/* ============================================================
   /assets/site.css — 免费体育 · 博业数据台 共享外壳
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#14181F;
  --snow:#F7FAFF;
  --gray:#4A515A;
  --mineral:#F1E9DA;
  --moss:#6F7D5A;
  --clay:#B86F52;
  --ice:#1B6BFF;
  --lava:#FF5A1F;
  --cyan:#00E5C3;
  --frost:#DCE9FF;

  --rail-w:248px;
  --bar-h:60px;
  --ticker-h:34px;

  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-pill:999px;

  --font-display:"Helvetica Neue","Arial Narrow","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",SFMono-Regular,ui-monospace,Consolas,monospace;

  --fs-1:12px;
  --fs-2:16px;
  --fs-3:20px;
  --fs-4:28px;
  --fs-5:44px;
  --fs-6:72px;
  --fs-7:120px;

  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;

  --line:rgba(20,24,31,.14);
  --line-soft:rgba(20,24,31,.08);
  --line-dark:rgba(247,250,255,.14);
  --shadow-soft:0 22px 48px -28px rgba(20,24,31,.5);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;background:var(--snow);scroll-behavior:smooth;}
body,h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul[class],ol[class]{margin:0;padding:0;list-style:none;}
img,svg{max-width:100%;}
button{font:inherit;}
a{color:inherit;}

/* ---------- 3. 中文排版与基础 ---------- */
body{
  font-family:var(--font-body);
  font-size:var(--fs-2);
  line-height:1.65;
  color:var(--ink);
  background:var(--snow);
  letter-spacing:.01em;
  padding-top:calc(var(--ticker-h) + var(--bar-h));
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.12;letter-spacing:-.02em;}
p{text-wrap:pretty;}
::selection{background:var(--ice);color:#fff;}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible,
summary:focus-visible{
  outline:2px solid var(--ice);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:8px;
  left:8px;
  z-index:220;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--cyan);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transform:translateY(-200%);
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus-visible{transform:translateY(0);}

/* ---------- 5. 页头外壳 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:90;
  background:var(--ink);
  color:var(--snow);
}
.site-header a:focus-visible,
.site-header button:focus-visible{outline-color:var(--cyan);}

/* 比分带 */
.ticker{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:var(--ticker-h);
  padding:0 14px;
  overflow:hidden;
  background:linear-gradient(90deg,#0C1016 0%,#1B222C 72%,#14181F 100%);
  border-bottom:1px solid var(--line-dark);
  color:rgba(247,250,255,.82);
}
.ticker__tag{
  flex:none;
  padding:2px 9px;
  border-radius:var(--radius-pill);
  background:var(--lava);
  color:#fff;
  font-family:var(--font-mono);
  font-size:10.5px;
  font-weight:700;
  letter-spacing:.12em;
}
.ticker__track{
  position:relative;
  flex:1 1 auto;
  min-width:0;
  height:100%;
}
.ticker__item{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  font-size:12.5px;
  letter-spacing:.01em;
  color:rgba(247,250,255,.8);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  opacity:0;
  transform:translateY(100%);
  transition:opacity 240ms var(--ease),transform 320ms var(--ease);
}
.ticker__item.is-active{opacity:1;transform:translateY(0);}
.ticker__pulse{
  flex:none;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(0,229,195,.18);
  animation:score-pulse 2.4s var(--ease) infinite;
}
@keyframes score-pulse{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:.42;transform:scale(.8);}
}
.ticker__progress{
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--ice),var(--cyan));
  will-change:transform;
}

