:root{
  --ink:#0B1220;
  --panel:#121C2E;
  --grid-line:rgba(122,150,190,.18);
  --grid-faint:rgba(122,150,190,.07);
  --cyan:#2BD9D2;
  --orange:#FF6A2B;
  --amber:#FFB65C;
  --violet:#7A5CFF;
  --text:#F2F6FF;
  --text-2:#9FB0CC;
  --green:#3DDC97;
  --warn:#FFC857;
  --font-display:"Barlow Condensed","Noto Sans SC","PingFang SC","Hiragino Sans GB","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-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --shell:min(1400px,100% - clamp(32px,7vw,112px));
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:76px;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  min-height:100%;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 60% at 82% -8%, rgba(122,92,255,.16) 0%, rgba(11,18,32,0) 58%),
    radial-gradient(90% 50% at 0% 4%, rgba(43,217,210,.10) 0%, rgba(11,18,32,0) 55%),
    repeating-linear-gradient(90deg, var(--grid-faint) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--grid-faint) 0 1px, transparent 1px 72px);
  background-attachment:fixed,fixed,fixed,fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
#main-content{display:block;outline:none}

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

/* ---------- 排版基元 ---------- */
.display-1{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(44px,7.2vw,76px);
  line-height:.96;
  letter-spacing:-.01em;
}
.display-2{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(28px,4vw,40px);
  line-height:1.08;
  letter-spacing:-.005em;
}
.display-3{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(21px,2.2vw,26px);
  line-height:1.2;
  letter-spacing:0;
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--cyan);
}
.mono{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.lede{
  font-size:clamp(18px,1.5vw,20px);
  line-height:1.7;
  color:#D6E0F2;
  max-width:60ch;
}
.muted{color:var(--text-2)}

.prose{max-width:820px}
.prose p,.prose li{max-width:68ch}
.prose p+p{margin-top:1.1em}
.prose h2{margin-top:2.2em}
.prose h3{margin-top:1.8em}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(43,217,210,.4)}
.prose a:hover{color:var(--orange);border-bottom-color:var(--orange)}
.prose strong{color:#fff;font-weight:600}

/* ---------- 容器与网格 ---------- */
.container{width:var(--shell);margin-inline:auto}

.section{padding-block:clamp(56px,8vw,104px)}
.section--narrow{max-width:820px;margin-inline:auto}
.section--wide{padding-block:clamp(64px,9vw,120px)}
.section--flush{padding-block:0}

.stack{display:flex;flex-direction:column;gap:clamp(14px,2vw,24px)}
.stack--tight{gap:10px}
.stack--loose{gap:clamp(28px,4vw,56px)}

.grid{display:grid;gap:clamp(20px,3vw,48px)}
.grid--7-5{grid-template-columns:7fr 5fr}
.grid--8-4{grid-template-columns:8fr 4fr}
.grid--9-3{grid-template-columns:9fr 3fr}
.grid--split{grid-template-columns:1fr 1fr}
.grid--skew>*:nth-child(even){transform:translateY(clamp(14px,3vw,44px))}

@media (max-width:900px){
  .grid--7-5,.grid--8-4,.grid--9-3,.grid--split{grid-template-columns:1fr}
  .grid--skew>*:nth-child(even){transform:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 20px;
  border:1px solid var(--grid-line);
  background:rgba(18,28,46,.5);
  color:var(--text);
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:500;
  letter-spacing:.08em;
  text-transform:uppercase;
  white-space:nowrap;
  transition:border-color .24s var(--ease),color .24s var(--ease),background .24s var(--ease),transform .24s var(--ease);
}
.btn:hover,.btn:focus-visible{
  border-color:var(--orange);
  color:#fff;
  background:linear-gradient(120deg, rgba(255,106,43,.22), rgba(43,217,210,.14));
  transform:translateY(-2px);
}
.btn--solid{
  border-color:transparent;
  background:linear-gradient(120deg,var(--orange),var(--amber));
  color:#0B1220;
  font-weight:700;
}
.btn--solid:hover,.btn--solid:focus-visible{
  background:linear-gradient(120deg,var(--amber),var(--orange));
  color:#0B1220;
}
.btn--ghost{
  border-color:rgba(43,217,210,.45);
  color:var(--cyan);
  background:rgba(43,217,210,.06);
}
.btn--ghost:hover,.btn--ghost:focus-visible{
  border-color:var(--orange);
  color:#fff;
}

