:root{
  --ink:#101319;
  --ink-2:#1b2130;
  --paper:#f7f2e8;
  --paper-2:#fffdf8;
  --gold:#b88a3b;
  --gold-soft:#d8bb7c;
  --jade:#204f4b;
  --blue:#173b57;
  --muted:#77736c;
  --line:rgba(16,19,25,.12);
  --white:#fff;
  --shadow:0 28px 80px rgba(16,19,25,.10);
  --radius-xl:42px;
  --radius-lg:28px;
  --radius-md:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper-2);color:var(--ink);
  font-family:"Noto Serif SC","Songti SC","STSong","PingFang SC","Microsoft YaHei",serif;
  line-height:1.75;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1220px,calc(100% - 40px));margin:auto}
.nav{
  position:sticky;top:0;z-index:100;background:rgba(255,253,248,.88);
  backdrop-filter:blur(18px);border-bottom:1px solid var(--line)
}
.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:14px;min-width:260px}
.brand-mark{width:48px;height:48px}
.brand-text{font-family:Arial,"PingFang SC",sans-serif}
.brand-text strong{display:block;font-size:14px;letter-spacing:.08em}
.brand-text span{display:block;font-size:10px;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;gap:20px;font-family:Arial,"PingFang SC",sans-serif;font-size:13px}
.nav-links a{padding:8px 0;border-bottom:1px solid transparent}
.nav-links a:hover,.nav-links a.active{color:var(--gold);border-bottom-color:var(--gold)}
.nav-actions{display:flex;align-items:center;gap:10px}
.lang,.menu-btn{
  border:1px solid var(--line);background:white;border-radius:999px;padding:9px 14px;cursor:pointer
}
.menu-btn{display:none}
.hero{
  min-height:calc(100vh - 82px);display:grid;align-items:center;position:relative;overflow:hidden;
  background:
  radial-gradient(circle at 78% 16%,rgba(184,138,59,.16),transparent 28%),
  radial-gradient(circle at 12% 88%,rgba(32,79,75,.12),transparent 30%),
  linear-gradient(180deg,#fffdf8 0%,#efe4d2 100%);
}
.hero:after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,19,25,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,19,25,.035) 1px,transparent 1px);
  background-size:44px 44px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.3),transparent 80%);
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;padding:88px 0}
.eyebrow{font-family:Arial,sans-serif;text-transform:uppercase;letter-spacing:.22em;color:var(--gold);font-size:12px;margin-bottom:18px}
h1{font-size:clamp(52px,7vw,98px);line-height:1.03;letter-spacing:-.045em;margin:0 0 22px}
.hero-sub{font-size:clamp(18px,2.2vw,30px);line-height:1.35;margin-bottom:18px}
.lead{font-size:18px;color:#4f4a43;max-width:760px}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 22px;
  border-radius:999px;border:1px solid var(--ink);font-family:Arial,"PingFang SC",sans-serif;font-size:14px;transition:.25s
}
.btn.primary{background:var(--ink);color:white}
.btn.gold{background:var(--gold);border-color:var(--gold);color:white}
.btn:hover{transform:translateY(-2px)}
.hero-art{position:relative;min-height:620px;border-radius:var(--radius-xl);overflow:hidden}
.hero-art img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-xl);display:block}
.hero-note{
  position:absolute;left:0;bottom:34px;background:rgba(255,255,255,.76);backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.9);border-radius:24px;padding:20px 22px;max-width:330px;box-shadow:var(--shadow)
}
.hero-note strong{display:block;font-size:17px;margin-bottom:5px}
.hero-note span{color:var(--muted);font-size:13px}
.section{padding:110px 0}
.section.alt{background:var(--paper)}
.section.dark{background:var(--ink);color:white}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:34px;margin-bottom:52px}
.section-head h2{font-size:clamp(36px,5vw,66px);line-height:1.12;margin:0}
.section-head p{max-width:620px;color:var(--muted);margin:0}
.dark .section-head p{color:#b9b9b5}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  background:white;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:0 14px 38px rgba(16,19,25,.045);transition:.25s
}
.card:hover{transform:translateY(-5px);box-shadow:0 24px 56px rgba(16,19,25,.08)}
.card.dark-card{background:#171b23;border-color:rgba(255,255,255,.10);color:white}
.card h3{font-size:24px;line-height:1.35;margin:14px 0 10px}
.card p{color:var(--muted);margin:0}
.dark-card p{color:#bdbdb8}
.no{font-family:Arial,sans-serif;color:var(--gold);font-size:12px;letter-spacing:.13em}
.feature{
  display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:center;
}
.feature-art{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow);background:#e9dfcc}
