:root{
  --bg-night:#0a0a0f;
  --bg-panel:#1a1a2e;
  --accent-purple:#b967ff;
  --accent-blue:#00f0ff;
  --accent-silver:#c0c0d0;
  --accent-orange:#ff9f43;
  --accent-green:#00e5a0;
  --text-bright:#e8e8f8;
  --text-dim:#8888a0;
  --line:#3a3a5a;
  --font-title:'Arial Black','PingFang SC','Microsoft YaHei',sans-serif;
  --font-body:'Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;
  --shadow-purple:0 0 8px rgba(185,103,255,0.8);
  --shadow-blue:0 0 8px rgba(0,240,255,0.6);
  --clip-corner:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px));
  --ease-cubic:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  background:var(--bg-night);
  color:var(--text-bright);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(circle at 75% 20%,rgba(185,103,255,.1),transparent 40%),
    radial-gradient(circle at 20% 80%,rgba(0,240,255,.06),transparent 35%),
    var(--bg-night);
}
body::after{
  content:'';
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(185,103,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(185,103,255,.03) 1px,transparent 1px),
    linear-gradient(rgba(0,240,255,.02) 1px,transparent 1px);
  background-size:48px 48px,48px 48px,12px 12px;
  opacity:.7;
}
img,picture,svg,video{
  display:block;
  max-width:100%;
}
a{
  color:var(--accent-blue);
  text-decoration:none;
  transition:color .3s var(--ease-cubic);
}
a:hover{
  color:var(--accent-purple);
}
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible{
  outline:2px solid var(--accent-blue);
  outline-offset:3px;
}
ul,ol{
  list-style:none;
}
button{
  font-family:inherit;
  border:none;
  background:none;
  cursor:pointer;
  color:inherit;
}
.sr-only{
  position:absolute;
  width:1px;
  height:1px;
  margin:-1px;
  padding:0;
  overflow:hidden;
  clip:rect(0,0,0,0);
  border:0;
  white-space:nowrap;
}
.skip-link{
  position:fixed;
  top:8px;
  left:50%;
  transform:translateX(-50%) translateY(-150%);
  background:var(--accent-purple);
  color:#fff;
  padding:10px 20px;
  z-index:10000;
  border-radius:4px;
  font-weight:bold;
  transition:transform .3s var(--ease-cubic);
}
.skip-link:focus{
  transform:translateX(-50%) translateY(0);
  color:#0a0a0f;
}
/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  height:3px;
  width:100%;
  background:transparent;
  z-index:9999;
  pointer-events:none;
}
.scroll-progress span{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--accent-purple),var(--accent-blue));
  box-shadow:var(--shadow-purple),var(--shadow-blue);
  transition:width .1s linear;
}
/* ---------- 通用布局 ---------- */
.container{
  width:min(1200px,100% - 48px);
  margin-inline:auto;
}
.page-shell{
  padding-top:96px;
  padding-bottom:80px;
  min-height:70vh;
  position:relative;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:.85rem;
  color:var(--text-dim);
  margin-bottom:24px;
  letter-spacing:.04em;
}
.breadcrumb a{
  color:var(--accent-silver);
}
.breadcrumb a:hover{
  color:var(--accent-blue);
}
.breadcrumb-sep{
  color:var(--accent-purple);
  margin:0 2px;
}
.page-title{
  font-family:var(--font-title);
  font-size:clamp(1.6rem,3.2vw,2.5rem);
  line-height:1.25;
  color:var(--text-bright);
  margin-bottom:16px;
  position:relative;
  padding-top:12px;
}
.page-title::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:64px;
  height:3px;
  background:linear-gradient(90deg,var(--accent-purple),var(--accent-blue));
  box-shadow:var(--shadow-purple);
}
.page-lede{
  font-size:1rem;
  color:var(--text-dim);
  max-width:720px;
  margin-bottom:40px;
  border-left:2px solid var(--accent-purple);
  padding-left:16px;
}
/* ---------- 站点头部 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:9000;
  background:rgba(10,10,15,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .4s var(--ease-cubic),box-shadow .4s var(--ease-cubic);
