:root{
  --navy:#071A2B;
  --deep:#0B2740;
  --glass:#123B55;
  --mint:#2DF2C4;
  --amber:#FFB24A;
  --wine:#6E2A4F;
  --indigo:#4B3A8F;
  --paper:#EAF2F5;
  --mist:#9FB6C3;
  --light-panel:#F4F8F9;
  --line:rgba(159,182,195,.22);
  --line-strong:rgba(159,182,195,.42);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --radius:3px;
  --frame-w:1440px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  min-height:100vh;
  background-color:var(--navy);
  background-image:
    radial-gradient(1200px 620px at 84% -10%,rgba(45,242,196,.10),transparent 62%),
    radial-gradient(900px 520px at 6% 8%,rgba(75,58,143,.24),transparent 66%),
    linear-gradient(180deg,#071A2B 0%,#082234 58%,#071A2B 100%);
  background-attachment:fixed;
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg{display:block;max-width:100%;}
a{color:inherit;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
::selection{background:var(--mint);color:#04202c;}
:focus-visible{outline:2px solid var(--mint);outline-offset:3px;border-radius:2px;}

/* ---------- 内容容器与网格 ---------- */
.wrap{width:100%;max-width:var(--frame-w);margin:0 auto;padding:0 clamp(14px,3vw,32px);}
.grid{display:grid;gap:clamp(14px,2vw,24px);}
.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));}
.grid--split{grid-template-columns:minmax(0,3fr) minmax(0,9fr);}

/* ---------- 文字组件 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--mint);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;}
.section-title{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.9rem,3.6vw,3.2rem);line-height:1.06;
  letter-spacing:-.01em;color:var(--paper);
}
.lede{max-width:64ch;color:var(--mist);font-size:1.02rem;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border:1px solid transparent;border-radius:var(--radius);
  font-family:var(--font-mono);font-size:.82rem;letter-spacing:.1em;
  text-decoration:none;cursor:pointer;
  transition:transform .16s var(--ease),background-color .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn--primary{background:var(--mint);color:#04202c;font-weight:700;}
.btn--primary:hover{background:#5cffd8;transform:translateY(-2px);}
.btn--ghost{border-color:var(--line-strong);color:var(--paper);}
.btn--ghost:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px);}
.btn--amber{border-color:rgba(255,178,74,.55);color:var(--amber);}
.btn--amber:hover{background:var(--amber);border-color:var(--amber);color:#20140a;transform:translateY(-2px);}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;color:var(--mist);
}
.breadcrumbs li{display:inline-flex;align-items:center;}
.breadcrumbs li + li::before{content:"/";margin-right:8px;color:rgba(159,182,195,.55);}
.breadcrumbs a{color:var(--mist);text-decoration:none;border-bottom:1px solid transparent;transition:color .16s var(--ease),border-color .16s var(--ease);}
.breadcrumbs a:hover{color:var(--mint);border-bottom-color:var(--mint);}

/* ---------- 面板与标签 ---------- */
.panel{
  background:var(--deep);border:1px solid var(--line);border-radius:var(--radius);
  padding:clamp(18px,2.4vw,28px);
}
.panel--glass{
  background:linear-gradient(160deg,rgba(18,59,85,.82),rgba(11,39,64,.62));
  border-color:rgba(159,182,195,.30);
  backdrop-filter:blur(8px);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.panel--glass:hover{transform:translateY(-3px);border-color:rgba(45,242,196,.45);}
.panel--light{background:var(--light-panel);color:#08202f;border-color:rgba(7,26,43,.14);}
.panel--light a{color:#0b3a52;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border-radius:2px;
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.1em;
  background:rgba(45,242,196,.12);color:var(--mint);border:1px solid rgba(45,242,196,.35);
}
.tag--amber{background:rgba(255,178,74,.12);color:var(--amber);border-color:rgba(255,178,74,.4);}
.tag--wine{background:rgba(110,42,79,.4);color:#f2d3e1;border-color:rgba(110,42,79,.85);}

