:root{
  --ink:#05231C;
  --ink-deep:#03170F;
  --turf:#0B3B2E;
  --cyan:#16E0C8;
  --cyan-soft:#7CFFE9;
  --flare:#FF4D2E;
  --amber:#FFB020;
  --wine:#C8103A;
  --steel:#4A6785;
  --steel-light:#8FA6BC;
  --paper:#F2F5F3;
  --near-black:#101418;
  --max:1280px;
  --gutter:clamp(16px,4vw,44px);
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",Georgia,serif;
  --mono:"JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --bd:2px solid var(--near-black);
  --hard:6px 6px 0 var(--near-black);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,blockquote,dl,dd,pre{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;border-radius:0}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{font-weight:900;line-height:1.12;letter-spacing:-0.02em}
strong{font-weight:800}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}

/* ---------- 通用容器 ---------- */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.section{position:relative;padding:clamp(44px,6vw,92px) 0}
.section--ink{background:var(--ink)}
.section--turf{background:var(--turf)}
.section--steel{background:var(--steel);color:var(--paper)}
.section--paper{background:var(--paper);color:var(--near-black)}
.section--paper .eyebrow{color:var(--turf)}
.section--paper .eyebrow::before{background:var(--wine)}
.section--paper .stat__value{color:var(--wine)}
.section--paper .index-list__meta{color:var(--steel)}
.section--paper .index-list{border-top-color:var(--steel)}
.section--paper .index-list__item{border-bottom-color:rgba(74,103,133,.35)}
.section--paper .index-list__index{color:var(--steel)}
.section--paper .tag{color:var(--wine)}
.section--paper .prose a{color:var(--wine);border-bottom-color:var(--wine)}
.section--paper .prose strong{color:var(--turf)}
.section--paper .figure__caption{background:var(--paper);color:var(--steel)}

.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px 32px;margin-bottom:clamp(22px,3vw,36px)}
.section-title{font-size:clamp(26px,3vw,32px);font-family:var(--serif);letter-spacing:-0.01em}
.section--ink .section-title,.section--turf .section-title,.section--steel .section-title{font-family:var(--serif)}
.section-title--sans{font-family:var(--sans);font-weight:900}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan)}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--flare);flex:0 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border:var(--bd);border-radius:0;
  font-weight:800;font-size:15px;letter-spacing:.02em;line-height:1.2;
  background:var(--cyan);color:var(--near-black);
  box-shadow:var(--hard);
  transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,color .15s ease;
}
.btn:hover{transform:translate(3px,3px);box-shadow:3px 3px 0 var(--near-black)}
.btn:active{transform:translate(6px,6px);box-shadow:0 0 0 var(--near-black)}
.btn--primary{background:var(--cyan);color:var(--near-black)}
.btn--ghost{background:transparent;color:var(--paper);border-color:var(--cyan);box-shadow:6px 6px 0 var(--turf)}
.btn--ghost:hover{background:var(--cyan);color:var(--near-black);border-color:var(--near-black)}
.btn--flare{background:var(--flare);color:var(--paper)}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:absolute;left:14px;top:-120px;z-index:200;
  padding:10px 18px;background:var(--cyan);color:var(--near-black);
  border:var(--bd);font-weight:800;font-size:14px;
  transition:top .16s ease;
}
.skip-link:focus{top:10px}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:90;background:var(--ink)}

.status-bar{background:var(--near-black);border-bottom:2px solid var(--cyan);height:40px}
.status-bar__inner{
  max-width:var(--max);margin-inline:auto;padding:0 var(--gutter);height:100%;
  display:flex;align-items:center;gap:14px;
  font-family:var(--mono);font-size:12px;letter-spacing:.04em;
}
.status-bar__pulse{width:8px;height:8px;flex:0 0 auto;background:var(--flare);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.22}}
.status-bar__text{flex:1 1 auto;min-width:0;color:var(--cyan-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status-bar__meta{flex:0 0 auto;color:var(--amber);text-transform:uppercase}

