/* =========================================================
   开云赛事通 KAIYUN — 共享样式 /assets/site.css
   基底：夜场深蓝黑 / 强调：荧光青柠·电光紫·数据青 / 行动：暖橙
   ========================================================= */

/* 01 reset -------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:hidden;scroll-behavior:smooth}
body{margin:0;overflow-x:hidden}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
button{background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}

/* 02 tokens ------------------------------------------------- */
:root{
  --bg:#070B14;
  --panel:#111A2B;
  --line:#1E2A3F;
  --lime:#C6FF3D;
  --violet:#7A5CFF;
  --orange:#FF7A2F;
  --cyan:#2BE3C6;
  --ink:#F2F5F9;
  --muted:#8A94A6;
  --fog:#E8EDF5;
  --dim:#4C5A73;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --rail-w:280px;
  --topbar-h:64px;
  --gut:24px;
  --maxw:1180px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --ease:cubic-bezier(.32,.72,.24,1);
}
@media (max-width:1079px){
  :root{--topbar-h:58px;--gut:18px;--maxw:800px}
}
@media (max-width:560px){
  :root{--gut:16px}
}

/* 03 base --------------------------------------------------- */
html{scroll-behavior:smooth}
body{
  padding-top:var(--topbar-h);
  background-color:var(--bg);
  background-image:
    radial-gradient(900px 620px at 92% -6%, rgba(122,92,255,.17), transparent 62%),
    radial-gradient(760px 520px at 2% 4%, rgba(43,227,198,.09), transparent 66%),
    linear-gradient(rgba(30,42,63,.42) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,42,63,.42) 1px, transparent 1px);
  background-size:auto,auto,84px 84px,84px 84px;
  background-position:0 0,0 0,-1px -1px,-1px -1px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  min-height:100vh;
}
#main-content{display:block;scroll-margin-top:calc(var(--topbar-h) + 18px)}
::selection{background:var(--lime);color:#0B1400}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;border-radius:4px}

h1,.h1{font-size:clamp(44px,7.4vw,88px);font-weight:900;letter-spacing:-.02em;line-height:1.02}
h2,.h2{font-size:clamp(30px,4vw,48px);font-weight:900;letter-spacing:-.02em;line-height:1.1}
h3,.h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em;line-height:1.28}
h4,.h4{font-size:17px;font-weight:700;line-height:1.4}

.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan)}
.lead{font-size:clamp(17px,1.5vw,20px);line-height:1.7;color:var(--muted);max-width:640px}
.prose{max-width:760px;color:#D8DEE9}
.prose p+p{margin-top:18px}
.prose h2{margin-top:44px;margin-bottom:16px}
.prose h3{margin-top:32px;margin-bottom:12px}
.num{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--dim)}
.muted{color:var(--muted)}
.lime{color:var(--lime)}
.cyan{color:var(--cyan)}

/* 04 layout ------------------------------------------------- */
.wrap{width:min(calc(100% - var(--gut) * 2), var(--maxw));margin-inline:auto}
.wrap--wide{--maxw:1440px}
.section{padding-block:clamp(56px,7vw,104px)}
.section--tight{padding-block:clamp(32px,4vw,56px)}
.grid12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gut)}
.col-12{grid-column:span 12}
.col-8{grid-column:span 8}
.col-7{grid-column:span 7}
.col-5{grid-column:span 5}
.col-4{grid-column:span 4}
.col-3{grid-column:span 3}
@media (max-width:1079px){
  .grid12{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
  .col-12,.col-8,.col-7,.col-5,.col-4,.col-3{grid-column:1 / -1}
}

/* 05 components --------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 22px;border:1px solid var(--line);border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.01em;text-align:center;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--action{background:var(--orange);border-color:var(--orange);color:#1B0A00}
.btn--action:hover{background:#FF9355;border-color:#FF9355;transform:translateY(-2px)}
.btn--action:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{border-color:var(--lime);color:var(--lime)}

.sweep{position:relative;display:inline-block}
.sweep::after{
  content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;
  background:var(--lime);transform:scaleX(0);transform-origin:left center;
  transition:transform .28s var(--ease);
}
.sweep:hover::after,.sweep:focus-visible::after{transform:scaleX(1)}

