/* =========================================================
   竞博数据 · 共享样式 /assets/site.css
   参数年鉴 · 工业仪表 · 对角切割 · 极细边界
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,hr{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,picture,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;border-spacing:0}
[hidden]{display:none !important}
[id]{scroll-margin-top:112px}

/* ---------- 2. Tokens ---------- */
:root{
  --c-indigo:#0E1730;
  --c-indigo-deep:#16223F;
  --c-indigo-mid:#22305A;
  --c-line:#334272;
  --c-amber:#F2A03C;
  --c-amber-deep:#C97A1E;
  --c-cyan:#34D1BF;
  --c-violet:#7C6BF2;
  --c-terra:#D2543E;
  --c-paper:#F6F7F9;
  --c-lime:#E4E7EC;
  --c-ink:#131A2B;
  --c-silver:#C9D0DA;
  --c-muted:#55607A;

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif CJK SC",SimSun,Georgia,serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --shell:1240px;
  --island:1160px;
  --gutter:clamp(16px,4vw,40px);
  --t-fast:120ms;
  --t-base:180ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-soft:0 1px 2px rgba(19,26,43,.05),0 14px 34px -26px rgba(19,26,43,.55);
}

/* ---------- 3. Base ---------- */
body{
  background:var(--c-paper);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
@media (min-width:1024px){ body{font-size:17px} }

h1,h2,h3{font-weight:800;line-height:1.22;letter-spacing:-.01em}
h1{font-size:clamp(36px,6vw,72px)}
h2{font-size:clamp(26px,3.6vw,40px)}
h3{font-size:clamp(19px,2vw,24px);font-weight:700;line-height:1.35}
strong,b{font-weight:700}

:focus-visible{outline:2px solid var(--c-amber);outline-offset:3px;border-radius:3px}
::selection{background:var(--c-amber);color:var(--c-indigo)}

.mono,.tag,.eyebrow,.header-index__value,.header-index__label,.footer-strip__num,.footer-strip__label,
.nav-link__idx,.section-head__idx,.card__idx,.breadcrumb__list,.footer-brand__kicker,.brand__tagline{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
}
.mono{letter-spacing:.02em}

.visually-hidden{
  position:absolute;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0;
}

/* ---------- 4. Layout ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin:0 auto;
  padding-inline:var(--gutter);
}
.grid-12{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:clamp(16px,2vw,28px);
}
.col--3{grid-column:span 3}
.col--4{grid-column:span 4}
.col--5{grid-column:span 5}
.col--6{grid-column:span 6}
.col--7{grid-column:span 7}
.col--8{grid-column:span 8}
.col--12{grid-column:span 12}

.section{padding:clamp(48px,7vw,96px) 0}
.section--dark{background:var(--c-indigo);color:var(--c-paper)}
.section--dark .prose{color:var(--c-silver)}
.section--paper{background:var(--c-paper)}
.section--lime{background:var(--c-lime)}
.rule{height:1px;border:0;background:var(--c-lime);margin:0}

/* ---------- 5. Skip link ---------- */
.skip-link{
  position:fixed;top:8px;left:8px;z-index:200;
  transform:translateY(-180%);
  display:inline-flex;align-items:center;
  padding:10px 18px;
  background:var(--c-amber);
  color:var(--c-indigo);
  font-size:14px;font-weight:700;letter-spacing:.04em;
  border-radius:999px;
  box-shadow:0 10px 30px -14px rgba(14,23,48,.9);
  transition:transform var(--t-base) var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translateY(0)}

/* ---------- 6. Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding-bottom:4px;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(180deg,rgba(246,247,249,.97) 0%,rgba(246,247,249,.76) 60%,rgba(246,247,249,0) 100%);
  opacity:0;
  transition:opacity var(--t-base) var(--ease);
}
.site-header[data-scrolled]::before{opacity:1}

.progress-rail{
  position:relative;
  display:block;
  width:100%;
  height:2px;
  background:rgba(51,66,114,.16);
}
.progress-rail__bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:left center;
  background:linear-gradient(90deg,var(--c-amber) 0%,var(--c-amber) 62%,var(--c-cyan) 100%);
  transition:transform 80ms linear;
}

.nav-island{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(10px,1.6vw,22px);
  width:min(var(--island),calc(100% - clamp(24px,8vw,80px)));
  margin:10px auto 0;
  padding:10px 12px 10px 16px;
  background:rgba(14,23,48,.94);
  border:1px solid var(--c-line);
  border-radius:999px;
  color:var(--c-paper);
  box-shadow:0 16px 40px -30px rgba(6,10,22,.95);
  transition:padding var(--t-base) var(--ease),margin var(--t-base) var(--ease),box-shadow var(--t-base) var(--ease);
}
.site-header[data-scrolled] .nav-island{
  margin-top:6px;
  padding:7px 10px 7px 14px;
  box-shadow:0 20px 44px -28px rgba(6,10,22,.98);
}