/* ---------- 面板 / 标签 / 状态 ---------- */
.panel{
  position:relative;
  padding:clamp(20px,3vw,36px);
  background:var(--panel);
  border:1px solid var(--grid-line);
}
.panel--cut{
  --cut:22px;
  border:1px solid transparent;
  background:
    linear-gradient(180deg,var(--panel),var(--panel)) padding-box,
    linear-gradient(135deg, rgba(43,217,210,.5), rgba(122,92,255,.28) 48%, rgba(255,106,43,.45)) border-box;
  clip-path:polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.panel--gradient{
  --cut:26px;
  color:#08101C;
  border:1px solid transparent;
  background:linear-gradient(140deg, rgba(255,106,43,.95) 0%, rgba(255,182,92,.78) 42%, rgba(122,92,255,.86) 100%);
  clip-path:polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.panel--gradient .muted,.panel--gradient .lede{color:rgba(8,16,28,.78)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 10px;
  border:1px solid var(--grid-line);
  background:rgba(18,28,46,.72);
  color:var(--text-2);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(43,217,210,.45);background:rgba(43,217,210,.08)}
.tag--orange{color:var(--orange);border-color:rgba(255,106,43,.5);background:rgba(255,106,43,.09)}
.tag--violet{color:#B0A4FF;border-color:rgba(122,92,255,.5);background:rgba(122,92,255,.10)}

.status{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-2);
}
.status::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:currentColor;
}
.status--ok{color:var(--green)}
.status--warn{color:var(--warn)}
.status--live{color:var(--cyan)}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;
  overflow:hidden;
  background:linear-gradient(150deg,var(--panel),#0E1727);
  border:1px solid var(--grid-line);
}
.media>*{width:100%;height:100%;object-fit:cover;display:block}
.media::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(140deg, rgba(43,217,210,.20) 0%, rgba(11,18,32,0) 46%, rgba(255,106,43,.18) 100%),
    repeating-linear-gradient(115deg, rgba(122,150,190,.10) 0 1px, transparent 1px 14px);
}
.media--16x9{aspect-ratio:16/9}
.media--4x3{aspect-ratio:4/3}
.media--1x1{aspect-ratio:1/1}
.media--tall{aspect-ratio:3/4}
.media--cut{clip-path:polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px))}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--text-2);
}
.breadcrumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs__sep{color:rgba(159,176,204,.45)}
.breadcrumbs [aria-current="page"]{color:var(--cyan)}

/* ---------- 头部 ---------- */
.skip-link{
  position:absolute;
  left:16px;
  top:-72px;
  z-index:120;
  padding:10px 16px;
  background:var(--cyan);
  color:#062028;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  transition:top .18s var(--ease);
}
.skip-link:focus{top:12px}

.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,18,32,.86);
  border-bottom:1px solid var(--grid-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header__inner{
  width:var(--shell);
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:clamp(16px,3vw,48px);
  min-height:var(--header-h);
  padding-block:14px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--text);
  flex:0 0 auto;
}
.brand__mark{
  display:grid;
  place-items:center;
  width:38px;
  height:38px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:19px;
  letter-spacing:.02em;
  color:#06131A;
  background:linear-gradient(140deg,var(--cyan),#14A6C4);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%);
}
.brand__text{display:flex;flex-direction:column;line-height:1.1;gap:3px}
.brand__name{
  font-family:var(--font-display);
  font-weight:800;
  font-size:20px;
  letter-spacing:.03em;
}
.brand__meta{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--text-2);
  white-space:nowrap;
}

