/* =========================================================
   悦盈体育 · 共享样式 /assets/site.css
   01 设计令牌 · 02 基础重置 · 03 排版 · 04 布局
   05 基础组件 · 06 页头 · 07 页脚 · 08 响应式与无障碍
   ========================================================= */

/* ---------- 01 设计令牌 ---------- */
:root{
  --c-deep:#071A2F;
  --c-night:#0D2A47;
  --c-steel:#123B5E;
  --c-blue:#2FA8FF;
  --c-green:#39FF9A;
  --c-amber:#FFC857;
  --c-ice:#A9D6FF;
  --c-white:#FFFFFF;
  --c-graphite:#1C334D;
  --c-cyan:#00E5D0;
  --c-alert:#FF5C6C;

  --line:rgba(169,214,255,.18);
  --line-soft:rgba(169,214,255,.10);
  --line-hot:rgba(47,168,255,.50);
  --glass:rgba(18,59,94,.55);
  --glass-deep:rgba(13,42,71,.82);

  --rail-w:88px;
  --rail-gap:34px;
  --maxw:1180px;

  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;

  --shadow-1:0 12px 34px rgba(2,10,20,.45);
  --shadow-2:0 24px 70px rgba(2,10,20,.55);
  --ease:cubic-bezier(.22,.61,.36,1);

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"IBM Plex Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
}

/* ---------- 02 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100%;
  background:var(--c-deep);
  color:var(--c-ice);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.012em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(920px 560px at 86% -8%, rgba(47,168,255,.22), transparent 62%),
    radial-gradient(760px 520px at -6% 14%, rgba(57,255,154,.10), transparent 60%),
    radial-gradient(820px 620px at 62% 112%, rgba(255,200,87,.07), transparent 66%),
    linear-gradient(180deg,#071A2F 0%,#061627 52%,#071A2F 100%);
}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
ul,ol{list-style:none;margin:0;padding:0}
strong{color:var(--c-white);font-weight:700}
::selection{background:rgba(57,255,154,.30);color:#fff}
:focus-visible{outline:2px solid var(--c-green);outline-offset:3px;border-radius:6px}
.sr-only{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 03 排版 ---------- */
h1,h2,h3,h4{color:var(--c-white);font-weight:800;line-height:1.16;letter-spacing:.005em}
h1{font-size:clamp(34px,5.6vw,68px);line-height:1.06}
h2{font-size:clamp(26px,3.4vw,42px)}
h3{font-size:clamp(19px,2vw,24px);font-weight:700;line-height:1.32}
h4{font-size:17px;font-weight:700;line-height:1.4}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--c-blue);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-green)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- 04 布局 ---------- */
#main-content{
  display:block;
  padding-top:clamp(88px,13vw,116px);
  scroll-margin-top:96px;
  outline:none;
}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:20px}
.section{padding-block:clamp(44px,6vw,92px)}
.section--tight{padding-block:clamp(26px,4vw,54px)}
.grid{display:grid;gap:clamp(14px,2vw,22px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.divider{
  height:1px;border:0;margin:clamp(24px,4vw,48px) 0;
  background:linear-gradient(90deg,transparent,var(--line-hot),transparent);
}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(20px,3vw,34px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-mono);font-size:12px;font-weight:600;
  letter-spacing:.22em;text-transform:uppercase;color:var(--c-green);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;display:inline-block}
.section-title{font-size:clamp(24px,3vw,38px)}
.lead{font-size:clamp(15px,1.4vw,17px);color:var(--c-ice);max-width:64ch}

.panel{
  position:relative;
  padding:clamp(18px,2.6vw,28px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(18,59,94,.55),rgba(13,42,71,.74));
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(10px) saturate(130%);
  -webkit-backdrop-filter:blur(10px) saturate(130%);
}
.panel--solid{background:var(--c-steel);border-color:var(--line-soft);backdrop-filter:none;-webkit-backdrop-filter:none}
.panel--flush{padding:0;overflow:hidden}
.card{
  position:relative;display:flex;flex-direction:column;gap:.55rem;
  padding:18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(7,26,47,.72);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:var(--line-hot);box-shadow:var(--shadow-1)}

