/* ============================================================
   乐鱼体育中文站 · 共享样式 /assets/site.css
   深水蓝底 · 荧光青框架 · 暖橙数据高亮
   ============================================================ */

/* ---------- 变量 ---------- */
:root{
  --abyss:#061A2E;
  --abyss-2:#0D2B4A;
  --cyan:#3DF2D2;
  --blue:#2E9BFF;
  --orange:#FF7A2F;
  --amber:#FFC24D;
  --mist:#EEF6FF;
  --steel:#9FB6CC;
  --graphite:#03101C;
  --ripple:#1B4C63;

  --cyan-line:rgba(61,242,210,.28);
  --cyan-soft:rgba(61,242,210,.10);
  --steel-line:rgba(159,182,204,.22);
  --mist-soft:rgba(238,246,255,.86);

  --font-head:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Roboto Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shell-max:1440px;
  --gutter:clamp(16px,4vw,40px);
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:126px}
body{
  margin:0;
  min-height:100vh;
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.75;
  color:var(--mist);
  background-color:var(--abyss);
  background-image:
    radial-gradient(920px 460px at 10% -8%, rgba(46,155,255,.16), transparent 70%),
    radial-gradient(760px 380px at 96% 2%, rgba(61,242,210,.10), transparent 72%),
    radial-gradient(1200px 620px at 50% 118%, rgba(27,76,99,.5), transparent 72%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{max-width:100%}
[hidden]{display:none !important}
ul,ol{margin:0}

/* ---------- 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:900;
  line-height:1.12;
  letter-spacing:-.01em;
  color:var(--mist);
  margin:0 0 .5em;
}
h1{font-size:clamp(34px,5.6vw,64px);line-height:1.04}
h2{font-size:clamp(26px,3.2vw,34px)}
h3{font-size:clamp(19px,2vw,22px);font-weight:800}
h4{font-size:17px;font-weight:800;letter-spacing:.02em}
p{margin:0 0 1em}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--mist)}
strong{font-weight:800}
.num{
  font-family:var(--font-num);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

/* ---------- 布局容器与网格 ---------- */
.shell{width:100%;max-width:var(--shell-max);margin-inline:auto;padding-inline:var(--gutter)}
.shell--narrow{max-width:920px}
.shell--wide{max-width:1680px}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(14px,1.6vw,24px)}
.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-12{grid-column:span 12}
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(14px,2vw,26px)}
.rail-note{
  writing-mode:vertical-rl;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.28em;
  color:var(--steel);
  opacity:.72;
  margin:0;
}
.rule{height:1px;border:0;margin:clamp(24px,4vw,48px) 0;background:linear-gradient(90deg,var(--cyan-line),rgba(61,242,210,0))}
.ripple{
  position:absolute;
  width:min(560px,72vw);
  aspect-ratio:1/1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(61,242,210,.10),transparent 64%);
  pointer-events:none;
  z-index:0;
  animation:rippleDrift 20s ease-in-out infinite alternate;
}
@keyframes rippleDrift{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-42px,-26px,0)}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-family:var(--font-head);
  font-size:14.5px;
  font-weight:800;
  letter-spacing:.04em;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  cursor:pointer;
  white-space:nowrap;
  text-decoration:none;
  transition:transform .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--orange);color:#26100A;box-shadow:0 12px 28px -16px rgba(255,122,47,.95)}
.btn--primary:hover{background:#FF8C4C;color:#26100A}
.btn--ghost{background:transparent;color:var(--cyan);border-color:var(--cyan-line)}
.btn--ghost:hover{background:var(--cyan-soft);color:var(--mist);border-color:var(--cyan)}
.btn--quiet{background:rgba(13,43,74,.8);color:var(--mist);border-color:var(--steel-line)}
.btn--quiet:hover{border-color:var(--cyan-line);color:var(--mist)}
.btn--sm{padding:8px 15px;font-size:13px}