/* Brand */
.brand{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:2px 4px;
  border-radius:999px;
}
.brand__mark{
  flex:0 0 auto;
  width:34px;height:34px;
  display:grid;place-items:center;
  border:1px solid var(--c-line);
  border-radius:11px;
  background:var(--c-indigo-deep);
  color:var(--c-amber);
  font-family:var(--font-mono);
  font-size:12px;font-weight:700;letter-spacing:.06em;
  transition:border-color var(--t-base) var(--ease),color var(--t-base) var(--ease);
}
.brand:hover .brand__mark{border-color:var(--c-amber)}
.brand__text{display:grid;gap:1px}
.brand__name{
  font-size:16px;font-weight:800;line-height:1.25;
  letter-spacing:.02em;color:var(--c-paper);
}
.brand__tagline{
  font-size:10px;line-height:1.3;letter-spacing:.14em;
  color:var(--c-silver);opacity:.78;
}

/* Navigation */
.nav-scroll{
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  overflow-y:hidden;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-list{display:flex;align-items:center;gap:2px;white-space:nowrap}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:8px 13px;
  border-radius:999px;
  color:var(--c-silver);
  font-size:14px;
  font-weight:500;
  line-height:1.4;
  transition:color var(--t-base) var(--ease),background-color var(--t-base) var(--ease);
}
.nav-link__idx{font-size:10px;letter-spacing:.08em;opacity:.62;transition:opacity var(--t-base) var(--ease)}
.nav-link__label{letter-spacing:.02em}
.nav-link::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:5px;
  height:1px;
  background:var(--c-amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t-base) var(--ease);
}
.nav-link:hover{color:var(--c-paper);background:rgba(242,160,60,.10)}
.nav-link:hover .nav-link__idx{opacity:.95}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{
  background:var(--c-amber);
  color:var(--c-indigo);
  font-weight:700;
}
.nav-link[aria-current="page"] .nav-link__idx{color:var(--c-indigo);opacity:.85}
.nav-link[aria-current="page"]::after{transform:scaleX(0)}

.nav-extra{display:none}

/* Header utility */
.header-index{
  flex:0 0 auto;
  display:flex;align-items:center;gap:8px;
  padding-left:14px;
  border-left:1px solid var(--c-line);
}
.header-index__label{font-size:10px;letter-spacing:.16em;color:var(--c-silver);opacity:.7}
.header-index__value{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--c-cyan)}
.header-cta{flex:0 0 auto}

/* Mobile toggle */
.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  width:40px;height:40px;
  border:1px solid var(--c-line);
  border-radius:12px;
  color:var(--c-paper);
  transition:border-color var(--t-base) var(--ease),background-color var(--t-base) var(--ease);
}
.nav-toggle:hover{border-color:var(--c-amber);background:rgba(242,160,60,.12)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars span{
  display:block;height:1.5px;width:100%;
  background:currentColor;border-radius:1px;
  transition:transform var(--t-base) var(--ease),opacity var(--t-fast) var(--ease);
}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:nth-child(2){opacity:0}
.site-header[data-open] .nav-toggle__bars span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- 7. Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;justify-content:center;
  gap:8px;
  padding:11px 20px;
  border:1px solid transparent;
  border-radius:999px;
  font-size:14px;font-weight:700;line-height:1.4;letter-spacing:.03em;
  cursor:pointer;
  transition:background-color var(--t-base) var(--ease),color var(--t-base) var(--ease),
             border-color var(--t-base) var(--ease),transform var(--t-fast) var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn--amber{background:var(--c-amber);color:var(--c-indigo);border-color:var(--c-amber)}
.btn--amber:hover{background:var(--c-amber-deep);border-color:var(--c-amber-deep);color:var(--c-paper)}
.btn--ghost{background:transparent;color:var(--c-paper);border-color:var(--c-line)}
.btn--ghost:hover{border-color:var(--c-amber);color:var(--c-amber)}
.btn--line{background:transparent;color:var(--c-ink);border-color:var(--c-line)}
.btn--line:hover{border-color:var(--c-amber-deep);color:var(--c-amber-deep)}
.btn--sm{padding:8px 14px;font-size:13px}

/* ---------- 8. Text components ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--c-amber-deep);
}
.eyebrow::before{content:"";width:24px;height:1px;background:currentColor}

