/* =========================================================
   万博体育最新版 · 共享站点样式 /assets/site.css
   数据控制室气质：深墨蓝底 + 电光青限红标尺 + 炽橙比率
   ========================================================= */

/* ---------- 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,figcaption,blockquote,dl,dd,fieldset{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
[hidden]{display:none!important}

/* ---------- tokens ---------- */
:root{
  --ink-900:#08131F;
  --ink-800:#0B1B2B;
  --ink-700:#10263A;
  --ink-600:#16324A;
  --paper:#F2E9DC;
  --paper-2:#D8C7AF;
  --paper-ink:#14212E;
  --cyan:#22F0E0;
  --orange:#FF6B2C;
  --steel:#6C7C8C;
  --steel-2:#B7C2CC;
  --green:#7CFFB2;
  --amber:#FFC857;

  --frame-w:1280px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --pill:999px;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC",system-ui,-apple-system,"Segoe UI","PingFang SC",sans-serif;
  --font-num:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --ease:160ms ease;
}

/* ---------- 全局舞台 ---------- */
body{
  min-height:100%;
  background-color:var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(34,240,224,.10), transparent 62%),
    radial-gradient(780px 440px at 94% 2%, rgba(255,107,44,.10), transparent 60%),
    repeating-linear-gradient(0deg, rgba(108,124,140,.07) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(90deg, rgba(108,124,140,.07) 0 1px, transparent 1px 76px);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
#main-content{display:block;scroll-margin-top:118px}

:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

/* 桌面端外框：导航与页脚共同构成页面边框 */
@media (min-width:1200px){
  body::after{
    content:"";position:fixed;inset:14px;border:1px solid rgba(108,124,140,.16);
    border-radius:22px;pointer-events:none;z-index:4;
  }
}

/* ---------- 容器 ---------- */
.frame-width,.container{
  width:100%;max-width:var(--frame-w);margin-inline:auto;
  padding-inline:clamp(16px,3.6vw,40px);
}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:200;
  transform:translateY(-220%);
  background:var(--cyan);color:#04212B;font-weight:800;font-size:14px;
  padding:.6em 1.1em;border-radius:var(--pill);
  transition:transform var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--font-body);font-weight:800;font-size:.95rem;letter-spacing:.02em;
  padding:.72em 1.35em;border-radius:var(--pill);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--orange);color:#180C04;border-color:var(--orange)}
.btn-primary:hover{background:#FF8351;border-color:#FF8351}
.btn-ghost{background:rgba(8,19,31,.5);color:var(--paper);border-color:rgba(183,194,204,.42)}
.btn-ghost:hover{color:var(--cyan);border-color:var(--cyan);background:rgba(34,240,224,.08)}
.btn-sm{font-size:.85rem;padding:.55em 1em}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,19,31,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(108,124,140,.34);
}
.header-rail{
  background:linear-gradient(90deg,rgba(16,38,58,.96),rgba(8,19,31,.96));
  border-bottom:1px solid rgba(108,124,140,.24);
}
.rail-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:34px;padding-block:5px;font-size:12.5px;
}
.rail-note{display:flex;align-items:center;gap:8px;color:var(--steel-2);letter-spacing:.04em}
.rail-dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);flex:0 0 auto;
  box-shadow:0 0 0 3px rgba(124,255,178,.16);
}
.rail-meta{display:flex;align-items:center;gap:18px}
.rail-meta-item{display:flex;align-items:baseline;gap:6px}
.rail-key{color:var(--steel-2);letter-spacing:.08em}
.rail-val{color:var(--cyan);font-weight:700;font-size:14px}
.rail-unit{color:var(--steel-2);font-size:11px}

.header-bar{background:linear-gradient(90deg,rgba(16,38,58,.55),rgba(8,19,31,.55))}
.header-inner{
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  min-height:66px;padding-block:10px;
}

