/* ============================================================
   LEYU移动登录 · 共享样式 / assets/site.css
   夜间体育数据台：深海墨蓝基底 + 青 / 橙 / 紫语义色 + 粗野主义描边
   ============================================================ */

/* ---------- reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%}

body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,blockquote,fieldset{margin:0}

ul,ol{padding:0;list-style:none}

img,svg,video{display:block;max-width:100%}

button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

a{color:inherit;text-decoration:none}

/* ---------- tokens ---------- */
:root{
  --ink:#061423;
  --panel:#0B2033;
  --raised:#123048;
  --line:#1F4459;

  --cyan:#3DF2D6;
  --orange:#FF7A2F;
  --purple:#A66BFF;
  --lime:#D8FF3E;
  --coral:#FF5A5F;

  --text:#EAF4F7;
  --muted:#93AEB8;

  --font-display:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-body:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --fs-hero:clamp(2.6rem,6vw,5rem);
  --fs-section:clamp(1.6rem,3vw,2.6rem);
  --fs-lead:clamp(1.05rem,1.6vw,1.35rem);
  --fs-body:1.0625rem;
  --fs-small:.8125rem;

  --wrap:1280px;
  --gutter:clamp(1rem,4vw,3rem);

  --edge:3px solid var(--line);
  --hard:8px 8px 0 #030b13;
  --hard-sm:4px 4px 0 #030b13;

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

/* ---------- base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(70vw 46vh at 86% -8%, rgba(61,242,214,.09), transparent 68%),
    radial-gradient(54vw 40vh at -4% 16%, rgba(255,122,47,.075), transparent 70%);
  background-attachment:fixed;
  background-repeat:no-repeat;
  color:var(--text);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

main{display:block;position:relative}

#main-content{scroll-margin-top:24px}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  font-stretch:condensed;
}

h1{font-size:var(--fs-hero)}
h2{font-size:var(--fs-section)}
h3{font-size:clamp(1.15rem,1.8vw,1.45rem)}

p{overflow-wrap:break-word}

:focus-visible{
  outline:3px solid var(--lime);
  outline-offset:3px;
}

::selection{background:var(--cyan);color:var(--ink)}

/* ---------- 通用工具 ---------- */
.shell{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.prose{font-size:var(--fs-body);line-height:1.85}
.prose > p{max-width:38em}
.prose > p + p{margin-top:1.15em}
.prose > h2{margin-top:2.1em;margin-bottom:.55em}
.prose > h3{margin-top:1.7em;margin-bottom:.45em}
.prose > ul{margin-top:1em;max-width:38em}
.prose > ul li{position:relative;padding-left:1.35em}
.prose > ul li + li{margin-top:.5em}
.prose > ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:8px;
  height:8px;
  background:var(--cyan);
}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.45rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--muted);
}
.crumbs a{color:var(--muted);transition:color .16s var(--ease)}
.crumbs a:hover{color:var(--cyan)}
.crumbs__sep{color:var(--line)}
.crumbs [aria-current="page"]{color:var(--text)}

/* ---------- 标签 / eyebrow ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.15rem .6rem;
  border:2px solid currentColor;
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.11em;
  line-height:1.7;
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan)}
.tag--orange{color:var(--orange)}
.tag--purple{color:var(--purple)}
.tag--muted{color:var(--muted)}

.eyebrow{
  --eyebrow-color:var(--cyan);
  display:flex;
  align-items:center;
  gap:.65rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  flex:none;
  width:22px;
  height:3px;
  background:var(--eyebrow-color);
}

/* ---------- 按钮 ---------- */
.btn{
  --btn-bg:transparent;
  --btn-fg:var(--text);
  --btn-bd:var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  padding:.8rem 1.45rem;
  border:3px solid var(--btn-bd);
  border-radius:2px;
  background:var(--btn-bg);
  color:var(--btn-fg);
  font-family:var(--font-display);
  font-weight:700;
  font-size:.9375rem;
  letter-spacing:.02em;
  line-height:1.3;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),
             background-color .16s var(--ease),color .16s var(--ease),
             border-color .16s var(--ease);
}
.btn:hover{
  transform:translate(-3px,-3px);
  box-shadow:5px 5px 0 #030b13;
}
.btn:active{transform:translate(0,0);box-shadow:none}

