:root{
  --bg:#ffffff;
  --fg:#0b0b0b;
  --muted:#6b6b6b;
  --line:#e7e7e7;
  --soft:#f6f6f6;
  --radius:18px;
  --shadow: 0 10px 30px rgba(0,0,0,.06);
  --max: 1200px;
  --pad: clamp(16px, 3.2vw, 36px);
  --h1: clamp(28px, 4.5vw, 54px);
  --h2: clamp(20px, 3vw, 34px);
  --h3: clamp(16px, 2.2vw, 22px);
  --p:  clamp(14px, 1.2vw, 16px);
  --ls: 0.08em;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--fg);
  background:var(--bg);
  letter-spacing:.01em;
  line-height:1.5;
}
body.drawer-open{overflow:hidden;}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}

.container{max-width:var(--max); margin:0 auto; padding:0 var(--pad);}

/* Topbar */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.78);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(231,231,231,.75);
}
/* Full-width header/footer (content still centered by .container) */
.topbar, footer { width: 100%; }
/* Header layout: hamburger left, logo centered */
.nav{
  display:grid;
  grid-template-columns: 64px 1fr 64px; /* left button, center brand, right spacer */
  align-items:center;
  height:112px; /* taller topbar for premium feel */
}
.nav .brand{
  justify-self:center;
}
.nav .burger{
  justify-self:start;
}
.nav .navSpacer{
  width:44px; height:44px; /* keep logo perfectly centered */
}

/* Make header/footer backgrounds full-bleed while keeping centered content */
.topbar > .container,
footer > .container{
  padding: 0; /* remove container horizontal padding so background spans viewport */
}
.topbar .nav{ padding: 0 var(--pad); }
footer .foot{ padding: 0 var(--pad); }

/* Let the topbar container stretch full viewport so .nav can span the entire topbar */
.topbar > .container { max-width: 100%; width: 100%; }
/* Make footer container match topbar so footer content can span full width */
footer > .container { max-width: 100%; width: 100%; }

/* Ensure footer block takes the full width of its container */
.foot { width: 100%; }
.brand{display:flex; align-items:center; gap:12px; min-width: 180px;}
.mark{
  width:34px;height:34px;border:1px solid var(--fg); border-radius:999px;
  display:grid; place-items:center;
  font-weight:700; letter-spacing:.12em; font-size:12px;
}
.brandtext{display:flex; flex-direction:column; line-height:1.1;}
.brandtext strong{font-size:28px; letter-spacing: var(--ls)}
.brandtext span{font-size:12px; color:var(--muted)}
.navlinks{display:flex; gap:18px; align-items:center;}
.navlinks a{
  font-size:12px; letter-spacing: var(--ls);
  text-transform:uppercase;
  color:rgba(11,11,11,.88);
  position:relative;
  padding:8px 2px;
  white-space:nowrap;
}
.navlinks a::after{
  content:""; position:absolute; left:0; right:0; bottom:2px;
  height:1px; background:var(--fg);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .25s ease;
  opacity:.8;
}
.navlinks a:hover::after{transform:scaleX(1)}
.navlinks a.active::after{transform:scaleX(1)} /* 当前页高亮 */

.navcta{display:flex; gap:10px; align-items:center; min-width: 200px; justify-content:flex-end;}
.btn{
  border:1px solid var(--fg);
  background:transparent;
  padding:10px 14px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:var(--ls);
  text-transform:uppercase;
  transition: all .2s ease;
  cursor:pointer;
  display:inline-flex; align-items:center; gap:8px;
  white-space:nowrap;
}
.btn:hover{background:var(--fg); color:var(--bg)}
.btn.solid{background:var(--fg); color:var(--bg)}
.btn.solid:hover{filter:brightness(.92)}
.icon{width:14px;height:14px; display:inline-block;}

/* Mobile menu */
.burger{
  display:flex;
  width:64px;height:64px;
  border:0; /* remove square border */
  border-radius:0;
  background:transparent; /* remove background */
  cursor:pointer;
  align-items:center; justify-content:center;
  gap:8px;
  flex-direction:column;
  margin-left: 1vw; /* align hamburger 1% from viewport left */
}
.burger span{width:34px; height:2.5px; background:var(--fg); display:block;}
/* Flyout Drawer (always available) */
.drawerOverlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.35);
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
  z-index:60;
}

.drawer{
  position:fixed;
  top:0; left:0;
  height:100vh;
  width:min(86vw, 360px);
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-right:1px solid rgba(231,231,231,.9);
  transform:translateX(-102%);
  transition:transform .22s ease;
  z-index:61;
  padding: 18px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.drawerHeader{
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
  padding-bottom:12px;
  border-bottom: none; /* removed top divider per request */
}

.drawerNav{
  padding-top:10px;
  display:flex;
  flex-direction:column;
}

.drawerNav a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:12px 6px;
  border-bottom:1px solid rgba(231,231,231,.6);
  font-size:12px;
  letter-spacing:var(--ls);
  text-transform:uppercase;
  color:rgba(11,11,11,.9);
}

