/* ================================================================
   卮己酒庄 — 共享设计系统 v1.0
   ================================================================ */

/* --- CSS Custom Properties --- */
:root {
  --gold: #c9a96e;
  --gold-dark: #a8884e;
  --gold-light: rgba(201,169,110,.12);
  --bg: #0a060e;
  --bg-card: #0d0914;
  --bg-panel: #0f0b16;
  --text: #e8d5c4;
  --text-dim: #b8a898;
  --text-muted: #8a7a6a;
  --text-faint: #6a5a4a;
  --text-dark: #5c4a3a;
  --border: rgba(201,169,110,.08);
  --border-light: rgba(201,169,110,.15);
  --font-serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
               'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --nav-h: 56px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 50px;
}

/* --- Reset & Base --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  width:100%;overflow-x:hidden;overflow-wrap:break-word;
  -webkit-text-size-adjust:100%;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.5;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--text-dark);border-radius:3px}

/* --- Navigation --- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(1rem,4vw,2rem);
  background:rgba(10,6,14,.88);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.nav-brand{display:flex;align-items:center;gap:.4rem;z-index:101}
.nav-brand span{
  font-family:var(--font-serif);
  font-size:1rem;color:var(--gold);letter-spacing:.15em;
}
.nav-links{display:flex;gap:clamp(.8rem,2vw,1.5rem);align-items:center}
.nav-links a{
  color:var(--text-muted);text-decoration:none;
  font-size:.82rem;transition:color .2s;white-space:nowrap;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold)}
.hamburger{
  display:none;flex-direction:column;gap:5px;
  cursor:pointer;z-index:101;background:none;border:none;padding:4px;
}
.hamburger span{
  display:block;width:22px;height:2px;
  background:var(--text-muted);border-radius:2px;transition:all .3s;
}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.5);
  z-index:99;opacity:0;pointer-events:none;transition:opacity .35s;
}
.nav-overlay.show{opacity:1;pointer-events:auto}
@media(max-width:767px){
  .hamburger{display:flex}
  .nav-links{
    position:fixed;top:0;right:-100%;width:70%;max-width:280px;height:100dvh;
    background:rgba(14,10,20,.97);backdrop-filter:blur(16px);
    flex-direction:column;padding:5rem 2rem 2rem;gap:1rem;align-items:stretch;
    transition:right .35s cubic-bezier(.4,0,.2,1);
    border-left:1px solid var(--border);
  }
  .nav-links.open{right:0}
  .nav-links a{font-size:1rem;padding:.6rem 0;border-bottom:1px solid var(--border)}
}

/* --- Section Layout --- */
section{position:relative}
.section-inner{max-width:1100px;margin:0 auto;padding:6rem 2rem;text-align:center}
.section-label{
  font-family:var(--font-serif);font-size:.75rem;
  letter-spacing:.25em;text-transform:uppercase;
  color:var(--gold);margin-bottom:.5rem;
}
.section-title{
  font-family:var(--font-serif);font-size:2.2rem;
  font-weight:300;color:#f0e3d0;margin-bottom:1rem;line-height:1.3;
}
.section-sub{
  color:var(--text-muted);font-size:1rem;line-height:1.7;
  max-width:560px;margin-bottom:3rem;
}
.section-inner.cta{padding-bottom:2rem;padding-top:0}