.feature-copy h2{font-size:clamp(38px,5vw,64px);line-height:1.15;margin:0 0 20px}
.feature-copy p{color:var(--muted);font-size:17px}
.kicker{font-family:Arial,sans-serif;color:var(--gold);letter-spacing:.16em;font-size:12px;text-transform:uppercase}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.stat{padding-top:16px;border-top:1px solid var(--line)}
.stat strong{display:block;font-size:28px;color:var(--gold)}
.program-card{position:relative;overflow:hidden;min-height:330px}
.program-card img{position:absolute;right:-10px;bottom:-10px;width:150px;opacity:.22}
.program-card .content{position:relative;z-index:2}
.manifesto{
  display:grid;grid-template-columns:.86fr 1.14fr;gap:74px;align-items:start
}
.manifesto-intro{position:sticky;top:118px}
.manifesto-intro h2{font-size:clamp(38px,5vw,68px);line-height:1.15;margin:0 0 20px}
.manifesto-list{display:grid}
.manifesto-item{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:28px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.manifesto-item b{font-family:Arial;color:var(--gold)}
.manifesto-item h3{margin:0 0 6px;font-size:24px}
.manifesto-item p{margin:0;color:#bcbcb7}
.expo-banner{
  min-height:560px;border-radius:var(--radius-xl);overflow:hidden;position:relative;
  background:#111;color:white;display:grid;align-items:end;padding:58px;
}
.expo-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72}
.expo-banner:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,10,14,.92),rgba(7,10,14,.35))}
.expo-content{position:relative;z-index:2;max-width:800px}
.expo-content h2{font-size:clamp(44px,6vw,78px);line-height:1.05;margin:0 0 18px}
.expo-content p{color:#ddd;font-size:18px}
.timeline{display:grid}
.timeline-item{display:grid;grid-template-columns:180px 1fr;gap:26px;padding:28px 0;border-bottom:1px solid var(--line)}
.timeline-item strong{font-size:22px;color:var(--gold)}
.logo-wall{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.logo-box{height:92px;border:1px solid var(--line);border-radius:18px;display:grid;place-items:center;color:#8c877f;background:white;font-family:Arial}
.cta{background:linear-gradient(135deg,#efe3cf,#f8f3ea);border-radius:var(--radius-xl);padding:60px;text-align:center}
.cta h2{font-size:clamp(38px,5vw,66px);margin:0 0 16px}
.cta p{max-width:760px;margin:auto;color:var(--muted)}
.page-hero{
  padding:110px 0 76px;background:
  radial-gradient(circle at 80% 15%,rgba(184,138,59,.16),transparent 28%),
  linear-gradient(180deg,#fffdf8,#efe5d6);
}
.page-hero h1{font-size:clamp(48px,7vw,88px);max-width:980px}
.page-hero p{max-width:840px;font-size:19px;color:#514c45}
.page-visual{margin-top:48px;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow)}
.page-visual img{width:100%;height:auto}
.content-grid{display:grid;grid-template-columns:280px 1fr;gap:44px}
.side-nav{position:sticky;top:118px;align-self:start;border:1px solid var(--line);border-radius:22px;padding:18px;background:white}
.side-nav a{display:block;padding:11px 10px;border-bottom:1px solid var(--line);font-size:14px}
.side-nav a:last-child{border-bottom:0}
.article h2{font-size:38px;margin:0 0 18px}
.article h3{font-size:26px;margin:32px 0 10px}
.article p{color:#57534d}
.footer{padding:58px 0;background:#0c0f14;color:#ddd}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr .9fr;gap:36px}
.footer h4{color:white;margin:0 0 14px}
.footer p,.footer a{color:#979797;font-size:14px}
.footer .brand-mark{width:52px;height:52px;margin-bottom:14px}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:34px;padding-top:20px;color:#777;font-size:12px}
[data-en]{display:none}
body.en [data-zh]{display:none}
body.en [data-en]{display:block}
@media(max-width:1050px){
  .nav-links{display:none}.menu-btn{display:block}
  .hero-grid,.feature,.manifesto,.content-grid{grid-template-columns:1fr}
  .hero-art{min-height:500px}
  .manifesto-intro,.side-nav{position:static}
  .grid-4{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:720px){
  .container{width:min(100% - 24px,1220px)}
  .nav-inner{height:70px}.brand-text span{display:none}.brand{min-width:auto}
  .hero-grid{padding:58px 0}.hero-art{min-height:380px}
  .section{padding:76px 0}.section-head{display:block}.section-head p{margin-top:16px}
  .grid-2,.grid-3,.grid-4,.stats,.logo-wall{grid-template-columns:1fr}
  .hero-note{position:static;margin-top:14px}
  .expo-banner{padding:30px;min-height:520px}
  .cta{padding:34px;border-radius:28px}
  .footer-grid{grid-template-columns:1fr}
  .timeline-item{grid-template-columns:1fr;gap:6px}
}