/* ============================================================
   common.css — 公共组件（页头 / AS SEEN ON / CTA / 页脚）唯一样式源
   ------------------------------------------------------------
   配合 assets/components/*.html 与 assets/js/common.js 使用。
   改这里，全站所有页面的页头页脚同步生效。

   说明：
   · 所有选择器都限定在组件作用域内，不会污染各页正文样式。
   ·    覆盖 !important 是为了压过各页自有样式表（style.css /
     about-redesign.css），保证四个公共块在任何页面表现一致。
     ============================================================ */

/* 统一品牌字体：首页在 <head> 里引入了 Noto Sans SC，但 about 等页只声明
   了 font-family 却没真正加载，导致导航栏在首页/其余页渲染成不同字体。
   这里统一 @import，让所有页面（含 about）用的都是同一款字体。 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

/* ---------- 组件内通用按钮（不依赖页面自身的 .btn 定义） ---------- */
.site-header .btn,
.cta .btn,
.site-footer .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .2s ease, border-color .2s ease;
}

/* ---------- 固定页头占位高度 ---------- */
body { padding-top: 96px !important; }

/* ---------- 页头 ---------- */
.site-header,
.site-header *,
.site-footer,
.site-footer * {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI",
               "PingFang SC", "Microsoft YaHei", sans-serif !important;
}

/* 公共组件内所有链接与品牌标识默认无下划线：
   各页自有样式表有的带全局 a{text-decoration:none}（如 about），有的不带
   （如 product），不带时浏览器默认的 a 下划线会露出在页头/页脚。
   统一在此兜底，保证页头页脚在所有页面表现一致。 */
.site-header a,
.site-footer a {
  text-decoration: none !important;
}

.site-header {
  position: fixed !important;
  top: 18px !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 50 !important;
  width: min(calc(100% - 40px), 1296px) !important;
  margin: 0 auto !important;
  padding: 8px 10px 8px 22px !important;
  border: 1px solid rgba(11, 26, 46, .07) !important;
  border-radius: 18px !important;
  background: rgba(255, 255, 255, .93) !important;
  -webkit-backdrop-filter: saturate(180%) blur(18px) !important;
  backdrop-filter: saturate(180%) blur(18px) !important;
  box-shadow: 0 1px 2px rgba(11, 26, 46, .04), 0 18px 50px rgba(6, 43, 91, .1) !important;
}

.site-header .container { max-width: none; padding: 0; }

.header-inner {
  height: 60px;
  gap: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header .brand {
  display: flex !important;
  align-items: center !important;
  gap: 10px !important;
  flex: none !important;
  color: #0B1A2E !important;
  font-size: 22px !important;
  font-weight: 800 !important;
  letter-spacing: .3px !important;
}

.site-header .brand-logo { height: 30px !important; width: auto !important; display: block !important; }

.site-header .brand-mark {
  width: 30px !important;
  height: 30px !important;
  display: grid !important;
  place-items: center !important;
  background: #0B1A2E !important;
  color: #fcd535 !important;
  border: 1px solid #fcd535 !important;
  border-radius: 8px !important;
  font-size: 15px !important;
  font-weight: 400 !important;
}

.site-header .main-nav {
  display: flex !important;
  align-items: center !important;
  gap: 2px !important;
  margin-left: 4px !important;
  margin-right: auto !important;
  align-self: stretch !important;
}

/* logo 与导航之间加一道细分隔线，把品牌区与菜单区在视觉上分开 */
.site-header .main-nav::before {
  content: "" !important;
  flex: none !important;
  width: 1px !important;
  height: 22px !important;
  margin-right: 16px !important;
  background: rgba(11, 26, 46, .12) !important;
}

.site-header .nav-item { position: relative !important; display: flex !important; align-items: center !important; }

.site-header .nav-link {
  display: inline-flex !important;
  align-items: center !important;
  gap: 7px !important;
  padding: 9px 14px !important;
  color: #4A5B72 !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  letter-spacing: .1px !important;
  white-space: nowrap !important;
  border-radius: 10px !important;
  transition: color .18s ease, background-color .18s ease !important;
}

.site-header .nav-link:hover,
.site-header .nav-item:focus-within > .nav-link { color: #168aca !important; background: rgba(22, 138, 202, .07) !important; }

.site-header .nav-caret { color: #fcd535 !important; font-size: 14px !important; line-height: 1 !important; }

/* 悬停时补一段不可见桥接区，避免鼠标移到间隙菜单就收起 */
.site-header .nav-item::after { content: ""; position: absolute; left: -16px; right: -16px; top: 100%; height: 12px; }

.site-header .nav-dropdown {
  position: absolute !important;
  top: 100% !important;
  left: -14px !important;
  z-index: 60 !important;
  width: 218px !important;
  padding: 10px 14px !important;
  border: 1px solid rgba(29, 181, 254, .12) !important;
  border-radius: 0 0 18px 18px !important;
  background: #fff !important;
  box-shadow: 0 18px 42px rgba(6, 43, 91, .14) !important;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(0);
  transition: opacity .18s ease, visibility .18s ease;
}

