/* ============================================================
   大江体育 · 共享样式表 /assets/site.css
   深夜体育数据指挥中心：深海蓝空间 + 金属细边 + 电光青信号
   ============================================================ */

/* ---------- 1. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}

/* ---------- 2. 设计令牌 ---------- */
:root{
  --c-navy:#08192B;
  --c-navy-deep:#050F19;
  --c-navy-2:#0B2138;
  --c-board:#102E4A;
  --c-cyan:#1FE3D0;
  --c-cyan-soft:#8FF3E8;
  --c-green:#25C265;
  --c-red:#F0524B;
  --c-gold:#F3C544;
  --c-paper:#F2F7FB;
  --c-steel:#8AA6BE;
  --c-line:#24425E;
  --c-line-soft:rgba(36,66,94,.55);

  --f-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --f-mono:"JetBrains Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --fs-12:.75rem;
  --fs-14:.875rem;
  --fs-16:1rem;
  --fs-20:1.25rem;
  --fs-28:1.75rem;
  --fs-44:2.75rem;
  --fs-72:4.5rem;
  --fs-120:7.5rem;

  --maxw:1240px;
  --gutter:clamp(1rem,3.6vw,2.5rem);
  --radius:2px;
  --dur:.24s;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 1px 0 rgba(143,243,232,.05) inset,0 18px 36px -28px rgba(0,0,0,.9);
  --shadow-pop:0 24px 60px -30px rgba(0,0,0,.95);
}

/* ---------- 3. 页面基底 ---------- */
body{
  background:var(--c-navy);
  color:var(--c-paper);
  font-family:var(--f-sans);
  font-size:var(--fs-16);
  line-height:1.7;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(36,66,94,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(36,66,94,.42) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(120% 85% at 50% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(120% 85% at 50% 0%,#000 0%,transparent 72%);
  opacity:.62;
}
body::after{
  content:"";position:fixed;top:0;left:50%;transform:translateX(-50%);
  width:min(1400px,140vw);height:440px;z-index:-1;pointer-events:none;
  background:radial-gradient(58% 100% at 50% 0%,rgba(31,227,208,.10),transparent 72%);
}

/* ---------- 4. 排版工具 ---------- */
.display-xl{
  font-family:var(--f-sans);font-weight:900;
  font-size:clamp(2.75rem,9vw,7.5rem);
  line-height:.92;letter-spacing:-.035em;
}
.serif-lead{font-family:var(--f-serif);font-size:clamp(1.05rem,1.8vw,1.3rem);line-height:1.9;color:var(--c-cyan-soft)}
.lede{font-family:var(--f-serif);font-size:clamp(1rem,1.5vw,1.15rem);line-height:1.9;color:#CFE0EE;max-width:42em}
.num{font-family:var(--f-mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.01em}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--f-mono);font-size:var(--fs-12);
  letter-spacing:.22em;text-transform:uppercase;color:var(--c-cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-cyan);flex:none}
.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;
}

/* ---------- 5. 布局容器 ---------- */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(2.5rem,6vw,5rem)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:1.5rem;flex-wrap:wrap;
  border-bottom:1px solid var(--c-line);
  padding-bottom:.9rem;margin-bottom:clamp(1.5rem,4vw,2.5rem);
}
.section-title{font-weight:900;font-size:clamp(1.5rem,3.4vw,2.25rem);line-height:1.15;letter-spacing:-.015em}
.grid{display:grid;gap:clamp(1rem,2.4vw,1.75rem)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.band{
  background:linear-gradient(90deg,var(--c-navy-2),var(--c-board) 50%,var(--c-navy-2));
  border-block:1px solid var(--c-line);
  padding-block:clamp(1.5rem,4vw,2.5rem);
}