/* ---------- 图片容器基础规则 ---------- */
.figure{
  position:relative;margin:0;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(150deg,#123B55 0%,#071A2B 62%,#0a2135 100%);
}
.figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(45,242,196,.10) 0 1px,transparent 1px 10px);
  opacity:.55;
}
.figure > img{width:100%;height:100%;object-fit:cover;position:relative;z-index:1;}
.figure--wide{aspect-ratio:16/9;}
.figure--band{aspect-ratio:21/9;}
.figure--tall{aspect-ratio:3/4;}
.figure--square{aspect-ratio:1/1;}
.figure--placeholder::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 28% 18%,rgba(45,242,196,.18),transparent 55%),
    radial-gradient(circle at 78% 84%,rgba(255,178,74,.16),transparent 55%),
    linear-gradient(155deg,rgba(75,58,143,.35),rgba(7,26,43,0) 70%);
}
.figure__caption{
  display:block;margin-top:8px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;color:var(--mist);
}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;left:14px;top:-72px;z-index:200;
  padding:10px 18px;border-radius:2px;
  background:var(--mint);color:#04202c;
  font-weight:700;text-decoration:none;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:14px;}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(7,26,43,.98),rgba(11,39,64,.95));
  backdrop-filter:blur(12px);
  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(45,242,196,.16) 28%,rgba(255,178,74,.55) 70%,var(--amber) 100%);
}
.header-frame{
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(12px,2vw,28px);
  max-width:var(--frame-w);margin:0 auto;min-height:80px;
  padding:0 clamp(14px,3vw,32px);
}
.brand-block{
  display:flex;flex-direction:column;justify-content:center;gap:2px;
  min-width:0;padding:10px 0 10px 14px;
  border-left:3px solid var(--mint);
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--paper);}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:20px;flex:none;}
.brand-mark span{display:block;width:4px;border-radius:1px;background:var(--mint);}
.brand-mark span:nth-child(1){height:20px;opacity:.5;}
.brand-mark span:nth-child(2){height:12px;background:var(--amber);}
.brand-mark span:nth-child(3){height:17px;}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-name{
  font-family:var(--font-display);font-weight:800;
  font-size:1.34rem;line-height:1.1;letter-spacing:.02em;
}
.brand-sub{
  font-family:var(--font-mono);font-size:.66rem;
  letter-spacing:.16em;color:var(--mist);white-space:nowrap;
}
.brand-status{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;color:var(--mist);
}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 3px rgba(45,242,196,.18);
}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:9px 13px;border:1px solid var(--line);border-radius:2px;
  background:rgba(18,59,85,.6);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;color:var(--paper);
}
.nav-toggle:hover{border-color:rgba(45,242,196,.5);}
.nav-toggle-bars{display:inline-flex;flex-direction:column;gap:4px;width:16px;}
.nav-toggle-bars span{display:block;height:2px;background:var(--mint);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child{transform:translateY(3px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child{transform:translateY(-3px) rotate(-45deg);}
.nav-toggle-label{white-space:nowrap;}

