/* =========================================================
   全站赛场 · KAIYUN  共享样式  /assets/site.css
   底色：深靛蓝炭黑  强调：裁判红 / 裁判黄  数据：实时荧光绿
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#080C16;
  --panel:#101728;
  --line:#1C2740;
  --red:#E8412C;
  --yellow:#F2B01E;
  --green:#38F299;
  --paper:#DDE6F2;
  --muted:#8895AD;
  --link:#5C8CFF;
  --hi:#F5F8FF;
  --font-head:system-ui,-apple-system,'PingFang SC','Noto Sans SC',sans-serif;
  --font-data:'SFMono-Regular','JetBrains Mono',Menlo,Consolas,monospace;
  --r-sm:12px;
  --r-md:18px;
  --r-lg:28px;
  --r-pill:999px;
  --max:1200px;
  --gutter:24px;
  --shadow:0 26px 60px rgba(0,0,0,.48);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
button{background:none;border:0;color:inherit;font:inherit;cursor:pointer}
a{color:var(--link)}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 3. 中文排版与基底 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 12% -12%, rgba(92,140,255,.10), transparent 62%),
    radial-gradient(900px 520px at 106% 4%, rgba(232,65,44,.09), transparent 60%);
  background-repeat:no-repeat;
  color:var(--paper);
  font-family:var(--font-head);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
main{flex:1 0 auto;display:block}
h1,h2,h3,h4{color:var(--hi);font-weight:800;line-height:1.2;letter-spacing:-.01em;text-wrap:balance}
h1{font-size:clamp(34px,5.6vw,64px)}
h2{font-size:clamp(24px,3.4vw,40px)}
h3{font-size:clamp(19px,2.2vw,28px)}
h4{font-size:20px;font-weight:700}
p{text-wrap:pretty}
::selection{background:rgba(232,65,44,.4);color:var(--hi)}

:focus-visible{outline:2px solid var(--link);outline-offset:3px;border-radius:8px}
.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}

/* ---------- 4. 容器与骨架 ---------- */
.wrap{width:100%;max-width:calc(var(--max) + var(--gutter)*2);margin:0 auto;padding:0 var(--gutter)}
.section{padding:72px 0}
.section--tight{padding:44px 0}
.divider{height:1px;background:var(--line);border:0;margin:0}
.note{font-family:var(--font-data);font-size:13px;font-weight:300;color:var(--muted);line-height:1.7}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-data);font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--green);margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--green)}
.page-title{max-width:22ch}
.lede{font-size:clamp(17px,1.5vw,20px);color:var(--paper);max-width:62ch;margin-top:18px;line-height:1.8}
.section-head{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:flex-end;justify-content:space-between;margin-bottom:28px}
.section-title{max-width:26ch}
.section-note{font-family:var(--font-data);font-size:12.5px;color:var(--muted);letter-spacing:.06em}
.prose{max-width:68ch}
.prose p{margin-bottom:1.15em}
.prose h2,.prose h3{margin:1.8em 0 .7em}

/* ---------- 5. 网格 ---------- */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-12{grid-column:span 12}
.col-start-2{grid-column-start:2}
.col-start-3{grid-column-start:3}

/* ---------- 6. 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);
  font-size:14px;font-weight:700;letter-spacing:.03em;
  text-decoration:none;border:1px solid var(--line);
  color:var(--paper);background:rgba(16,23,40,.85);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.btn:hover{border-color:rgba(92,140,255,.6);transform:translateY(-1px)}
.btn--primary{
  background:linear-gradient(135deg,var(--red),#b52a19);
  border-color:transparent;color:var(--hi);
}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--pair,var(--paper))}
.btn--ghost:hover{border-color:var(--green);color:var(--green)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-family:var(--font-data);font-size:12px;letter-spacing:.05em;
  background:rgba(28,39,64,.85);color:var(--paper);
}
.tag--red{background:rgba(232,65,44,.14);color:#FF8B7B;box-shadow:inset 0 0 0 1px rgba(232,65,44,.45)}
.tag--yellow{background:rgba(242,176,30,.14);color:var(--yellow);box-shadow:inset 0 0 0 1px rgba(242,176,30,.45)}
.tag--green{background:rgba(56,242,153,.12);color:var(--green);box-shadow:inset 0 0 0 1px rgba(56,242,153,.4)}

