:root{
  --ink:#04100c;
  --ink-2:#071a14;
  --felt:#0a2620;
  --felt-2:#0e332a;
  --gold:#d9a33c;
  --gold-l:#f4d488;
  --gold-d:#8a6420;
  --neon:#9a5cff;
  --ember:#ff8b3d;
  --text:#e8f1ec;
  --muted:#8fa79c;
  --line:rgba(217,163,60,.22);
  --line-soft:rgba(232,241,236,.09);
  --maxw:1200px;
  --rail:clamp(16px,4vw,44px);
  --font-serif:"Songti SC","STSong","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  color:var(--text);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 640px at 82% -12%, rgba(154,92,255,.16), transparent 62%),
    radial-gradient(880px 560px at 4% 6%, rgba(217,163,60,.10), transparent 60%),
    linear-gradient(rgba(217,163,60,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217,163,60,.045) 1px, transparent 1px);
  background-size:auto, auto, 76px 76px, 76px 76px;
  background-attachment:fixed;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2}
p{margin:0}
::selection{background:var(--gold);color:#08150f}
:focus-visible{outline:2px solid var(--gold-l);outline-offset:3px;border-radius:2px}

/* ============ 布局 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:var(--rail)}
.section{position:relative;padding:clamp(48px,7vw,104px) 0}
.section--tight{padding:clamp(26px,4vw,54px) 0}
.section-head{display:flex;flex-direction:column;gap:10px;max-width:62ch;margin-bottom:clamp(22px,3.2vw,42px)}
.section-label{font:400 11px/1 var(--font-mono);letter-spacing:.3em;text-transform:uppercase;color:var(--gold)}
.section-title{font-family:var(--font-serif);font-size:clamp(24px,3.6vw,42px);letter-spacing:.01em;color:var(--text)}
.section-desc{font-size:15.5px;line-height:1.85;color:var(--muted)}
.grid{display:grid;gap:clamp(16px,2.4vw,30px)}
.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--12{grid-template-columns:repeat(12,minmax(0,1fr))}
.rule{height:1px;border:0;margin:0;background:linear-gradient(90deg,rgba(217,163,60,.5),rgba(217,163,60,0))}

/* ============ 面板 / 按钮 / 标签 ============ */
.panel{
  position:relative;
  padding:clamp(18px,2.4vw,30px);
  background:linear-gradient(160deg,rgba(14,51,42,.72),rgba(5,18,14,.88));
  border:1px solid var(--line-soft);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.panel--outline{background:transparent;border-color:var(--line)}
.panel--outline::before{content:"";position:absolute;top:0;left:0;width:34px;height:2px;background:linear-gradient(90deg,var(--gold),transparent)}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;
  font:500 14px/1 var(--font-sans);letter-spacing:.08em;
  color:var(--text);background:rgba(255,255,255,.02);
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - 12px) 0,100% 12px,100% 100%,12px 100%,0 calc(100% - 12px));
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn--gold{background:linear-gradient(135deg,var(--gold-l),var(--gold) 62%,var(--gold-d));color:#0a1a12;border-color:transparent;font-weight:700}
.btn--gold:hover{background:linear-gradient(135deg,#fff0c4,var(--gold-l) 60%,var(--gold))}
.btn--ghost{background:transparent;border-color:rgba(217,163,60,.45);color:var(--gold-l)}
.btn--ghost:hover{background:rgba(217,163,60,.12)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;
  font:400 11px/1.5 var(--font-mono);letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);border:1px solid rgba(217,163,60,.35);background:rgba(217,163,60,.07);
}
.tag--neon{color:#c9a9ff;border-color:rgba(154,92,255,.42);background:rgba(154,92,255,.1)}
.tag--ember{color:#ffb37a;border-color:rgba(255,139,61,.42);background:rgba(255,139,61,.1)}

/* ============ 数据 ============ */
.stat-row{display:flex;flex-wrap:wrap;gap:clamp(20px,4vw,56px)}
.stat{display:flex;flex-direction:column;gap:6px}
.stat-value{font:700 clamp(28px,4.2vw,46px)/1 var(--font-mono);letter-spacing:-.02em;color:var(--gold-l)}
.stat-label{font:400 11.5px/1.5 var(--font-mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}

