/* =========================================================
   安博地址主站 · 共享样式 /assets/site.css
   夜赛墨蓝底色 + 荧光青导引 + 赛事橙入口 + 信号黄状态点
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:#071426;
  --ink-2:#0D2038;
  --ink-3:#0A1A2E;
  --cyan:#35F0D0;
  --orange:#FF6A2A;
  --yellow:#FFD23F;
  --mist:#EAF2FF;
  --slate:#8FA6C4;
  --deep:#031019;
  --teal-deep:#0F4A4A;
  --coral:#FF4D5E;

  --bg-page:var(--ink);
  --surface:var(--ink-2);
  --line:rgba(143,166,196,.22);
  --line-soft:rgba(143,166,196,.12);
  --line-cyan:rgba(53,240,208,.38);

  --font-display:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","Cascadia Mono","Roboto Mono",Menlo,Consolas,monospace;

  --radius-xl:32px;
  --radius-lg:26px;
  --radius-md:20px;
  --radius-sm:14px;
  --pill:999px;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --header-h:78px;
  --ease:cubic-bezier(.22,.68,0,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 20px);
}
body{
  margin:0;
  background:
    radial-gradient(120% 70% at 85% -10%,rgba(53,240,208,.10),transparent 58%),
    radial-gradient(90% 60% at 0% 0%,rgba(255,106,42,.07),transparent 55%),
    var(--bg-page);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;height:auto;}
a{color:var(--cyan);text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--cyan);color:#04121f;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.14;
  text-wrap:balance;
}
h1{font-size:clamp(38px,6vw,72px);}
h2{font-size:clamp(26px,3.6vw,40px);}
h3{font-size:clamp(19px,2vw,24px);letter-spacing:-.01em;}
h4{font-size:17px;letter-spacing:0;}
p{max-width:70ch;}
strong,b{color:var(--mist);font-weight:700;}

/* ---------- 3. 焦点与可访问性 ---------- */
:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:8px;
}
.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;
}
.skip-link{
  position:fixed;top:10px;left:var(--gutter);z-index:200;
  padding:12px 22px;border-radius:var(--pill);
  background:var(--cyan);color:#04121f;
  font-size:14px;font-weight:700;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0);outline:none;}

/* ---------- 4. 头部：悬浮胶囊浮岛 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px var(--gutter) 0;
  transition:padding .3s var(--ease);
}
.site-header[data-scrolled="true"]{padding-top:6px;}

.header-shell{
  position:relative;
  display:flex;align-items:center;
  gap:clamp(8px,1.4vw,18px);
  width:100%;max-width:var(--shell);
  margin-inline:auto;
  padding:8px 10px 8px 14px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(13,32,56,.74);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 22px 48px -34px rgba(0,0,0,.95);
  transition:padding .3s var(--ease),background .3s var(--ease),
             border-color .3s var(--ease),box-shadow .3s var(--ease),border-radius .3s var(--ease);
}
.site-header[data-scrolled="true"] .header-shell{
  padding:4px 8px 4px 12px;
  background:rgba(7,20,38,.94);
  border-color:var(--line-cyan);
  box-shadow:0 24px 46px -30px rgba(0,0,0,.98),0 0 0 1px rgba(53,240,208,.06) inset;
}

.brand-island{display:flex;align-items:center;flex:0 1 auto;min-width:0;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--mist);text-decoration:none;min-width:0;
}
.brand-mark{
  flex:none;width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--cyan),#0B8F88);
  box-shadow:0 0 0 1px rgba(53,240,208,.4) inset,0 8px 20px -10px rgba(53,240,208,.85);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.brand-mark i{
  width:10px;height:10px;border-radius:50%;
  background:var(--ink);
  box-shadow:0 0 0 3px rgba(7,20,38,.5);
}
.brand:hover .brand-mark{transform:rotate(-8deg) scale(1.04);}
.brand-text{display:grid;gap:1px;min-width:0;}
.brand-name{
  font-family:var(--font-display);
  font-size:16px;font-weight:800;letter-spacing:-.01em;line-height:1.15;
  color:var(--mist);white-space:nowrap;
}
.brand-desc{
  font-family:var(--font-mono);
  font-size:10.5px;line-height:1.2;letter-spacing:.06em;
  color:var(--slate);white-space:nowrap;
}

