/* ============================================================
   九游体育官网 · 共享站点样式 /assets/site.css
   语言：深空蓝战术板 · 切角面板 · 等宽数据 · 赛场夜光
   ============================================================ */

/* ---------- 令牌 ---------- */
:root{
  color-scheme: dark;
  --navy-950:#050F1C;
  --navy-900:#071A2F;
  --navy-800:#0B2745;
  --ink-900:#0A0F17;
  --ink:#F4F7FB;
  --mist:#F4F7FB;
  --steel:#94A3B8;
  --muted:#9FB2C8;
  --orange:#FF6B2C;
  --orange-soft:#FF8A3D;
  --orange-deep:#FF4D1F;
  --cy:#2FF3C4;
  --violet:#8B5CF6;
  --gold:#FFD166;
  --line:rgba(244,247,251,.12);
  --line-soft:rgba(244,247,251,.07);
  --line-strong:rgba(244,247,251,.22);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --gutter:clamp(16px,4vw,40px);
  --container:1240px;
  --radius:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-panel:0 26px 60px -40px rgba(2,8,18,.95);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100dvh;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--navy-900);
  background-image:
    radial-gradient(900px 520px at 82% -12%, rgba(47,243,196,.10), transparent 62%),
    radial-gradient(760px 460px at 6% -4%, rgba(139,92,246,.14), transparent 60%),
    linear-gradient(180deg,#071A2F 0%,#071A2F 46%,#050F1C 100%);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0}
button{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
[hidden]{display:none !important}
::selection{background:var(--orange);color:#1A0A02}
:focus-visible{outline:2px solid var(--cy);outline-offset:3px;border-radius:2px}

/* ---------- 基础排版 ---------- */
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--gold);font-weight:700;letter-spacing:.02em}
.section-title{margin:0;font-size:clamp(1.65rem,3.4vw,2.5rem);line-height:1.12;font-weight:900;letter-spacing:-.025em;transform:rotate(-.8deg);transform-origin:left center}
.display-title{margin:0;font-size:clamp(2.3rem,5.6vw,4rem);line-height:1.02;font-weight:900;letter-spacing:-.035em;transform:rotate(-1.6deg);transform-origin:left center}
.section-lead{margin:0;max-width:68ch;color:var(--muted);font-size:clamp(1rem,1.35vw,1.06rem)}
.eyebrow{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--cy)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cy);flex:0 0 auto}

