:root {
  --primary: #00875A;
  --primary-dark: #006644;
  --primary-light: #E6F5F0;
  --dark: #132A4A;
  --text: #333333;
  --text-light: #666666;
  --border: #E0E0E0;
  --bg-light: #F8FAFB;
  --white: #FFFFFF;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text); font-size: 16px; line-height: 1.6; background: var(--white);
}
a { color: var(--primary); text-decoration: none; transition: color .3s; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 顶部导航 */
.site-header { background: var(--white); box-shadow: 0 2px 8px rgba(0,0,0,.06); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--primary); }
.logo-icon { background: var(--primary); color: #fff; width: 38px; height: 38px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 800; }
.main-nav ul { display: flex; list-style: none; gap: 4px; }
.main-nav > ul > li > a { padding: 10px 16px; color: var(--text); font-weight: 500; border-radius: 6px; display: flex; align-items: center; gap: 4px; }
.main-nav > ul > li > a:hover, .main-nav > ul > li > a.active { color: var(--primary); background: var(--primary-light); }
/* ==================== 交易产品主菜单链接（不可点击）==================== */
.has-sub-link { cursor: pointer; user-select: none; }
.has-sub-link:hover { color: var(--primary); background: var(--primary-light); }

/* ==================== 子菜单（强制纵向排列）==================== */
.has-sub { position: relative; }

.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
  border-radius: 8px;
  min-width: 200px;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
  list-style: none;
  /* 关键：强制纵向 */
  display: flex !important;
  flex-direction: column !important;
  flex-wrap: nowrap !important;
  z-index: 999;
}

.has-sub:hover .sub-menu {
  opacity: 1;
  visibility: visible;
}

/* 子菜单每一项占满整行 */
.sub-menu li {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sub-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  color: var(--text);
  font-size: 15px;
  white-space: nowrap;
  width: 100%;
  box-sizing: border-box;
}

.sub-menu li a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.sub-menu li a i {
  width: 18px;
  text-align: center;
  color: var(--primary);
  flex-shrink: 0;
}

.header-actions { display: flex; gap: 10px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 22px; border-radius: 6px; font-size: 15px; font-weight: 500; cursor: pointer; border: 2px solid transparent; transition: all .3s; }
.btn-primary { background: var(--primary); color: #fff !important; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary); color: #fff !important; }

.header-qq { background: var(--primary-light); text-align: center; padding: 6px 0; font-size: 14px; color: var(--primary-dark); }
.qq-copy { cursor: pointer; font-weight: 700; text-decoration: underline dotted; }
.qq-copy:hover { color: var(--primary); }
.mobile-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--text); cursor: pointer; }

/* 主要内容区 */
.hero { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; padding: 80px 0; text-align: center; }
.hero h1 { font-size: 40px; margin-bottom: 16px; }
.hero p { font-size: 18px; opacity: .9; max-width: 700px; margin: 0 auto 30px; }
.page-hero { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%); color: #fff; padding: 50px 0; text-align: center; }
.page-hero h1 { font-size: 32px; margin-bottom: 10px; }
.page-hero p { opacity: .85; }

/* 产品网格 */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding: 60px 0; }
.product-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; text-align: center; transition: all .3s; }
.product-card:hover { border-color: var(--primary); box-shadow: 0 8px 24px rgba(0,135,90,.1); transform: translateY(-4px); }
.product-card .icon { width: 60px; height: 60px; background: var(--primary-light); color: var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 16px; }
.product-card h3 { font-size: 18px; margin-bottom: 10px; }
.product-card p { font-size: 14px; color: var(--text-light); }

/* 新闻列表 */
.news-list { padding: 40px 0; }
.news-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.news-thumb { width: 200px; height: 130px; object-fit: cover; border-radius: var(--radius); flex-shrink: 0; }
.news-info h3 { font-size: 18px; margin-bottom: 8px; }
.news-info h3 a { color: var(--text); }
.news-info h3 a:hover { color: var(--primary); }
.news-info .meta { font-size: 13px; color: var(--text-light); margin-bottom: 8px; }
.news-info p { font-size: 14px; color: var(--text-light); }