/* 品牌 */
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  position:relative;width:34px;height:34px;flex:0 0 auto;
  border-radius:11px;
  background:linear-gradient(140deg,var(--cyan),var(--orange));
  overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(8,19,31,.86),rgba(8,19,31,0) 62%);
}
.brand-mark::after{
  content:"";position:absolute;left:7px;right:7px;top:50%;height:2px;
  background:var(--ink-900);border-radius:2px;
  transform:translateY(-50%) rotate(-24deg);
}
.brand-text{display:flex;flex-direction:column;gap:1px}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:17px;line-height:1.15;letter-spacing:.04em}
.brand-sub{font-size:11.5px;letter-spacing:.1em;color:var(--steel-2)}
.brand-footer .brand-name{font-size:18px}

/* 移动导航按钮 */
.nav-toggle{
  display:inline-flex;align-items:center;gap:9px;margin-left:auto;
  background:rgba(16,38,58,.9);border:1px solid rgba(108,124,140,.42);
  color:var(--paper);border-radius:var(--pill);
  padding:8px 14px;font-size:13px;font-weight:700;letter-spacing:.08em;cursor:pointer;
  transition:border-color var(--ease),color 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;border-radius:2px;background:currentColor;
  transition:transform var(--ease),opacity 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)}

/* 导航基础 */
.site-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{display:flex}
.nav-link{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:9px 12px;border-radius:var(--pill);
  font-size:14.5px;font-weight:600;color:var(--paper-2);
  transition:color var(--ease),background-color var(--ease);
}
.nav-index{font-size:10.5px;letter-spacing:.12em;color:var(--steel)}
.nav-label{display:inline-block}
.nav-link:hover{color:var(--cyan);background:rgba(34,240,224,.09)}
.nav-link[aria-current="page"]{
  color:#04212B;background:var(--cyan);
  box-shadow:0 0 0 1px rgba(34,240,224,.45),0 6px 18px rgba(34,240,224,.18);
}
.nav-link[aria-current="page"] .nav-index{color:#0A4A52}
.nav-foot{display:flex;align-items:center;margin-left:clamp(10px,2vw,22px)}

/* 移动端 / 平板抽屉 */
@media (max-width:1023px){
  .site-nav{
    position:fixed;top:0;right:0;bottom:0;z-index:70;
    width:min(340px,86vw);
    display:flex;flex-direction:column;gap:10px;
    padding:104px 22px 28px;
    background:linear-gradient(180deg,rgba(16,38,58,.99),rgba(8,19,31,.99));
    border-left:1px solid rgba(34,240,224,.28);
    box-shadow:-24px 0 60px rgba(2,8,14,.62);
    transform:translateX(103%);
    visibility:hidden;
    overflow-y:auto;
    transition:transform 220ms ease,visibility 220ms ease;
  }
  .site-nav[data-open]{
    transform:translateX(0);
    visibility:visible;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:6px}
  .nav-item{display:block}
  .nav-link{
    display:flex;align-items:center;gap:12px;
    padding:13px 14px;border-radius:14px;font-size:16px;
    background:rgba(8,19,31,.45);
    border:1px solid rgba(108,124,140,.2);
  }
  .nav-link[aria-current="page"]{border-color:transparent}
  .nav-index{font-size:11px}
  .nav-foot{margin-left:0;margin-top:auto;display:block;padding-top:14px}
  .nav-foot .btn{width:100%}
}

/* 桌面端导航复位 */
@media (min-width:1024px){
  .site-nav,.site-nav[data-open]{
    position:static;visibility:visible;transform:none;width:auto;
    flex-direction:row;padding:0;background:none;border:0;box-shadow:none;
    overflow:visible;margin-left:auto;
  }
  .nav-toggle{display:none}
  .nav-list{flex-direction:row}
}