.btn--cyan{--btn-bg:var(--cyan);--btn-fg:var(--ink);--btn-bd:var(--cyan)}
.btn--orange{--btn-bg:var(--orange);--btn-fg:var(--ink);--btn-bd:var(--orange)}
.btn--lime{--btn-bg:transparent;--btn-fg:var(--lime);--btn-bd:var(--lime)}
.btn--ghost{--btn-bg:transparent;--btn-fg:var(--text);--btn-bd:var(--line)}

/* ---------- 媒体容器（页面阶段放图） ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  border:var(--edge);
  border-radius:2px;
  background-color:var(--raised);
  background-image:repeating-linear-gradient(
    135deg,
    rgba(61,242,214,.07) 0 10px,
    transparent 10px 22px
  );
}
.media img,
.media video{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media--4x3{aspect-ratio:4 / 3}
.media--1x1{aspect-ratio:1 / 1}
.media--wide{aspect-ratio:21 / 9}

.media__cap{
  display:block;
  margin-top:.6rem;
  font-size:.6875rem;
  letter-spacing:.08em;
  color:var(--muted);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{position:relative}

.skip-link{
  position:absolute;
  top:-96px;
  left:12px;
  z-index:999;
  padding:.7rem 1.1rem;
  background:var(--lime);
  color:var(--ink);
  border:3px solid var(--ink);
  font-family:var(--font-display);
  font-weight:700;
  font-size:.875rem;
  letter-spacing:.04em;
  transition:top .18s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{top:12px;outline-offset:4px}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  height:3px;
  z-index:120;
  background-image:linear-gradient(
    90deg,
    var(--cyan) 0 34%,
    var(--orange) 34% 67%,
    var(--purple) 67% 100%
  );
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
}

/* ---- 上层：品牌条 ---- */
.brandbar{
  background:var(--ink);
  border-bottom:1px solid var(--line);
  color:var(--muted);
}
.brandbar__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.5rem 1rem;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:.5rem var(--gutter);
}
.brandbar__id{
  display:flex;
  align-items:center;
  gap:.85rem;
  min-width:0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  color:var(--text);
  font-family:var(--font-display);
  font-weight:800;
  font-size:.9375rem;
  letter-spacing:.14em;
  white-space:nowrap;
}
.brand__mark{
  flex:none;
  width:13px;
  height:13px;
  background:var(--lime);
  box-shadow:3px 3px 0 var(--cyan);
  transform:rotate(45deg);
  transition:transform .25s var(--ease);
}
.brand:hover .brand__mark{transform:rotate(135deg)}
.brand__name{font-stretch:condensed}

.brand__tag{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  padding:.12rem .55rem .12rem .5rem;
  border:1px solid var(--line);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--muted);
  white-space:nowrap;
}
.brand__tag::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(61,242,214,.18);
}

.brandbar__meta{
  display:flex;
  align-items:center;
  gap:.9rem;
  flex-wrap:wrap;
}
.brandbar__region{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--muted);
}
.brandbar__tip{
  padding-left:.9rem;
  border-left:1px solid var(--line);
  font-size:.6875rem;
  letter-spacing:.08em;
  color:var(--muted);
}

/* ---- 下层：栏目导航 ---- */
.navwrap{
  position:relative;
  z-index:2;
  background:var(--panel);
  border-bottom:3px solid var(--line);
}
.navwrap__inner{
  display:flex;
  align-items:stretch;
  justify-content:space-between;
  gap:1rem;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:64px;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.6rem;
  align-self:center;
  padding:.55rem .75rem;
  border:2px solid var(--line);
  border-radius:2px;
  background:var(--raised);
  color:var(--text);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{
  display:grid;
  gap:4px;
  width:18px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--cyan);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle__text{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.18em;
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{
  flex:1 1 auto;
  min-width:0;
}
.site-nav__list{
  display:flex;
  align-items:stretch;
  flex-wrap:wrap;
  min-height:64px;
}
.site-nav__item{display:flex}

