:root{
  --navy-900:#0F2036;
  --navy-700:#1B3A5C;
  --navy-500:#2F5E8C;
  --navy-300:#6B92B8;
  --navy-100:#DCE8F2;
  --amber:#B98A2F;
  --amber-dark:#8A6420;
  --warm-bg:#FAF8F4;
  --white:#FFFFFF;
  --ink:#1C1F24;
  --ink-soft:#5D6168;
  --ink-mute:#8A8D93;
  --line:#E5E1DA;
  --gold-gradient:linear-gradient(135deg,#B98A2F,#8A6420);
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:26px;
  --shadow-sm:0 2px 12px rgba(11,24,45,.08);
  --shadow-md:0 8px 30px rgba(11,24,45,.12);
  --font-serif:'Playfair Display',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --ease:cubic-bezier(.25,.1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);color:var(--ink);background:var(--warm-bg);line-height:1.7;-webkit-font-smoothing:antialiased}
.container{max-width:1240px;margin:0 auto;padding:0 32px}
img{max-width:100%;display:block}
::selection{background:var(--navy-500);color:#fff}

/* Navigation */
.nav{position:sticky;top:0;z-index:100;background:rgba(15,32,54,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 32px;max-width:1240px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}
.brand .logo{height:40px;width:auto;display:block}
.nav-links{display:flex;gap:38px;list-style:none}
.nav-links a{color:rgba(255,255,255,.85);text-decoration:none;font-size:14.5px;position:relative;padding:6px 0;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:#fff}
.nav-links a.active::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:2px;background:var(--amber)}
.nav-links a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--amber);transition:width .3s var(--ease)}
.nav-links a:hover::after{width:100%}
.nav-links a.active::after{width:100%}
.nav-cta{padding:10px 22px;background:transparent;border:1px solid rgba(185,138,47,.5);border-radius:6px;color:#fff;font-size:13.5px;text-decoration:none;transition:.25s}
.nav-cta:hover{background:var(--amber);border-color:var(--amber);color:#fff}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:20px;cursor:pointer}
@media(max-width:900px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
}

/* Inner-page hero (subpage banner) */
.page-hero{background:linear-gradient(150deg,#0F2036 0%,#1B3A5C 55%,#2F5E8C 100%);padding:88px 0 64px;color:#fff;position:relative;overflow:hidden}
.page-hero .orb{position:absolute;width:560px;height:560px;right:-140px;top:-120px;border-radius:50%;background:radial-gradient(circle,rgba(107,146,184,.5),transparent 65%)}
.page-hero .eyebrow{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(185,138,47,.6);color:var(--amber);padding:7px 16px;border-radius:22px;font-size:12.5px;letter-spacing:1.5px}
.page-hero h1{font-family:var(--font-serif);font-size:clamp(30px,4.5vw,52px);font-weight:600;line-height:1.15;margin:20px 0 10px}
.page-hero .en-sub{font-family:var(--font-serif);font-style:italic;font-size:14px;color:rgba(185,138,47,.9);margin-top:14px}
.page-hero .desc{font-size:16px;color:rgba(255,255,255,.78);line-height:1.9;max-width:680px;margin-top:18px}

/* Buttons */
.btn-primary{display:inline-flex;align-items:center;gap:9px;background:var(--gold-gradient);color:#fff;padding:14px 28px;border-radius:10px;font-size:15px;font-weight:500;text-decoration:none;box-shadow:0 8px 24px rgba(10,25,40,.18);transition:.3s var(--ease)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(10,25,40,.3)}
.btn-ghost{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(255,255,255,.5);color:#fff;padding:13px 26px;border-radius:10px;font-size:15px;background:transparent;text-decoration:none;transition:.3s}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* Section head */
.sec-head{text-align:center;max-width:760px;margin:0 auto}
.sec-head .tag{display:inline-block;font-size:12px;color:var(--navy-500);letter-spacing:3px;text-transform:uppercase;border-bottom:1px solid var(--line);padding-bottom:4px}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:500;color:var(--ink);margin:16px 0 6px}
.sec-head .sub{font-size:15px;color:var(--ink-mute);line-height:1.8}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* CTA banner */
.cta-banner{padding:96px 0;background:linear-gradient(120deg,#0F2036,#1B3A5C);color:#fff;text-align:center}
.cta-banner .container{position:relative;overflow:hidden}
.cta-banner h2{font-family:var(--font-serif);font-size:clamp(26px,3.5vw,44px);font-weight:500}
.cta-banner .zh{font-size:18px;color:rgba(255,255,255,.85);margin-top:12px}
.cta-banner .cta-row{display:flex;gap:18px;justify-content:center;margin-top:34px;align-items:center}

/* Footer */
footer{background:var(--navy-900);color:#fff;padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:44px;padding:0 32px;max-width:1240px;margin:0 auto}
.footer-col h6{font-size:13px;letter-spacing:2px;color:rgba(255,255,255,.6);margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.8);font-size:14px;margin-bottom:8px;text-decoration:none;transition:color .2s}
.footer-col a:hover{color:#fff}
.contact-item{display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.8);font-size:14px;margin-bottom:10px}
.contact-item i{width:18px;color:var(--amber)}
.copyright{padding:24px 32px;color:rgba(255,255,255,.45);font-size:12.5px;text-align:center}