.card{
  position:relative;padding:clamp(20px,2.4vw,30px);
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--panel);
}
.card--float{
  border-color:rgba(122,92,255,.34);
  box-shadow:0 30px 70px -34px rgba(122,92,255,.85);
}
.card--lime{border-color:rgba(198,255,61,.4)}

.plate{
  position:relative;overflow:hidden;
  padding:clamp(22px,3vw,40px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(150deg,rgba(17,26,43,.96),rgba(7,11,20,.9));
}
.plate>*{position:relative;z-index:1}
.plate::after{
  content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,255,61,.22),transparent 68%);
  pointer-events:none;
}
.plate--violet::after{background:radial-gradient(circle,rgba(122,92,255,.34),transparent 70%)}
.plate--cyan::after{background:radial-gradient(circle,rgba(43,227,198,.24),transparent 70%)}

.media{
  position:relative;overflow:hidden;aspect-ratio:16/9;
  border:1px solid var(--line);border-radius:var(--r-md);
  background-color:var(--panel);
  background-image:linear-gradient(135deg,rgba(122,92,255,.26),rgba(43,227,198,.14) 46%,rgba(7,11,20,.92));
}
.media>img,.media>picture>img,.media>video{width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,0) 46%,rgba(7,11,20,.72));
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border:1px solid var(--line);border-radius:999px;
  background:rgba(7,11,20,.78);
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--ink);
}
.media__caption{margin-top:10px;font-family:var(--mono);font-size:12px;letter-spacing:.04em;color:var(--muted)}

.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:var(--panel)}
.table{width:100%;min-width:560px;font-size:15px}
.table th,.table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
.table thead th{
  position:sticky;top:0;z-index:1;background:var(--panel);
  font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--muted);
}
.table tbody tr:last-child td{border-bottom:0}
.table tbody tr:hover{background:rgba(122,92,255,.08)}
.table td[data-num],.table .mono{font-family:var(--mono);letter-spacing:.04em}

.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;
  border:1px solid var(--line);border-radius:999px;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);
}
.tag--lime{color:var(--lime);border-color:rgba(198,255,61,.45)}
.tag--violet{color:#B7A6FF;border-color:rgba(122,92,255,.5)}
.tag--cyan{color:var(--cyan);border-color:rgba(43,227,198,.45)}

.status-dot{
  display:inline-block;flex:none;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 3px rgba(43,227,198,.16);
}

.mark{
  display:inline-grid;place-items:center;width:38px;height:38px;
  border:1px solid var(--line);border-radius:12px;
  background:rgba(7,11,20,.6);color:var(--muted);
  font-size:15px;line-height:1;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.mark:hover{border-color:rgba(198,255,61,.5);color:var(--ink)}
.mark[aria-pressed="true"]{border-color:var(--lime);color:#0B1400;background:var(--lime)}

.switch{
  display:inline-flex;gap:4px;padding:4px;
  border:1px solid var(--line);border-radius:999px;background:rgba(17,26,43,.8);
}
.switch__btn{
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:700;color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.switch__btn:hover{color:var(--ink)}
.switch__btn[aria-pressed="true"]{background:var(--lime);color:#0B1400}

.crumbs{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#33415A}
.crumbs a:hover{color:var(--lime)}
.crumbs [aria-current="page"]{color:var(--ink)}

.reveal{transition:opacity .65s var(--ease),transform .65s var(--ease)}
html[data-motion="on"] .reveal{opacity:0;transform:translateY(16px)}
html[data-motion="on"] .reveal.is-in{opacity:1;transform:none}

/* 06 header: 左侧轨道 + 顶部状态条 ---------------------------- */
.site-head{position:relative;z-index:80}