/* 文章内容 */
.article-content { max-width: 800px; margin: 40px auto; padding: 0 20px; }
.article-content h1 { font-size: 28px; margin-bottom: 16px; }
.article-content .meta { color: var(--text-light); font-size: 14px; margin-bottom: 24px; }
.article-body { font-size: 16px; line-height: 1.8; word-wrap: break-word; overflow-wrap: break-word; }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius); margin: 16px 0; }
.article-body p { margin-bottom: 16px; word-break: break-word; }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.data-table th, .data-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { background: var(--primary-light); color: var(--primary-dark); font-weight: 600; }
.data-table tr:hover td { background: #FAFEFC; }

/* 底部 */
.site-footer { background: var(--white); border-top: 1px solid var(--border); margin-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr 1fr; gap: 30px; padding: 50px 0 30px; }
.footer-col h4 { font-size: 16px; margin-bottom: 16px; color: var(--dark); }
.footer-col p { font-size: 14px; color: var(--text-light); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; font-size: 14px; }
.footer-col ul li a { color: var(--text-light); }
.footer-col ul li a:hover { color: var(--primary); }
.footer-contact li { display: flex; align-items: center; gap: 8px; }
.footer-contact li i { color: var(--primary); width: 16px; }
.footer-bottom { border-top: 1px solid var(--border); padding: 16px 0; text-align: center; font-size: 13px; color: var(--text-light); }

.mobile-bottom-bar { display: none; position: fixed; bottom: 0; left: 0; right: 0; background: #fff; border-top: 1px solid var(--border); padding: 8px 12px; gap: 10px; z-index: 1000; }
.mobile-bottom-bar .btn { flex: 1; padding: 10px; font-size: 14px; }

/* 产品详情 */
.product-detail { padding: 40px 0 60px; }
.product-detail h2 { font-size: 24px; color: var(--primary-dark); margin: 30px 0 16px; padding-left: 12px; border-left: 4px solid var(--primary); }
.product-detail ul { padding-left: 20px; margin-bottom: 20px; }
.product-detail ul li { margin-bottom: 8px; color: var(--text-light); }

/* 404页面 */
.page-404 { text-align: center; padding: 120px 20px; }
.page-404 .code { font-size: 120px; font-weight: 800; color: var(--primary-light); line-height: 1; }
.page-404 h2 { font-size: 24px; margin: 20px 0 10px; }
.page-404 p { color: var(--text-light); margin-bottom: 30px; }

/* 移动端适配 */
@media (max-width: 992px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .header-actions { display: none; }
  .mobile-toggle { display: block; }
  .main-nav { position: fixed; top: 0; left: -280px; width: 280px; height: 100vh; background: #fff; box-shadow: 4px 0 12px rgba(0,0,0,.1); transition: left .3s; overflow-y: auto; padding-top: 60px; z-index: 1001; }
  .main-nav.open { left: 0; }
  .main-nav ul { flex-direction: column; padding: 20px; }
  .main-nav > ul > li > a { padding: 12px 16px; }
    .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    padding: 0 0 0 16px;
    display: none;
    flex-direction: column !important;
  }
  .has-sub.open .sub-menu {
    display: flex !important;
  }
  .has-sub-link .fa-chevron-down {
    transition: transform .3s;
  }
  .has-sub.open .has-sub-link .fa-chevron-down {
    transform: rotate(180deg);
  }
  .mobile-bottom-bar { display: flex; }
  body { padding-bottom: 70px; }
  .site-footer { padding-bottom: 0; }
  .hero h1 { font-size: 28px; }
  .news-item { flex-direction: column; }
  .news-thumb { width: 100%; height: 180px; }
}
@media (max-width: 576px) {
  .product-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}
/* ==================== 面包屑 ==================== */
.breadcrumb { background: #F8FAFB; border-bottom: 1px solid var(--border); padding: 14px 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 14px; color: var(--text-light); }
.breadcrumb li a { color: var(--text-light); }
.breadcrumb li a:hover { color: var(--primary); }
.breadcrumb li.sep { color: #BBB; font-size: 12px; }
.breadcrumb li.current { color: var(--primary); font-weight: 600; }
.breadcrumb li.current i { font-size: 12px; margin-right: 4px; }