/* ---------- 7. 数据面板 / 资料卡 / 台账 ---------- */
.panel{
  background:linear-gradient(160deg,var(--panel),#0B1120 78%);
  border:1px solid var(--line);
  border-radius:4px;padding:22px 22px 20px;
}
.panel-head{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px;margin-bottom:16px}
.panel-title{font-family:var(--font-data);font-size:13px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}
.panel-tools{display:flex;gap:8px;flex-wrap:wrap}
.panel-body{display:grid;gap:14px}
.card{
  background:rgba(16,23,40,.72);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.card:hover{border-color:rgba(92,140,255,.45)}
.card-title{font-size:19px;font-weight:700;color:var(--hi)}
.card-meta{margin-top:8px;font-family:var(--font-data);font-size:12.5px;color:var(--muted)}
.data-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;border-top:1px solid var(--line);padding-top:12px}
.data-label{font-family:var(--font-data);font-size:12.5px;letter-spacing:.1em;color:var(--muted);min-width:8ch}
.data-value{
  font-family:var(--font-data);
  font-variant-numeric:tabular-nums;
  font-size:44px;font-weight:700;line-height:1.05;
  letter-spacing:-.02em;color:var(--hi);
}
.data-value--xl{font-size:clamp(56px,10vw,96px)}
.data-value--md{font-size:72px}
.data-value--sm{font-size:28px;font-weight:600}
.data-unit{font-family:var(--font-data);font-size:13px;font-weight:300;color:var(--muted)}
.meter{height:6px;border-radius:var(--r-pill);background:rgba(28,39,64,.9);overflow:hidden}
.meter-fill{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--link),var(--green));width:0}
.ledger{font-family:var(--font-data);font-size:13.5px}
.ledger-caption{text-align:left;font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;padding-bottom:12px}
.ledger th{font-weight:500;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:12px;letter-spacing:.08em;white-space:nowrap}
.ledger td{padding:12px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;color:var(--paper);vertical-align:top}
.ledger tbody tr:hover td{background:rgba(92,140,255,.06)}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb{padding:22px 0 8px}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-data);font-size:12.5px;color:var(--muted)}
.breadcrumb-item{display:flex;align-items:center;gap:8px}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:var(--line)}
.breadcrumb-link{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent}
.breadcrumb-link:hover{color:var(--paper);border-bottom-color:var(--yellow)}

/* ---------- 9. 图像容器（页面阶段放图片/占位） ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);
  aspect-ratio:16 / 9;
  background-color:var(--panel);
  background-image:
    linear-gradient(135deg, rgba(92,140,255,.16), rgba(8,12,22,0) 58%),
    repeating-linear-gradient(90deg, rgba(28,39,64,.85) 0 1px, transparent 1px 92px),
    linear-gradient(160deg,#0F1626,#090E1A 72%);
}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to top, rgba(8,12,22,.72), rgba(8,12,22,0) 55%);
}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:16px 20px;
  font-family:var(--font-data);font-size:12px;letter-spacing:.06em;
  color:var(--paper);text-shadow:0 1px 12px rgba(0,0,0,.7);
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:4 / 5}

/* ---------- 10. 主题筛选 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px}
.filter-btn{
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(16,23,40,.8);
  font-size:13.5px;font-weight:600;color:var(--paper);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.filter-btn:hover{border-color:rgba(92,140,255,.55)}
.filter-btn[aria-pressed="true"]{border-color:var(--green);color:var(--green);background:rgba(56,242,153,.1);box-shadow:inset 0 0 0 1px rgba(56,242,153,.35)}
.filter-count{font-family:var(--font-data);font-size:12.5px;color:var(--muted);margin-left:6px}

