/* =========================================================
   /assets/site.css — 196体育官网 共享外壳
   深墨蓝底 · 电玩霓虹青 / 品红 / 琥珀金
   ========================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  --ink:#0B1020;
  --ink-2:#121A33;
  --panel:#1E2745;
  --line:rgba(154,169,199,.16);
  --line-strong:rgba(154,169,199,.32);

  --cyan:#3FF0D6;
  --magenta:#FF4FA3;
  --amber:#FFC24B;
  --white:#EAF2FF;
  --mist:#9AA9C7;
  --alert:#FF7A45;
  --green:#0F8F7A;

  --rail-w:240px;
  --bar-h:62px;
  --wrap-max:1440px;

  --r-sm:14px;
  --r-md:18px;
  --r-lg:22px;

  --font-head:'Inter Tight','Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'PingFang SC','Noto Sans SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,monospace;

  --ease:cubic-bezier(.22,.85,.24,1);
  --shadow-deep:0 30px 70px -34px rgba(0,0,0,.95);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,video,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 3. Base ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--white);
  background:var(--ink);
  padding-left:var(--rail-w);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* 极淡扫描线氛围层，只做氛围 */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:1;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(234,242,255,.028) 0 1px,transparent 1px 3px);
}

h1,h2,h3,h4,h5{
  font-family:var(--font-head);
  font-weight:850;
  letter-spacing:-.02em;
  line-height:1.08;
  text-wrap:balance;
}
h1{font-size:clamp(34px,5.4vw,68px)}
h2{font-size:clamp(24px,3.2vw,38px)}
h3{font-size:clamp(19px,2.1vw,24px)}
p{text-wrap:pretty}

::selection{background:var(--cyan);color:#04191A}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
  border-radius:6px;
}

.mono{
  font-family:var(--font-mono);
  font-feature-settings:"tnum" 1,"zero" 1;
  letter-spacing:.02em;
}

/* ---------- 4. Layout ---------- */
.wrap{
  width:100%;
  max-width:var(--wrap-max);
  margin-left:auto;
  margin-right:auto;
  padding-left:clamp(16px,3.4vw,44px);
  padding-right:clamp(16px,3.4vw,44px);
}

.section{padding-block:clamp(44px,6vw,84px)}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:14px 28px;
  margin-bottom:clamp(20px,3vw,34px);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:24px;
  height:1px;
  background:currentColor;
  opacity:.65;
}

.lead{
  font-size:clamp(16px,1.4vw,19px);
  line-height:1.6;
  font-weight:500;
  color:rgba(234,242,255,.8);
  max-width:62ch;
}

.rule-strip{
  height:1px;
  border:0;
  margin-block:clamp(30px,4.4vw,58px);
  background:linear-gradient(90deg,transparent,rgba(63,240,214,.55),rgba(255,79,163,.4),transparent);
}

.note{
  font-size:13.5px;
  line-height:1.7;
  color:var(--mist);
  border-left:2px solid rgba(63,240,214,.42);
  padding-left:14px;
}

/* ---------- 5. Header / 侧边轨道 ---------- */
.skip-link{
  position:fixed;
  top:-100px;
  left:14px;
  z-index:200;
  padding:11px 20px;
  border-radius:0 0 14px 14px;
  background:var(--cyan);
  color:#04191A;
  font-family:var(--font-head);
  font-weight:800;
  font-size:14px;
  transition:top .22s var(--ease);
}
.skip-link:focus{top:0}

.rail{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-w);
  z-index:80;
  display:flex;
  flex-direction:column;
  background:linear-gradient(180deg,#0E1530 0%,#0B1020 78%,#0B1020 100%);
  border-right:1px solid var(--line);
  overflow:visible;
}
.rail::after{
  content:"";
  position:absolute;
  inset:0 auto 0 0;
  width:1px;
  background:linear-gradient(180deg,transparent,rgba(63,240,214,.5),rgba(255,79,163,.35),transparent);
  pointer-events:none;
}

.rail-head{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:20px 18px 16px;
  border-bottom:1px solid var(--line);
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  min-width:0;
}
.brand-num{
  font-family:var(--font-mono);
  font-size:21px;
  font-weight:700;
  letter-spacing:-.04em;
  color:var(--cyan);
  text-shadow:0 0 20px rgba(63,240,214,.55);
}
.brand-meta{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{
  font-family:var(--font-head);
  font-size:15px;
  font-weight:850;
  letter-spacing:-.01em;
  color:var(--white);
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--mist);
  white-space:nowrap;
}