/* ---------- 6. 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.6em;
  padding:.85rem 1.5rem;border:1px solid var(--c-line);border-radius:var(--radius);
  background:var(--c-board);color:var(--c-paper);
  font-size:var(--fs-14);font-weight:700;letter-spacing:.04em;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn:hover{border-color:var(--c-cyan);color:var(--c-cyan);transform:translateY(-1px)}
.btn--primary{background:var(--c-cyan);border-color:var(--c-cyan);color:#04202b}
.btn--primary:hover{background:var(--c-cyan-soft);border-color:var(--c-cyan-soft);color:#04202b}
.btn--ghost{background:transparent;color:var(--c-cyan-soft)}
.btn--ghost:hover{background:rgba(31,227,208,.08);color:var(--c-cyan)}
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  padding:.2rem .5rem;border:1px solid var(--c-line);border-radius:var(--radius);
  font-family:var(--f-mono);font-size:var(--fs-12);letter-spacing:.06em;color:var(--c-steel);
}
.tag--up{color:var(--c-green);border-color:rgba(37,194,101,.45)}
.tag--down{color:var(--c-red);border-color:rgba(240,82,75,.45)}
.tag--cup{color:var(--c-gold);border-color:rgba(243,197,68,.45)}
.tag--live{color:var(--c-cyan);border-color:rgba(31,227,208,.45)}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{margin-block:clamp(1rem,2.5vw,1.75rem) 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:var(--fs-12);letter-spacing:.08em;color:var(--c-steel)}
.breadcrumb li{display:flex;align-items:center;gap:.5rem}
.breadcrumb li+li::before{content:"/";color:var(--c-line)}
.breadcrumb a{transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--c-cyan)}
.breadcrumb [aria-current="page"]{color:var(--c-paper)}

/* ---------- 8. 面板 / 表格 / 图片容器 ---------- */
.panel{
  position:relative;
  background:linear-gradient(180deg,rgba(16,46,74,.86),rgba(9,26,43,.92));
  border:1px solid var(--c-line);border-radius:var(--radius);
  box-shadow:var(--shadow-card);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:.9rem 1.15rem;border-bottom:1px solid var(--c-line);
}
.panel-title{font-weight:800;font-size:var(--fs-16);letter-spacing:.02em}
.panel-body{padding:1.15rem}

.data-table{width:100%;font-size:var(--fs-14)}
.data-table th{
  padding:.6rem .55rem;text-align:left;
  font-family:var(--f-mono);font-size:var(--fs-12);font-weight:600;
  letter-spacing:.12em;color:var(--c-steel);white-space:nowrap;
  border-bottom:1px solid var(--c-line);
}
.data-table td{padding:.55rem .55rem;border-bottom:1px solid var(--c-line-soft);vertical-align:middle}
.data-table tbody tr{transition:background var(--dur) var(--ease)}
.data-table tbody tr:hover{background:rgba(31,227,208,.06)}

.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16/9;
  border:1px solid var(--c-line);border-radius:var(--radius);
  background:linear-gradient(135deg,var(--c-board) 0%,var(--c-navy) 58%,var(--c-navy-2) 100%);
}
.media-frame::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(36,66,94,.5) 1px,transparent 1px),
    linear-gradient(90deg,rgba(36,66,94,.5) 1px,transparent 1px);
  background-size:32px 32px;opacity:.55;
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,25,43,0) 34%,rgba(8,25,43,.86) 100%);
}
.media-frame>img,.media-frame>svg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.06);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:1rem 1.15rem;
  font-family:var(--f-mono);font-size:var(--fs-12);letter-spacing:.1em;color:var(--c-cyan-soft);
}

/* ---------- 9. 头部 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;width:100%;height:2px;z-index:80;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-green));
  pointer-events:none;
}
.skip-link{
  position:absolute;left:var(--gutter);top:.5rem;z-index:90;
  padding:.6rem 1rem;border-radius:var(--radius);
  background:var(--c-cyan);color:#04202b;
  font-size:var(--fs-14);font-weight:800;
  transform:translateY(-180%);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:relative;z-index:60;
  background:var(--c-navy);
  border-bottom:1px solid var(--c-line);
}
.header-inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding-inline:var(--gutter);
  display:flex;align-items:center;gap:clamp(.75rem,2.4vw,2.25rem);
}
.header-upper{
  background:linear-gradient(90deg,var(--c-navy) 0%,var(--c-navy-2) 46%,var(--c-navy) 100%);
  border-bottom:1px solid var(--c-line-soft);
}
.header-upper .header-inner{padding-block:.85rem;justify-content:space-between}
.header-lower .header-inner{justify-content:space-between;padding-block:0}

.brand{display:inline-flex;align-items:center;gap:.7rem;min-width:0}
.brand-mark{
  display:grid;place-items:center;flex:none;
  width:38px;height:38px;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--c-cyan),#0FB6A8);
  color:#04202b;font-family:var(--f-mono);font-weight:800;font-size:.9rem;letter-spacing:-.04em;
}
.brand-text{display:flex;flex-direction:column;min-width:0;line-height:1.25}
.brand-name{font-weight:900;font-size:1.1rem;letter-spacing:.03em;white-space:nowrap}
.brand-desc{
  font-size:var(--fs-12);letter-spacing:.08em;color:var(--c-steel);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

