*,*::before,*::after{box-sizing:border-box}

:root{
  --space:#080D1A;
  --hull:#111A2E;
  --glass:#1C2942;
  --neon:#35F2A4;
  --orange:#FF7A2F;
  --paper:#F1EDE2;
  --ink:#0C1424;
  --body:#D7E2F2;
  --steel:#8798B4;
  --line:#26344D;
  --cyan:#4FD8FF;
  --on-neon:#04120C;
  --on-orange:#1A0A02;

  --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;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --wrap:1320px;
  --gut:clamp(16px,3vw,28px);
  --radius:4px;
  --cmd-h:56px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
}

html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}

body{
  margin:0;
  background-color:var(--space);
  color:var(--body);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4{margin:0 0 .6em;color:#FFFFFF;font-weight:800;line-height:1.18;letter-spacing:-.02em}
h1{font-size:clamp(30px,4.4vw,54px)}
h2{font-size:clamp(24px,3vw,40px)}
h3{font-size:clamp(18px,2vw,24px)}
h4{font-size:17px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1em;padding-left:1.25em}
li{margin:.25em 0}
img{display:block;max-width:100%;height:auto}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
strong,b{color:#FFFFFF;font-weight:700}
small{font-size:12px}
hr{border:0;border-top:1px solid var(--line);margin:32px 0}
button{font:inherit;color:inherit}
[hidden]{display:none !important}
::selection{background:var(--neon);color:var(--on-neon)}

:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:2px}
.skip-link{
  position:absolute;left:12px;top:-72px;z-index:400;
  padding:10px 18px;border-radius:var(--radius);
  background:var(--neon);color:var(--on-neon);font-size:14px;font-weight:700;
  transition:top .16s ease;
}
.skip-link:focus{top:12px;text-decoration:none}

/* ---------- 顶部命令栏 ---------- */
.cmd-bar{
  position:sticky;top:0;z-index:120;
  background:rgba(28,41,66,.82);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.cmd-bar__inner{
  display:flex;align-items:center;gap:18px;
  width:100%;max-width:var(--wrap);margin:0 auto;
  min-height:var(--cmd-h);padding:0 var(--gut);
}
.cmd-bar__meter{position:absolute;left:0;right:0;bottom:-1px;height:2px;overflow:hidden;pointer-events:none}
.cmd-bar__meter span{
  display:block;height:100%;width:100%;
  background:linear-gradient(90deg,var(--neon),var(--cyan));
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .12s linear;
}
.cmd-bar__tools{display:flex;align-items:center;gap:8px;margin-left:auto;flex:0 0 auto}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;color:#FFFFFF}
.brand:hover{text-decoration:none}
.brand__mark{
  display:inline-flex;align-items:center;justify-content:center;
  padding:2px 7px;border-radius:3px;
  background:var(--neon);color:var(--on-neon);
  font-family:var(--mono);font-size:17px;font-weight:800;line-height:1.35;letter-spacing:-.04em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__name{font-size:16px;font-weight:700;letter-spacing:-.01em;color:#FFFFFF}
.brand__status{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--steel);white-space:nowrap}
.brand--foot .brand__name{font-size:18px}
.brand--foot .brand__status{color:var(--neon)}

.pulse{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--orange);flex:0 0 auto;
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}

.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(8,13,26,.6);cursor:pointer;
  font-size:13px;font-weight:600;color:var(--body);
}
.nav-toggle[aria-expanded="true"]{border-color:var(--neon);color:var(--neon)}
.nav-toggle__lines{display:inline-flex;flex-direction:column;gap:3px}
.nav-toggle__lines i{display:block;width:16px;height:2px;background:currentColor}
.nav-toggle__label{line-height:1}

.site-nav{flex:1 1 auto;min-width:0;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;-ms-overflow-style:none}
.site-nav::-webkit-scrollbar{display:none}
.site-nav__list{display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
.site-nav__item{margin:0}
.site-nav__link{
  position:relative;display:block;
  padding:9px 12px;border-radius:var(--radius);
  font-size:14px;font-weight:500;color:var(--steel);white-space:nowrap;
  transition:color .15s ease,background-color .15s ease;
}
.site-nav__link:hover{color:var(--body);background:rgba(53,242,164,.08);text-decoration:none}
.site-nav__link[aria-current="page"]{color:var(--neon);font-weight:700}
.site-nav__link[aria-current="page"]::before{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--neon);
}
.site-nav__link[aria-current="page"]:hover{background:rgba(53,242,164,.1)}