.site-header__nav{
  display:flex;
  align-items:center;
  gap:clamp(18px,2.4vw,40px);
  margin-inline-start:auto;
}

.nav__list{
  display:flex;
  align-items:center;
  gap:clamp(12px,1.6vw,26px);
}
.nav__link{
  position:relative;
  display:inline-block;
  padding:8px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  transition:color .22s var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:2px;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--orange));
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.nav__link:hover,.nav__link:focus-visible{color:var(--text)}
.nav__link:hover::after,.nav__link:focus-visible::after{transform:scaleX(1)}
.nav__link[aria-current="page"]{color:var(--text);font-weight:600}
.nav__link[aria-current="page"]::after{transform:scaleX(1)}

.nav__link--anchor{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 15px;
  color:var(--cyan);
  border:1px solid rgba(43,217,210,.5);
  border-radius:999px;
  background:rgba(43,217,210,.06);
}
.nav__link--anchor::after{display:none}
.nav__link--anchor::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 0 rgba(43,217,210,.55);
  animation:pulse 2.6s var(--ease) infinite;
}
.nav__link--anchor:hover,.nav__link--anchor:focus-visible{
  color:#fff;
  border-color:var(--orange);
  background:rgba(255,106,43,.12);
}
.nav__link--anchor[aria-current="page"]{
  color:#fff;
  border-color:var(--cyan);
  box-shadow:inset 0 0 0 1px rgba(43,217,210,.35);
}

@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(43,217,210,.55)}
  70%{box-shadow:0 0 0 9px rgba(43,217,210,0)}
  100%{box-shadow:0 0 0 0 rgba(43,217,210,0)}
}

.header-cta{flex:0 0 auto}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-inline-start:auto;
  padding:10px 12px;
  border:1px solid var(--grid-line);
  color:var(--text);
  position:relative;
  z-index:80;
}
.nav-toggle__bars{
  position:relative;
  display:block;
  width:20px;
  height:12px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";
  position:absolute;
  left:0;
  width:100%;
  height:2px;
  background:var(--cyan);
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-2);
}
.nav-toggle[aria-expanded="true"]{border-color:rgba(255,106,43,.6)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(5px) rotate(45deg);background:var(--orange)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-5px) rotate(-45deg);background:var(--orange)}
.nav-toggle[aria-expanded="true"] .nav-toggle__label{color:var(--orange)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(96px,12vw,176px);
  background:linear-gradient(180deg, rgba(18,28,46,.68) 0%, rgba(11,18,32,1) 72%);
  border-top:1px solid var(--grid-line);
}
.site-footer__inner{
  width:var(--shell);
  margin-inline:auto;
  padding-block:clamp(44px,6vw,72px) clamp(28px,4vw,44px);
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.9fr;
  gap:clamp(24px,3vw,48px);
}
.footer-brand{display:flex;flex-direction:column;gap:16px}
.brand--footer .brand__mark{width:32px;height:32px;font-size:16px}
.brand--footer .brand__name{font-size:18px}
.footer-brand__note{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  max-width:34ch;
}
.footer-block{
  display:flex;
  flex-direction:column;
  gap:16px;
  border-left:1px solid var(--grid-line);
  padding-left:clamp(16px,2vw,28px);
}
.footer-block__title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:500;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--text-2);
}
.footer-index__list,.footer-aux__list{display:flex;flex-direction:column;gap:10px}
.footer-index__link,.footer-aux__link{
  font-size:15px;
  color:var(--text);
  transition:color .2s var(--ease),padding-left .24s var(--ease);
}
.footer-aux__link{color:var(--text-2)}
.footer-index__link:hover,.footer-aux__link:hover{color:var(--cyan);padding-left:6px}
.footer-index__link[aria-current="page"],.footer-aux__link[aria-current="page"]{
  color:var(--cyan);
  font-weight:600;
}