/* 左栏 */
.rail{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto auto;
  align-items:center;
  gap:8px;
  height:var(--bar-h);
  padding:0 14px;
  background:var(--ink);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
  color:var(--snow);
  text-decoration:none;
}
.brand__mark{
  flex:none;
  display:grid;
  place-items:center;
  width:30px;
  height:30px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--ice),var(--cyan));
  color:#06121A;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:15px;
  transform:skewX(-8deg);
}
.brand__text{
  display:flex;
  flex-direction:column;
  min-width:0;
  line-height:1.16;
}
.brand__name{font-size:15px;font-weight:800;letter-spacing:.02em;}
.brand__sub{
  font-family:var(--font-mono);
  font-size:9.5px;
  letter-spacing:.14em;
  color:rgba(247,250,255,.52);
}
.rail__month{
  display:inline-flex;
  align-items:center;
  padding:7px 12px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(0,229,195,.5);
  background:var(--cyan);
  color:#06121A;
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.rail__month:hover{background:#48FFDE;transform:translateY(-1px);}

/* 移动导航按钮 */
.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 11px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-dark);
  background:rgba(247,250,255,.07);
  color:var(--snow);
  font-size:12px;
  cursor:pointer;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-toggle:hover{background:rgba(247,250,255,.14);}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px;}
.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle__label{font-family:var(--font-mono);letter-spacing:.1em;}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5px) 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(-5px) rotate(-45deg);}

/* 导航（移动端折叠面板） */
.site-nav{
  grid-column:1 / -1;
  max-height:0;
  opacity:0;
  overflow:hidden;
  transition:max-height 260ms var(--ease),opacity 180ms var(--ease);
}
.site-header[data-open] .site-nav{
  max-height:72vh;
  opacity:1;
  overflow-y:auto;
}
.site-nav__list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:6px;
  padding:2px 0 10px;
}
.site-nav__item{display:block;min-width:0;}
.site-nav__link{
  display:flex;
  align-items:center;
  gap:9px;
  padding:10px 10px;
  border-radius:12px;
  border:1px solid transparent;
  color:rgba(247,250,255,.82);
  font-size:14px;
  text-decoration:none;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-nav__link:hover{background:rgba(27,107,255,.22);color:var(--snow);}
.site-nav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
  color:rgba(247,250,255,.38);
}
.site-nav__label{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.site-nav__link[aria-current="page"]{
  color:var(--snow);
  background:rgba(255,90,31,.16);
  box-shadow:inset 2px 0 0 var(--lava);
}
.site-nav__link[aria-current="page"] .site-nav__idx{color:var(--lava);}
.rail__foot{
  padding:4px 4px 14px;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.06em;
  line-height:1.7;
  color:rgba(247,250,255,.42);
}