.site-nav__link{
  display:inline-flex;
  align-items:center;
  padding:0 1.05rem;
  border-radius:2px;
  font-family:var(--font-display);
  font-weight:700;
  font-size:.9375rem;
  letter-spacing:.02em;
  color:var(--muted);
  box-shadow:inset 0 0 0 var(--cyan);
  transition:color .18s var(--ease),background-color .18s var(--ease),
             box-shadow .18s var(--ease);
}
.site-nav__link:hover{
  color:var(--text);
  background:rgba(61,242,214,.08);
}
.site-nav__link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(61,242,214,.09);
  box-shadow:inset 0 -3px 0 var(--cyan);
}

.site-nav__link--accent{
  margin:.55rem .3rem .55rem 0;
  padding:0 1.15rem;
  background:var(--cyan);
  color:var(--ink);
  box-shadow:4px 4px 0 rgba(255,122,47,.85);
}
.site-nav__link--accent:hover{
  background:var(--lime);
  color:var(--ink);
  box-shadow:4px 4px 0 var(--orange);
}
.site-nav__link--accent[aria-current="page"]{
  background:var(--cyan);
  color:var(--ink);
  box-shadow:4px 4px 0 var(--orange), inset 0 -3px 0 var(--ink);
}

.navwrap__cta{
  align-self:center;
  flex:none;
  display:inline-flex;
  align-items:center;
  padding:.55rem 1rem;
  border:2px solid var(--lime);
  border-radius:2px;
  color:var(--lime);
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.14em;
  white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),
             transform .18s var(--ease),box-shadow .18s var(--ease);
}
.navwrap__cta:hover{
  background:var(--lime);
  color:var(--ink);
  transform:translate(-2px,-2px);
  box-shadow:4px 4px 0 rgba(255,122,47,.9);
}

/* ---- 收藏提示 ---- */
.fav-hint{
  position:fixed;
  left:calc(var(--gutter) * .75);
  bottom:calc(var(--gutter) * .75);
  z-index:150;
  display:flex;
  align-items:flex-start;
  gap:.75rem;
  max-width:min(340px,calc(100vw - 6.5rem));
  padding:.85rem 1rem;
  background:var(--raised);
  border:3px solid var(--line);
  border-radius:2px;
  box-shadow:6px 6px 0 rgba(3,11,19,.9);
  font-size:.8125rem;
  line-height:1.65;
  color:var(--muted);
  opacity:0;
  visibility:hidden;
  transform:translateY(14px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.fav-hint[data-visible]{
  opacity:1;
  visibility:visible;
  transform:none;
}
.fav-hint__text{margin:0}
.fav-hint__text strong{color:var(--text);font-weight:700}
.fav-hint__close{
  flex:none;
  display:grid;
  place-items:center;
  width:22px;
  height:22px;
  border:2px solid var(--line);
  border-radius:2px;
  color:var(--muted);
  font-size:.6875rem;
  line-height:1;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.fav-hint__close:hover{color:var(--text);border-color:var(--cyan)}

/* ---- 返回顶部 ---- */
.to-top{
  position:fixed;
  right:calc(var(--gutter) * .75);
  bottom:calc(var(--gutter) * .75);
  z-index:150;
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  background:var(--panel);
  border:3px solid var(--line);
  border-radius:2px;
  color:var(--text);
  box-shadow:5px 5px 0 rgba(3,11,19,.9);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),
             visibility .25s,border-color .2s var(--ease),color .2s var(--ease);
}
.to-top[data-visible]{
  opacity:1;
  visibility:visible;
  transform:none;
}
.to-top:hover{border-color:var(--orange);color:var(--orange)}
.to-top__arrow{font-size:1rem;line-height:1}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(3rem,8vw,7rem);
  background:var(--panel);
}
.site-footer::before{
  content:"";
  display:block;
  height:6px;
  background-image:linear-gradient(
    90deg,
    var(--cyan) 0 33.34%,
    var(--orange) 33.34% 66.67%,
    var(--purple) 66.67% 100%
  );
}

.footer__grid{
  display:grid;
  grid-template-columns:1.5fr .85fr 1.15fr 1.1fr;
  gap:clamp(1.5rem,3vw,3rem);
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:clamp(2.25rem,5vw,3.75rem) var(--gutter) clamp(1.75rem,4vw,2.75rem);
}