.rail-toggle{display:none}

.rail-panel{
  position:relative;
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  overscroll-behavior:contain;
  padding:16px 14px 20px;
  display:flex;
  flex-direction:column;
  gap:20px;
  scrollbar-width:thin;
  scrollbar-color:var(--panel) transparent;
}
.rail-panel::-webkit-scrollbar{width:6px}
.rail-panel::-webkit-scrollbar-thumb{background:var(--panel);border-radius:6px}

.rail-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--mist);
  margin-bottom:9px;
}

/* 检索 */
.rail-search{display:block}
.search-box{position:relative}
.search-icon{
  position:absolute;
  left:13px;
  top:50%;
  width:11px;
  height:11px;
  margin-top:-8px;
  border:1.6px solid var(--mist);
  border-radius:50%;
  pointer-events:none;
  transition:border-color .22s;
}
.search-icon::after{
  content:"";
  position:absolute;
  right:-4px;
  bottom:-3px;
  width:6px;
  height:1.6px;
  background:var(--mist);
  transform:rotate(45deg);
  transition:background .22s;
}
.search-input{
  width:100%;
  padding:11px 12px 11px 34px;
  border-radius:13px;
  background:rgba(30,39,69,.62);
  border:1px solid var(--line);
  color:var(--white);
  font-size:14px;
  line-height:1.4;
  transition:border-color .22s,background .22s,box-shadow .22s;
}
.search-input::placeholder{color:rgba(154,169,199,.78)}
.search-input:hover{border-color:var(--line-strong)}
.search-input:focus{
  outline:none;
  border-color:rgba(63,240,214,.6);
  background:rgba(30,39,69,.9);
  box-shadow:0 0 0 3px rgba(63,240,214,.14);
}
.search-box:focus-within .search-icon{border-color:var(--cyan)}
.search-box:focus-within .search-icon::after{background:var(--cyan)}
.search-hint{
  margin-top:8px;
  font-size:11.5px;
  line-height:1.6;
  color:var(--mist);
}

/* 导航 */
.rail-nav-list{display:flex;flex-direction:column;gap:3px}
.rail-nav-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:12px;
  font-size:14.5px;
  color:var(--mist);
  transition:background .22s var(--ease),color .22s var(--ease),box-shadow .28s var(--ease);
}
.rail-nav-link:hover{background:rgba(63,240,214,.07);color:var(--white)}
.rail-nav-link[aria-current="page"]{
  color:var(--cyan);
  background:linear-gradient(100deg,rgba(63,240,214,.22),rgba(63,240,214,.03));
  box-shadow:inset 0 0 0 1px rgba(63,240,214,.4),0 0 26px -12px rgba(63,240,214,.9);
  font-weight:600;
}
.rail-nav-num{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  opacity:.72;
  transition:opacity .22s;
}
.rail-nav-link[aria-current="page"] .rail-nav-num{opacity:1}
.rail-nav-text{min-width:0}

/* 关注列表 */
.rail-watch{
  padding:14px;
  border-radius:var(--r-md);
  background:linear-gradient(165deg,rgba(30,39,69,.75),rgba(18,26,51,.55));
  border:1px solid var(--line);
}
.rail-watch .rail-label{margin-bottom:6px}
.watch-count{display:flex;align-items:baseline;gap:7px}
.watch-num{
  font-size:30px;
  font-weight:700;
  line-height:1;
  color:var(--amber);
  text-shadow:0 0 22px rgba(255,194,75,.4);
}
.watch-unit{font-size:12px;color:var(--mist);letter-spacing:.08em}
.watch-note{
  margin-top:8px;
  font-size:11.5px;
  line-height:1.6;
  color:var(--mist);
}

.rail-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px dashed rgba(154,169,199,.22);
}
.rail-foot-line{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--mist);
  line-height:1.9;
}

/* ---------- 6. Footer ---------- */
.foot{
  position:relative;
  margin-top:clamp(52px,7vw,104px);
  background:linear-gradient(180deg,#0E1530 0%,#0B1020 100%);
  border-top:1px solid var(--line);
}
.foot::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(63,240,214,.5),rgba(255,79,163,.35),transparent);
}

.foot-inner{
  width:100%;
  max-width:var(--wrap-max);
  margin-left:auto;
  margin-right:auto;
  padding:clamp(36px,5vw,64px) clamp(16px,3.4vw,44px) clamp(26px,3.4vw,40px);
  display:grid;
  grid-template-columns:1.15fr 1fr 1.5fr 1.15fr;
  gap:clamp(22px,3vw,48px);
}