/* ---------- 6. 桌面：导航成为左侧边框 ---------- */
@media (min-width:1024px){
  :root{--ticker-h:38px;}
  body{
    padding-top:var(--ticker-h);
    padding-left:var(--rail-w);
  }
  .site-header{
    inset:0 auto 0 0;
    right:auto;
    width:var(--rail-w);
    display:flex;
    flex-direction:column;
    border-right:1px solid var(--line-dark);
  }
  .ticker{
    position:fixed;
    top:0;
    left:var(--rail-w);
    right:0;
    height:var(--ticker-h);
    padding:0 24px;
    z-index:95;
  }
  .rail{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    flex:1 1 auto;
    min-height:0;
    height:auto;
    padding:24px 18px 20px;
    background:transparent;
  }
  .brand{gap:11px;}
  .brand__mark{width:34px;height:34px;font-size:16px;border-radius:11px;}
  .brand__name{font-size:16px;}
  .rail__month{
    justify-content:center;
    margin-top:20px;
    padding:9px 14px;
    font-size:12.5px;
  }
  .nav-toggle{display:none;}
  .site-nav{
    grid-column:auto;
    display:flex;
    flex-direction:column;
    flex:1 1 auto;
    margin-top:24px;
    max-height:none;
    opacity:1;
    overflow:visible;
  }
  .site-nav__list{grid-template-columns:1fr;gap:2px;padding:0;}
  .site-nav__link{padding:11px 12px;font-size:14.5px;}
  .site-nav__link:hover{transform:translateX(2px);}
  .rail__foot{margin-top:auto;padding:18px 4px 0;}
}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--ink);
  color:rgba(247,250,255,.76);
  padding:46px 20px 28px;
  border-top:3px solid transparent;
  border-image:linear-gradient(90deg,var(--ice),var(--cyan) 46%,var(--lava)) 1;
}
.site-footer a:focus-visible,
.site-footer button:focus-visible{outline-color:var(--cyan);}
.footer__inner{
  display:grid;
  gap:32px;
  max-width:1180px;
  margin:0 auto;
}
.footer__brand{min-width:0;}
.footer__brand-name{
  font-family:var(--font-display);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--snow);
}
.footer__brand-sub{margin-top:8px;font-size:13px;color:rgba(247,250,255,.5);}
.footer__cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:var(--lava);
  color:#fff;
  font-size:13px;
  font-weight:700;
  text-decoration:none;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer__cta:hover{background:#FF7A47;transform:translateX(3px);}
.footer__col{min-width:0;}
.footer__title{
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--cyan);
}
.footer__links{display:grid;gap:9px;}
.footer__link{
  color:rgba(247,250,255,.76);
  font-size:14px;
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer__link:hover{color:var(--snow);border-bottom-color:var(--lava);}
.footer__contact{display:grid;gap:14px;}
.footer__contact-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:3px 10px;
}
.footer__label{
  grid-column:1 / -1;
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:rgba(247,250,255,.4);
}
.footer__value{
  min-width:0;
  font-size:13.5px;
  color:var(--snow);
  word-break:break-word;
}
.copy-btn{
  padding:4px 10px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(0,229,195,.45);
  background:rgba(0,229,195,.12);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.copy-btn:hover{background:var(--cyan);color:#06121A;}
.copy-btn.is-done{background:var(--lava);border-color:var(--lava);color:#fff;}
.footer__legal{
  display:grid;
  gap:10px;
  max-width:1180px;
  margin:36px auto 0;
  padding-top:20px;
  border-top:1px solid var(--line-dark);
}
.footer__note{
  max-width:62ch;
  font-size:12.5px;
  line-height:1.75;
  color:rgba(247,250,255,.5);
}
.footer__copy,
.footer__icp{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.05em;
  color:rgba(247,250,255,.45);
}
@media (min-width:640px){
  .footer__inner{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media (min-width:768px){
  .footer__legal{grid-template-columns:minmax(0,1fr) auto;align-items:center;}
  .footer__note{grid-column:1 / -1;}
}
@media (min-width:1024px){
  .site-footer{padding:56px 32px 32px;}
  .footer__inner{grid-template-columns:1.5fr .85fr .7fr 1.35fr;gap:40px;}
}

/* ---------- 8. 布局与排版组件 ---------- */
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
.wrap--narrow{max-width:820px;}
@media (min-width:1024px){
  .wrap{padding:0 32px;}
}
.section{padding:clamp(48px,7vw,88px) 0;}
.section--mineral{background:var(--mineral);}
.section--ink{background:var(--ink);color:var(--snow);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  color:var(--ice);
}
.eyebrow::before{content:"";width:18px;height:2px;background:currentColor;border-radius:2px;}
.section--ink .eyebrow{color:var(--cyan);}

.title-1{
  font-size:clamp(38px,7.4vw,86px);
  line-height:.94;
  letter-spacing:-.038em;
}
.title-2{
  font-size:clamp(26px,3.6vw,44px);
  line-height:1.04;
  letter-spacing:-.028em;
}
.title-3{
  font-size:clamp(19px,2vw,24px);
  line-height:1.22;
  letter-spacing:-.012em;
  font-weight:700;
}
.lede{
  max-width:62ch;
  font-size:clamp(15px,1.15vw,18px);
  line-height:1.72;
  color:var(--gray);
}
.section--ink .lede{color:rgba(247,250,255,.7);}

.num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:-.03em;
  line-height:.92;
}
.divider{height:1px;background:var(--line);border:0;margin:0;}
.section--ink .divider{background:var(--line-dark);}

.grid-2{display:grid;gap:24px;}
@media (min-width:768px){
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
.split{display:grid;gap:32px;}
@media (min-width:1024px){
  .split{grid-template-columns:38fr 62fr;gap:52px;align-items:start;}
}