/* ---------- 05 基础组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.72rem 1.15rem;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(169,214,255,.08);
  color:var(--c-white);
  font-size:14.5px;font-weight:700;letter-spacing:.02em;line-height:1.2;
  text-decoration:none;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.btn:hover{transform:translateY(-1px);background:rgba(47,168,255,.18);border-color:var(--line-hot);color:#fff}
.btn--primary{
  background:linear-gradient(120deg,var(--c-green),#6fffc0);
  border-color:transparent;color:#03251b;
  box-shadow:0 10px 26px rgba(57,255,154,.22);
}
.btn--primary:hover{background:linear-gradient(120deg,#4dffa8,#8affd0);color:#03251b;box-shadow:0 14px 34px rgba(57,255,154,.34)}
.btn--blue{background:linear-gradient(120deg,var(--c-blue),var(--c-cyan));border-color:transparent;color:#052033}
.btn--blue:hover{color:#052033}
.btn--ghost{background:transparent;border-color:var(--line)}

.tag{
  display:inline-flex;align-items:center;gap:.35em;
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(169,214,255,.08);
  color:var(--c-ice);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag--green{background:rgba(57,255,154,.16);border-color:rgba(57,255,154,.45);color:var(--c-green)}
.tag--amber{background:rgba(255,200,87,.16);border-color:rgba(255,200,87,.45);color:var(--c-amber)}
.tag--blue{background:rgba(47,168,255,.18);border-color:rgba(47,168,255,.45);color:var(--c-blue)}

.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(169,214,255,.06);
  color:var(--c-ice);font-size:13px;font-weight:600;cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.chip:hover{border-color:var(--line-hot);color:#fff}
.chip[aria-pressed="true"],.chip.is-active{
  background:linear-gradient(120deg,rgba(47,168,255,.92),rgba(0,229,208,.86));
  border-color:transparent;color:#042033;
}

.stat{display:flex;flex-direction:column;gap:2px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(24px,3vw,34px);line-height:1.1;
  color:var(--c-white);font-variant-numeric:tabular-nums;
}
.stat__value--green{color:var(--c-green)}
.stat__value--amber{color:var(--c-amber)}
.stat__label{font-size:12.5px;color:rgba(169,214,255,.72)}

.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);
  background:rgba(7,26,47,.62);
  -webkit-overflow-scrolling:touch;
}
.data-table{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px}
.data-table th,.data-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line-soft)}
.data-table th{
  background:var(--c-steel);color:var(--c-white);
  font-size:12.5px;font-weight:700;letter-spacing:.06em;white-space:nowrap;
}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table tbody tr:hover{background:rgba(47,168,255,.08)}
.data-table td.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600;color:var(--c-white)}

.breadcrumb{font-size:12.5px;color:rgba(169,214,255,.72)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:.5em}
.breadcrumb li{display:inline-flex;align-items:center;gap:.5em}
.breadcrumb li+li::before{content:"/";color:rgba(169,214,255,.35)}
.breadcrumb a{color:inherit}
.breadcrumb a:hover{color:var(--c-green)}
.breadcrumb [aria-current="page"]{color:var(--c-white)}

.media-frame{
  position:relative;display:block;width:100%;
  aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(18,59,94,.9),rgba(7,26,47,.92));
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,26,47,0) 42%,rgba(7,26,47,.72) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}

.reveal{opacity:1;transform:none}
html.js-motion .reveal{
  opacity:0;transform:translateY(16px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
html.js-motion .reveal.is-visible{opacity:1;transform:none}

/* ---------- 06 页头 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:2000;
  padding:.6rem 1.05rem;border-radius:var(--r-pill);
  background:var(--c-green);color:#04231a;
  font-size:14px;font-weight:700;text-decoration:none;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0);color:#04231a}

.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:900;
  display:flex;
  justify-content:center;
  padding:12px 14px;
  pointer-events:none;
}
.header-rail{
  position:relative;
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:10px;
  width:100%;
  max-width:640px;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  background:linear-gradient(180deg,rgba(18,59,94,.88),rgba(13,42,71,.84));
  box-shadow:var(--shadow-1);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
}

.scroll-progress{
  position:absolute;
  left:24px;right:24px;bottom:4px;
  height:2px;border-radius:2px;
  opacity:0;
  background:linear-gradient(90deg,var(--c-green),var(--c-blue));
  transform-origin:left center;
  transform:scaleX(var(--p,0));
  transition:opacity .25s var(--ease);
  pointer-events:none;
}