/* ---------- 布局原语 ---------- */
.container{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:var(--gutter)}
.section{position:relative;padding-block:clamp(48px,7vw,104px)}
.section--tight{padding-block:clamp(28px,4vw,56px)}
.section-head{display:grid;gap:.9rem;max-width:70ch;margin-bottom:clamp(24px,3.5vw,48px)}
.grid{display:grid;gap:clamp(16px,2.5vw,32px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr))}
.grid--split{grid-template-columns:1fr}
@media (min-width:900px){
  .grid--split{grid-template-columns:1.55fr 1fr;align-items:start}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.78rem 1.25rem;border:1px solid var(--line-strong);border-radius:var(--radius);
  background:rgba(244,247,251,.05);color:var(--ink);
  font-size:.94rem;font-weight:800;letter-spacing:.01em;line-height:1.2;
  cursor:pointer;text-align:center;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  color:#200A00;border-color:transparent;
  background:linear-gradient(135deg,var(--orange-soft),var(--orange-deep));
  box-shadow:0 14px 30px -18px rgba(255,77,31,.95);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
}
.btn-primary:hover{box-shadow:0 18px 34px -16px rgba(255,77,31,1)}
.btn-primary:focus-visible{outline:none;box-shadow:0 0 0 2px var(--navy-900),0 0 0 4px var(--cy),0 14px 30px -18px rgba(255,77,31,.95)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(47,243,196,.6);color:#fff;background:rgba(47,243,196,.08)}
.btn-sm{padding:.5rem .9rem;font-size:.82rem}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;top:.6rem;left:.6rem;z-index:200;
  padding:.7rem 1.1rem;border-radius:2px;
  background:var(--cy);color:#04211B;font-weight:800;font-size:.9rem;
  transform:translateY(-180%);
  transition:transform .2s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0);outline:2px solid #04211B;outline-offset:2px}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  color:var(--ink);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:rgba(7,26,47,.94);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:0 26px 50px -42px #000;
}
.header-rail{
  border-bottom:1px solid var(--line-soft);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  color:#8FA6BF;
}
.rail-inner{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding-block:.45rem;
}
.rail-item{display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap}
.rail-item--meta{color:var(--gold);letter-spacing:.12em}
.rail-dot{width:6px;height:6px;border-radius:50%;background:var(--cy);box-shadow:0 0 0 3px rgba(47,243,196,.16);flex:0 0 auto}
.header-main{position:relative}
.header-inner{
  display:flex;align-items:center;gap:clamp(.6rem,2vw,1.6rem);
  min-height:72px;padding-block:.55rem;
}
.brand{display:inline-flex;align-items:center;gap:.7rem;flex:0 0 auto;color:var(--ink)}
.brand:focus-visible{outline-offset:5px}
.brand-mark{
  display:grid;place-items:center;flex:0 0 auto;
  width:38px;height:38px;color:#160800;
  background:linear-gradient(140deg,var(--orange-soft),var(--orange-deep));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;min-width:0;line-height:1.15}
.brand-name{font-size:1.04rem;font-weight:900;letter-spacing:.02em;white-space:nowrap}
.brand-line{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;color:var(--cy);margin-top:.2rem}
.header-actions{display:flex;align-items:center;gap:.55rem;flex:0 0 auto}
.header-cta{flex:0 0 auto}

/* ---------- 导航 ---------- */
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:.15rem;flex-wrap:nowrap}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:.42rem;
  padding:.55rem .7rem;border-radius:2px;
  font-size:.94rem;font-weight:600;color:#C9D8E8;white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-index{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;color:var(--steel);transition:color .2s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:.7rem;right:.7rem;bottom:.3rem;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--cy));
  transform:scaleX(0);transform-origin:left center;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(244,247,251,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link:hover .nav-index{color:var(--cy)}
.nav-link[aria-current="page"]{color:#fff}
.nav-link[aria-current="page"] .nav-index{color:var(--orange)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

