/* === 泡泡怪獸 POP MONSTER 黑金主題 v2.0 === */
:root {
  --bg:#0a0a0a;--bg-card:#141414;--bg-sub:#1c1c1c;
  --gold:#c8a96b;--gold-lt:#d8c08a;--gold-dk:#8a6a2f;
  --txt:#e8e2d6;--txt-m:#a89e8e;
  --border:rgba(200,169,107,.15);--border-s:rgba(200,169,107,.4);
  --font:'Montserrat','Noto Sans TC',system-ui,sans-serif;
  --r:8px;--r-lg:16px;--tap:44px;
  --shadow:0 4px 24px rgba(0,0,0,.6);
  --gold-grad:linear-gradient(135deg,#c8a96b,#d8c08a);
  --shimmer:linear-gradient(120deg,#c8a96b 0%,#fff8dc 50%,#c8a96b 100%);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--font);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-lt)}

/* === NAV === */
.nav{position:sticky;top:0;z-index:100;background:rgba(10,10,10,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 24px}
.nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-logo{font-size:18px;font-weight:700;color:var(--gold-lt);letter-spacing:1px}
.nav-logo span{font-weight:400;color:var(--txt-m);font-size:13px;margin-left:8px}
.nav-links{display:flex;gap:24px;font-size:14px}
.nav-links a{color:var(--txt-m);font-weight:500}
.nav-links a:hover{color:var(--gold)}
.nav-menu-btn{display:none;background:none;border:none;color:var(--gold);font-size:24px;cursor:pointer;min-width:var(--tap);min-height:var(--tap)}

/* === HERO (首頁) === */
.hero{padding:80px 24px;text-align:center;background:radial-gradient(ellipse at 50% 0%,rgba(200,169,107,.08) 0%,transparent 70%)}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:-1px}
.hero h1 em{font-style:normal;background:var(--shimmer);background-size:200% auto;-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:shimmer 4s linear infinite}
@keyframes shimmer{to{background-position:200% center}}
.hero p{font-size:18px;color:var(--txt-m);max-width:600px;margin:0 auto 32px}

/* === PRODUCT GRID (首頁) === */
.section{max-width:1200px;margin:0 auto;padding:40px 24px}
.section-title{font-size:24px;font-weight:700;color:var(--gold-lt);margin-bottom:8px}
.section-sub{font-size:14px;color:var(--txt-m);margin-bottom:32px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;transition:transform .35s cubic-bezier(.16,1,.3,1),border-color .35s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);border-color:var(--gold)}
.card-img{aspect-ratio:4/3;background:var(--bg-sub);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-img img{transform:scale(1.05)}
.card-img .badge{position:absolute;top:12px;left:12px;background:var(--gold);color:#000;font-size:11px;font-weight:700;padding:4px 10px;border-radius:4px;letter-spacing:1px}
.card-body{padding:20px;flex:1;display:flex;flex-direction:column}
.card-sku{font-size:11px;color:var(--txt-m);letter-spacing:2px;margin-bottom:4px}
.card-name{font-size:17px;font-weight:700;color:#fff;margin-bottom:6px;line-height:1.3}
.card-desc{font-size:13px;color:var(--txt-m);flex:1;margin-bottom:16px}
.card-cat{font-size:11px;color:var(--gold-dk);border:1px solid var(--gold-dk);display:inline-block;padding:2px 8px;border-radius:4px;margin-bottom:12px;align-self:flex-start}
.card-btn{display:block;text-align:center;padding:10px;background:var(--gold-grad);color:#0a0a0a;font-weight:700;font-size:14px;border-radius:var(--r);transition:box-shadow .3s}
.card-btn:hover{box-shadow:0 4px 20px rgba(200,169,107,.35);color:#0a0a0a}

/* === PRODUCT DETAIL PAGE === */
.pd{max-width:1000px;margin:0 auto;padding:40px 24px}
.pd-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--txt-m);margin-bottom:24px}
.pd-back:hover{color:var(--gold)}
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-bottom:48px}
.pd-img{background:var(--bg-card);border-radius:var(--r-lg);padding:32px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border);aspect-ratio:1/1}
.pd-img img{max-width:90%;max-height:90%;object-fit:contain}
.pd-info h1{font-size:clamp(1.5rem,3vw,2.2rem);color:#fff;margin-bottom:12px;font-weight:800}
.pd-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.pd-meta span{font-size:12px;color:var(--txt-m);background:var(--bg-sub);padding:4px 10px;border-radius:4px}
.pd-desc{font-size:16px;color:var(--txt);line-height:1.8;margin-bottom:28px}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:40px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--tap);padding:12px 28px;font-size:15px;font-weight:700;border-radius:var(--r);border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;text-decoration:none}
.btn:focus-visible{outline:2px solid var(--gold-lt);outline-offset:3px}
.btn-gold{background:var(--gold-grad);color:#0a0a0a}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(200,169,107,.4);color:#0a0a0a}
.btn-outline{background:transparent;color:var(--gold);border:2px solid var(--gold)}
.btn-outline:hover{background:rgba(200,169,107,.1);color:var(--gold)}

