:root{
  --c-navy:#0D1B2A;
  --c-gold:#C9A227;
  --c-wine:#722F37;
  --c-indigo:#3D3A6E;
  --c-paper:#F5F2EB;
  --c-ink:#1A1A1A;
  --c-muted:#6B6B6B;
  --c-line:#E0D8C8;
  --c-shadow:rgba(13,27,42,0.25);
  --f-heading:"Noto Serif CJK SC","Playfair Display",serif;
  --f-body:"Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --f-mono:"JetBrains Mono",SFMono-Regular,Consolas,monospace;
  --space-1:.5rem;
  --space-2:1rem;
  --space-3:1.5rem;
  --space-4:2.5rem;
  --space-5:4rem;
  --space-6:6rem;
  --space-7:8rem;
  --content-width:1200px;
  --radius-sm:2px;
  --radius-md:6px;
  --radius-lg:12px;
  --text-body:rgba(245,242,235,.78);
  --text-title:var(--c-paper);
  --text-muted:rgba(245,242,235,.52);
  --text-link:var(--c-gold);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background:var(--c-navy);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--f-heading);
  font-weight:700;
  line-height:1.25;
  color:var(--text-title);
}
p{color:var(--text-body);}
a{
  color:var(--text-link);
  text-decoration:none;
  transition:color .25s,border-color .25s,background .25s;
}
a:hover{color:#E0BB3F;}
img{max-width:100%;display:block;}
ul,ol{padding-left:1.25rem;}

#main-content:focus{outline:none;}
:focus-visible{
  outline:2px solid var(--c-gold);
  outline-offset:3px;
  border-radius:2px;
}

.container{
  width:100%;
  max-width:var(--content-width);
  margin-inline:auto;
  padding-inline:var(--space-2);
}
.container--narrow{max-width:760px;}
.section{padding-block:var(--space-5);}
.section--tight{padding-block:var(--space-3);}
@media (min-width:1024px){
  .section{padding-block:var(--space-6);}
}

.bg-navy{
  background:var(--c-navy);
  color:var(--c-paper);
  --text-body:rgba(245,242,235,.78);
  --text-title:var(--c-paper);
  --text-muted:rgba(245,242,235,.52);
}
.bg-indigo{
  background:var(--c-indigo);
  color:var(--c-paper);
  --text-body:rgba(245,242,235,.82);
  --text-title:var(--c-paper);
  --text-muted:rgba(245,242,235,.5);
}
.bg-wine{
  background:var(--c-wine);
  color:var(--c-paper);
  --text-body:rgba(245,242,235,.82);
  --text-title:var(--c-paper);
  --text-muted:rgba(245,242,235,.5);
}
.bg-paper,
.section--paper{
  background:var(--c-paper);
  color:var(--c-ink);
  --text-body:var(--c-ink);
  --text-title:var(--c-ink);
  --text-muted:var(--c-muted);
  --text-link:#7A5A00;
}
.bg-paper a,
.section--paper a{color:#7A5A00;}
.bg-paper a:hover,
.section--paper a:hover{color:var(--c-wine);}

.font-serif{font-family:var(--f-heading);}
.font-mono{font-family:var(--f-mono);}
.text-gold{color:var(--c-gold);}
.text-muted{color:var(--text-muted);}
.text-center{text-align:center;}
.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0 0 0 0);
  white-space:nowrap;
  border:0;
}

.section-head{
  max-width:780px;
  margin-bottom:var(--space-4);
  position:relative;
}
.section-index{
  display:block;
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.28em;
  color:var(--c-gold);
  text-transform:uppercase;
  margin-bottom:.625rem;
}
.section-title{
  font-family:var(--f-heading);
  font-size:clamp(1.625rem,3vw,2.5rem);
  line-height:1.25;
  margin-bottom:.75rem;
}
.section-desc{
  font-size:1rem;
  line-height:1.85;
}
.accent-line{
  display:block;
  width:72px;
  height:3px;
  background:linear-gradient(90deg,var(--c-gold),transparent);
  margin:var(--space-2) 0;
}
.hairline{
  border:0;
  border-top:1px solid var(--c-line);
  margin:var(--space-5) 0;
}
.diagonal-stripe{
  background-image:repeating-linear-gradient(
    45deg,
    rgba(201,162,39,.05) 0,
    rgba(201,162,39,.05) 1px,
    transparent 1px,
    transparent 12px
  );
}

.meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.75rem;
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  color:var(--text-muted);
}
.meta-dot{
  display:inline-block;
  width:4px;
  height:4px;
  border-radius:50%;
  background:var(--c-gold);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.625rem;
  padding:.75rem 1.625rem;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-family:var(--f-body);
  font-size:.875rem;
  font-weight:600;
  letter-spacing:.12em;
  line-height:1.4;
  cursor:pointer;
  text-decoration:none;
  transition:background .25s,color .25s,transform .25s,box-shadow .25s,border-color .25s;
}
.btn-gold{
  background:var(--c-gold);
  color:var(--c-navy);
}
.btn-gold:hover{
  background:#DCB53B;
  color:var(--c-navy);
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(201,162,39,.3);
}
.btn-outline{
  border-color:rgba(201,162,39,.55);
  color:var(--c-gold);
  background:transparent;
}
.btn-outline:hover{
  background:rgba(201,162,39,.12);
  border-color:var(--c-gold);
  color:var(--c-gold);
}
.btn-wine{
  background:var(--c-wine);
  color:var(--c-paper);
}
.btn-wine:hover{
  background:#843B45;
  color:var(--c-paper);
}
.btn-dark{
  background:var(--c-ink);
  color:var(--c-paper);
}
.btn-dark:hover{
  background:#2c2c2c;
  color:var(--c-paper);
}
.btn-sm{
  padding:.5rem 1rem;
  font-size:.75rem;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:.375rem;
  padding:.25rem .75rem;
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  line-height:1.6;
  border-radius:var(--radius-sm);
  text-transform:uppercase;
}
.tag--gold{
  background:rgba(201,162,39,.12);
  color:var(--c-gold);
  border:1px solid rgba(201,162,39,.4);
}
.tag--wine{
  background:rgba(114,47,55,.18);
  color:#C98A93;
  border:1px solid rgba(114,47,55,.5);
}
.tag--line{
  background:transparent;
  color:currentColor;
  border:1px solid currentColor;
}

.breadcrumb{
  font-size:.8125rem;
  margin-bottom:var(--space-3);
}
.breadcrumb-list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem;
  list-style:none;
  padding:0;
}
.breadcrumb-item{
  display:flex;
  align-items:center;
  gap:.5rem;
}
.breadcrumb-item+.breadcrumb-item::before{
  content:"/";
  color:var(--text-muted);
  font-family:var(--f-mono);
}
.breadcrumb-link{color:var(--c-gold);}
.breadcrumb-link:hover{color:#E0BB3F;}
.breadcrumb-current{
  color:var(--text-body);
  font-weight:600;
}

.grid-2{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-4);
}
.grid-3{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-4);
}
@media (min-width:768px){
  .grid-2{grid-template-columns:1fr 1fr;}
  .grid-3{grid-template-columns:1fr 1fr;}
}
@media (min-width:1024px){
  .grid-3{grid-template-columns:repeat(3,1fr);}
}

.index-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-4);
}
.index-grid--3{
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
}
.index-card{
  position:relative;
  background:linear-gradient(145deg,rgba(61,58,110,.25),rgba(13,27,42,.92)),var(--c-navy);
  border:1px solid rgba(201,162,39,.22);
  border-radius:var(--radius-md);
  padding:var(--space-4);
  overflow:hidden;
  transition:transform .3s,border-color .3s,box-shadow .3s;
}
.index-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:3px;height:100%;
  background:linear-gradient(180deg,var(--c-gold),var(--c-wine));
  opacity:.7;
}
.index-card:hover{
  transform:translateY(-4px);
  border-color:rgba(201,162,39,.55);
  box-shadow:0 16px 40px rgba(0,0,0,.35);
}
.index-card__serial{
  font-family:var(--f-mono);
  font-size:.75rem;
  letter-spacing:.2em;
  color:var(--c-gold);
  text-transform:uppercase;
}
.index-card__title{
  font-family:var(--f-heading);
  font-size:1.25rem;
  color:var(--c-paper);
  margin:.75rem 0 .5rem;
}
.index-card__body{
  font-size:.875rem;
  line-height:1.75;
  color:rgba(245,242,235,.68);
}

