/* 全站公共:重置、版心、页头、页脚。颜色和尺寸一律引用 tokens.css 的变量。
   页头页脚的 HTML 在 partials/,改完跑 node globalconnect/tools/sync.js 写进每一页。 */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  zoom: var(--fit, 1); /* 窗口比设计宽度窄时整页等比缩小,数值由 js/fit.js 算 */
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
a { color: inherit; }

.wrap  { width: min(var(--content), 100% - 2 * var(--gutter)); margin-inline: auto; }
.frame { width: min(var(--frame), 100% - 2 * var(--gutter)); margin-inline: auto; }
.accent { color: var(--accent); }
.keep-case { text-transform: none; } /* 全大写的小标题里保住 GCSx 的小写 x(品牌写法) */

.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;
}

/* ---------- 页头 ----------
   全站固定在视口顶端;往下滚就收成一条紧凑的黑底条(js/site.js 加 is-stuck)。
   在页面顶端时和原站一样:有大图的页面(body.has-hero)透明、压在图上、底下一条白线;
   没有大图的页面(文章页)是一条黑底,顶端不留白边(黑条直接贴住页面顶端),
   body 让出的高度相应减掉那条白边,正文与黑条的间距保持不变。 */
html { scroll-padding-top: calc(var(--header-stuck-h) + 16px); } /* 键盘聚焦、锚点跳转不钻到页头底下 */
body:not(.has-hero) { padding-top: calc(var(--header-h) - var(--top-gap)); }

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  color: var(--paper);
  background: var(--ink);
  border-bottom: 6px solid var(--paper);
  transition: background-color 0.3s;
}
.has-hero .site-header { background: transparent; border: 0; }

.site-header__inner {
  height: 94px;
  padding-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  transition: height 0.3s, padding 0.3s, border-color 0.3s;
}
.has-hero .site-header__inner {
  height: 96px;
  padding-bottom: 0;
  border-bottom: 1px solid rgb(255 255 255 / 0.28);
}

/* 滚动后:深蓝黑半透明 + 毛玻璃,收成一条矮条,去掉白边和白线 */
.site-header.is-stuck {
  background: rgb(var(--night) / 0.78);
  border-width: 0;
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
}
.site-header.is-stuck .site-header__inner {
  height: var(--header-stuck-h);
  padding-bottom: 0;
  border-bottom-color: transparent;
}

.site-header__logo { flex: none; }
.site-header__logo img { width: 120px; transition: width 0.3s; }
.is-stuck .site-header__logo img { width: 84px; }

.site-nav { position: relative; display: flex; gap: 44px; }
.site-nav a {
  position: relative;
  font-size: 16px;
  line-height: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--paper);
}

/* 当前页下面一条青色细线。没有脚本时每个链接各画各的;
   js/site.js 接管后换成一条 .site-nav__bar,在当前页和悬停项之间滑动 */
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s;
}
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }
@media (hover: hover) {
  .site-nav a:hover { color: var(--paper); }
  .site-nav a:hover::after { transform: scaleX(1); }
}
.site-nav.has-bar a::after { display: none; }
.site-nav__bar {
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
}
.site-nav.is-ready .site-nav__bar {
  transition: transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1), width 0.35s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.2s;
}

/* ---------- Events 的二级菜单(2026-09-22) ----------
   Events 本身仍然是链接(点了去 Overview),旁边的小箭头才是开合菜单的按钮 ——
   触屏上没有 hover,靠这个按钮才点得开。鼠标移上来 / 键盘 Tab 进来也会自动展开。
   当前页在菜单里时(Upcoming),父项 Events 靠 :has() 一起亮着。 */
.site-nav__group { position: relative; display: flex; align-items: center; gap: 4px; }
.site-nav__group > a::after { right: -15px; } /* 下划线连箭头一起划过去 */
.site-nav__group:has(.site-nav__menu a[aria-current="page"]) > a::after { transform: scaleX(1); }

