*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{max-width:100%;display:block}
button{font:inherit;color:inherit;background:none;border:0}
a{color:inherit;text-decoration:none}

:root{
  --ink:#06090F;
  --panel:#0C1726;
  --raise:#14263A;
  --line:#22405C;
  --paper:#E9F2F6;
  --mute:#93A9BB;
  --mint:#29F0BE;
  --amber:#FFA23A;
  --mint-deep:#0E7A62;
  --volt:#6E8CFF;
  --archive:#D9C9A3;

  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --pill:999px;

  --header-h:72px;
  --rail-w:56px;
  --frame:24px;
  --gap:24px;

  --ease:cubic-bezier(.2,.8,.2,1);

  --font-display:"Barlow Condensed","Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Source Han Sans SC","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

html{background:var(--ink);scroll-behavior:smooth}

body{
  position:relative;
  min-height:100vh;
  padding-top:var(--header-h);
  color:rgba(233,242,246,.88);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 520px at 10% -8%,rgba(41,240,190,.10),transparent 62%),
    radial-gradient(900px 480px at 92% 2%,rgba(110,140,255,.09),transparent 66%),
    linear-gradient(180deg,#070C14 0%,#06090F 46%,#05080D 100%);
  background-repeat:no-repeat;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:-8px;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(34,64,92,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,64,92,.16) 1px,transparent 1px);
  background-size:24px 24px;
  animation:grid-drift 40s ease-in-out infinite alternate;
}
@keyframes grid-drift{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(4px,8px,0)}
}

body::after{
  content:"";
  display:none;
  position:fixed;
  right:16px;
  bottom:16px;
  width:38px;
  height:38px;
  z-index:75;
  pointer-events:none;
  border-right:1px solid rgba(41,240,190,.45);
  border-bottom:1px solid rgba(41,240,190,.45);
  border-bottom-right-radius:10px;
}

@media (min-width:1200px){
  body{padding-left:var(--rail-w)}
  body::after{display:block}
}

h1,h2,h3,h4,h5{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.02;
  color:var(--paper);
}
h1{font-size:clamp(38px,7vw,88px);line-height:.98}
h2{font-size:clamp(28px,4vw,52px)}
h3{font-size:clamp(20px,2.2vw,28px);line-height:1.16;letter-spacing:-.01em}
h4{font-size:18px;line-height:1.3}

p{max-width:76ch}
strong{color:var(--paper);font-weight:700}

:focus-visible{
  outline:2px solid var(--mint);
  outline-offset:3px;
  border-radius:6px;
}

::selection{background:rgba(41,240,190,.28);color:#EAFBF6}

/* ===== 通用排版组件 ===== */
.display{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:.98;
  color:var(--paper);
  font-size:clamp(40px,7.6vw,96px);
}
.display--xl{font-size:clamp(52px,11vw,144px);line-height:.92}
.section-title{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.02;
  color:var(--paper);
  font-size:clamp(26px,3.6vw,44px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  line-height:1;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mint);
}
.eyebrow::before{
  content:"";
  width:16px;
  height:1px;
  background:var(--mint);
  opacity:.7;
}
.lede{
  font-size:clamp(16px,1.5vw,19px);
  line-height:1.75;
  color:var(--mute);
  max-width:62ch;
}
.prose{max-width:72ch}
.prose p+p{margin-top:1.1em}
.prose ul{list-style:none;margin:1.1em 0}
.prose li{position:relative;padding-left:20px;margin-bottom:.5em}
.prose li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:8px;height:1px;background:rgba(41,240,190,.75);
}
.num{
  font-family:var(--font-mono);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}

/* ===== 布局 ===== */
.container{
  width:100%;
  max-width:1560px;
  margin:0 auto;
  padding-left:var(--frame);
  padding-right:var(--frame);
}
.section{padding:clamp(44px,6.5vw,92px) 0}
.section--tight{padding:clamp(26px,3.6vw,48px) 0}
.stack{display:flex;flex-direction:column;gap:clamp(14px,1.6vw,22px)}
.grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:var(--gap);
}
.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-12{grid-column:span 12}
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.split--rev{grid-template-columns:7fr 5fr}

