/* ============================================================
   竞博网页 · 共享站点样式 /assets/site.css
   深空仪表盘 + 编辑部纸面 · 粗边框与硬阴影
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#060A16;
  --ink-2:#0A1226;
  --panel:#101A33;
  --panel-2:#16233F;
  --paper:#F2E9D8;
  --paper-2:#E4D9C2;
  --ink-deep:#1C1611;
  --cyan:#21E7D0;
  --magenta:#FF3FA4;
  --orange:#FF8A2B;
  --grey:#8E9AB5;
  --green:#6FE39B;
  --amber:#FFC24B;

  --text:#E6EDFB;
  --text-dim:#8E9AB5;
  --line:#223052;
  --line-strong:#2F4272;
  --placeholder:#5A6789;

  --rail-w:268px;
  --pad-x:clamp(18px,4vw,56px);
  --gap:clamp(16px,2vw,28px);
  --maxw:1180px;

  --font-head:"Archivo Black","Space Grotesk","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Inter","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --shadow-hard:6px 6px 0 0 rgba(33,231,208,.16);
  --shadow-mag:6px 6px 0 0 rgba(255,63,164,.28);
  --dur:.18s;
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:24px;
}

body{
  margin:0;
  padding-left:var(--rail-w);
  min-height:100vh;
  background:
    radial-gradient(1100px 620px at 88% -8%, rgba(33,231,208,.10), transparent 62%),
    radial-gradient(900px 520px at -10% 44%, rgba(255,63,164,.08), transparent 60%),
    var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

img,svg,video{max-width:100%;display:block;}
[hidden]{display:none !important;}

ul,ol{margin:0;padding:0;list-style:none;}

a{
  color:var(--cyan);
  text-decoration-thickness:2px;
  text-underline-offset:3px;
}
a:hover{color:var(--orange);}

button{font:inherit;}

h1,h2,h3,h4,h5,h6{
  margin:0 0 .55em;
  color:#fff;
  font-family:var(--font-head);
  font-weight:900;
  line-height:1.08;
  letter-spacing:-.01em;
}
h1{font-size:clamp(34px,5.2vw,68px);}
h2{font-size:clamp(26px,3.4vw,44px);}
h3{font-size:clamp(20px,2.2vw,28px);}
h4{font-size:clamp(17px,1.6vw,21px);}

p{margin:0 0 1.1em;}

hr{border:0;}

:focus-visible{
  outline:3px solid var(--orange);
  outline-offset:3px;
}

#main-content{display:block;min-height:60vh;}

/* ---------- 3. 跳转链接 ---------- */
.skip-link{
  position:fixed;
  left:14px;
  top:-140px;
  z-index:200;
  padding:12px 20px;
  background:var(--orange);
  color:var(--ink-deep);
  font-family:var(--font-head);
  font-size:15px;
  text-decoration:none;
  border:2px solid var(--ink-deep);
  transition:top var(--dur) ease;
}
.skip-link:focus{top:14px;color:var(--ink-deep);}

/* ---------- 4. 头部：左侧固定导航轨 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  bottom:0;
  width:var(--rail-w);
  z-index:100;
  background:linear-gradient(180deg,#0B1428 0%,#060A16 68%);
  border-right:2px solid var(--cyan);
  box-shadow:7px 0 0 0 rgba(33,231,208,.10);
}

.rail{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:20px;
  height:100%;
  padding:24px 18px 22px;
  overflow-y:auto;
  overscroll-behavior:contain;
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:18px;
  border-bottom:2px solid var(--line);
  color:inherit;
  text-decoration:none;
}
.brand:hover{color:inherit;}
.brand-text{display:block;min-width:0;}
.brand-mark{
  flex:none;
  display:grid;
  place-items:center;
  width:48px;
  height:48px;
  background:var(--cyan);
  color:var(--ink-deep);
  border:2px solid var(--cyan);
  box-shadow:4px 4px 0 0 rgba(255,63,164,.55);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
}
.brand-name{
  display:block;
  font-family:var(--font-head);
  font-size:19px;
  line-height:1.15;
  color:#fff;
}
.brand-line{
  display:block;
  margin-top:3px;
  font-size:12px;
  line-height:1.5;
  color:var(--text-dim);
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 14px;
  background:var(--panel);
  color:var(--text);
  border:2px solid var(--line-strong);
  border-radius:0;
  cursor:pointer;
  font-size:14px;
  font-weight:700;
  line-height:1;
  transition:background var(--dur),color var(--dur),border-color var(--dur);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle[aria-expanded="true"]{
  background:var(--cyan);
  border-color:var(--cyan);
  color:var(--ink-deep);
}
.nav-toggle-icon{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  background:currentColor;
}
.nav-toggle-icon::before,
.nav-toggle-icon::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:currentColor;
}
.nav-toggle-icon::before{top:-5px;}
.nav-toggle-icon::after{top:5px;}
.nav-toggle-text{font-size:14px;}