.legend-group{
  display:flex;
  flex-wrap:wrap;
  gap:.75rem 1.5rem;
  padding:.75rem 0;
}
.legend-item{
  display:inline-flex;
  align-items:center;
  gap:.625rem;
  font-size:.875rem;
  color:var(--text-body);
}
.legend-key{
  flex:none;
  width:10px;
  height:10px;
  border:1px solid var(--c-gold);
  background:var(--legend-bg,transparent);
  transform:rotate(45deg);
}
.legend-label{line-height:1.4;}

.route-line{
  list-style:none;
  padding-left:2.5rem;
  position:relative;
}
.route-line::before{
  content:"";
  position:absolute;
  left:14px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--c-gold),var(--c-indigo));
  opacity:.45;
}
.route-item{
  position:relative;
  padding-bottom:var(--space-4);
}
.route-item:last-child{padding-bottom:0;}
.route-item::before{
  content:"";
  position:absolute;
  left:-2.3rem;
  top:.4rem;
  width:8px;
  height:8px;
  border:2px solid var(--c-gold);
  background:var(--c-navy);
  transform:rotate(45deg);
}

.chamfer-panel{
  position:relative;
  padding:var(--space-5);
  background:var(--c-paper);
  color:var(--c-ink);
  clip-path:polygon(0 28px,28px 0,100% 0,100% calc(100% - 28px),calc(100% - 28px) 100%,0 100%);
  --text-body:var(--c-ink);
  --text-title:var(--c-ink);
  --text-muted:var(--c-muted);
  --text-link:#7A5A00;
}
.chamfer-panel--dark{
  background:var(--c-indigo);
  color:var(--c-paper);
  --text-body:rgba(245,242,235,.85);
  --text-title:var(--c-paper);
  --text-muted:rgba(245,242,235,.55);
  --text-link:var(--c-gold);
}

.media-frame{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(135deg,rgba(201,162,39,.08),rgba(13,27,42,.4)),
    var(--c-navy);
  border:1px solid rgba(201,162,39,.25);
  border-radius:var(--radius-md);
}
.media-frame::before{
  content:"";
  display:block;
  padding-top:56.25%;
}
.media-frame--tall::before{padding-top:130%;}
.media-frame--square::before{padding-top:100%;}
.media-frame::after{
  content:"";
  position:absolute;
  top:0;left:0;
  width:32px;height:32px;
  border-top:2px solid var(--c-gold);
  border-left:2px solid var(--c-gold);
  z-index:2;
  pointer-events:none;
}
.media-frame img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__caption{
  margin-top:.5rem;
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--text-muted);
}

.site-header{
  position:relative;
  z-index:1000;
  background:
    linear-gradient(115deg,rgba(61,58,110,.28) 0%,transparent 45%),
    repeating-linear-gradient(135deg,transparent 0,transparent 79px,rgba(201,162,39,.03) 79px,rgba(201,162,39,.03) 80px),
    var(--c-navy);
  color:var(--c-paper);
  border-bottom:1px solid rgba(201,162,39,.22);
}
.site-header::before{
  content:"";
  display:block;
  height:3px;
  background:linear-gradient(90deg,var(--c-gold) 0%,var(--c-gold) 34%,var(--c-wine) 34%,var(--c-wine) 40%,transparent 40%);
}

.skip-link{
  position:absolute;
  left:0;
  top:-100%;
  z-index:3000;
  padding:.75rem 1.25rem;
  background:var(--c-gold);
  color:var(--c-navy);
  font-weight:700;
  white-space:nowrap;
  transition:top .2s;
}
.skip-link:focus{
  top:0;
}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  width:0;
  height:3px;
  z-index:2000;
  background:linear-gradient(90deg,var(--c-gold),#E3C66B);
  pointer-events:none;
}

.masthead{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:var(--space-2);
  max-width:var(--content-width);
  margin:0 auto;
  padding:var(--space-3) var(--space-2) var(--space-2);
}
@media (min-width:768px){
  .masthead{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:var(--space-3);
    padding:var(--space-4) var(--space-3) var(--space-2);
  }
}
@media (min-width:1024px){
  .masthead{
    gap:var(--space-5);
    padding-top:var(--space-5);
  }
}

