/* ==========================================================================
   196体育入口 · 共享样式 /assets/site.css
   夜赛深蓝画布 + 冲击橙指向 + 荧光绿实时信号；切角、斜线、等宽索引
   ========================================================================== */

:root{
  --sd-night:#0B1B34;
  --sd-room:#142A4C;
  --sd-orange:#FF6A1A;
  --sd-gold:#FFC46B;
  --sd-lime:#B6FF3C;
  --sd-cyan:#35D6E8;
  --sd-magenta:#FF3D7F;
  --sd-mist:#E8EDF5;
  --sd-index:#93A2BC;
  --sd-ink:#050B16;
  --sd-line:rgba(147,162,188,.26);
  --sd-line-strong:rgba(147,162,188,.5);
  --sd-cut:18px;
  --sd-max:1360px;
  --sd-gutter:clamp(16px,4vw,56px);
  --sd-header-h:76px;
  --sd-ease:cubic-bezier(.22,.61,.36,1);
  --sd-font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sd-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:dark;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
a{color:inherit;text-decoration:none}
::selection{background:var(--sd-orange);color:#08111F}

body{
  min-height:100vh;
  background:var(--sd-night);
  color:var(--sd-mist);
  font-family:var(--sd-font);
  font-size:17px;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
:focus-visible{outline:2px solid var(--sd-lime);outline-offset:3px}
.sd-sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- 主体偏移 ---------- */
#main-content{display:block;padding-top:var(--sd-main-top,var(--sd-header-h))}

/* ---------- 跳转链接 ---------- */
.sd-skip{
  position:fixed;left:var(--sd-gutter);top:-120px;z-index:200;
  padding:12px 20px;background:var(--sd-orange);color:#08111F;
  font-size:14px;font-weight:800;letter-spacing:.04em;
  transition:top .2s var(--sd-ease);
}
.sd-skip:focus{top:14px}

/* ==========================================================================
   头部
   ========================================================================== */
.sd-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:linear-gradient(180deg,rgba(5,11,22,.86) 0%,rgba(5,11,22,.46) 58%,rgba(5,11,22,0) 100%);
  transition:background .3s var(--sd-ease),box-shadow .3s var(--sd-ease);
}
.sd-header::before{
  content:"";position:fixed;inset:0;z-index:0;
  background:rgba(5,11,22,.68);
  opacity:0;pointer-events:none;
  transition:opacity .25s var(--sd-ease);
}
.sd-header[data-scrolled]{
  background:var(--sd-night);
  box-shadow:0 1px 0 var(--sd-line),0 22px 44px -34px rgba(0,0,0,.95);
}
.sd-header__progress{
  position:absolute;left:0;right:0;bottom:0;height:2px;z-index:4;
  background:linear-gradient(90deg,var(--sd-orange),var(--sd-gold) 48%,var(--sd-lime));
  transform:scaleX(0);transform-origin:left center;
}
.sd-header__inner{
  position:relative;z-index:3;
  max-width:var(--sd-max);margin:0 auto;
  min-height:var(--sd-header-h);
  padding:10px var(--sd-gutter);
  display:flex;align-items:center;gap:clamp(14px,2.2vw,32px);
}

/* 品牌 */
.sd-brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.sd-brand:focus-visible{outline:none}
.sd-brand:focus-visible .sd-brand__name{color:var(--sd-lime);text-decoration:underline}
.sd-brand__mark{
  font-family:var(--sd-mono);font-weight:600;font-size:19px;line-height:1;
  letter-spacing:.02em;color:#08111F;background:var(--sd-orange);
  padding:8px 11px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
}
.sd-brand__text{display:flex;flex-direction:column;line-height:1.18}
.sd-brand__name{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--sd-mist);transition:color .2s}
.sd-brand__tag{font-family:var(--sd-mono);font-size:10px;letter-spacing:.12em;color:var(--sd-index)}

