/* ===== 亚星赛事 · 共享站点样式 /assets/site.css ===== */

:root{
  --ink:#0A1628;
  --panel:#0F2138;
  --line:#1E3A5F;
  --orange:#FF6A2C;
  --cyan:#22E0D6;
  --amber:#FFC24B;
  --text:#E8EEF7;
  --muted:#8FA6C4;
  --teal:#0E2A33;
  --paper:#F3EFE7;

  --font-sans:'Noto Sans SC','Source Han Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-mono:'JetBrains Mono','IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --gutter:clamp(16px,4vw,52px);
  --maxw:1240px;
  --rail:52px;
  --radius:14px;
  --radius-lg:20px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:24px}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(30,58,95,.30) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,58,95,.30) 1px,transparent 1px),
    radial-gradient(1100px 520px at 50% -12%,rgba(255,106,44,.10),transparent 70%);
  background-size:96px 96px,96px 96px,100% 100%;
  background-attachment:fixed,fixed,fixed;
  background-position:center top;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
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}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img,svg,picture{max-width:100%}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- 排版基础 ---------- */
.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.main-content{display:block;min-height:46vh;position:relative}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:11px 20px;border-radius:999px;
  font-size:14px;font-weight:600;letter-spacing:.05em;white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .22s,border-color .22s,color .22s,transform .22s;
}
.btn--signal{background:var(--orange);color:#0A1628;box-shadow:0 0 24px rgba(255,106,44,.28)}
.btn--signal:hover{background:#ff8450;transform:translateY(-1px)}
.btn--ghost{background:rgba(15,33,56,.65);border-color:var(--line);color:var(--text)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn--cyan{background:rgba(34,224,214,.12);border-color:rgba(34,224,214,.45);color:var(--cyan)}
.btn--cyan:hover{background:rgba(34,224,214,.2)}

/* ---------- 状态徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 11px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
  color:var(--muted);border:1px solid var(--line);background:rgba(15,33,56,.7);
}
.status-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--cyan);
  background:rgba(34,224,214,.08);
  border:1px solid rgba(34,224,214,.32);
  white-space:nowrap;
}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
@keyframes pulse-fade{0%,100%{opacity:1}50%{opacity:.45}}
[data-pulse]{animation:pulse-fade 4s ease-in-out infinite}

/* ---------- 跳转条 ---------- */
.skip-link{
  position:fixed;top:10px;left:50%;z-index:200;
  transform:translate(-50%,-200%);
  padding:10px 22px;
  background:var(--orange);color:#0A1628;
  font-size:14px;font-weight:700;letter-spacing:.06em;
  border-radius:999px;
  box-shadow:0 12px 30px rgba(0,0,0,.45);
  transition:transform .2s ease;
}
.skip-link:focus{transform:translate(-50%,0)}

/* ---------- 页头 ---------- */
.site-header{
  position:relative;
  z-index:50;
  background:linear-gradient(180deg,rgba(15,33,56,.97),rgba(10,22,40,.99));
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.site-header::before{
  content:"";
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(400px 200px at 10% -40%,rgba(255,106,44,.20),transparent 70%),
    radial-gradient(460px 220px at 90% -50%,rgba(34,224,214,.16),transparent 70%);
}
.site-header::after{
  content:"";
  position:absolute;top:0;left:-35%;width:32%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(34,224,214,.05),transparent);
  pointer-events:none;
  animation:header-scan 12s linear infinite;
}
@keyframes header-scan{0%{transform:translateX(0)}100%{transform:translateX(430%)}}