}
.header-inner{
  width:min(1400px,100% - 32px);
  margin-inline:auto;
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  position:relative;
}
.brand-logo{
  display:flex;
  align-items:baseline;
  gap:8px;
  letter-spacing:.02em;
  flex-shrink:0;
  z-index:9101;
}
.brand-mark{
  font-family:var(--font-title);
  font-size:1.5rem;
  color:var(--accent-purple);
  text-shadow:var(--shadow-purple);
  clip-path:polygon(0 0,100% 0,calc(100% - 6px) 100%,0 100%);
  background:rgba(185,103,255,.1);
  padding:2px 10px 2px 6px;
}
.brand-name{
  font-family:var(--font-title);
  font-size:1.2rem;
  color:var(--text-bright);
  letter-spacing:.08em;
}
.nav-command{
  flex:1;
  display:flex;
  justify-content:flex-end;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:12px;
  z-index:9101;
  background:var(--bg-panel);
  clip-path:var(--clip-corner);
  align-items:center;
  justify-content:center;
  gap:5px;
  flex-direction:column;
  transition:background .3s var(--ease-cubic);
}
.nav-toggle:hover{
  background:#26263e;
}
.burger-line{
  display:block;
  width:20px;
  height:2px;
  background:var(--accent-blue);
  transition:transform .4s var(--ease-cubic),opacity .3s ease,background .3s ease;
}
.site-header[data-open] .nav-toggle{
  background:#1a1a2e;
  border:1px solid var(--accent-purple);
}
.site-header[data-open] .burger-line:nth-child(1){
  transform:translateY(7px) rotate(45deg);
  background:var(--accent-purple);
}
.site-header[data-open] .burger-line:nth-child(2){
  opacity:0;
  transform:scaleX(.2);
}
.site-header[data-open] .burger-line:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
  background:var(--accent-purple);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-monitor{
  font-size:.75rem;
  letter-spacing:.2em;
  color:var(--text-dim);
  writing-mode:vertical-rl;
  transform:rotate(180deg);
  opacity:.6;
  font-family:monospace;
}
.nav-list{
  display:flex;
  gap:4px;
  align-items:center;
}
.nav-item{
  position:relative;
}
.nav-item::after{
  content:'/';
  color:var(--line);
  margin-left:4px;
  margin-right:4px;
}
.nav-item:last-child::after{
  display:none;
}
.nav-link{
  display:flex;
  align-items:center;
  gap:4px;
  padding:6px 2px;
  font-size:.88rem;
  color:var(--text-dim);
  transition:color .3s ease;
  position:relative;
}
.nav-link:hover{
  color:var(--text-bright);
}
.nav-index{
  font-family:monospace;
  font-size:.7rem;
  color:var(--accent-purple);
  opacity:.6;
}
.nav-label{
  font-weight:500;
  letter-spacing:.06em;
}
.nav-link[aria-current="page"]{
  color:var(--accent-blue);
  text-shadow:0 0 6px rgba(0,240,255,.4);
}
.nav-link[aria-current="page"]::before{
  content:'▶';
  font-size:.6rem;
  color:var(--accent-blue);
}
.nav-link[aria-current="page"] .nav-index{
  color:var(--accent-blue);
  opacity:1;
  text-shadow:0 0 6px rgba(0,240,255,.6);
}
.nav-meta{
  display:flex;
  gap:12px;
  align-items:center;
  font-size:.72rem;
  color:var(--accent-silver);
  border-left:1px solid var(--line);
  padding-left:16px;
}
.nav-meta-item{
  white-space:nowrap;
  padding:2px 6px;
  border:1px solid var(--line);
  clip-path:var(--clip-corner);
  background:rgba(26,26,46,.4);
  transition:border-color .3s ease,color .3s ease;
}
.nav-meta-item:hover{
  border-color:var(--accent-purple);
  color:var(--accent-purple);
}
/* ---------- 站点页脚 ---------- */
.site-footer{
  background:#0e0e1c;
  border-top:1px solid var(--line);
  color:var(--text-dim);
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--accent-purple),var(--accent-blue),transparent);
  opacity:.5;
}
.footer-top{
  width:min(1200px,100% - 48px);
  margin-inline:auto;
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.4fr;
  gap:40px;
  padding:56px 0 40px;
}
.footer-brand-name{