/* --- Hero Section (Homepage) --- */
.hero{
  min-height:100vh;min-height:100dvh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:2rem;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse at 80% 20%,rgba(100,50,120,.12) 0%,transparent 60%),
    radial-gradient(ellipse at 20% 80%,rgba(180,140,80,.06) 0%,transparent 50%),
    var(--bg);
}
.hero-grain{
  position:absolute;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity:.035;pointer-events:none;
}
.hero-content{position:relative;z-index:1;padding-top:var(--nav-h)}
.hero-emblem{margin-bottom:1.5rem;display:block;opacity:.8;margin:0 auto 1.5rem}
.hero h1{
  font-family:var(--font-serif);font-weight:300;font-size:3.5rem;
  color:#f0e3d0;letter-spacing:.08em;line-height:1.2;margin-bottom:1.5rem;
}
.hero-slogan{
  font-family:var(--font-serif);font-size:1.3rem;font-weight:300;
  font-style:italic;color:var(--text-dim);margin-bottom:2.5rem;line-height:1.6;
}
.hero-slogan .hl{color:var(--gold);font-style:normal}
.hero-btn{
  display:inline-block;padding:.9rem 2.5rem;
  border:1px solid rgba(201,169,110,.4);border-radius:var(--radius-pill);
  color:var(--gold);text-decoration:none;font-size:.9rem;
  letter-spacing:.1em;transition:all .4s ease;background:transparent;
}
.hero-btn.primary{
  background:linear-gradient(135deg,rgba(201,169,110,.18),rgba(201,169,110,.08));
  border-color:rgba(201,169,110,.5);color:#f0e3d0;
}
.hero-btn.primary:hover{
  background:linear-gradient(135deg,rgba(201,169,110,.28),rgba(201,169,110,.14));
  border-color:var(--gold);transform:translateY(-2px);
  box-shadow:0 8px 30px rgba(201,169,110,.2);
}
.hero-btn-second{
  display:inline-block;padding:.9rem 2.5rem;
  border:1px solid rgba(232,213,196,.15);border-radius:var(--radius-pill);
  color:var(--text-muted);text-decoration:none;font-size:.82rem;
  letter-spacing:.1em;transition:all .4s ease;background:transparent;
}
.hero-btn-second:hover{
  border-color:rgba(232,213,196,.3);color:var(--text);
  transform:translateY(-2px);
}
.hero-btn:hover{
  background:rgba(201,169,110,.1);border-color:var(--gold);
  transform:translateY(-2px);box-shadow:0 8px 30px rgba(201,169,110,.15);
}
.hero-scroll{
  position:absolute;bottom:2.5rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  color:var(--text-dark);font-size:.7rem;letter-spacing:.15em;
  animation:float 2.5s ease-in-out infinite;z-index:2;
}
.hero-scroll span{display:block;width:1px;height:30px;background:var(--text-dark)}

/* --- Cards Grid --- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:1rem}
.pain-card{
  background:linear-gradient(135deg,rgba(120,80,140,.06),rgba(180,140,80,.04));
  border:1px solid var(--border);border-radius:var(--radius-md);
  padding:2rem;text-align:center;transition:all .4s ease;
}
.pain-card:hover{
  border-color:var(--border-light);transform:translateY(-3px);
  box-shadow:0 8px 30px rgba(0,0,0,.3);
}
.pain-card .icon{font-size:2rem;margin-bottom:1rem;display:block}
.pain-card h3{
  font-family:var(--font-serif);font-size:1.2rem;
  font-weight:400;color:#e0d0b8;margin-bottom:.6rem;
}
.pain-card p{font-size:.88rem;color:var(--text-muted);line-height:1.6}

/* --- Process Flow --- */
.process-flow{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;position:relative;margin-top:2rem}
@media(min-width:769px){
  .process-flow::after{
    content:'';position:absolute;top:30%;left:16.7%;right:16.7%;height:1px;
    background:linear-gradient(90deg,transparent,rgba(201,169,110,.2),rgba(201,169,110,.2),transparent);
    pointer-events:none;
  }
}
.process-step{text-align:center;padding:2rem 1.5rem;position:relative}
.process-step .num{
  font-family:var(--font-serif);font-size:2.5rem;
  color:rgba(201,169,110,.15);font-weight:600;display:block;margin-bottom:.5rem;
}
.process-step .icon{font-size:2rem;margin-bottom:1rem;display:block}
.process-step h3{font-family:var(--font-serif);font-size:1.1rem;font-weight:400;color:var(--gold);margin-bottom:.5rem}
.process-step p{font-size:.85rem;color:var(--text-muted);line-height:1.6;max-width:250px;margin:0 auto}