.masthead{background:var(--ink);border-bottom:2px solid var(--turf)}
.masthead__grid{
  max-width:var(--max);margin-inline:auto;padding:20px var(--gutter) 14px;
  display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);
  align-items:center;gap:12px 20px;
}
.masthead__brand{
  grid-column:2;justify-self:center;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.masthead__mark{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  padding:3px 9px;background:var(--cyan);color:var(--near-black);border:var(--bd);
}
.masthead__wordmark{
  font-size:clamp(28px,5vw,60px);font-weight:900;line-height:1;letter-spacing:-0.035em;
  color:var(--paper);text-shadow:5px 5px 0 var(--turf);
  transition:color .18s ease,text-shadow .18s ease;
}
.masthead__brand:hover .masthead__wordmark{color:var(--cyan-soft);text-shadow:5px 5px 0 var(--wine)}
.masthead__tagline{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--steel-light);text-transform:uppercase}
.masthead__cta{grid-column:3;justify-self:end}
.masthead__ruler{
  height:8px;
  background:repeating-linear-gradient(90deg,var(--steel) 0 2px,transparent 2px 24px);
  opacity:.55;
}

.nav-toggle{
  grid-column:1;justify-self:start;
  display:none;align-items:center;gap:10px;
  padding:9px 12px;background:var(--turf);color:var(--paper);
  border:2px solid var(--cyan);font-weight:800;font-size:13px;letter-spacing:.08em;
}
.nav-toggle__bars{display:flex;flex-direction:column;gap:3px;width:18px}
.nav-toggle__bars span{display:block;height:2px;background:var(--cyan);transition:transform .2s ease,opacity .2s 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)}

.site-nav{background:var(--turf);border-bottom:2px solid var(--near-black)}
.site-nav__list{
  max-width:var(--max);margin-inline:auto;padding:0 var(--gutter);
  display:flex;flex-wrap:wrap;justify-content:center;
}
.site-nav__item + .site-nav__item{border-left:2px solid rgba(143,166,188,.28)}
.site-nav__link{
  display:block;padding:14px 22px;
  font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--paper);
  position:relative;transition:color .15s ease,background-color .15s ease;
}
.site-nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:var(--flare);
  transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.site-nav__link:hover{color:var(--cyan-soft);background:rgba(22,224,200,.08)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{background:var(--cyan);color:var(--near-black)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1);background:var(--near-black)}

/* ---------- 网格 ---------- */
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2vw,26px)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-12{grid-column:span 12}

/* ---------- 数据与标签 ---------- */
.stat{display:block}
.stat__value{
  display:block;font-family:var(--mono);font-weight:700;line-height:1;
  font-size:clamp(30px,4.4vw,54px);color:var(--cyan);letter-spacing:-0.03em;
}
.stat--flare .stat__value{color:var(--flare)}
.stat--amber .stat__value{color:var(--amber)}
.stat--paper .stat__value{color:var(--paper)}
.stat__label{
  display:block;margin-top:10px;font-family:var(--mono);font-size:12px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--steel-light);
}
.tag{
  display:inline-block;padding:4px 10px;border:2px solid currentColor;border-radius:0;
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);
}
.tag--flare{color:var(--flare)}
.tag--amber{color:var(--amber)}
.tag--fill{background:var(--wine);color:var(--paper);border-color:var(--near-black)}

/* ---------- 索引列表 ---------- */
.index-list{border-top:2px solid var(--steel-light)}
.index-list__item{
  display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 18px;
  padding:16px 0;border-bottom:2px solid rgba(143,166,188,.28);
}
.index-list__index{font-family:var(--mono);font-size:13px;color:var(--steel-light);min-width:46px}
.index-list__title{font-weight:800;font-size:19px;letter-spacing:-0.01em;color:inherit}
.index-list__meta{margin-left:auto;font-family:var(--mono);font-size:13px;color:var(--cyan)}

/* ---------- 表格 ---------- */
.data-table{width:100%;font-size:15px}
.data-table th{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  text-align:left;padding:12px 14px;background:var(--steel);color:var(--paper);border:2px solid var(--near-black);
}
.data-table td{
  padding:11px 14px;border-bottom:2px solid rgba(143,166,188,.3);
  font-family:var(--mono);font-size:15px;
}
.data-table tbody tr:hover{background:rgba(22,224,200,.1)}
.data-table tbody tr:hover td{color:var(--cyan-soft)}

