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

:root{
  --ink:#12141A;
  --ink-raised:#191C24;
  --ink-deep:#0C0E13;
  --copper:#6E1F1A;
  --clay:#A8422C;
  --red:#C41E28;
  --gold:#E3B23C;
  --gold-pale:#F6E3B4;
  --cyan:#35D0C0;
  --moss:#5E6B4A;
  --paper:#F2EAD9;
  --stone:#8A8F98;

  --line:rgba(138,143,152,.30);
  --line-soft:rgba(138,143,152,.15);
  --grid:rgba(138,143,152,.09);

  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --shell:1360px;
  --gutter:clamp(16px,3.2vw,44px);
  --radius:3px;
  --lift:0 20px 44px -26px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.61,.36,1);
}

body{
  background-color:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:clamp(15px,1.02vw,16.5px);
  line-height:1.75;
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(to right,var(--grid) 1px,transparent 1px),
    linear-gradient(to bottom,var(--grid) 1px,transparent 1px);
  background-size:88px 88px;
  pointer-events:none;
  z-index:0;
}
.site-header,.site-footer{position:relative;z-index:2}

h1,h2,h3,h4{line-height:1.14;font-weight:900;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,5.4vw,4.2rem)}
h2{font-size:clamp(1.5rem,3vw,2.3rem)}
h3{font-size:clamp(1.1rem,1.9vw,1.4rem)}
p{max-width:42em}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:2px}
::selection{background:var(--red);color:#FFF6E6}

/* ---------- 布局 ---------- */
.container{width:min(100% - var(--gutter) * 2,var(--shell));margin-inline:auto}
.section{padding-block:clamp(38px,6vw,86px)}
.section--tight{padding-block:clamp(24px,3.4vw,48px)}
.grid{display:grid;gap:clamp(16px,2.2vw,28px)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cluster{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center}

/* ---------- 文本 ---------- */
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.text-stone{color:var(--stone)}
.lede{font-size:clamp(1rem,1.4vw,1.12rem);color:#DCD5C6;max-width:40em}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.26em;
  color:var(--cyan);text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--cyan)}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px 24px;border-bottom:1px solid var(--line);
  padding-bottom:14px;margin-bottom:clamp(20px,3vw,34px);
}
.section-title{max-width:24em}
.title-gold{
  background:linear-gradient(180deg,var(--gold-pale) 0%,var(--gold) 48%,#B27C1C 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.index-num{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.18em;color:var(--stone)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:.72em 1.35em;border:1px solid transparent;border-radius:var(--radius);
  font-size:.94rem;font-weight:700;letter-spacing:.02em;line-height:1.2;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-primary{
  background:linear-gradient(180deg,#E03A2F,var(--red) 55%,#8C1520);
  color:#FFF4E3;border-color:rgba(246,227,180,.36);
  box-shadow:0 12px 28px -16px rgba(196,30,40,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(196,30,40,1)}
.btn-ghost{
  background:rgba(246,227,180,.05);color:var(--gold-pale);
  border-color:rgba(227,178,60,.5);
}
.btn-ghost:hover{background:rgba(227,178,60,.14);border-color:var(--gold);transform:translateY(-2px)}
.btn-quiet{background:transparent;border-color:var(--line);color:var(--stone)}
.btn-quiet:hover{color:var(--paper);border-color:var(--line)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:.45em;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;
  padding:.3em .7em;border:1px solid var(--line);border-radius:2px;
  color:var(--stone);background:rgba(138,143,152,.06);
}
.tag--gold{color:var(--gold-pale);border-color:rgba(227,178,60,.55);background:rgba(227,178,60,.10)}
.tag--cyan{color:var(--cyan);border-color:rgba(53,208,192,.5);background:rgba(53,208,192,.08)}
.tag--moss{color:#C6CFB2;border-color:rgba(94,107,74,.9);background:rgba(94,107,74,.28)}

/* ---------- 状态灯 ---------- */
.status-dot{
  width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none;
  box-shadow:0 0 0 3px rgba(53,208,192,.16),0 0 12px rgba(53,208,192,.75);
  animation:pulse 1.8s ease-in-out infinite;
}
.status-dot--red{background:var(--red);box-shadow:0 0 0 3px rgba(196,30,40,.18),0 0 12px rgba(196,30,40,.8)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}