/* ---------- 11. 显现动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* =========================================================
   12. 页头
   ========================================================= */
.site-header{position:sticky;top:0;z-index:80;padding-top:0;transition:background var(--dur) var(--ease)}
.site-header[data-scrolled="true"]{
  background:linear-gradient(to bottom, rgba(8,12,22,.94), rgba(8,12,22,.62) 72%, rgba(8,12,22,0));
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.scroll-meter{height:2px;background:rgba(28,39,64,.9);overflow:hidden}
.scroll-meter-bar{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--yellow),var(--red) 55%,var(--green));
}
.header-rail{
  position:relative;
  width:100%;max-width:calc(var(--max) + var(--gutter)*2);
  margin:0 auto;padding:14px var(--gutter) 12px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  transition:padding var(--dur) var(--ease);
}
.skip-link{
  position:absolute;left:var(--gutter);top:8px;z-index:200;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--hi);color:#080C16;font-size:13px;font-weight:700;text-decoration:none;
  transform:translateY(-200%);
  transition:transform 180ms var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.brand-island{
  display:inline-flex;align-items:center;gap:12px;
  padding:8px 20px 8px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:linear-gradient(135deg, rgba(16,23,40,.96), rgba(9,14,26,.9));
  text-decoration:none;color:var(--paper);
  transition:border-color var(--dur) var(--ease),padding var(--dur) var(--ease);
}
.brand-island:hover{border-color:rgba(232,65,44,.55)}
.brand-monogram{
  display:grid;place-items:center;width:38px;height:38px;
  border-radius:14px;
  background:linear-gradient(150deg,var(--red),#7C1E12);
  color:var(--hi);font-family:var(--font-data);font-size:13px;font-weight:700;letter-spacing:.06em;
  transition:width var(--dur) var(--ease),height var(--dur) var(--ease);
}
.brand-text{display:flex;flex-direction:column;gap:2px;line-height:1.2}
.brand-mark{font-size:17px;font-weight:800;letter-spacing:.04em;color:var(--hi)}
.brand-sub{font-family:var(--font-data);font-size:11px;letter-spacing:.1em;color:var(--muted)}

.nav-island{
  display:flex;align-items:center;gap:6px;
  padding:6px 8px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(16,23,40,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{display:flex}
.nav-link{
  display:block;padding:8px 13px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--paper);text-decoration:none;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-link:hover{background:rgba(92,140,255,.14);color:var(--hi)}
.nav-link[aria-current="page"]{
  background:rgba(56,242,153,.12);color:var(--green);
  box-shadow:inset 0 0 0 1px rgba(56,242,153,.42);
}
.nav-aside{display:flex;align-items:center;gap:10px;padding-left:10px;border-left:1px solid var(--line)}
.round-chip{
  display:inline-flex;align-items:center;gap:7px;white-space:nowrap;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(56,242,153,.08);
  font-family:var(--font-data);font-size:11.5px;letter-spacing:.04em;color:var(--green);
}
.pulse-dot{
  flex:none;width:7px;height:7px;border-radius:50%;
  background:var(--green);box-shadow:0 0 0 0 rgba(56,242,153,.65);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(56,242,153,.55);opacity:1}
  50%{box-shadow:0 0 0 7px rgba(56,242,153,0);opacity:.55}
}
.nav-cta{
  display:inline-block;padding:8px 18px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--red),#B92C1A);
  color:var(--hi);font-size:13.5px;font-weight:700;letter-spacing:.03em;text-decoration:none;
  transition:filter var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.nav-cta:hover{filter:brightness(1.12);transform:translateY(-1px)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(16,23,40,.92);
  color:var(--paper);font-size:13px;font-weight:700;letter-spacing:.06em;
}
.nav-toggle-bars{display:grid;gap:4px}
.nav-toggle-bars i{display:block;width:16px;height:2px;border-radius:2px;background:var(--yellow);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle[aria-expanded="true"]{border-color:var(--green);color:var(--green)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child{transform:translateY(3px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child{transform:translateY(-3px) rotate(-45deg)}

.site-header[data-scrolled="true"] .header-rail{padding-top:8px;padding-bottom:8px}
.site-header[data-scrolled="true"] .brand-island{padding:5px 16px 5px 8px}
.site-header[data-scrolled="true"] .brand-monogram{width:32px;height:32px;border-radius:12px}

