*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,ul,ol,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit;color:inherit}
img,svg,picture{display:block;max-width:100%}
[hidden]{display:none !important}

:root{
  --ink:#061713;
  --ink-deep:#04120F;
  --surface:#0B2A22;
  --surface-2:#0E332A;
  --grid:#124238;
  --cyan:#3BF2CE;
  --cyan-soft:#8FF8E4;
  --amber:#FFB020;
  --violet:#7C6CFF;
  --mist:#EAF7F2;
  --sage:#9DB8AF;
  --divider:#1E4A3F;
  --font-display:"Barlow Condensed","Saira Condensed","Arial Narrow","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --shell:1240px;
  --gutter:clamp(18px,4.2vw,52px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  background-color:var(--ink);
  background-image:
    linear-gradient(to right,rgba(18,66,56,.42) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(18,66,56,.26) 1px,transparent 1px);
  background-size:88px 88px;
  color:var(--mist);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:800;line-height:1.1;letter-spacing:-.01em;color:var(--mist)}
p{max-width:70ch}
:focus-visible{outline:2px solid var(--cyan-soft);outline-offset:3px;border-radius:1px}

/* ---------- 通用工具 ---------- */
.container{width:100%;max-width:var(--shell);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.stack>*+*{margin-top:1.1em}
.eyebrow{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.22em;color:var(--cyan);text-transform:uppercase}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 22px;border:1px solid var(--cyan);background:var(--cyan);color:var(--ink-deep);font-weight:700;font-size:14px;letter-spacing:.06em;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
.btn:hover{background:var(--cyan-soft);border-color:var(--cyan-soft);transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--cyan)}
.btn--ghost:hover{background:rgba(59,242,206,.12);color:var(--cyan-soft)}
.panel{background:var(--surface);border:1px solid var(--grid);padding:clamp(18px,2.4vw,28px)}
.media-frame{position:relative;overflow:hidden;background:var(--surface-2);border:1px solid var(--grid);aspect-ratio:16/9}
.media-frame>img,.media-frame>picture>img{width:100%;height:100%;object-fit:cover}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--wide{aspect-ratio:21/9}
.media-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,23,19,0) 45%,rgba(6,23,19,.72) 100%);pointer-events:none}

/* ---------- 跳转链接 ---------- */
.skip-link{position:fixed;top:10px;left:10px;z-index:300;transform:translateY(-180%);background:var(--cyan);color:var(--ink-deep);font-weight:700;font-size:14px;letter-spacing:.06em;padding:11px 20px;border-radius:2px;transition:transform .18s var(--ease)}
.skip-link:focus{transform:translateY(0)}

