/* ============================================================
   欧普体育在线 / assets/site.css
   深夜战术室 · 堆叠面板 · 悬浮胶囊导航
   ============================================================ */

:root{
  --ink:#07090B;
  --panel:#11161B;
  --line:#242C33;
  --neon:#B6FF3B;
  --neon-soft:#E9FFC4;
  --yellow:#FFD23F;
  --red:#FF4B4B;
  --white:#F4F7F3;
  --muted:#93A0AB;
  --cyan:#2FD3C4;

  --radius-panel:28px;
  --radius-card:20px;
  --radius-pill:999px;

  --max:1280px;
  --gutter:24px;
  --stack:96px;

  --font-data:'JetBrains Mono','SFMono-Regular',ui-monospace,Menlo,Consolas,monospace;
  --font-head:'Archivo Narrow','Oswald','PingFang SC','Source Han Sans SC',sans-serif;
  --font-body:'Inter','PingFang SC','Source Han Sans SC','Microsoft YaHei',sans-serif;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:110px;
}

body{
  margin:0;
  background:var(--ink);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 84% -8%, rgba(182,255,59,.07), transparent 62%),
    radial-gradient(760px 460px at 4% 12%, rgba(47,211,196,.05), transparent 60%),
    linear-gradient(180deg, rgba(36,44,51,.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36,44,51,.32) 1px, transparent 1px);
  background-size:auto,auto,120px 120px,120px 120px;
  background-attachment:fixed;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
}

img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- 排版 ---------- */
.display{
  font-family:var(--font-head);
  font-weight:800;
  font-size:clamp(2.6rem,7vw,6.5rem);
  line-height:.95;
  letter-spacing:-.02em;
  margin:0;
}
.display--thin{font-weight:200;color:var(--neon-soft)}
.display--sm{font-size:clamp(1.8rem,3.6vw,3rem);line-height:1.04}

.section-title{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(1.6rem,2.6vw,2.6rem);
  line-height:1.1;
  letter-spacing:-.01em;
  margin:0 0 14px;
}

.num{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums slashed-zero;
  font-feature-settings:"tnum" 1,"zero" 1;
  letter-spacing:-.01em;
}

.index-label{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:none;
  line-height:1.6;
}

.prose{max-width:42em;color:rgba(244,247,243,.86);font-size:16.5px;line-height:1.75}
.prose p + p{margin-top:1em}
.prose strong{color:var(--neon-soft);font-weight:600}
.prose a{color:var(--neon);border-bottom:1px solid rgba(182,255,59,.35)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:var(--radius-pill);
  border:1px solid var(--line);
  font-size:12px;letter-spacing:.1em;
  color:var(--muted);
}
.tag--yellow{border-color:rgba(255,210,63,.45);color:var(--yellow)}
.tag--red{border-color:rgba(255,75,75,.45);color:var(--red)}
.tag--neon{border-color:rgba(182,255,59,.5);color:var(--neon)}

/* ---------- 布局 ---------- */
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}

.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gutter);
}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}

.stack{display:block}
.stack > .panel + .panel{margin-top:var(--stack)}

/* ---------- 面板 ---------- */
.panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  padding:clamp(24px,4vw,56px);
}
.panel--flush{padding:0;overflow:hidden}
.panel--tint{background:linear-gradient(150deg,#11161B 0%,#0A0E12 100%)}
.panel__head{
  display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;
  gap:12px;margin-bottom:28px;
}
.panel__title{
  font-family:var(--font-head);font-weight:700;font-size:1.35rem;letter-spacing:.01em;
}
.panel__meta{font-size:12px;letter-spacing:.14em;color:var(--muted)}

