:root{
  --c-primary:#FF3D00;
  --c-orange:#FF6D00;
  --c-amber:#FFB300;
  --c-black:#0B0B0B;
  --c-card:#1A1A1A;
  --c-nest:#242424;
  --c-white:#EDEDED;
  --c-gray:#A0A0A0;
  --c-line:#2E2E2E;
  --c-green:#00E676;
  --c-warning:#FF9100;
  --c-blue:#40C4FF;
  --font-head:"PingFang SC Heavy","Microsoft YaHei Bold","Noto Sans SC Black",sans-serif;
  --font-body:"PingFang SC","Microsoft YaHei","Inter",sans-serif;
  --font-mono:"JetBrains Mono","Roboto Mono",monospace;
  --header-w:240px;
  --gutter:clamp(1.25rem,4vw,3rem);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--c-black);color:var(--c-white);
  font-family:var(--font-body);font-size:1rem;line-height:1.75;
  min-height:100vh;-webkit-tap-highlight-color:transparent;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:28px 28px;
}
body::after{
  content:"";position:fixed;top:0;right:0;z-index:0;width:55vw;height:45vh;pointer-events:none;
  background:radial-gradient(circle at 72% 18%,rgba(255,61,0,.16),transparent 62%);
}
img,svg,video{display:block;max-width:100%;height:auto}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit;background:none;border:0;border-radius:0}
button{cursor:pointer;touch-action:manipulation}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
::selection{background:var(--c-primary);color:var(--c-black)}
#main-content{position:relative;z-index:1;scroll-margin-top:76px}
.page-shell{
  min-height:78vh;
  padding:76px var(--gutter) clamp(3rem,8vw,6rem);
}
.container{max-width:1160px;margin-inline:auto}
@media(min-width:1025px){
  .page-shell{margin-left:var(--header-w);padding-top:clamp(5rem,11vh,7.5rem)}
}
.grid{display:grid;gap:var(--gap,1.25rem);margin-bottom:clamp(2rem,5vw,3.5rem)}
.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))}
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(1rem,2vw,1.5rem);margin-bottom:clamp(2rem,5vw,3.5rem)}
.bento-item{min-width:0}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-12{grid-column:span 12}
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bento-item.col-3,.bento-item.col-4,.bento-item.col-5,.bento-item.col-6,.bento-item.col-7{grid-column:span 6}
  .bento-item.col-8,.bento-item.col-9{grid-column:span 12}
}
@media(max-width:600px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .bento-item[class*="col-"]{grid-column:span 12}
}
.kicker{
  display:inline-flex;align-items:center;gap:.625rem;
  font-family:var(--font-mono);font-size:.6875rem;font-weight:700;
  letter-spacing:.18em;text-transform:uppercase;color:var(--c-orange);
  margin-bottom:.875rem;
}
.kicker::before{content:"";height:1px;width:32px;background:linear-gradient(90deg,var(--c-primary),var(--c-orange))}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:1.25rem;
  border-bottom:1px solid var(--c-line);padding-bottom:.75rem;margin-bottom:1.5rem;
}
.section-title{
  font-family:var(--font-head);font-size:clamp(1.375rem,3vw,1.75rem);
  font-weight:800;line-height:1.2;color:var(--c-white);letter-spacing:.01em;
}
.section-link{font-family:var(--font-mono);font-size:.75rem;color:var(--c-gray);white-space:nowrap;border-bottom:1px solid var(--c-line);padding-bottom:2px;transition:color .2s,border-color .2s}
.section-link:hover{color:var(--c-primary);border-color:var(--c-primary)}
.section-link::after{content:" →"}
.btn-group{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);
  font-size:.8125rem;font-weight:700;letter-spacing:.04em;padding:.625rem 1.25rem;
  border:1px solid transparent;transition:filter .2s,border-color .2s,background .2s;
  touch-action:manipulation;
}