/* ==================== 数据统计条 ==================== */
.stats-bar { background: var(--primary); color: #fff; padding: 40px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stats-grid .num { font-size: 38px; font-weight: 800; line-height: 1; }
.stats-grid .num small { font-size: 20px; margin-left: 2px; }
.stats-grid .label { font-size: 14px; opacity: .9; margin-top: 8px; }

/* ==================== 首页介绍板块 ==================== */
.section { padding: 70px 0; }
.section-gray { background: #F8FAFB; }
.section-title { text-align: center; margin-bottom: 44px; }
.section-title h2 { font-size: 30px; color: var(--dark); margin-bottom: 10px; }
.section-title .sub { color: var(--text-light); font-size: 15px; }
.section-title .line { width: 60px; height: 4px; background: var(--primary); margin: 14px auto 0; border-radius: 2px; }

.intro-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 50px; align-items: center; }
.intro-text h3 { font-size: 24px; color: var(--primary-dark); margin-bottom: 16px; }
.intro-text p { color: var(--text-light); line-height: 1.9; margin-bottom: 14px; }
.intro-points { list-style: none; margin-top: 20px; }
.intro-points li { display: flex; gap: 10px; margin-bottom: 12px; color: #444; font-size: 15px; }
.intro-points li i { color: var(--primary); margin-top: 4px; }
.intro-visual { background: linear-gradient(135deg, #E6F5F0, #F0FBF7); border-radius: 16px; padding: 40px 30px; border: 1px solid #D3EDE3; }
.intro-visual .row { display: flex; justify-content: space-between; padding: 14px 0; border-bottom: 1px dashed #C9E6DA; }
.intro-visual .row:last-child { border-bottom: none; }
.intro-visual .k { color: var(--text-light); font-size: 14px; }
.intro-visual .v { color: var(--primary-dark); font-weight: 700; }

/* ==================== 全球奖项 ==================== */
.awards-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.award-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 26px 20px; text-align: center; transition: all .3s; }
.award-card:hover { border-color: var(--primary); box-shadow: 0 10px 26px rgba(0,135,90,.12); transform: translateY(-4px); }
.award-card .medal { width: 58px; height: 58px; margin: 0 auto 14px; border-radius: 50%; background: linear-gradient(135deg, #FFD86B, #F0A500); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 24px; box-shadow: 0 6px 14px rgba(240,165,0,.35); }
.award-card h4 { font-size: 15px; color: var(--dark); margin-bottom: 8px; line-height: 1.5; }
.award-card .year { font-size: 13px; color: var(--primary); font-weight: 600; }
.award-card .org { font-size: 12px; color: #999; margin-top: 6px; }

/* ==================== 全球办公室 ==================== */
.office-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.office-card { background: #fff; border-left: 4px solid var(--primary); border-radius: 8px; padding: 22px 24px; box-shadow: 0 2px 10px rgba(0,0,0,.05); transition: all .3s; }
.office-card:hover { transform: translateX(4px); box-shadow: 0 8px 22px rgba(0,135,90,.12); }
.office-card .city { font-size: 18px; font-weight: 700; color: var(--dark); display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.office-card .city i { color: var(--primary); }
.office-card .tag { display: inline-block; font-size: 12px; background: var(--primary-light); color: var(--primary-dark); padding: 2px 8px; border-radius: 4px; margin-bottom: 10px; }
.office-card .addr { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* ==================== 监管信息卡片 ==================== */
.reg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.reg-card { background: #fff; border: 1px solid var(--border); border-top: 4px solid var(--primary); border-radius: 10px; padding: 24px; }
.reg-card .org-name { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.reg-card .reg-no { font-family: monospace; background: #F8FAFB; padding: 8px 12px; border-radius: 6px; color: var(--primary-dark); font-size: 14px; margin-bottom: 12px; }
.reg-card ul { list-style: none; font-size: 13px; color: var(--text-light); }
.reg-card ul li { padding: 4px 0; display: flex; gap: 8px; }
.reg-card ul li i { color: var(--primary); margin-top: 4px; font-size: 11px; }