.drawerNav a.active{
  font-weight:600;
}

.drawerActions{
  margin-top:auto;
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding-top:14px;
  border-top:1px solid rgba(231,231,231,.7);
}

.drawerClose{
  width:44px;height:44px;
  border:0;
  border-radius:12px;
  background:transparent;
  cursor:pointer;
  display:grid;
  place-items:center;
}

/* open state */
body.drawer-open .drawerOverlay{opacity:1; pointer-events:auto;}
body.drawer-open .drawer{transform:translateX(0);}

/* Hero + sections */
main{padding-bottom: 8px;}
.hero{padding: 42px 0 14px;}
.heroGrid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: clamp(18px, 3vw, 34px);
  align-items:stretch;
}
.heroCopy{
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 34px);
  overflow:hidden;
  position:relative;
  background:
    radial-gradient(800px 300px at 20% 0%, rgba(0,0,0,.05), transparent 55%),
    linear-gradient(to bottom, rgba(246,246,246,.7), transparent 45%);
}
.kicker{
  font-size:12px; letter-spacing: var(--ls);
  text-transform:uppercase; color:rgba(11,11,11,.8);
  display:flex; align-items:center; gap:10px;
}
.kicker::before{content:""; width:36px; height:1px; background:rgba(11,11,11,.55); display:inline-block;}
h1{margin: 14px 0 10px; font-size: var(--h1); line-height:1.08; font-weight: 650;}
.lead{font-size: clamp(14px, 1.6vw, 18px); color:rgba(11,11,11,.78); margin: 0 0 18px; max-width: 62ch;}
.heroActions{display:flex; gap:10px; flex-wrap:wrap; margin-top: 18px;}
.meta{
  margin-top: 22px;
  padding-top: 18px;
  border-top:1px solid rgba(231,231,231,.9);
  display:grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}
.metaItem{display:flex; flex-direction:column; gap:4px;}
.metaItem strong{font-size:12px; letter-spacing:var(--ls); text-transform:uppercase;}
.metaItem span{font-size:13px; color:var(--muted)}
.heroMedia{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  position:relative;
  background: var(--soft);
  box-shadow: var(--shadow);
  min-height: 420px;
}
.heroMedia img{width:100%; height:100%; object-fit:cover; transform: scale(1.02); transition: transform .6s ease;}
.heroMedia:hover img{transform: scale(1.06)}
.heroTag{
  position:absolute; left:16px; top:16px;
  background:rgba(255,255,255,.82);
  border:1px solid rgba(231,231,231,.9);
  border-radius:999px;
  padding:8px 12px;
  font-size:12px;
  letter-spacing:var(--ls);
  text-transform:uppercase;
  backdrop-filter: blur(10px);
}

section{padding: 56px 0;}
.sectionHead{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap: 18px;
  border-bottom:1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 22px;
}
.sectionHead h2{margin:0; font-size: var(--h2); line-height:1.15; font-weight: 600;}
.sectionHead p{margin:0; font-size: var(--p); color: var(--muted); max-width: 58ch;}

.grid3{display:grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2.2vw, 22px);}
.grid2{display:grid; grid-template-columns: 1fr 1fr; gap: clamp(14px, 2.2vw, 22px);}

.card{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background:#fff;
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover{transform: translateY(-2px); box-shadow: var(--shadow);}
.cardMedia{aspect-ratio: 4/3; background: var(--soft); overflow:hidden;}
.cardMedia img{width:100%; height:100%; object-fit:cover; transition: transform .6s ease;}
.card:hover .cardMedia img{transform: scale(1.06)}
.cardBody{padding: 16px 16px 18px;}
.label{
  font-size:12px; letter-spacing:var(--ls); text-transform:uppercase;
  color: rgba(11,11,11,.72);
  display:flex; align-items:center; gap:10px;
}
.label::before{content:""; width:18px; height:1px; background: rgba(11,11,11,.5); display:inline-block;}
.cardBody h3{margin: 10px 0 8px; font-size: var(--h3); font-weight: 600; line-height:1.2;}
.cardBody p{margin:0; font-size: 14px; color: var(--muted);}
.cardFoot{padding: 0 16px 16px; display:flex; justify-content:space-between; align-items:center; gap:12px;}
.pill{border:1px solid var(--line); border-radius:999px; padding:8px 10px; font-size:12px; color: rgba(11,11,11,.72); background: rgba(246,246,246,.6); white-space:nowrap;}
.link{
  font-size:12px; letter-spacing:var(--ls); text-transform:uppercase;
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 0;
  border-bottom:1px solid transparent;
  transition:border-color .2s ease;
  color: rgba(11,11,11,.85);
}
.link:hover{border-color: rgba(11,11,11,.6)}