/* ===== 按钮 ===== */
.btn{
  --btn-bg:transparent;
  --btn-fg:var(--paper);
  --btn-bd:var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 20px;
  border:1px solid var(--btn-bd);
  border-radius:var(--pill);
  background:var(--btn-bg);
  color:var(--btn-fg);
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease),box-shadow .16s var(--ease),transform .16s var(--ease);
}
.btn:hover{transform:translateY(-1px)}
.btn--primary{
  --btn-bg:var(--mint);
  --btn-fg:#04241C;
  --btn-bd:var(--mint);
  box-shadow:0 12px 26px -16px rgba(41,240,190,.95);
}
.btn--primary:hover{
  --btn-bg:#5FF8D0;
  --btn-bd:#5FF8D0;
  box-shadow:0 16px 30px -14px rgba(41,240,190,.85);
}
.btn--ghost{
  --btn-fg:var(--paper);
  --btn-bd:rgba(41,240,190,.34);
  background:rgba(41,240,190,.06);
}
.btn--ghost:hover{
  --btn-bd:var(--mint);
  color:var(--mint);
  background:rgba(41,240,190,.10);
}
.btn--amber{
  --btn-fg:var(--amber);
  --btn-bd:rgba(255,162,58,.45);
  background:rgba(255,162,58,.08);
}
.btn--amber:hover{
  --btn-bg:rgba(255,162,58,.14);
  --btn-bd:var(--amber);
  box-shadow:0 10px 24px -16px rgba(255,162,58,.9);
}
.btn--sm{min-height:40px;padding:9px 15px;font-size:13px}

/* ===== 卡片 / 标签 / 媒体容器 / 表格 ===== */
.card{
  position:relative;
  padding:clamp(20px,2.4vw,28px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:linear-gradient(170deg,rgba(20,38,58,.92),rgba(12,23,38,.92));
  transition:border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.card:hover{
  border-color:rgba(41,240,190,.5);
  transform:translateY(-2px);
  box-shadow:0 18px 40px -28px rgba(41,240,190,.55);
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 13px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(12,23,38,.9);
  color:var(--mute);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  line-height:1;
  white-space:nowrap;
}
.chip--mint{border-color:rgba(41,240,190,.42);color:var(--mint);background:rgba(41,240,190,.08)}
.chip--amber{border-color:rgba(255,162,58,.42);color:var(--amber);background:rgba(255,162,58,.08)}
.chip--archive{border-color:rgba(217,201,163,.4);color:var(--archive);background:rgba(217,201,163,.07)}

.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background-color:var(--panel);
  background-image:
    linear-gradient(rgba(34,64,92,.42) 1px,transparent 1px),
    linear-gradient(90deg,rgba(34,64,92,.42) 1px,transparent 1px);
  background-size:24px 24px;
}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--tall{aspect-ratio:4/5}
.media-frame__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.media-frame__caption{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:rgba(147,169,187,.85);
}
.media-frame__tag{
  position:absolute;
  left:12px;
  top:12px;
  z-index:2;
  padding:6px 11px;
  border:1px solid rgba(217,201,163,.42);
  border-radius:var(--pill);
  background:rgba(6,9,15,.82);
  color:var(--archive);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.14em;
  line-height:1;
}

.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(20,38,58,.7);
}
.data-table{
  width:100%;
  border-collapse:collapse;
  font-family:var(--font-mono);
  font-size:13px;
  font-variant-numeric:tabular-nums;
  white-space:nowrap;
}
.data-table th{
  padding:12px 16px;
  text-align:left;
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--mute);
  border-bottom:1px solid var(--line);
}
.data-table td{
  padding:13px 16px;
  color:rgba(233,242,246,.86);
  border-bottom:1px solid rgba(34,64,92,.6);
}
.data-table tr:last-child td{border-bottom:0}
.data-table tbody tr:hover td{background:rgba(41,240,190,.06)}