.nav-capsule{
  flex:1 1 auto;min-width:0;
  display:flex;justify-content:center;
  overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;
}
.nav-capsule::-webkit-scrollbar{display:none;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-item{flex:none;}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:var(--pill);
  font-size:14.5px;font-weight:500;line-height:1.2;
  color:var(--slate);white-space:nowrap;
  border:1px solid transparent;
  transition:color .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{
  color:var(--mist);
  background:rgba(53,240,208,.12);
  border-color:rgba(53,240,208,.24);
}
.nav-link[aria-current="page"]{
  color:#04121f;font-weight:700;
  background:var(--cyan);border-color:var(--cyan);
  box-shadow:0 10px 22px -14px rgba(53,240,208,.95);
}

.header-actions{display:flex;align-items:center;gap:8px;flex:none;margin-left:auto;}

/* ---------- 5. 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .2s var(--ease),background .22s var(--ease),
             border-color .22s var(--ease),color .22s var(--ease),box-shadow .28s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn-accent{
  background:var(--orange);color:#150600;
  box-shadow:0 14px 30px -18px rgba(255,106,42,.95);
}
.btn-accent:hover{background:#FF8149;box-shadow:0 18px 34px -16px rgba(255,106,42,1);}
.btn-cyan{
  background:var(--cyan);color:#04121f;
  box-shadow:0 14px 30px -18px rgba(53,240,208,.9);
}
.btn-cyan:hover{background:#5CF6DC;}
.btn-ghost{
  background:rgba(53,240,208,.06);color:var(--mist);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--line-cyan);color:var(--cyan);background:rgba(53,240,208,.12);}
.util-link{font-family:var(--font-mono);font-size:12.5px;padding:8px 15px;letter-spacing:.04em;}

/* ---------- 6. 移动导航按钮与开关状态 ---------- */
.nav-toggle{
  display:none;align-items:center;justify-content:center;gap:8px;
  min-width:46px;height:46px;padding:0 14px;
  border-radius:var(--pill);
  border:1px solid rgba(53,240,208,.35);
  background:rgba(53,240,208,.10);
  color:var(--mist);font-size:13.5px;font-weight:600;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:rgba(53,240,208,.2);border-color:var(--cyan);}
.nav-toggle-bars{display:grid;gap:5px;width:16px;}
.nav-toggle-bars span{
  display:block;height:2px;border-radius:2px;background:var(--cyan);
  transition:transform .28s var(--ease),opacity .2s var(--ease);
}
.nav-toggle-label{white-space:nowrap;}

.site-header[data-open] .header-shell{
  background:rgba(7,20,38,.97);
  border-color:rgba(53,240,208,.5);
}
.site-header[data-open] .nav-toggle{background:rgba(53,240,208,.22);border-color:var(--cyan);}
.site-header[data-open] .nav-toggle-bars span:first-child{transform:translateY(3.5px) rotate(45deg);}
.site-header[data-open] .nav-toggle-bars span:last-child{transform:translateY(-3.5px) rotate(-45deg);}

/* ---------- 7. 阅读进度线 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--yellow) 55%,var(--orange));
  z-index:120;pointer-events:none;
}

/* ---------- 8. 页脚：深青黑分层 ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,110px);
  background:
    radial-gradient(100% 90% at 12% 0%,rgba(15,74,74,.55),transparent 62%),
    var(--deep);
  border-top:1px solid rgba(53,240,208,.16);
  color:var(--mist);
}
.footer-shell{
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding:clamp(40px,6vw,72px) var(--gutter) clamp(24px,3vw,36px);
}
.footer-top{
  display:grid;
  grid-template-columns:minmax(230px,1.05fr) minmax(0,1.55fr) minmax(230px,.95fr);
  gap:clamp(24px,4vw,54px);
  align-items:start;
}
.footer-brand{display:grid;gap:10px;align-content:start;}
.footer-brand-name{
  font-family:var(--font-display);
  font-size:clamp(20px,2.2vw,24px);font-weight:800;letter-spacing:-.02em;
  color:var(--mist);
}
.footer-brand-tag{
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.12em;color:var(--cyan);
  text-transform:lowercase;
}
.footer-summary{max-width:34ch;font-size:14.5px;line-height:1.8;color:var(--slate);}