/* Accordion */
.accordion{border:1px solid var(--line); border-radius: var(--radius); overflow:hidden; background:#fff;}
.accItem{border-top:1px solid var(--line)}
.accItem:first-child{border-top:0}
.accBtn{
  width:100%; padding: 16px 16px; background:#fff; border:0;
  display:flex; align-items:center; justify-content:space-between;
  cursor:pointer; text-align:left; gap:12px;
}
.accTitle{display:flex; flex-direction:column; gap:4px;}
.accTitle strong{font-size:12px; letter-spacing:var(--ls); text-transform:uppercase;}
.accTitle span{font-size:14px; color:rgba(11,11,11,.82);}
.chev{width:18px;height:18px; transition: transform .2s ease; flex: 0 0 auto; opacity:.8;}
.accPanel{max-height: 0; overflow:hidden; transition: max-height .25s ease; background: rgba(246,246,246,.45);}
.accPanelInner{padding: 0 16px 16px; color: var(--muted); font-size: 14px;}
.accItem.open .chev{transform: rotate(180deg)}
.accItem.open .accPanel{max-height: 260px}

/* Contact */
.contactGrid{display:grid; grid-template-columns: 1.1fr .9fr; gap: clamp(14px, 2.4vw, 28px); align-items:stretch;}
.map{border:1px solid var(--line); border-radius: var(--radius); overflow:hidden; background: var(--soft); min-height: 320px;}
.map iframe{width:100%; height:100%; border:0; filter: grayscale(1) contrast(1.1);}
.contactCard{
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 2.6vw, 28px);
  background:#fff;
}
.kv{display:grid; gap: 10px; margin-top: 14px; font-size: 14px; color: rgba(11,11,11,.84);}
.kv div{display:flex; justify-content:space-between; gap:14px; border-top:1px solid rgba(231,231,231,.7); padding-top:10px;}
.kv div:first-child{border-top:0;padding-top:0}
.kv b{font-weight:600}
.kv span{color: var(--muted); text-align:right}

/* Footer */
footer{border-top:1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: 15px;}
.foot{display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px; width:100%; text-align:center;}
.footLinks{display:flex; gap:14px; flex-wrap:wrap; justify-content:center;}
.footLinks a{
  font-size:13px; letter-spacing:var(--ls); text-transform:uppercase;
  color: rgba(11,11,11,.72);
  border-bottom:1px solid transparent;
  padding-bottom:6px;
}
.footLinks a:hover{border-color: rgba(11,11,11,.35)}

/* Footer left alignment to match hamburger inset */
.foot .footBrand{
  margin:0; /* centered layout */
  display:flex; align-items:center; color:var(--muted); font-size:15px; justify-content:center;
}

.fadeIn{opacity:0; transform: translateY(8px); transition: opacity .6s ease, transform .6s ease}
.fadeIn.in{opacity:1; transform: translateY(0)}
.divider{height:1px;background:var(--line); margin: 18px 0}

/* Responsive */
@media (max-width: 980px){
  .heroGrid{grid-template-columns: 1fr}
  .heroMedia{min-height: 360px}
  .meta{grid-template-columns: 1fr 1fr}
  .grid3{grid-template-columns: 1fr 1fr}
  .grid2{grid-template-columns: 1fr}
  .contactGrid{grid-template-columns: 1fr}
  .navlinks{display:none}
  .navcta{display:none}
  .burger{display:flex}
  .drawer{display:block}
  .drawer[hidden]{display:none}
}
@media (max-width: 560px){
  .meta{grid-template-columns: 1fr}
  .grid3{grid-template-columns: 1fr}
  .hero{padding-top: 28px}
  .nav{height:66px}
}

/* ===== Minimal Header / Brand ===== */
.topbar{
  background:rgba(255,255,255,.86);
  border-bottom:1px solid rgba(231,231,231,.7);
}

.nav{
  height:88px;                 /* 更薄 but taller for premium feel */
  grid-template-columns: 56px 1fr 56px;
}

.brand{
  gap:0;                       /* 更克制 */
}

.brand .mark{
  display:none;                /* 隐藏 KV 圆标：更像编辑感 */
}

.brandtext strong{
  font-size:22px;
  letter-spacing: 0.16em;      /* 更高级的字距 */
  font-weight:600;
}

.brandtext span{
  display:none;                /* 去掉副标题，更干净 */
}

/* Hamburger 也更轻一些 */
.burger{
  width:56px;height:56px;
  border:0; /* remove square border */
  background:transparent;
  border-radius:0;
  margin-left: 1vw; /* align hamburger 1% from viewport left */
  display:flex; align-items:center; justify-content:center; flex-direction:column; gap:6px;
}

.burger span{
  width:28px;
  height:2px;
  opacity:.95;
}

/* Drawer 更“书刊风” */
.drawer{
  background:rgba(255,255,255,.94);
  border-right:1px solid rgba(231,231,231,.85);
}

.drawerNav a{
  padding:14px 6px;
  letter-spacing: 0.14em;
  font-size:12px;
}

.drawerHeader{
  padding-bottom:14px;
}

.drawerClose{
  background:transparent;
  border:0;
  border-radius:14px;
}

/* ===== Minimal Footer ===== */
footer{
  padding: 22px 0 34px;
}

.footLinks a{
  letter-spacing: 0.14em;
  font-size:12px;
  color: rgba(11,11,11,.62);
}

.footLinks a:hover{
  color: rgba(11,11,11,.85);
}