/* ===== 跳转链接 ===== */
.skip-link{
  position:absolute;
  left:8px;
  top:-80px;
  z-index:120;
  padding:12px 20px;
  border-radius:0 0 var(--r-sm) var(--r-sm);
  background:var(--mint);
  color:#04241C;
  font-weight:700;
  font-size:14px;
  letter-spacing:.04em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:0}

/* ===== 头部 ===== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:80;
  background:rgba(6,9,15,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  pointer-events:none;
  background:linear-gradient(90deg,var(--mint) 0%,rgba(41,240,190,.34) 16%,rgba(34,64,92,.9) 44%,transparent 100%);
  opacity:.6;
}
@media (min-width:1200px){
  .site-header{left:var(--rail-w)}
}

.site-header__bar{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  max-width:1560px;
  margin:0 auto;
  height:var(--header-h);
  padding:0 var(--frame);
}

.brand{
  display:flex;
  align-items:center;
  gap:11px;
  flex:0 0 auto;
  min-width:0;
  color:var(--paper);
}
.brand__glyph{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  flex:0 0 auto;
  border-radius:13px;
  background:linear-gradient(150deg,#5FF8D0,var(--mint) 46%,#17C39A);
  color:#04241C;
  font-family:var(--font-display);
  font-stretch:condensed;
  font-size:21px;
  font-weight:800;
  line-height:1;
  box-shadow:0 0 0 1px rgba(41,240,190,.35),0 10px 22px -14px rgba(41,240,190,.9);
}
.brand__stack{display:flex;flex-direction:column;min-width:0}
.brand__name{
  display:block;
  font-family:var(--font-display);
  font-stretch:condensed;
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
  line-height:1.1;
  color:var(--paper);
  white-space:nowrap;
}
.brand__meta{
  display:block;
  margin-top:4px;
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:600;
  letter-spacing:.18em;
  line-height:1;
  text-transform:uppercase;
  color:rgba(147,169,187,.9);
  white-space:nowrap;
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  gap:9px;
  margin-left:auto;
  min-height:42px;
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:var(--pill);
  background:rgba(20,38,58,.9);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  line-height:1;
  text-transform:uppercase;
  cursor:pointer;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.nav-toggle:hover{border-color:rgba(41,240,190,.55);color:var(--mint)}
.nav-toggle__lines{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__lines span{
  display:block;
  height:2px;
  border-radius:2px;
  background:var(--mint);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.site-header[data-open="true"] .nav-toggle{border-color:var(--mint);color:var(--mint)}
.site-header[data-open="true"] .nav-toggle__lines span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__lines span:last-child{transform:translateY(-3px) rotate(-45deg)}

.site-header__acts{display:none}

/* 导航：移动优先为抽屉 */
.site-nav{
  position:fixed;
  top:var(--header-h);
  left:0;
  right:0;
  z-index:78;
  display:flex;
  flex-direction:column;
  gap:6px;
  max-height:calc(100vh - var(--header-h));
  overflow-y:auto;
  padding:16px var(--frame) 28px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#0A1522,#06090F);
  box-shadow:0 30px 60px -34px #000;
  visibility:hidden;
  opacity:0;
  transform:translateY(-10px);
  pointer-events:none;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s linear;
}
.site-header[data-open="true"] .site-nav{
  visibility:visible;
  opacity:1;
  transform:none;
  pointer-events:auto;
}
.site-nav__list{display:flex;flex-direction:column;gap:4px}
.site-nav__item{display:block}
.site-nav__link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding:14px 16px;
  border:1px solid transparent;
  border-radius:14px;
  color:rgba(147,169,187,.95);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1;
  transition:color .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease);
}
.site-nav__link:hover,
.site-nav__link:focus-visible{
  color:var(--paper);
  background:rgba(41,240,190,.07);
  border-color:rgba(41,240,190,.42);
}
.site-nav__link[aria-current="page"]{
  color:var(--mint);
  background:rgba(41,240,190,.10);
  border-color:rgba(41,240,190,.34);
}
.site-nav__link[aria-current="page"]::before{
  content:"";
  width:5px;
  height:5px;
  flex:0 0 auto;
  order:-1;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 10px rgba(41,240,190,.9);
}
.site-nav__foot{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:12px;
  padding-top:16px;
  border-top:1px solid rgba(34,64,92,.8);
}
.site-nav__foot .btn{width:100%;min-height:48px}