.foot-col{min-width:0}
.foot-brand{
  display:inline-block;
  font-family:var(--font-head);
  font-size:20px;
  font-weight:850;
  letter-spacing:-.02em;
  color:var(--white);
  margin-bottom:10px;
}
.foot-brand:hover{color:var(--cyan)}

.foot-title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:400;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
  margin-bottom:12px;
}

.foot-list{display:flex;flex-direction:column;gap:8px}
.foot-list a{
  font-size:14px;
  color:var(--mist);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.foot-list a:hover{color:var(--cyan);padding-left:5px}
.foot-list-plain li{
  font-size:14px;
  line-height:1.72;
  color:var(--mist);
  word-break:break-word;
}
.foot-list-plain .mono{color:rgba(234,242,255,.9);font-size:13.5px}

.foot-line{
  font-size:12.5px;
  line-height:1.85;
  color:var(--mist);
  margin-top:8px;
}
.foot-col-brand .foot-line{font-family:var(--font-mono);letter-spacing:.06em}

.foot-base{
  border-top:1px solid var(--line);
  padding:16px clamp(16px,3.4vw,44px) 22px;
  max-width:var(--wrap-max);
  margin-left:auto;
  margin-right:auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
}
.foot-base-line{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--mist);
}

/* ---------- 7. 通用组件 ---------- */
.card{
  position:relative;
  padding:clamp(18px,2vw,24px);
  border-radius:var(--r-lg);
  background:linear-gradient(168deg,rgba(30,39,69,.72),rgba(18,26,51,.7));
  border:1px solid var(--line);
  overflow:hidden;
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.card::before{
  content:"";
  position:absolute;
  top:0;
  left:14%;
  right:14%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(63,240,214,.55),transparent);
  opacity:.6;
  pointer-events:none;
}
.card:hover{
  border-color:rgba(63,240,214,.34);
  transform:translateY(-3px);
  box-shadow:var(--shadow-deep);
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  border:1px solid currentColor;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  line-height:1.5;
  white-space:nowrap;
}
.chip--cyan{color:var(--cyan);background:rgba(63,240,214,.09)}
.chip--magenta{color:var(--magenta);background:rgba(255,79,163,.1)}
.chip--amber{color:var(--amber);background:rgba(255,194,75,.1)}
.chip--alert{color:var(--alert);background:rgba(255,122,69,.1)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--font-head);
  font-weight:800;
  font-size:15px;
  line-height:1.2;
  transition:transform .22s var(--ease),box-shadow .28s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),#25C8B6);
  color:#04191A;
  box-shadow:0 14px 34px -16px rgba(63,240,214,.9);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 44px -18px rgba(63,240,214,1)}
.btn-ghost{
  border-color:rgba(234,242,255,.24);
  color:var(--white);
}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}

.metric{display:flex;flex-direction:column;gap:2px}
.metric-num{
  font-family:var(--font-mono);
  font-feature-settings:"tnum" 1,"zero" 1;
  font-size:clamp(28px,3.4vw,42px);
  font-weight:700;
  line-height:1.05;
  letter-spacing:-.02em;
  color:var(--amber);
}
.metric-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}

/* ---------- 8. 图片容器 ---------- */
.media{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16/10;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  isolation:isolate;
  background-color:#101833;
  background-image:
    radial-gradient(120% 92% at 14% 8%,rgba(63,240,214,.22),transparent 62%),
    radial-gradient(96% 84% at 88% 86%,rgba(255,79,163,.2),transparent 64%),
    linear-gradient(158deg,#182347 0%,#0B1020 100%);
}
.media > img,
.media > video{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:repeating-linear-gradient(180deg,rgba(234,242,255,.05) 0 1px,transparent 1px 3px);
  opacity:.7;
}
.media--wide{aspect-ratio:16/9}
.media--card{aspect-ratio:4/3}
.media--tall{aspect-ratio:3/4}

/* ---------- 9. 显现与返回顶部 ---------- */
.reveal{opacity:1}
html.js .reveal{opacity:0;transform:translateY(8px)}
html.js .reveal.is-in{
  opacity:1;
  transform:none;
  transition:opacity .35s var(--ease),transform .35s var(--ease);
}

