,107,0.06);
  color: var(--primary);
}

.service-card h3 {
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--gray);
  margin-bottom: var(--space-md);
  line-height: 1.7;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 600;
  transition: gap var(--transition);
}

.service-link:hover { gap: 10px; }

/* ── 案例卡片 ── */
.case-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
}

.case-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.case-card-header {
  padding: var(--space-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: var(--white);
  position: relative;
}

.case-card-body {
  padding: var(--space-lg);
}

.case-tag {
  display: inline-block;
  background: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: var(--space-xs);
}

.case-card h3 {
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

.case-stats {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--light-gray);
}

.case-stat-item {
  flex: 1;
  min-width: 80px;
}

.case-stat-num {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--accent-dark);
  font-family: 'Montserrat', sans-serif;
}

.case-stat-label {
  font-size: 0.75rem;
  color: var(--gray);
  margin-top: 2px;
}

/* ── 权威背书区 ── */
.badge-section {
  background: var(--primary);
  padding: var(--space-xl) 0;
}

.badge-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.badge-item {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  transition: background var(--transition);
}

.badge-item:hover {
  background: rgba(255,255,255,0.1);
}

.badge-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
  display: block;
}

.badge-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 4px;
}

.badge-desc {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

/* ── 新闻卡片 ── */
.news-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.news-card-img {
  height: 200px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}

.news-card-body {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.news-tag {
  display: inline-block;
  background: rgba(26,58,107,0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
}

.news-date {
  font-size: 0.8125rem;
  color: var(--gray);
}

.news-card h3 {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: var(--space-xs);
  line-height: 1.5;
  flex: 1;
}

.news-card p {
  font-size: 0.875rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ── CTA 区块 ── */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
  padding: var(--space-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 30% 50%, rgba(200, 150, 12, 0.12) 0%, transparent 60%);
  pointer-events: none;
}

.cta-inner { position: relative; z-index: 1; }

.cta-section h2 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.cta-section p {
  color: rgba(255,255,255,0.75);
  font-size: 1.0625rem;
  max-width: 560px;
  margin: 0 auto var(--space-lg);
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ── 页脚 ── */
.footer {
  background: #0D1B33;
  color: rgba(255,255,255,0.75);
  padding: var(--space-2xl) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
  color: rgba(255,255,255,0.55);
}

.footer-social {
  display: flex;
  gap: var(--space-xs);
}

.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  transition: background var(--transition), color var(--transition);
}

.footer-social a:hover {
  background: var(--accent);
  color: var(--white);
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  margin-bottom: 10px;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--accent-light); }

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
}

.footer-contact-icon { font-size: 1rem; flex-shrink: 0; }

.footer-bottom {
  padding: var(--space-md) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
}

/* ── 网格布局 ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }

/* ── 通用卡片 ── */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  padding: var(--space-lg);
  transition: all var(--transition);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

/* ── 页面 Banner（内页用）── */
.page-banner {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: calc(var(--navbar-height) + var(--space-xl)) 0 var(--space-xl);
  position: relative;
  overflow: hidden;
}

.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.page-banner-content { position: relative; z-index: 1; }

.page-banner h1 {
  color: var(--white);
  margin-bottom: var(--space-sm);
}

.page-banner p {
  color: rgba(255,255,255,0.7);
  font-size: 1.0625rem;
  max-width: 560px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

.breadcrumb a { color: rgba(255,255,255,0.6); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb .sep { color: rgba(255,255,255,0.3); }

/* ── 动画 ── */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-delay-1 { animation-delay: 0.1s; opacity: 0; }
.animate-delay-2 { animation-delay: 0.2s; opacity: 0; }
.animate-delay-3 { animation-delay: 0.3s; opacity: 0; }
.animate-delay-4 { animation-delay: 0.4s; opacity: 0; }
.animate-delay-5 { animation-delay: 0.5s; opacity: 0; }

.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-reveal-delay-1 { transition-delay: 0.1s; }
.scroll-reveal-delay-2 { transition-delay: 0.2s; }
.scroll-reveal-delay-3 { transition-delay: 0.3s; }
.scroll-reveal-delay-4 { transition-delay: 0.4s; }

/* ── 分割线与辅助 ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-xl) 0;
}

.text-center { text-align: center; }
.text-white { color: var(--white); }
.text-accent { color: var(--accent); }
.text-primary { color: var(--primary); }
.mt-4 { margin-top: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-lg); }

/* ── 表单 ── */
.form-group { margin-bottom: var(--space-md); }

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: 6px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,58,107,0.08);
}

.form-textarea { min-height: 120px; resize: vertical; }

/* ── 标签筛选 ── */
.filter-tabs {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.filter-tab {
  padding: 7px 18px;
  border-radius: 100px;
  border: 1.5px solid var(--border);
  background: var(--white);
  color: var(--gray);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* ── 时间轴 ── */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--primary));
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-lg);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 3px rgba(200, 150, 12, 0.2);
}

.timeline-year {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ── 响应式 ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .badge-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 40px;
    --space-2xl: 56px;
  }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.625rem; }

  .navbar-menu {
    display: none;
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--primary-dark);
    padding: var(--space-md);
    flex-direction: column;
    gap: 4px;
    border-top: 1px solid rgba(255,255,255,0.1);
  }

  .navbar-menu.open { display: flex; }
  .navbar-menu li a { padding: 10px 16px; }
  .navbar-toggle { display: flex; }

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

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

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .hero-btns { flex-direction: column; }
  .hero-btns .btn { width: 100%; max-width: 300px; }

  .trust-bar-inner { gap: var(--space-md); }

  .cta-btns { flex-direction: column; align-items: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
  .badge-grid { grid-template-columns: 1fr; }
}