  font-family:var(--font-title);
  font-size:1.6rem;
  color:var(--text-bright);
  margin-bottom:12px;
  letter-spacing:.04em;
}
.footer-brand-name::after{
  content:'.';
  color:var(--accent-purple);
}
.footer-brand-desc{
  font-size:.9rem;
  color:var(--text-dim);
  max-width:300px;
  line-height:1.8;
}
.footer-heading{
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--accent-silver);
  margin-bottom:16px;
  padding-bottom:8px;
  border-bottom:1px solid var(--line);
  position:relative;
}
.footer-heading::after{
  content:'';
  position:absolute;
  bottom:-1px;
  left:0;
  width:32px;
  height:1px;
  background:var(--accent-purple);
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-link{
  color:var(--text-dim);
  font-size:.9rem;
  transition:color .3s ease,padding-left .3s ease;
  position:relative;
}
.footer-link:hover{
  color:var(--accent-blue);
  padding-left:6px;
}
.footer-link::before{
  content:'↳';
  opacity:0;
  margin-right:0;
  color:var(--accent-purple);
  transition:opacity .3s ease,margin-right .3s ease;
  position:absolute;
  left:-4px;
}
.footer-link:hover::before{
  opacity:1;
  margin-right:6px;
}
.footer-contact-list{
  display:grid;
  gap:12px;
}
.footer-contact-item{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:8px;
}
.contact-label{
  font-family:monospace;
  font-size:.75rem;
  color:var(--accent-purple);
  letter-spacing:.1em;
  padding-top:2px;
}
.contact-value{
  font-size:.88rem;
  color:var(--text-bright);
  word-break:break-all;
}
.footer-bottom{
  border-top:1px solid var(--line);
  background:rgba(10,10,15,.6);
  padding:20px 0;
}
.footer-bottom{
  width:min(1200px,100% - 48px);
  margin-inline:auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px 24px;
  font-size:.8rem;
  color:var(--text-dim);
}
.footer-copy{
  color:var(--accent-silver);
}
.footer-icp{
  font-family:monospace;
  color:var(--accent-purple);
}
.footer-tip{
  width:100%;
  font-size:.75rem;
  color:var(--text-dim);
  opacity:.6;
}
/* ---------- 通用组件 ---------- */
.site-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent-purple);
  color:#0a0a0f;
  font-weight:700;
  font-size:.88rem;
  letter-spacing:.06em;
  padding:12px 24px;
  clip-path:var(--clip-corner);
  border:1px solid rgba(185,103,255,.0);
  transition:all .3s var(--ease-cubic);
  position:relative;
  overflow:hidden;
  text-transform:uppercase;
}
.site-btn:hover{
  background:var(--accent-blue);
  box-shadow:var(--shadow-blue);
  color:#0a0a0f;
  transform:translateY(-1px);
}
.site-btn--ghost{
  background:transparent;
  color:var(--accent-blue);
  border:1px solid var(--accent-blue);
  clip-path:var(--clip-corner);
}
.site-btn--ghost:hover{
  background:rgba(0,240,255,.08);
  box-shadow:inset 0 0 20px rgba(0,240,255,.1);
}
/* ---------- 图片框架 ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  background:
    linear-gradient(135deg,rgba(185,103,255,.15),rgba(0,240,255,.08)),
    var(--bg-panel);
  clip-path:var(--clip-corner);
  border:1px solid var(--line);
}
.media-frame::after{
  content:'';
  position:absolute;
  inset:0;
  background:
    linear-gradient(120deg,transparent 30%,rgba(255,255,255,.06) 40%,transparent 50%),
    repeating-linear-gradient(0deg,transparent,transparent 3px,rgba(0,0,0,.2) 4px);
  opacity:.5;
  pointer-events:none;
  transition:opacity .4s var(--ease-cubic);
}
.media-frame:hover::after{
  opacity:.2;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease-cubic);
  position:relative;
  z-index:1;
}
.media-frame:hover img{
  transform:scale(1.03);
}
/* ---------- 网格与面板 ---------- */
.view-grid{
  display:grid;
  gap:24px;
  margin-top:32px;
}
.grid-2{
  grid-template-columns:repeat(2,1fr);
}
.grid-3{
  grid-template-columns:repeat(3,1fr);
}
.grid-4{
  grid-template-columns:repeat(4,1fr);
}
.panel{