.site-nav__caret {
  display: flex;
  align-items: center;
  padding: 4px 2px;
  border: 0;
  background: none;
  color: inherit;
  cursor: pointer;
  border-radius: 4px;
}
.site-nav__caret svg { transition: transform 0.25s; }
.site-nav__group.is-open .site-nav__caret svg { transform: rotate(180deg); }

.site-nav__menu {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 3;
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  min-width: 156px;
  padding: 8px;
  border-radius: 14px;
  border: 1px solid rgb(255 255 255 / 0.14);
  background: rgb(var(--night) / 0.95);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 20px 44px rgb(0 0 0 / 0.42);
  opacity: 0;
  visibility: hidden;
  transform: translate(var(--menu-x, -50%), 6px);
  transition: opacity 0.2s, transform 0.2s, visibility 0.2s;
}
/* 导航最后一项的菜单:居中展开会伸出视口右边(390 宽实测 8px、375 宽 15px),改成贴着 group 右边展开 */
/* 不能用 :last-child —— js/site.js 会往 nav 末尾插一个 <span class="site-nav__bar">(滑动下划线),
   最后那个 group 因此永远不是 last-child(2026-09-29 实测) */
.site-nav__group--end .site-nav__menu { left: auto; right: 0; --menu-x: 0; }

/* 鼠标从 Events 挪到菜单的路上要有东西接着,否则中间那段空白一过菜单就收了 */
.site-nav__menu::before {
  content: "";
  position: absolute;
  inset: -16px 0 100% 0;
}
.site-nav__menu a {
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  color: rgb(255 255 255 / 0.82);
}
.site-nav__menu a::after { display: none; } /* 菜单项不画那条下划线 */
.site-nav__menu a[aria-current="page"] { color: var(--accent-bright); }
@media (hover: hover) {
  .site-nav__menu a:hover { background: rgb(255 255 255 / 0.1); color: var(--paper); }
}
.site-nav__menu a:focus-visible { background: rgb(255 255 255 / 0.1); color: var(--paper); }

/* 只认 is-open 这一个开关。别加 :focus-within —— 按 Esc 收起后焦点要回到小箭头上,
   而小箭头就在这个 group 里,那条规则会立刻把菜单重新撑开,Esc 等于没按(2026-09-22 测出来的)。
   收起时菜单是 visibility:hidden,里面的链接不参与 Tab;要用键盘进菜单,先用 Enter 按开小箭头。 */
.site-nav__group.is-open .site-nav__menu {
  opacity: 1;
  visibility: visible;
  transform: translate(var(--menu-x, -50%), 0);
}
@media (hover: hover) {
  .site-nav__group:hover .site-nav__menu {
    opacity: 1;
    visibility: visible;
    transform: translate(var(--menu-x, -50%), 0);
  }
}

/* ---------- 页脚(2026-09-22 重排) ----------
   原来是照 Wix 编辑器抓下来的一堆魔法 margin：菜单三项间距 73/50、地址行距 36.5px、
   社交图标 61、三栏首行各自用 40/39/38 凑“对齐”—— 字号一变(浏览器最小字号、缩放)就全散了。
   现在四栏共用下面三个间距变量，所有栏顶端对齐同一条线，每栏内部的节奏也一致。 */
.site-footer {
  --f-block-gap: 28px;  /* 栏标题 → 内容、栏内两块之间 */
  --f-line-gap: 12px;   /* 一块里两行之间(字段名 → 值) */
  background: var(--ink);
  color: var(--paper);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 296px minmax(0, 1.05fr) minmax(0, 0.72fr) minmax(0, 1.05fr);
  column-gap: 40px;
  align-items: start;
  padding-block: 88px 44px;
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 26px; }
.site-footer__logo { display: block; }
.site-footer__logo img { width: 175px; height: auto; }
/* 品牌简介:文案取自 site.json 的 summary 第一句(不另编) */
.footer-intro { margin: 0; font-size: 14px; line-height: 22px; max-width: 262px; color: rgb(255 255 255 / 0.7); }

.site-footer h2 { font-size: 20px; line-height: 24px; font-weight: 700; margin: 0; }