/* ---------- 章节标记 ---------- */
.marker{display:flex;align-items:center;gap:14px;margin-bottom:24px}
.marker__num{
  font-family:var(--font-data);font-size:12.5px;letter-spacing:.16em;color:var(--neon);
}
.marker__line{flex:none;width:46px;height:1px;background:var(--neon)}
.marker__text{font-size:12px;letter-spacing:.16em;color:var(--muted)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),transform .2s var(--ease);
  white-space:nowrap;
}
.btn--sm{height:38px;padding:0 16px;font-size:13.5px}
.btn--primary{background:var(--neon);color:#07090B;border-color:var(--neon)}
.btn--primary:hover{background:var(--neon-soft);border-color:var(--neon-soft)}
.btn--ghost{color:var(--white);border-color:var(--line);background:rgba(17,22,27,.5)}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn:active{transform:translateY(1px)}

/* ---------- 胶囊切换器 ---------- */
.pill-group{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(7,9,11,.4);
  font-size:13px;letter-spacing:.04em;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.pill:hover{color:var(--neon-soft);border-color:rgba(182,255,59,.45)}
.pill.is-active{background:var(--neon);border-color:var(--neon);color:#07090B;font-weight:600}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 28px;font-size:12px;letter-spacing:.12em;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.breadcrumb li{display:flex;align-items:center;gap:10px}
.breadcrumb li + li::before{content:"/";color:var(--line)}
.breadcrumb a:hover{color:var(--neon)}
.breadcrumb [aria-current="page"]{color:var(--neon-soft)}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card)}
.data-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
.data-table th,.data-table td{
  padding:13px 18px;text-align:left;border-bottom:1px solid var(--line);
}
.data-table thead th{
  font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:500;
  background:rgba(7,9,11,.6);white-space:nowrap;
}
.data-table td{color:rgba(244,247,243,.88)}
.data-table td.num{color:var(--white)}
.data-table tbody tr:hover{background:rgba(182,255,59,.05)}
.data-table th[data-sort]{cursor:pointer;user-select:none}
.data-table th[data-sort]::after{content:"↕";margin-left:8px;color:var(--line);font-size:11px}
.data-table th[aria-sort="ascending"]::after{content:"↑";color:var(--neon)}
.data-table th[aria-sort="descending"]::after{content:"↓";color:var(--neon)}
.data-table th.is-sorted{color:var(--neon-soft)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:linear-gradient(160deg,#11161B,#07090B);
}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:brightness(.76) contrast(1.08) saturate(.9)}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 90% at 82% 104%, rgba(182,255,59,.16), transparent 58%);
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.figure{margin:0}
.figure__caption{
  margin-top:10px;font-size:12px;letter-spacing:.1em;color:var(--muted);
}

/* ---------- 返顶浮岛 ---------- */
.to-top{
  position:fixed;right:clamp(14px,3vw,32px);bottom:clamp(14px,3vw,32px);
  z-index:55;height:46px;padding:0 18px;
  display:inline-flex;align-items:center;gap:8px;
  border-radius:var(--radius-pill);
  background:rgba(17,22,27,.92);border:1px solid var(--line);
  color:var(--muted);font-size:13px;letter-spacing:.08em;
  backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),
             visibility .25s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{color:var(--neon);border-color:var(--neon)}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:70;
  background:transparent;pointer-events:none;
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--cyan),var(--neon));
  transform:scaleX(var(--progress,0));transform-origin:left center;
  transition:transform .12s linear;
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:90;
  padding:10px 18px;border-radius:var(--radius-pill);
  background:var(--neon);color:#07090B;font-size:14px;font-weight:600;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:16px}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:18px clamp(12px,2.4vw,32px);
  transition:padding .3s var(--ease);
}
.header-shell{
  position:relative;z-index:2;
  width:100%;max-width:var(--max);margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 12px 10px 16px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(17,22,27,.82);
  backdrop-filter:blur(16px);
  transition:padding .3s var(--ease),background-color .3s var(--ease);
}