.btn-primary{position:relative;background:linear-gradient(135deg,var(--c-primary),var(--c-orange));color:#0B0B0B}
.btn-primary::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(135deg,transparent 0 12px,rgba(0,0,0,.14) 12px 16px);
  mix-blend-mode:multiply;
}
.btn-primary:hover{filter:brightness(1.08)}
.btn-ghost{color:var(--c-white);border-color:var(--c-line);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,61,0,.08)}
.tag{
  display:inline-block;font-family:var(--font-mono);font-size:.6875rem;
  letter-spacing:.12em;padding:.125rem .5rem;border:1px solid var(--c-line);
  color:var(--c-gray);margin-right:.375rem;margin-bottom:.375rem;
}
.tag-hot{border-color:rgba(255,61,0,.7);color:var(--c-orange)}
.tag-new{border-color:rgba(255,179,0,.7);color:var(--c-amber)}
.card{
  background:var(--c-card);border:1px solid var(--c-line);
  padding:clamp(1.125rem,2.5vw,1.75rem);position:relative;
  transition:border-color .2s,background .2s;
}
.card:hover{border-color:rgba(255,61,0,.55)}
.card-title{font-family:var(--font-head);color:var(--c-white);font-size:1.125rem;font-weight:800;margin-bottom:.5rem}
.card-index{font-family:var(--font-mono);font-size:.8125rem;color:var(--c-primary);display:block;margin-bottom:.375rem}
.card p{color:var(--c-gray);font-size:.875rem}
@media(prefers-reduced-motion:no-preference){
  .card:hover{transform:translate3d(0,-2px,0)}
}
.stat-value{font-family:var(--font-mono);font-size:clamp(1.75rem,4vw,2.5rem);font-weight:800;line-height:1.1;color:var(--c-white)}
.stat-value[data-tone="up"]{color:var(--c-green)}
.stat-value[data-tone="warn"]{color:var(--c-warning)}
.stat-value[data-tone="alert"]{color:var(--c-primary)}
.stat-label{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;color:var(--c-gray);margin-top:.375rem;display:flex;align-items:center;gap:.5rem}
.stat-label::before{content:"";width:16px;height:1px;background:var(--c-primary)}
.data-table{width:100%;border-collapse:collapse;font-family:var(--font-mono);font-size:.8125rem}
.data-table th{color:var(--c-gray);font-weight:600;font-size:.6875rem;letter-spacing:.12em;text-align:left;padding:.75rem 1rem;border-bottom:1px solid var(--c-line)}
.data-table td{padding:.75rem 1rem;border-bottom:1px solid var(--c-line);color:var(--c-white)}
.data-table tr:hover td{background:var(--c-nest)}
.data-table .num{text-align:right;font-feature-settings:"tnum"}
.notice{background:var(--c-card);border-left:2px solid var(--c-primary);padding:1.125rem 1.25rem;margin:1.5rem 0;font-size:.875rem;color:var(--c-gray)}
.notice::before{content:"NOTE / ";font-family:var(--font-mono);font-size:.75rem;color:var(--c-primary)}
.notice strong{color:var(--c-white)}
.prose p{margin-bottom:1.25em;color:var(--c-gray);max-width:68ch}
.prose h2{font-family:var(--font-head);font-size:1.375rem;font-weight:800;color:var(--c-white);margin:2.25rem 0 .875rem}
.prose h3{font-family:var(--font-head);font-size:1.125rem;font-weight:700;color:var(--c-white);margin:1.75rem 0 .75rem}
.prose a{color:var(--c-blue);border-bottom:1px solid rgba(64,196,255,.35);transition:border-color .2s}
.prose a:hover{border-bottom-color:var(--c-blue)}
.prose ul,.prose ol{margin-bottom:1.25em;padding-left:1.5em;color:var(--c-gray)}
.prose ul{list-style:square}
.prose li{margin-bottom:.375em}
.prose blockquote{border-left:2px solid var(--c-primary);padding-left:1rem;color:var(--c-gray);margin:1.5rem 0}
.breadcrumb{display:flex;flex-wrap:wrap;gap:.5rem;font-family:var(--font-mono);font-size:.75rem;color:var(--c-gray);margin-bottom:2rem}
.breadcrumb li+li::before{content:"/";color:var(--c-line);margin-right:.5rem}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current="page"]{color:var(--c-white)}