/* 导航 */
.sd-nav{flex:1 1 auto;display:flex;justify-content:center}
.sd-nav__list{display:flex;align-items:center;gap:clamp(8px,1.3vw,20px);flex-wrap:nowrap}
.sd-nav__item{position:relative}
.sd-nav__link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:9px 2px;font-size:14px;font-weight:500;color:var(--sd-mist);
  white-space:nowrap;transition:color .2s var(--sd-ease);
}
.sd-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--sd-orange);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .25s var(--sd-ease);
}
.sd-nav__link:hover{color:var(--sd-gold)}
.sd-nav__link:hover::after{transform:scaleX(1)}
.sd-nav__link[aria-current="page"]{color:#FFFFFF;font-weight:700}
.sd-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.sd-nav__index{font-family:var(--sd-mono);font-size:10px;letter-spacing:.14em;color:var(--sd-index)}
.sd-nav__link[aria-current="page"] .sd-nav__index{color:var(--sd-orange)}
.sd-nav__cta{display:none}

/* 头部动作区 */
.sd-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto}

/* 汉堡 */
.sd-burger{
  display:none;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;
  padding:9px 12px;border:1px solid var(--sd-line);color:var(--sd-mist);
  transition:border-color .2s var(--sd-ease),color .2s var(--sd-ease);
}
.sd-burger:hover{border-color:var(--sd-orange);color:var(--sd-gold)}
.sd-burger__bars{display:grid;gap:4px;width:20px}
.sd-burger__bar{display:block;height:2px;background:currentColor;transition:transform .25s var(--sd-ease),opacity .2s var(--sd-ease)}
.sd-burger__label{font-family:var(--sd-mono);font-size:11px;letter-spacing:.14em;color:var(--sd-index)}

/* ==========================================================================
   按钮
   ========================================================================== */
.sd-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;font-size:14px;font-weight:700;line-height:1;
  letter-spacing:.02em;border:1px solid transparent;white-space:nowrap;
  transition:background .2s var(--sd-ease),color .2s var(--sd-ease),
             border-color .2s var(--sd-ease),transform .2s var(--sd-ease);
}
.sd-btn--primary{background:var(--sd-orange);color:#08111F}
.sd-btn--primary:hover{background:var(--sd-gold);transform:translateY(-2px)}
.sd-btn--ghost{background:transparent;border-color:var(--sd-line-strong);color:var(--sd-mist)}
.sd-btn--ghost:hover{border-color:var(--sd-lime);color:var(--sd-lime)}
.sd-btn--line{padding:12px 2px;background:none;color:var(--sd-gold)}
.sd-btn--line::after{content:"→";transition:transform .2s var(--sd-ease)}
.sd-btn--line:hover{color:var(--sd-cyan)}
.sd-btn--line:hover::after{transform:translateX(4px)}

/* ==========================================================================
   版式容器
   ========================================================================== */
.sd-container{width:100%;max-width:var(--sd-max);margin:0 auto;padding-inline:var(--sd-gutter)}
.sd-container--narrow{max-width:820px}
.sd-section{padding-block:clamp(40px,7vw,96px)}
.sd-section--tight{padding-block:clamp(22px,3.5vw,52px)}
.sd-grid{display:grid;gap:clamp(20px,3vw,40px)}
.sd-grid--editorial{grid-template-columns:3fr 9fr}
.sd-grid--split{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center}

.sd-display{font-size:clamp(42px,7vw,112px);font-weight:200;line-height:1.02;letter-spacing:-.02em;color:var(--sd-mist)}
.sd-display strong{font-weight:800}
.sd-h2{font-size:clamp(26px,3.4vw,56px);font-weight:300;line-height:1.14;letter-spacing:-.01em}
.sd-h2 strong{font-weight:800}
.sd-h3{font-size:clamp(18px,2vw,28px);font-weight:700;line-height:1.3}
.sd-lead{font-size:clamp(17px,1.6vw,20px);line-height:1.7;color:var(--sd-mist);opacity:.92;max-width:62ch}
.sd-text{font-size:17px;line-height:1.75;color:var(--sd-mist)}
.sd-muted{color:var(--sd-index)}
.sd-link{color:var(--sd-gold);border-bottom:1px solid rgba(255,196,107,.45);transition:color .2s,border-color .2s}
.sd-link:hover{color:var(--sd-cyan);border-color:var(--sd-cyan)}