.site-nav{display:flex;align-items:center;gap:clamp(8px,1.5vw,22px);margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 11px;border:1px solid transparent;border-radius:2px;
  font-size:.92rem;font-weight:500;color:var(--mist);
  text-decoration:none;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease),transform .18s var(--ease);
}
.nav-link::before{
  content:"";width:5px;height:5px;background:currentColor;
  opacity:.45;transform:rotate(45deg);flex:none;
}
.nav-link:hover{
  color:var(--paper);border-color:rgba(45,242,196,.4);
  background:rgba(18,59,85,.75);transform:translateY(-1px);
}
.nav-link[aria-current="page"]{
  color:var(--mint);border-color:rgba(45,242,196,.55);
  background:linear-gradient(180deg,rgba(45,242,196,.16),rgba(18,59,85,.7));
}
.nav-link[aria-current="page"]::before{opacity:1;background:var(--mint);}
.nav-quick{
  display:flex;align-items:center;gap:7px;
  padding-left:clamp(10px,1.6vw,22px);
  border-left:1px solid var(--line);
}
.quick-chip{
  display:inline-flex;align-items:center;
  padding:6px 11px;border:1px solid rgba(255,178,74,.36);border-radius:999px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.05em;
  color:var(--amber);text-decoration:none;white-space:nowrap;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.quick-chip:hover{background:var(--amber);border-color:var(--amber);color:#20140a;transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(48px,7vw,96px);
  background:linear-gradient(180deg,#0B2740 0%,#071A2B 100%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;width:58%;height:2px;pointer-events:none;
  background:linear-gradient(90deg,var(--mint),rgba(45,242,196,0));
}
.footer-frame{
  max-width:var(--frame-w);margin:0 auto;
  padding:clamp(32px,4.5vw,56px) clamp(14px,3vw,32px) 24px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(18px,3vw,40px);
}
.footer-brand{display:flex;flex-direction:column;gap:8px;}
.footer-brand-line{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.1;color:var(--paper);
}
.footer-brand-sub{
  font-family:var(--font-mono);font-size:.72rem;
  letter-spacing:.18em;color:var(--mint);
}
.footer-note{max-width:34ch;color:var(--mist);font-size:.86rem;line-height:1.65;}
.footer-note--small{font-size:.76rem;line-height:1.6;margin-top:12px;}
.footer-meta{
  display:inline-flex;align-items:center;gap:8px;margin-top:4px;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;color:var(--mist);
}
.footer-meta-key{
  padding:2px 7px;border:1px solid rgba(45,242,196,.35);border-radius:2px;
  color:var(--mint);font-size:.64rem;letter-spacing:.12em;
}
.footer-col{display:flex;flex-direction:column;gap:12px;}
.footer-title{
  font-family:var(--font-mono);font-size:.72rem;font-weight:500;
  letter-spacing:.18em;color:var(--paper);text-transform:uppercase;
  padding-bottom:8px;border-bottom:1px solid var(--line);
}
.footer-links{display:flex;flex-direction:column;gap:9px;}
.footer-link{
  display:inline-block;color:var(--mist);font-size:.9rem;text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease);
}
.footer-link:hover{color:var(--mint);border-bottom-color:var(--mint);transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact li{display:flex;flex-direction:column;gap:1px;}
.contact-label{
  font-family:var(--font-mono);font-size:.64rem;
  letter-spacing:.14em;color:rgba(159,182,195,.75);
}
.contact-value{color:var(--paper);font-size:.88rem;line-height:1.5;}
.footer-legal{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  margin-top:clamp(26px,4vw,42px);padding-top:16px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--mist);
}
.footer-copy{margin:0;}
.footer-icp{margin:0;color:rgba(159,182,195,.8);}

/* ---------- 滚动进度 ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:110;
  background:linear-gradient(90deg,var(--mint),var(--amber));
  pointer-events:none;
}

/* ---------- 显现 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1240px){
  .nav-link{padding:9px 8px;font-size:.86rem;}
  .quick-chip{padding:5px 8px;font-size:.66rem;letter-spacing:.03em;}
}

@media (max-width:1020px){
  .header-frame{min-height:68px;}
  .brand-block{padding:8px 0 8px 12px;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .site-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:8px clamp(14px,4vw,28px) 22px;
    background:linear-gradient(180deg,#0B2740 0%,#08203a 100%);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 44px rgba(0,0,0,.45);
    max-height:calc(100vh - 68px);overflow-y:auto;
  }
  .site-nav[data-open="true"]{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{
    width:100%;justify-content:flex-start;
    padding:14px 6px;border:0;border-radius:0;
    border-bottom:1px solid var(--line);
    font-size:1rem;
  }
  .nav-link::before{width:6px;height:6px;}
  .nav-link:hover{transform:none;background:rgba(18,59,85,.6);}
  .nav-link[aria-current="page"]{border-bottom-color:var(--mint);background:rgba(45,242,196,.08);}
  .nav-quick{
    flex-wrap:wrap;gap:8px;
    padding:16px 0 0;border-left:0;border-top:1px solid var(--line);
  }
  .quick-chip{padding:7px 12px;font-size:.72rem;}

  .grid--3,.grid--4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid--split{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:680px){
  .brand-name{font-size:1.12rem;}
  .brand-sub{font-size:.6rem;letter-spacing:.12em;}
  .brand-status{display:none;}
  .grid--2,.grid--3,.grid--4{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-legal{flex-direction:column;align-items:flex-start;gap:6px;}
  .footer-note{max-width:none;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
  .nav-link:hover,.quick-chip:hover,.btn:hover,.panel--glass:hover,.footer-link:hover{transform:none;}
}