/* ==========================================================================
   亚星赛场 · 共享外壳样式  /assets/site.css
   深空黑底 + 荧光青数据 + 暖橙行动 + 奶油纸注释
   ========================================================================== */

/* --- 1. 变量 -------------------------------------------------------------- */
:root{
  color-scheme: dark;

  --ink:#0A0E14;
  --ink-2:#111A24;
  --cyan:#3DF5D0;
  --cyan-dim:#1E8F7C;
  --orange:#FF7A2F;
  --paper:#F3E9D2;
  --brown:#241C14;
  --mist:#8A97A6;
  --white:#FFFFFF;
  --red:#E5484D;

  --text:rgba(255,255,255,.9);
  --text-dim:#8A97A6;
  --line:rgba(255,255,255,.10);
  --line-cyan:rgba(61,245,208,.32);
  --glass:rgba(17,26,36,.66);

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --header-h:72px;

  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;

  --t-12:12px; --t-14:14px; --t-17:17px; --t-22:22px;
  --t-32:32px; --t-52:52px; --t-84:84px;
}

/* --- 2. 重置与中文排版 ---------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}

body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg,video{display:block;max-width:100%;}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--white);font-weight:800;line-height:1.2;letter-spacing:-.02em;}
h1{font-size:clamp(2.4rem,7vw,5.5rem);font-weight:900;}
h2{font-size:clamp(1.5rem,3.4vw,2.4rem);}
h3{font-size:clamp(1.1rem,2vw,1.4rem);}
p{margin:0 0 1em;max-width:68ch;text-wrap:pretty;}
ul,ol{margin:0;padding:0;}
li{list-style:none;}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--white);}
code,kbd,samp,pre{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
::selection{background:var(--cyan);color:var(--ink);}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px;}

/* 跳过导航 */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  padding:10px 16px;border-radius:2px;
  background:var(--cyan);color:var(--ink);
  font-size:14px;font-weight:700;
  transform:translateY(-200%);
  transition:transform .16s ease;
}
.skip-link:focus{transform:none;color:var(--ink);}

/* --- 3. 通用布局 ---------------------------------------------------------- */
.shell{
  width:min(calc(100% - var(--gutter) * 2),var(--shell));
  margin-inline:auto;
}
.shell--narrow{
  width:min(calc(100% - var(--gutter) * 2),820px);
  margin-inline:auto;
}
.section{padding-block:clamp(40px,7vw,88px);}
.section:first-child{padding-top:clamp(28px,4vw,52px);}

.grid{display:grid;gap:clamp(16px,2.4vw,28px);}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr));}
.grid--split{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);}
.grid--sidebar{grid-template-columns:minmax(0,2fr) minmax(0,1fr);align-items:start;}

.lead{
  font-size:var(--t-22);
  line-height:1.65;
  color:rgba(255,255,255,.82);
  max-width:44ch;
}

/* --- 4. 通用组件 ---------------------------------------------------------- */
/* 章节编号 */
.chapter{display:flex;align-items:baseline;gap:14px;margin-bottom:18px;}
.chapter__index{
  font-family:var(--font-mono);
  font-size:var(--t-32);
  font-weight:800;
  line-height:1;
  letter-spacing:.02em;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.chapter__title{
  margin:0;
  font-size:clamp(1.35rem,2.6vw,2rem);
  font-weight:800;
  letter-spacing:-.02em;
}

