:root {
  --bg-dark: #1a1a1e;
  --bg-card: #222228;
  --bg-card-hover: #2a2a32;
  --text-primary: #e8e8ec;
  --text-secondary: #9a9aa5;
  --accent: #2962ff;
  --accent-hover: #1e4fd8;
  --border: #333340;
  --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 15px;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* ===== 顶部导航 ===== */
.site-header {
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 20px;
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: #1a1a1e;
  letter-spacing: -0.5px;
}

.main-nav { flex: 1; }
.main-nav > ul { display: flex; gap: 4px; }
.main-nav > ul > li { position: relative; }

.main-nav > ul > li > a {
  display: block;
  padding: 10px 16px;
  color: #333;
  font-weight: 500;
  font-size: 15px;
  border-radius: 6px;
  transition: all 0.2s;
}

.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active {
  color: var(--accent);
  background: rgba(41,98,255,0.06);
}

.sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 160px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  padding: 8px;
  z-index: 100;
}

.has-sub:hover .sub-menu { display: block; }

.sub-menu li a {
  display: block;
  padding: 10px 16px;
  color: #444;
  border-radius: 6px;
  font-size: 14px;
}

.sub-menu li a:hover {
  background: rgba(41,98,255,0.06);
  color: var(--accent);
}

.header-actions { display: flex; gap: 10px; }

.btn {
  display: inline-block;
  padding: 9px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

.btn-outline {
  background: transparent;
  color: #333;
  border: 1.5px solid #ccc;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.header-contact-bar {
  background: #f5f5f7;
  text-align: center;
  padding: 6px 0;
  font-size: 13px;
  color: #666;
}
.header-contact-bar a { color: var(--accent); }

.mobile-toggle { display: none; }

/* ===== 主要内容区 ===== */
.site-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  min-height: 60vh;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.page-subtitle {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 15px;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 28px 24px;
  border: 1px solid var(--border);
  transition: all 0.25s;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(41,98,255,0.3);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 32px;
  margin-bottom: 14px;
  display: block;
}

.card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.card .card-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
}

/* 新闻列表 */
.news-list { display: flex; flex-direction: column; gap: 16px; }

.news-item {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 22px 24px;
  border: 1px solid var(--border);
  transition: all 0.2s;
}

.news-item:hover { border-color: rgba(41,98,255,0.3); }

.news-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.news-item h3 a { color: var(--text-primary); }
.news-item h3 a:hover { color: var(--accent); }

.news-meta {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.news-item p {
  color: var(--text-secondary);
  font-size: 14px;
}

/* 文章内容 */
.article-content {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 36px;
  border: 1px solid var(--border);
}

.article-content h1 {
  font-size: 24px;
  margin-bottom: 16px;
}

.article-content .article-body {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-primary);
}

.article-content .article-body img {
  border-radius: 8px;
  margin: 16px 0;
}

/* 分页 */
.pagination {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 32px;
}

.pagination a, .pagination span {
  padding: 8px 14px;
  border-radius: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 14px;
}

.pagination .current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ===== 底部 ===== */
.site-footer {
  background: var(--white);
  color: #333;
  margin-top: 60px;
  border-top: 1px solid #eee;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #1a1a1e;
}

.footer-col p {
  color: #666;
  font-size: 14px;
  line-height: 1.8;
}

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
  color: #666;
}

.footer-col ul li a {
  color: #666;
}
.footer-col ul li a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid #eee;
  padding: 20px;
  text-align: center;
  font-size: 13px;
  color: #999;
}

.footer-bottom a { color: #999; }
.footer-bottom a:hover { color: var(--accent); }

/* ===== 手机端固定底部按钮 ===== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--white);
  border-top: 1px solid #eee;
  padding: 8px 16px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  gap: 12px;
}

.mobile-bottom-bar a {
  flex: 1;
  text-align: center;
  padding: 12px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
}

.mobile-btn-open {
  background: var(--accent);
  color: #fff !important;
}

.mobile-btn-admin {
  background: #f0f0f5;
  color: #333 !important;
  border: 1px solid #ddd;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .header-inner { height: 56px; padding: 0 16px; }
  
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  
  .main-nav.open { display: block; }
  .main-nav > ul { flex-direction: column; gap: 0; }
  .main-nav > ul > li > a { padding: 14px 16px; border-radius: 8px; }
  
  .sub-menu {
    position: static;
    display: block !important;
    box-shadow: none;
    padding: 0 0 0 16px;
    background: transparent;
  }
  
  .header-actions { display: none; }
  .mobile-toggle { display: flex; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
  .mobile-toggle span { display: block; width: 22px; height: 2px; background: #333; border-radius: 2px; }
  
  .site-main { padding: 24px 16px; }
  .page-title { font-size: 22px; }
  .card-grid { grid-template-columns: 1fr; }
  .article-content { padding: 20px; }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 32px 16px 24px;
  }
  