/* ---------- 页头 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:rgba(6,23,19,.94);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--divider);box-shadow:0 20px 44px -34px rgba(0,0,0,.95)}
.console-bar{position:relative;background:linear-gradient(180deg,rgba(11,42,34,.55),rgba(6,23,19,0))}
.console-bar__inner{width:100%;max-width:var(--shell);margin:0 auto;padding:10px var(--gutter);display:flex;align-items:center;gap:clamp(10px,1.8vw,26px);min-height:64px}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--mist)}
.brand__mark{position:relative;display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(59,242,206,.5);background:rgba(59,242,206,.08);color:var(--cyan);font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.04em}
.brand__mark::after{content:"";position:absolute;right:-1px;bottom:-1px;width:6px;height:6px;background:var(--amber)}
.brand__text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand__name{font-size:15px;font-weight:800;letter-spacing:.14em;color:var(--mist)}
.brand__line{margin-top:5px;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--sage)}
.console-bar__meta{display:flex;align-items:center;gap:9px;margin-left:auto;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;color:var(--sage);white-space:nowrap}
.console-bar__meta-key{color:rgba(157,184,175,.72)}
.console-bar__meta-val{color:var(--cyan-soft);padding-bottom:2px;border-bottom:1px solid rgba(143,248,228,.35)}
.status-dot{width:6px;height:6px;flex:0 0 auto;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(59,242,206,.14);animation:pulse 2.6s ease-in-out infinite}
.status-dot--amber{background:var(--amber);box-shadow:0 0 0 3px rgba(255,176,32,.14);animation:none}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.console-bar__actions{display:flex;align-items:center;gap:6px;margin-left:0}
.search-trigger{display:inline-flex;align-items:center;gap:9px;padding:8px 14px;border:1px solid rgba(59,242,206,.45);color:var(--cyan);font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}
.search-trigger:hover,.search-trigger[aria-expanded="true"]{background:var(--cyan);color:var(--ink-deep);border-color:var(--cyan)}
.search-trigger__glyph{position:relative;width:10px;height:10px;flex:0 0 auto;border:1.5px solid currentColor;border-radius:50%}
.search-trigger__glyph::after{content:"";position:absolute;right:-4px;bottom:-3px;width:6px;height:1.5px;background:currentColor;transform:rotate(45deg)}
.console-bar__link{position:relative;padding:6px 10px;font-size:13px;font-weight:500;color:var(--sage);transition:color .16s var(--ease)}
.console-bar__link::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.console-bar__link:hover{color:var(--mist)}
.console-bar__link:hover::after{transform:scaleX(1)}
.nav-toggle{display:none;align-items:center;gap:9px;margin-left:6px;padding:9px 12px;border:1px solid var(--divider);color:var(--mist);font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;transition:border-color .16s var(--ease),color .16s var(--ease)}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{display:flex;flex-direction:column;justify-content:space-between;width:16px;height:11px}
.nav-toggle__bars span{display:block;height:1.5px;background:currentColor;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.site-header[data-open] .nav-toggle__bars span:nth-child(1){transform:translateY(4.75px) 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(-4.75px) rotate(-45deg)}
.nav-deck{display:block;border-top:1px solid rgba(30,74,63,.9);background:linear-gradient(90deg,rgba(11,42,34,.88),rgba(6,23,19,.62))}
.nav-deck__inner{max-width:var(--shell);margin:0 auto;padding:0 var(--gutter);display:flex;align-items:stretch}
.site-nav{display:flex;flex:1;min-width:0}
.site-nav__list{display:flex;align-items:stretch;counter-reset:navitem}
.site-nav__item{display:flex}
.site-nav__link{position:relative;display:inline-flex;align-items:center;gap:9px;padding:13px 20px;color:var(--sage);font-size:14px;font-weight:600;letter-spacing:.06em;transition:color .16s var(--ease),background .16s var(--ease)}
.site-nav__link::before{counter-increment:navitem;content:counter(navitem,decimal-leading-zero);font-family:var(--font-mono);font-size:10px;font-weight:500;letter-spacing:.04em;color:rgba(157,184,175,.5);transition:color .16s var(--ease)}
.site-nav__link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.site-nav__link:hover{color:var(--mist);background:rgba(59,242,206,.06)}
.site-nav__link:hover::before{color:var(--cyan-soft)}
.site-nav__link[aria-current="page"]{color:var(--mist);background:rgba(59,242,206,.07)}
.site-nav__link[aria-current="page"]::before{color:var(--amber)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}

