:root{
  --ink:#070A12;
  --ink-2:#0E1424;
  --violet:#7C3AED;
  --violet-deep:#6D28D9;
  --cyan:#22D3EE;
  --orange:#FF7A1A;
  --white:#F5F7FF;
  --mist:#B6C0D9;
  --steel:#2A3350;
  --mint:#34D399;
  --lilac:#C4B5FD;
  --dim:#8792AE;

  --rail:232px;
  --bar:60px;
  --maxw:1440px;
  --gutter:clamp(18px,4vw,64px);
  --cut:22px;

  --font-display:'Barlow Condensed','Noto Sans SC','HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Noto Sans SC','HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-mono:'JetBrains Mono','SFMono-Regular',ui-monospace,'Cascadia Mono','Menlo',monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;background:var(--ink)}
body,h1,h2,h3,h4,h5,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
:where(a,button,summary,[tabindex]):focus-visible{
  outline:3px solid var(--cyan);
  outline-offset:2px;
  box-shadow:0 0 0 1px var(--ink);
}
::selection{background:rgba(34,211,238,.32);color:var(--white)}

body{
  background-color:var(--ink);
  color:var(--mist);
  font-family:var(--font-body);
  font-size:17px;
  font-weight:400;
  line-height:1.8;
  min-height:100vh;
  overflow-x:hidden;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.14;
  color:var(--white);
  letter-spacing:.01em;
}

/* ===== 布局基础 ===== */
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(40px,7vw,88px)}
.stack > * + *{margin-block-start:14px}
.rule{height:1px;border:0;background:var(--steel);margin-block:clamp(24px,4vw,44px)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-weight:600}

.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--cyan);
}

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 20px;
  margin-block-end:clamp(20px,3vw,36px);
}
.section-num{
  font-family:var(--font-mono);
  font-weight:600;
  font-size:clamp(40px,7vw,86px);
  line-height:.9;
  letter-spacing:-.02em;
  color:rgba(42,51,80,.9);
}
@supports (-webkit-text-stroke:1px #000){
  .section-num{color:transparent;-webkit-text-stroke:1.5px var(--steel)}
}
.section-title{
  font-size:clamp(24px,3.4vw,40px);
  line-height:1.1;
}

.lead{
  font-size:clamp(17px,2vw,20px);
  line-height:1.75;
  color:var(--white);
  max-width:62ch;
}

.prose{max-width:72ch}
.prose p + p{margin-block-start:1em}
.prose h3{font-size:clamp(19px,2.2vw,24px);margin-block:1.4em .5em}
.prose ul{list-style:disc;padding-inline-start:1.2em;margin-block:1em}
.prose li + li{margin-block-start:.35em}
.prose a{color:var(--cyan);border-block-end:1px solid rgba(34,211,238,.45)}
.prose a:hover{border-block-end-color:var(--cyan)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:15px;
  line-height:1.2;
  color:var(--white);
  background:var(--ink-2);
  border:1px solid transparent;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
  transition:transform .2s var(--ease),background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn--primary{background:var(--violet);color:#fff}
.btn--primary:hover{background:var(--violet-deep)}
.btn--accent{background:var(--orange);color:var(--ink)}
.btn--accent:hover{background:#FF9040}
.btn--ghost{background:transparent;border-color:var(--steel);color:var(--white)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--cyan);
}
.link-arrow::after{content:'→';transition:transform .2s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ===== 头部：侧边轨道 ===== */
.skip-link{
  position:fixed;
  top:10px;
  left:10px;
  z-index:999;
  padding:10px 18px;
  background:var(--cyan);
  color:var(--ink);
  font-weight:700;
  font-size:14px;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%);
  transform:translateY(-160%);
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

.site-header{
  position:fixed;
  inset-block-start:0;
  inset-inline-start:0;
  z-index:90;
  width:var(--rail);
  height:100vh;
  height:100dvh;
  display:flex;
  flex-direction:column;
  gap:20px;
  padding:24px 16px 20px;
  background:
    linear-gradient(180deg,rgba(124,58,237,.24),rgba(14,20,36,0) 46%),
    var(--ink-2);
  border-inline-end:1px solid var(--steel);
}