/* 滚动进度 */
.scroll-track{position:relative;height:2px;background:rgba(108,124,140,.24)}
.scroll-thumb{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);transform-origin:0 50%;
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,rgba(16,38,58,.62),rgba(8,19,31,1));
  border-top:1px solid rgba(108,124,140,.3);
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto;height:2px;
  background:linear-gradient(90deg,var(--cyan),rgba(255,107,44,.85) 45%,transparent);
}
.footer-grid{
  display:grid;gap:clamp(20px,2.6vw,36px);
  grid-template-columns:1fr;
  padding-block:clamp(34px,5vw,58px);
}
@media (min-width:700px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .footer-brand{grid-column:1/-1}
  .footer-contact{grid-column:1/-1}
}
@media (min-width:1100px){
  .footer-grid{grid-template-columns:1.45fr .8fr .9fr .8fr 1.35fr}
  .footer-brand,.footer-contact{grid-column:auto}
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start}
.footer-note{margin-top:14px;max-width:42ch;font-size:14px;color:var(--steel-2)}
.footer-note.small{font-size:12.5px;color:var(--steel)}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-col{display:flex;flex-direction:column}
.footer-title{
  position:relative;font-size:12.5px;font-weight:800;letter-spacing:.18em;
  color:var(--paper);
}
.footer-title::before{
  content:"";display:inline-block;width:14px;height:2px;margin-right:8px;
  background:var(--cyan);border-radius:2px;vertical-align:middle;
}
.footer-list{display:grid;gap:9px;margin-top:14px}
.contact-list{gap:16px}
.footer-link{
  font-size:14.5px;color:var(--steel-2);
  transition:color var(--ease);
}
.footer-link:hover{color:var(--cyan)}
.footer-key{display:block;font-size:12px;letter-spacing:.1em;color:var(--steel)}
.footer-value{display:block;margin-top:3px;font-size:14px;color:var(--paper-2);line-height:1.6}
.copy-chip{
  display:inline-flex;align-items:center;gap:10px;
  margin-top:5px;padding:6px 10px;
  background:rgba(8,19,31,.62);
  border:1px solid rgba(108,124,140,.36);
  border-radius:var(--radius-sm);
  color:var(--paper);font-size:14px;text-align:left;cursor:pointer;
  transition:border-color var(--ease),background-color var(--ease);
}
.copy-chip:hover{border-color:var(--cyan)}
.copy-chip.is-copied{border-color:var(--green);background:rgba(124,255,178,.1)}
.copy-value{font-size:14px;letter-spacing:.04em;word-break:break-all}
.copy-hint{
  flex:0 0 auto;padding:2px 8px;border-radius:var(--pill);
  font-size:11.5px;color:var(--cyan);border:1px solid rgba(34,240,224,.42);
}
.copy-status{min-height:1.2em;margin-top:10px;font-size:12.5px;color:var(--green)}
.copy-status[data-state="ok"]{color:var(--green)}
.copy-status[data-state="warn"]{color:var(--amber)}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 22px;padding-block:18px;
  border-top:1px solid rgba(108,124,140,.24);
  font-size:13px;color:var(--steel-2);
}
.footer-copy{letter-spacing:.03em}
.legal-list{display:flex;flex-wrap:wrap;gap:14px}
.footer-icp{color:var(--steel);letter-spacing:.04em}

/* ---------- 排版组件 ---------- */
.num{
  font-family:var(--font-num);letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}
.section{padding-block:clamp(30px,4.4vw,60px)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:12px 24px;margin-bottom:22px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.2em;color:var(--cyan);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px}
.section-title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(24px,3.4vw,32px);line-height:1.15;letter-spacing:.01em;
}
.section-note{max-width:54ch;font-size:13.5px;color:var(--steel-2)}
.lede{max-width:62ch;font-size:clamp(16px,1.9vw,18px);color:var(--paper-2)}
.muted{color:var(--steel-2)}
.small{font-size:12.5px}
.hairline{height:1px;border:0;background:rgba(108,124,140,.3)}