.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand__mark{
  display:grid;place-items:center;
  width:42px;height:42px;border-radius:14px;
  background:var(--neon);color:#07090B;
  font-family:var(--font-data);font-size:13px;font-weight:700;letter-spacing:.04em;
  flex:none;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:15px;font-weight:600;letter-spacing:.02em}
.brand__sub{
  font-size:11px;letter-spacing:.14em;color:var(--muted);
  max-height:22px;overflow:hidden;
  transition:opacity .3s var(--ease),max-height .3s var(--ease);
}

.primary-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--radius-pill);
  font-size:14px;color:var(--muted);
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:1px;
  background:var(--neon);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:var(--white)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{
  background:var(--neon);color:#07090B;font-weight:600;
}
.nav-link[aria-current="page"]::after{transform:scaleX(0)}

.header-tools{display:flex;align-items:center;gap:10px;flex:none;margin-left:6px}

.season-pill{
  display:flex;align-items:center;gap:9px;
  padding:4px 5px 4px 13px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  background:rgba(7,9,11,.55);
}
.season-pill__label{
  font-size:11px;letter-spacing:.14em;color:var(--muted);white-space:nowrap;
  max-height:20px;overflow:hidden;
  transition:opacity .3s var(--ease),max-height .3s var(--ease);
}
.season-pill__list{display:flex;gap:2px}
.season-pill__btn{
  height:28px;padding:0 11px;border-radius:var(--radius-pill);
  font-family:var(--font-data);font-size:12px;letter-spacing:.02em;
  color:var(--muted);
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.season-pill__btn:hover{color:var(--neon-soft)}
.season-pill__btn.is-active{background:rgba(182,255,59,.16);color:var(--neon)}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  height:40px;padding:0 15px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:rgba(7,9,11,.5);
  color:var(--muted);font-size:13px;letter-spacing:.08em;
}
.nav-toggle__bar{
  display:block;width:16px;height:1.5px;background:currentColor;border-radius:2px;
  transition:transform .25s var(--ease);
}
.nav-toggle__bar + .nav-toggle__bar{margin-top:-6px}
.site-header[data-open="true"] .nav-toggle{color:var(--neon);border-color:var(--neon)}
.site-header[data-open="true"] .nav-toggle__bar:first-child{transform:translateY(4px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__bar:last-of-type{transform:translateY(-4px) rotate(-45deg)}

.nav-scrim{
  position:fixed;inset:0;z-index:1;
  background:rgba(7,9,11,.66);backdrop-filter:blur(2px);
}

/* 滚动收合 */
.site-header.is-collapsed{padding-top:8px;padding-bottom:8px}
.site-header.is-collapsed .header-shell{
  padding:6px 10px 6px 12px;
  background:rgba(7,9,11,.92);
}
.site-header.is-collapsed .brand__sub{opacity:0;max-height:0}
.site-header.is-collapsed .season-pill__label{opacity:0;max-height:0}
.site-header.is-collapsed .nav-link{height:34px;font-size:13.5px}
.site-header.is-collapsed .brand__mark{width:36px;height:36px;border-radius:12px;font-size:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--stack);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(17,22,27,0) 0%,rgba(17,22,27,.72) 40%,rgba(7,9,11,.95) 100%);
}

.footer-band{border-bottom:1px solid var(--line);background:rgba(7,9,11,.5)}
.footer-band__list{
  max-width:var(--max);margin:0 auto;padding:0 var(--gutter);
  display:flex;align-items:stretch;overflow-x:auto;
  scrollbar-width:none;
}
.footer-band__list::-webkit-scrollbar{display:none}
.footer-band__item{
  display:flex;align-items:baseline;gap:10px;
  padding:18px 26px 18px 0;margin-right:26px;
  border-right:1px solid var(--line);
  white-space:nowrap;
}
.footer-band__item:last-child{border-right:0;margin-right:0}
.footer-band__num{font-size:20px;font-weight:700;color:var(--neon)}
.footer-band__key{font-size:12px;letter-spacing:.12em;color:var(--muted)}
.footer-band__item--live{align-items:center}
.dot{
  width:8px;height:8px;border-radius:50%;background:var(--neon);flex:none;
  box-shadow:0 0 0 4px rgba(182,255,59,.14);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(182,255,59,.14)}
  50%{box-shadow:0 0 0 9px rgba(182,255,59,0)}
}

