/* ==========================================================================
   全站赛事 · KAIYUN 直营内容入口 · /assets/site.css
   深夜赛场指挥中心：夜场深蓝底 + 细线网格 + 锐利直角 + 信号橙/荧光青强调
   ========================================================================== */

:root{
  --navy:#0A1626;
  --navy-2:#0F2036;
  --navy-3:#16293F;
  --orange:#FF6A21;
  --orange-soft:#FF8347;
  --cyan:#2CE8D0;
  --amber:#FFC24B;
  --teal:#3ED8A0;
  --magenta:#FF3D8B;
  --ink:#E9F0F7;
  --muted:#93A4B8;
  --line:#24405F;
  --red:#FF5A5A;
  --ink-invert:#08111d;
  --header-h:76px;
  --header-h-compact:56px;
  --dock-h:56px;
  --radius:2px;
  --maxw:1240px;
  --font-head:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--cyan);text-decoration:none;}
a:hover{color:var(--orange);}
img,svg,video{max-width:100%;height:auto;display:block;}
button{font:inherit;color:inherit;background:none;border:0;}
table{border-collapse:collapse;width:100%;}
[id]{scroll-margin-top:calc(var(--header-h) + 14px);}

/* ---------- 中文排版基准 ---------- */
html{background:var(--navy);}
body{
  background:var(--navy);
  color:var(--ink);
  font-family:var(--font-head);
  font-size:17px;
  font-weight:500;
  line-height:1.75;
  letter-spacing:.01em;
  padding-bottom:calc(var(--dock-h) + 20px);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.12;}
h1{font-size:clamp(34px,5.4vw,64px);}
h2{font-size:clamp(24px,3.2vw,38px);}
h3{font-size:clamp(19px,2.1vw,24px);}
p{max-width:38em;}
strong{font-weight:800;color:var(--ink);}
::selection{background:var(--orange);color:var(--ink-invert);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}

.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;}

/* ---------- 容器与节奏 ---------- */
.wrap{width:min(100% - 36px,var(--maxw));margin-inline:auto;}
.site-main{display:block;position:relative;}
.section{padding:clamp(48px,7vw,84px) 0;position:relative;}
.section + .section{border-top:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 24px;margin-bottom:32px;}
.eyebrow{font-family:var(--font-num);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);}
.lede{font-size:clamp(17px,1.5vw,19px);color:var(--muted);max-width:34em;}
.rule{height:1px;border:0;background:var(--line);margin:0;}

.grid{display:grid;gap:18px;}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));}

/* ---------- 通用元件 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:var(--radius);
  font-size:13px;font-weight:800;letter-spacing:.08em;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--orange);color:var(--ink-invert);}
.btn-primary:hover{background:var(--orange-soft);color:var(--ink-invert);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);}

.label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line);border-radius:var(--radius);
  padding:3px 8px;white-space:nowrap;
}
.tag{
  display:inline-flex;align-items:center;
  font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  padding:3px 8px;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--muted);background:transparent;
}
.tag--amber{background:var(--amber);border-color:var(--amber);color:var(--ink-invert);}
.tag--teal{border-color:var(--teal);color:var(--teal);}
.tag--magenta{border-color:var(--magenta);color:var(--magenta);}
.tag--cyan{border-color:var(--cyan);color:var(--cyan);}

.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.08em;}
.num-xl{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(42px,7.6vw,88px);line-height:.95;font-weight:700;
  letter-spacing:.04em;color:var(--ink);display:block;
}
.num-xl .num-unit{font-size:.3em;color:var(--muted);letter-spacing:.16em;margin-left:.4em;}

.panel{background:var(--navy-2);border:1px solid var(--line);border-radius:var(--radius);padding:26px;}
.card{background:var(--navy-3);border:1px solid var(--line);border-radius:var(--radius);padding:20px;}

.side-note{
  writing-mode:vertical-rl;text-orientation:mixed;
  font-family:var(--font-num);font-size:11px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);
}

.breadcrumb{font-size:12px;letter-spacing:.08em;color:var(--muted);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line);}
.breadcrumb li:last-child::after{content:"";margin:0;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}