.media-frame{position:relative;overflow:hidden;background:var(--c-nest);border:1px solid var(--c-line)}
.media-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,61,0,.1),transparent 55%);pointer-events:none;z-index:1}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
@media(prefers-reduced-motion:no-preference){
  .media-frame:hover img{transform:scale(1.02)}
}
.media-ratio-wide{aspect-ratio:21/9}
.media-ratio-desktop{aspect-ratio:16/9}
.media-ratio-card{aspect-ratio:4/3}
.media-ratio-square{aspect-ratio:1/1}
.media-note{position:absolute;left:.75rem;bottom:.75rem;z-index:2;background:rgba(11,11,11,.82);color:var(--c-gray);font-family:var(--font-mono);font-size:.625rem;letter-spacing:.14em;padding:.25rem .5rem;border:1px solid var(--c-line)}
@media(max-width:700px){
  .media-ratio-wide,.media-ratio-desktop{aspect-ratio:4/3}
}
.site-header{position:fixed;inset:0;z-index:200;pointer-events:none}
.skip-link{
  position:fixed;top:0;left:0;z-index:500;transform:translateY(-120%);
  background:linear-gradient(135deg,var(--c-primary),var(--c-orange));
  color:#0B0B0B;font-family:var(--font-head);font-weight:800;font-size:.875rem;
  padding:.75rem 1.5rem;transition:transform .2s ease;
}
.skip-link:focus{transform:translateY(0);outline:none;box-shadow:0 4px 24px rgba(255,61,0,.4)}
.header-progress{position:absolute;top:0;left:0;right:0;height:2px;z-index:260;pointer-events:none}
.header-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c-primary),var(--c-orange),var(--c-amber));box-shadow:0 0 8px rgba(255,61,0,.5)}
.brand-block{position:absolute;top:0;left:0;padding:clamp(1.25rem,3vw,2.25rem) clamp(1.25rem,3vw,2rem);pointer-events:auto;z-index:220}
.brand{display:inline-flex;flex-direction:column;align-items:flex-start;gap:.375rem}
.brand-sigil{display:inline-block;background:linear-gradient(135deg,var(--c-primary),var(--c-orange));color:#0B0B0B;font-family:var(--font-mono);font-weight:800;font-size:1.125rem;letter-spacing:.1em;padding:.375rem .625rem;line-height:1;box-shadow:0 0 0 1px rgba(255,61,0,.3)}
.brand-cn{font-family:var(--font-head);font-weight:900;font-size:clamp(1.25rem,2vw,1.5rem);line-height:1.1;letter-spacing:.08em;color:var(--c-white)}
.brand-trust{display:inline-block;border:1px solid var(--c-amber);color:var(--c-amber);font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.12em;padding:.125rem .5rem;line-height:1.4}
.site-nav{
  position:absolute;top:50%;left:clamp(1.25rem,3vw,2.25rem);transform:translateY(-50%);
  display:flex;flex-direction:column;gap:2px;max-height:68vh;overflow-y:auto;
  pointer-events:auto;z-index:230;
}
.nav-item{
  display:flex;align-items:center;gap:.75rem;padding:.625rem 1rem;
  border-left:2px solid var(--c-line);color:var(--c-gray);
  font-family:var(--font-mono);font-size:.8125rem;letter-spacing:.06em;
  white-space:nowrap;transition:color .2s,border-color .2s,background .2s;
  touch-action:manipulation;
}
.nav-item::before{content:attr(data-index);font-size:.625rem;color:var(--c-primary);opacity:.85;letter-spacing:0;line-height:1}
.nav-item:hover{border-left-color:var(--c-primary);color:var(--c-white);background:linear-gradient(90deg,rgba(255,61,0,.14),transparent 70%)}
.nav-item[aria-current="page"]{border-left-color:var(--c-amber);background:linear-gradient(90deg,var(--c-primary),var(--c-orange));color:#0B0B0B;font-weight:700}
.nav-item[aria-current="page"]::before{color:#0B0B0B;opacity:.8}
.nav-item[aria-current="page"]:hover{filter:brightness(1.06)}
.nav-item:focus-visible{outline:2px solid var(--c-amber);outline-offset:-2px}