  background:rgba(26,26,46,.65);
  border:1px solid var(--line);
  clip-path:var(--clip-corner);
  padding:24px;
  position:relative;
  transition:border-color .3s var(--ease-cubic),background .3s var(--ease-cubic),transform .3s var(--ease-cubic);
}
.panel:hover{
  border-color:rgba(185,103,255,.5);
  background:rgba(26,26,46,.9);
  transform:translateY(-2px);
}
.panel-title{
  font-family:var(--font-title);
  font-size:1rem;
  color:var(--text-bright);
  margin-bottom:8px;
  letter-spacing:.05em;
}
.panel-meta{
  font-size:.8rem;
  font-family:monospace;
  color:var(--accent-purple);
  margin-bottom:16px;
  letter-spacing:.08em;
}
.panel-text{
  font-size:.88rem;
  color:var(--text-dim);
  line-height:1.8;
}
/* ---------- 消隐显现 ---------- */
[data-reveal]{
  opacity:0;
  transform:translateY(20px);
  transition:opacity .8s var(--ease-cubic),transform .8s var(--ease-cubic);
}
[data-reveal="left"]{
  transform:translateX(-24px);
}
[data-reveal="right"]{
  transform:translateX(24px);
}
[data-reveal="zoom"]{
  transform:scale(.95);
}
[data-reveal].is-revealed{
  opacity:1;
  transform:none;
  transition-delay:var(--reveal-delay,0s);
}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .footer-top{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .nav-panel{
    gap:16px;
  }
  .nav-meta{
    display:none;
  }
  .grid-4{
    grid-template-columns:repeat(2,1fr);
  }
}
@media (max-width:768px){
  .page-shell{
    padding-top:72px;
  }
  .header-inner{
    min-height:64px;
    width:100%;
    padding:0 16px;
  }
  .nav-toggle{
    display:flex;
  }
  .nav-panel{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:100vh;
    height:100dvh;
    background:rgba(10,10,15,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    flex-direction:column;
    justify-content:center;
    align-items:flex-start;
    gap:0;
    padding:96px 32px 32px;
    z-index:9100;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .4s var(--ease-cubic),visibility .4s,transform .4s var(--ease-cubic);
  }
  .site-header[data-open] .nav-panel{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-monitor{
    writing-mode:horizontal-tb;
    transform:none;
    font-size:.7rem;
    color:var(--accent-purple);
    letter-spacing:.3em;
    margin-bottom:32px;
    border-left:2px solid var(--accent-purple);
    padding-left:12px;
  }
  .nav-list{
    flex-direction:column;
    align-items:flex-start;
    gap:12px;
    width:100%;
  }
  .nav-item{
    width:100%;
  }
  .nav-item::after{
    display:none;
  }
  .nav-link{
    font-size:1.3rem;
    padding:8px 0;
    width:100%;
    gap:12px;
    border-bottom:1px solid rgba(255,255,255,.04);
  }
  .nav-index{
    font-size:.8rem;
  }
  .nav-link[aria-current="page"]::before{
    font-size:.8rem;
  }
  .nav-meta{
    display:flex;
    width:100%;
    margin-top:32px;
    border-left:none;
    padding-left:0;
    gap:8px;
    flex-wrap:wrap;
  }
  .nav-meta-item{
    font-size:.7rem;
    padding:4px 8px;
  }
  .footer-top{
    grid-template-columns:1fr;
    gap:28px;
    padding:40px 0 32px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:16px 0;
  }
  .grid-2,
  .grid-3,
  .grid-4{
    grid-template-columns:1fr;
    gap:16px;
  }
}
@media (max-width:480px){
  .footer-top{
    grid-template-columns:1fr;
    gap:24px;
  }
  .footer-contact-item{
    grid-template-columns:40px 1fr;
  }
}
/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }
  *,
  *::before,
  *::after{
    animation-duration:0.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.01ms !important;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
  .nav-panel{
    transition:none;
  }
  .brand-mark{
    text-shadow:none;
  }
  .nav-link[aria-current="page"]{
    text-shadow:none;
  }
  .media-frame::after{
    display:none;
  }
}