/* 面板层 */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,28px);
  border:1px solid var(--line);
  border-radius:2px;
  background:var(--ink-2);
}
.panel--glass{
  background:var(--glass);
  border-color:rgba(255,255,255,.14);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
}
.panel--ink{background:var(--ink);}
.panel--paper{
  background:var(--paper);
  color:var(--brown);
  border-color:rgba(36,28,20,.2);
}
.panel--paper h1,.panel--paper h2,.panel--paper h3,.panel--paper h4{color:var(--brown);}
.panel--paper p{color:rgba(36,28,20,.88);}
.panel--paper a{color:#0d5f51;}
.panel--paper a:hover{color:var(--brown);}
.panel__label{
  display:block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
.panel--paper .panel__label{color:rgba(36,28,20,.6);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.02em;
  white-space:nowrap;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{background:var(--orange);border-color:var(--orange);color:var(--brown);}
.btn--primary:hover{background:#ff9152;border-color:#ff9152;color:var(--brown);transform:translateY(-1px);}
.btn--ghost{background:transparent;border-color:var(--line-cyan);color:var(--cyan);}
.btn--ghost:hover{background:rgba(61,245,208,.08);border-color:var(--cyan);color:var(--cyan);}
.btn--quiet{background:transparent;border-color:var(--line);color:var(--text-dim);}
.btn--quiet:hover{border-color:var(--mist);color:var(--white);}

/* 状态标签 */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  border:1px solid var(--line-cyan);
  border-radius:2px;
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.pill--live{background:rgba(255,122,47,.14);border-color:var(--orange);color:var(--orange);}

/* 数据 */
.stat{display:grid;gap:4px;}
.stat__value{
  font-family:var(--font-mono);
  font-size:clamp(1.6rem,3.4vw,2.6rem);
  font-weight:800;
  line-height:1;
  letter-spacing:-.01em;
  color:var(--white);
  font-variant-numeric:tabular-nums;
}
.stat__value.is-pulsing{animation:score-pulse .24s ease;}
.stat__label{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--mist);
}
@keyframes score-pulse{
  0%{color:var(--cyan);transform:scale(1);}
  45%{color:var(--cyan);transform:scale(1.06);}
  100%{color:var(--white);transform:scale(1);}
}

/* 刻度虚线 */
.rule{
  height:1px;width:100%;margin:0;border:0;
  background:repeating-linear-gradient(90deg,var(--line-cyan) 0 8px,transparent 8px 16px);
}

/* 面包屑 */
.crumbs{
  padding-top:18px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}
.crumbs ol{display:flex;flex-wrap:wrap;gap:6px 10px;}
.crumbs li{display:flex;align-items:center;gap:10px;}
.crumbs li:not(:last-child)::after{content:"/";color:var(--cyan-dim);}
.crumbs a{color:var(--mist);}
.crumbs a:hover{color:var(--cyan);}
.crumbs [aria-current="page"]{color:var(--text);}

/* 标签页 */
.tabs{display:grid;gap:20px;}
.tabs__list{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--line);}
.tab{
  appearance:none;
  padding:10px 14px;
  border:0;
  border-bottom:2px solid transparent;
  background:transparent;
  color:var(--text-dim);
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.tab:hover{color:var(--white);}
.tab[aria-selected="true"]{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
  background:rgba(61,245,208,.06);
}
.tabs__panel{animation:tab-slide .18s ease both;}
.tabs__panel[hidden]{display:none;}
@keyframes tab-slide{from{opacity:0;transform:translateX(8px);}to{opacity:1;transform:none;}}

/* 媒体容器（页面阶段放图） */
.media{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:2px;
  background:linear-gradient(160deg,var(--ink-2),#060a0f);
}
.media__img{
  width:100%;height:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  filter:saturate(.95) contrast(1.05);
}
.media--wide .media__img{aspect-ratio:21/9;}
.media--tall .media__img{aspect-ratio:3/4;}
.media--square .media__img{aspect-ratio:1/1;}
.media::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  opacity:.5;
  mix-blend-mode:screen;
  background:
    linear-gradient(180deg,rgba(61,245,208,.07),transparent 42%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 4px);
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:10px 14px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(255,255,255,.82);
  background:linear-gradient(0deg,rgba(10,14,20,.92),transparent);
}
.media__tag{position:absolute;top:10px;left:10px;z-index:2;}