.footer-groups{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,2.4vw,28px);
}
.footer-group{display:grid;gap:10px;align-content:start;}
.footer-group-title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:11.5px;font-weight:600;letter-spacing:.16em;
  color:var(--yellow);
}
.footer-group-title::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--cyan);flex:none;
}
.footer-links{display:grid;gap:8px;}
.footer-link{
  display:inline-block;
  font-size:15px;color:rgba(234,242,255,.82);
  text-decoration:none;line-height:1.6;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-link:hover,.footer-link:focus-visible{
  color:var(--cyan);transform:translateX(3px);
}

.footer-contact{
  display:grid;gap:12px;align-content:start;
  padding:20px 22px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(53,240,208,.2);
  background:rgba(15,74,74,.34);
  box-shadow:0 26px 50px -40px rgba(0,0,0,1) inset;
}
.footer-contact-item{display:grid;gap:1px;}
.footer-contact-label{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.14em;color:var(--slate);
}
.footer-contact-value{
  font-size:14.5px;line-height:1.6;color:var(--mist);
  word-break:break-word;
}
.footer-bottom{
  margin-top:clamp(28px,4vw,44px);
  padding-top:20px;
  border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;
  justify-content:space-between;
}
.footer-legal,.footer-meta{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.05em;color:var(--slate);
}
.footer-caps{display:flex;flex-wrap:wrap;gap:8px;}
.footer-capsule{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--pill);
  border:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.05em;color:var(--slate);
  text-decoration:none;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.footer-capsule:hover,.footer-capsule:focus-visible{
  color:var(--cyan);border-color:var(--line-cyan);background:rgba(53,240,208,.1);
}

/* ---------- 9. 版式容器 ---------- */
.container{
  width:100%;max-width:var(--shell);margin-inline:auto;
  padding-inline:var(--gutter);
}
.section{padding-block:clamp(46px,7vw,96px);}
.section--tight{padding-block:clamp(28px,4vw,52px);}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;color:var(--cyan);
}
.eyebrow::before{
  content:"";width:22px;height:1px;background:var(--cyan);opacity:.7;
}
.section-title{
  font-family:var(--font-display);
  font-size:clamp(26px,3.6vw,40px);font-weight:800;letter-spacing:-.02em;
  line-height:1.14;color:var(--mist);margin-top:10px;
}
.lede{
  max-width:62ch;margin-top:12px;
  font-size:clamp(15px,1.3vw,17.5px);line-height:1.8;color:var(--slate);
}
.divider{
  height:1px;border:0;margin-block:clamp(24px,4vw,44px);
  background:linear-gradient(90deg,var(--line-cyan),var(--line-soft) 45%,transparent);
}

/* ---------- 10. 栅格 ---------- */
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--grid-gap,clamp(16px,2.4vw,28px));
}
.grid-12 > *{min-width:0;}
.span-3{grid-column:span 3;}
.span-4{grid-column:span 4;}
.span-5{grid-column:span 5;}
.span-6{grid-column:span 6;}
.span-7{grid-column:span 7;}
.span-8{grid-column:span 8;}
.span-9{grid-column:span 9;}
.span-12{grid-column:span 12;}

/* ---------- 11. 面板与标签 ---------- */
.panel{
  padding:clamp(18px,3vw,30px);
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--ink-2);
}
.panel--teal{
  background:linear-gradient(160deg,rgba(15,74,74,.72),rgba(13,32,56,.92));
  border-color:rgba(53,240,208,.22);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--pill);
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;line-height:1.6;
  border:1px solid var(--line);color:var(--slate);
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(53,240,208,.4);background:rgba(53,240,208,.1);}
.tag--orange{color:var(--orange);border-color:rgba(255,106,42,.4);background:rgba(255,106,42,.1);}
.tag--yellow{color:var(--yellow);border-color:rgba(255,210,63,.4);background:rgba(255,210,63,.1);}