/* ---------- 移动导航按钮 ---------- */
.nav-toggle{
  display:none;align-items:center;gap:.5rem;margin:0;
  padding:.55rem .75rem;border:1px solid var(--line-strong);border-radius:2px;
  background:rgba(244,247,251,.06);color:var(--ink);
  font-size:.84rem;font-weight:700;cursor:pointer;
}
.nav-toggle:hover{background:rgba(244,247,251,.12)}
.nav-toggle-bars{display:grid;gap:5px;width:20px}
.nav-toggle-bars span{display:block;height:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease)}
.site-header[data-open="true"] .nav-toggle-bars span:first-child{transform:translateY(3.5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bars span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ---------- 阅读进度 ---------- */
.header-progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;pointer-events:none;
  background:linear-gradient(90deg,var(--orange-deep),var(--orange) 45%,var(--cy));
  transform:scaleX(var(--progress,0));transform-origin:0 50%;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  padding-block:clamp(44px,6vw,80px) 0;
  background:linear-gradient(180deg,#0A0F17 0%,#050A12 100%);
  color:#C6D4E4;
  border-top:1px solid var(--line);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--orange-deep),var(--orange) 22%,var(--cy) 58%,rgba(47,243,196,0) 92%);
}
.site-footer::after{
  content:"";position:absolute;top:3px;left:0;width:46%;height:1px;
  background:linear-gradient(90deg,rgba(255,107,44,.75),rgba(255,107,44,0));
  transform:rotate(-1.1deg);transform-origin:left center;pointer-events:none;
}
.footer-inner{position:relative;z-index:1}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.7fr) repeat(3,minmax(0,1fr));
  gap:clamp(22px,4vw,56px);
  padding-bottom:clamp(26px,4vw,48px);
}
.footer-brand{min-width:0}
.footer-brand-link{display:inline-flex;align-items:center;gap:.65rem;color:var(--mist);font-weight:900;font-size:1.04rem}
.footer-brand-link .brand-mark{width:32px;height:32px}
.footer-brand-link .brand-mark svg{width:17px;height:17px}
.footer-brand-name{letter-spacing:.02em}
.footer-brand-summary{margin-top:1rem;max-width:42ch;color:#A9BCD2;font-size:.95rem;line-height:1.75}
.footer-note{margin-top:.85rem;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.04em;color:#7D93AB;line-height:1.7}
.footer-col{min-width:0}
.footer-col-title{
  display:flex;align-items:center;gap:.5rem;
  margin-bottom:.9rem;
  font-size:.76rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:#8FA6BF;
}
.footer-col-index{font-family:var(--font-mono);font-size:.7rem;color:var(--orange)}
.footer-links{display:grid;gap:.55rem}
.footer-link{display:inline-block;color:#C6D4E4;font-size:.95rem;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-link:hover{color:var(--cy);transform:translateX(3px)}
.footer-contact{
  display:flex;flex-wrap:wrap;align-items:center;gap:clamp(14px,3vw,40px);
  padding-block:clamp(20px,3vw,32px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.footer-contact .footer-col-title{margin:0}
.contact-list{display:flex;flex-wrap:wrap;gap:clamp(12px,2.5vw,32px);flex:1 1 340px;min-width:0}
.contact-row{display:flex;align-items:baseline;gap:.55rem;font-size:.9rem;min-width:0}
.contact-key{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--steel)}
.contact-val{color:#DCE7F3;word-break:break-word}
.footer-contact-cta{flex:0 0 auto}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.7rem 1.4rem;
  padding-block:1.4rem 1.6rem;
}
.footer-icp,.footer-copy{margin:0;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;color:#7D93AB}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:1.1rem}
.footer-legal-link{font-size:.78rem;color:#93A9C0;transition:color .18s var(--ease)}
.footer-legal-link:hover{color:var(--cy)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;
  margin-bottom:1.25rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--steel);
}
.breadcrumbs li{display:inline-flex;align-items:center;gap:.5rem}
.breadcrumbs li+li::before{content:"/";color:#4A6079}
.crumb{color:#A9BCD2;transition:color .18s var(--ease)}
.crumb:hover{color:var(--cy)}
.crumb[aria-current="page"]{color:var(--gold)}

/* ---------- 正文 ---------- */
.prose{max-width:72ch;color:#CBD9E7}
.prose h2{margin:0 0 .6em;font-size:clamp(1.35rem,2.4vw,1.7rem);line-height:1.25;font-weight:900;color:var(--mist)}
.prose h3{margin:0 0 .5em;font-size:clamp(1.08rem,1.8vw,1.22rem);font-weight:800;color:var(--mist)}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.2em}
.prose ul{list-style:square}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.4em}
.prose strong{color:#fff;font-weight:800}
.prose a{color:var(--cy);text-decoration:underline;text-underline-offset:3px}
.prose code{font-family:var(--font-mono);font-size:.88em;color:var(--gold);background:rgba(255,209,102,.1);padding:.1em .35em;border-radius:2px}

/* ---------- 面板 ---------- */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:linear-gradient(160deg,rgba(11,39,69,.94),rgba(7,26,47,.94));
  border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-panel);
}
.panel--cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%)}