.section-head{display:grid;gap:14px;margin-bottom:clamp(24px,3vw,40px)}
.section-head__idx{font-size:12px;letter-spacing:.18em;color:var(--c-amber-deep)}
.section-head__title{font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.24;letter-spacing:-.01em}
.section-head__note{
  max-width:34em;
  font-family:var(--font-serif);
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.75;
  color:var(--c-muted);
}
.section--dark .section-head__idx{color:var(--c-amber)}
.section--dark .section-head__note{color:var(--c-silver)}

.prose{max-width:34em;font-size:inherit;line-height:1.85}
.prose p + p{margin-top:1.05em}
.prose a{border-bottom:1px solid var(--c-amber);color:inherit;transition:color var(--t-base) var(--ease)}
.prose a:hover{color:var(--c-amber-deep)}

/* ---------- 9. Breadcrumb ---------- */
.breadcrumb{padding-top:24px}
.breadcrumb__list{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--c-muted);
}
.breadcrumb__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:var(--c-line)}
.breadcrumb__item a{transition:color var(--t-base) var(--ease)}
.breadcrumb__item a:hover{color:var(--c-amber-deep)}

/* ---------- 10. Cards / tables / tags ---------- */
.card{
  display:grid;gap:12px;
  padding:clamp(18px,2vw,26px);
  background:#fff;
  border:1px solid var(--c-lime);
  box-shadow:var(--shadow-soft);
  transition:border-color var(--t-base) var(--ease),transform var(--t-base) var(--ease),filter var(--t-base) var(--ease);
}
.card:hover{border-color:var(--c-amber);transform:translateY(-2px);filter:brightness(1.02)}
.card__idx{font-size:12px;letter-spacing:.14em;color:var(--c-amber-deep)}
.card__title{font-size:19px;font-weight:700;line-height:1.45}
.card__meta{font-size:14px;line-height:1.75;color:var(--c-muted)}

.table-scroll{
  width:100%;
  overflow-x:auto;
  border:1px solid var(--c-lime);
  background:#fff;
}
.data-table{width:100%;min-width:660px;font-size:14px}
.data-table caption{
  padding:14px 16px;
  text-align:left;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.1em;
  color:var(--c-muted);
  border-bottom:1px solid var(--c-lime);
}
.data-table th,.data-table td{
  padding:12px 16px;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--c-lime);
  line-height:1.7;
}
.data-table thead th{
  background:var(--c-indigo);
  color:var(--c-paper);
  font-family:var(--font-mono);
  font-size:12px;font-weight:600;letter-spacing:.1em;
  white-space:nowrap;
}
.data-table tbody tr:nth-child(even){background:var(--c-paper)}
.data-table tbody tr:hover{background:rgba(242,160,60,.12)}
.data-table tbody th[scope="row"]{
  position:sticky;left:0;z-index:1;
  background:#fff;
  border-right:1px solid var(--c-lime);
  font-weight:600;white-space:nowrap;
}
.data-table tbody tr:nth-child(even) th[scope="row"]{background:var(--c-paper)}
.data-table tbody tr:hover th[scope="row"]{
  background:rgba(242,160,60,.12);
  font-family:var(--font-mono);
  font-weight:700;
  color:var(--c-indigo);
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:11px;font-weight:500;letter-spacing:.08em;
  color:var(--c-indigo);
  background:transparent;
}
.tag--quarter{
  border-color:rgba(52,209,191,.55);
  background:rgba(52,209,191,.16);
  color:#0E1730;
  animation:tag-pulse 900ms ease-out 1;
}
.tag--alert{
  border-color:rgba(210,84,62,.5);
  background:rgba(210,84,62,.12);
  color:#8E2E1E;
}
@keyframes tag-pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(52,209,191,.55)}
  45%{box-shadow:0 0 0 7px rgba(52,209,191,0)}
}

/* ---------- 11. Media frame ---------- */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  background:var(--c-indigo-deep);
  border:1px solid var(--c-line);
}
.media-frame::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  background:linear-gradient(140deg,rgba(52,209,191,.12) 0%,rgba(52,209,191,0) 46%,rgba(242,160,60,.10) 100%);
}
.media-frame__img{
  width:100%;height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06);
  transition:transform 400ms var(--ease);
}
.media-frame:hover .media-frame__img{transform:scale(1.02)}
.media-frame__caption{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:11px;letter-spacing:.08em;
  color:var(--c-muted);
}
.media-frame--16x9{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}

/* ---------- 12. Reveal ---------- */
.reveal-ready [data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 420ms var(--ease),transform 420ms var(--ease);
}
.reveal-ready [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 13. Footer ---------- */
.site-footer{
  margin-top:clamp(48px,8vw,96px);
  background:var(--c-indigo);
  color:var(--c-silver);
  border-top:1px solid var(--c-line);
}
.site-footer a{color:inherit}