.brand{display:inline-flex;align-items:center;gap:11px;color:var(--white)}
.brand__mark{
  display:grid;
  place-items:center;
  width:42px;
  height:42px;
  flex:none;
  font-family:var(--font-display);
  font-weight:900;
  font-size:22px;
  color:var(--ink);
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  clip-path:polygon(0 0,100% 0,100% calc(100% - 11px),calc(100% - 11px) 100%,0 100%);
}
.brand__txt{display:flex;flex-direction:column;line-height:1.16;min-width:0}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:.04em}
.brand__tag{font-size:11px;letter-spacing:.16em;color:var(--lilac)}

.nav-toggle{
  display:none;
  align-items:center;
  gap:9px;
  padding:9px 13px;
  border:1px solid var(--steel);
  color:var(--white);
  font-size:13px;
  letter-spacing:.08em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__box{display:grid;gap:4px;width:16px}
.nav-toggle__box span{display:block;height:2px;background:currentColor;transition:transform .25s var(--ease),opacity .2s ease}
.nav-toggle__label{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em}
.site-header[data-open="true"] .nav-toggle__box span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle__box span:last-child{transform:translateY(-3px) rotate(-45deg)}

.primary-nav{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  gap:16px;
  min-height:0;
  overflow-y:auto;
  overscroll-behavior:contain;
}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-link{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--mist);
  border-inline-start:2px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.nav-link__num{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.06em;
  color:rgba(182,192,217,.55);
  transition:color .2s ease;
}
.nav-link:hover{color:var(--white);background:rgba(124,58,237,.18);border-inline-start-color:var(--violet)}
.nav-link:hover .nav-link__num{color:var(--lilac)}
.nav-link[aria-current="page"]{
  color:var(--white);
  font-weight:700;
  background:linear-gradient(90deg,rgba(34,211,238,.2),rgba(34,211,238,0) 88%);
  border-inline-start:3px solid var(--cyan);
  padding-inline-start:11px;
}
.nav-link[aria-current="page"] .nav-link__num{color:var(--cyan);font-weight:700}

.rail-foot{
  margin-block-start:auto;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding-block-start:16px;
  border-block-start:1px solid var(--steel);
}
.rail-note{font-size:11.5px;line-height:1.6;letter-spacing:.06em;color:var(--dim)}
.rail-cta{width:100%}

.nav-scrim{display:none}

.progress-rail{
  position:absolute;
  inset-block:0;
  inset-inline-end:-1px;
  width:3px;
  pointer-events:none;
  background:rgba(42,51,80,.5);
}
.progress-rail__fill{
  display:block;
  width:100%;
  height:100%;
  transform:scaleY(var(--progress,0));
  transform-origin:top center;
  background:linear-gradient(180deg,var(--cyan),var(--violet));
}

/* ===== 通用内容组件 ===== */
.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
@media (min-width:860px){
  .grid--7-5{grid-template-columns:7fr 5fr}
  .grid--8-4{grid-template-columns:8fr 4fr}
  .grid--halves{grid-template-columns:1fr 1fr}
  .grid--cards{grid-template-columns:repeat(3,minmax(0,1fr))}
}

.panel{
  position:relative;
  background:var(--ink-2);
  border:1px solid var(--steel);
  padding:clamp(20px,3vw,30px);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
  transition:transform .28s var(--ease),border-color .24s ease,background-color .24s ease;
}
.panel:hover{transform:translateY(-3px);border-color:var(--cyan)}
.panel--outline{background:transparent}
.panel--accent{
  background:linear-gradient(150deg,rgba(124,58,237,.92),rgba(76,29,149,.88));
  border-color:transparent;
  color:var(--white);
}
.panel__title{font-size:clamp(20px,2.4vw,26px);line-height:1.22;color:var(--white)}
.panel--accent .panel__title{color:#fff}
.panel__meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--cyan)}
.panel--accent .panel__meta{color:var(--lilac)}

