/* =========================================================
   云开赛场 / TEAMSPRINT — 共享样式层 /assets/site.css
   夜间数据指挥室：深海底色 + 精密网格 + 荧光青 / 珊瑚橙
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;padding:0;cursor:pointer;}
a{color:var(--cyan);text-decoration:none;}
a:hover{color:#7CF7E4;}

/* ---------- 2. 变量 ---------- */
:root{
  --ink-900:#05101F;
  --ink-800:#0B1F36;
  --line:#1B3A57;
  --line-soft:rgba(27,58,87,.55);
  --cyan:#35F2D6;
  --coral:#FF6B4A;
  --ice:#E8F3FF;
  --muted:#93A9C4;
  --glass:rgba(255,255,255,.08);
  --teal:#0E7C6B;
  --moss:#4E6B7C;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --font-score:"Barlow Condensed","Oswald","Arial Narrow",system-ui,sans-serif;

  --w-page:min(100% - 32px,1320px);
  --header-h:64px;
  --radius:3px;
  --ease:.24s ease;
}

/* ---------- 3. 基底与纹理 ---------- */
body{
  position:relative;
  min-height:100vh;
  background-color:var(--ink-900);
  background-image:linear-gradient(180deg,#061424 0%,#05101F 44%,#030B15 100%);
  color:var(--ice);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.014) 0 1px,transparent 1px 3px),
    linear-gradient(to right,rgba(27,58,87,.40) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(27,58,87,.40) 1px,transparent 1px);
  background-size:auto,32px 32px,32px 32px;
  opacity:.9;
}
#main-content{position:relative;z-index:1;display:block;min-height:50vh;}
html.nav-open,
html.nav-open body{overflow:hidden;}

/* ---------- 4. 中文排版 ---------- */
h1,h2,h3,h4{font-weight:700;line-height:1.25;letter-spacing:.01em;color:var(--ice);}
h1{font-size:clamp(28px,5.2vw,40px);}
h2{font-size:clamp(22px,3.4vw,30px);}
h3{font-size:clamp(18px,2.4vw,22px);}
h4{font-size:16px;}
p{max-width:42em;}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;}
.eyebrow{
  display:block;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--moss);
  text-transform:uppercase;
}
.lead{font-size:clamp(16px,1.6vw,18px);line-height:1.7;color:#D6E5F6;max-width:40em;}
.prose{max-width:38em;font-size:16px;line-height:1.75;color:#D8E6F7;}
.prose p+p{margin-top:1em;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- 5. 布局工具 ---------- */
.container{width:var(--w-page);margin-inline:auto;}
.main-offset{padding-top:calc(var(--header-h) + 40px);}
.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
@media (min-width:901px){
  .col-2{grid-column:span 2;}
  .col-3{grid-column:span 3;}
  .col-5{grid-column:span 5;}
  .col-7{grid-column:span 7;}
  .col-8{grid-column:span 8;}
  .col-12{grid-column:span 12;}
}
@media (max-width:900px){
  .col-2,.col-3,.col-5,.col-7,.col-8,.col-12{grid-column:1 / -1;}
}

/* ---------- 6. 跳转链接与焦点 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-80px;
  z-index:120;
  padding:10px 18px;
  background:var(--cyan);
  color:#03211B;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  border-radius:2px;
  transition:top var(--ease);
}
.skip-link:focus{top:12px;color:#03211B;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
:focus:not(:focus-visible){outline:none;}

/* ---------- 7. 头部 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .26s ease,border-color .26s ease,backdrop-filter .26s ease;
}
.site-header[data-state="solid"]{
  background:rgba(5,16,31,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.scroll-progress{
  position:absolute;
  left:0;right:0;top:0;
  height:2px;
  background:linear-gradient(90deg,var(--teal),var(--cyan));
  transform:scaleX(0);
  transform-origin:0 50%;
  pointer-events:none;
  z-index:2;
}
.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  width:var(--w-page);
  margin-inline:auto;
  min-height:var(--header-h);
  padding-block:8px;
}
.brand{
  display:flex;
  flex-direction:column;
  gap:1px;
  flex:0 0 auto;
  color:var(--ice);
  text-decoration:none;
}
.brand:hover{color:var(--ice);}
.brand-name{font-size:18px;font-weight:700;line-height:1.1;letter-spacing:.08em;}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1.2;
  letter-spacing:.24em;
  color:var(--muted);
}
.site-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-item{display:inline-flex;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:14px;
  font-weight:500;
  letter-spacing:.04em;
  color:#C3D6EC;
  text-decoration:none;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:1px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--ice);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link[aria-current="page"]{color:var(--cyan);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);height:2px;}