/* 导航 */
.site-nav{flex:1 1 auto;min-height:0;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-item{display:block;}
.nav-link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:11px 14px;
  border:2px solid transparent;
  color:var(--text-dim);
  text-decoration:none;
  font-family:var(--font-head);
  font-size:15px;
  line-height:1.35;
  transition:color var(--dur),background var(--dur),border-color var(--dur),transform var(--dur);
}
.nav-idx{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.04em;
  opacity:.65;
}
.nav-label{display:inline-block;}
.nav-link:hover,
.nav-link:focus-visible{
  color:#fff;
  background:var(--panel);
  border-color:var(--line-strong);
  transform:translateX(3px);
}
.nav-link[aria-current="page"],
.nav-link[aria-current="page"]:hover,
.nav-link[aria-current="page"]:focus-visible{
  color:var(--ink-deep);
  background:var(--cyan);
  border-color:var(--cyan);
  box-shadow:4px 4px 0 0 rgba(255,63,164,.6);
  transform:none;
}

/* 工具区 */
.rail-tools{
  display:flex;
  flex-direction:column;
  gap:11px;
  padding-top:16px;
  border-top:2px solid var(--line);
}
.tool-label{
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-dim);
}
.search-input{
  width:100%;
  padding:11px 13px;
  border:2px solid var(--line-strong);
  border-radius:0;
  background:var(--ink-2);
  color:var(--text);
  font-family:var(--font-body);
  font-size:14px;
  line-height:1.5;
  transition:border-color var(--dur),box-shadow var(--dur);
}
.search-input::placeholder{color:var(--placeholder);}
.search-input:focus{
  border-color:var(--cyan);
  outline:none;
  box-shadow:4px 4px 0 0 rgba(33,231,208,.35);
}
.search-input:disabled{opacity:.5;cursor:not-allowed;}
.version-chip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin:0;
  font-size:13px;
  color:var(--text-dim);
}
.version-chip .mono{
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:700;
  color:var(--amber);
}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 18px;
  border:2px solid var(--cyan);
  border-radius:0;
  background:transparent;
  color:var(--cyan);
  font-family:var(--font-head);
  font-size:15px;
  line-height:1.2;
  text-decoration:none;
  cursor:pointer;
  box-shadow:5px 5px 0 0 rgba(33,231,208,.22);
  transition:transform var(--dur),box-shadow var(--dur),background var(--dur),color var(--dur),border-color var(--dur);
}
.btn:hover,
.btn:focus-visible{
  color:var(--cyan);
  background:rgba(33,231,208,.10);
  transform:translate(-2px,-2px);
  box-shadow:7px 7px 0 0 rgba(33,231,208,.34);
}
.btn-cta{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink-deep);
  box-shadow:5px 5px 0 0 rgba(255,63,164,.55);
}
.btn-cta:hover,
.btn-cta:focus-visible{
  background:var(--orange);
  border-color:var(--orange);
  color:var(--ink-deep);
  box-shadow:8px 8px 0 0 rgba(255,63,164,.75);
}
.rail-cta{width:100%;}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  margin-top:clamp(64px,9vw,120px);
  border-top:2px solid var(--cyan);
  background:linear-gradient(180deg,#0A1226 0%,#060A16 100%);
  box-shadow:0 -7px 0 0 rgba(33,231,208,.10);
}
.footer-inner{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:clamp(40px,6vw,72px) var(--pad-x) 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:36px 28px;
}
.footer-brand{display:flex;flex-direction:column;gap:10px;}
.footer-brand .brand-mark{width:44px;height:44px;font-size:14px;}
.footer-brand-name{
  margin:0;
  font-family:var(--font-head);
  font-size:20px;
  line-height:1.2;
  color:#fff;
}
.footer-tagline{
  margin:0;
  font-size:13px;
  line-height:1.6;
  color:var(--text-dim);
}
.footer-meta{
  margin:0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cyan);
}
.footer-col{display:flex;flex-direction:column;min-width:0;}
.footer-title{
  margin:0 0 14px;
  padding-bottom:10px;
  border-bottom:2px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.footer-list{display:flex;flex-direction:column;gap:9px;}
.footer-list a{
  display:inline-block;
  padding-bottom:2px;
  border-bottom:2px solid transparent;
  color:var(--text-dim);
  font-size:15px;
  line-height:1.5;
  text-decoration:none;
  transition:color var(--dur),border-color var(--dur);
}
.footer-list a:hover,
.footer-list a:focus-visible{
  color:#fff;
  border-bottom-color:var(--orange);
}
.footer-list--contact{gap:14px;}
.footer-list--contact li{display:flex;flex-direction:column;gap:3px;}
.footer-key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--placeholder);
}
.footer-value{
  font-size:14px;
  line-height:1.65;
  color:var(--text);
  overflow-wrap:anywhere;
}
.footer-value.mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.02em;
  color:var(--cyan);
}
.footer-note{
  margin:38px 0 0;
  padding:16px 18px;
  border-left:4px solid var(--amber);
  background:rgba(255,194,75,.06);
  font-size:13px;
  line-height:1.75;
  color:var(--text-dim);
}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:28px;
  padding-top:20px;
  border-top:2px solid var(--line);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.03em;
  color:#6B7A9C;
}
.footer-legal p{margin:0;}