/* ---------- 头部：外框式导轨 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  overflow:hidden;
  background:rgba(6,26,46,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--cyan-line);
  box-shadow:0 18px 40px -34px rgba(0,0,0,.95);
}
.skip-link{
  position:absolute;
  top:-72px;
  left:50%;
  transform:translateX(-50%);
  z-index:120;
  padding:10px 20px;
  border-radius:0 0 var(--radius-pill) var(--radius-pill);
  background:var(--orange);
  color:#26100A;
  font-family:var(--font-head);
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:0;color:#26100A}
.frame-scan{
  position:absolute;
  left:0;
  bottom:0;
  width:34%;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  animation:scanLine 7s linear infinite;
  pointer-events:none;
}
@keyframes scanLine{
  0%{transform:translateX(-100%)}
  100%{transform:translateX(320%)}
}
.frame-progress{
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:rgba(13,43,74,.85);
  pointer-events:none;
}
.frame-progress__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--cyan),var(--blue));
}
.site-header__rail{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto auto auto;
  align-items:center;
  gap:clamp(10px,2vw,28px);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:13px var(--gutter) 12px;
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--mist);
  text-decoration:none;
}
.brand:hover{color:var(--mist)}
.brand__mark{
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50% 50% 50% 6px;
  transform:rotate(-45deg);
  background:linear-gradient(140deg,var(--cyan),var(--blue) 58%,var(--abyss-2));
  box-shadow:0 0 0 1px rgba(61,242,210,.45),0 0 18px rgba(61,242,210,.35);
}
.brand__text{display:flex;flex-direction:column;line-height:1.16}
.brand__name{font-family:var(--font-head);font-weight:900;font-size:17px;letter-spacing:.05em;color:var(--mist)}
.brand__line{font-family:var(--font-num);font-size:10.5px;letter-spacing:.2em;color:var(--steel)}
.brand--footer .brand__name{font-size:19px}
.brand__tagline{
  margin:0;
  padding-left:14px;
  border-left:1px dashed var(--steel-line);
  font-size:13px;
  letter-spacing:.04em;
  color:var(--steel);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.rail-coord{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0;
  font-family:var(--font-num);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--steel);
  white-space:nowrap;
}
.rail-coord__dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 3px rgba(255,194,77,.16);
  animation:dotPulse 3.4s ease-in-out infinite;
}
@keyframes dotPulse{
  0%,100%{opacity:1}
  50%{opacity:.35}
}
.site-header__actions{display:flex;align-items:center;gap:10px}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:8px 15px;
  border:1px solid var(--cyan-line);
  border-radius:var(--radius-pill);
  background:rgba(13,43,74,.6);
  color:var(--mist);
  font-family:var(--font-head);
  font-size:14px;
  font-weight:800;
  letter-spacing:.06em;
  cursor:pointer;
  transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--cyan-soft);border-color:var(--cyan);color:var(--mist)}
.nav-toggle__lines{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__lines span{display:block;height:2px;border-radius:2px;background:var(--cyan);transition:transform .26s var(--ease),opacity .2s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__lines span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 导航 */
.site-nav{
  position:relative;
  border-top:1px solid rgba(61,242,210,.16);
  background:linear-gradient(180deg,rgba(13,43,74,.55),rgba(6,26,46,0));
}
.site-nav__list{
  display:flex;
  align-items:center;
  gap:clamp(2px,1.2vw,18px);
  list-style:none;
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:0 var(--gutter);
}
.site-nav__item{display:block}
.site-nav__link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-family:var(--font-head);
  font-size:15px;
  font-weight:700;
  letter-spacing:.07em;
  color:var(--steel);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.site-nav__link::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:5px;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.site-nav__link:hover{color:var(--mist)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--mist)}
.site-nav__link[aria-current="page"]::before{
  content:"";
  position:absolute;
  inset:2px 0;
  border:1px solid var(--cyan-line);
  border-radius:var(--radius-pill);
  background:rgba(61,242,210,.06);
}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__note{
  display:none;
  position:absolute;
  right:var(--gutter);
  top:50%;
  transform:translateY(-50%);
  margin:0;
  font-family:var(--font-num);
  font-size:10.5px;
  letter-spacing:.24em;
  color:var(--steel);
  opacity:.7;
}