.footer-contact{display:flex;flex-direction:column;gap:12px}
.footer-contact__row{
  display:grid;
  grid-template-columns:76px 1fr;
  gap:12px;
  align-items:baseline;
  font-size:14px;
  line-height:1.65;
}
.footer-contact__key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--text-2);
}
.footer-contact__value{color:var(--text)}

.site-footer__base{
  width:var(--shell);
  margin-inline:auto;
  padding-block:18px clamp(28px,5vw,56px);
  border-top:1px solid var(--grid-line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-2);
}
.footer-base__copy,.footer-base__icp{margin:0}

/* ---------- 动效 ---------- */
[data-reveal]{
  opacity:0;
  transform:translate3d(24px,24px,0);
  transition:opacity .42s var(--ease),transform .42s var(--ease);
  transition-delay:var(--reveal-delay,0ms);
}
[data-reveal].is-revealed{opacity:1;transform:none}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:90;
  pointer-events:none;
  background:rgba(122,150,190,.10);
}
.scroll-progress__bar{
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--violet) 55%,var(--orange) 100%);
  transition:width .12s linear;
}

body.is-nav-open{overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1020px){
  .site-header__inner{gap:16px}
  .brand{position:relative;z-index:80}
  .nav-toggle{display:inline-flex}

  .site-header__nav{
    position:fixed;
    inset:0;
    z-index:70;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:clamp(24px,5vh,48px);
    margin:0;
    padding:clamp(96px,17vh,150px) clamp(24px,7vw,64px) 48px;
    background-color:#0B1220;
    background-image:
      radial-gradient(110% 50% at 100% 0%, rgba(122,92,255,.20) 0%, rgba(11,18,32,0) 60%),
      radial-gradient(90% 40% at 0% 100%, rgba(43,217,210,.14) 0%, rgba(11,18,32,0) 60%),
      repeating-linear-gradient(90deg, var(--grid-faint) 0 1px, transparent 1px 56px),
      repeating-linear-gradient(0deg, var(--grid-faint) 0 1px, transparent 1px 56px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translate3d(0,-16px,0);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  }
  .site-header__nav[data-open]{
    opacity:1;
    visibility:visible;
    transform:none;
  }

  .nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    counter-reset:navidx;
  }
  .nav__item{
    display:grid;
    grid-template-columns:46px 1fr;
    align-items:center;
    gap:12px;
    border-bottom:1px solid var(--grid-line);
    counter-increment:navidx;
  }
  .nav__item::before{
    content:counter(navidx,decimal-leading-zero);
    font-family:var(--font-mono);
    font-size:12px;
    letter-spacing:.1em;
    color:var(--text-2);
  }
  .nav__link{
    padding:18px 0;
    font-family:var(--font-display);
    font-size:26px;
    font-weight:800;
    letter-spacing:.01em;
    color:var(--text);
  }
  .nav__link::after{bottom:10px;right:auto;width:34px}
  .nav__link--anchor{
    display:inline-flex;
    padding:8px 16px;
    font-family:var(--font-body);
    font-size:17px;
    font-weight:600;
    margin-block:14px;
  }
  .header-cta{
    width:100%;
    padding:16px 20px;
    font-size:14px;
  }
}

@media (max-width:900px){
  .site-footer__inner{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .footer-block{border-left:0;padding-left:0}
  .footer-brand{grid-column:1 / -1}
  .footer-block--contact{grid-column:1 / -1}
}

@media (max-width:640px){
  :root{--header-h:68px}
  body{font-size:16px}
  .site-footer__inner{grid-template-columns:1fr}
  .site-footer__base{flex-direction:column;gap:6px}
  .footer-contact__row{grid-template-columns:1fr;gap:2px}
  .brand__meta{display:none}
  .nav-toggle__label{display:none}
}

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