.to-top{
  position:fixed;
  right:22px;
  bottom:26px;
  z-index:70;
  width:54px;
  height:54px;
  padding:0;
  border:0;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:conic-gradient(var(--cyan) calc(var(--p,0) * 1%),rgba(154,169,199,.18) 0);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease);
}
.to-top::before{
  content:"";
  position:absolute;
  inset:3px;
  border-radius:50%;
  background:linear-gradient(160deg,#17213F,#0B1020);
  box-shadow:inset 0 0 0 1px rgba(63,240,214,.26);
}
.to-top::after{
  content:"";
  position:relative;
  width:11px;
  height:11px;
  border-left:2px solid var(--cyan);
  border-top:2px solid var(--cyan);
  border-radius:2px;
  transform:translateY(3px) rotate(45deg);
}
.to-top[data-visible]{
  opacity:1;
  visibility:visible;
  transform:none;
}
.to-top:hover::before{box-shadow:inset 0 0 0 1px rgba(63,240,214,.7)}

/* ---------- 10. 响应式 ---------- */
@media (max-width:1200px){
  .foot-inner{grid-template-columns:1.2fr 1fr 1.4fr;grid-template-areas:"brand nav contact" "brand legal legal";}
  .foot-col-brand{grid-area:brand}
  .foot-col:nth-child(2){grid-area:nav}
  .foot-col:nth-child(3){grid-area:contact}
  .foot-col:nth-child(4){grid-area:legal}
}

@media (max-width:1024px){
  body{padding-left:0;padding-bottom:var(--bar-h)}

  .rail{
    top:auto;
    left:0;
    right:0;
    bottom:0;
    width:auto;
    border-right:0;
    border-top:1px solid rgba(63,240,214,.22);
    background:rgba(11,16,32,.94);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
  }
  .rail::after{display:none}

  .rail-head{
    height:var(--bar-h);
    padding:0 16px;
    border-bottom:0;
    background:linear-gradient(180deg,rgba(14,21,48,.96),rgba(11,16,32,.96));
  }

  .rail-toggle{
    display:inline-flex;
    align-items:center;
    gap:9px;
    padding:9px 14px;
    border-radius:999px;
    border:1px solid rgba(63,240,214,.34);
    background:rgba(63,240,214,.08);
    color:var(--cyan);
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:.12em;
    transition:background .24s var(--ease),border-color .24s var(--ease);
  }
  .rail-toggle-bars{display:grid;gap:4px;width:18px}
  .rail-toggle-bars i{
    display:block;
    height:2px;
    border-radius:2px;
    background:var(--cyan);
    transition:transform .3s var(--ease),opacity .2s var(--ease);
  }
  .rail[data-open] .rail-toggle-bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .rail[data-open] .rail-toggle-bars i:nth-child(2){opacity:0}
  .rail[data-open] .rail-toggle-bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .rail[data-open] .rail-toggle{background:rgba(63,240,214,.18);border-color:rgba(63,240,214,.6)}

  .rail-panel{
    position:fixed;
    left:0;
    right:0;
    bottom:var(--bar-h);
    z-index:1;
    flex:none;
    max-height:calc(86vh - var(--bar-h));
    overflow-y:auto;
    padding:20px 18px 26px;
    border-radius:var(--r-lg) var(--r-lg) 0 0;
    border-top:1px solid rgba(63,240,214,.26);
    background:linear-gradient(180deg,#131C3A 0%,#0B1020 100%);
    box-shadow:0 -34px 74px -24px rgba(0,0,0,.9);
    transform:translateY(calc(100% + var(--bar-h) + 34px));
    transition:transform .42s var(--ease);
  }
  .rail[data-open] .rail-panel{transform:translateY(0)}

  .rail-nav-list{gap:2px}
  .rail-nav-link{padding:13px 14px;font-size:15.5px}

  .to-top{
    right:14px;
    bottom:calc(var(--bar-h) + 16px);
    width:48px;
    height:48px;
  }
}

@media (max-width:860px){
  .foot-inner{
    grid-template-columns:1fr 1fr;
    grid-template-areas:none;
  }
  .foot-col-brand,
  .foot-col:nth-child(2),
  .foot-col:nth-child(3),
  .foot-col:nth-child(4){grid-area:auto}
  .foot-col-brand{grid-column:1 / -1}
}

@media (max-width:620px){
  body{font-size:15px}
  .foot-inner{grid-template-columns:1fr}
  .foot-base{flex-direction:column;align-items:flex-start}
  .media--card{aspect-ratio:4/3}
  .section{padding-block:clamp(34px,8vw,56px)}
  .card{border-radius:var(--r-md)}
}

/* ---------- 11. 无动画偏好 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js .reveal{opacity:1;transform:none}
  .to-top{transition:none}
}

@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}