.brand{
  display:flex;align-items:center;gap:10px;
  padding:4px 8px 4px 4px;border-radius:var(--r-pill);
  color:var(--c-white);flex:0 0 auto;max-width:100%;
}
.brand:hover{color:var(--c-white)}
.brand__mark{
  flex:0 0 auto;display:grid;place-items:center;
  width:36px;height:36px;border-radius:12px;
  color:#04202f;
  background:linear-gradient(140deg,rgba(47,168,255,.95),rgba(0,229,208,.85));
  box-shadow:0 6px 18px rgba(47,168,255,.35);
}
.brand__mark svg{width:20px;height:20px}
.brand__text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand__name{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--c-white)}
.brand__tag{font-size:11px;font-weight:500;color:var(--c-ice);opacity:.78;white-space:nowrap}

.nav-toggle{
  display:inline-flex;align-items:center;gap:8px;
  margin-left:auto;
  padding:9px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(169,214,255,.08);
  color:var(--c-white);font-size:13px;font-weight:700;cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.nav-toggle:hover{background:rgba(47,168,255,.18);border-color:var(--line-hot)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;justify-content:center;gap:4px;width:16px}
.nav-toggle__bars i{
  display:block;height:2px;border-radius:2px;background:currentColor;
  transition:transform .25s var(--ease),opacity .2s var(--ease);
}
.site-header[data-open] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars i:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{
  position:absolute;
  top:calc(100% + 10px);
  left:0;right:0;
  display:flex;flex-direction:column;gap:8px;
  max-height:min(72vh,540px);
  overflow-y:auto;
  padding:14px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(13,42,71,.98),rgba(7,26,47,.98));
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s linear;
}
.site-header[data-open] .site-nav{opacity:1;visibility:visible;transform:translateY(0)}
.site-nav__list{display:flex;flex-direction:column;gap:4px}
.site-nav__item{display:block}
.site-nav__link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:var(--r-sm);
  color:var(--c-ice);font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.site-nav__link::after{content:"›";font-family:var(--font-mono);font-size:15px;color:var(--c-blue);opacity:.7}
.site-nav__link:hover{background:rgba(47,168,255,.14);color:var(--c-white)}
.site-nav__link[aria-current="page"]{
  background:linear-gradient(100deg,rgba(47,168,255,.24),rgba(57,255,154,.12));
  color:var(--c-white);
  box-shadow:inset 0 0 0 1px rgba(57,255,154,.38);
}
.site-nav__link[aria-current="page"]::after{color:var(--c-green);opacity:1}
.site-nav__text{display:block}
.nav-cta{width:100%}

/* ---------- 07 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,42,71,.42),rgba(6,20,36,.96));
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,255,154,.55),rgba(47,168,255,.55),transparent);
}
.footer-rail{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) 20px 0;
}
.footer-brand{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.footer-brand .brand{padding:0;align-items:center}
.footer-brand .brand__mark{width:34px;height:34px;border-radius:11px}
.footer-brand .brand__name{font-size:17px}
.footer-brand__summary{
  font-size:13.5px;line-height:1.8;color:rgba(169,214,255,.76);max-width:38ch;
}
.footer-brand__meta{display:flex;flex-wrap:wrap;gap:8px}

.footer-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(132px,1fr));gap:26px}
.footer-links__group{min-width:0}
.footer-links__title{
  position:relative;
  margin:0 0 14px;
  padding-left:14px;
  font-size:13.5px;font-weight:700;letter-spacing:.1em;
  color:var(--c-white);
}
.footer-links__title::before{
  content:"";position:absolute;left:0;top:.55em;
  width:6px;height:6px;border-radius:50%;
  background:var(--c-green);
  box-shadow:0 0 10px rgba(57,255,154,.9);
}
.footer-links__list{display:flex;flex-direction:column;gap:9px}
.footer-links__link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--c-ice);font-size:14px;opacity:.86;
  transition:color .18s var(--ease),opacity .18s var(--ease),transform .18s var(--ease);
}
.footer-links__link::before{
  content:"";display:block;width:12px;height:1px;background:currentColor;opacity:.5;
  transition:width .2s var(--ease);
}
.footer-links__link:hover{color:var(--c-green);opacity:1;transform:translateX(2px)}
.footer-links__link:hover::before{width:20px}