/* ============ 正文排版 ============ */
.prose{max-width:68ch;font-size:16.5px;line-height:1.9;color:#cfe0d8}
.prose h2{font-family:var(--font-serif);font-size:clamp(20px,2.4vw,27px);color:var(--text);margin:2.2em 0 .7em}
.prose h3{font-family:var(--font-serif);font-size:clamp(17px,2vw,20px);color:var(--text);margin:1.8em 0 .6em}
.prose p{margin:0 0 1.1em}
.prose ul{margin:0 0 1.2em}
.prose li{position:relative;padding-left:20px;margin-bottom:.55em}
.prose li::before{content:"";position:absolute;left:0;top:.85em;width:8px;height:1px;background:var(--gold)}
.prose strong{color:var(--gold-l);font-weight:700}
.prose a{color:var(--gold-l);border-bottom:1px solid rgba(217,163,60,.42)}

/* ============ 面包屑 ============ */
.breadcrumb{padding:20px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font:400 12px/1.6 var(--font-mono);letter-spacing:.12em;color:var(--muted)}
.breadcrumb-item{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-item + .breadcrumb-item::before{content:"/";color:var(--gold-d)}
.breadcrumb-link{color:var(--muted);transition:color .2s ease}
.breadcrumb-link:hover{color:var(--gold-l)}
.breadcrumb-current{color:var(--gold)}

/* ============ 图片容器 ============ */
.media{
  position:relative;overflow:hidden;display:block;
  background:linear-gradient(150deg,var(--felt-2),#04120e);
  border:1px solid var(--line-soft);
}
.media::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(135deg,rgba(217,163,60,.12),transparent 46%),
    linear-gradient(rgba(232,241,236,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(232,241,236,.035) 1px,transparent 1px);
  background-size:auto,44px 44px,44px 44px;
}
.media img{position:relative;z-index:0;width:100%;height:100%;object-fit:cover;display:block}
.media--wide{aspect-ratio:16/9}
.media--square{aspect-ratio:1/1}
.media--portrait{aspect-ratio:3/4}
.media--tall{aspect-ratio:4/5}
.media--cut{clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,26px 100%,0 calc(100% - 26px))}
.media-caption{margin-top:10px;font:400 12px/1.6 var(--font-mono);letter-spacing:.1em;color:var(--muted)}
.media-grid{display:grid;gap:clamp(14px,2vw,24px);grid-template-columns:repeat(3,minmax(0,1fr))}

/* ============ 显现 ============ */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ============ 页头 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg,rgba(4,16,12,.97),rgba(4,16,12,.88));
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.skip-link{
  position:absolute;left:14px;top:-70px;z-index:120;
  padding:11px 20px;
  font:700 13px/1 var(--font-sans);letter-spacing:.08em;
  color:#08150f;background:linear-gradient(135deg,var(--gold-l),var(--gold));
  transition:top .22s ease;
}
.skip-link:focus{top:12px}
.scroll-progress{position:absolute;left:0;bottom:-1px;width:100%;height:2px;z-index:2;background:rgba(255,255,255,.06);pointer-events:none}
.scroll-progress > span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--neon),var(--gold) 55%,var(--ember))}
.header-inner{
  display:flex;align-items:center;gap:clamp(14px,3vw,36px);
  width:100%;max-width:var(--maxw);margin:0 auto;
  padding-inline:var(--rail);min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;display:grid;place-items:center;flex:0 0 auto;
  font:700 18px/1 var(--font-serif);color:#08150f;
  background:linear-gradient(140deg,var(--gold-l),var(--gold) 55%,var(--gold-d));
  clip-path:polygon(24% 0,100% 0,100% 76%,76% 100%,0 100%,0 24%);
}
.brand-text{display:flex;flex-direction:column;gap:3px}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;letter-spacing:.06em;line-height:1;color:var(--text)}
.brand-sub{font:400 9.5px/1 var(--font-mono);letter-spacing:.26em;color:var(--gold);opacity:.78}