.sd-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--sd-mono);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sd-cyan);
}
.sd-eyebrow::before{content:"";width:26px;height:1px;background:var(--sd-orange);flex:0 0 auto}
.sd-index{font-family:var(--sd-mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--sd-index)}
.sd-mono{font-family:var(--sd-mono);font-variant-numeric:tabular-nums}
.sd-num{font-family:var(--sd-mono);font-variant-numeric:tabular-nums;color:var(--sd-gold)}
.sd-stat{
  font-family:var(--sd-mono);font-weight:600;font-variant-numeric:tabular-nums;
  font-size:clamp(28px,5vw,56px);line-height:1;color:var(--sd-orange);
}
.sd-note{
  font-size:13px;line-height:1.7;color:var(--sd-index);
  border-left:1px solid var(--sd-line);padding-left:14px;
}

/* ---------- 标签 ---------- */
.sd-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;font-family:var(--sd-mono);font-size:11px;letter-spacing:.12em;
  border:1px solid var(--sd-line);color:var(--sd-gold);
}
.sd-tag--live{color:var(--sd-lime);border-color:rgba(182,255,60,.5)}
.sd-tag--live::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--sd-lime);
  animation:sd-pulse 2s var(--sd-ease) infinite;
}
.sd-tag--change{color:var(--sd-magenta);border-color:rgba(255,61,127,.45)}
@keyframes sd-pulse{
  0%{box-shadow:0 0 0 0 rgba(182,255,60,.6)}
  70%{box-shadow:0 0 0 8px rgba(182,255,60,0)}
  100%{box-shadow:0 0 0 0 rgba(182,255,60,0)}
}

/* ---------- 分隔与面板 ---------- */
.sd-slash{height:18px;background:repeating-linear-gradient(115deg,rgba(255,106,26,.55) 0 1px,transparent 1px 12px)}
.sd-rule{height:1px;border:0;background:repeating-linear-gradient(90deg,var(--sd-line) 0 8px,transparent 8px 16px)}
.sd-panel{
  position:relative;background:var(--sd-room);
  padding:clamp(20px,3vw,32px);
  clip-path:polygon(0 0,calc(100% - var(--sd-cut)) 0,100% var(--sd-cut),100% 100%,0 100%);
}
.sd-panel--flat{clip-path:none;background:transparent;border-left:2px solid var(--sd-orange);padding-left:clamp(14px,2vw,22px)}

/* ---------- 面包屑 ---------- */
.sd-breadcrumb{padding-block:14px;font-family:var(--sd-mono);font-size:12px;letter-spacing:.14em;color:var(--sd-index)}
.sd-breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.sd-breadcrumb li{display:flex;align-items:center;gap:8px}
.sd-breadcrumb li+li::before{content:"/";color:rgba(147,162,188,.6)}
.sd-breadcrumb a{color:var(--sd-index);transition:color .2s}
.sd-breadcrumb a:hover{color:var(--sd-cyan)}
.sd-breadcrumb [aria-current="page"]{color:var(--sd-mist)}

/* ---------- 分段控件 ---------- */
.sd-tabs{margin-block:0 clamp(16px,2.5vw,28px)}
.sd-tabs__list{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--sd-line)}
.sd-tab{
  padding:11px 16px;font-size:14px;font-weight:700;color:var(--sd-index);
  border-bottom:2px solid transparent;margin-bottom:-1px;
  transition:color .2s var(--sd-ease),border-color .2s var(--sd-ease);
}
.sd-tab:hover{color:var(--sd-gold)}
.sd-tab[aria-selected="true"]{color:var(--sd-mist);border-bottom-color:var(--sd-orange)}
.sd-tabpanel{padding-top:clamp(14px,2vw,24px)}
.sd-tabpanel[hidden]{display:none}
.sd-tabpanel:focus-visible{outline:2px solid var(--sd-lime);outline-offset:4px}