.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.search-toggle{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-width:216px;
  padding:8px 12px;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
  background:var(--glass);
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  border-radius:2px;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.search-toggle:hover,
.search-toggle[aria-expanded="true"]{color:var(--ice);border-color:var(--cyan);}
.search-toggle-icon{
  position:relative;
  flex:0 0 auto;
  width:13px;height:13px;
  border:1.5px solid currentColor;
  border-radius:50%;
}
.search-toggle-icon::after{
  content:"";
  position:absolute;
  right:-4px;bottom:-3px;
  width:6px;height:1.5px;
  background:currentColor;
  transform:rotate(45deg);
}
.search-toggle-label{white-space:nowrap;}

.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  font-size:12px;
  letter-spacing:.1em;
  color:var(--ice);
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  border-radius:2px;
}
.nav-toggle-bars{position:relative;display:inline-block;width:18px;height:12px;}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;left:0;right:0;
  height:1.5px;
  background:var(--cyan);
  transition:transform .22s ease,top .22s ease;
}
.nav-toggle-bars::before{top:2px;}
.nav-toggle-bars::after{top:8px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{top:5px;transform:rotate(-45deg);}
.nav-toggle-text{font-family:var(--font-mono);}

/* 搜索面板 */
.search-panel{
  position:absolute;
  left:0;right:0;top:100%;
  background:rgba(5,16,31,.95);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.search-panel[hidden]{display:none;}
.search-panel-inner{
  display:grid;
  gap:10px;
  width:var(--w-page);
  margin-inline:auto;
  padding:22px 0 26px;
}
.search-label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--moss);
}
.search-input{
  width:100%;
  padding:13px 16px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--ice);
  font-family:var(--font-mono);
  font-size:15px;
  letter-spacing:.04em;
}
.search-input::placeholder{color:var(--moss);}
.search-input:focus{border-color:var(--cyan);outline:none;}
.search-hint{font-size:13px;color:var(--muted);max-width:none;}
.search-hint a{text-decoration:underline;text-underline-offset:3px;}

/* ---------- 8. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  line-height:1.4;
  border:1px solid transparent;
  border-radius:2px;
  cursor:pointer;
  text-decoration:none;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--cyan);color:#03211B;}
.btn--primary:hover{background:#6BF7E2;color:#03211B;}
.btn--ghost{border-color:var(--line);color:var(--ice);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--coral{border-color:rgba(255,107,74,.6);color:var(--coral);}
.btn--coral:hover{border-color:var(--coral);background:rgba(255,107,74,.12);color:var(--coral);}

/* ---------- 9. 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--cyan);}
.crumbs__sep{color:var(--moss);}
.crumbs [aria-current="page"]{color:var(--ice);}

/* ---------- 10. 章节 ---------- */
.section{
  position:relative;
  padding:clamp(40px,6vw,72px) 0;
  border-top:1px solid var(--line-soft);
}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 20px;
  margin-bottom:28px;
}
.section__index{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  color:var(--moss);
  transition:color .26s ease;
}
.section__title{
  font-size:clamp(20px,3vw,28px);
  font-weight:700;
  color:var(--muted);
  transition:color .26s ease;
}
.section__summary{
  flex:1 1 260px;
  max-width:46ch;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}
.section.is-active .section__index{color:var(--cyan);}
.section.is-active .section__title{color:var(--ice);}

/* ---------- 11. 卡片 / 标签 ---------- */
.card{
  position:relative;
  padding:20px;
  background:var(--glass);
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  border-radius:var(--radius);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
}
.card--accent{border-top-color:var(--cyan);}
.card--alert{border-top-color:var(--coral);}
.card__label{
  display:block;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--muted);
  text-transform:uppercase;
}
.card__title{margin:6px 0 8px;font-size:17px;font-weight:700;color:var(--ice);}
.card__meta{font-size:13px;line-height:1.7;color:var(--muted);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 8px;
  font-size:11px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--muted);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:2px;
}
.tag--key{color:var(--cyan);border-color:rgba(53,242,214,.42);}
.tag--live{color:var(--coral);border-color:rgba(255,107,74,.45);}
.tag--up{color:#5FE3C9;border-color:rgba(14,124,107,.75);}
.tag--muted{color:var(--moss);border-color:rgba(78,107,124,.6);}