/* ==================== 发展历程时间轴 ==================== */
.timeline { position: relative; padding-left: 34px; }
.timeline::before { content: ''; position: absolute; left: 10px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(to bottom, var(--primary), #C9E6DA); }
.timeline-item { position: relative; padding-bottom: 28px; }
.timeline-item::before { content: ''; position: absolute; left: -30px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--primary); }
.timeline-item .year { font-weight: 800; color: var(--primary); font-size: 17px; margin-bottom: 4px; }
.timeline-item .desc { color: var(--text-light); font-size: 15px; line-height: 1.7; }

/* ==================== 开户流程 ==================== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 30px 22px; text-align: center; position: relative; transition: all .3s; }
.step-card:hover { border-color: var(--primary); box-shadow: 0 10px 26px rgba(0,135,90,.1); }
.step-card .step-no { position: absolute; top: -18px; left: 50%; transform: translateX(-50%); width: 36px; height: 36px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; box-shadow: 0 4px 12px rgba(0,135,90,.35); }
.step-card .step-icon { font-size: 30px; color: var(--primary); margin: 18px 0 12px; }
.step-card h4 { font-size: 16px; margin-bottom: 8px; color: var(--dark); }
.step-card p { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* ==================== 产品详情：介绍与FAQ ==================== */
.product-intro { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 30px; margin-bottom: 30px; }
.product-intro p { color: #555; line-height: 1.9; margin-bottom: 12px; }
.product-intro p:last-child { margin-bottom: 0; }

.faq-list { margin-top: 10px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; margin-bottom: 12px; overflow: hidden; transition: all .3s; }
.faq-item.open { border-color: var(--primary); box-shadow: 0 6px 18px rgba(0,135,90,.08); }
.faq-q { padding: 18px 22px; display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; color: var(--dark); font-size: 15px; gap: 12px; }
.faq-q:hover { color: var(--primary); }
.faq-q .icon { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 12px; transition: all .3s; }
.faq-item.open .faq-q .icon { background: var(--primary); color: #fff; transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 500px; }
.faq-a-inner { padding: 0 22px 20px; color: var(--text-light); line-height: 1.8; font-size: 14px; border-top: 1px dashed var(--border); padding-top: 14px; }

/* ==================== 新闻列表右侧栏 ==================== */
.news-layout { display: grid; grid-template-columns: 1fr 320px; gap: 34px; padding: 40px 0 60px; align-items: start; }
.sidebar-box { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 22px; margin-bottom: 22px; }
.sidebar-box h3 { font-size: 16px; color: var(--dark); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary-light); display: flex; align-items: center; gap: 8px; }
.sidebar-box h3 i { color: var(--primary); }
.hot-list { list-style: none; counter-reset: hot; }
.hot-list li { counter-increment: hot; position: relative; padding: 10px 0 10px 34px; border-bottom: 1px dashed var(--border); font-size: 14px; }
.hot-list li:last-child { border-bottom: none; }
.hot-list li::before { content: counter(hot); position: absolute; left: 0; top: 12px; width: 20px; height: 20px; border-radius: 4px; background: var(--primary-light); color: var(--primary-dark); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.hot-list li:nth-child(1)::before { background: #FFE1B3; color: #B26A00; }
.hot-list li:nth-child(2)::before { background: #E3E9F3; color: #4A5568; }
.hot-list li:nth-child(3)::before { background: #F7DCC6; color: #99532A; }
.hot-list li a { color: var(--text); display: block; line-height: 1.6; }
.hot-list li a:hover { color: var(--primary); }
.hot-list li .hot-meta { font-size: 12px; color: #999; margin-top: 4px; }
.hot-list li .hot-meta i { color: var(--primary); margin-right: 4px; }

/* ==================== 响应式适配 ==================== */
@media (max-width: 992px) {
  .intro-layout { grid-template-columns: 1fr; gap: 30px; }
  .awards-grid { grid-template-columns: repeat(2, 1fr); }
  .office-grid { grid-template-columns: repeat(2, 1fr); }
  .reg-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 10px; }
  .news-layout { grid-template-columns: 1fr; }
  .sidebar { order: -1; }
}
@media (max-width: 576px) {
  .awards-grid { grid-template-columns: 1fr; }
  .office-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; row-gap: 34px; }
  .section { padding: 46px 0; }
  .section-title h2 { font-size: 24px; }
}