.footer-main{padding:64px 0 40px}
.footer-main__grid{
  display:grid;
  grid-template-columns:4fr 6fr 2.6fr;
  gap:clamp(24px,4vw,56px);
}
.brand--footer{margin-bottom:16px}
.brand--footer .brand__mark{width:36px;height:36px;border-radius:12px;font-size:12px}
.footer-brand__desc{
  max-width:30ch;font-size:14px;line-height:1.7;color:var(--muted);
}

.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-col__title{
  font-size:12px;letter-spacing:.15em;color:var(--white);font-weight:600;
  margin-bottom:16px;padding-bottom:10px;border-bottom:1px solid var(--line);
}
.footer-col__list li + li{margin-top:10px}
.footer-col__list a{
  position:relative;font-size:14px;color:var(--muted);
  transition:color .2s var(--ease);
}
.footer-col__list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--neon);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s var(--ease);
}
.footer-col__list a:hover{color:var(--neon-soft)}
.footer-col__list a:hover::after{transform:scaleX(1)}

.footer-contact__list{display:flex;flex-direction:column;gap:12px}
.footer-contact__item{display:flex;flex-direction:column;gap:2px}
.footer-contact__key{font-size:11px;letter-spacing:.14em;color:var(--muted)}
.footer-contact__val{font-size:13.5px;color:rgba(244,247,243,.9);line-height:1.6;word-break:break-word}

.footer-legal{border-top:1px solid var(--line);padding:22px 0 34px}
.footer-legal__grid{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px 28px;
  font-size:12px;letter-spacing:.08em;color:var(--muted);
}
.footer-legal__note{max-width:52ch;line-height:1.7}
.legal-links{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.legal-links a{color:var(--muted);transition:color .2s var(--ease)}
.legal-links a:hover{color:var(--neon)}
.footer-icp{color:var(--muted)}
.footer-copy{color:var(--muted)}

/* ---------- 显现动效 ---------- */
html.js [data-reveal]{
  opacity:0;transform:translateY(12px);
  transition:opacity .55s var(--ease),transform .55s var(--ease);
}
html.js [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .header-index{display:none}
}

@media (max-width:1024px){
  .footer-main__grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-contact{grid-column:1 / -1}
}

@media (max-width:960px){
  :root{--stack:72px}
  .nav-toggle{display:inline-flex}
  .primary-nav{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    margin-left:0;
    padding:10px;
    border:1px solid var(--line);border-radius:24px;
    background:rgba(11,15,19,.97);
    backdrop-filter:blur(18px);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
  }
  .site-header[data-open="true"] .primary-nav{
    opacity:1;visibility:visible;transform:none;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{height:46px;padding:0 16px;font-size:15px;border-radius:18px}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{background:rgba(182,255,59,.14);color:var(--neon)}
  .header-tools{margin-left:auto}
  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12{grid-column:span 6}
}

@media (max-width:720px){
  body{font-size:15.5px}
  .panel{border-radius:22px}
  .footer-main{padding:48px 0 32px}
  .footer-nav{grid-template-columns:1fr 1fr}
  .footer-legal__grid{gap:12px 20px}
  .legal-links{margin-left:0}
}

@media (max-width:640px){
  .season-pill{display:none}
  .site-header{padding:12px 12px 0}
  .header-shell{gap:10px;padding:8px 10px 8px 12px}
  .brand__sub{display:none}
  .footer-main__grid{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr}
  .footer-band__item{padding:14px 18px 14px 0;margin-right:18px}
  .to-top{bottom:14px;right:14px}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js [data-reveal]{opacity:1;transform:none}
  .to-top{transform:none}
  .scroll-progress__bar{transition:none}
}