.header-grid{
  position:relative;
  display:grid;
  grid-template-columns:var(--rail) minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(10px,2vw,28px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(16px,2.6vw,30px) var(--gutter) clamp(12px,1.8vw,20px);
}
.header-rail{
  align-self:stretch;
  display:flex;flex-direction:column;align-items:center;justify-content:space-between;
  gap:10px;min-height:64px;
  padding-right:10px;
  border-right:1px solid rgba(30,58,95,.9);
}
.rail-text{
  writing-mode:vertical-rl;
  font-family:var(--font-mono);
  font-size:10px;letter-spacing:.26em;
  color:var(--muted);
  text-transform:uppercase;
}
.rail-ticks{
  flex:1 1 auto;width:8px;min-height:26px;
  background:repeating-linear-gradient(180deg,var(--line) 0 1px,transparent 1px 7px);
}
.masthead{text-align:center;min-width:0}
.masthead-kicker{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.36em;text-transform:uppercase;
  color:var(--cyan);
}
.masthead-brand{
  display:inline-block;
  margin-block:2px;
  font-size:clamp(30px,5vw,52px);
  font-weight:900;
  font-stretch:88%;
  line-height:1.06;
  letter-spacing:-.03em;
  color:var(--text);
  transition:color .25s;
}
.masthead-brand:hover{color:var(--orange)}
.masthead-sub{
  font-size:11.5px;letter-spacing:.14em;
  color:var(--muted);
}
.header-side{
  display:flex;align-items:center;gap:10px;
  justify-self:end;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;gap:8px;
  padding:8px 13px;border-radius:999px;
  border:1px solid var(--line);
  background:rgba(15,33,56,.75);
  color:var(--text);
  transition:color .2s,border-color .2s;
}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle-bars i{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .25s,opacity .2s}
.nav-toggle-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em}
.site-header[data-open] .nav-toggle{color:var(--orange);border-color:rgba(255,106,44,.55)}
.site-header[data-open] .nav-toggle-bars i:nth-child(1){transform:translateY(5px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars i:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle-bars i:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* 导航 */
.site-nav{
  position:relative;
  z-index:1;
  border-top:1px solid rgba(30,58,95,.75);
  background:rgba(10,22,40,.55);
}
.nav-list{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:clamp(2px,1.6vw,16px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.nav-item a{
  position:relative;display:block;
  padding:13px 12px;
  font-size:13.5px;font-weight:500;letter-spacing:.1em;
  color:var(--muted);
  transition:color .2s;
}
.nav-item a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:8px;height:2px;
  background:var(--orange);
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.nav-item a:hover,
.nav-item a:focus-visible{color:var(--text)}
.nav-item a:hover::after,
.nav-item a:focus-visible::after{transform:scaleX(1)}
.nav-item a[aria-current="page"]{color:var(--orange)}
.nav-item a[aria-current="page"]::after{transform:scaleX(1)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(16px,2.6vw,28px) var(--gutter) 0;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.1em;
  color:var(--muted);
}
.breadcrumbs a{transition:color .2s}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs .sep{color:var(--line)}
.breadcrumbs [aria-current="page"]{color:var(--text)}

/* ---------- 栅格与面板 ---------- */
.grid{display:grid;gap:clamp(16px,2.4vw,32px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.panel{
  position:relative;
  overflow:hidden;
  padding:clamp(18px,2.6vw,32px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(15,33,56,.96),rgba(10,22,40,.96));
}
.panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(232,238,247,.03) 0 1px,transparent 1px 4px);
}

/* ---------- 编号章节 ---------- */
.chapter{padding-block:clamp(44px,7vw,104px)}
.chapter-head{
  display:flex;align-items:flex-end;flex-wrap:wrap;
  gap:clamp(12px,2vw,26px);
  margin-bottom:clamp(20px,3vw,36px);
}
.chapter-num{
  font-family:var(--font-mono);
  font-size:clamp(58px,13vw,168px);
  font-weight:700;line-height:.78;letter-spacing:-.05em;
  color:rgba(30,58,95,.95);
  font-variant-numeric:tabular-nums;
}
.chapter-kicker{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--cyan);
}
.chapter-title{
  font-size:clamp(20px,3vw,30px);
  font-weight:800;line-height:1.25;letter-spacing:-.01em;
  color:var(--text);
}

/* ---------- 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  margin:0;
  border:1px solid var(--line);
  border-radius:var(--radius);
  aspect-ratio:16 / 9;
  background:
    radial-gradient(120% 120% at 18% 8%,rgba(34,224,214,.14),transparent 62%),
    radial-gradient(120% 120% at 88% 92%,rgba(255,106,44,.12),transparent 62%),
    var(--teal);
}
.media-frame > img,
.media-frame > svg,
.media-frame > picture,
.media-frame > picture > img{
  display:block;width:100%;height:100%;object-fit:cover;
}
.media-frame--wide{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}
.media-caption{
  position:absolute;left:12px;bottom:12px;
  padding:4px 10px;border-radius:999px;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  color:var(--text);
  background:rgba(10,22,40,.74);
  border:1px solid var(--line);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,132px);
  color:var(--text);
  border-top:1px solid var(--line);
  background:
    radial-gradient(620px 260px at 12% 0%,rgba(34,224,214,.10),transparent 72%),
    radial-gradient(520px 240px at 92% 0%,rgba(255,106,44,.09),transparent 72%),
    linear-gradient(180deg,#0F2138,#08111E);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--orange),var(--cyan) 58%,transparent);
  opacity:.6;
}
.footer-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.9fr);
  gap:clamp(30px,5vw,70px);
  max-width:var(--maxw);
  margin-inline:auto;
  padding:clamp(42px,6vw,82px) var(--gutter) clamp(26px,4vw,42px);
}
.footer-brand-name{
  display:inline-block;
  font-size:clamp(26px,3.4vw,38px);
  font-weight:900;font-stretch:88%;
  letter-spacing:-.03em;line-height:1.1;
  color:var(--text);
  transition:color .2s;
}
.footer-brand-name:hover{color:var(--orange)}
.footer-brand-sub{
  margin-top:6px;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.16em;
  color:var(--muted);
}
.footer-legend{
  display:flex;flex-wrap:wrap;gap:8px 16px;
  margin-top:22px;
}
.legend-item{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.06em;
  color:var(--muted);
}
.legend-swatch{display:inline-block;width:10px;height:10px;border-radius:3px}
.legend-swatch--login{background:var(--orange);box-shadow:0 0 10px rgba(255,106,44,.5)}
.legend-swatch--index{background:var(--cyan);box-shadow:0 0 10px rgba(34,224,214,.5)}
.legend-swatch--roster{background:var(--amber);box-shadow:0 0 10px rgba(255,194,75,.45)}