.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

/* 四栏共用同一套节奏。用 flex 的 gap,不用 margin —— margin 那版里
   后面那条 `margin: 0` 重置和它特异性相同、写在后面,把 Menu 和 Follow Us 的标题间距整个吃掉了。 */
.footer-col { display: flex; flex-direction: column; align-items: flex-start; gap: var(--f-block-gap); }
.footer-field { display: flex; flex-direction: column; gap: var(--f-line-gap); }
.footer-col :where(h2, p, ul, address) { margin: 0; }

.footer-label {
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgb(255 255 255 / 0.55);
}

.footer-address { font-style: normal; font-size: 16px; line-height: 26px; }
.footer-address span { display: block; }

.footer-email { display: inline-block; font-size: 16px; line-height: 26px; }
.footer-email:hover { text-decoration: underline; text-underline-offset: 3px; }

.footer-menu { list-style: none; padding: 0; display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
.footer-menu li { line-height: 20px; }
.footer-menu a { font-size: 16px; line-height: 20px; }
.footer-menu a:hover { text-decoration: underline; text-underline-offset: 4px; }

.footer-blurb { font-size: 14px; line-height: 22px; max-width: 300px; color: rgb(255 255 255 / 0.78); }

.footer-social { display: flex; gap: 12px; }
.footer-social img { width: 34px; height: 34px; display: block; }
.footer-social a { display: block; border-radius: 6px; transition: opacity 0.2s, transform 0.2s; }
.footer-social a:hover { opacity: 0.85; transform: translateY(-2px); }

/* 最底下一行：版权 + 隐私条款(原来在 Follow Us 栏里，和社交图标挤在一起) */
.footer-base {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 32px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid rgb(255 255 255 / 0.14);
}
.footer-base p { margin: 0; font-size: 13px; line-height: 20px; color: rgb(255 255 255 / 0.55); }
.footer-legal a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
.footer-legal a:hover { color: var(--accent); }

/* ---------- 页脚订阅带 + 弹窗 ---------- */
.footer-subscribe {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 40px;
  margin-top: 64px;
  padding: 30px 36px;
  border-radius: 18px;
  background: rgb(255 255 255 / 0.06);
}
.footer-subscribe__text h2 { font-size: 22px; line-height: 26px; margin: 0; }
.footer-subscribe__text p { font-size: 15px; line-height: 22px; margin: 8px 0 0; color: rgb(255 255 255 / 0.72); max-width: 460px; }
.footer-subscribe__btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border: 0; border-radius: 999px;
  background: var(--accent); color: var(--ink);
  font: inherit; font-size: 16px; font-weight: 700; cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.footer-subscribe__btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28); color: var(--ink); }
.footer-subscribe__btn svg { flex: none; }

