/* ============================================================
   亚星赛场 · 共享外壳 /assets/site.css
   深空蓝黑底 · 荧光青锚点 · 竞技橙标记 · 印刷纸白叠层
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --bg:#070B14;
  --panel:#0E1524;
  --line:#1B2536;
  --ink:#F2F6FF;
  --mute:#8FA3BF;
  --cyan:#35F0D0;
  --orange:#FF6A2B;
  --ochre:#B4552F;
  --paper:#E8E3D9;

  --rail-w:96px;
  --rail-w-open:248px;
  --bar-h:56px;
  --shell-max:1280px;

  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:200ms;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:ui-monospace,"JetBrains Mono","SF Mono",Consolas,"Liberation Mono",monospace;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0;}
img,svg,video,picture{max-width:100%;}
a{color:inherit;}
button{font:inherit;color:inherit;}
hr{border:0;}

::selection{
  background:var(--cyan);
  color:#04120F;
}

:where(a,button,summary,[tabindex]):focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}

/* ---------- 3. 中文排版基座 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.08;
  color:var(--ink);
}

.numeric{
  font-family:var(--font-num);
  letter-spacing:.04em;
  line-height:1;
  font-variant-numeric:tabular-nums;
}

.prose{
  max-width:62ch;
  color:var(--mute);
}
.prose p + p{margin-top:1em;}
.prose strong{color:var(--ink);font-weight:700;}

.lede{
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.7;
  color:var(--mute);
  max-width:56ch;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.18em;
  color:var(--cyan);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  background:var(--cyan);
  flex:0 0 auto;
}

.rule{
  height:1px;
  background:var(--line);
  border:0;
  margin:0;
}

/* ---------- 4. 容器与节奏 ---------- */
.container{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,48px);
}

.section{padding-block:clamp(40px,6vw,84px);}
.section--tight{padding-block:clamp(24px,3.5vw,44px);}

#main-content{
  padding-inline-start:var(--rail-w);
  min-height:60vh;
}

/* ---------- 5. Skip link ---------- */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:400;
  transform:translateY(-180%);
  padding:10px 16px;
  background:var(--cyan);
  color:#04120F;
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.04em;
  text-decoration:none;
  border:1px solid #04120F;
  transition:transform var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

/* ---------- 6. 移动顶条 ---------- */
.mobile-bar{display:none;}

.mobile-bar__brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--ink);
}
.mobile-bar__mark{
  width:3px;
  height:20px;
  background:var(--cyan);
  flex:0 0 auto;
}
.mobile-bar__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:16px;
  letter-spacing:-.01em;
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:8px 11px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--ink);
  font-size:12px;
  letter-spacing:.08em;
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover,
.nav-toggle:focus-visible{border-color:var(--cyan);color:var(--cyan);}

.nav-toggle__bars{
  display:grid;
  gap:4px;
  width:14px;
}
.nav-toggle__bars span{
  display:block;
  height:1.5px;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{
  transform:translateY(2.75px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{
  transform:translateY(-2.75px) rotate(-45deg);
}

/* ---------- 7. 左侧轨道 ---------- */
.rail{
  position:fixed;
  inset-block:0;
  inset-inline-start:0;
  z-index:120;
  width:var(--rail-w);
  background:var(--panel);
  border-inline-end:1px solid var(--line);
  overflow:hidden;
  transition:width var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.rail:hover,
.rail:focus-within{width:var(--rail-w-open);}

.rail__inner{
  display:flex;
  flex-direction:column;
  gap:32px;
  width:var(--rail-w-open);
  min-height:100%;
  padding:26px 0 18px;
}

/* 品牌锁定 */
.brand{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding-inline:26px;
  text-decoration:none;
  color:var(--ink);
}
.brand__rule{
  display:block;
  width:2px;
  height:24px;
  background:var(--cyan);
  flex:0 0 auto;
  margin-top:3px;
}
.brand__text{
  display:flex;
  flex-direction:column;
  gap:3px;
  white-space:nowrap;
  opacity:0;
  transition:opacity 140ms var(--ease);
}
.rail:hover .brand__text,
.rail:focus-within .brand__text{opacity:1;}