/* ---------- 面板与数据卡 ---------- */
.panel{
  background:linear-gradient(160deg,rgba(16,38,58,.94),rgba(11,27,43,.94));
  border:1px solid rgba(108,124,140,.28);
  border-radius:var(--radius-lg);
  padding:clamp(18px,2.4vw,28px);
}
.panel-paper{
  background:var(--paper);color:var(--paper-ink);
  border:1px solid var(--paper-2);
  border-radius:var(--radius-lg);
  padding:clamp(16px,2.2vw,26px);
}
.panel-paper .muted,.panel-paper .section-note{color:#5C6A76}
.stat{
  display:flex;flex-direction:column;gap:4px;
  padding:16px 18px;border-radius:var(--radius-md);
  background:rgba(16,38,58,.8);
  border:1px solid rgba(108,124,140,.26);
  transition:transform var(--ease),border-color var(--ease);
}
.stat:hover{transform:translateY(-3px);border-color:rgba(34,240,224,.45)}
.stat-value{font-family:var(--font-num);font-size:clamp(28px,4vw,44px);line-height:1;color:var(--cyan);letter-spacing:.06em}
.stat-label{font-size:12.5px;letter-spacing:.12em;color:var(--steel-2)}
.stat-unit{font-size:13px;color:var(--steel)}

/* ---------- 网格 ---------- */
.grid-2{display:grid;gap:clamp(14px,2vw,22px);grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-3{display:grid;gap:clamp(14px,2vw,20px);grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}

/* ---------- 面包屑 ---------- */
.breadcrumbs{padding-block:16px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--steel-2)}
.crumb-link{color:var(--steel-2);transition:color var(--ease)}
.crumb-link:hover{color:var(--cyan)}
.crumb-sep{color:var(--steel);opacity:.7}
.crumb-current{color:var(--paper);font-weight:600}

/* ---------- 主题筛选（仅筛选当前页已有内容） ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:9px 12px;border-radius:var(--pill);
  background:rgba(16,38,58,.66);
  border:1px solid rgba(108,124,140,.28);
}
.filter-btn{
  padding:.45em 1em;border-radius:var(--pill);
  background:transparent;border:1px solid rgba(183,194,204,.32);
  color:var(--paper-2);font-size:13px;font-weight:700;letter-spacing:.04em;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.filter-btn:hover{color:var(--cyan);border-color:var(--cyan)}
.filter-btn[aria-pressed="true"]{background:var(--orange);border-color:var(--orange);color:#180C04}
.filter-count{margin-left:auto;padding-left:10px;font-size:12.5px;color:var(--steel-2)}
.filter-empty{
  margin-top:14px;padding:14px 16px;
  border:1px dashed rgba(255,200,87,.5);border-radius:var(--radius-sm);
  background:rgba(255,200,87,.07);color:var(--amber);font-size:14px;
}

/* ---------- 图片容器（页面阶段放置占位图） ---------- */
.media-frame{
  position:relative;overflow:hidden;
  border-radius:var(--radius-md);
  border:1px solid rgba(108,124,140,.28);
  background:
    linear-gradient(140deg,rgba(34,240,224,.12),rgba(255,107,44,.10) 55%,rgba(8,19,31,0) 86%),
    linear-gradient(180deg,#0E2237,#08131F);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-frame--wide{aspect-ratio:21/9}
.media-figure{display:grid;gap:10px;margin:0}
.media-caption{font-size:12.5px;color:var(--steel-2)}
.media-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--pill);
  font-size:12px;letter-spacing:.06em;
  color:var(--steel-2);
  background:rgba(8,19,31,.55);
  border:1px solid rgba(108,124,140,.4);
}
.tag-cyan{color:var(--cyan);border-color:rgba(34,240,224,.45);background:rgba(34,240,224,.08)}
.tag-orange{color:var(--orange);border-color:rgba(255,107,44,.45);background:rgba(255,107,44,.09)}
.tag-amber{color:var(--amber);border-color:rgba(255,200,87,.45);background:rgba(255,200,87,.08)}

/* ---------- 显现 ---------- */
[data-reveal]{opacity:0;transform:translateY(14px);transition:opacity 200ms ease,transform 200ms ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 小屏微调 ---------- */
@media (max-width:560px){
  .brand-sub{display:none}
  .rail-meta{gap:12px}
  .rail-note{font-size:11.5px}
  .filter-count{margin-left:0;padding-left:0;width:100%}
}
@media (max-width:400px){
  .rail-meta-item:last-child{display:none}
}

/* ---------- 无障碍：减少动态 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .site-nav{transition:none}
  .scroll-thumb{transition:none}
  [data-reveal]{opacity:1;transform:none}
  .stat:hover{transform:none}
}