/* ---------- 图片容器（页面阶段复用） ---------- */
.media-frame{
  position:relative;display:block;overflow:hidden;
  aspect-ratio:16/9;
  background:var(--navy-3);
  border:1px solid var(--line);border-radius:var(--radius);
}
.media-frame[data-ratio="4x3"]{aspect-ratio:4/3;}
.media-frame[data-ratio="3x4"]{aspect-ratio:3/4;}
.media-frame[data-ratio="1x1"]{aspect-ratio:1/1;}
.media-frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) contrast(1.06);}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(10,22,38,0) 42%,rgba(10,22,38,.78) 100%);
}
.media-frame--plain::after{display:none;}
.media-cap{
  position:absolute;left:14px;bottom:12px;z-index:2;
  font-family:var(--font-num);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:14px;top:-90px;z-index:200;
  padding:10px 16px;background:var(--orange);color:var(--ink-invert);
  font-size:13px;font-weight:800;letter-spacing:.08em;border-radius:var(--radius);
  transition:top .18s var(--ease);
}
.skip-link:focus{top:14px;color:var(--ink-invert);}

/* ---------- 头部刻度带占位 ---------- */
.header-spacer{
  height:var(--header-h);
  background:
    repeating-linear-gradient(90deg,rgba(36,64,95,.85) 0 1px,transparent 1px 56px),
    linear-gradient(180deg,var(--navy-2),var(--navy));
  border-bottom:1px solid var(--line);
}

/* ---------- 头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--header-h);
  background:linear-gradient(180deg,rgba(10,22,38,.92) 0%,rgba(10,22,38,.55) 62%,rgba(10,22,38,0) 100%);
  transition:height .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-solid{
  height:var(--header-h-compact);
  background:rgba(15,32,54,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.header-rail{
  position:absolute;top:0;left:0;right:0;height:5px;opacity:.7;
  background:repeating-linear-gradient(90deg,var(--line) 0 1px,transparent 1px 32px);
  transition:opacity .24s var(--ease);
}
.site-header.is-solid .header-rail{opacity:.35;}

.header-inner{
  width:min(100% - 32px,1320px);height:100%;margin-inline:auto;
  display:flex;align-items:center;gap:12px;
}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-pulse{
  width:8px;height:8px;background:var(--cyan);flex:0 0 auto;
  box-shadow:0 0 0 0 rgba(44,232,208,.55);
  animation:pulse 2.6s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(44,232,208,.55);}
  70%{box-shadow:0 0 0 10px rgba(44,232,208,0);}
  100%{box-shadow:0 0 0 0 rgba(44,232,208,0);}
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:900;letter-spacing:.02em;color:var(--ink);}
.brand-sub{font-family:var(--font-num);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);}

.version-badge{
  font-family:var(--font-num);font-size:11px;letter-spacing:.08em;
  color:var(--cyan);border:1px solid var(--line);border-radius:var(--radius);
  padding:2px 7px;flex:0 0 auto;
}

.nav-toggle{
  margin-left:auto;display:inline-flex;align-items:center;gap:9px;
  padding:9px 12px;border:1px solid var(--line);border-radius:var(--radius);
  color:var(--ink);cursor:pointer;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bars{display:flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle-bars span{display:block;height:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-toggle-text{font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;}

/* 导航：移动优先（面板式） */
.site-nav{
  position:absolute;top:100%;left:0;right:0;z-index:5;
  background:var(--navy-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  max-height:0;overflow:hidden;visibility:hidden;
  transition:max-height .3s var(--ease),visibility .3s var(--ease);
}
.site-nav[data-open]{
  max-height:calc(100vh - var(--header-h));
  overflow-y:auto;visibility:visible;
}
.nav-list{display:flex;flex-direction:column;}
.nav-link{
  display:block;padding:15px 20px;font-size:15px;font-weight:600;
  color:var(--muted);border-bottom:1px solid var(--line);
  border-left:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--ink);}
.nav-link[aria-current="page"]{
  color:var(--ink);border-left-color:var(--orange);
  background:rgba(22,41,63,.65);
}
.header-cta{
  display:block;margin:16px 20px 22px;padding:13px 18px;
  background:var(--orange);color:var(--ink-invert);
  font-size:13px;font-weight:800;letter-spacing:.08em;text-align:center;
  border-radius:var(--radius);
  transition:background-color .18s var(--ease);
}
.header-cta:hover{background:var(--orange-soft);color:var(--ink-invert);}

.scroll-progress{position:absolute;left:0;right:0;bottom:-1px;height:2px;pointer-events:none;}
.scroll-progress-bar{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .1s linear;
}