/* --- Terroir Cards --- */
.terroir-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.terroir-card{
  background:linear-gradient(135deg,rgba(120,80,140,.04),rgba(180,140,80,.03));
  border:1px solid rgba(201,169,110,.06);border-radius:var(--radius-md);
  padding:1.8rem;transition:all .4s ease;
}
.terroir-card:hover{border-color:var(--border-light);transform:translateY(-2px)}
.terroir-card .region-icon{font-size:1.5rem;margin-bottom:.5rem;display:block}
.terroir-card h3{font-family:var(--font-serif);font-size:1.15rem;font-weight:400;color:var(--gold);margin-bottom:.2rem}
.terroir-card .region-en{font-size:.75rem;color:var(--text-faint);letter-spacing:.05em;margin-bottom:.6rem}
.terroir-card .region-desc{font-size:.85rem;color:var(--text-muted);line-height:1.6}
.terroir-card .region-tags{margin-top:.6rem;display:flex;gap:.4rem;flex-wrap:wrap}
.terroir-card .region-tags span{font-size:.7rem;background:var(--gold-light);color:#a09078;padding:.15rem .6rem;border-radius:20px}

/* --- Omni Cards --- */
.omni-content{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin-top:1rem}
.omni-card{
  background:linear-gradient(135deg,rgba(120,80,140,.06),rgba(180,140,80,.04));
  border:1px solid var(--border);border-radius:var(--radius-md);
  padding:2rem;transition:all .4s ease;
  display:block;color:inherit;text-decoration:none;
}
.omni-card:hover{border-color:var(--border-light);transform:translateY(-3px)}
.omni-card .omni-icon{font-size:1.8rem;margin-bottom:.8rem;display:block}
.omni-card h3{font-family:var(--font-serif);font-size:1.2rem;font-weight:400;color:#e0d0b8;margin-bottom:.5rem}
.omni-card p{font-size:.88rem;color:var(--text-muted);line-height:1.6}
.omni-card .omni-bridge{margin-top:1rem;font-size:.8rem;font-style:italic;color:var(--gold)}

/* --- CTA --- */
#cta{text-align:center;padding:5rem 2rem}
.cta-wechat{display:flex;align-items:center;justify-content:center;gap:2rem;margin-bottom:2.5rem;flex-wrap:wrap}
.cta-qr{width:120px;height:120px;border-radius:12px;border:1px solid var(--border-light)}
.cta-wechat-info{text-align:left;max-width:260px}
.cta-wechat-id{font-family:var(--font-serif);color:var(--gold);font-size:1rem;margin-bottom:.3rem}
.cta-wechat-desc{font-size:.82rem;color:var(--text-muted);line-height:1.5;margin-bottom:.8rem}
.cta-links{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-top:1.5rem}
.cta-link{
  padding:.8rem 2rem;border-radius:var(--radius-pill);
  font-size:.88rem;text-decoration:none;transition:all .3s ease;
}
.cta-link.primary{background:var(--gold-light);border:1px solid rgba(201,169,110,.3);color:var(--gold)}
.cta-link.primary:hover{background:rgba(201,169,110,.2);border-color:var(--gold);transform:translateY(-2px)}
.cta-link.secondary{border:1px solid rgba(232,213,196,.15);color:var(--text-muted)}
.cta-link.secondary:hover{border-color:rgba(232,213,196,.3);color:var(--text)}