.brand__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  letter-spacing:-.02em;
  line-height:1.05;
}
.brand__sub{
  font-family:var(--font-num);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--mute);
}

/* 导航 */
.rail__nav{flex:0 0 auto;}

.nav-list{
  display:flex;
  flex-direction:column;
  gap:1px;
  margin:0;
  padding:0;
  list-style:none;
}

.nav-link{
  position:relative;
  display:grid;
  grid-template-columns:22px 1fr;
  align-items:center;
  gap:12px;
  padding:11px 20px 11px 36px;
  color:var(--mute);
  font-size:15px;
  line-height:1.2;
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.nav-link::before{
  content:"";
  position:absolute;
  inset-inline-start:0;
  inset-block:5px;
  width:2px;
  background:transparent;
  transition:background-color var(--dur) var(--ease);
}

.nav-link__idx{
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.06em;
  color:#5A6B84;
  text-underline-offset:4px;
  transition:color var(--dur) var(--ease);
}

.nav-link__label{
  display:inline-flex;
  align-items:center;
  gap:7px;
  opacity:0;
  transition:opacity 140ms var(--ease);
}
.rail:hover .nav-link__label,
.rail:focus-within .nav-link__label{opacity:1;}

.nav-link__badge{
  font-family:var(--font-num);
  font-size:10px;
  line-height:1.5;
  padding:0 5px;
  background:var(--orange);
  color:#10131A;
  letter-spacing:.06em;
}

.nav-link:hover{
  color:var(--ink);
  background:rgba(53,240,208,.06);
}
.nav-link:hover::before{background:var(--cyan);}
.nav-link:hover .nav-link__idx{color:var(--cyan);}

.nav-link[aria-current="page"]{
  color:var(--ink);
  background:rgba(53,240,208,.09);
}
.nav-link[aria-current="page"]::before{background:var(--cyan);}
.nav-link[aria-current="page"] .nav-link__idx{
  color:var(--cyan);
  text-decoration:underline;
}

/* 轨道底部 */
.rail__foot{
  margin-top:auto;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding-inline:26px;
}

.rail__status{
  display:flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.04em;
  color:var(--mute);
  white-space:nowrap;
}
.rail__status-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(53,240,208,.85);
  flex:0 0 auto;
}

.rail__cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 14px;
  background:var(--cyan);
  color:#03110E;
  border:1px solid var(--cyan);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  white-space:nowrap;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.rail__cta:hover,
.rail__cta:focus-visible{background:transparent;color:var(--cyan);}

.quick-list{
  display:flex;
  flex-direction:column;
  gap:7px;
  margin:0;
  padding:0;
  list-style:none;
}
.quick-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--mute);
  text-decoration:none;
  white-space:nowrap;
  transition:color var(--dur) var(--ease);
}
.quick-link__dot{
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--orange);
  flex:0 0 auto;
}
.quick-link:hover,
.quick-link:focus-visible{color:var(--cyan);}

.rail__meta{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding-inline:26px;
  white-space:nowrap;
}
.rail__meta-text{
  font-family:var(--font-num);
  font-size:10px;
  letter-spacing:.02em;
  color:#5A6B84;
}
.rail__icp{
  font-size:10px;
  letter-spacing:.04em;
  color:#4A5A72;
}

/* 遮罩 */
.nav-scrim{display:none;}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  position:relative;
  background:#050810;
  border-block-start:1px solid var(--line);
  padding-block-end:clamp(24px,4vw,52px);
}

.footer__rule{
  height:2px;
  background:linear-gradient(90deg,var(--cyan) 0 20%,var(--ochre) 20% 27%,var(--line) 27% 100%);
}

.footer__inner{
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,48px);
}

.footer__grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.5fr;
  gap:clamp(24px,4vw,56px);
  padding-block:clamp(32px,5vw,56px);
}

.footer__col{min-width:0;}

.footer__brand{
  display:inline-flex;
  align-items:center;
  gap:11px;
  text-decoration:none;
  color:var(--ink);
  margin-bottom:14px;
}
.footer__brand-name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  letter-spacing:-.02em;
}