/* ---------- 数据表 ---------- */
.sd-table-wrap{overflow-x:auto;border-top:1px solid var(--sd-line)}
.sd-table{width:100%;min-width:520px;font-size:14px}
.sd-table caption{
  text-align:left;padding-bottom:10px;
  font-family:var(--sd-mono);font-size:12px;letter-spacing:.18em;color:var(--sd-index);
}
.sd-table th,.sd-table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--sd-line)}
.sd-table th{
  font-family:var(--sd-mono);font-size:12px;letter-spacing:.12em;font-weight:600;
  color:var(--sd-cyan);background:rgba(20,42,76,.55);white-space:nowrap;
}
.sd-table tbody tr{transition:background .2s var(--sd-ease)}
.sd-table tbody tr:hover{background:rgba(20,42,76,.55)}

/* ---------- 时间轴 ---------- */
.sd-timeline{position:relative;padding-left:26px}
.sd-timeline::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,var(--sd-orange),var(--sd-cyan),rgba(53,214,232,0));
}
.sd-timeline__item{position:relative;padding-bottom:22px}
.sd-timeline__item::before{
  content:"";position:absolute;left:-26px;top:8px;width:9px;height:9px;
  background:var(--sd-night);border:2px solid var(--sd-orange);transform:rotate(45deg);
}
.sd-timeline__time{font-family:var(--sd-mono);font-size:12px;letter-spacing:.12em;color:var(--sd-lime)}

/* ---------- 图片容器 ---------- */
.sd-media{
  position:relative;overflow:hidden;margin:0;background:var(--sd-room);
  clip-path:polygon(0 0,calc(100% - var(--sd-cut)) 0,100% var(--sd-cut),100% 100%,0 100%);
}
.sd-media img{width:100%;height:100%;object-fit:cover;filter:saturate(1.05) contrast(1.06)}
.sd-media--wide{aspect-ratio:21/9}
.sd-media--16x9{aspect-ratio:16/9}
.sd-media--4x3{aspect-ratio:4/3}
.sd-media--square{aspect-ratio:1/1}
.sd-media--tall{aspect-ratio:3/4}
.sd-media__caption{
  position:absolute;left:0;right:0;bottom:0;padding:12px 16px;
  background:linear-gradient(0deg,rgba(5,11,22,.92),rgba(5,11,22,0));
  font-family:var(--sd-mono);font-size:11px;letter-spacing:.12em;color:var(--sd-mist);
}
.sd-media--ratio-auto{aspect-ratio:auto}