.index-num{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.14em;color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.stat-number{
  font-family:var(--font-mono);
  font-size:clamp(28px,4vw,46px);line-height:1.05;
  color:var(--cyan);font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}

.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--pill);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;
  color:var(--slate);border:1px solid var(--line);
  background:rgba(13,32,56,.7);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{color:var(--mist);border-color:var(--line-cyan);}
.chip[aria-pressed="true"]{
  color:#04121f;background:var(--cyan);border-color:var(--cyan);font-weight:700;
}

/* ---------- 12. 面包屑 ---------- */
.breadcrumbs{margin-block:clamp(14px,2vw,22px) 0;}
.crumbs-list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--slate);
}
.crumbs-item{display:inline-flex;align-items:center;gap:8px;}
.crumbs-item + .crumbs-item::before{
  content:"/";color:rgba(143,166,196,.45);
}
.crumbs-link{color:var(--slate);text-decoration:none;}
.crumbs-link:hover,.crumbs-link:focus-visible{color:var(--cyan);}
.crumbs-item[aria-current="page"] .crumbs-link{color:var(--mist);}

/* ---------- 13. 图片容器基础 ---------- */
.media-frame{
  position:relative;isolation:isolate;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(150deg,var(--ink-2),var(--ink) 65%);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(120% 80% at 82% 0%,rgba(53,240,208,.16),transparent 62%),
    linear-gradient(180deg,transparent 55%,rgba(3,16,25,.55));
  mix-blend-mode:screen;
}
.media-frame img,
.media-frame video{
  width:100%;height:100%;object-fit:cover;display:block;
  border-radius:inherit;
}
.media-frame--wide{aspect-ratio:21/9;}
.media-frame--panorama{aspect-ratio:16/9;}
.media-frame--square{aspect-ratio:1/1;}
.media-frame--portrait{aspect-ratio:4/5;}
.media-frame--tall{aspect-ratio:3/4;}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.06em;color:var(--slate);
}

/* ---------- 14. 滚动显现协议 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .62s var(--ease),transform .62s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
  will-change:opacity,transform;
}
[data-reveal].is-revealed{opacity:1;transform:none;will-change:auto;}

/* ---------- 15. 响应式 ---------- */
@media (max-width:1180px){
  .util-link{display:none;}
}
@media (max-width:1120px){
  .nav-link{padding:8px 10px;font-size:13.5px;}
  .brand-desc{display:none;}
}
@media (max-width:1000px){
  .footer-top{
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  }
  .footer-contact{grid-column:1 / -1;}
  .span-3,.span-4,.span-5,.span-6{grid-column:span 6;}
  .span-7,.span-8,.span-9{grid-column:span 12;}
}
@media (max-width:960px){
  .site-header{padding-top:8px;}
  .header-shell{
    flex-wrap:wrap;
    padding:8px 8px 8px 12px;
    border-radius:26px;
  }
  .brand-island{flex:1 1 auto;}
  .brand-mark{width:32px;height:32px;border-radius:10px;}
  .brand-name{font-size:15px;}
  .cta-help{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-capsule{
    order:3;flex:0 0 100%;
    display:block;
    max-height:0;opacity:0;
    overflow:hidden;
    transition:max-height .4s var(--ease),opacity .26s var(--ease);
  }
  .site-header[data-open] .nav-capsule{
    max-height:min(70vh,520px);
    opacity:1;overflow-y:auto;
    -webkit-overflow-scrolling:touch;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;padding-top:8px;}
  .nav-item{width:100%;}
  .nav-link{
    display:block;width:100%;
    padding:13px 16px;border-radius:16px;
    font-size:16px;font-weight:600;
  }
  .nav-link[aria-current="page"]{border-radius:16px;}
}
@media (max-width:760px){
  .footer-groups{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:640px){
  :root{--header-h:70px;}
  .footer-top{grid-template-columns:minmax(0,1fr);}
  .footer-groups{grid-template-columns:minmax(0,1fr);}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-12{grid-column:span 12;}
  .footer-caps{width:100%;}
  .btn{padding:10px 16px;font-size:14px;}
}

/* ---------- 16. 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1 !important;transform:none !important;transition:none !important;}
  .scroll-progress{transition:none !important;}
}