.footer__tagline{
  font-size:14px;
  line-height:1.75;
  color:var(--mute);
  max-width:32ch;
}
.footer__meta{
  margin-top:14px;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.05em;
  color:#5A6B84;
}

.footer__heading{
  font-family:var(--font-num);
  font-size:11px;
  font-weight:400;
  letter-spacing:.18em;
  color:var(--mute);
  padding-bottom:9px;
  margin-bottom:12px;
  border-block-end:1px solid var(--line);
}

.footer__list{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}

.footer__link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding-block:5px;
  font-size:14px;
  color:var(--ink);
  text-decoration:none;
  transition:color var(--dur) var(--ease);
}
.footer__link::before{
  content:"";
  width:0;
  height:1px;
  background:var(--cyan);
  transition:width var(--dur) var(--ease);
}
.footer__link:hover,
.footer__link:focus-visible{color:var(--cyan);}
.footer__link:hover::before,
.footer__link:focus-visible::before{width:10px;}

.footer__contact{
  margin-bottom:13px;
  line-height:1.65;
}
.footer__label{
  display:block;
  font-family:var(--font-num);
  font-size:10px;
  letter-spacing:.14em;
  color:var(--ochre);
  margin-bottom:2px;
}
.footer__value{
  display:block;
  font-family:var(--font-num);
  font-size:12.5px;
  letter-spacing:.02em;
  color:var(--ink);
  word-break:break-all;
}
.footer__hint{
  display:block;
  margin-top:3px;
  font-size:11.5px;
  line-height:1.6;
  color:#6B7C95;
}

.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-block:18px 0;
  border-block-start:1px solid var(--line);
  font-family:var(--font-num);
  font-size:11.5px;
  letter-spacing:.05em;
  color:#5A6B84;
}
.footer__copy{margin:0;}
.footer__icp{margin:0;color:#4A5A72;}

/* ---------- 9. 通用按钮 / 标签 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 22px;
  background:transparent;
  border:1px solid var(--line);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),
             background-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.btn:hover,
.btn:focus-visible{
  transform:translateY(-2px);
  border-color:var(--cyan);
  color:var(--cyan);
}

.btn--primary{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#03110E;
}
.btn--primary:hover,
.btn--primary:focus-visible{
  background:transparent;
  color:var(--cyan);
}

.btn--ghost{color:var(--mute);}
.btn--ghost:hover,
.btn--ghost:focus-visible{color:var(--cyan);}

.btn-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

.tag{
  display:inline-flex;
  align-items:stretch;
  gap:8px;
  padding:4px 10px 4px 4px;
  background:var(--panel);
  border:1px solid var(--line);
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mute);
}
.tag::before{
  content:"";
  width:3px;
  background:var(--ochre);
  flex:0 0 auto;
}
.tag--accent{
  color:var(--cyan);
  border-color:rgba(53,240,208,.42);
}
.tag--accent::before{background:var(--cyan);}

/* ---------- 10. 纸白叠层卡 ---------- */
.paper-card{
  position:relative;
  padding:20px 22px;
  background:var(--paper);
  border:1px solid #C9C2B4;
  box-shadow:6px 6px 0 rgba(27,37,54,.95);
  color:#12171F;
}
.paper-card__label{
  display:block;
  margin-bottom:8px;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.14em;
  color:#7B4028;
}
.paper-card__title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(20px,2.4vw,26px);
  letter-spacing:-.02em;
  line-height:1.15;
  color:#0C1220;
}
.paper-card__body{
  margin-top:10px;
  font-size:15px;
  line-height:1.7;
  color:#2A3342;
}

/* ---------- 11. 数据条带 ---------- */
.data-strip{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  background:var(--panel);
  border:1px solid var(--line);
}
.data-strip__cell{
  padding:18px 20px;
  border-inline-end:1px solid var(--line);
}
.data-strip__cell:last-child{border-inline-end:0;}
.data-strip__num{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(28px,3.4vw,48px);
  line-height:1;
  letter-spacing:.02em;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.data-strip__label{
  display:block;
  margin-top:9px;
  font-family:var(--font-num);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mute);
}