/* ---------- 7. 通用正文组件 ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--pad-x);
}
.wrap--narrow{max-width:820px;}

.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}
.col-12{grid-column:span 12;}

.section{padding:clamp(36px,5vw,72px) 0;}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:12px 18px;
  margin-bottom:clamp(18px,2.5vw,30px);
  padding-bottom:14px;
  border-bottom:2px solid var(--line);
}
.section-num{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--orange);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0 0 12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--orange);
}
.lede{
  max-width:62ch;
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.7;
  color:var(--text);
}
.note{font-size:13px;line-height:1.7;color:var(--text-dim);}
.mono{font-family:var(--font-mono);letter-spacing:.02em;}
.rule{height:2px;margin:clamp(28px,4vw,48px) 0;background:var(--line);}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

.panel{
  padding:clamp(20px,3vw,32px);
  background:var(--panel);
  border:2px solid var(--line-strong);
  box-shadow:var(--shadow-hard);
}
.panel--alt{background:var(--panel-2);}
.paper{
  padding:clamp(20px,3vw,36px);
  background:var(--paper);
  color:var(--ink-deep);
  border:2px solid var(--ink-deep);
  box-shadow:8px 8px 0 0 rgba(33,231,208,.30);
}
.paper h1,.paper h2,.paper h3,.paper h4,.paper h5,.paper h6{color:var(--ink-deep);}
.paper p{color:var(--ink-deep);}
.paper a{color:#0B5F55;}
.paper a:hover{color:#9C2A63;}
.paper .note{color:#5C5045;}
.paper .mono{color:#3A2E24;}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  background:var(--ink-2);
  border:2px solid var(--line-strong);
  color:var(--text-dim);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  text-transform:uppercase;
  line-height:1.5;
}
.tag--cyan{border-color:var(--cyan);color:var(--cyan);}
.tag--magenta{border-color:var(--magenta);color:var(--magenta);}
.tag--green{border-color:var(--green);color:var(--green);}
.tag--amber{border-color:var(--amber);color:var(--amber);}

.status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:3px 9px;
  border:2px solid currentColor;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.6;
}
.status::before{content:"";width:7px;height:7px;background:currentColor;}
.status--stable{color:var(--green);}
.status--warn{color:var(--amber);}
.status--live{color:var(--cyan);}

.breadcrumbs{margin:clamp(20px,3vw,34px) 0 0;}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--text-dim);
}
.breadcrumb-list li{display:flex;align-items:center;gap:8px;}
.breadcrumb-list li + li::before{content:"/";color:var(--line-strong);}
.breadcrumb-list a{color:var(--text-dim);text-decoration:none;}
.breadcrumb-list a:hover{color:var(--cyan);}
.breadcrumb-list [aria-current="page"]{color:var(--text);}