/* ---------- 12. 高密度索引行 ---------- */
.index-list{border-top:1px solid var(--line-soft);}
.index-row{
  display:grid;
  grid-template-columns:92px 1fr auto;
  align-items:center;
  gap:14px;
  min-height:52px;
  padding:10px 0;
  color:var(--ice);
  text-decoration:none;
  border-bottom:1px solid var(--line-soft);
  transition:background-color var(--ease);
}
.index-row:hover{background:rgba(53,242,214,.05);color:var(--ice);}
.index-row__time{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.index-row__title{font-size:15px;font-weight:500;}
.index-row__tag{
  justify-self:end;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--muted);
}

/* ---------- 13. 比分与数据图形 ---------- */
.score{
  display:inline-block;
  font-family:var(--font-score);
  font-weight:600;
  font-size:clamp(48px,12vw,132px);
  line-height:.92;
  letter-spacing:-.01em;
  color:var(--ice);
  font-variant-numeric:tabular-nums;
}
.score--live{color:var(--cyan);}
.score__sep{color:var(--moss);margin:0 .08em;}
.score.is-swap{animation:scoreSwap .16s ease;}
@keyframes scoreSwap{
  from{transform:translateY(6px);opacity:.4;}
  to{transform:translateY(0);opacity:1;}
}
.bar{
  position:relative;
  height:6px;
  background:rgba(27,58,87,.6);
  border-radius:1px;
  overflow:hidden;
}
.bar__fill{
  position:absolute;
  top:0;bottom:0;left:0;
  background:linear-gradient(90deg,var(--teal),var(--cyan));
}
.bar__fill--negative{background:linear-gradient(90deg,#8C3A26,var(--coral));}
.pulse{
  border:1px solid rgba(255,107,74,.5);
  animation:stoppagePulse 2s ease-in-out infinite;
}
@keyframes stoppagePulse{
  0%,100%{border-color:rgba(255,107,74,.26);}
  50%{border-color:rgba(255,107,74,.85);}
}

/* ---------- 14. 时间轴基础 ---------- */
.timeline{
  position:relative;
  overflow-x:auto;
  padding-bottom:16px;
  scrollbar-width:thin;
}
.timeline__track{
  position:relative;
  display:flex;
  gap:28px;
  min-width:max-content;
  padding-top:30px;
}
.timeline__track::before{
  content:"";
  position:absolute;
  left:0;right:0;top:14px;
  height:1px;
  background:var(--line);
}
.timeline__node{position:relative;min-width:184px;padding-top:14px;}
.timeline__node::before{
  content:"";
  position:absolute;
  top:-20px;left:0;
  width:7px;height:7px;
  background:var(--ink-900);
  border:1px solid var(--cyan);
  border-radius:50%;
}
.timeline__time{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted);
}
.timeline__title{margin-top:4px;font-size:15px;font-weight:600;color:var(--ice);}
.timeline__desc{font-size:13px;line-height:1.7;color:var(--muted);}

/* ---------- 15. 图片容器 ---------- */
.media{
  position:relative;
  overflow:hidden;
  background:linear-gradient(160deg,var(--ink-800),var(--ink-900));
  border-top:1px solid var(--line);
  border-left:1px solid var(--line);
  border-radius:var(--radius);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.05);
}
.media--16x9{aspect-ratio:16 / 9;}
.media--4x5{aspect-ratio:4 / 5;}
.media--21x9{aspect-ratio:21 / 9;}
.media__caption{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.6;
  color:var(--muted);
}
@media (max-width:600px){
  .media--21x9{aspect-ratio:16 / 9;}
}