/* ---------- 标签页 ---------- */
.tabs{display:grid;gap:clamp(16px,2.5vw,28px)}
.tablist{
  display:flex;flex-wrap:wrap;gap:.4rem;
  padding-bottom:.45rem;border-bottom:1px solid var(--line);
  overflow-x:auto;
}
.tab{
  appearance:none;
  padding:.55rem .95rem;border:1px solid transparent;border-radius:2px;
  background:transparent;color:#A9BCD2;
  font-size:.88rem;font-weight:800;letter-spacing:.02em;white-space:nowrap;cursor:pointer;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.tab:hover{color:#fff;background:rgba(244,247,251,.06)}
.tab[aria-selected="true"]{color:#04211B;background:linear-gradient(135deg,var(--cy),#7BFBDD);border-color:transparent}
.tab-panel{padding-block:.4rem}
.tab-panel:focus-visible{outline-offset:6px}

/* ---------- 标签 / 分段 ---------- */
.chip-group{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.4rem .8rem;border:1px solid var(--line);border-radius:999px;
  background:rgba(244,247,251,.04);color:#B9CBDD;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{color:#fff;border-color:rgba(47,243,196,.5);background:rgba(47,243,196,.08)}

/* ---------- 横向滚动轨道 ---------- */
.hscroll{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(240px,86vw);
  gap:clamp(14px,2vw,24px);
  overflow-x:auto;overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  padding-bottom:1rem;
  -webkit-overflow-scrolling:touch;
}
.hscroll>*{scroll-snap-align:start}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-track{background:rgba(244,247,251,.06)}
.hscroll::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--orange),var(--cy));border-radius:99px}
@media (min-width:640px){.hscroll{grid-auto-columns:minmax(280px,44%)}}
@media (min-width:1080px){.hscroll{grid-auto-columns:minmax(300px,32%)}}

/* ---------- 图片容器 ---------- */
.frame{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(150deg,var(--navy-800),var(--navy-950));
  isolation:isolate;
}
.frame::before{
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(47,243,196,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,243,196,.07) 1px,transparent 1px);
  background-size:40px 40px;
  opacity:.55;
}
.frame img,.frame picture,.frame video,.frame svg{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.frame--wide{aspect-ratio:16/9}
.frame--tall{aspect-ratio:3/4}
.frame--square{aspect-ratio:1/1}
.frame--strip{aspect-ratio:21/9}
.frame-caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:.7rem .9rem;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;color:#D7E4F1;
  background:linear-gradient(0deg,rgba(5,15,28,.92),rgba(5,15,28,0));
}

/* ---------- 显现 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 平板与手机 ---------- */
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;margin:0;
    padding:.7rem var(--gutter) 1.4rem;
    max-height:calc(100dvh - 120px);overflow-y:auto;
    background:linear-gradient(180deg,rgba(7,26,47,.99),rgba(5,15,28,.99));
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:0 44px 60px -44px #000;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .site-header[data-open="true"] .site-nav{opacity:1;visibility:visible;transform:none}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{
    width:100%;justify-content:flex-start;
    padding:.85rem .4rem;
    font-size:1rem;
    border-bottom:1px solid var(--line-soft);
    border-radius:0;
  }
  .nav-link::after{left:.4rem;right:auto;width:26px;bottom:.4rem;transform:scaleX(0)}
  .nav-link[aria-current="page"]::after{transform:scaleX(1)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
  .footer-contact{align-items:flex-start}
}
@media (max-width:720px){
  body{font-size:16px}
  .header-rail{display:none}
  .header-inner{min-height:64px;gap:.5rem}
  .brand-line{display:none}
  .footer-legal{justify-content:flex-start}
}
@media (max-width:520px){
  .nav-toggle-label{display:none}
  .nav-toggle{padding:.55rem .6rem}
  .brand{max-width:52%}
  .brand-name{font-size:.95rem;overflow:hidden;text-overflow:ellipsis}
  .header-cta{padding:.6rem .8rem;font-size:.8rem}
  .footer-grid{grid-template-columns:1fr}
  .contact-row{display:grid;gap:.1rem}
}
@media (max-width:360px){
  .header-cta{display:none}
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .reveal{opacity:1;transform:none}
  .btn:hover,.footer-link:hover{transform:none}
}