/* ===== 左侧竖轴 ===== */
.site-rail{display:none}
@media (min-width:1200px){
  .site-rail{
    display:flex;
    position:fixed;
    left:0;
    top:0;
    bottom:0;
    width:var(--rail-w);
    z-index:70;
    flex-direction:column;
    align-items:center;
    justify-content:space-between;
    padding:calc(var(--header-h) + 24px) 0 24px;
    border-right:1px solid var(--line);
    background:linear-gradient(180deg,#0A1522 0%,#08101B 54%,#06090F 100%);
    pointer-events:none;
  }
  .site-rail::before{
    content:"";
    position:absolute;
    left:50%;
    top:calc(var(--header-h) + 6px);
    width:1px;
    height:52px;
    margin-left:-.5px;
    background:linear-gradient(180deg,var(--mint),rgba(41,240,190,0));
  }
  .site-rail__label{
    writing-mode:vertical-rl;
    font-family:var(--font-mono);
    font-size:10px;
    font-weight:700;
    letter-spacing:.3em;
    line-height:1;
    text-transform:uppercase;
    color:rgba(147,169,187,.85);
  }
  .site-rail__label--b{color:rgba(217,201,163,.62)}
  .site-rail__ticks{
    flex:1 1 auto;
    width:1px;
    margin:20px 0;
    background-image:repeating-linear-gradient(180deg,var(--line) 0 1px,transparent 1px 14px);
  }
}

/* ===== 面包屑 ===== */
.breadcrumb{display:none}
@media (min-width:1200px){
  .breadcrumb{
    position:fixed;
    left:calc(var(--rail-w) + 34px);
    bottom:18px;
    z-index:76;
    display:block;
    max-width:min(420px,46vw);
  }
}
.breadcrumb__list{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  border:1px solid rgba(34,64,92,.9);
  border-radius:var(--pill);
  background:rgba(9,16,26,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.1em;
  line-height:1;
  white-space:nowrap;
  overflow:hidden;
}
.breadcrumb__item{display:inline-flex;align-items:center;min-width:0}
.breadcrumb__item--sep{color:rgba(34,64,92,1);letter-spacing:0}
.breadcrumb__link{
  color:rgba(147,169,187,.95);
  transition:color .16s var(--ease);
  overflow:hidden;
  text-overflow:ellipsis;
}
.breadcrumb__link:hover{color:var(--mint)}
.breadcrumb__current{
  color:var(--mint);
  overflow:hidden;
  text-overflow:ellipsis;
}

/* ===== 滚动进度 ===== */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  z-index:2;
  pointer-events:none;
  background:linear-gradient(90deg,var(--mint),var(--volt));
  transform:scaleX(0);
  transform-origin:0 50%;
  box-shadow:0 0 12px rgba(41,240,190,.55);
}