/* ---------- 16. 手风琴 / 标签页（页面阶段可选调用） ---------- */
.accordion{border-top:1px solid var(--line-soft);}
.accordion__item{border-bottom:1px solid var(--line-soft);}
.accordion__trigger{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:16px 0;
  font-size:15px;
  font-weight:600;
  text-align:left;
  color:var(--ice);
  transition:color var(--ease);
}
.accordion__trigger:hover{color:var(--cyan);}
.accordion__trigger::after{
  content:"+";
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--cyan);
  transition:transform var(--ease);
}
.accordion__item.is-open .accordion__trigger::after{content:"–";transform:rotate(180deg);}
.accordion__panel{padding:0 0 18px;font-size:14px;line-height:1.8;color:var(--muted);}
.accordion__panel[hidden]{display:none;}

.tabs{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--line);}
.tab{
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--muted);
  border-bottom:2px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.tab:hover{color:var(--ice);}
.tab.is-active,
.tab[aria-selected="true"]{color:var(--cyan);border-bottom-color:var(--cyan);}
.tabpanel{padding-top:20px;}
.tabpanel[hidden]{display:none;}

/* ---------- 17. 滚动显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .28s ease,transform .28s ease;
}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 18. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(56px,8vw,96px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,31,54,.65),rgba(5,16,31,.96));
}
.footer-inner{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
  width:var(--w-page);
  margin-inline:auto;
  padding:34px 0 22px;
}
.footer-seg{min-width:0;}
.footer-brand{
  margin-bottom:10px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ice);
  max-width:none;
}
.footer-meta{
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:12px;
  line-height:1.7;
  letter-spacing:.04em;
  color:var(--muted);
  max-width:none;
}
.footer-icp{color:var(--moss);}
.footer-links{
  display:flex;
  flex-wrap:wrap;
  gap:8px 18px;
}
.footer-links a{
  font-size:13px;
  letter-spacing:.04em;
  color:var(--muted);
  text-decoration:none;
  transition:color var(--ease);
}
.footer-links a:hover{color:var(--cyan);}
.footer-cta{margin-top:12px;}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  align-items:center;
  width:var(--w-page);
  margin-inline:auto;
  padding:14px 0 26px;
  border-top:1px solid var(--line-soft);
}
.footer-copy,
.footer-note{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  color:var(--moss);
  max-width:none;
}
.footer-note{color:var(--muted);}

/* ---------- 19. 响应式 ---------- */
@media (max-width:1023px){
  .site-nav{
    position:fixed;
    top:var(--header-h);
    left:0;right:0;bottom:0;
    display:flex;
    flex-direction:column;
    justify-content:flex-start;
    padding:24px 20px 40px;
    background:rgba(5,16,31,.97);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s;
  }
  .site-nav[data-open]{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:none;
  }
  .nav-list{
    counter-reset:navidx;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    width:100%;
  }
  .nav-item{counter-increment:navidx;display:block;}
  .nav-link{
    display:block;
    width:100%;
    padding:16px 0;
    font-size:20px;
    font-weight:600;
    color:var(--ice);
    border-bottom:1px solid var(--line-soft);
  }
  .nav-link::before{
    content:counter(navidx,decimal-leading-zero);
    display:inline-block;
    min-width:34px;
    margin-right:12px;
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:.1em;
    color:var(--moss);
  }
  .nav-link::after{left:0;right:auto;width:0;bottom:10px;}
  .nav-link:hover::after{transform:scaleX(0);}
  .nav-link[aria-current="page"]{color:var(--cyan);}
  .nav-link[aria-current="page"]::after{transform:scaleX(0);}
  .nav-toggle{display:inline-flex;}
  .search-toggle{min-width:0;padding:8px 10px;}
  .search-toggle-label{display:none;}
}

@media (max-width:640px){
  :root{--header-h:60px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:9px;letter-spacing:.2em;}
  .nav-toggle-text{display:none;}
  .index-row{grid-template-columns:70px 1fr;}
  .index-row__tag{grid-column:2;justify-self:start;margin-top:2px;}
  .section__summary{flex-basis:100%;}
}

@media (min-width:768px){
  .footer-inner{grid-template-columns:1.3fr 1fr 1fr;}
}

/* ---------- 20. 无障碍与降级 ---------- */
@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!important;transform:none!important;}
  .pulse{animation:none;border-color:rgba(255,107,74,.5);}
  .scroll-progress{transition:none;}
}