.nav-backdrop{display:none}
.header-tools{position:absolute;top:0;right:0;display:flex;align-items:center;gap:.75rem;padding:clamp(1.25rem,3vw,2rem);pointer-events:auto;z-index:240}
.tool-link{font-family:var(--font-mono);font-size:.8125rem;color:var(--c-gray);border:1px solid var(--c-line);padding:.5rem .875rem;transition:color .2s,border-color .2s,background .2s;touch-action:manipulation}
.tool-link:hover,.tool-link:focus-visible{color:var(--c-white);border-color:var(--c-primary);background:rgba(255,61,0,.08)}
.tool-live{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.8125rem;font-weight:800;color:#0B0B0B;background:linear-gradient(135deg,var(--c-primary),var(--c-orange));padding:.5rem 1rem;transition:filter .2s,box-shadow .2s;touch-action:manipulation}
.tool-live::before{content:"";width:6px;height:6px;background:#0B0B0B;border-radius:50%;flex:0 0 auto}
@media(prefers-reduced-motion:no-preference){
  .tool-live::before{animation:pulse 1.5s steps(2,start) infinite}
}
@keyframes pulse{
  0%,45%{opacity:1}
  50%,100%{opacity:.2}
}
.tool-live:hover{filter:brightness(1.08);box-shadow:0 0 0 3px rgba(255,61,0,.25)}
.nav-toggle{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:.25rem;
  width:48px;height:42px;border:1px solid var(--c-line);background:var(--c-card);
  transition:border-color .2s;touch-action:manipulation;
}
.nav-toggle:hover{border-color:var(--c-primary)}
.toggle-bars{display:flex;flex-direction:column;gap:4px;width:20px}
.toggle-line{display:block;height:2px;width:100%;background:var(--c-primary);transition:transform .2s ease,opacity .2s ease}
.toggle-text{font-family:var(--font-mono);font-size:.5625rem;letter-spacing:.12em;color:var(--c-gray);line-height:1}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .toggle-line:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.frame-side{
  position:absolute;top:50%;right:1rem;transform:translateY(-50%);
  writing-mode:vertical-rl;font-family:var(--font-mono);font-size:.625rem;
  letter-spacing:.42em;color:#3A3A3A;white-space:nowrap;pointer-events:none;z-index:210;
}
@media(max-width:1024px){
  .site-header{
    top:0;left:0;right:0;bottom:auto;width:100%;height:60px;pointer-events:auto;
    display:flex;align-items:center;justify-content:space-between;padding:0 1rem;
    background:rgba(11,11,11,.96);border-bottom:1px solid var(--c-line);
  }
  .brand-block{position:static;padding:0}
  .brand{flex-direction:row;align-items:center;gap:.5625rem}
  .brand-sigil{font-size:1rem;padding:.3125rem .5rem}
  .brand-cn{font-size:1.125rem}
  .brand-trust{display:none}
  .header-tools{position:static;padding:0;gap:.5rem}
  .tool-link{display:none}
  .tool-live{font-size:.75rem;padding:.375rem .75rem}
  .nav-toggle{display:flex}
  .site-nav{
    position:fixed;top:60px;bottom:0;left:0;width:min(320px,86vw);
    max-height:none;transform:translateX(-101%);transition:transform .2s ease;
    background:#0F0F0F;border-right:1px solid var(--c-line);
    padding:clamp(1.5rem,5vw,2.5rem) 1.25rem;gap:0;z-index:300;
    overflow-y:auto;box-shadow:none;
  }
  .site-nav::before{content:"";position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-orange))}
  .site-nav[data-open="true"]{transform:translateX(0);box-shadow:12px 0 48px rgba(0,0,0,.55)}
  .nav-item{border-left:none;border-bottom:1px solid var(--c-line);padding:1rem .5rem;font-size:.875rem}
  .nav-item:hover{background:rgba(255,61,0,.12)}
  .nav-item[aria-current="page"]{background:linear-gradient(90deg,rgba(255,61,0,.2),transparent);color:var(--c-orange);border-left:none}