/* ---------- 检索层 ---------- */
.search-deck{position:absolute;top:100%;left:0;right:0;z-index:6;background:var(--surface);border-bottom:1px solid var(--grid);box-shadow:0 34px 60px -32px rgba(0,0,0,.95)}
.search-deck__inner{max-width:var(--shell);margin:0 auto;padding:22px var(--gutter) 26px;display:grid;gap:10px}
.search-deck__label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.2em;color:var(--cyan-soft)}
.search-deck__input{width:100%;padding:12px 14px;background:rgba(6,23,19,.92);border:1px solid var(--grid);color:var(--mist);font-family:var(--font-mono);font-size:13px;letter-spacing:.04em;transition:border-color .16s var(--ease),box-shadow .16s var(--ease)}
.search-deck__input::placeholder{color:rgba(157,184,175,.65)}
.search-deck__input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 1px rgba(59,242,206,.4)}
.search-deck__hint{font-size:12px;color:var(--sage);letter-spacing:.02em}
.search-deck__results{display:grid;gap:14px;max-height:min(52vh,420px);overflow:auto;padding-right:6px}
.search-deck__group{display:grid;gap:6px}
.search-deck__group-title{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--amber);padding-bottom:6px;border-bottom:1px solid var(--divider);max-width:none}
.search-deck__group-list{display:grid;gap:2px}
.search-deck__link{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 10px;border:1px solid transparent;color:var(--mist);font-size:14px;transition:background .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease)}
.search-deck__link:hover,.search-deck__link:focus-visible{background:rgba(59,242,206,.08);border-color:rgba(59,242,206,.35);color:var(--cyan-soft)}
.search-deck__link-name{min-width:0}
.search-deck__link-cat{flex:0 0 auto;font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:var(--sage)}
.search-deck__empty{font-size:13px;color:var(--amber)}

/* ---------- 阅读进度 ---------- */
.readout{height:2px;background:rgba(30,74,63,.7);overflow:hidden}
.readout__fill{display:block;width:100%;height:100%;background:linear-gradient(90deg,var(--cyan),var(--cyan-soft) 55%,var(--amber));transform:scaleX(0);transform-origin:0 50%;will-change:transform}

