/* =========================================================
   乐鱼体育 · 共享样式表 /assets/site.css
   框架式导航 + 泳道式纵向长卷
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::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,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse}

/* ---------- 2. 设计变量 ---------- */
:root{
  --ink:#0B1E33;
  --ink-2:#12293F;
  --aqua:#1FA7B8;
  --aqua-mid:#6FD3DE;
  --aqua-soft:#D7F0F3;
  --lime:#D8F542;
  --lime-deep:#A6BF1B;
  --lime-ink:#7C8C00;
  --paper:#F6FAFB;
  --text:#0F2233;
  --muted:#5A7186;
  --muted-dark:#8FA6BB;
  --grid:#25405A;

  --rail-w:0px;
  --gutter:20px;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}
@media (min-width:760px){ :root{ --gutter:40px } }
@media (min-width:1024px){ :root{ --rail-w:132px } }
@media (min-width:1120px){ :root{ --rail-w:148px } }
@media (min-width:1400px){ :root{ --rail-w:176px } }

/* ---------- 3. 中文排版基座 ---------- */
body{
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  min-height:100vh;
}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.22;letter-spacing:-.015em;text-wrap:balance}
h1{font-size:clamp(32px,5vw,64px)}
h2{font-size:clamp(24px,3.2vw,40px)}
h3{font-size:clamp(18px,2vw,28px)}
p{text-wrap:pretty}
.num,.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.02em}

:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.site-header :focus-visible,
.site-footer :focus-visible{outline-color:var(--lime)}

.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:10px;left:50%;
  transform:translate(-50%,-160%);
  z-index:200;
  background:var(--lime);
  color:var(--ink);
  font-size:14px;font-weight:700;line-height:1;
  padding:12px 18px;
  border:2px solid var(--ink);
  transition:transform .18s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

/* ---------- 5. 容器 / 网格 / 色带 ---------- */
.container{
  width:100%;
  max-width:1440px;
  margin-inline:auto;
  padding-inline:var(--gutter);
}
@media (min-width:1024px){
  .container{padding-inline:calc(var(--rail-w) + 28px)}
}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:24px;
}
@media (max-width:1023px){ .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));gap:20px} }
@media (max-width:700px){ .grid-12{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px} }

.band{
  background:var(--aqua-soft);
  border-top:1px solid var(--aqua);
  border-bottom:1px solid var(--aqua);
  padding-block:clamp(24px,4vw,48px);
}
.band--ink{background:var(--ink);color:var(--aqua-soft);border-color:var(--grid)}
.band--aqua{background:var(--aqua);color:var(--paper);border-color:var(--aqua)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--aqua);text-transform:uppercase;
}
.eyebrow::before{content:"";flex:none;width:6px;height:6px;background:var(--lime-ink)}
.band--ink .eyebrow::before,
.site-footer .eyebrow::before{background:var(--lime)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;
  font-family:var(--font-sans);
  font-size:14px;font-weight:700;line-height:1.2;letter-spacing:.03em;
  border:1px solid transparent;
  border-radius:0;
  cursor:pointer;
  transition:background-color .16s var(--ease),color .16s var(--ease),
             border-color .16s var(--ease),transform .16s var(--ease);
}
.btn--lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn--lime:hover{background:var(--lime-deep);border-color:var(--lime-deep);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--aqua-soft);border-color:var(--aqua)}
.btn--ghost:hover{background:rgba(31,167,184,.18);color:#fff;border-color:var(--aqua-mid);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

/* ---------- 7. 面包屑 ---------- */
.breadcrumb{margin-block:26px 10px}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--muted);
}
.breadcrumb__item{display:flex;align-items:center;gap:10px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--aqua-mid)}
.breadcrumb__list a{color:var(--muted);border-bottom:1px solid transparent}
.breadcrumb__list a:hover{color:var(--aqua);border-bottom-color:var(--aqua)}
.breadcrumb__item[aria-current="page"]{color:var(--text)}