/* ---------- 显现 ---------- */
[data-reveal]{opacity:0;transform:translateY(8px);transition:opacity .5s var(--sd-ease),transform .5s var(--sd-ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ==========================================================================
   页脚
   ========================================================================== */
.sd-footer{
  position:relative;margin-top:clamp(48px,8vw,120px);
  background:var(--sd-ink);border-top:1px solid var(--sd-line);color:var(--sd-mist);
}
.sd-footer__band{
  height:4px;
  background:repeating-linear-gradient(115deg,
    var(--sd-orange) 0 22px,transparent 22px 34px,
    var(--sd-lime) 34px 40px,transparent 40px 62px);
  opacity:.9;
}
.sd-footer__inner{
  max-width:var(--sd-max);margin:0 auto;
  padding:clamp(34px,5vw,72px) var(--sd-gutter) 26px;
  display:grid;grid-template-columns:minmax(220px,1.05fr) 2fr;
  gap:clamp(26px,4vw,64px);
}
.sd-footer__brand{display:flex;flex-direction:column;gap:10px}
.sd-footer__logo{font-size:26px;font-weight:900;letter-spacing:-.01em}
.sd-footer__tag{font-family:var(--sd-mono);font-size:12px;letter-spacing:.12em;color:var(--sd-gold)}
.sd-footer__coords{font-family:var(--sd-mono);font-size:11px;letter-spacing:.14em;color:var(--sd-index)}
.sd-footer__cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.sd-footer__col-title{
  margin-bottom:14px;font-family:var(--sd-mono);font-size:12px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--sd-cyan);
}
.sd-footer__list{display:flex;flex-direction:column;gap:10px}
.sd-footer__link{
  display:inline-block;font-size:15px;color:var(--sd-mist);opacity:.86;
  border-bottom:1px solid transparent;
  transition:color .2s var(--sd-ease),transform .2s var(--sd-ease),border-color .2s var(--sd-ease);
}
.sd-footer__link:hover{color:var(--sd-orange);transform:translateX(3px)}
.sd-footer__contact{
  max-width:var(--sd-max);margin:0 auto;
  padding:22px var(--sd-gutter) 24px;
  display:flex;flex-direction:column;gap:8px;
  border-top:1px solid var(--sd-line);
}
.sd-footer__contact-line{font-family:var(--sd-mono);font-size:13px;line-height:1.7;color:var(--sd-gold);word-break:break-word}
.sd-footer__note{max-width:72ch;font-size:13px;line-height:1.7;color:var(--sd-index)}
.sd-footer__legal{
  max-width:var(--sd-max);margin:0 auto;
  padding:16px var(--sd-gutter) 34px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  border-top:1px solid var(--sd-line);
  font-family:var(--sd-mono);font-size:12px;letter-spacing:.1em;color:var(--sd-index);
}
.sd-footer__legal-item{margin:0}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1240px){
  .sd-brand__tag{display:none}
}
@media (max-width:1080px){
  :root{--sd-header-h:66px}
  .sd-actions{display:none}
  .sd-burger{display:inline-flex}
  .sd-header[data-open]::before{opacity:1}
  .sd-nav{
    position:fixed;top:var(--sd-header-h);right:0;bottom:0;left:auto;
    width:min(360px,88vw);z-index:2;
    display:block;
    background:var(--sd-ink);border-left:1px solid var(--sd-line);
    padding:26px var(--sd-gutter) 44px;overflow-y:auto;
    transform:translateX(102%);
    transition:transform .3s var(--sd-ease);
  }
  .sd-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .sd-nav__item{border-bottom:1px solid var(--sd-line)}
  .sd-nav__link{display:flex;align-items:baseline;padding:16px 4px;font-size:19px;font-weight:700}
  .sd-nav__link::after{display:none}
  .sd-nav__link[aria-current="page"]{color:var(--sd-orange)}
  .sd-nav__index{font-size:11px}
  .sd-nav__cta{display:flex;flex-direction:column;gap:10px;margin-top:28px}
  .sd-nav__cta .sd-btn{justify-content:center}
  .sd-header[data-open] .sd-nav{transform:translateX(0)}
  .sd-header[data-open] .sd-burger__bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .sd-header[data-open] .sd-burger__bar:nth-child(2){opacity:0}
  .sd-header[data-open] .sd-burger__bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .sd-grid--editorial,.sd-grid--split{grid-template-columns:1fr}
}
@media (max-width:900px){
  body{font-size:16px}
  .sd-footer__inner{grid-template-columns:1fr}
  .sd-footer__cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sd-footer__legal{justify-content:flex-start}
}
@media (max-width:420px){
  :root{--sd-cut:12px}
  .sd-footer__cols{grid-template-columns:1fr}
  .sd-footer__logo{font-size:22px}
}

/* ==========================================================================
   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;
  }
  [data-reveal]{opacity:1;transform:none}
  .sd-header__progress{transition:none}
}