.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  padding:10px 16px;border-radius:10px;
  background:var(--lime);color:#0B1400;font-weight:700;font-size:14px;
  transform:translateY(-180%);
  transition:transform .22s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:80;
  display:flex;flex-direction:column;
  padding:30px 26px 26px;
  background:linear-gradient(180deg,#0A101C 0%,#070B14 58%);
  border-right:1px solid var(--line);
  overflow-x:hidden;overflow-y:auto;
}
.rail::before{
  content:"";position:absolute;left:-30%;bottom:-6%;width:160%;height:240px;
  background:radial-gradient(58% 58% at 50% 50%,rgba(122,92,255,.30),rgba(122,92,255,0) 72%);
  transform:skewY(-6deg);pointer-events:none;
}
.rail::after{
  content:"";position:absolute;top:0;right:0;width:1px;height:100%;
  background:linear-gradient(180deg,transparent,var(--line) 18%,var(--line) 82%,transparent);
}
.rail__brand{position:relative;padding-bottom:22px;border-bottom:1px solid var(--line)}
.rail__logo{display:block}
.rail__logo-cn{display:block;font-size:30px;font-weight:900;letter-spacing:-.02em;line-height:1.1;color:var(--ink);transition:color .2s var(--ease)}
.rail__logo:hover .rail__logo-cn{color:var(--lime)}
.rail__logo-en{display:block;margin-top:8px;font-size:12px;letter-spacing:.32em;color:var(--cyan)}
.rail__tag{margin-top:12px;font-size:14px;line-height:1.6;color:var(--muted)}

.rail__nav{position:relative;flex:1;display:flex;flex-direction:column;gap:18px;margin-top:26px}
.rail__navhead{font-size:11px;letter-spacing:.24em;color:var(--dim)}
.rail__list{display:flex;flex-direction:column;gap:2px}
.rail__link{
  display:flex;align-items:baseline;gap:12px;
  padding:11px 12px 11px 15px;
  border-left:2px solid transparent;border-radius:0 12px 12px 0;
  font-size:16px;font-weight:500;color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),font-size .2s var(--ease);
}
.rail__link:hover{color:var(--ink);background:rgba(198,255,61,.07);border-left-color:rgba(198,255,61,.5)}
.rail__link:hover .rail__num{color:var(--lime)}
.rail__link[aria-current="page"]{
  color:var(--ink);font-weight:800;font-size:17px;border-left-color:var(--lime);
  background:linear-gradient(90deg,rgba(198,255,61,.15),rgba(198,255,61,0) 78%);
}
.rail__link[aria-current="page"] .rail__num{color:var(--lime)}
.rail__num{font-size:11px;letter-spacing:.12em;color:var(--dim)}
.rail__cta{margin-top:auto;width:100%}
.rail__note{font-size:11px;line-height:1.7;letter-spacing:.04em;color:var(--dim)}

.rail__meter{position:absolute;top:0;right:0;bottom:0;width:3px;background:rgba(30,42,63,.85);pointer-events:none}
.rail__meter-fill{display:block;width:100%;height:0;background:linear-gradient(180deg,var(--lime),var(--cyan) 55%,var(--violet));transition:height .16s linear}

.rail__scrim{position:fixed;inset:0;z-index:55;background:rgba(4,7,13,.72);backdrop-filter:blur(3px)}

.topbar{
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:60;
  background:rgba(7,11,20,.88);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar__inner{
  display:flex;align-items:center;gap:16px;height:100%;
  width:min(calc(100% - var(--gut) * 2), var(--maxw));margin-inline:auto;
}
.topbar__brand{display:flex;align-items:center;gap:10px;font-weight:800}
.topbar__mark{font-size:11px;letter-spacing:.26em;color:var(--cyan)}
.topbar__name{font-size:17px;letter-spacing:-.01em}
.topbar__section{
  display:inline-flex;align-items:center;gap:8px;margin-left:auto;
  font-size:11px;letter-spacing:.16em;color:var(--muted);white-space:nowrap;
}
.topbar__ticker{margin-left:auto;font-size:11px;letter-spacing:.1em;color:var(--dim);white-space:nowrap}