.footer-columns{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(22px,3vw,44px);
}
.footer-col-title{
  margin-bottom:14px;padding-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;font-weight:500;letter-spacing:.26em;text-transform:uppercase;
  color:var(--cyan);
  border-bottom:1px solid var(--line);
}
.footer-link-list li + li{margin-top:9px}
.footer-link{
  display:inline-block;
  font-size:14px;color:var(--muted);
  transition:color .2s,transform .2s;
}
.footer-link:hover{color:var(--text);transform:translateX(3px)}

.footer-contact-list li + li{margin-top:10px}
.contact-line{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:3px 8px;
  font-size:13px;line-height:1.7;
}
.contact-key{
  flex:0 0 auto;min-width:2.6em;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.14em;
  color:var(--cyan);
}
.contact-val{flex:1 1 auto;min-width:0;color:var(--text);word-break:break-word}
.copy-btn{
  flex:0 0 auto;
  padding:2px 9px;border-radius:999px;
  font-family:var(--font-mono);
  font-size:10px;letter-spacing:.08em;
  color:var(--muted);
  border:1px solid var(--line);
  transition:color .2s,border-color .2s,background-color .2s;
}
.copy-btn:hover{color:var(--cyan);border-color:rgba(34,224,214,.55)}
.copy-btn.is-copied{color:var(--ink);background:var(--cyan);border-color:var(--cyan)}

.footer-base{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;
  gap:10px 22px;
  max-width:var(--maxw);
  margin-inline:auto;
  padding:18px var(--gutter) clamp(26px,4vw,40px);
  border-top:1px dashed rgba(30,58,95,.9);
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);
}
.footer-icp{color:var(--muted)}
.footer-note{color:var(--muted);opacity:.9}
.footer-base-spacer{flex:1 1 auto}
.footer-base-links{display:flex;flex-wrap:wrap;gap:4px 16px}
.footer-base-link{color:var(--muted);transition:color .2s}
.footer-base-link:hover{color:var(--cyan)}
.footer-year{color:var(--muted);font-variant-numeric:tabular-nums}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:clamp(14px,3vw,30px);
  bottom:clamp(14px,3vw,30px);
  z-index:90;
  display:grid;place-content:center;gap:2px;
  width:58px;height:58px;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(15,33,56,.94);
  color:var(--cyan);
  font-family:var(--font-mono);
  box-shadow:0 12px 34px rgba(0,0,0,.45);
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .25s,visibility .25s,transform .25s,border-color .2s;
}
.to-top[data-visible]{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--cyan)}
.to-top-arrow{font-size:13px;line-height:1;color:var(--text)}
.to-top-pct{font-size:11px;line-height:1;font-variant-numeric:tabular-nums}

/* ---------- 平板 ---------- */
@media (max-width:940px){
  .header-grid{grid-template-columns:minmax(0,1fr) auto;padding-block:14px 12px}
  .header-rail{display:none}
  .masthead{text-align:left}
  .masthead-kicker{font-size:10px;letter-spacing:.3em}
  .masthead-brand{font-size:clamp(26px,6.4vw,36px)}
  .masthead-sub{font-size:11px;letter-spacing:.1em}
  .status-badge{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none}
  .site-header[data-open] .site-nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px 0 14px}
  .nav-item a{padding:13px var(--gutter);border-bottom:1px dashed rgba(30,58,95,.7)}
  .nav-item a::after{left:var(--gutter);right:auto;width:18px;bottom:9px}
  .nav-item:last-child a{border-bottom:0}

  .footer-inner{grid-template-columns:1fr}
  .footer-columns{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- 手机 ---------- */
@media (max-width:620px){
  body{background-attachment:scroll,scroll,scroll;background-size:64px 64px,64px 64px,100% 100%}
  .grid--2,.grid--3{grid-template-columns:1fr}
  .footer-columns{grid-template-columns:1fr}
  .chapter-head{align-items:flex-start;flex-direction:column;gap:8px}
  .chapter-num{font-size:clamp(52px,20vw,92px)}
  .footer-base{font-size:11px;gap:8px 14px}
  .footer-base-spacer{display:none}
  .to-top{width:52px;height:52px}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .site-header::after{display:none}
  [data-pulse]{animation:none}
}