.hint-bar{border-top:1px solid var(--line);background:rgba(8,13,26,.78)}
.hint-bar p{
  max-width:var(--wrap);margin:0 auto;padding:12px var(--gut);
  font-size:13px;line-height:1.7;color:var(--steel);
}
.hint-bar a{color:var(--cyan);border-bottom:1px solid rgba(79,216,255,.35)}
.hint-bar a:hover{text-decoration:none;border-bottom-color:var(--cyan)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 14px;border:1px solid transparent;border-radius:var(--radius);
  background:transparent;color:var(--body);
  font-size:13px;font-weight:600;line-height:1.25;letter-spacing:.02em;
  white-space:nowrap;text-decoration:none;cursor:pointer;
  transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--solid{background:var(--neon);border-color:var(--neon);color:var(--on-neon);font-weight:800}
.btn--solid:hover{background:#5EF6B6;border-color:#5EF6B6;color:var(--on-neon)}
.btn--ghost{border-color:var(--line);color:var(--body)}
.btn--ghost:hover{border-color:var(--neon);color:var(--neon)}
.btn--icon{border-color:var(--line);color:var(--steel);font-weight:500}
.btn--icon:hover{color:var(--body);border-color:var(--cyan)}
.btn[aria-expanded="true"]{border-color:var(--cyan);color:var(--cyan)}
.btn--lg{padding:12px 22px;font-size:15px}
.btn--orange{background:var(--orange);border-color:var(--orange);color:var(--on-orange);font-weight:800}
.btn--orange:hover{background:#FF9155;border-color:#FF9155;color:var(--on-orange)}

/* ---------- 布局骨架 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.section{position:relative;padding:clamp(48px,7vw,96px) 0}
.section--tight{padding:clamp(28px,4vw,48px) 0}
.band{height:4px;border-radius:2px;background:linear-gradient(90deg,var(--neon),rgba(53,242,164,0) 78%)}
.band--orange{background:linear-gradient(90deg,var(--orange),rgba(255,122,47,0) 78%)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin:0 0 12px;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--neon);text-transform:uppercase;
}
.eyebrow::before{content:"";display:inline-block;width:18px;height:2px;background:var(--neon)}
.tint-neon{color:var(--neon)}
.tint-orange{color:var(--orange)}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;letter-spacing:-.02em}

.grid{display:grid;gap:24px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}

/* ---------- 卡片 / 标签 / 数据 ---------- */
.card{
  position:relative;
  padding:22px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--hull);
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--neon);box-shadow:var(--shadow)}
.card__title{margin:0 0 8px;font-size:18px;font-weight:700;color:#FFFFFF;letter-spacing:-.01em}
.card__meta{margin:0;font-size:13px;color:var(--steel)}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0;list-style:none}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border:1px solid var(--line);border-radius:100px;
  background:transparent;color:var(--steel);
  font-size:13px;font-weight:500;line-height:1.4;cursor:pointer;
  transition:color .15s ease,border-color .15s ease,background-color .15s ease;
}
.chip:hover{color:var(--body);border-color:var(--steel)}
.chip[aria-pressed="true"],.chip.is-active{background:var(--neon);border-color:var(--neon);color:var(--on-neon);font-weight:700}

.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:40px;font-weight:800;line-height:1;color:var(--neon);letter-spacing:-.04em}
.stat__label{font-size:12px;letter-spacing:.12em;color:var(--steel);text-transform:uppercase}
.stat--xl .stat__value{font-size:clamp(56px,9vw,96px)}
.stat--orange .stat__value{color:var(--orange)}

/* ---------- 图片容器基础规则 ---------- */
.figure{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  aspect-ratio:16/9;
  background:
    radial-gradient(120% 100% at 12% 0%,rgba(53,242,164,.16),transparent 58%),
    linear-gradient(180deg,#12203A,#0A1220);
}
.figure::before{
  content:"";position:absolute;inset:0;pointer-events:none;z-index:1;
  background-image:
    linear-gradient(to right,rgba(38,52,77,.85) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(38,52,77,.85) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.5;
}
.figure::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;z-index:2;
  background:linear-gradient(90deg,var(--neon),var(--orange) 70%,transparent);
}
.figure img{position:relative;z-index:0;width:100%;height:100%;object-fit:cover}
.figure--wide{aspect-ratio:21/9}
.figure--square{aspect-ratio:1/1}
.figure__cap{
  position:relative;z-index:3;
  padding:10px 14px;font-size:12px;color:var(--steel);
  border-top:1px solid var(--line);background:rgba(8,13,26,.72);
}