.footer-strip{
  overflow-x:auto;
  border-bottom:1px solid var(--c-line);
  scrollbar-width:thin;
}
.footer-strip__list{display:flex;min-width:max-content}
.footer-strip__cell{
  display:flex;align-items:baseline;gap:9px;
  padding:13px 24px 13px 0;
  margin-right:24px;
  border-right:1px solid var(--c-line);
  padding-right:24px;
}
.footer-strip__cell:last-child{border-right:0;margin-right:0}
.footer-strip__num{font-size:17px;font-weight:600;color:var(--c-amber);letter-spacing:.02em}
.footer-strip__label{font-size:12px;letter-spacing:.1em;color:var(--c-silver)}
.footer-strip__cell--accent .footer-strip__num{color:var(--c-cyan)}

.footer-main{
  display:grid;
  grid-template-columns:1.5fr .8fr .8fr 1.6fr;
  gap:clamp(24px,3vw,44px);
  padding:clamp(40px,6vw,72px) 0;
}
.footer-brand__kicker{
  font-size:11px;letter-spacing:.16em;
  color:var(--c-amber);
  margin-bottom:10px;
}
.footer-brand__title{font-size:22px;font-weight:800;color:var(--c-paper);letter-spacing:.02em}
.footer-lines{display:grid;gap:8px;margin-top:16px}
.footer-brand .footer-lines{margin-top:16px}
.footer-line{font-size:14px;line-height:1.75;color:var(--c-silver)}
.footer-col__title{
  margin-bottom:14px;
  font-size:11px;font-weight:600;letter-spacing:.18em;
  color:var(--c-amber);
}
.footer-col--wide .footer-line{font-size:13.5px}
.footer-links{display:grid;gap:9px}
.footer-link{
  position:relative;
  display:inline-block;
  font-size:14px;
  line-height:1.6;
  padding-bottom:2px;
  color:var(--c-silver);
  transition:color var(--t-base) var(--ease);
}
.footer-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:100%;height:1px;
  background:var(--c-amber);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--t-base) var(--ease);
}
.footer-link:hover{color:var(--c-amber)}
.footer-link:hover::after{transform:scaleX(1)}

.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px 28px;
  padding:22px 0 44px;
  border-top:1px solid var(--c-line);
  font-size:13px;
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:10px 26px}
.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  color:var(--c-silver);
}
.footer-icp{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;opacity:.82}
.footer-copyright{font-size:12.5px;letter-spacing:.02em;opacity:.82}

/* ---------- 14. Responsive ---------- */
@media (max-width:1199px){
  .header-index{display:none}
}

@media (max-width:1023px){
  .footer-main{grid-template-columns:1fr 1fr}
  .footer-col--wide{grid-column:1 / -1}
}

@media (max-width:899px){
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col--3,.col--4,.col--5,.col--6,.col--7,.col--8,.col--12{grid-column:1 / -1}

  .nav-island{
    width:calc(100% - 24px);
    margin-top:8px;
    padding:8px 10px;
    gap:10px;
    border-radius:18px;
  }
  .site-header[data-scrolled] .nav-island{padding:8px 10px}
  .brand__tagline{display:none}
  .header-cta{display:none}

  .nav-toggle{display:inline-flex;margin-left:auto}

  .nav-scroll{
    position:absolute;
    left:0;right:0;
    top:calc(100% + 10px);
    display:none;
    max-height:min(72vh,520px);
    overflow-x:hidden;
    overflow-y:auto;
    padding:10px;
    background:var(--c-indigo-deep);
    border:1px solid var(--c-line);
    border-radius:18px;
    box-shadow:0 28px 52px -30px rgba(6,10,22,.98);
  }
  .site-header[data-open] .nav-scroll{display:block}

  .nav-list{flex-direction:column;align-items:stretch;gap:2px;white-space:normal}
  .nav-link{
    justify-content:space-between;
    padding:12px 14px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{border-radius:12px}

  .nav-extra{
    display:block;
    margin-top:8px;
    padding-top:10px;
    border-top:1px solid var(--c-line);
  }
  .nav-extra .btn{width:100%}

  .footer-strip__cell{padding:12px 18px 12px 0;margin-right:18px;padding-right:18px}
}

@media (max-width:599px){
  .footer-main{grid-template-columns:1fr;gap:28px}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-brand__title{font-size:20px}
  .footer-strip__num{font-size:15px}
}

/* ---------- 15. Preferences ---------- */
@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;transform:none}
  .tag--quarter{animation:none}
}