/* 长文 */
.prose{max-width:72ch;font-size:var(--t-17);line-height:1.85;color:var(--text);}
.prose h2{margin:1.8em 0 .6em;font-size:clamp(1.3rem,2.2vw,1.7rem);}
.prose h3{margin:1.5em 0 .5em;font-size:1.15rem;}
.prose p{margin:0 0 1.1em;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em;}
.prose li{list-style:disc;margin-bottom:.4em;}
.prose li::marker{color:var(--cyan-dim);}
.prose strong{color:var(--white);}

/* 滚动进度 */
.scroll-progress{
  position:fixed;top:0;left:0;z-index:150;
  width:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transition:width .1s linear;
  pointer-events:none;
}

/* 显现 */
[data-reveal]{transition:opacity .5s ease,transform .5s ease;}
.js-ready [data-reveal]{opacity:0;transform:translateY(12px);}
.js-ready [data-reveal].is-visible{opacity:1;transform:none;}

/* --- 5. 头部 -------------------------------------------------------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,14,20,.88);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.site-header::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-dim) 30%,transparent 68%);
  opacity:.7;
  pointer-events:none;
}
.header-grid{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(12px,2vw,32px);
  width:min(calc(100% - var(--gutter) * 2),var(--shell));
  min-height:var(--header-h);
  margin-inline:auto;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--white);text-decoration:none;}
.brand:hover{color:var(--white);}
.brand__mark{
  display:grid;place-items:center;
  width:34px;height:34px;
  border:1px solid var(--line-cyan);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  background:linear-gradient(180deg,rgba(61,245,208,.16),rgba(61,245,208,0));
}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand__meta{
  font-family:var(--font-mono);
  font-size:10px;letter-spacing:.14em;
  color:var(--mist);text-transform:uppercase;
}

/* 命令栏 */
.nav{display:flex;justify-content:center;min-width:0;}
.nav__list{display:flex;align-items:center;gap:2px;list-style:none;}
.nav__item{display:block;}
.nav__link{
  display:inline-flex;align-items:baseline;gap:7px;
  padding:10px 12px;
  border-bottom:2px solid transparent;
  color:rgba(255,255,255,.72);
  font-size:14px;font-weight:700;letter-spacing:.01em;
  white-space:nowrap;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.nav__link:hover{color:var(--white);background:rgba(255,255,255,.04);}
.nav__index{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.08em;
  color:var(--cyan-dim);
  font-variant-numeric:tabular-nums;
}
.nav__label{display:inline-block;}
.nav__link[aria-current="page"]{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
  background:rgba(61,245,208,.06);
}
.nav__link[aria-current="page"] .nav__index{color:var(--cyan);}

/* 头部动作 */
.header-actions{display:flex;align-items:center;gap:8px;}

/* 移动端按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 12px;
  border:1px solid var(--line);
  border-radius:2px;
  background:transparent;
  color:var(--white);
  font-family:var(--font-sans);
  font-size:13px;font-weight:700;
  letter-spacing:.04em;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--line-cyan);color:var(--cyan);}
.nav-toggle__bars{position:relative;display:block;width:16px;height:2px;background:var(--cyan);}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;
  width:16px;height:2px;background:var(--cyan);
  transition:transform .18s ease,opacity .18s ease;
}
.nav-toggle__bars::before{top:-5px;}
.nav-toggle__bars::after{top:5px;}
.site-header[data-open] .nav-toggle__bars{background:transparent;}
.site-header[data-open] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg);}
.site-header[data-open] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg);}