/* ---------- 阅读层 ---------- */
.prose{
  padding:clamp(22px,4vw,48px);
  border-radius:var(--radius);
  background:var(--paper);color:var(--ink);
  font-size:17px;line-height:1.8;
}
.prose h2,.prose h3,.prose h4{color:var(--ink)}
.prose a{color:#0B6B4A;border-bottom:1px solid rgba(11,107,74,.4)}
.prose a:hover{text-decoration:none;border-bottom-color:#0B6B4A}
.prose .num{color:var(--ink)}
.prose strong{color:var(--ink)}
.prose ul,.prose ol{padding-left:1.3em}
.prose blockquote{
  margin:0 0 1em;padding:4px 0 4px 18px;
  border-left:3px solid var(--orange);color:#33405C;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin:0 0 24px;font-size:13px;color:var(--steel)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none}
.breadcrumb li{margin:0;display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--steel)}
.breadcrumb a:hover{color:var(--neon);text-decoration:none}
.breadcrumb [aria-current="page"]{color:var(--body)}

/* ---------- 页脚 ---------- */
.site-foot{position:relative;margin-top:48px;background:#050A12;border-top:1px solid var(--line)}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--neon),var(--orange) 55%,transparent);
}
.site-foot__inner{
  display:grid;gap:32px;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr)) minmax(0,1.1fr);
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:clamp(36px,5vw,60px) var(--gut) 32px;
}
.site-foot__brand{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.site-foot__line{margin:0;font-size:14px;line-height:1.7;color:var(--body);max-width:32ch}
.site-foot__hint{margin:0;font-size:12px;line-height:1.7;color:var(--steel);max-width:34ch}

.foot-col{display:block}
.foot-col__title{
  margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--neon);text-transform:uppercase;
}
.foot-col__list{display:grid;gap:9px;margin:0;padding:0;list-style:none}
.foot-col__list li{margin:0;display:flex;flex-direction:column;gap:2px}
.foot-col__list a{font-size:14px;color:var(--steel);transition:color .15s ease}
.foot-col__list a:hover{color:var(--neon);text-decoration:none}
.foot-col__label{font-size:11px;letter-spacing:.12em;color:#5D6E8C;text-transform:uppercase}
.foot-col__value{font-size:13px;line-height:1.6;color:var(--body);word-break:break-word}

.site-foot__legal{border-top:1px solid var(--line);background:rgba(8,13,26,.6)}
.site-foot__legal-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 28px;
  width:100%;max-width:var(--wrap);margin:0 auto;
  padding:20px var(--gut);
  font-size:12px;color:var(--steel);
}
.legal-note{margin:0}
.legal-links{display:flex;flex-wrap:wrap;gap:16px;margin:0;padding:0;list-style:none}
.legal-links li{margin:0}
.legal-links a{color:var(--steel)}
.legal-links a:hover{color:var(--cyan);text-decoration:none}
.legal-copy{margin:0}

/* ---------- 显现动效 ---------- */
.reveal-on [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .55s ease,transform .55s ease;
}
.reveal-on [data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .site-foot__inner{grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr))}
  .site-foot__brand{grid-column:1 / -1}
}
@media (max-width:992px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--split{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:900px){
  .cmd-bar__inner{gap:10px}
  .nav-toggle{display:inline-flex}
  .cmd-bar__tools .btn--icon,.cmd-bar__tools .btn--ghost{display:none}
  .site-nav{
    position:fixed;top:var(--cmd-h);left:0;right:0;
    max-height:calc(100vh - var(--cmd-h));overflow-y:auto;
    padding:14px var(--gut) 32px;
    background:rgba(17,26,46,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s linear;
  }
  .site-nav[data-open]{
    opacity:1;visibility:visible;pointer-events:auto;transform:none;
  }
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__link{
    padding:15px 14px;font-size:16px;border-radius:0;
    border-bottom:1px solid var(--line);
  }
  .site-nav__link:hover{background:rgba(53,242,164,.06)}
  .site-nav__link[aria-current="page"]::before{
    left:0;right:auto;top:14px;bottom:14px;width:3px;height:auto;bottom:14px;
  }
}
@media (max-width:768px){
  body{font-size:16px}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr)}
  .site-foot__inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .site-foot__legal-inner{justify-content:flex-start}
  .breadcrumb{margin-bottom:18px}
}
@media (max-width:560px){
  .brand__status{display:none}
  .cmd-bar__inner{gap:8px}
  .btn{padding:8px 12px}
  .figure,.figure--wide{aspect-ratio:4/3}
}

/* ---------- 无障碍与降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal-on [data-reveal]{opacity:1;transform:none}
  .card:hover,.btn:hover{transform:none}
  .pulse{animation:none;opacity:1}
}