/* ---------- 8. 正文 ---------- */
.prose{max-width:38em;font-size:16px;line-height:1.75;color:var(--text)}
.prose p{margin:0 0 1.25em}
.prose h2{font-size:clamp(22px,2.6vw,28px);margin:2em 0 .7em}
.prose h3{font-size:20px;margin:1.6em 0 .5em;font-weight:700}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.25em}
.prose ul{list-style:square}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.5em}
.prose a{color:#0E7180;text-decoration:underline;text-underline-offset:3px}
.prose blockquote{
  margin:0 0 1.5em;padding:16px 20px;
  background:var(--aqua-soft);
  border-left:3px solid var(--aqua);
}
.prose code{
  font-family:var(--font-mono);font-size:.92em;
  background:var(--aqua-soft);padding:2px 5px;
}

/* ---------- 9. 图片框基础规则 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background:var(--ink-2);
  border:1px solid var(--grid);
  border-radius:0;
}
.media-frame__img{display:block;width:100%;height:100%;object-fit:cover}
.media-frame--21x9{aspect-ratio:21/9}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--3x2{aspect-ratio:3/2}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--tint::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(31,167,184,.18),rgba(11,30,51,.44));
}
.media-frame--placeholder{
  background-color:var(--ink);
  background-image:
    repeating-linear-gradient(90deg,rgba(37,64,90,.85) 0 1px,transparent 1px 48px),
    repeating-linear-gradient(0deg,rgba(37,64,90,.85) 0 1px,transparent 1px 48px),
    linear-gradient(135deg,#12293F,#0B1E33);
}
.media-frame__tag{
  position:absolute;left:0;top:0;z-index:2;
  background:var(--lime);color:var(--ink);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  padding:4px 9px;
}
.media-frame__caption{
  display:block;margin-top:10px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.04em;color:var(--muted);
}

/* =========================================================
   10. 头部：框架式导航
   ========================================================= */
.site-header{
  position:fixed;
  inset:0;
  z-index:80;
  display:grid;
  grid-template-columns:var(--rail-w) minmax(0,1fr) var(--rail-w);
  pointer-events:none;
}
.site-header > *{pointer-events:auto}

.site-header__rail{
  height:100vh;
  height:100dvh;
  min-height:0;
  display:flex;
  flex-direction:column;
  background-color:var(--ink);
  color:var(--aqua-soft);
}
.site-header__rail--left{
  grid-column:1;
  padding:20px 16px 22px;
  gap:18px;
  border-right:1px solid var(--aqua);
  background-image:repeating-linear-gradient(to bottom,rgba(111,211,222,.45) 0 1px,transparent 1px 26px);
  background-size:7px 100%;
  background-repeat:no-repeat;
  background-position:right top;
}
.site-header__rail--right{
  grid-column:3;
  padding:20px 16px 22px;
  gap:16px;
  border-left:1px solid var(--aqua);
  background-image:repeating-linear-gradient(to bottom,rgba(111,211,222,.45) 0 1px,transparent 1px 26px);
  background-size:7px 100%;
  background-repeat:no-repeat;
  background-position:left top;
}

/* 品牌 */
.brand{
  display:flex;align-items:center;gap:10px;
  padding-bottom:16px;
  border-bottom:1px solid var(--grid);
}
.brand__mark{
  flex:none;width:10px;height:10px;background:var(--lime);
  box-shadow:0 0 0 3px rgba(216,245,66,.16);
}
.brand__text{display:block;min-width:0}
.brand__name{
  display:block;font-size:15px;font-weight:800;line-height:1.25;
  letter-spacing:.06em;color:var(--paper);white-space:nowrap;
}
.brand__line{
  display:block;font-family:var(--font-mono);font-size:10px;line-height:1.6;
  letter-spacing:.2em;color:var(--aqua-mid);
}