/* ---------- 移动底栏 ---------- */
.mobile-dock{display:none;position:fixed;left:0;right:0;bottom:0;z-index:130;grid-template-columns:repeat(3,1fr);background:rgba(6,23,19,.97);border-top:1px solid var(--divider);padding-bottom:env(safe-area-inset-bottom,0)}
.mobile-dock__item{display:flex;align-items:center;justify-content:center;min-height:52px;font-size:13.5px;font-weight:600;letter-spacing:.06em;color:var(--mist);border-right:1px solid rgba(30,74,63,.7);transition:color .16s var(--ease),background .16s var(--ease)}
.mobile-dock__item:last-child{border-right:0}
.mobile-dock__item:hover,.mobile-dock__item:focus-visible{color:var(--cyan);background:rgba(59,242,206,.08)}
.mobile-dock__item--btn{font-family:var(--font-body)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:linear-gradient(180deg,var(--ink-deep) 0%,#061713 55%,#082019 100%);border-top:1px solid var(--grid);color:var(--sage)}
.footer-rail{height:3px;background:repeating-linear-gradient(115deg,rgba(59,242,206,.75) 0 10px,rgba(59,242,206,0) 10px 26px)}
.footer-inner{max-width:var(--shell);margin:0 auto;padding:0 var(--gutter)}
.footer-hero{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px;padding:clamp(32px,5vw,60px) 0 clamp(24px,3vw,36px);border-bottom:1px solid var(--divider)}
.footer-hero__main{max-width:46ch}
.footer-brand{font-family:var(--font-display);font-weight:800;font-size:clamp(24px,3.6vw,38px);line-height:1.1;letter-spacing:.02em;color:var(--mist);max-width:none}
.footer-tagline{margin-top:14px;font-family:var(--font-serif);font-size:15px;line-height:1.9;color:var(--sage)}
.footer-badge{display:inline-flex;align-items:center;gap:9px;padding:9px 14px;border:1px solid rgba(255,176,32,.4);background:rgba(255,176,32,.07);color:var(--amber);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;white-space:nowrap;max-width:none}
.footer-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:clamp(18px,2.4vw,34px);padding:clamp(28px,4vw,46px) 0;border-bottom:1px solid var(--divider)}
.footer-col{display:flex;flex-direction:column;gap:12px;min-width:0}
.footer-col__title{font-family:var(--font-mono);font-size:10px;font-weight:500;line-height:1.7;letter-spacing:.16em;color:var(--cyan-soft);padding-bottom:10px;border-bottom:1px solid var(--grid)}
.footer-col__list{display:flex;flex-direction:column;gap:8px}
.footer-col__list a{display:inline-block;font-size:14px;color:var(--sage);transition:color .16s var(--ease),transform .16s var(--ease)}
.footer-col__list a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-contact{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--divider);border:1px solid var(--divider);margin:clamp(28px,4vw,44px) 0}
.footer-contact__block{display:flex;flex-direction:column;gap:8px;background:var(--surface);padding:20px 22px;min-width:0}
.footer-contact__block--wide{grid-column:span 1}
.footer-contact__key{font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:rgba(157,184,175,.8)}
.footer-contact__value{font-family:var(--font-mono);font-size:13px;color:var(--mist);word-break:break-all;max-width:none}
.footer-contact__note{font-size:12.5px;line-height:1.7;color:var(--sage)}
.copy-btn{display:inline-flex;align-items:center;justify-content:space-between;gap:14px;max-width:100%;padding:9px 12px;border:1px solid var(--grid);background:rgba(6,23,19,.7);color:var(--mist);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.03em;text-align:left;transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease)}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan-soft);background:rgba(59,242,206,.08)}
.copy-btn__value{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.copy-btn__state{flex:0 0 auto;padding-left:10px;border-left:1px solid var(--grid);font-size:10px;letter-spacing:.16em;color:var(--cyan)}
.copy-btn[data-copied] .copy-btn__state{color:var(--amber)}
.footer-base{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:22px 0 clamp(26px,4vw,38px)}
.footer-base__legal{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:rgba(157,184,175,.85);max-width:none}
.footer-base__legal a{color:var(--sage);border-bottom:1px solid transparent;transition:color .16s var(--ease),border-color .16s var(--ease)}
.footer-base__legal a:hover{color:var(--cyan);border-color:rgba(59,242,206,.5)}
.footer-base__sep{color:rgba(157,184,175,.35)}
.to-top{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--divider);color:var(--sage);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease)}
.to-top::before{content:"";width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:5px solid currentColor}
.to-top:hover{border-color:var(--cyan);color:var(--cyan);background:rgba(59,242,206,.08)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  html{scroll-padding-top:80px}
  .nav-toggle{display:inline-flex}
  .console-bar__meta{display:none}
  .console-bar__actions{margin-left:auto}
  .console-bar__actions .console-bar__link{display:none}
  .nav-deck{display:none;border-top:1px solid var(--divider);background:rgba(11,42,34,.98)}
  .site-header[data-open] .nav-deck{display:block}
  .nav-deck__inner{display:block;padding:6px var(--gutter) 16px}
  .site-nav{display:block}
  .site-nav__list{flex-direction:column;counter-reset:navitem}
  .site-nav__item{border-bottom:1px solid rgba(30,74,63,.65)}
  .site-nav__item:last-child{border-bottom:0}
  .site-nav__link{width:100%;padding:14px 6px;font-size:15px}
  .site-nav__link::after{left:0;right:auto;top:0;bottom:0;width:3px;height:auto;transform:scaleY(0);transform-origin:top}
  .site-nav__link[aria-current="page"]::after{transform:scaleY(1)}
  .mobile-dock{display:grid}
  body{padding-bottom:60px}
  .search-deck__results{max-height:46vh}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 22px}
  .footer-contact{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact__block--wide{grid-column:span 2}
}
@media (max-width:760px){
  body{font-size:16px;line-height:1.75}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-contact{grid-template-columns:1fr}
  .footer-contact__block--wide{grid-column:span 1}
  .footer-hero{align-items:flex-start;flex-direction:column}
  .footer-badge{white-space:normal}
}
@media (max-width:640px){
  .brand__mark{width:32px;height:32px;font-size:10px}
  .brand__name{font-size:14px;letter-spacing:.1em}
  .brand__line{display:none}
  .search-trigger{padding:9px}
  .search-trigger__text{display:none}
  .nav-toggle{padding:9px 10px}
  .nav-toggle__text{display:none}
  .console-bar__inner{min-height:58px;gap:8px}
  .search-deck__inner{padding:16px var(--gutter) 20px}
  .footer-base{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .readout__fill{transition:none}
}