.data-strip{
  display:grid;
  gap:1px;
  background:var(--steel);
  border-block:1px solid var(--steel);
}
@media (min-width:640px){
  .data-strip{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
}
.data-strip__item{background:var(--ink-2);padding:16px 18px;display:flex;flex-direction:column;gap:2px}
.data-strip__num{
  font-family:var(--font-mono);
  font-weight:600;
  font-variant-numeric:tabular-nums;
  font-size:clamp(20px,3vw,28px);
  color:var(--white);
  line-height:1.2;
}
.data-strip__label{font-size:12px;letter-spacing:.14em;color:var(--dim)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--mist);
  background:rgba(14,20,36,.65);
  border:1px solid var(--steel);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}
.tag--cyan{color:var(--cyan);border-color:rgba(34,211,238,.5)}
.tag--violet{color:var(--lilac);border-color:rgba(124,58,237,.65)}
.tag--orange{color:var(--orange);border-color:rgba(255,122,26,.55)}
.tag--mint{color:var(--mint);border-color:rgba(52,211,153,.5)}

.status-dot{
  display:inline-block;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--mint);
  box-shadow:0 0 0 3px rgba(52,211,153,.18);
  vertical-align:middle;
}

.table-scroll{overflow-x:auto;border:1px solid var(--steel);overscroll-behavior-x:contain}
.data-table{min-width:620px;font-size:15px}
.data-table thead th{
  background:var(--ink);
  color:var(--white);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  text-align:left;
  padding:14px 16px;
  border-block-end:2px solid var(--cyan);
  white-space:nowrap;
}
.data-table td{
  padding:13px 16px;
  border-block-end:1px solid var(--steel);
  color:var(--mist);
  vertical-align:top;
}
.data-table tbody tr:last-child td{border-block-end:0}
.data-table tbody tr:hover td{background:rgba(34,211,238,.05)}
.data-table .num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:600;
  color:var(--white);
  white-space:nowrap;
}
.data-table .is-key{background:rgba(124,58,237,.18);color:var(--white)}

.breadcrumbs{padding-block:16px 0}
.breadcrumbs__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--dim);
}
.breadcrumbs__item{display:flex;align-items:center;gap:8px}
.breadcrumbs__item + .breadcrumbs__item::before{content:'/';color:var(--steel)}
.breadcrumbs__link{color:var(--mist);transition:color .2s ease}
.breadcrumbs__link:hover{color:var(--cyan)}
.breadcrumbs__current{color:var(--cyan);font-weight:600}

.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  background:linear-gradient(150deg,#131A2E,#0A0F1B);
  border:1px solid var(--steel);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
}
.media-frame__img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.media-frame:hover .media-frame__img{transform:scale(1.03)}
.media-frame::before{
  content:'';
  position:absolute;
  inset:0;
  z-index:2;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(34,211,238,.07) 0 1px,transparent 1px 4px);
}
.media-frame::after{
  content:'';
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  background:linear-gradient(140deg,rgba(124,58,237,.55),rgba(34,211,238,.28) 72%,rgba(7,10,18,.35));
  mix-blend-mode:color;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}
.media-frame--banner{aspect-ratio:21/9}
.media-frame__tag{
  position:absolute;
  z-index:3;
  inset-block-end:14px;
  inset-inline-start:14px;
  padding:6px 12px;
  background:var(--ink);
  color:var(--cyan);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%);
}

/* ===== 显现动效 ===== */
.has-reveal [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .55s ease,transform .55s var(--ease);
}
.has-reveal [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-block-start:clamp(64px,8vw,120px);
  padding-block:clamp(40px,6vw,72px) 28px;
  padding-inline:var(--gutter);
  background:
    linear-gradient(162deg,rgba(124,58,237,.18),rgba(7,10,18,0) 58%),
    var(--ink-2);
  border-block-start:1px solid var(--steel);
}
.site-footer::before{
  content:'';
  position:absolute;
  inset-block-start:0;
  inset-inline-start:0;
  width:min(300px,45%);
  height:3px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}
.footer__main{
  max-width:var(--maxw);
  margin-inline:auto;
  display:grid;
  gap:34px;
}
@media (min-width:760px){
  .footer__main{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
}
.footer__mark{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(28px,4vw,40px);
  line-height:1.05;
  color:var(--white);
  letter-spacing:.02em;
}
.footer__brand-line{margin-block-start:12px;font-size:15px;line-height:1.7;color:var(--mist);max-width:32ch}
.footer__tag{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  color:var(--cyan);
  margin-block:12px 20px;
}
.footer__col-title{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--lilac);
  margin-block-end:14px;
}
.footer__links{display:flex;flex-direction:column;gap:9px}
.footer__links a{
  font-size:15px;
  color:var(--mist);
  border-block-end:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.footer__links a:hover{color:var(--white);border-block-end-color:var(--cyan)}