.navbtn{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  margin-left:auto;width:44px;height:44px;padding:0 11px;flex:none;
  border:1px solid var(--line);border-radius:12px;background:var(--panel);
}
.navbtn__bar{height:2px;border-radius:2px;background:var(--ink);transition:transform .26s var(--ease),opacity .26s var(--ease)}
.navbtn[aria-expanded="true"] .navbtn__bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.navbtn[aria-expanded="true"] .navbtn__bar:nth-child(2){opacity:0}
.navbtn[aria-expanded="true"] .navbtn__bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 07 header responsive -------------------------------------- */
@media (max-width:1079px){
  .site-head{position:static}
  body{padding-top:var(--topbar-h)}
  .rail{
    position:fixed;inset:0;width:auto;padding:0;
    display:block;background:none;border:0;overflow:visible;
    pointer-events:none;z-index:80;
  }
  .rail::before,.rail::after{display:none}
  .rail__brand,.rail__meter{display:none}
  .rail__nav{
    position:fixed;top:var(--topbar-h);right:0;bottom:0;
    width:min(88vw,360px);margin:0;padding:24px 20px 30px;gap:16px;
    background:linear-gradient(180deg,#0B1220,#070B14);
    border-left:1px solid var(--line);
    box-shadow:-26px 0 60px rgba(0,0,0,.5);
    overflow-y:auto;pointer-events:auto;
    transform:translateX(102%);
    transition:transform .34s var(--ease);
  }
  .rail__nav[data-open]{transform:none}
  .rail__list{gap:4px}
  .rail__cta{width:100%}
}
@media (min-width:1080px){
  body{padding-left:var(--rail-w)}
  .topbar{left:var(--rail-w)}
  .topbar__brand{display:none}
  .topbar__ticker{display:block}
  .navbtn{display:none}
  .rail__scrim{display:none!important}
}

/* 08 footer -------------------------------------------------- */
.foot{
  position:relative;overflow:hidden;
  margin-top:clamp(56px,8vw,110px);
  padding:clamp(44px,6vw,84px) 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0A101C,#070B14 70%);
}
.foot::before{
  content:"";position:absolute;top:-120px;left:-10%;width:62%;height:340px;
  background:radial-gradient(50% 50% at 50% 50%,rgba(43,227,198,.14),transparent 72%);
  transform:skewY(-6deg);pointer-events:none;
}
.foot__inner{position:relative;display:grid;gap:34px}
.foot__brand{max-width:360px}
.foot__logo{display:inline-flex;align-items:baseline;gap:10px;font-size:26px;font-weight:900;letter-spacing:-.02em;color:var(--ink)}
.foot__logo-en{font-size:11px;letter-spacing:.28em;color:var(--cyan)}
.foot__tag{margin-top:12px;font-size:14px;color:var(--muted)}
.foot__sync{margin-top:10px;font-size:11px;letter-spacing:.1em;color:var(--dim)}
.foot__cols{display:grid;gap:28px 24px;grid-template-columns:repeat(2,minmax(0,1fr))}
.foot__h{margin-bottom:14px;font-size:11px;font-weight:500;letter-spacing:.2em;color:var(--dim)}
.foot__list{display:flex;flex-direction:column;gap:10px}
.foot__link{font-size:15px;color:var(--ink)}
.foot__link:hover{color:var(--lime)}
.foot__mono{margin-top:14px;font-size:11px;line-height:1.8;letter-spacing:.06em;color:var(--dim)}

.foot__meta{
  position:relative;display:grid;gap:10px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
}
.foot__contact{font-size:14px;line-height:1.9;color:var(--muted)}
.foot__contact .mono{color:var(--ink)}
.foot__note{font-size:12px;line-height:1.8;color:var(--dim);max-width:860px}

.foot__base{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:14px 22px;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line);
}
.foot__legal{font-size:11px;letter-spacing:.08em;color:var(--dim)}
.foot__legalnav{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted)}
.foot__legalnav a:hover{color:var(--lime)}
.foot__top{
  display:inline-flex;align-items:center;gap:8px;margin-left:auto;
  padding:9px 16px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.foot__top.is-on{border-color:rgba(198,255,61,.55);color:var(--ink)}
.foot__top:hover{border-color:var(--lime);color:var(--lime);background:rgba(198,255,61,.08)}
.foot__year{position:relative;margin-top:18px;font-size:11px;letter-spacing:.1em;color:#3B475C}

@media (min-width:900px){
  .foot__cols{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (min-width:1200px){
  .foot__inner{grid-template-columns:minmax(220px,.9fr) 2.1fr;gap:48px}
}

/* 09 motion preferences -------------------------------------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  html[data-motion="on"] .reveal{opacity:1!important;transform:none!important}
  .rail__meter-fill{transition:none}
}