.header-status{
  display:flex;align-items:center;gap:.5rem;flex:none;
  font-family:var(--f-mono);font-size:var(--fs-12);letter-spacing:.08em;color:var(--c-steel);
}
.status-label{color:var(--c-steel)}
.status-value{color:var(--c-cyan-soft)}
.status-dot{
  width:7px;height:7px;border-radius:50%;flex:none;
  background:var(--c-cyan);box-shadow:0 0 0 3px rgba(31,227,208,.16);
  animation:dj-pulse 2.4s ease-in-out infinite;
}
@keyframes dj-pulse{
  50%{opacity:.45;box-shadow:0 0 0 7px rgba(31,227,208,.06)}
}

.nav-toggle{
  display:none;align-items:center;gap:.55rem;flex:none;
  padding:.55rem .8rem;border:1px solid var(--c-line);border-radius:var(--radius);
  background:var(--c-board);color:var(--c-paper);
  font-size:var(--fs-12);letter-spacing:.14em;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--c-cyan);color:var(--c-cyan)}
.nav-toggle-icon{position:relative;display:block;width:16px;height:2px;background:currentColor}
.nav-toggle-icon::before,.nav-toggle-icon::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
  transition:transform var(--dur) var(--ease);
}
.nav-toggle-icon::before{top:-5px}
.nav-toggle-icon::after{top:5px}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after{transform:translateY(-5px) rotate(-45deg)}

.primary-nav{display:flex;flex:1 1 auto;min-width:0}
.nav-list{display:flex;flex-wrap:wrap;align-items:stretch}
.nav-list li{display:flex}
.nav-link{
  position:relative;display:flex;align-items:center;
  padding:.95rem clamp(.6rem,1.4vw,1.1rem);
  font-size:var(--fs-14);font-weight:700;letter-spacing:.05em;
  color:var(--c-steel);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:clamp(.6rem,1.4vw,1.1rem);right:clamp(.6rem,1.4vw,1.1rem);bottom:0;
  height:2px;background:var(--c-cyan);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--c-cyan)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.league-switch{
  display:inline-flex;align-items:center;gap:.6rem;flex:none;
  padding:.62rem 1rem;margin-block:.45rem;
  border:1px solid var(--c-line);border-left:2px solid var(--c-cyan);border-radius:var(--radius);
  background:rgba(16,46,74,.75);color:var(--c-cyan-soft);
  font-size:var(--fs-12);font-weight:700;letter-spacing:.14em;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.league-switch:hover{background:var(--c-board);border-color:var(--c-cyan);color:var(--c-cyan)}
.league-switch-arrow{
  width:7px;height:7px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:rotate(-45deg);
  transition:transform var(--dur) var(--ease);
}
.league-switch:hover .league-switch-arrow{transform:rotate(-45deg) translate(2px,2px)}

/* ---------- 10. 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:clamp(3rem,7vw,6rem);
  background:linear-gradient(180deg,var(--c-navy-2) 0%,#071827 55%,var(--c-navy-deep) 100%);
  border-top:1px solid var(--c-line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:min(420px,60%);height:2px;
  background:linear-gradient(90deg,var(--c-cyan),transparent);
}
.footer-inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:clamp(2.25rem,5vw,4rem) var(--gutter) clamp(1.5rem,3vw,2.5rem);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(1.5rem,3vw,3rem);
}
.footer-col{min-width:0}
.footer-col--brand{max-width:36ch}
.footer-col-title{
  display:flex;align-items:center;gap:.55rem;
  margin-bottom:1rem;
  font-size:var(--fs-12);font-weight:700;letter-spacing:.2em;color:var(--c-steel);
}
.footer-col-title::before{content:"";width:16px;height:1px;flex:none;background:var(--c-cyan)}
.footer-brand{display:flex;align-items:center;gap:.7rem;margin-bottom:1rem}
.footer-brand .brand-name{font-size:1.05rem}
.footer-claim{
  font-family:var(--f-serif);font-size:var(--fs-14);line-height:1.9;color:#BCD2E4;
  margin-bottom:1.1rem;
}
.footer-status{
  display:flex;align-items:center;gap:.5rem;
  font-family:var(--f-mono);font-size:var(--fs-12);letter-spacing:.08em;color:var(--c-steel);
}
.footer-nav li,.footer-legal li{border-bottom:1px solid var(--c-line-soft)}
.footer-nav a,.footer-legal a{
  display:block;padding:.5rem 0;font-size:var(--fs-14);color:#D7E6F2;
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-nav a:hover,.footer-legal a:hover{color:var(--c-cyan);transform:translateX(4px)}
.footer-note{margin-top:.9rem;font-size:var(--fs-12);line-height:1.8;color:var(--c-steel)}
.contact-list{display:grid;gap:.9rem}
.contact-item{display:grid;gap:.2rem}
.contact-label{
  font-family:var(--f-mono);font-size:.68rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--c-steel);
}
.contact-value{font-size:var(--fs-14);line-height:1.6;color:var(--c-paper);word-break:break-word}
.contact-note{margin-top:1rem;font-size:var(--fs-12);line-height:1.8;color:var(--c-steel)}