/* ---------- 9. 按钮与标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:13px 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn--primary{background:var(--ice);color:#fff;box-shadow:0 16px 32px -20px rgba(27,107,255,.95);}
.btn--primary:hover{background:#3D83FF;}
.btn--hot{background:var(--lava);color:#fff;box-shadow:0 16px 32px -20px rgba(255,90,31,.95);}
.btn--hot:hover{background:#FF7A47;}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--ink);background:rgba(20,24,31,.04);}
.btn--dark-ghost{background:transparent;color:var(--snow);border-color:var(--line-dark);}
.btn--dark-ghost:hover{background:rgba(247,250,255,.09);border-color:rgba(247,250,255,.3);}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:var(--frost);
  color:#16407F;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  white-space:nowrap;
}
.tag--ice{background:var(--ice);color:#fff;}
.tag--hot{background:rgba(255,90,31,.15);color:#C03C09;}
.tag--cyan{background:rgba(0,229,195,.18);color:#046A5B;}
.tag--ink{background:var(--ink);color:var(--cyan);}

/* ---------- 10. 面板与数据锚点 ---------- */
.card{
  position:relative;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:var(--snow);
}
.card--slant{
  border-radius:var(--radius-xl) var(--radius-xl) 8px var(--radius-xl);
  box-shadow:var(--shadow-soft);
}
.card--slant::before{
  content:"";
  position:absolute;
  right:0;
  bottom:0;
  width:56px;
  height:56px;
  border-bottom-right-radius:8px;
  background:linear-gradient(135deg,transparent 50%,var(--frost) 50%);
  pointer-events:none;
}
.section--ink .card{background:rgba(247,250,255,.05);border-color:var(--line-dark);color:var(--snow);}
.section--ink .card--slant::before{background:linear-gradient(135deg,transparent 50%,rgba(0,229,195,.16) 50%);}

.stat{display:grid;gap:6px;}
.stat__value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(44px,7vw,96px);
  font-weight:700;
  line-height:.88;
  letter-spacing:-.045em;
  color:var(--ink);
}
.section--ink .stat__value{color:var(--snow);}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--gray);
}
.section--ink .stat__label{color:rgba(247,250,255,.55);}
.stat__delta{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-family:var(--font-mono);
  font-size:12px;
  color:var(--lava);
}
.section--ink .stat__delta{color:var(--cyan);}

/* ---------- 11. 图片容器基础（供页面阶段使用） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--frost);
  aspect-ratio:16 / 10;
}
.media-frame img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(27,107,255,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(27,107,255,.16) 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.55;
  pointer-events:none;
}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;border-radius:var(--radius-xl) var(--radius-xl) 8px var(--radius-xl);}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame__caption{
  position:absolute;
  left:14px;
  bottom:12px;
  z-index:2;
  padding:4px 11px;
  border-radius:var(--radius-pill);
  background:rgba(20,24,31,.78);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
}

/* ---------- 12. 面包屑与长文 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--gray);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:rgba(74,81,90,.45);}
.breadcrumb a{
  color:var(--gray);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.breadcrumb a:hover{color:var(--ice);border-bottom-color:var(--ice);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:700;}

.prose{max-width:70ch;font-size:16px;line-height:1.8;color:var(--gray);}
.prose > * + *{margin-top:1.1em;}
.prose h2,.prose h3{color:var(--ink);margin-top:1.9em;}
.prose strong{color:var(--ink);}
.prose a{color:var(--ice);text-decoration:none;border-bottom:1px solid rgba(27,107,255,.35);}
.prose a:hover{border-bottom-color:var(--ice);}

/* ---------- 13. 入场动效 ---------- */
.has-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
.has-reveal [data-reveal].is-visible{
  opacity:1;
  transform:none;
}

/* ---------- 14. 降低动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-reveal [data-reveal]{opacity:1 !important;transform:none !important;}
  .btn:hover,.footer__cta:hover,.rail__month:hover,.site-nav__link:hover{transform:none;}
}