/* ============================================================
   乐宝看台 · 共享外壳样式 /assets/site.css
   ============================================================ */

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}

:root{
  --ink-0:#06090D;
  --ink-1:#0A0F16;
  --ink-2:#131B24;
  --ink-3:#1E2934;
  --line:#2C3A48;
  --dim:#9FB0C0;
  --text:#E6EDF3;
  --pulse:#39FF88;
  --amber:#FF7A2F;
  --cool:#4A7A9B;
  --pulse-deep:#0F3B27;

  --rail-w:0px;
  --topbar-h:64px;
  --wrap:1280px;
  --wrap-wide:1560px;
  --gutter:20px;

  --cut-sm:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  --cut-md:polygon(14px 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%,0 14px);
  --cut-lg:polygon(24px 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%,0 24px);

  --font-sans:"Helvetica Neue",Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

body{
  padding-left:var(--rail-w);
  min-height:100vh;
  background:var(--ink-0);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.75;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(120% 78% at 76% -8%,rgba(57,255,136,.07),transparent 55%),
    radial-gradient(95% 70% at 6% 112%,rgba(74,122,155,.12),transparent 62%);
}

a{color:var(--pulse);text-decoration:none}
p{color:#C6D2DC}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.02em;line-height:1.06;color:var(--text)}
h1{font-size:clamp(2.6rem,7vw,5.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.6rem)}
h3{font-size:clamp(1.1rem,1.6vw,1.35rem);line-height:1.25;letter-spacing:-.01em}
h4{font-size:1rem}

:focus-visible{outline:2px solid var(--pulse);outline-offset:2px}
.btn:focus-visible,.signal-cta:focus-visible,.nav-toggle:focus-visible,.to-top:focus-visible{
  outline:none;box-shadow:inset 0 0 0 2px var(--pulse);
}

/* ---------- 容器 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--wide{max-width:var(--wrap-wide)}
.prose{max-width:70ch}
.prose p{margin-bottom:1.1em}
.prose ul,.prose ol{list-style:disc;padding-left:1.4em;margin-bottom:1.1em}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.4em;color:#C6D2DC}

/* ---------- 通用文字 / 数字 ---------- */
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ---------- 侧边轨道与顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,9,13,.94);
  border-bottom:1px solid var(--ink-3);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
}

.skip-link{
  position:absolute;
  left:12px;
  top:-80px;
  z-index:200;
  padding:10px 18px;
  background:var(--pulse);
  color:#04160D;
  font-weight:700;
  font-size:.9rem;
  clip-path:var(--cut-sm);
  transition:top .2s ease;
}
.skip-link:focus{top:10px}

.scroll-progress{
  position:fixed;
  top:0;left:0;right:0;
  height:2px;
  z-index:120;
  pointer-events:none;
  background:rgba(30,41,52,.65);
}
.scroll-progress span{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--pulse),var(--cool));
}

.topbar{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  gap:14px;
  height:var(--topbar-h);
  padding:0 16px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  text-decoration:none;
  flex:none;
}
.brand__mark{
  width:20px;
  height:20px;
  flex:none;
  background:var(--pulse);
  clip-path:polygon(0 0,100% 0,0 100%);
}
.brand__name{
  font-size:1.05rem;
  font-weight:800;
  letter-spacing:-.01em;
}
.brand__sub{
  font-family:var(--font-mono);
  font-size:.66rem;
  letter-spacing:.16em;
  color:var(--dim);
  padding-left:9px;
  border-left:1px solid var(--line);
}

.topbar__league{
  display:none;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:6px 12px;
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.06em;
  color:var(--dim);
  background:var(--ink-2);
  border:1px solid var(--ink-3);
  clip-path:var(--cut-sm);
}

.pulse-dot{
  width:7px;height:7px;
  flex:none;
  border-radius:50%;
  background:var(--pulse);
  animation:pulse-ring 2.6s ease-in-out infinite;
}
@keyframes pulse-ring{
  0%,100%{box-shadow:0 0 0 0 rgba(57,255,136,.45)}
  50%{box-shadow:0 0 0 7px rgba(57,255,136,0)}
}

