*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg-deep:#0a0a08;
  --bg-section:#111110;
  --bg-card:#1a1916;
  --gold:#c4a265;
  --gold-light:#d4b87a;
  --gold-dark:#a68944;
  --camel:#b8956a;
  --cream:#f5efe6;
  --cream-muted:#c9c0b3;
  --text-primary:#f5efe6;
  --text-secondary:#a09a8e;
  --text-muted:#706b60;
  --border-subtle:rgba(196,162,101,.15);
  --border-gold:rgba(196,162,101,.35);
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
html{scroll-behavior:smooth;font-size:16px}
body{background:var(--bg-deep);color:var(--text-primary);font-family:var(--font-sans);line-height:1.8;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:var(--gold-dark);border-radius:3px}
::selection{background:var(--gold);color:var(--bg-deep)}

/* ── Navigation ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 clamp(2rem,5vw,5rem);height:80px;display:flex;align-items:center;justify-content:space-between;transition:background .4s,backdrop-filter .4s}
.nav.scrolled{background:rgba(10,10,8,.92);backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle)}
.nav-logo{height:44px;object-fit:contain}
.nav-links{display:flex;gap:2.5rem;align-items:center}
.nav-links a{color:var(--cream-muted);text-decoration:none;font-size:.875rem;letter-spacing:.08em;transition:color .3s;font-weight:400}
.nav-links a:hover{color:var(--gold)}
.nav-toggle{display:none;background:none;border:none;color:var(--gold);font-size:1.5rem;cursor:pointer}
.mobile-menu{display:none;position:fixed;inset:0;background:rgba(10,10,8,.97);z-index:99;flex-direction:column;align-items:center;justify-content:center;gap:2rem}
.mobile-menu.active{display:flex}
.mobile-menu a{color:var(--cream);font-family:var(--font-serif);font-size:1.5rem;text-decoration:none;letter-spacing:.1em;transition:color .3s}
.mobile-menu a:hover{color:var(--gold)}
.mobile-close{position:absolute;top:1.5rem;right:2rem;background:none;border:none;color:var(--gold);font-size:1.8rem;cursor:pointer}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;padding:.9rem 2.4rem;font-size:.875rem;letter-spacing:.12em;text-decoration:none;border-radius:0;transition:all .4s;cursor:pointer;border:none;font-family:var(--font-sans)}
.btn-primary{background:var(--gold);color:var(--bg-deep);font-weight:500}
.btn-primary:hover{background:var(--gold-light);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--gold);border:1px solid var(--gold);font-weight:400}
.btn-outline:hover{background:var(--gold);color:var(--bg-deep)}

/* ── Animations ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── Section Shared ── */
section{padding:clamp(4rem,10vw,8rem) clamp(1.5rem,5vw,5rem)}
.section-label{font-size:.7rem;letter-spacing:.35em;text-transform:uppercase;color:var(--gold);margin-bottom:.75rem}
.section-heading{font-family:var(--font-serif);font-size:clamp(1.75rem,4vw,2.75rem);color:var(--cream);line-height:1.4;margin-bottom:1.5rem}
.section-heading em{font-style:normal;color:var(--gold)}
.section-desc{color:var(--text-secondary);font-weight:300;font-size:1.05rem;max-width:600px;line-height:1.9}
.gold-line{width:40px;height:1px;background:linear-gradient(90deg,var(--gold),transparent);margin-bottom:2rem}
.gold-line-center{width:40px;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);margin:2rem auto}

/* ── Footer ── */
.footer{border-top:1px solid var(--border-subtle);padding:3rem clamp(2rem,5vw,5rem);background:var(--bg-deep)}
.footer-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-logo{height:32px;object-fit:contain}
.footer-copy{font-size:.75rem;color:var(--text-muted);letter-spacing:.05em}
.footer-links{display:flex;gap:2rem}
.footer-links a{font-size:.75rem;color:var(--text-muted);text-decoration:none;letter-spacing:.05em;transition:color .3s}
.footer-links a:hover{color:var(--gold)}

/* ── Back to Top ── */
.back-top{position:fixed;bottom:2rem;right:2rem;z-index:90;width:44px;height:44px;border-radius:50%;background:var(--gold);color:var(--bg-deep);border:none;font-size:1.2rem;cursor:pointer;opacity:0;transform:translateY(20px);transition:all .4s;display:flex;align-items:center;justify-content:center}
.back-top.visible{opacity:.8;transform:translateY(0)}
.back-top:hover{opacity:1;transform:translateY(-4px)}

/* ── AI Chat Widget ── */
.chat-bubble{position:fixed;bottom:2rem;left:2rem;z-index:95;width:52px;height:52px;border-radius:50%;background:var(--gold);color:var(--bg-deep);border:none;font-size:1.4rem;cursor:pointer;box-shadow:0 4px 20px rgba(196,162,101,.3);transition:all .3s;display:flex;align-items:center;justify-content:center}
.chat-bubble:hover{transform:scale(1.1);box-shadow:0 6px 25px rgba(196,162,101,.4)}
.chat-window{position:fixed;bottom:6rem;left:2rem;z-index:94;width:360px;max-width:calc(100vw - 2rem);height:460px;max-height:calc(100vh - 8rem);background:var(--bg-card);border:1px solid var(--border-gold);display:flex;flex-direction:column;opacity:0;transform:translateY(20px) scale(.95);pointer-events:none;transition:all .3s}
.chat-window.open{opacity:1;transform:translateY(0) scale(1);pointer-events:auto}
.chat-header{padding:.8rem 1rem;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.chat-header h4{font-size:.85rem;color:var(--cream);font-weight:500}
.chat-close{background:none;border:none;color:var(--text-muted);font-size:1.2rem;cursor:pointer}
.chat-close:hover{color:var(--gold)}
.chat-msgs{flex:1;overflow-y:auto;padding:.8rem;display:flex;flex-direction:column;gap:.5rem}
.chat-msgs::-webkit-scrollbar{width:3px}
.chat-msg{max-width:85%;padding:.6rem .8rem;font-size:.8rem;line-height:1.6;animation:fadeUp .3s}
.chat-msg.bot{background:var(--bg);color:var(--text);align-self:flex-start;border:1px solid var(--border-subtle)}
.chat-msg.user{background:rgba(196,162,101,.15);color:var(--cream);align-self:flex-end;border:1px solid var(--border-gold)}
.chat-input-wrap{display:flex;border-top:1px solid var(--border);padding:.5rem}
.chat-input-wrap input{flex:1;padding:.5rem .7rem;background:var(--bg);border:1px solid var(--border);color:var(--cream);font-size:.8rem;outline:none}
.chat-input-wrap input:focus{border-color:var(--gold)}
.chat-input-wrap button{padding:.5rem .8rem;background:var(--gold);color:var(--bg-deep);border:none;cursor:pointer;font-size:.75rem}
.chat-input-wrap button:disabled{opacity:.4}
.chat-typing{color:var(--text-muted);font-size:.75rem;padding:.4rem .8rem;align-self:flex-start}

@media(max-width:768px){
  .chat-window{left:.5rem;bottom:5rem;width:calc(100vw - 1rem)}
  .chat-bubble{left:1rem;bottom:1rem;width:46px;height:46px;font-size:1.2rem}
}

/* ── Responsive ── */
@media(max-width:1024px){
  .story-grid,.craft-grid{grid-template-columns:1fr}
  .story-image{order:-1}
  .pillars-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links{display:none}
  .nav-toggle{display:block}
  .hero-title{font-size:clamp(2rem,8vw,3rem)}
  .product-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;text-align:center}
}