/* ---------- 区块头与卡片 ---------- */
.section-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  flex-wrap:wrap;
  padding-top:14px;
  margin-bottom:clamp(18px,3vw,32px);
  border-top:1px solid var(--cyan-line);
}
.section-head__index{
  font-family:var(--font-num);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--cyan);
}
.section-head__title{margin:0;font-size:clamp(24px,3.2vw,34px)}
.section-head__meta{margin:0 0 0 auto;font-size:13px;letter-spacing:.04em;color:var(--steel)}
.panel{
  position:relative;
  overflow:hidden;
  padding:clamp(18px,2.4vw,30px);
  border:1px solid var(--steel-line);
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(13,43,74,.92),rgba(6,26,46,.92));
}
.panel--flat{background:rgba(13,43,74,.55);border-radius:var(--radius-md)}
.panel--interactive{display:block;color:inherit;text-decoration:none;transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease)}
.panel--interactive:hover{transform:translateY(-2px);border-color:var(--cyan-line);box-shadow:0 20px 44px -28px rgba(0,0,0,.95);color:inherit}
.kpi{
  display:block;
  margin:0;
  font-family:var(--font-num);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  line-height:.95;
  font-size:clamp(34px,6vw,72px);
  color:var(--orange);
}
.kpi--cyan{color:var(--cyan)}
.kpi--amber{color:var(--amber)}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border:1px solid var(--steel-line);
  border-radius:var(--radius-pill);
  background:rgba(13,43,74,.7);
  font-family:var(--font-num);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--steel);
}
.tag--cyan{color:var(--cyan);border-color:var(--cyan-line)}
.tag--amber{color:var(--amber);border-color:rgba(255,194,77,.42)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,47,.45)}

/* ---------- 筛选胶囊 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  appearance:none;
  padding:7px 15px;
  border:1px solid var(--steel-line);
  border-radius:var(--radius-pill);
  background:rgba(13,43,74,.6);
  color:var(--steel);
  font-family:var(--font-body);
  font-size:14px;
  font-weight:600;
  letter-spacing:.03em;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{color:var(--mist);border-color:var(--cyan-line)}
.chip[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:#04202C;font-weight:800}
.chip--orange[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#26100A}
.filter-empty{
  padding:24px;
  border:1px dashed var(--steel-line);
  border-radius:var(--radius-md);
  text-align:center;
  font-size:14px;
  color:var(--steel);
}

/* ---------- Tab 切换 ---------- */
.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:5px;
  padding:5px;
  width:max-content;
  max-width:100%;
  border:1px solid var(--steel-line);
  border-radius:var(--radius-pill);
  background:rgba(13,43,74,.55);
}
.tabs__btn{
  appearance:none;
  padding:8px 17px;
  border:0;
  border-radius:var(--radius-pill);
  background:transparent;
  color:var(--steel);
  font-family:var(--font-head);
  font-size:14px;
  font-weight:800;
  letter-spacing:.05em;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease);
}
.tabs__btn:hover{color:var(--mist)}
.tabs__btn[aria-selected="true"]{background:var(--cyan);color:#04202C}
.tab-panel{margin:0}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border:1px solid var(--steel-line);
  border-radius:var(--radius-lg);
  background:
    linear-gradient(135deg,rgba(27,76,99,.6),rgba(6,26,46,.92) 62%),
    repeating-linear-gradient(115deg,rgba(61,242,210,.07) 0 2px,transparent 2px 18px);
}
.media::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:40%;
  background:linear-gradient(180deg,transparent,rgba(3,16,28,.78));
  pointer-events:none;
}
.media__img{display:block;width:100%;height:100%;object-fit:cover}
.media--16x9{aspect-ratio:16/9}
.media--21x9{aspect-ratio:21/9}
.media--4x3{aspect-ratio:4/3}
.media--3x2{aspect-ratio:3/2}
.media--1x1{aspect-ratio:1/1}
.media__tag{position:absolute;left:16px;bottom:14px;z-index:2}
.media__caption{margin:10px 0 0;font-size:12.5px;letter-spacing:.05em;color:var(--steel)}