/* ---------- 8. 图片容器基础规则 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:2px solid var(--cyan);
  background:
    linear-gradient(135deg, rgba(33,231,208,.16), rgba(255,63,164,.14)),
    repeating-linear-gradient(45deg,#0A1226 0 14px,#0D1830 14px 28px);
  box-shadow:8px 8px 0 0 rgba(33,231,208,.16);
}
.media-frame > img,
.media-frame > svg,
.media-frame > video{
  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-frame--alt{
  border-color:var(--magenta);
  box-shadow:8px 8px 0 0 rgba(255,63,164,.20);
}

/* ---------- 9. 滚动辅助 ---------- */
.read-progress{
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:3px;
  z-index:120;
  background:rgba(34,48,82,.35);
  pointer-events:none;
}
.read-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--cyan),var(--magenta));
}

.to-top{
  position:fixed;
  right:20px;
  bottom:20px;
  z-index:95;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 14px;
  background:var(--ink-2);
  color:var(--cyan);
  border:2px solid var(--cyan);
  border-radius:0;
  cursor:pointer;
  font-family:var(--font-head);
  font-size:13px;
  line-height:1.2;
  box-shadow:4px 4px 0 0 rgba(33,231,208,.30);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity var(--dur),transform var(--dur),visibility var(--dur),box-shadow var(--dur),color var(--dur);
}
.to-top.is-on{opacity:1;visibility:visible;transform:none;}
.to-top:hover{
  color:var(--ink-deep);
  background:var(--cyan);
  box-shadow:7px 7px 0 0 rgba(33,231,208,.45);
}

/* ---------- 10. 滚动显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(8px);
  transition:opacity .45s ease,transform .45s ease;
}
[data-reveal].is-visible{opacity:1;transform:none;}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1023px){
  body{
    padding-left:0;
    padding-bottom:106px;
  }
  .site-header{
    top:auto;
    left:0;
    right:0;
    bottom:0;
    width:auto;
    border-right:0;
    border-top:2px solid var(--cyan);
    box-shadow:0 -7px 0 0 rgba(33,231,208,.10);
    background:linear-gradient(180deg,#0A1226 0%,#070C1A 100%);
  }
  .rail{
    flex-direction:row;
    align-items:center;
    flex-wrap:wrap;
    gap:10px;
    height:auto;
    padding:10px 12px;
    overflow:visible;
  }
  .brand{
    flex:0 0 auto;
    gap:10px;
    padding-bottom:0;
    border-bottom:0;
  }
  .brand-line{display:none;}
  .brand-mark{width:40px;height:40px;font-size:13px;}
  .brand-name{font-size:16px;}

  .nav-toggle{display:inline-flex;margin-left:auto;}
  .rail-cta{
    width:auto;
    flex:0 0 auto;
    padding:9px 12px;
    font-size:13px;
    box-shadow:3px 3px 0 0 rgba(255,63,164,.55);
  }

  .rail-tools{display:none;}

  .site-nav{
    position:absolute;
    left:0;
    right:0;
    bottom:100%;
    display:none;
    max-height:62vh;
    overflow-y:auto;
    padding:12px;
    background:#080E1F;
    border-top:2px solid var(--cyan);
    box-shadow:0 -7px 0 0 rgba(33,231,208,.10);
  }
  .site-header[data-open] .site-nav{display:block;}
  .nav-list{gap:2px;}
  .nav-link{font-size:16px;padding:12px 12px 12px 14px;}

  .read-progress{left:0;}
  .to-top{right:14px;bottom:120px;}

  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .col-4,.col-5,.col-7,.col-8,.col-12{grid-column:span 6;}
}

@media (min-width:600px) and (max-width:1023px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}

@media (min-width:768px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}

@media (min-width:1100px){
  .footer-grid{
    grid-template-columns:1.5fr .85fr .85fr .85fr 1.5fr;
    gap:44px 32px;
  }
}

@media (max-width:599px){
  body{font-size:16px;}
  .grid-12{grid-template-columns:repeat(2,minmax(0,1fr));}
  .col-4,.col-5,.col-7,.col-8,.col-12{grid-column:span 2;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .brand-name{font-size:15px;}
  .rail-cta{padding:8px 10px;font-size:12px;}
}

/* ---------- 12. 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;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
  }
  .btn:hover,.btn:focus-visible{transform:none;}
  .nav-link:hover,.nav-link:focus-visible{transform:none;}
  .to-top{transform:none;}
}