/* --- Product Listing --- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:2rem;max-width:1100px;margin-left:auto;margin-right:auto;padding:0 2rem}
.prod-card{
  background:linear-gradient(135deg,rgba(120,80,140,.06),rgba(180,140,80,.04));
  border:1px solid var(--border);border-radius:var(--radius-md);
  padding:1.5rem;transition:all .4s ease;
  display:flex;flex-direction:column;text-decoration:none;color:inherit;
}
.prod-card:hover{border-color:var(--border-light);transform:translateY(-3px);box-shadow:0 8px 30px rgba(0,0,0,.3)}
.prod-card .badge{
  display:inline-block;font-size:.65rem;padding:.2rem .6rem;
  border-radius:20px;margin-bottom:.6rem;font-weight:500;width:fit-content;
}
.prod-card .badge.red{background:rgba(180,60,60,.15);color:#d48a7a}
.prod-card .badge.white{background:rgba(180,160,80,.15);color:#c9b87a}
.prod-card svg{width:100%;max-height:260px;margin-bottom:.8rem}
.prod-card h3{font-family:var(--font-serif);font-size:1.1rem;font-weight:400;color:#e0d0b8;margin-bottom:.15rem}
.prod-card .name-en{font-family:var(--font-serif);font-size:.85rem;color:var(--text-faint);font-style:italic;margin-bottom:.3rem}
.prod-card .highlight{font-size:.82rem;color:var(--gold);margin-bottom:.5rem;flex:1}
.prod-card .price{font-family:var(--font-serif);font-size:1.2rem;color:var(--gold)}
.prod-card .price-na{font-size:.85rem;color:var(--text-muted)}
.prod-page-hero{padding:calc(var(--nav-h) + 2rem) clamp(1rem,4vw,2rem) 2rem;max-width:1100px;margin:0 auto}
.prod-page-hero .back-link{display:inline-flex;align-items:center;gap:.4rem;color:var(--text-faint);text-decoration:none;font-size:.8rem;margin-bottom:1.5rem;transition:color .2s}
.prod-page-hero .back-link:hover{color:var(--gold)}

/* --- Product Detail --- */
.detail-grid{display:grid;grid-template-columns:280px 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start;max-width:1000px;margin:0 auto}
@media(max-width:767px){.detail-grid{grid-template-columns:1fr}}
.bottle-wrap{position:sticky;top:calc(var(--nav-h) + 2rem)}
@media(max-width:767px){.bottle-wrap{position:static;max-width:200px;margin:0 auto}}
.info .badge{
  display:inline-block;font-size:.65rem;padding:.25rem .7rem;
  border-radius:20px;margin-bottom:.8rem;font-weight:500;
}
.info .badge.red{background:rgba(180,60,60,.15);color:#d48a7a}
.info .badge.white{background:rgba(180,160,80,.15);color:#c9b87a}
.info h1{font-family:var(--font-serif);font-size:clamp(1.6rem,4vw,2.2rem);font-weight:300;color:#f0e3d0;line-height:1.2;margin-bottom:.15rem}
.info .name-en{font-family:var(--font-serif);font-size:1rem;color:var(--text-faint);font-style:italic;margin-bottom:1rem}
.info .highlight{font-size:.95rem;color:var(--gold);margin-bottom:1.2rem;line-height:1.5;border-left:2px solid rgba(201,169,110,.3);padding-left:1rem}
.info .desc{font-size:.88rem;color:var(--text-dim);line-height:1.7;margin-bottom:1.5rem}
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--border);border-radius:12px;overflow:hidden;margin-bottom:2rem}
.spec-item{background:var(--bg);padding:1rem;text-align:center}
.spec-item .label{font-size:.7rem;color:var(--text-faint);margin-bottom:.3rem}
.spec-item .value{font-size:.88rem;color:var(--text)}
.detail-section{margin-bottom:2rem}
.detail-section h2{font-family:var(--font-serif);font-size:1.2rem;font-weight:400;color:var(--gold);margin-bottom:.6rem;padding-bottom:.4rem;border-bottom:1px solid var(--border)}
.detail-section p,.detail-section ul{font-size:.85rem;color:var(--text-dim);line-height:1.7}
.detail-section ul li::before{content:"✦ ";color:var(--gold);opacity:.6}