/* ---------- 正文 ---------- */
.prose{max-width:74ch;font-size:17px;line-height:1.75}
.prose > * + *{margin-top:1.1em}
.prose h2{font-size:clamp(22px,2.4vw,28px);margin-top:1.7em;font-family:var(--serif);letter-spacing:-0.01em}
.prose h3{font-size:20px;margin-top:1.5em}
.prose ul{list-style:none}
.prose li{position:relative;padding-left:22px}
.prose li + li{margin-top:.4em}
.prose li::before{content:"";position:absolute;left:0;top:.78em;width:9px;height:2px;background:var(--flare)}
.prose a{color:var(--cyan);border-bottom:2px solid var(--cyan)}
.prose a:hover{color:var(--cyan-soft);border-bottom-color:var(--cyan-soft)}
.prose strong{color:var(--cyan-soft)}
.prose blockquote{
  border-left:6px solid var(--wine);padding:6px 0 6px 20px;
  font-family:var(--serif);font-size:19px;color:var(--paper);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0}
.breadcrumb__list{display:flex;flex-wrap:wrap;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-light)}
.breadcrumb__item{display:flex;align-items:center;gap:8px}
.breadcrumb__item:not(:last-child)::after{content:"/";color:var(--steel)}
.breadcrumb__link:hover{color:var(--cyan)}
.breadcrumb__current{color:var(--paper)}

/* ---------- 图片容器 ---------- */
.figure{margin:0;border:var(--bd);background:var(--turf)}
.figure__media{position:relative;overflow:hidden;background:var(--turf)}
.figure__media img,.figure__media picture,.figure__media svg,.figure__media video{
  display:block;width:100%;height:100%;object-fit:cover;
}
.figure--wide .figure__media{aspect-ratio:16/9}
.figure--tall .figure__media{aspect-ratio:4/5}
.figure--square .figure__media{aspect-ratio:1/1}
.figure__caption{
  padding:10px 14px;border-top:var(--bd);
  font-size:13px;line-height:1.6;color:var(--steel-light);background:var(--ink);
}

/* ---------- 标签页 ---------- */
.tabs{display:block}
.tabs__list{display:flex;flex-wrap:wrap;gap:0;border-bottom:3px solid var(--near-black)}
.tabs__tab{
  position:relative;padding:12px 20px;font-weight:800;font-size:15px;
  background:var(--turf);color:var(--paper);border:2px solid var(--near-black);border-bottom:0;
  transition:background-color .15s ease,color .15s ease;
}
.tabs__tab + .tabs__tab{margin-left:-2px}
.tabs__tab::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:var(--flare);
  transform:scaleX(0);transform-origin:left;transition:transform .15s ease;
}
.tabs__tab[aria-selected="true"]{background:var(--cyan);color:var(--near-black)}
.tabs__tab[aria-selected="true"]::after{transform:scaleX(1)}
.tabs__panel{padding:24px 0 0}
.tabs__panel[hidden]{display:none}

/* ---------- 战术板导航 ---------- */
.tactics-nav{
  position:fixed;left:18px;top:50%;transform:translateY(-50%);z-index:55;
  display:none;flex-direction:column;gap:2px;padding:10px;
  background:rgba(5,35,28,.92);border:2px solid var(--steel);
}
.tactics-nav__link{
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;
  padding:7px 12px;color:var(--steel-light);border-left:3px solid transparent;
  transition:color .15s ease,background-color .15s ease,border-color .15s ease;
}
.tactics-nav__link:hover{color:var(--cyan-soft)}
.tactics-nav__link.is-active{background:var(--cyan);color:var(--near-black);border-left-color:var(--flare)}

/* ---------- 滚动进度与显现 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:300;
  background:linear-gradient(90deg,var(--cyan),var(--amber),var(--flare));
  pointer-events:none;
}
[data-reveal]{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
[data-reveal].is-visible{opacity:1;transform:translateY(0)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--ink-deep);color:var(--paper);
  border-top:2px solid var(--near-black);font-size:15px;line-height:1.7;
}
.site-footer__edge{
  height:6px;
  background:linear-gradient(90deg,
    var(--cyan) 0 38%,
    var(--amber) 38% 60%,
    var(--wine) 60% 78%,
    var(--flare) 78% 100%);
}
.site-footer__inner{
  max-width:var(--max);margin-inline:auto;padding:clamp(38px,5vw,60px) var(--gutter) 32px;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:40px 48px;align-items:start;
}
.site-footer__brand{
  display:inline-block;padding-bottom:4px;border-bottom:4px solid var(--cyan);
  font-size:clamp(24px,3vw,34px);font-weight:900;letter-spacing:-0.03em;color:var(--paper);
}
.site-footer__brand:hover{color:var(--cyan-soft)}
.site-footer__summary{margin-top:18px;max-width:46ch;font-size:15px;color:var(--steel-light)}
.site-footer__cta{margin-top:22px}
.site-footer__nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}
.site-footer__col-title{
  font-family:var(--mono);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--cyan);padding-bottom:8px;margin-bottom:14px;
  border-bottom:2px solid rgba(143,166,188,.3);
}
.site-footer__list{display:block}
.site-footer__link{
  position:relative;display:inline-block;padding:5px 0 5px 15px;font-size:15px;color:var(--paper);
  transition:color .15s ease;
}
.site-footer__link::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:6px;background:var(--flare);
  transform:translateY(-50%) scale(.85);transition:transform .15s ease;
}
.site-footer__link:hover{color:var(--cyan-soft)}
.site-footer__link:hover::before{transform:translateY(-50%) scale(1.4)}