.footer__contact{
  max-width:var(--maxw);
  margin-inline:auto;
  margin-block-start:34px;
  padding-block-start:24px;
  border-block-start:1px solid var(--steel);
  display:grid;
  gap:14px;
}
@media (min-width:760px){
  .footer__contact{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px 28px}
}
.footer__contact-item{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}
.footer__contact-key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.16em;
  color:var(--dim);
}
.footer__contact-val{
  font-family:var(--font-mono);
  font-size:14px;
  color:var(--white);
  word-break:break-word;
  line-height:1.5;
}
.copy-btn{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  padding:4px 10px;
  color:var(--cyan);
  border:1px solid rgba(34,211,238,.45);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 7px),calc(100% - 7px) 100%,0 100%);
  transition:background-color .2s ease,color .2s ease;
}
.copy-btn:hover{background:rgba(34,211,238,.14);color:var(--white)}

.footer__note{
  max-width:80ch;
  margin-block-start:18px;
  font-size:13px;
  line-height:1.7;
  color:var(--dim);
}
.footer__meta{
  max-width:var(--maxw);
  margin-inline:auto;
  margin-block-start:26px;
  padding-block-start:20px;
  border-block-start:1px solid var(--steel);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
  font-family:var(--font-mono);
  font-size:12.5px;
  color:var(--dim);
}
.footer__legal{letter-spacing:.04em}
.footer__meta-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer__meta-links a{color:var(--mist);transition:color .2s ease}
.footer__meta-links a:hover{color:var(--cyan)}

/* ===== 响应式外壳 ===== */
@media (max-width:1079.98px){
  body{padding-block-start:var(--bar);font-size:16px}

  .site-header{
    width:100%;
    height:var(--bar);
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:0 16px;
    border-inline-end:0;
    border-block-end:1px solid var(--steel);
  }
  .brand__mark{width:34px;height:34px;font-size:18px}
  .brand__name{font-size:17px}
  .brand__tag{font-size:10px;letter-spacing:.12em}
  .nav-toggle{display:inline-flex}

  .primary-nav{
    position:fixed;
    inset-block-start:0;
    inset-inline-start:0;
    width:min(88vw,344px);
    height:100vh;
    height:100dvh;
    padding:calc(var(--bar) + 20px) 18px 26px;
    background:
      linear-gradient(172deg,rgba(124,58,237,.26),rgba(14,20,36,0) 44%),
      var(--ink-2);
    border-inline-end:1px solid var(--steel);
    transform:translateX(-102%);
    transition:transform .32s var(--ease);
    overflow-y:auto;
    z-index:3;
  }
  .site-header[data-open="true"] .primary-nav{transform:translateX(0)}
  .nav-list{gap:4px}
  .nav-link{
    font-family:var(--font-display);
    font-weight:700;
    font-size:21px;
    letter-spacing:.02em;
    padding:11px 14px;
    gap:14px;
  }
  .nav-link__num{font-size:12px;color:var(--lilac)}
  .nav-link[aria-current="page"]{padding-inline-start:13px}
  .rail-foot{margin-block-start:26px}

  .nav-scrim{
    display:block;
    position:fixed;
    inset:0;
    z-index:2;
    background:rgba(7,10,18,.74);
    opacity:0;
    visibility:hidden;
    transition:opacity .28s ease,visibility .28s ease;
  }
  .site-header[data-open="true"] .nav-scrim{opacity:1;visibility:visible}

  .progress-rail{
    inset:auto 0 -1px 0;
    width:100%;
    height:3px;
    background:rgba(42,51,80,.6);
  }
  .progress-rail__fill{
    width:100%;
    height:100%;
    transform:scaleX(var(--progress,0));
    transform-origin:left center;
    background:linear-gradient(90deg,var(--cyan),var(--violet));
  }

  .site-footer{padding-inline:18px}
}

@media (min-width:1080px){
  body{padding-inline-start:var(--rail);font-size:18px}
  .nav-scrim{display:none}
}

@media (max-width:600px){
  .data-table{min-width:540px}
  .footer__meta{font-size:12px}
  .btn{padding:11px 18px;font-size:14px}
}

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