/* =========================================================
   13. 页脚
   ========================================================= */
.site-footer{
  margin-top:72px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(16,23,40,.72), var(--ink) 62%);
}
.footer-rail{
  width:100%;max-width:calc(var(--max) + var(--gutter)*2);
  margin:0 auto;padding:56px var(--gutter) 34px;
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3, minmax(0,1fr));
  gap:36px 24px;
}
.footer-brand{display:flex;flex-direction:column;gap:10px;max-width:40ch}
.footer-mark{font-size:24px;font-weight:800;letter-spacing:.04em;color:var(--hi)}
.footer-sub{font-family:var(--font-data);font-size:12px;letter-spacing:.12em;color:var(--yellow)}
.footer-desc{font-size:13.5px;line-height:1.8;color:var(--muted)}
.footer-flag{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(56,242,153,.08);border:1px solid rgba(56,242,153,.24);
  font-family:var(--font-data);font-size:12px;color:var(--green);width:fit-content;
}
.footer-col{display:flex;flex-direction:column}
.footer-col-title{
  font-family:var(--font-data);font-size:11.5px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--muted);
  margin-bottom:16px;
}
.footer-links{display:grid;gap:10px}
.footer-link{
  font-size:14px;color:var(--paper);text-decoration:none;
  border-bottom:1px solid transparent;width:fit-content;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.footer-link:hover{color:var(--hi);border-bottom-color:var(--red)}
.footer-lines{display:grid;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7}
.footer-line{font-variant-numeric:tabular-nums}
.footer-base{
  width:100%;max-width:calc(var(--max) + var(--gutter)*2);
  margin:0 auto;padding:18px var(--gutter) 36px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  font-family:var(--font-data);font-size:12.5px;letter-spacing:.05em;color:var(--muted);
}
.footer-fine{margin:0}
.footer-legal{color:var(--paper)}

/* =========================================================
   14. 响应式
   ========================================================= */
@media (max-width:1080px){
  .brand-sub{display:none}
  .round-chip{display:none}
}
@media (max-width:1000px){
  .nav-toggle{display:inline-flex}
  .nav-island{
    position:absolute;top:calc(100% + 4px);left:var(--gutter);right:var(--gutter);
    flex-direction:column;align-items:stretch;gap:12px;
    padding:14px;border-radius:26px;
    background:rgba(9,13,24,.98);
    box-shadow:var(--shadow);
    opacity:0;visibility:hidden;transform:translateY(-8px);pointer-events:none;
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
  }
  .nav-island[data-open="true"]{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:12px 14px;font-size:15px;border-radius:16px}
  .nav-aside{
    flex-direction:column;align-items:stretch;gap:10px;
    border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:12px;
  }
  .round-chip{display:inline-flex;justify-content:center}
  .nav-cta{text-align:center}
  .grid-12{gap:20px}
}
@media (max-width:900px){
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8{grid-column:span 12}
  .col-start-2,.col-start-3{grid-column-start:auto}
  .footer-rail{grid-template-columns:repeat(2,minmax(0,1fr));padding-top:44px}
  .footer-brand{grid-column:span 2}
}
@media (max-width:640px){
  :root{--gutter:18px}
  body{font-size:15.5px}
  .section{padding:48px 0}
  .section--tight{padding:32px 0}
  .header-rail{padding:10px var(--gutter) 10px}
  .brand-island{padding:6px 14px 6px 7px}
  .brand-monogram{width:32px;height:32px;border-radius:11px}
  .brand-mark{font-size:15.5px}
  .btn{padding:10px 18px;font-size:13.5px}
  .data-value{font-size:36px}
  .card{padding:20px;border-radius:22px}
  .panel{padding:18px}
  .media-frame{border-radius:20px}
  .footer-rail{grid-template-columns:minmax(0,1fr)}
  .footer-brand{grid-column:span 1}
  .footer-base{flex-direction:column;align-items:flex-start}
}

/* ---------- 15. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}