/* 汉堡按钮 */
.nav-toggle{display:none;align-items:center;gap:9px;
  padding:8px 12px;
  border:1px solid var(--aqua);
  color:var(--aqua-soft);
  font-size:13px;letter-spacing:.08em;
}
.nav-toggle__bars{
  position:relative;display:block;width:20px;height:2px;
  background:var(--aqua-soft);
  transition:background-color .18s var(--ease);
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;
  background:var(--aqua-soft);
  transition:transform .18s var(--ease);
}
.nav-toggle__bars::before{top:-6px}
.nav-toggle__bars::after{top:6px}

/* 导航 */
.site-nav{flex:1 1 auto;min-height:0}
.site-nav__list{
  display:flex;flex-direction:column;gap:2px;
  width:100%;height:100%;
  padding-top:4px;
}
.site-nav__item--cta{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--grid);
}
.site-nav__item--cta .btn{width:100%}
.site-nav__link{
  display:flex;align-items:baseline;gap:8px;
  padding:9px 8px;
  font-size:14px;line-height:1.5;
  color:var(--aqua-soft);
  border-left:2px solid transparent;
  transition:color .16s var(--ease),background-color .16s var(--ease),
             border-color .16s var(--ease),transform .16s var(--ease);
}
.site-nav__link:hover{
  color:#fff;
  background:rgba(31,167,184,.18);
  border-left-color:var(--aqua);
  transform:translateY(-2px);
}
.site-nav__link[aria-current="page"]{
  color:var(--lime);
  background:rgba(216,245,66,.10);
  border-left-color:var(--lime);
}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--lime)}
.site-nav__idx{
  flex:none;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;
  color:var(--aqua);
}
.site-nav__txt{flex:1 1 auto}

/* 赛事切换器 */
.league-switch{display:flex;flex-direction:column;gap:12px}
.league-switch__title{
  font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;
  color:var(--aqua-mid);
  padding-bottom:10px;
  border-bottom:1px solid var(--grid);
}
.league-switch__list{display:flex;flex-direction:column;gap:2px}
.league-switch__item{min-width:0}
.league-switch__btn{
  display:flex;align-items:center;gap:7px;
  width:100%;text-align:left;
  padding:8px;
  font-size:12.5px;line-height:1.45;
  color:var(--aqua-soft);
  border:1px solid transparent;
  border-radius:0;
  transition:color .16s var(--ease),border-color .16s var(--ease),background-color .16s var(--ease);
}
.league-switch__btn::before{
  content:"";flex:none;width:5px;height:5px;background:var(--grid);
  transition:background-color .16s var(--ease);
}
.league-switch__btn:hover{color:#fff;border-color:var(--aqua);background:rgba(31,167,184,.14)}
.league-switch__btn[aria-pressed="true"]{
  color:var(--lime);border-color:var(--lime);background:rgba(216,245,66,.10);
}
.league-switch__btn[aria-pressed="true"]::before{background:var(--lime)}

/* 滚动进度 */
.scroll-progress{
  position:fixed;left:0;top:0;
  width:3px;height:100vh;
  background:linear-gradient(180deg,var(--lime),var(--aqua));
  transform:scaleY(var(--p,0));
  transform-origin:top left;
  z-index:90;
  pointer-events:none;
  transition:transform .1s linear;
}