/* --- Price Bar (sticky bottom) --- */
.price-bar{
  position:sticky;bottom:0;z-index:50;
  background:rgba(10,6,14,.95);backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  padding:.8rem clamp(1rem,4vw,2rem);
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
}
.price-val{font-family:var(--font-serif);font-size:1.5rem;color:var(--gold);font-weight:300}
.price-unit{font-size:.8rem;color:var(--text-faint);font-family:var(--font-serif)}
.price-na{font-size:.9rem;color:var(--text-muted)}
.buy-btn{
  display:inline-block;padding:.65rem 2rem;
  background:var(--gold-light);border:1px solid rgba(201,169,110,.35);
  border-radius:var(--radius-pill);color:var(--gold);
  text-decoration:none;font-size:.85rem;transition:all .3s;text-align:center;white-space:nowrap;
}
.buy-btn:hover{background:rgba(201,169,110,.2);border-color:var(--gold);transform:translateY(-1px)}
@media(max-width:767px){.buy-btn{flex:1}}

/* --- Footer --- */
footer{text-align:center;padding:3rem 2rem;border-top:1px solid var(--border)}
footer .brand{font-family:var(--font-serif);font-size:1rem;color:var(--gold);letter-spacing:.15em;margin-bottom:.5rem}
footer .tagline{font-size:.8rem;color:var(--text-dark)}
footer .links{margin:1rem 0;display:flex;gap:1.5rem;justify-content:center;flex-wrap:wrap}
footer .links a{color:var(--text-faint);text-decoration:none;font-size:.8rem;transition:color .2s}
footer .links a:hover{color:var(--gold)}
footer .copy{font-size:.7rem;color:#3c2e22;margin-top:.5rem}

/* --- Chat Bubble (Link to /chat/) --- */
.chat-bubble-link{
  position:fixed;
  bottom:max(16px,env(safe-area-inset-bottom,16px));
  right:max(16px,env(safe-area-inset-right,16px));
  z-index:9999;width:52px;height:52px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),var(--gold-dark));
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;
  box-shadow:0 4px 20px rgba(201,169,110,.3);
  transition:transform .25s ease,box-shadow .25s ease;
  color:var(--bg);text-decoration:none;
  -webkit-tap-highlight-color:transparent;touch-action:manipulation;
}
.chat-bubble-link:hover{transform:scale(1.08);box-shadow:0 6px 28px rgba(201,169,110,.4)}
.chat-bubble-link:active{transform:scale(.92)}
.chat-bubble-link img{width:100%;height:100%;border-radius:50%;object-fit:cover;display:block}
.chat-bubble-link .badge{
  position:absolute;top:-3px;right:-3px;
  width:11px;height:11px;background:#e05a5a;border-radius:50%;
  border:2px solid var(--bg);
}

/* --- Animations --- */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.fade-in.visible{opacity:1;transform:translateY(0)}
@keyframes float{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-8px)}}

/* --- Responsive: Tablet & Mobile --- */
@media(max-width:768px){
  .hero h1{font-size:2.4rem}
  .hero-slogan{font-size:1.2rem}
  .pain-grid,.process-flow,.terroir-grid,.omni-content,.detail-grid{grid-template-columns:1fr}
  .section-inner{padding:4rem 1.5rem}
  .section-title{font-size:2rem}
  .section-sub{font-size:1.1rem;margin-bottom:2rem}
  .pain-card p,.process-step p,.omni-card p,.terroir-card .region-desc{font-size:1rem;line-height:1.7}
  .pain-card,.terroir-card,.omni-card{padding:2rem 1.5rem}
  .process-step{padding:2rem 1rem}
  .hero-btn{display:block;width:fit-content;margin:0 auto!important}
  .hero-btn + .hero-btn{margin-top:.8rem!important}
  .prod-grid{padding:0 1.5rem}
  .pain-card h3{font-size:1.3rem}
  .process-step h3{font-size:1.2rem}
  .terroir-card h3{font-size:1.2rem}
  .omni-card h3{font-size:1.3rem}
}
@media(max-width:480px){
  .hero h1{font-size:2rem}
  .hero-slogan{font-size:1.1rem}
  .section-title{font-size:1.7rem}
  .section-sub{font-size:1rem}
  .hero-emblem{font-size:2.5rem}
  .hero{padding:1.5rem 1rem}
  .pain-card p,.process-step p{font-size:.95rem}
}