/* ---------- 12. 图像容器基础件 ---------- */
.media{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  aspect-ratio:16/10;
  background:
    repeating-linear-gradient(135deg,rgba(53,240,208,.07) 0 2px,transparent 2px 9px),
    var(--panel);
  border:1px solid var(--line);
}
.media > img,
.media > svg,
.media > picture,
.media > picture > img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media::after{
  content:"";
  position:absolute;
  inset-inline-start:0;
  inset-block-end:0;
  width:44px;
  height:2px;
  background:var(--cyan);
}
.media--wide{aspect-ratio:21/9;}
.media--tall{aspect-ratio:3/4;}
.media__caption{
  margin-top:10px;
  font-size:12.5px;
  line-height:1.6;
  color:var(--mute);
}

/* ---------- 13. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0;
  padding:0;
  list-style:none;
  font-family:var(--font-num);
  font-size:11.5px;
  letter-spacing:.06em;
  color:var(--mute);
}
.breadcrumb a{
  color:var(--mute);
  text-decoration:none;
  border-block-end:1px solid transparent;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.breadcrumb a:hover,
.breadcrumb a:focus-visible{
  color:var(--cyan);
  border-block-end-color:var(--cyan);
}
.breadcrumb__sep{color:var(--ochre);}

/* ---------- 14. 滚动显现 ---------- */
.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
.reveal-ready [data-reveal][data-revealed="true"]{
  opacity:1;
  transform:none;
}

/* ---------- 15. 平板 ---------- */
@media (max-width:1023px){
  #main-content{
    padding-inline-start:0;
    padding-block-start:var(--bar-h);
  }

  .mobile-bar{
    display:flex;
    position:fixed;
    inset-block-start:0;
    inset-inline:0;
    z-index:130;
    height:var(--bar-h);
    align-items:center;
    justify-content:space-between;
    padding-inline:16px;
    background:rgba(7,11,20,.94);
    border-block-end:1px solid var(--line);
  }

  .rail{
    inset-block-start:var(--bar-h);
    inset-block-end:0;
    width:min(86vw,340px);
    transform:translateX(-104%);
    box-shadow:none;
  }
  .rail:hover,
  .rail:focus-within{width:min(86vw,340px);}

  .rail[data-open="true"]{
    transform:translateX(0);
    box-shadow:0 0 0 1px var(--line),28px 0 64px rgba(0,0,0,.66);
  }

  .rail__inner{
    width:100%;
    padding-block:20px 26px;
    overflow-y:auto;
    overscroll-behavior:contain;
  }

  .brand__text,
  .nav-link__label{opacity:1;}

  .nav-link{padding-block:12px;}

  .footer__grid{
    grid-template-columns:1fr 1fr;
    gap:clamp(24px,4vw,40px);
  }
  .footer__col--brand,
  .footer__col--contact{grid-column:1 / -1;}

  .nav-scrim{
    display:block;
    position:fixed;
    inset-block-start:var(--bar-h);
    inset-inline:0;
    inset-block-end:0;
    z-index:110;
    background:rgba(4,7,13,.72);
    opacity:0;
    pointer-events:none;
    transition:opacity var(--dur) var(--ease);
  }
  .nav-scrim[data-shown="true"]{
    opacity:1;
    pointer-events:auto;
  }

  .nav-open .rail{overscroll-behavior:contain;}
}

/* ---------- 16. 手机 ---------- */
@media (max-width:600px){
  body{font-size:16px;}

  .footer__grid{grid-template-columns:1fr;}

  .footer__bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
  }

  .data-strip__cell{
    border-inline-end:0;
    border-block-end:1px solid var(--line);
  }
  .data-strip__cell:last-child{border-block-end:0;}

  .btn{width:100%;}
  .btn-row .btn{flex:1 1 auto;}
}

/* ---------- 17. 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;
  }

  .reveal-ready [data-reveal]{
    opacity:1 !important;
    transform:none !important;
  }

  .btn:hover,
  .btn:focus-visible{transform:none;}
}