/* ---------- 面包屑与正文 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  padding:0;
  margin:0 0 18px;
  font-family:var(--font-num);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--steel);
}
.crumbs a{color:var(--steel)}
.crumbs a:hover{color:var(--cyan)}
.crumbs__sep{color:rgba(61,242,210,.5)}
.prose{max-width:74ch;font-size:16.5px;line-height:1.8;color:var(--mist-soft)}
.prose h2,.prose h3{color:var(--mist)}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.3em}
.prose li{margin:.3em 0}
.prose a{color:var(--cyan);border-bottom:1px solid var(--cyan-line)}
.prose a:hover{color:var(--mist)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  margin-top:clamp(48px,7vw,96px);
  border-top:1px solid var(--cyan-line);
  background:var(--graphite);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(680px 300px at 8% 0%, rgba(61,242,210,.10), transparent 70%),
    radial-gradient(560px 260px at 88% 100%, rgba(46,155,255,.12), transparent 72%);
}
.site-footer__inner{
  position:relative;
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:clamp(20px,3vw,44px);
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:clamp(32px,5vw,64px) var(--gutter) 28px;
}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-brand__note{
  max-width:34ch;
  margin:0;
  font-size:14px;
  line-height:1.75;
  color:var(--steel);
}
.footer-brand__coord{
  margin:0;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.22em;
  color:rgba(159,182,204,.65);
}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col__title{
  margin:0;
  font-family:var(--font-num);
  font-size:12px;
  font-weight:700;
  letter-spacing:.22em;
  color:var(--cyan);
}
.footer-col__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.footer-col__list a{
  display:inline-block;
  font-size:14.5px;
  letter-spacing:.04em;
  color:var(--steel);
  text-decoration:none;
}
.footer-col__list a:hover{color:var(--mist)}
.footer-col__list--plain li{font-size:13.5px;line-height:1.7;color:var(--steel);word-break:break-word}
.footer-col__list--plain .num{color:var(--mist);font-size:13px}
.footer-col__cta{margin:2px 0 0}
.site-footer__legal{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 26px;
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding:18px var(--gutter) 32px;
  border-top:1px solid rgba(159,182,204,.16);
  font-size:12.5px;
  color:var(--steel);
}
.legal-line{
  margin:0;
  font-family:var(--font-num);
  font-weight:700;
  letter-spacing:.1em;
  color:var(--amber);
}
.legal-note{margin:0;max-width:62ch;line-height:1.7}
.legal-year{margin:0 0 0 auto;font-family:var(--font-num);letter-spacing:.1em}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .brand__tagline{display:none}
  .site-nav__note{display:none}
}
@media (min-width:861px) and (max-width:1180px){
  .site-nav__list{overflow-x:auto;scrollbar-width:none}
  .site-nav__list::-webkit-scrollbar{display:none}
}
@media (min-width:1240px){
  .site-nav__note{display:block;right:calc(var(--gutter) + 4px)}
}
@media (max-width:1080px){
  .site-footer__inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:span 2}
}
@media (max-width:860px){
  html{scroll-padding-top:96px}
  .site-header__rail{grid-template-columns:minmax(0,1fr) auto;gap:12px}
  .rail-coord,.site-header__actions,.brand__tagline{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{
    max-height:0;
    overflow:hidden;
    opacity:0;
    transition:max-height .38s var(--ease),opacity .26s var(--ease);
  }
  .site-nav[data-open]{
    max-height:min(72vh,560px);
    overflow-y:auto;
    opacity:1;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0;padding:6px var(--gutter) 20px}
  .site-nav__link{display:block;padding:15px 4px;font-size:16px;border-bottom:1px dashed rgba(159,182,204,.18)}
  .site-nav__link::after{bottom:2px}
  .site-nav__link[aria-current="page"]::before{inset:8px -6px;border-radius:var(--radius-md)}
  .grid-12{gap:14px}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 12}
  .split{grid-template-columns:1fr}
}
@media (max-width:720px){
  body{background-attachment:scroll;font-size:16px}
  .media--21x9{aspect-ratio:16/9}
  .site-footer__inner{grid-template-columns:1fr;padding-bottom:20px}
  .footer-brand{grid-column:span 1}
  .legal-year{margin-left:0}
  .btn{padding:10px 18px}
}

/* ---------- 可访问性：减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .frame-scan{display:none}
  .panel--interactive:hover{transform:none}
  .btn:hover{transform:none}
}