dialog.subscribe {
  width: min(520px, calc(100vw - 32px));
  border: 0; border-radius: 16px; padding: 0;
  background: var(--paper); color: var(--ink);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}
/* 登记表的身份下拉 + 细分栏(tools/sync.js 按 functions/lib/roles.js 生成;两张表共用):
   每一组占满一行,里面沿用表单自己的两栏 / 一栏和间距;藏起来的组 js/site.js 同时 disabled,不提交也不校验 */
.role-group { grid-column: 1 / -1; display: grid; grid-template-columns: inherit; gap: inherit; }
.role-group[hidden] { display: none; }
.role-group [data-platform-other][hidden] { display: none; }
/* 平台选了 Other:平台 | Your platform 占一行,主页链接挪到下一行整行(不支持 :has 的浏览器就是半宽,不影响填写) */
.role-group:has([data-platform-other]:not([hidden])) .field--link { grid-column: 1 / -1; }
/* 下拉的小箭头:两块渐变拼成,跟着 --ink 走;没选的时候(required 的空值 = :invalid)字是灰的 */
form .role-pick select, form .role-group select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%);
  background-position: calc(100% - 17px) 50%, calc(100% - 12px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat;
}
.role-pick select:invalid, .role-group select:invalid { color: var(--map-muted); }
.role-pick option, .role-group option { color: var(--ink); }
dialog.subscribe::backdrop { background: rgba(11, 18, 24, 0.55); }
.subscribe__form { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; padding: 40px; }
.subscribe__close {
  position: absolute; top: 12px; right: 14px;
  width: 36px; height: 36px; border: 0; border-radius: 999px;
  background: transparent; color: var(--map-muted);
  font-size: 26px; line-height: 1; cursor: pointer;
}
.subscribe__close:hover { background: rgba(0, 0, 0, 0.06); color: var(--ink); }
.subscribe__title { grid-column: 1 / -1; margin: 0; font-size: 26px; line-height: 30px; }
.subscribe__lead { grid-column: 1 / -1; margin: -6px 0 4px; font-size: 15px; line-height: 22px; color: var(--map-muted); }
.subscribe__form .field { display: flex; flex-direction: column; gap: 7px; font-size: 14px; }
.subscribe__form .field--wide { grid-column: 1 / -1; }
.subscribe__form .field span { font-weight: 600; }
.subscribe__form input, .subscribe__form textarea, .subscribe__form select {
  font: inherit; font-size: 16px; padding: 11px 13px;
  border: 1px solid #d9d5cc; border-radius: 8px;
  background: #fff; color: var(--ink); width: 100%;
}
.subscribe__form textarea { resize: vertical; min-height: 44px; }
.subscribe__form select { appearance: none; padding-right: 34px; cursor: pointer; }
.subscribe__form input:focus, .subscribe__form textarea:focus, .subscribe__form select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.subscribe .loop-form__consent { grid-column: 1 / -1; margin: 0; font-size: 13px; line-height: 20px; color: var(--map-muted); }
.subscribe .loop-form__consent a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.subscribe .loop-form__submit {
  grid-column: 1 / -1; padding: 14px; border: 0; border-radius: 999px;
  background: var(--ink); color: var(--paper); font: inherit; font-size: 16px; font-weight: 700; cursor: pointer;
}
.subscribe .loop-form__submit:hover { background: var(--accent); color: var(--ink); }
.subscribe .loop-form__submit[disabled] { opacity: 0.55; cursor: progress; }
.subscribe .loop-form__status { grid-column: 1 / -1; margin: 0; font-size: 15px; line-height: 22px; color: var(--map-ink); }
.subscribe .loop-form__status[hidden] { display: none; }
.subscribe .loop-form__status.is-error { color: var(--danger); }

/* ---------- 窄屏 ---------- */
@media (max-width: 767px) {
  /* 三列:两列时 Follow Us 会单独掉到第二行、右半边空着 */
  .site-footer__inner { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 28px; row-gap: 40px; padding-block: 64px 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-subscribe { flex-direction: column; align-items: flex-start; margin-top: 44px; padding: 26px 24px; }
  .footer-base { margin-top: 32px; }
  .subscribe__form { grid-template-columns: 1fr; padding: 32px 22px; }
}

@media (max-width: 640px) {
  .site-header__logo img { width: 88px; }
  .is-stuck .site-header__logo img { width: 72px; }
  /* 390 宽(常见手机)导航正好排满一行,多出来的小箭头会把 News Centre 挤成两行 —— 间距收一收(2026-09-22 量的) */
  .site-nav { gap: 14px; }
  .site-nav a { font-size: 15px; }
  .site-nav__group { gap: 1px; }
  .site-nav__caret { padding: 4px 0; }
  .site-nav__group > a::after { right: -13px; }
  /* 10-05 Media Coverage 单独成一项后四项排不下:手机上不放 Home(点 logo 就是回首页),两个字的项允许折成两行 */
  /* 手机上页头放不下五项:Home 靠 logo、About 靠页脚菜单(2026-10-07 加 About 时 390 宽把 Media Coverage 挤出屏外) */
  .site-nav > a[data-nav="home"], .site-nav > a[data-nav="about"] { display: none; }
  /* 单列:一栏一屏太长,节奏和 logo 一起收一档 */
  .site-footer { --f-block-gap: 22px; }
  .site-footer__inner { grid-template-columns: 1fr; row-gap: 34px; }
  .site-footer__logo img { width: 150px; }
  .footer-brand { gap: 20px; }
  .footer-base { flex-direction: column; }
}