.footer-contact{
  padding:18px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(18,59,94,.42);
}
.footer-contact__title{
  margin:0 0 14px;
  font-size:13.5px;font-weight:700;letter-spacing:.1em;color:var(--c-white);
}
.footer-contact__list{display:flex;flex-direction:column;gap:12px}
.footer-contact__item{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.footer-contact__label{min-width:56px;font-size:12px;color:rgba(169,214,255,.62)}
.footer-contact__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:13.5px;color:var(--c-white);word-break:break-all;
}
.footer-contact__copy{
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(169,214,255,.06);
  color:var(--c-ice);font-size:12px;font-weight:600;cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.footer-contact__copy:hover{background:rgba(47,168,255,.18);border-color:var(--line-hot);color:#fff}
.footer-contact__copy[data-copied]{
  background:rgba(57,255,154,.2);border-color:rgba(57,255,154,.5);color:var(--c-green);
}
.footer-contact__note{
  margin-top:14px;font-size:12.5px;line-height:1.75;color:rgba(169,214,255,.62);
}

.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px 22px;
  width:100%;max-width:var(--maxw);
  margin:clamp(32px,5vw,56px) auto 0;
  padding:18px 20px 28px;
  border-top:1px solid var(--line-soft);
  font-size:12.5px;color:rgba(169,214,255,.66);
}
.footer-base__text{margin:0}
.footer-base__icp{
  font-family:var(--font-mono);letter-spacing:.02em;
  color:rgba(169,214,255,.7);
}

/* ---------- 08 响应式 ---------- */
@media (max-width:520px){
  .brand__tag{display:none}
  .header-rail{max-width:560px}
  .footer-contact__label{min-width:100%}
}
@media (min-width:768px){
  .header-rail{max-width:720px;padding:9px 12px}
  .site-nav{left:auto;right:0;width:min(420px,100%)}
  .footer-rail{padding-inline:28px}
  .footer-base{padding-inline:28px}
}
@media (min-width:900px){
  .footer-rail{
    grid-template-columns:minmax(210px,1fr) minmax(300px,1.45fr) minmax(250px,1.05fr);
    gap:38px;
    align-items:start;
  }
}
@media (min-width:1180px){
  body{padding-left:calc(var(--rail-w) + var(--rail-gap))}
  #main-content{padding-top:clamp(52px,6vw,84px);scroll-margin-top:40px}

  .site-header{
    inset:0 auto 0 0;
    width:calc(var(--rail-w) + var(--rail-gap));
    padding:18px 17px;
    align-items:center;
    justify-content:center;
  }
  .header-rail{
    flex-direction:column;
    align-items:center;
    justify-content:flex-start;
    gap:14px;
    width:var(--rail-w);
    max-width:none;
    max-height:calc(100vh - 36px);
    overflow-y:auto;
    padding:16px 8px;
    border-radius:26px;
    scrollbar-width:thin;
  }
  .site-header .brand{flex-direction:column;gap:8px;padding:0}
  .site-header .brand__text{display:none}
  .site-header .brand__mark{width:40px;height:40px;border-radius:14px}
  .nav-toggle{display:none}

  .scroll-progress{
    left:auto;right:5px;top:26px;bottom:26px;
    width:2px;height:auto;
    background:linear-gradient(180deg,var(--c-green),var(--c-blue));
    transform-origin:center top;
    transform:scaleY(var(--p,0));
  }

  .site-nav{
    position:static;
    width:100%;
    max-height:none;
    overflow:visible;
    padding:0;
    border:0;
    border-radius:0;
    background:transparent;
    box-shadow:none;
    opacity:1;
    visibility:visible;
    transform:none;
    gap:12px;
  }
  .site-nav__list{flex-direction:column;align-items:center;gap:6px}
  .site-nav__item{width:100%}
  .site-nav__link{
    display:block;
    width:100%;
    writing-mode:vertical-rl;
    text-align:center;
    padding-inline:10px;
    padding-block:0;
    font-size:12.5px;
    letter-spacing:.08em;
    line-height:1.1;
  }
  .site-nav__link::after{display:none}
  .nav-cta{
    width:100%;
    writing-mode:vertical-rl;
    padding-inline:10px;
    font-size:13px;
    letter-spacing:.1em;
    text-align:center;
  }
}

@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;
  }
  html.js-motion .reveal{opacity:1!important;transform:none!important}
}