/* ---------- 底部快捷坞 ---------- */
.quick-dock{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(15,32,54,.97);
  border-top:1px solid var(--line);
  backdrop-filter:blur(8px);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
.dock-list{
  width:min(100% - 24px,960px);margin-inline:auto;
  height:var(--dock-h);
  display:flex;align-items:stretch;justify-content:space-between;gap:4px;
}
.dock-list > li{flex:1 1 0;display:flex;}
.dock-link{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.06em;
  border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.dock-link:hover,.dock-link:focus-visible{color:var(--ink);border-bottom-color:var(--orange);}
.dock-index{font-family:var(--font-num);font-size:11px;letter-spacing:.08em;color:var(--cyan);}
.dock-label{white-space:nowrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(48px,7vw,88px);
  background:var(--navy-2);
  border-top:1px solid var(--line);
}
.footer-coord{
  border-bottom:1px solid var(--line);
  padding:11px 18px;
  font-family:var(--font-num);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);text-align:center;
  background:repeating-linear-gradient(90deg,rgba(36,64,95,.5) 0 1px,transparent 1px 48px);
}
.footer-inner{
  width:min(100% - 36px,var(--maxw));margin-inline:auto;
  padding:clamp(36px,5vw,60px) 0 32px;
  display:grid;gap:38px 56px;
  grid-template-columns:1fr;
}
.footer-brand{display:flex;flex-direction:column;gap:16px;}
.footer-brand-line{
  font-size:clamp(16px,1.6vw,19px);font-weight:900;letter-spacing:-.01em;
  line-height:1.5;color:var(--ink);max-width:30em;
}
.footer-vert{
  writing-mode:vertical-rl;text-orientation:mixed;
  font-family:var(--font-num);font-size:11px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--line);
}
.footer-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 24px;}
.footer-col-title{
  font-size:11px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan);padding-bottom:9px;margin-bottom:12px;
  border-bottom:1px solid var(--line);
}
.footer-links li + li{margin-top:2px;}
.footer-links a{
  position:relative;display:block;padding:6px 0 6px 16px;
  font-size:14px;font-weight:600;color:var(--muted);
  transition:color .18s var(--ease);
}
.footer-links a::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:1px;
  background:var(--line);transition:width .18s var(--ease),background-color .18s var(--ease);
}
.footer-links a:hover{color:var(--ink);}
.footer-links a:hover::before{width:11px;background:var(--orange);}
.footer-contact{
  grid-column:1 / -1;
  border-top:1px solid var(--line);
  padding-top:26px;
  display:flex;flex-direction:column;gap:8px;
}
.footer-contact-line{font-size:14px;color:var(--ink);}
.footer-contact-line .num{color:var(--cyan);}
.footer-note{font-size:12px;line-height:1.7;color:var(--muted);max-width:44em;}
.footer-actions{margin-top:8px;}
.footer-bottom{
  width:min(100% - 36px,var(--maxw));margin-inline:auto;
  border-top:1px solid var(--line);
  padding:16px 0 20px;
  display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;
  font-family:var(--font-num);font-size:11px;letter-spacing:.08em;color:var(--muted);
}
.footer-icp{color:var(--muted);}

/* ---------- 滚动显现（JS 生效时启用） ---------- */
html.js [data-reveal]{
  opacity:0;transform:translate3d(0,12px,0);
  transition:opacity .52s var(--ease),transform .52s var(--ease);
}
html.js [data-reveal].is-revealed{opacity:1;transform:none;}

/* ---------- 平板 ---------- */
@media (min-width:700px){
  .footer-cols{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-inner{grid-template-columns:1.05fr 1.95fr;}
}

/* ---------- 桌面 ---------- */
@media (min-width:1024px){
  .nav-toggle{display:none;}
  .site-nav{
    position:static;display:flex;align-items:center;gap:16px;
    margin-left:auto;max-height:none;overflow:visible;visibility:visible;
    background:transparent;border:0;transition:none;
  }
  .nav-list{flex-direction:row;align-items:center;gap:2px;}
  .nav-link{
    padding:10px 12px;font-size:14px;line-height:1.2;
    border-bottom:2px solid transparent;border-left:0;
  }
  .nav-link[aria-current="page"]{
    background:transparent;border-bottom-color:var(--orange);color:var(--ink);
  }
  .header-cta{
    display:inline-flex;align-items:center;margin:0;padding:10px 16px;text-align:left;
  }
  .dock-link{font-size:13px;letter-spacing:.08em;gap:10px;}
}

@media (min-width:1024px) and (max-width:1180px){
  .nav-link{padding:10px 9px;font-size:13px;}
  .brand-sub{display:none;}
}

/* ---------- 手机细化 ---------- */
@media (max-width:1023px){
  :root{--header-h:64px;--dock-h:58px;}
  .brand-sub{font-size:9px;letter-spacing:.14em;}
  .dock-link{flex-direction:column;gap:2px;font-size:10px;letter-spacing:.04em;}
  .dock-index{font-size:10px;}
}
@media (max-width:420px){
  .version-badge{display:none;}
  p{max-width:none;}
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .brand-pulse{animation:none;box-shadow:none;}
  html.js [data-reveal]{opacity:1;transform:none;}
  .scroll-progress-bar{transition:none;}
}