/* =========================================================
   11. 页脚
   ========================================================= */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,128px);
  background:var(--ink);
  color:var(--aqua-soft);
  border-top:1px solid var(--aqua);
}
.site-footer__band{
  height:10px;
  background-color:var(--ink-2);
  background-image:repeating-linear-gradient(90deg,var(--lime) 0 2px,transparent 2px 18px);
  border-bottom:1px solid var(--grid);
}
.site-footer__inner{
  display:grid;
  grid-template-columns:minmax(160px,1fr) minmax(0,2.4fr) minmax(220px,1.4fr);
  gap:clamp(28px,4vw,64px);
  padding-block:clamp(40px,5vw,64px) 44px;
}
.site-footer__brand-name{
  font-size:20px;font-weight:800;letter-spacing:.08em;color:var(--paper);
}
.site-footer__brand-line{font-size:13px;color:var(--aqua-mid);margin-top:4px}
.site-footer__index{
  display:inline-block;margin-top:14px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  color:var(--aqua);
  border:1px solid var(--grid);
  padding:3px 8px;
}
.site-footer__cols{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(18px,3vw,40px);
}
.footer-col{min-width:0}
.footer-col__title{
  font-family:var(--font-mono);
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--paper);
  padding-bottom:10px;margin-bottom:12px;
  border-bottom:1px solid var(--grid);
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__list a{
  font-size:13.5px;color:var(--aqua-soft);
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-col__list a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.site-footer__contact{min-width:0}
.contact-list{font-size:13.5px;line-height:1.7}
.contact-list dt{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  color:var(--aqua);margin-top:12px;
}
.contact-list dt:first-child{margin-top:0}
.contact-list dd{margin:2px 0 0;color:var(--aqua-soft);word-break:break-word}
.contact-list__note{
  margin-top:14px;
  font-size:12.5px;line-height:1.7;
  color:var(--muted-dark);
}
.site-footer__legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px;
  padding-block:20px 28px;
  border-top:1px solid var(--grid);
  font-size:12.5px;
  color:var(--muted-dark);
}
.legal-list{
  display:flex;flex-wrap:wrap;gap:12px 22px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
}
.legal-list a{color:var(--aqua-soft);border-bottom:1px solid transparent}
.legal-list a:hover{color:var(--lime);border-bottom-color:var(--lime)}
.site-footer__icp{font-family:var(--font-mono);letter-spacing:.06em}
.site-footer__copy{font-family:var(--font-mono);letter-spacing:.04em}

/* =========================================================
   12. 响应式：平板与手机
   ========================================================= */
@media (max-width:1023px){
  .site-header{
    position:sticky;
    top:0;
    inset:auto;
    grid-template-columns:minmax(0,1fr);
    background:var(--ink);
    border-bottom:1px solid var(--aqua);
    pointer-events:auto;
  }
  .site-header__rail{
    height:auto;
    background-image:none;
    border:0;
    flex-direction:row;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    padding:0;
  }
  .site-header__rail--left{
    grid-column:1;
    padding:12px 16px;
    gap:0;
    border-right:0;
  }
  .site-header__rail--right{display:none}

  .brand{padding-bottom:0;border-bottom:0}
  .nav-toggle{display:inline-flex}

  .site-nav{
    flex:0 0 100%;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    transition:max-height .26s var(--ease),visibility .26s var(--ease);
  }
  .site-nav__list{height:auto;padding-top:0;gap:0}
  .site-nav__link{
    padding:13px 6px;
    font-size:15px;
    border-left-width:0;
    border-bottom:1px solid rgba(37,64,90,.8);
  }
  .site-nav__link:hover{transform:none;background:rgba(31,167,184,.10)}
  .site-nav__link[aria-current="page"]{border-left-width:0}
  .site-nav__item--cta{margin-top:16px;padding-top:0;border-top:0}
  .site-nav__item--cta .btn{width:100%;padding:14px 18px}

  .site-header__rail--left[data-open] .site-nav{
    max-height:min(72vh,560px);
    overflow-y:auto;
    visibility:visible;
  }
  .site-header__rail--left[data-open] .nav-toggle__bars{background:transparent}
  .site-header__rail--left[data-open] .nav-toggle__bars::before{transform:translateY(6px) rotate(45deg)}
  .site-header__rail--left[data-open] .nav-toggle__bars::after{transform:translateY(-6px) rotate(-45deg)}

  .scroll-progress{
    width:100vw;height:3px;
    transform:scaleX(var(--p,0));
  }

  .site-footer__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__brand{grid-column:1 / -1}
}

@media (max-width:640px){
  .site-footer__inner{grid-template-columns:minmax(0,1fr)}
  .site-footer__cols{grid-template-columns:minmax(0,1fr);gap:24px}
  .site-footer__band{height:8px}
  .media-frame--21x9{aspect-ratio:16/9}
}

/* ---------- 13. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    transition-duration:.01ms!important;
    scroll-behavior:auto!important;
  }
  .site-nav__link:hover,
  .btn:hover{transform:none}
}