.masthead-meta{
  display:none;
  align-items:center;
  gap:.625rem;
  font-family:var(--f-mono);
  font-size:.625rem;
  letter-spacing:.14em;
  color:rgba(245,242,235,.5);
  white-space:nowrap;
}
@media (min-width:768px){
  .masthead-meta{display:flex;}
}
.meta-rule{
  display:inline-block;
  width:2rem;
  height:1px;
  background:var(--c-gold);
  opacity:.5;
}
.meta-coord{letter-spacing:.08em;}

.masthead-brand{
  display:flex;
  flex-direction:column;
  align-items:center;
}
.brand-link{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-decoration:none;
}
.masthead-kicker{
  font-family:var(--f-mono);
  font-size:.625rem;
  letter-spacing:.32em;
  color:var(--c-gold);
  text-transform:uppercase;
  margin-bottom:.25rem;
}
.masthead-title{
  font-family:var(--f-heading);
  font-size:clamp(1.625rem,4vw,2.25rem);
  font-weight:700;
  letter-spacing:.08em;
  color:var(--c-paper);
  line-height:1.25;
  white-space:nowrap;
  transition:color .3s;
}
.brand-link:hover .masthead-title{
  color:var(--c-gold);
}
.masthead-rule{
  display:block;
  width:96px;
  height:2px;
  margin-top:.375rem;
  background:linear-gradient(90deg,var(--c-gold),transparent);
}

.masthead-update{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:.125rem;
  padding:.5rem .875rem;
  border:1px solid rgba(201,162,39,.3);
  background:rgba(13,27,42,.5);
  min-width:148px;
  text-align:center;
}
.update-label{
  font-family:var(--f-mono);
  font-size:.625rem;
  letter-spacing:.22em;
  color:rgba(245,242,235,.6);
  text-transform:uppercase;
}
.update-time{
  font-family:var(--f-mono);
  font-size:1.375rem;
  font-weight:600;
  color:var(--c-gold);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.update-hint{
  font-size:.6875rem;
  color:rgba(245,242,235,.45);
}

.main-nav{
  max-height:0;
  overflow:hidden;
  transition:max-height .45s cubic-bezier(.4,0,.2,1);
  background:rgba(10,20,31,.95);
  border-top:1px solid rgba(201,162,39,.14);
}
.main-nav[data-open]{
  max-height:560px;
}
@media (min-width:768px){
  .main-nav{
    max-height:none;
    overflow:visible;
    background:rgba(13,27,42,.8);
    border-top:1px solid rgba(201,162,39,.16);
  }
}

.nav-list{
  display:flex;
  flex-direction:column;
  list-style:none;
  counter-reset:nav;
  max-width:var(--content-width);
  margin:0 auto;
  padding:0 var(--space-2);
}
@media (min-width:768px){
  .nav-list{
    flex-direction:row;
    justify-content:center;
    gap:0;
    padding:0 var(--space-3);
  }
}
.nav-item{
  counter-increment:nav;
  flex:0 0 auto;
}
.nav-link{
  display:flex;
  align-items:center;
  gap:.5rem;
  padding:1rem .5rem;
  font-size:.875rem;
  font-weight:600;
  letter-spacing:.12em;
  text-decoration:none;
  color:rgba(245,242,235,.82);
  border-bottom:2px solid transparent;
  transition:color .3s,border-color .3s,background .3s;
}
.nav-link::before{
  content:"/" counter(nav,decimal-leading-zero);
  font-family:var(--f-mono);
  font-size:.625rem;
  letter-spacing:.08em;
  color:var(--c-gold);
  opacity:.65;
}
.nav-link:hover{
  color:var(--c-gold);
  background:rgba(201,162,39,.06);
}
.nav-link[aria-current="page"]{
  color:var(--c-gold);
  border-bottom-color:var(--c-gold);
  background:rgba(201,162,39,.06);
}
@media (max-width:767px){
  .nav-link{
    padding:1rem 1.25rem;
    border-left:2px solid transparent;
    border-bottom:none;
  }
  .nav-link[aria-current="page"]{
    border-left-color:var(--c-gold);
    border-bottom-color:transparent;
  }
}