.site-footer__contact{
  grid-column:1/-1;margin-top:8px;padding-top:28px;
  border-top:2px solid rgba(143,166,188,.3);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px 32px;
}
.contact-item__label{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--amber);margin-bottom:6px;
}
.contact-item__value{
  font-family:var(--mono);font-size:15px;color:var(--paper);word-break:break-word;
}
.site-footer__note{grid-column:1/-1;margin-top:4px;font-size:13px;line-height:1.7;color:var(--steel-light)}

.site-footer__legal{
  max-width:var(--max);margin-inline:auto;padding:18px var(--gutter) 42px;
  border-top:2px solid rgba(143,166,188,.3);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 32px;
  font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:var(--steel-light);
}
.site-footer__icp{color:var(--cyan-soft)}
.site-footer__copy{color:var(--steel-light)}

/* ---------- 平板 ---------- */
@media (max-width:1100px){
  .span-3{grid-column:span 6}
  .span-4{grid-column:span 6}
  .span-5{grid-column:span 12}
  .span-7{grid-column:span 12}
  .span-8{grid-column:span 12}
  .site-footer__inner{grid-template-columns:1fr}
  .site-footer__contact{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* ---------- 移动端 ---------- */
@media (max-width:900px){
  body{font-size:16px}
  .status-bar__inner{gap:10px;font-size:11px}
  .status-bar__meta{display:none}
  .masthead__grid{padding:14px var(--gutter) 12px;grid-template-columns:auto minmax(0,1fr) auto;gap:10px}
  .masthead__wordmark{font-size:clamp(22px,6.6vw,32px);text-shadow:3px 3px 0 var(--turf)}
  .masthead__brand:hover .masthead__wordmark{text-shadow:3px 3px 0 var(--wine)}
  .masthead__tagline{font-size:10px;letter-spacing:.06em}
  .masthead__mark{font-size:11px;padding:2px 7px}
  .masthead__cta{padding:9px 13px;font-size:13px;box-shadow:4px 4px 0 var(--near-black)}
  .masthead__cta:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--near-black)}

  .nav-toggle{display:inline-flex}

  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;background:var(--ink);
    border-top:2px solid var(--near-black);border-bottom:3px solid var(--cyan);
    max-height:calc(100vh - 60px);overflow-y:auto;z-index:80;
    box-shadow:0 10px 0 rgba(16,20,24,.55);
  }
  .site-nav[data-open="true"]{display:block}
  .site-nav__list{flex-direction:column;flex-wrap:nowrap;padding:8px var(--gutter) 22px}
  .site-nav__item + .site-nav__item{border-left:0}
  .site-nav__link{padding:14px 2px;font-size:17px;border-bottom:2px solid rgba(143,166,188,.25)}
  .site-nav__link::after{display:none}
  .site-nav__link[aria-current="page"]{background:transparent;color:var(--cyan)}
  .site-nav__link[aria-current="page"]::before{
    content:"";display:inline-block;width:8px;height:8px;background:var(--flare);margin-right:10px;
  }

  .site-footer__nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .site-footer__contact{grid-template-columns:1fr;gap:18px}
  .site-footer__inner{gap:32px}
  .tactics-nav{display:none}
}

@media (max-width:520px){
  .masthead__tagline{display:none}
  .site-footer__nav{grid-template-columns:1fr}
  .site-footer__legal{justify-content: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;
  }
  .status-bar__pulse{opacity:1}
  [data-reveal]{opacity:1;transform:none}
  .btn:hover,.btn--ghost:hover{transform:none}
}