/* ===== 显现 ===== */
.js-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.js-reveal [data-reveal].is-revealed{opacity:1;transform:none}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#0A1220 0%,#070C14 68%,#06090F 100%);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  width:min(340px,44%);
  height:2px;
  background:linear-gradient(90deg,var(--mint),rgba(41,240,190,0));
}
.footer__inner{
  width:100%;
  max-width:1560px;
  margin:0 auto;
  padding:clamp(40px,6vw,76px) var(--frame) 26px;
}
.footer__top{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(30px,4.6vw,68px);
  align-items:start;
}
.footer__brand{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.footer__mark{
  font-family:var(--font-display);
  font-stretch:condensed;
  font-size:clamp(26px,3.2vw,34px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.05;
  color:var(--paper);
}
.footer__tagline{
  max-width:30ch;
  font-size:14px;
  line-height:1.7;
  color:rgba(147,169,187,.9);
}
.footer__badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 13px;
  border:1px solid rgba(217,201,163,.38);
  border-radius:var(--pill);
  background:rgba(217,201,163,.07);
  color:var(--archive);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  line-height:1;
  text-transform:uppercase;
}
.footer__badge::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--archive);
}
.footer__grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:26px 20px;
}
.footer__col{min-width:0}
.footer__col-title{
  margin-bottom:12px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:700;
  letter-spacing:.2em;
  line-height:1;
  text-transform:uppercase;
  color:rgba(147,169,187,.8);
}
.footer__list{display:flex;flex-direction:column;gap:2px}
.footer__link{
  position:relative;
  display:inline-block;
  padding:4px 0;
  color:rgba(233,242,246,.82);
  font-size:15px;
  line-height:1.5;
  transition:color .16s var(--ease),padding-left .16s var(--ease);
}
.footer__link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:8px;
  height:1px;
  background:var(--mint);
  transform:scaleX(0);
  transform-origin:0 50%;
  transition:transform .16s var(--ease);
}
.footer__link:hover,
.footer__link:focus-visible{color:var(--mint);padding-left:14px}
.footer__link:hover::before,
.footer__link:focus-visible::before{transform:scaleX(1)}

.footer__info{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:22px;
  border-top:1px solid rgba(34,64,92,.7);
}
.footer__contact{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.9;
  color:rgba(233,242,246,.8);
}
.footer__service{
  font-size:13px;
  line-height:1.8;
  color:rgba(147,169,187,.88);
}
.footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid rgba(34,64,92,.55);
}
.footer__legal{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  line-height:1.9;
  color:rgba(147,169,187,.72);
}

/* ===== 响应式 ===== */
@media (min-width:620px){
  .footer__grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (min-width:900px){
  .footer__top{grid-template-columns:minmax(240px,1fr) 2fr}
}
@media (max-width:900px){
  .grid{grid-template-columns:1fr}
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-12{grid-column:1/-1}
  .split,.split--rev{grid-template-columns:1fr}
}
@media (min-width:1200px){
  .nav-toggle{display:none}
  .site-nav{
    position:static;
    flex:1 1 auto;
    min-width:0;
    max-height:none;
    overflow:visible;
    padding:0;
    border:0;
    background:none;
    box-shadow:none;
    visibility:visible;
    opacity:1;
    transform:none;
    pointer-events:auto;
    transition:none;
    flex-direction:row;
    align-items:center;
    justify-content:center;
  }
  .site-nav__list{flex-direction:row;align-items:center;gap:2px}
  .site-nav__link{
    padding:9px 13px;
    border-radius:var(--pill);
    font-size:14px;
    justify-content:center;
  }
  .site-nav__foot{display:none}
  .site-header__acts{display:flex;align-items:center;gap:10px;flex:0 0 auto}
}
@media (min-width:1200px) and (max-width:1400px){
  .site-nav__link{padding:8px 10px;font-size:13px}
  .btn--sm{padding:9px 13px;font-size:12.5px}
  .brand__name{font-size:16px}
  .brand__glyph{width:34px;height:34px;border-radius:11px;font-size:19px}
}
@media (max-width:640px){
  :root{--frame:14px;--header-h:64px;--gap:16px}
  body{font-size:16px}
  .brand__meta{font-size:9px;letter-spacing:.14em}
  .brand__name{font-size:15px}
  .footer__legal{font-size:10px}
}

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