.site-header .nav-item:hover .nav-dropdown,
.site-header .nav-item:focus-within .nav-dropdown {
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

.site-header .nav-dropdown-wide { width: 250px !important; }

.site-header .nav-dropdown a {
  display: block !important;
  padding: 9px 4px !important;
  color: #475569 !important;
  font-size: 14px !important;
  line-height: 1.4 !important;
  border-radius: 7px !important;
}

.site-header .nav-dropdown a:hover,
.site-header .nav-dropdown a:focus-visible { color: #168aca !important; background: #f4f9fd !important; outline: none; }

.site-header .header-actions { display: flex !important; gap: 10px !important; flex: none !important; }

/* 移动端汉堡按钮（桌面端隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  flex: none;
}
.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: #0B1A2E;
  transition: transform .25s ease, opacity .25s ease;
}
.site-header.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.site-header.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-header .header-actions .btn {
  height: 42px !important;
  padding: 0 20px !important;
  border-radius: 10px !important;
  font-size: 15px !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  white-space: nowrap !important;
}

.site-header .btn-ghost { background: transparent !important; color: #0B1A2E !important; border: 1px solid #E2E8F0 !important; }
.site-header .btn-gold  { background: #fcd535 !important; color: #0B1A2E !important; border: 1px solid transparent !important; }
.site-header .btn-gold:hover { background: #E7D6B0 !important; transform: translateY(-1px) !important; }

/* ---------- 页脚 ---------- */
.site-footer { background: #071322; color: #B9C5D6; padding: 56px 0 0; }

.site-footer .footer-top,
.site-footer .footer-risk,
.site-footer .footer-bottom {
  box-sizing: border-box;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

.site-footer .footer-top {
  padding: 0 64px 36px;
  display: grid;
  grid-template-columns: 1.6fr repeat(5, 1fr);
  gap: 32px;
}

.site-footer .footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 16px; }
.site-footer .footer-col a { display: block; color: #9FB0C4; font-size: 14px; padding: 5px 0; }
.site-footer .footer-col a:hover { color: #fcd535; }
.site-footer .footer-brand .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .3px;
  margin-bottom: 14px;
}

/* 页脚是深底，logo 与头部保持一致（藏青实心+金边+金字）；
   金边保证在深底上也能清晰可见，且头尾视觉统一 */
.site-footer .brand-mark {
  width: 30px !important;
  height: 30px !important;
  display: grid !important;
  place-items: center !important;
  background: #0B1A2E !important;
  color: #fcd535 !important;
  border: 1px solid #fcd535 !important;
  border-radius: 8px !important;
  font-size: 15px !important;
  font-weight: 400 !important;
}

.site-footer .footer-brand p { color: #9FB0C4; font-size: 14px; max-width: 280px; margin-top: 0; }

.site-footer .footer-regs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.site-footer .footer-regs span {
  color: #fcd535;
  font-size: 12px;
  border: 1px solid rgba(201, 169, 106, .4);
  border-radius: 6px;
  padding: 4px 10px;
}

.site-footer .footer-risk {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 22px 64px;
  color: #7E8FA6;
  font-size: 12.5px;
  line-height: 1.8;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

.site-footer .footer-risk .risk { color: #E0B96A; font-weight: 600; }

.site-footer .footer-bottom {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 22px 64px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #7E8FA6;
  font-size: 12.5px;
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, .08);
}

/* ---------- AS SEEN ON ---------- */
.as-seen { padding: 72px 0; background: #F8FAFC; }

.as-seen-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 28px;
  color: #64748B;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
}

.as-seen-label .line { width: 48px; height: 1px; background: #E2E8F0; }
.as-seen-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 48px; }
.media-logo { color: #94A3B8; font-size: 22px; font-weight: 800; }

/* ---------- CTA ---------- */
.cta { padding: 72px 0; color: #fff; text-align: center; background: linear-gradient(135deg, #0B1A2E 0%, #071322 100%); }
.cta h2 { margin-bottom: 14px; font-size: 32px; font-weight: 800; }
.cta p { margin-bottom: 26px; color: #C7D2E0; font-size: 16px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

.cta .btn { height: 48px; padding: 0 26px; font-size: 15px; }
.cta .btn-gold { background: #fcd535 !important; color: #0B1A2E !important; border: 1px solid transparent !important; }
.cta .btn-gold:hover { background: #E7D6B0 !important; transform: translateY(-1px) !important; }
.cta .btn-ghost { background: transparent !important; color: #fff !important; border: 1px solid rgba(255, 255, 255, .35) !important; }
.cta .btn-ghost:hover { background: rgba(255, 255, 255, .1) !important; border-color: rgba(255, 255, 255, .6) !important; }

/* 单按钮时隐藏备用按钮：.btn 的 inline-flex 会盖掉 [hidden] 的默认 display:none */
.cta-actions [hidden] { display: none !important; }