/* --- 6. 页脚 -------------------------------------------------------------- */
.site-footer{
  position:relative;
  margin-top:clamp(48px,8vw,120px);
  background:var(--ink-2);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-dim) 38%,transparent 72%);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1.3fr;
  gap:clamp(24px,4vw,48px);
  width:min(calc(100% - var(--gutter) * 2),var(--shell));
  margin-inline:auto;
  padding:clamp(40px,6vw,72px) 0 28px;
}
.footer-seg{min-width:0;}
.footer-seg--brand{max-width:38ch;}
.footer-heading{
  margin:0 0 14px;
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.footer-brand__name{margin:0 0 4px;font-size:22px;font-weight:900;letter-spacing:-.01em;color:var(--white);}
.footer-brand__meta{
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.14em;
  color:var(--mist);text-transform:uppercase;
}
.footer-brand__text{margin:0;font-size:14px;line-height:1.75;color:var(--text-dim);max-width:34ch;}

.footer-links{display:grid;gap:8px;}
.footer-link{
  display:inline-flex;align-items:baseline;gap:8px;
  padding-bottom:1px;
  border-bottom:1px solid transparent;
  color:var(--text);
  font-size:14px;
}
.footer-link:hover{color:var(--cyan);border-bottom-color:var(--cyan);}
.footer-link__index{
  font-family:var(--font-mono);
  font-size:11px;color:var(--cyan-dim);
  font-variant-numeric:tabular-nums;
}

.footer-list{display:grid;gap:14px;}
.footer-service__item{display:grid;gap:3px;}
.footer-service__label{
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--mist);
}
.footer-service__value{font-size:14px;line-height:1.6;color:var(--white);word-break:break-word;}
.footer-note{margin:14px 0 0;font-size:12.5px;line-height:1.7;color:var(--mist);max-width:36ch;}

.footer-legal{
  grid-column:1/-1;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 28px;
  margin-top:6px;padding-top:22px;
  border-top:1px solid var(--line);
}
.footer-legal .footer-heading{margin:0;width:100%;}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:8px 24px;}
.footer-legal__meta{display:flex;flex-wrap:wrap;gap:6px 22px;}
.footer-icp,.footer-copy{margin:0;font-family:var(--font-mono);font-size:12px;color:var(--mist);}

/* --- 7. 响应式 ------------------------------------------------------------ */
@media (max-width:1023px){
  .header-grid{grid-template-columns:minmax(0,1fr) auto auto;}
  .nav-toggle{display:inline-flex;}
  .nav{
    position:fixed;
    top:var(--header-h);left:0;right:0;bottom:0;
    display:block;
    padding:20px var(--gutter) 56px;
    border-top:1px solid var(--line);
    background:rgba(10,14,20,.985);
    overflow-y:auto;
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(-8px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s linear;
  }
  .site-header[data-open] .nav{opacity:1;visibility:visible;pointer-events:auto;transform:none;}
  .site-header[data-open]::after{opacity:.35;}
  .nav__list{flex-direction:column;align-items:stretch;gap:0;}
  .nav__item{width:100%;}
  .nav__link{
    display:flex;width:100%;
    padding:16px 4px;
    font-size:17px;
    border-bottom:1px solid var(--line);
    border-left:2px solid transparent;
  }
  .nav__link[aria-current="page"]{
    border-bottom-color:var(--line);
    border-left-color:var(--cyan);
    padding-left:14px;
    background:linear-gradient(90deg,rgba(61,245,208,.12),transparent 72%);
  }
  .grid--split,.grid--sidebar{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-legal{grid-column:1/-1;}
}

@media (max-width:900px){
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr);}
}

@media (max-width:639px){
  body{font-size:15.5px;}
  .lead{font-size:18px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-legal{flex-direction:column;align-items:flex-start;}
  .footer-legal__links{gap:10px 20px;}
}

@media (max-width:560px){
  .header-actions .btn--ghost{display:none;}
  .header-actions .btn{padding:9px 13px;font-size:13px;}
}

@media (max-width:460px){
  .nav-toggle__text{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;}
  .nav-toggle{padding:10px;}
}

/* --- 8. 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;
  }
  .js-ready [data-reveal]{opacity:1;transform:none;}
  .scroll-progress{transition:none;}
  .tabs__panel{animation:none;}
}