.signal-cta{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:10px 16px;
  font-size:.85rem;
  font-weight:700;
  color:var(--text);
  background:var(--ink-2);
  border:1px solid rgba(255,122,47,.35);
  clip-path:var(--cut-sm);
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.signal-cta:hover{border-color:var(--amber);background:#1A1410;color:#FFD9C2}
.signal-dot{
  width:8px;height:8px;flex:none;border-radius:50%;
  background:var(--amber);
  animation:blip 2.4s ease-in-out infinite;
}
@keyframes blip{
  0%,100%{box-shadow:0 0 0 0 rgba(255,122,47,.4);opacity:1}
  50%{box-shadow:0 0 0 6px rgba(255,122,47,0);opacity:.72}
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-left:auto;
  padding:9px 13px;
  font-size:.82rem;
  font-weight:700;
  letter-spacing:.04em;
  background:var(--ink-2);
  border:1px solid var(--ink-3);
  color:var(--text);
  cursor:pointer;
  clip-path:var(--cut-sm);
}
.nav-toggle:hover{border-color:var(--pulse);color:var(--pulse)}
.nav-toggle__bars{display:grid;gap:3px;width:16px}
.nav-toggle__bars i{display:block;height:2px;background:currentColor}
.nav-toggle__bars i:nth-child(2){width:70%}
.nav-toggle__text{font-family:var(--font-mono);letter-spacing:.14em}

/* ---------- 轨道导航 ---------- */
.rail{
  position:fixed;
  top:var(--topbar-h);
  left:0;
  bottom:0;
  width:min(86vw,340px);
  z-index:70;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:20px 18px 30px;
  overflow-y:auto;
  background:linear-gradient(180deg,var(--ink-1),var(--ink-0) 82%);
  border-right:1px solid var(--ink-3);
  transform:translateX(-104%);
  transition:transform .34s cubic-bezier(.2,.7,.2,1);
}
.rail[data-open]{transform:translateX(0)}

.rail__cap{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:600;
  letter-spacing:.2em;
  color:var(--dim);
}
.rail__cap::after{content:"";flex:1;height:1px;background:var(--ink-3)}
.rail__cap--gap{margin-top:6px}

.rail__list{display:grid;gap:2px}
.rail__link{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  font-size:.97rem;
  font-weight:700;
  color:var(--dim);
  border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.rail__link:hover{color:var(--text);background:var(--ink-2)}
.rail__link[aria-current="page"]{
  color:var(--text);
  border-left-color:var(--pulse);
  background:linear-gradient(90deg,rgba(57,255,136,.14),rgba(57,255,136,0) 72%);
}
.rail__link[aria-current="page"] .rail__num{color:var(--pulse)}
.rail__num{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.06em;
  color:rgba(159,176,192,.5);
}
.rail__label{letter-spacing:.01em}

.rail__leagues{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.rail__leagues li{
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.04em;
  color:var(--dim);
  padding:4px 8px;
  background:var(--ink-2);
  border:1px solid var(--ink-3);
  border-left:2px solid var(--cool);
}

.rail__note{
  display:flex;
  align-items:center;
  gap:9px;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--ink-3);
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--dim);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:18px;
  bottom:74px;
  z-index:110;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  font-size:1.05rem;
  font-weight:700;
  color:var(--text);
  background:var(--ink-2);
  border:1px solid var(--line);
  cursor:pointer;
  clip-path:var(--cut-sm);
  opacity:0;
  visibility:hidden;
  transform:translate(16px,16px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease,color .2s ease;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--pulse);color:#04160D;border-color:var(--pulse)}

/* ---------- 通用组件 ---------- */
.panel{
  position:relative;
  padding:20px;
  background:var(--ink-2);
  border:1px solid var(--ink-3);
  clip-path:var(--cut-md);
}
.panel--flat{background:var(--ink-1)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:var(--dim);
  background:var(--ink-2);
  border:1px solid var(--line);
}
.tag--pulse{color:var(--pulse);border-color:rgba(57,255,136,.4);background:rgba(57,255,136,.08)}
.tag--live{color:var(--amber);border-color:rgba(255,122,47,.45);background:rgba(255,122,47,.08)}
.tag--cool{color:#A9CBDD;border-color:rgba(74,122,155,.5);background:rgba(74,122,155,.14)}

.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  font-size:.95rem;
  font-weight:700;
  color:var(--text);
  background:var(--ink-2);
  border:1px solid var(--line);
  cursor:pointer;
  clip-path:var(--cut-sm);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{background:var(--ink-3);border-color:var(--pulse);color:var(--pulse)}
.btn--pulse{background:var(--pulse);color:#04160D;border-color:var(--pulse)}
.btn--pulse:hover{background:var(--pulse-deep);color:var(--pulse);border-color:var(--pulse)}
.btn--ghost{background:transparent}