/* ---------- 面板 / 纸层 ---------- */
.panel{
  position:relative;padding:clamp(18px,2.4vw,30px);
  background:linear-gradient(180deg,rgba(25,28,36,.97),rgba(16,18,24,.97));
  border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.panel::before,.panel::after{
  content:"";position:absolute;width:14px;height:14px;pointer-events:none;
  border-color:rgba(227,178,60,.6);
}
.panel::before{top:-1px;left:-1px;border-top:1px solid;border-left:1px solid}
.panel::after{bottom:-1px;right:-1px;border-bottom:1px solid;border-right:1px solid}
.panel:hover{transform:translateY(-3px);border-color:rgba(227,178,60,.55);box-shadow:var(--lift)}
.paper{
  background:var(--paper);color:#1B1A16;border:1px solid rgba(0,0,0,.14);
  border-radius:var(--radius);padding:clamp(18px,2.6vw,34px);
  box-shadow:0 22px 44px -30px rgba(0,0,0,.95);
}
.paper h2,.paper h3{color:#131211}
.paper a{color:#8C1A16;border-bottom:1px dotted rgba(140,26,22,.55)}
.paper a:hover{border-bottom-style:solid}
.callout{
  border-left:3px solid var(--gold);background:rgba(227,178,60,.08);
  padding:14px 18px;border-radius:0 var(--radius) var(--radius) 0;
}

/* ---------- 数据看板 ---------- */
.stat-row{display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,42px)}
.stat{min-width:120px}
.stat-value{
  display:block;font-family:var(--font-mono);font-weight:700;
  font-size:clamp(1.7rem,3.4vw,2.6rem);line-height:1;color:var(--gold-pale);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  display:block;margin-top:8px;font-family:var(--font-mono);
  font-size:.72rem;letter-spacing:.16em;color:var(--stone);
}

/* ---------- 媒体容器 ---------- */
.media-frame{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(140deg,#1B1F27,#0E1015);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:6px;border:1px solid rgba(246,227,180,.16);
  pointer-events:none;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-caption{
  margin-top:10px;font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.12em;color:var(--stone);
}

/* ---------- 分段切换 ---------- */
.tabs{margin-top:clamp(16px,2.4vw,28px)}
.tab-list{display:flex;flex-wrap:wrap;gap:6px;border-bottom:1px solid var(--line)}
.tab{
  position:relative;top:1px;padding:.6em 1.05em;
  font-family:var(--font-mono);font-size:.78rem;letter-spacing:.14em;
  color:var(--stone);border:1px solid var(--line);border-bottom:0;
  background:rgba(138,143,152,.06);border-radius:var(--radius) var(--radius) 0 0;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.tab:hover{color:var(--paper)}
.tab[aria-selected="true"]{
  background:var(--paper);color:#1B1A16;border-color:var(--gold);
  font-weight:700;
}
.tab-panel{padding-top:clamp(16px,2.4vw,26px)}
.tab-panel[hidden]{display:none}

/* ---------- 左侧索引 ---------- */
.index-rail{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line-soft);padding-left:12px}
.index-link{
  display:block;width:100%;text-align:left;padding:.42em 0;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.1em;
  color:var(--stone);border-left:2px solid transparent;padding-left:10px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.index-link:hover{color:var(--paper)}
.index-link.is-active{color:var(--gold-pale);border-left-color:var(--gold)}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:.5em;font-family:var(--font-mono);
  font-size:.76rem;letter-spacing:.08em;color:var(--stone);
}
.breadcrumb li+li::before{content:"/";margin-right:.5em;color:var(--line)}
.breadcrumb a:hover{color:var(--gold-pale)}