.footer-bottom{border-top:1px solid var(--c-line);background:rgba(5,15,25,.6)}
.footer-bottom-inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:.95rem var(--gutter);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 1.5rem;
}
.footer-copy,.footer-icp{
  font-family:var(--f-mono);font-size:var(--fs-12);letter-spacing:.05em;color:var(--c-steel);
}
.footer-copy [data-year]{color:var(--c-cyan-soft)}

/* ---------- 11. 滚动交互 ---------- */
.to-top{
  position:fixed;right:clamp(1rem,3vw,2rem);bottom:clamp(1rem,3vw,2rem);z-index:70;
  display:grid;place-items:center;width:46px;height:46px;
  border:1px solid var(--c-line);border-radius:var(--radius);
  background:rgba(16,46,74,.92);color:var(--c-cyan);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--c-cyan);background:var(--c-board)}
.to-top::before{
  content:"";width:9px;height:9px;
  border-left:1.5px solid currentColor;border-top:1.5px solid currentColor;
  transform:rotate(45deg) translate(1px,1px);
}

.has-js [data-reveal]{
  opacity:0;transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.has-js [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 12. 焦点可见 ---------- */
:focus-visible{
  outline:2px solid var(--c-cyan);
  outline-offset:3px;
  border-radius:var(--radius);
}

/* ---------- 13. 响应式：平板 ---------- */
@media (max-width:1100px){
  .nav-link{padding:.9rem .7rem;font-size:var(--fs-14);letter-spacing:.03em}
  .nav-link::after{left:.7rem;right:.7rem}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-col--brand{grid-column:1 / -1;max-width:52ch}
}
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- 14. 响应式：移动导航抽屉 ---------- */
@media (max-width:920px){
  .nav-toggle{display:inline-flex}
  .header-status{display:none}
  .header-lower .header-inner{padding-block:.6rem}
  .league-switch{margin-left:auto}
  .primary-nav{
    position:absolute;top:100%;left:0;right:0;z-index:55;
    flex-direction:column;
    max-height:calc(100vh - 96px);overflow-y:auto;
    padding:1rem var(--gutter) 1.4rem;
    background:linear-gradient(180deg,var(--c-navy-2) 0%,var(--c-navy) 100%);
    border-bottom:1px solid var(--c-line);
    box-shadow:var(--shadow-pop);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .primary-nav[data-open]{opacity:1;visibility:visible;transform:none}
  .nav-list{flex-direction:column;width:100%}
  .nav-list li{width:100%}
  .nav-link{
    width:100%;padding:.95rem .2rem;font-size:var(--fs-16);
    border-bottom:1px solid var(--c-line-soft);
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--c-cyan);background:rgba(31,227,208,.06)}
}

/* ---------- 15. 响应式：手机 ---------- */
@media (max-width:720px){
  .grid-2{grid-template-columns:1fr}
}
@media (max-width:640px){
  .grid-3,.grid-4{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:1.75rem}
  .footer-col--brand{grid-column:auto;max-width:none}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .display-xl{letter-spacing:-.025em}
  .to-top{width:42px;height:42px}
}

/* ---------- 16. 降低动效偏好 ---------- */
@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;
  }
  .status-dot{animation:none}
  .has-js [data-reveal]{opacity:1;transform:none}
}