.rule{height:1px;background:var(--ink-3);border:0}
.rule--scale{
  height:9px;
  background-color:transparent;
  background-image:repeating-linear-gradient(90deg,var(--ink-3) 0 1px,transparent 1px 14px);
  border-bottom:1px solid var(--ink-3);
  margin:22px 0;
}

.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:0;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  color:var(--dim);
}
.crumb li{display:flex;align-items:center}
.crumb li+li::before{content:"/";margin:0 9px;color:var(--line)}
.crumb a{color:var(--dim)}
.crumb a:hover{color:var(--pulse)}
.crumb [aria-current="page"]{color:var(--text)}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  margin-bottom:22px;
  padding-bottom:14px;
  border-bottom:1px solid var(--ink-3);
}
.section-head__num{
  display:block;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.18em;
  color:var(--pulse);
  margin-bottom:10px;
}

.grid{display:grid;gap:16px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.split{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:900px){
  .split{grid-template-columns:7fr 5fr}
  .split--even{grid-template-columns:1fr 1fr}
}

.ledger{border-top:1px solid var(--ink-3)}
.ledger li{
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--ink-3);
  font-size:.95rem;
  color:#C6D2DC;
}
.ledger li>span:last-child{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:.84rem;
  color:var(--dim);
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--ink-2);
  border:1px solid var(--ink-3);
  clip-path:var(--cut-md);
}
.media-frame>img,
.media-frame>svg,
.media-frame>picture>img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:linear-gradient(158deg,rgba(6,9,13,.12) 12%,rgba(6,9,13,.86) 100%);
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame__overlay{
  position:absolute;
  left:0;right:0;bottom:0;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:14px 16px;
  font-size:.82rem;
  color:var(--text);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:76px;
  padding:46px 0 26px;
  background:linear-gradient(180deg,var(--ink-1),var(--ink-0) 78%);
  border-top:1px solid var(--ink-3);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;left:0;
  width:132px;height:2px;
  background:var(--pulse);
}
.footer__inner{display:block}
.footer__grid{
  display:grid;
  gap:32px;
  grid-template-columns:1fr;
}
.footer__col--brand{display:flex;flex-direction:column;gap:16px}
.footer__lede{
  max-width:34ch;
  font-size:.92rem;
  color:var(--dim);
  line-height:1.8;
}
.footer__cap{
  font-family:var(--font-mono);
  font-size:.68rem;
  font-weight:600;
  letter-spacing:.2em;
  color:rgba(159,176,192,.75);
  margin-bottom:14px;
}
.footer__list{display:grid;gap:9px}
.footer__list a{
  font-size:.92rem;
  color:#C6D2DC;
  transition:color .2s ease;
}
.footer__list a:hover{color:var(--pulse)}
.footer__contact{display:grid;gap:9px}
.footer__contact li{
  display:flex;
  gap:10px;
  font-size:.88rem;
  line-height:1.6;
  color:#C6D2DC;
  word-break:break-word;
}
.footer__k{
  flex:none;
  min-width:36px;
  padding-top:2px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.12em;
  color:rgba(159,176,192,.6);
}
.footer__note{
  margin-top:14px;
  font-size:.78rem;
  line-height:1.7;
  color:rgba(159,176,192,.75);
}
.footer__base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:38px;
  padding-top:18px;
  border-top:1px solid var(--ink-3);
  font-family:var(--font-mono);
  font-size:.74rem;
  letter-spacing:.04em;
  color:var(--dim);
}
.footer__icp{color:rgba(159,176,192,.7)}

/* ---------- 断点 ---------- */
@media (max-width:1023px){
  .signal-cta{
    position:fixed;
    left:16px;
    right:16px;
    bottom:14px;
    z-index:100;
    justify-content:center;
    padding:13px 18px;
    background:var(--ink-2);
    border-color:rgba(255,122,47,.55);
  }
  body[data-nav-open]::after{
    content:"";
    position:fixed;
    inset:0;
    z-index:75;
    background:rgba(6,9,13,.72);
  }
  .site-footer{padding-bottom:88px}
}

@media (min-width:600px){
  .footer__grid{grid-template-columns:1fr 1fr}
}

@media (min-width:1024px){
  :root{--rail-w:240px;--gutter:28px}
  .topbar{padding:0 28px}
  .nav-toggle{display:none}
  .topbar__league{display:inline-flex}
  .rail{
    top:0;
    width:var(--rail-w);
    z-index:1;
    padding:80px 18px 28px;
    transform:none;
  }
  .footer__grid{grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
  .to-top{right:26px;bottom:26px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .rail{transition:none}
  .to-top{transition:none}
}