/* ---------- 滚动显现 ---------- */
[data-reveal]{opacity:0;transform:translateX(-14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 头部 ---------- */
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:90;
  padding:.6em 1em;background:var(--paper);color:#1B1A16;font-weight:700;
  border-radius:0 0 var(--radius) var(--radius);transition:top .2s var(--ease);
}
.skip-link:focus{top:0}
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(18,20,26,.98),rgba(18,20,26,.9));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-frame{
  width:min(100%,var(--shell));margin-inline:auto;
  padding:12px var(--gutter);
  display:grid;grid-template-columns:auto minmax(30px,1fr) auto auto;
  align-items:center;gap:clamp(12px,2.2vw,32px);
}
.brand-cluster{display:flex;flex-direction:column;gap:4px;min-width:0}
.brand-link{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  flex:none;width:42px;height:42px;display:grid;place-items:center;
  font-size:1.15rem;font-weight:900;color:#FFF1DC;
  background:linear-gradient(160deg,#E03A2F,var(--red) 55%,#7E1420);
  border:1px solid rgba(227,178,60,.7);border-radius:2px;
  box-shadow:0 0 22px -6px rgba(196,30,40,.8),inset 0 0 0 2px rgba(246,227,180,.14);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:1.02rem;font-weight:900;letter-spacing:.02em;color:var(--paper);white-space:nowrap}
.brand-line{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.28em;
  color:var(--gold);
}
.brand-tagline{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;
  color:var(--stone);max-width:none;padding-left:54px;
}
.header-rail{display:flex;align-items:center;gap:12px;min-width:0}
.rail-line{flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--line) 20%,var(--line) 80%,transparent)}
.rail-status{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.12em;color:var(--stone);
}
.nav-shell{display:flex;align-items:center;gap:clamp(14px,2vw,26px)}
.nav-list{display:flex;align-items:center;gap:clamp(4px,1vw,10px);flex-wrap:wrap}
.nav-link{
  position:relative;display:inline-block;padding:.5em .72em;font-size:.92rem;
  color:#D8D2C5;transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:.72em;right:.72em;bottom:.28em;height:2px;
  background:linear-gradient(90deg,var(--red),var(--gold));
  transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--gold-pale)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold-pale);font-weight:700}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-extras{display:flex;align-items:center;gap:8px;padding-left:clamp(10px,1.4vw,18px);border-left:1px solid var(--line)}
.quick-link{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  padding:.5em .8em;color:var(--cyan);border:1px solid rgba(53,208,192,.42);
  border-radius:2px;white-space:nowrap;transition:background-color .2s var(--ease),color .2s var(--ease);
}
.quick-link:hover{background:rgba(53,208,192,.14);color:#CFFBF5}
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:.5em .8em;border:1px solid var(--line);border-radius:2px;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.14em;color:var(--gold-pale);
}
.nav-toggle-bars{display:flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle-bars span{display:block;height:2px;background:var(--gold);transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--red),var(--gold) 55%,var(--cyan));
  transition:width .12s linear;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(40px,6vw,90px);
  background:
    linear-gradient(180deg,rgba(110,31,26,.55),rgba(12,14,19,.98) 40%),
    var(--ink-deep);
  border-top:1px solid rgba(227,178,60,.32);
}
.footer-frame{width:min(100% - var(--gutter) * 2,var(--shell));margin-inline:auto;padding:clamp(32px,5vw,68px) 0 clamp(22px,3vw,36px)}
.footer-top{
  display:grid;grid-template-columns:minmax(240px,1fr) minmax(0,2fr);
  gap:clamp(24px,4vw,60px);padding-bottom:clamp(24px,3.4vw,44px);
  border-bottom:1px solid var(--line-soft);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.footer-mark{
  font-family:var(--font-mono);font-size:1.6rem;font-weight:700;letter-spacing:.1em;
  color:var(--gold);text-shadow:0 0 20px rgba(227,178,60,.35);
}
.footer-brand-name{font-weight:900;font-size:1.06rem;color:var(--paper);max-width:none}
.footer-brand-note{font-size:.88rem;color:var(--stone);max-width:30em}
.footer-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr)) minmax(0,1.4fr);gap:clamp(20px,3vw,40px)}
.footer-col-title{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.24em;
  color:var(--cyan);font-weight:400;margin-bottom:14px;
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{font-size:.92rem;color:#D3CCBE;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-links a:hover{color:var(--gold-pale);padding-left:5px}
.contact-list{display:flex;flex-direction:column;gap:10px}
.contact-item{display:flex;flex-direction:column;gap:2px}
.contact-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;color:var(--stone)}
.contact-value{font-size:.9rem;color:#D3CCBE;word-break:break-word}
.contact-note{margin-top:14px;font-size:.8rem;color:var(--stone);max-width:30em}
.footer-meta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px 24px;padding-top:clamp(18px,2.4vw,28px);
}
.footer-closing{font-size:.86rem;color:var(--stone);max-width:44em}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.08em;color:var(--stone);
}
.legal-icp{color:var(--gold-pale)}
.legal-dot{color:var(--line)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-extras{display:none}
}
@media (max-width:960px){
  .header-frame{grid-template-columns:minmax(0,1fr) auto;row-gap:0}
  .header-rail{display:none}
  .brand-tagline{display:none}
  .nav-toggle{display:inline-flex}
  .nav-shell{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:14px var(--gutter) 22px;
    background:linear-gradient(180deg,rgba(12,14,19,.99),rgba(18,20,26,.99));
    border-bottom:1px solid rgba(227,178,60,.4);
    box-shadow:0 26px 50px -30px rgba(0,0,0,1);
  }
  .nav-shell[data-open]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:.72em .4em;border-bottom:1px solid var(--line-soft);font-size:1rem}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--gold-pale);border-left:2px solid var(--gold);padding-left:12px}
  .nav-extras{display:flex;padding:16px 0 0;border-left:0;border-top:1px solid var(--line-soft)}
  .footer-top{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:720px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .panel:hover{transform:none}
  .footer-meta{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .footer-cols{grid-template-columns:1fr}
  .brand-mark{width:36px;height:36px;font-size:1rem}
  .brand-name{font-size:.94rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
}