/* ---------- 公共块内的容器宽度 ----------
   只限定在 as-seen / cta 内，避免影响各页正文自己的 .container */
.as-seen .container,
.cta .container { box-sizing: border-box; width: 100%; max-width: 1440px; margin: 0 auto; padding: 0 64px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  body { padding-top: 92px !important; }
  .site-header { width: calc(100% - 24px); top: 12px; }
  .header-inner { height: auto !important; min-height: 56px; flex-wrap: wrap !important; }
  /* 汉堡按钮放在 Logo 与操作按钮之间，与第一行同行 */
  .nav-toggle { display: inline-flex !important; order: 1; margin-left: auto; }
  .header-actions { order: 2; }
  /* 导航默认收起，点击汉堡后整行展开 */
  .site-header .main-nav {
    order: 3;
    width: 100%;
    margin: 0 !important;
    display: none !important;
    flex-direction: column;
    align-items: stretch;
    gap: 0 !important;
    padding-top: 6px;
    border-top: 1px solid rgba(11, 26, 46, .08);
    margin-top: 6px !important;
  }
  .site-header.is-open {
    background: #fff !important;
    -webkit-backdrop-filter: none !important;
    backdrop-filter: none !important;
  }
  .site-header.is-open .main-nav { display: flex !important; }
  .site-header .main-nav::before { display: none !important; }
  .site-header .nav-item {
    flex: none !important;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid rgba(11, 26, 46, .06);
  }
  .site-header .nav-link {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding: 12px 4px !important;
    font-size: 14px !important;
  }
  .site-header .nav-caret { transition: transform .2s ease; }
  .site-header .nav-item:hover .nav-caret,
  .site-header .nav-item:focus-within .nav-caret,
  .site-header .nav-item.is-open .nav-caret { transform: rotate(180deg); }
  .site-header .nav-item::after { display: none !important; }
  /* 手风琴下拉：static inline 展开，:focus-within / .is-open 触发 */
  .site-header .nav-dropdown {
    position: static !important;
    width: auto !important;
    max-height: 0 !important;
    padding: 0 14px !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    overflow: hidden !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: none !important;
    transition: max-height .25s ease, padding .25s ease !important;
  }
  .site-header .nav-item:focus-within .nav-dropdown,
  .site-header .nav-item:hover .nav-dropdown,
  .site-header .nav-item.is-open .nav-dropdown {
    max-height: 600px !important;
    padding: 6px 14px 12px !important;
  }
  .site-header .nav-dropdown a {
    padding: 7px 4px !important;
    font-size: 13px !important;
  }
  .site-header .nav-dropdown-wide { width: auto !important; }
  .site-footer .footer-top { grid-template-columns: repeat(3, 1fr); padding-left: 32px; padding-right: 32px; }
  .site-footer .footer-risk,
  .site-footer .footer-bottom { padding-left: 32px; padding-right: 32px; }
  .as-seen .container,
  .cta .container { padding-left: 32px; padding-right: 32px; }
}

@media (max-width: 640px) {
  body { padding-top: 86px !important; }
  .site-header { padding: 5px 8px !important; border-radius: 16px !important; }
  .site-header .brand { font-size: 18px !important; }
  .site-header .brand-logo { height: 26px !important; }
  .site-header .header-inner { gap: 8px !important; }
  .site-header .header-actions { gap: 6px !important; }
  .site-header .header-actions .btn { height: 34px !important; padding: 0 10px !important; font-size: 11.5px !important; border-radius: 9px !important; }
  .site-header .nav-link { padding: 10px 4px !important; font-size: 13.5px !important; }
  .cta { padding: 44px 0; }
  .as-seen { padding: 44px 0; }
  .site-footer .footer-top { grid-template-columns: 1fr; padding-left: 20px; padding-right: 20px; }
  .site-footer .footer-risk,
  .site-footer .footer-bottom { padding-left: 20px; padding-right: 20px; }
  .site-footer .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
  .as-seen .container,
  .cta .container { padding-left: 20px; padding-right: 20px; }
  .as-seen-row { gap: 28px; }
  .cta h2 { font-size: 26px; }
}

/* 超小屏（≤420px）：Login/Sign Up 再缩小，与 Logo / 汉堡按钮保持同一行 */
@media (max-width: 420px) {
  body { padding-top: 84px !important; }
  .site-header { padding: 4px 6px !important; }
  .site-header .brand { font-size: 17px !important; }
  .site-header .brand-logo { height: 24px !important; }
  .site-header .header-inner { gap: 6px !important; }
  .site-header .header-actions { gap: 5px !important; }
  .site-header .header-actions .btn { height: 34px !important; padding: 0 8px !important; font-size: 11px !important; }
  .site-header .nav-link { padding: 10px 4px !important; font-size: 13px !important; }
}

/* 专业金 #F0B90B 用于主标题与 hero 大字（其余金色点缀保持 #fcd535） */
.hero h1, .hero-title, .section-title, .cta h2, .h2,
.product-body .hero-title, .product-body .section-title, .product-body .cta h2,
.platform-body .hero-title, .platform-body .section-title,
.doc-page h2 { color: #F0B90B !important; }

/* ---------- MSFX logo ---------- */
.brand .brand-logo{height:30px;width:auto;display:block}
.footer-brand .brand-logo{height:30px}
@media (max-width:900px){.brand .brand-logo{height:26px}}