/* === FEATURES === */
.features{border-top:1px solid var(--border);padding-top:40px}
.features h2{font-size:20px;color:var(--gold);margin-bottom:20px}
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px}
.feat-item{padding:14px 18px;background:var(--bg-sub);border-left:3px solid var(--gold-dk);border-radius:0 var(--r) var(--r) 0;font-size:14px;color:var(--txt);transition:border-color .2s}
.feat-item:hover{border-left-color:var(--gold)}

/* === FAQ === */
.faq{margin-top:48px;border-top:1px solid var(--border);padding-top:40px}
.faq h2{font-size:20px;color:var(--gold);margin-bottom:20px}
.faq-item{margin-bottom:12px;border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.faq-q{padding:14px 18px;background:var(--bg-sub);color:var(--gold-lt);font-weight:600;font-size:14px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.faq-q::after{content:'+';font-size:18px;color:var(--gold-dk);transition:transform .3s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{padding:0 18px;max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s;font-size:14px;color:var(--txt-m);line-height:1.7}
.faq-item.open .faq-a{max-height:300px;padding:14px 18px}

/* === FOOTER === */
.footer{background:var(--bg-card);border-top:1px solid var(--border);margin-top:60px;padding:40px 24px;text-align:center}
.footer-brand{font-size:16px;font-weight:700;color:var(--gold-lt);margin-bottom:8px}
.footer-sub{font-size:13px;color:var(--txt-m);margin-bottom:16px;line-height:1.6}
.footer-links{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin-bottom:16px}
.footer-links a{font-size:12px;color:var(--txt-m)}
.footer-links a:hover{color:var(--gold)}
.footer-copy{font-size:11px;color:var(--txt-m);opacity:.6}

/* === COOKIE CONSENT === */
.cookie-bar{position:fixed;bottom:0;left:0;right:0;z-index:999;background:var(--bg-card);border-top:1px solid var(--border);padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--txt-m);transform:translateY(100%);transition:transform .4s}
.cookie-bar.show{transform:translateY(0)}
.cookie-bar a{color:var(--gold)}
.cookie-bar button{min-height:36px;padding:8px 20px;font-size:13px;border-radius:var(--r);border:none;cursor:pointer;font-weight:600}
.cookie-accept{background:var(--gold);color:#0a0a0a}
.cookie-decline{background:transparent;color:var(--txt-m);border:1px solid var(--border)}

/* === 404 === */
.page-404{min-height:80vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}
.page-404 h1{font-size:72px;color:var(--gold);margin-bottom:8px}
.page-404 p{color:var(--txt-m);margin-bottom:24px}

/* === CATEGORY FILTER === */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.filter-btn{padding:6px 16px;font-size:13px;border-radius:var(--r);border:1px solid var(--border);background:transparent;color:var(--txt-m);cursor:pointer;transition:all .2s}
.filter-btn:hover,.filter-btn.active{background:var(--gold);color:#0a0a0a;border-color:var(--gold)}

/* === RESPONSIVE === */
@media(max-width:768px){
  .nav-links{display:none}
  .nav-menu-btn{display:flex;align-items:center;justify-content:center}
  .pd-grid{grid-template-columns:1fr;gap:24px}
  .pd-cta{flex-direction:column}
  .btn{width:100%;text-align:center}
  .hero{padding:48px 20px}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .card-body{padding:14px}
  .card-name{font-size:15px}
  .footer-links{flex-direction:column;gap:12px}
  .cookie-bar{flex-direction:column;text-align:center}
}

/* === BRAND STORY === */
.brand{padding:60px 24px;max-width:1200px;margin:0 auto}
.brand-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.brand-card{background:rgba(200,169,107,.04);border:1px solid var(--border);border-radius:var(--r-lg);padding:28px;transition:border-color .3s,transform .3s}
.brand-card:hover{border-color:var(--gold-dk);transform:translateY(-3px)}
.brand-icon{font-size:28px;margin-bottom:12px}
.brand-card h3{font-size:17px;color:var(--gold-lt);margin-bottom:8px;font-weight:700}
.brand-card p{font-size:14px;color:var(--txt-m);line-height:1.7}