.footer__col{min-width:0}

.footer__brand{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  margin-bottom:1rem;
  color:var(--text);
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.0625rem;
  letter-spacing:.14em;
}
.footer__brand-mark{
  flex:none;
  width:12px;
  height:12px;
  background:var(--cyan);
  box-shadow:3px 3px 0 var(--purple);
  transform:rotate(45deg);
}
.footer__brand-name{font-stretch:condensed}

.footer__tagline{
  max-width:24em;
  color:var(--text);
  font-size:.9375rem;
  line-height:1.75;
}
.footer__note{
  max-width:26em;
  margin-top:.85rem;
  font-size:.75rem;
  line-height:1.8;
  letter-spacing:.04em;
  color:var(--muted);
}

.footer__title{
  margin-bottom:.9rem;
  font-family:var(--font-mono);
  font-size:.6875rem;
  font-weight:400;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--muted);
}

.footer__list{display:grid;gap:.55rem}

.footer__link{
  display:inline-block;
  font-size:.875rem;
  color:var(--muted);
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer__link:hover{
  color:var(--cyan);
  transform:translateX(3px);
}

.footer__contact-item{
  display:grid;
  gap:.15rem;
  font-size:.8125rem;
  line-height:1.7;
  color:var(--text);
  overflow-wrap:anywhere;
}
.footer__label{
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
}

.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:.65rem 1.5rem;
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding:1.15rem var(--gutter) 2rem;
  border-top:1px solid var(--line);
  font-size:.75rem;
  letter-spacing:.06em;
  color:var(--muted);
}
.footer__copy{margin:0}
.footer__legal{
  display:flex;
  flex-wrap:wrap;
  gap:.4rem 1.25rem;
}
.footer__legal-link{
  color:var(--muted);
  transition:color .16s var(--ease);
}
.footer__legal-link:hover{color:var(--lime)}
.footer__icp{
  margin:0;
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.08em;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1023px){
  .footer__grid{grid-template-columns:1fr 1fr}
  .footer__col--brand{grid-column:1 / -1}
}

@media (max-width:899px){
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:none;
    max-height:calc(100vh - 90px);
    overflow-y:auto;
    background:var(--panel);
    border-top:1px solid var(--line);
    border-bottom:3px solid var(--line);
    box-shadow:0 20px 40px rgba(3,11,19,.72);
  }
  .site-header[data-open] .site-nav{display:block}

  .site-nav__list{
    flex-direction:column;
    flex-wrap:nowrap;
    min-height:0;
  }
  .site-nav__item{
    border-bottom:1px solid var(--line);
  }
  .site-nav__item:last-child{border-bottom:0}

  .site-nav__link{
    width:100%;
    padding:.95rem 1.15rem;
    font-size:1rem;
    box-shadow:inset 0 0 0 var(--cyan);
  }
  .site-nav__link[aria-current="page"]{
    color:var(--cyan);
    background:rgba(61,242,214,.08);
    box-shadow:inset 4px 0 0 var(--cyan);
  }

  .site-nav__link--accent{
    justify-content:center;
    width:calc(100% - 2.3rem);
    margin:.8rem 1.15rem;
    padding:.85rem 1rem;
    box-shadow:4px 4px 0 rgba(255,122,47,.85);
  }
  .site-nav__link--accent[aria-current="page"]{
    box-shadow:4px 4px 0 var(--orange);
  }

  .navwrap__cta{
    padding:.5rem .75rem;
    font-size:.6875rem;
    letter-spacing:.1em;
  }
}

@media (max-width:639px){
  .brandbar__tip{display:none}
  .brandbar__region{font-size:.625rem;letter-spacing:.08em}
  .brand__tag{font-size:.625rem;letter-spacing:.06em}

  .footer__grid{grid-template-columns:1fr}
  .footer__col--brand{grid-column:auto}
  .footer__bottom{justify-content:flex-start}

  .to-top{width:44px;height:44px}
  .fav-hint{font-size:.75rem;padding:.7rem .85rem}
}

/* ============================================================
   动效退化
   ============================================================ */
@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .brand__mark{transition:none}
  .btn:hover,
  .navwrap__cta:hover,
  .footer__link:hover{transform:none}
  .fav-hint{transform:none}
  .to-top{transform:none}
}