.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(2px,1.2vw,10px)}
.nav-item{display:block}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:7px;
  padding:11px 12px;
  font:500 13.5px/1 var(--font-sans);letter-spacing:.08em;color:#b9cec4;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .28s ease;
}
.nav-link:hover{color:var(--gold-l)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--gold-l)}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:linear-gradient(90deg,var(--gold),var(--ember))}
.nav-idx{font:400 10px/1 var(--font-mono);letter-spacing:0;color:var(--gold);opacity:.55}
.nav-link[aria-current="page"] .nav-idx{opacity:1}

.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  padding:11px 15px;
  font:500 12px/1 var(--font-mono);letter-spacing:.2em;color:var(--gold-l);
  border:1px solid var(--line);background:rgba(217,163,60,.06);
  clip-path:polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}
.nav-toggle-bars{position:relative;display:block;width:18px;height:10px}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:100%;height:1px;background:currentColor;
  transition:transform .25s ease;
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.site-header[data-open] .nav-toggle-bars::before{transform:translateY(4.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars::after{transform:translateY(-4.5px) rotate(-45deg)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,90px);
  color:var(--muted);
  background:linear-gradient(180deg,#04120e,#02100b 58%,#010b08);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold) 28%,var(--neon) 68%,transparent);
  opacity:.6;
}
.footer-grid{
  display:grid;gap:clamp(26px,4vw,48px);
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  padding-top:clamp(38px,5vw,66px);
  padding-bottom:clamp(30px,4vw,52px);
}
.footer-block{display:flex;flex-direction:column;gap:12px}
.footer-block--brand{gap:14px}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-mark{
  width:34px;height:34px;display:grid;place-items:center;flex:0 0 auto;
  font:700 15px/1 var(--font-serif);color:#08150f;
  background:linear-gradient(140deg,var(--gold-l),var(--gold));
  clip-path:polygon(24% 0,100% 0,100% 76%,76% 100%,0 100%,0 24%);
}
.footer-brand-name{font-family:var(--font-serif);font-size:16px;font-weight:700;letter-spacing:.06em;color:var(--text)}
.footer-tagline{font:400 11.5px/1.8 var(--font-mono);letter-spacing:.16em;color:var(--gold);opacity:.85}
.footer-note{max-width:34ch;font-size:13px;line-height:1.85;color:#7d968b}
.footer-title{font:400 11px/1 var(--font-mono);letter-spacing:.28em;text-transform:uppercase;color:var(--gold)}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-link{display:inline-block;font-size:13.5px;color:#a9c0b6;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--gold-l);transform:translateX(3px)}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact-item{display:flex;gap:10px;font-size:13px;line-height:1.75;color:#a9c0b6}
.footer-contact-key{flex:0 0 auto;min-width:36px;font:400 11px/1.9 var(--font-mono);letter-spacing:.16em;color:var(--gold);opacity:.75}
.footer-bottom{border-top:1px solid var(--line-soft);background:rgba(0,0,0,.28)}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding-top:18px;padding-bottom:18px;
}
.footer-legal{font:400 12px/1.6 var(--font-mono);letter-spacing:.1em;color:#758d82}
.footer-legal--dim{color:#54685f}
.footer-icp{color:#a9c0b6}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;
  font:400 11px/1 var(--font-mono);letter-spacing:.2em;color:var(--gold-l);
  border:1px solid rgba(217,163,60,.35);background:rgba(217,163,60,.06);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:rgba(217,163,60,.16)}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;
    margin-left:0;
    background:linear-gradient(180deg,rgba(5,20,15,.99),rgba(4,16,12,.99));
    border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;
    transition:max-height .34s cubic-bezier(.3,.8,.3,1);
  }
  .site-header[data-open] .site-nav{max-height:72vh;overflow-y:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:8px var(--rail) 20px}
  .nav-link{padding:16px 4px;font-size:15px;border-bottom:1px solid var(--line-soft)}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--gold);background:rgba(217,163,60,.06)}
  .nav-item:last-child .nav-link{border-bottom:0}
  .grid--3,.grid--12{grid-template-columns:repeat(2,minmax(0,1fr))}
  .media-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:640px){
  .brand-sub{display:none}
  .header-inner{min-height:64px}
  .grid--2,.grid--3,.grid--4,.grid--12{grid-template-columns:1fr}
  .media-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .prose li{padding-left:18px}
}
@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}
}