/* === FEATURED PRODUCT (首頁主打) === */
.featured{padding:60px 24px;max-width:1200px;margin:0 auto}
.featured-inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-lg);padding:40px;position:relative;overflow:hidden}
.featured-inner::before{content:'';position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(200,169,107,.06) 0%,transparent 70%);pointer-events:none}
.featured-img{aspect-ratio:1/1;background:var(--bg-sub);border-radius:var(--r);display:flex;align-items:center;justify-content:center;position:relative}
.featured-badge{position:absolute;top:16px;left:16px;background:var(--gold);color:#000;font-size:12px;font-weight:700;padding:6px 14px;border-radius:4px;letter-spacing:1px}
.featured-info h2{font-size:clamp(1.4rem,3vw,2rem);color:#fff;margin-bottom:12px}
.featured-info .tagline{font-size:15px;color:var(--gold);margin-bottom:16px;font-weight:600}
.featured-info p{font-size:14px;color:var(--txt-m);line-height:1.8;margin-bottom:20px}
.featured-stats{display:flex;gap:24px;margin-bottom:24px}
.stat{text-align:center}
.stat-num{font-size:28px;font-weight:800;color:var(--gold-lt);font-family:'Montserrat',sans-serif}
.stat-label{font-size:11px;color:var(--txt-m);margin-top:2px}

/* === STEP PROCESS (施工步驟) === */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:28px 0}
.step{background:var(--bg-sub);border-radius:var(--r);padding:20px;text-align:center;border:1px solid var(--border);transition:border-color .3s}
.step:hover{border-color:var(--gold-dk)}
.step-num{width:36px;height:36px;border-radius:50%;background:var(--gold-grad);color:#0a0a0a;font-weight:800;font-size:16px;display:inline-flex;align-items:center;justify-content:center;margin-bottom:10px}
.step h4{font-size:14px;color:var(--gold-lt);margin-bottom:4px}
.step p{font-size:12px;color:var(--txt-m)}

/* === COMPARISON TABLE === */
.compare{margin:32px 0}
.compare h3{font-size:17px;color:var(--gold);margin-bottom:16px}
.compare-table{width:100%;border-collapse:collapse;font-size:13px}
.compare-table th{background:var(--bg-sub);color:var(--gold-lt);padding:10px 14px;text-align:left;border-bottom:2px solid var(--gold-dk);font-weight:600}
.compare-table td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--txt-m)}
.compare-table tr:hover td{background:rgba(200,169,107,.04)}
.compare-table .highlight{color:var(--gold);font-weight:600}

/* === SPEC LIST === */
.specs{margin:28px 0}
.specs h3{font-size:17px;color:var(--gold);margin-bottom:16px}
.spec-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px}
.spec-item{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-sub);border-radius:var(--r);font-size:13px;color:var(--txt)}
.spec-item .icon{color:var(--gold);font-size:16px;flex-shrink:0}

/* === STICKY CTA (行動端) === */
.sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;z-index:98;background:rgba(10,10,10,.95);backdrop-filter:blur(8px);border-top:1px solid var(--border);padding:12px 20px;gap:10px}
.sticky-cta .btn{flex:1;text-align:center;font-size:14px;padding:12px 16px}

/* === SOCIAL PROOF === */
.social{padding:40px 24px;max-width:1200px;margin:0 auto;text-align:center}
.social-badges{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;margin-top:20px}
.social-badge{display:flex;flex-direction:column;align-items:center;gap:4px}
.social-badge .num{font-size:24px;font-weight:800;color:var(--gold-lt);font-family:'Montserrat',sans-serif}
.social-badge .label{font-size:12px;color:var(--txt-m)}

/* === GLASSMORPHISM CARD === */
.glass{background:rgba(255,255,255,.03);backdrop-filter:blur(12px);border:1px solid rgba(200,169,107,.1);border-radius:var(--r-lg)}

/* === DIVIDER === */
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--gold-dk),transparent);margin:40px auto;max-width:200px}

/* === ANIMATION === */
.fade-up{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* === STICKY CTA RESPONSIVE === */
@media(max-width:768px){
  .featured-inner{grid-template-columns:1fr;padding:24px}
  .featured-stats{justify-content:center}
  .sticky-cta{display:flex}
  .brand-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
}