.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.625rem;
  margin:0 auto var(--space-2);
  padding:.5rem .875rem;
  background:transparent;
  border:1px solid rgba(201,162,39,.5);
  border-radius:var(--radius-sm);
  color:var(--c-paper);
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  cursor:pointer;
  transition:background .25s,border-color .25s;
}
.nav-toggle:hover{
  background:rgba(201,162,39,.12);
}
@media (min-width:768px){
  .nav-toggle{display:none;}
}
.nav-toggle-icon{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.nav-toggle-line{
  display:block;
  width:18px;
  height:1px;
  background:var(--c-paper);
  transition:transform .3s,opacity .3s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1){
  transform:translateY(5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2){
  opacity:0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3){
  transform:translateY(-5px) rotate(-45deg);
}

.site-footer{
  position:relative;
  background:
    linear-gradient(115deg,rgba(13,27,42,.85),rgba(61,58,110,.25)),
    #0A141F;
  color:rgba(245,242,235,.7);
  border-top:2px solid var(--c-gold);
}
.site-footer::before{
  content:"";
  display:block;
  height:2px;
  background:linear-gradient(90deg,var(--c-gold) 0%,var(--c-wine) 30%,var(--c-indigo) 70%,transparent 100%);
}

.footer-container{
  display:grid;
  grid-template-columns:1fr;
  gap:var(--space-4);
  max-width:var(--content-width);
  margin:0 auto;
  padding:var(--space-5) var(--space-2) var(--space-4);
}
@media (min-width:768px){
  .footer-container{
    grid-template-columns:repeat(2,1fr);
  }
  .footer-brand{grid-column:1 / -1;}
}
@media (min-width:1024px){
  .footer-container{
    grid-template-columns:1.2fr .8fr 1.1fr;
    gap:var(--space-5);
    padding:var(--space-6) var(--space-3) var(--space-5);
  }
  .footer-brand{grid-column:auto;}
}

.footer-heading{
  font-family:var(--f-heading);
  font-size:1.125rem;
  color:var(--c-gold);
  margin-bottom:var(--space-2);
  letter-spacing:.06em;
}

.footer-brand-head{
  display:flex;
  align-items:baseline;
  gap:.75rem;
  margin-bottom:var(--space-2);
}
.footer-brand-mark{
  font-family:var(--f-mono);
  font-size:.75rem;
  letter-spacing:.18em;
  color:var(--c-gold);
}
.footer-brand-name{
  font-family:var(--f-heading);
  font-size:1.375rem;
  font-weight:700;
  color:var(--c-paper);
  letter-spacing:.05em;
}
.footer-brand-desc{
  font-size:.875rem;
  line-height:1.85;
  color:rgba(245,242,235,.62);
  max-width:42ch;
}
.footer-icp{
  margin-top:var(--space-2);
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.1em;
  color:var(--c-gold);
  opacity:.85;
}

.footer-list{
  list-style:none;
  padding:0;
  display:grid;
  gap:.625rem;
}
.footer-list a{
  color:rgba(245,242,235,.72);
  font-size:.875rem;
  text-decoration:none;
  transition:color .25s,padding-left .25s;
}
.footer-list a:hover{
  color:var(--c-gold);
  padding-left:.5rem;
}

.footer-contact-list{
  list-style:none;
  padding:0;
  display:grid;
  gap:.625rem;
}
.contact-item{
  display:grid;
  grid-template-columns:4.5em 1fr;
  gap:.125rem .75rem;
  line-height:1.6;
}
.contact-type{
  font-family:var(--f-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--c-gold);
  padding-top:.25rem;
}
.contact-value{
  font-size:.875rem;
  color:rgba(245,242,235,.7);
}

.footer-bottom{
  border-top:1px solid rgba(201,162,39,.2);
  padding:var(--space-3) var(--space-2);
}
.footer-bottom-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:var(--space-2) var(--space-3);
  max-width:var(--content-width);
  margin:0 auto;
}
.copyright{
  font-size:.8125rem;
  color:rgba(245,242,235,.5);
}
.footer-legal{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:.75rem;
}
.footer-legal a{
  font-size:.8125rem;
  color:rgba(245,242,235,.6);
  text-decoration:none;
  transition:color .25s;
}
.footer-legal a:hover{
  color:var(--c-gold);
}
.footer-sep{
  color:rgba(201,162,39,.5);
  font-family:var(--f-mono);
}

[data-reveal]{
  opacity:0;
  transform:translateY(24px);
  transition:opacity .65s ease,transform .65s ease;
}
[data-reveal].is-revealed{
  opacity:1;
  transform:none;
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{
    opacity:1;
    transform:none;
    transition:none;
  }
}