  .nav-item[aria-current="page"]::before{color:var(--c-primary)}
  .nav-backdrop{
    display:block;position:fixed;inset:60px 0 0 0;z-index:290;
    background:rgba(4,4,4,.7);opacity:0;pointer-events:none;transition:opacity .2s ease;
  }
  .site-nav[data-open="true"] ~ .nav-backdrop{opacity:1;pointer-events:auto}
  .frame-side{display:none}
}
.site-footer{position:relative;z-index:1;background:#060606;border-top:1px solid var(--c-line);padding:clamp(2.5rem,6vw,4.5rem) var(--gutter) 2rem}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;width:min(260px,40vw);height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-orange),var(--c-amber))}
.footer-inner{max-width:1160px;margin-inline:auto;display:grid;grid-template-columns:1.7fr 1fr;gap:clamp(2rem,7vw,5rem);align-items:start}
.footer-meta{display:flex;flex-direction:column;align-items:flex-start;gap:1.25rem}
.footer-brand{display:inline-flex;align-items:center;gap:.75rem}
.footer-desc{color:var(--c-gray);font-size:.875rem;max-width:46ch;line-height:1.8}
.footer-links{display:flex;flex-wrap:wrap;gap:.5rem 1.75rem}
.footer-links a{font-family:var(--font-mono);font-size:.75rem;color:var(--c-gray);padding:.25rem 0;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.footer-links a:hover{color:var(--c-white);border-bottom-color:var(--c-primary)}
.footer-icp{font-family:var(--font-mono);font-size:.6875rem;color:#555;letter-spacing:.06em}
.footer-contact{border-left:2px solid var(--c-line);padding-left:clamp(1.25rem,3vw,2rem);display:flex;flex-direction:column;gap:.375rem}
.contact-label{font-family:var(--font-head);font-weight:800;font-size:1rem;color:var(--c-amber);margin-bottom:.625rem;letter-spacing:.04em}
.contact-email,.contact-phone,.contact-address{font-family:var(--font-mono);font-size:.8125rem;color:var(--c-white);display:block;line-height:1.6}
.contact-email::before,.contact-phone::before,.contact-address::before{font-family:var(--font-mono);color:var(--c-gray);margin-right:.5rem}
.contact-email::before{content:"E /"}
.contact-phone::before{content:"T /"}
.contact-address::before{content:"A /"}
.footer-note{font-size:.75rem;color:#777;margin:.25rem 0 .75rem}
.contact-btn{
  align-self:flex-start;display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--font-mono);font-size:.8125rem;font-weight:800;color:#0B0B0B;
  background:linear-gradient(135deg,var(--c-primary),var(--c-orange));
  padding:.625rem 1.125rem;margin-top:.375rem;transition:filter .2s,box-shadow .2s;
  touch-action:manipulation;
}
.contact-btn::after{content:"→"}
.contact-btn:hover{filter:brightness(1.08);box-shadow:0 0 0 3px rgba(255,61,0,.22)}
.footer-toplink{
  grid-column:1 / -1;justify-self:end;font-family:var(--font-mono);font-size:.75rem;
  color:var(--c-gray);border:1px solid var(--c-line);padding:.5rem 1rem;
  display:inline-flex;align-items:center;gap:.5rem;transition:color .2s,border-color .2s,background .2s;
  touch-action:manipulation;
}
.footer-toplink::before{content:"↑";color:var(--c-primary);font-weight:800}
.footer-toplink:hover{color:var(--c-white);border-color:var(--c-primary);background:rgba(255,61,0,.08)}
@media(max-width:700px){
  .footer-inner{grid-template-columns:1fr;gap:2.5rem}
  .footer-contact{border-left:0;border-top:1px solid var(--c-line);padding-left:0;padding-top:1.5rem}
  .footer-toplink{justify-self:stretch;justify-content:center}
}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#0B0B0B}
::-webkit-scrollbar-thumb{background:#333;border:1px solid #0B0B0B}
::-webkit-scrollbar-thumb:hover{background:var(--c-primary)}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
}