  .mobile-bottom-bar { display: flex; }
  
  /* 给内容区底部留出空间，防止被固定栏遮挡 */
  .site-main { padding-bottom: 80px; }
  .site-footer { margin-bottom: 70px; }
}
/* =========================================
   新增：办公室分布 / 时间线 / 账户 / FAQ / 流程
   ========================================= */

/* 章节通用标题 */
.section-block { margin-top: 56px; }
.section-block:first-of-type { margin-top: 0; }

/* 办公室分布网格 */
.office-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.office-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
  transition: all 0.25s;
}
.office-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(41,98,255,0.35);
  transform: translateY(-2px);
}
.office-card .flag { font-size: 26px; margin-bottom: 10px; display: block; }
.office-card h4 { font-size: 16px; margin-bottom: 8px; color: var(--text-primary); }
.office-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.office-card .office-time {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: #2962ff;
  background: rgba(41,98,255,0.1);
  padding: 3px 10px;
  border-radius: 20px;
}

/* 平台介绍区块 */
.intro-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.intro-text h3 { font-size: 20px; margin-bottom: 12px; }
.intro-text p { color: var(--text-secondary); margin-bottom: 10px; line-height: 1.8; font-size: 14px; }
.intro-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.intro-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 16px;
  text-align: center;
}
.intro-stat .num {
  font-size: 26px;
  font-weight: 800;
  color: #2962ff;
  display: block;
  margin-bottom: 4px;
}
.intro-stat .label { font-size: 13px; color: var(--text-secondary); }

/* 发展历程时间线 */
.timeline {
  position: relative;
  padding-left: 32px;
  border-left: 2px solid var(--border);
  margin-left: 8px;
}
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -41px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #2962ff;
  border: 3px solid var(--bg-dark);
  box-shadow: 0 0 0 2px rgba(41,98,255,0.35);
}
.timeline-year {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #2962ff;
  background: rgba(41,98,255,0.12);
  padding: 2px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}
.timeline-item h4 { font-size: 15px; margin-bottom: 6px; }
.timeline-item p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.7; }

/* 账户类型对比 */
.account-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.account-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 22px;
  position: relative;
  transition: all 0.25s;
}
.account-card:hover { border-color: rgba(41,98,255,0.4); transform: translateY(-3px); }
.account-card.featured {
  border-color: #2962ff;
  box-shadow: 0 8px 30px rgba(41,98,255,0.18);
}
.account-card .badge {
  position: absolute;
  top: -12px;
  right: 18px;
  background: #2962ff;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}
.account-card h4 {
  font-size: 18px;
  margin-bottom: 6px;
  color: var(--text-primary);
}
.account-card .account-sub { font-size: 12.5px; color: var(--text-secondary); margin-bottom: 16px; }
.account-card ul { margin-bottom: 18px; }
.account-card ul li {
  font-size: 13.5px;
  color: var(--text-secondary);
  padding: 6px 0 6px 20px;
  position: relative;
  border-bottom: 1px dashed rgba(255,255,255,0.05);
}
.account-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #2962ff;
  font-weight: 700;
}

/* 开户流程步骤 */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
  counter-reset: step;
}
.step-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px 20px;
  position: relative;
  counter-increment: step;
}
.step-item::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #2962ff;
  color: #fff;
  border-radius: 50%;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 14px;
}
.step-item h4 { font-size: 15px; margin-bottom: 8px; }
.step-item p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.7; }

/* FAQ 折叠 */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item[open] { border-color: rgba(41,98,255,0.4); }
.faq-item summary {
  padding: 16px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  color: var(--text-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 20px;
  color: #2962ff;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform 0.2s;
}
.faq-item[open] summary::after { content: '−'; }
.faq-item .faq-answer {
  padding: 0 22px 18px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 14px;
}

/* 监管信息卡片 */
.reg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.reg-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 22px;
}
.reg-card .reg-icon { font-size: 24px; display: block; margin-bottom: 10px; }
.reg-card h4 { font-size: 15px; margin-bottom: 8px; }
.reg-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.reg-card .reg-no {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: #2962ff;
  font-family: monospace;
  background: rgba(41,98,255,0.1);
  padding: 3px 10px;
  border-radius: 6px;
}

/* 优点列表 */
.advantages {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.adv-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.adv-item .adv-icon {
  font-size: 22px;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(41,98,255,0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.adv-item h4 { font-size: 14.5px; margin-bottom: 6px; }
.adv-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }

/* 响应式补充 */
@media (max-width: 768px) {
  .intro-block { grid-template-columns: 1fr; gap: 24px; }
  .intro-stats { grid-template-columns: repeat(2, 1fr); }
  .section-block { margin-top: 40px; }
  .timeline { padding-left: 26px; }
  .timeline-item::before { left: -35px; }
}