:root{--primary-color:#4f7df3;--primary-dark:#3b5bdb;--primary-light:#7c9eff;--primary-rgb:79,125,243;--bg-gradient-start:#e0f0ff;--bg-gradient-end:#c8e2ff;--glass-bg:rgba(255,255,255,0.45);--glass-bg-strong:rgba(255,255,255,0.6);--glass-border:rgba(255,255,255,0.7);--glass-shadow:8px 8px 20px rgba(0,0,0,0.05),-6px -6px 12px rgba(255,255,255,0.5);--text-primary:#1e293b;--text-secondary:#4a5b7a;--text-muted:#6c7a91;--success:#4caf50;--warning:#ff9800;--danger:#f56c6c;--info:#3b5bdb;--blur-intensity:16px;--card-radius:28px}
@media (prefers-color-scheme: dark){:root{--bg-gradient-start:#1a2a3a;--bg-gradient-end:#0f1a24;--glass-bg:rgba(30,40,50,0.55);--glass-bg-strong:rgba(40,50,65,0.7);--glass-border:rgba(80,100,120,0.5);--text-primary:#eef2ff;--text-secondary:#b9c7d9;--text-muted:#8f9bb3}}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Inter','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:linear-gradient(145deg,var(--bg-gradient-start),var(--bg-gradient-end));min-height:100vh;color:var(--text-primary);-webkit-font-smoothing:antialiased}
.glass-card{background:var(--glass-bg);backdrop-filter:blur(var(--blur-intensity));-webkit-backdrop-filter:blur(var(--blur-intensity));border-radius:var(--card-radius);box-shadow:var(--glass-shadow);border:1px solid var(--glass-border);transition:all .3s cubic-bezier(0.4,0,0.2,1)}
.btn-glass-sm{background:rgba(255,255,245,0.7);backdrop-filter:blur(8px);border:none;border-radius:48px;padding:8px 16px;font-weight:600;color:var(--text-secondary);box-shadow:3px 3px 8px rgba(0,0,0,0.05),-3px -3px 8px rgba(255,255,255,0.5);transition:all .2s ease;cursor:pointer;font-size:.85rem;display:inline-flex;align-items:center;gap:6px;text-decoration:none}
.btn-glass-sm:hover{transform:scale(0.98);color:var(--text-primary)}
.btn-primary-glass{background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;box-shadow:0 8px 20px rgba(59,91,219,0.3);border:none;border-radius:48px;padding:12px 24px;font-weight:600;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.btn-primary-glass:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(59,91,219,0.4);color:#fff}
.btn-primary-glass:active{transform:translateY(0)}
.pc-glass-header{background:rgba(255,255,255,0.5);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.6);padding:16px 0;position:sticky;top:0;z-index:100}
.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.logo-section h1{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary-dark),var(--primary-color));-webkit-background-clip:text;background-clip:text;color:transparent;margin:0;cursor:pointer}
.logo-section h1 i{background:none;-webkit-background-clip:unset;background-clip:unset;color:var(--primary-color)}
.site-desc{font-size:.8rem;color:var(--text-muted);margin:4px 0 0}
.header-actions{display:flex;gap:12px}
.pc-glass-main{padding:30px 0 60px}
.announcement-card{padding:14px 20px;font-size:.9rem}
.filter-section{padding:16px 20px}
.search-input{background:rgba(255,255,255,0.6);border:none;border-radius:48px;padding:10px 18px}
.search-input:focus{background:rgba(255,255,255,0.8);box-shadow:none;border-color:var(--primary-color)}
.sort-section{display:flex;align-items:center;justify-content:flex-end;flex-wrap:wrap;gap:12px}
.sort-buttons{display:flex;gap:8px;flex-wrap:wrap}
.sort-chip{background:rgba(255,255,255,0.5);backdrop-filter:blur(8px);padding:6px 16px;border-radius:40px;font-size:.8rem;color:var(--text-secondary);text-decoration:none;transition:all .2s;display:inline-flex;align-items:center;gap:6px}
.sort-chip:hover{background:rgba(255,255,255,0.7);color:var(--text-primary)}
.sort-chip.active{background:var(--primary-color);color:#fff}
.categories-section{overflow-x:auto}
.categories-scroll{display:flex;gap:10px;flex-wrap:wrap}
.filter-indicator{padding:12px 20px;font-size:.85rem}
.customer-service-float{position:fixed;bottom:30px;right:30px;z-index:1000}
.service-btn{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;box-shadow:0 6px 16px rgba(0,0,0,0.2);display:flex;align-items:center;justify-content:center;font-size:24px;cursor:pointer;transition:all .2s}
.service-btn:hover{transform:scale(1.05)}
.service-text{display:none}
.service-popup{position:absolute;bottom:70px;right:0;width:280px;background:var(--glass-bg-strong);backdrop-filter:blur(20px);border-radius:20px;box-shadow:0 10px 30px rgba(0,0,0,0.15);border:1px solid var(--glass-border);display:none;overflow:hidden}
.service-popup.active{display:block;animation:fadeInUp .2s ease}
.service-popup-header{padding:14px 16px;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;display:flex;justify-content:space-between;align-items:center;font-weight:600}
.close-service{background:none;border:none;color:#fff;cursor:pointer;font-size:1rem}
.service-popup-body{padding:12px 0}
.service-item{display:flex;align-items:center;gap:12px;padding:10px 16px;font-size:.85rem;border-bottom:1px solid var(--glass-border)}
.service-item i{width:24px;color:var(--primary-color);font-size:1rem}
.service-item a{color:var(--text-primary);text-decoration:none}
.service-item a:hover{color:var(--primary-color)}
.scroll-top-btn{position:fixed;bottom:30px;right:100px;width:44px;height:44px;border-radius:50%;background:var(--glass-bg-strong);backdrop-filter:blur(12px);border:1px solid var(--glass-border);box-shadow:0 4px 12px rgba(0,0,0,0.15);cursor:pointer;display:none;z-index:1000;color:var(--primary-color);font-size:1.2rem;align-items:center;justify-content:center;transition:all .3s ease}
.scroll-top-btn:hover{transform:scale(1.05);background:var(--primary-color);color:#fff}
.scroll-top-btn.show{display:flex}
.pc-glass-footer{background:var(--glass-bg);backdrop-filter:blur(var(--blur-intensity));border-top:1px solid var(--glass-border);padding:24px 0;margin-top:40px;color:var(--text-muted);font-size:.85rem;text-align:center}
.footer-content p{margin-bottom:6px}
.footer-content a{color:var(--primary-color);text-decoration:none}
.footer-content a:hover{text-decoration:underline}
@keyframes fadeInUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.form-control-custom{width:100%;padding:10px 16px;background:rgba(255,255,255,0.6);border:1px solid var(--glass-border);border-radius:40px;font-size:.9rem;color:var(--text-primary);transition:all .3s ease}
.form-control-custom:focus{outline:none;border-color:var(--primary-color);background:rgba(255,255,255,0.8);box-shadow:none}
.form-text{font-size:.75rem;color:var(--text-muted);margin-top:4px}
@media (max-width:768px){.pc-glass-header{padding:12px 0}.header-content{flex-direction:column;text-align:center}.logo-section h1{font-size:1.2rem}.site-desc{font-size:.7rem}.filter-section .row{flex-direction:column}.sort-section{justify-content:flex-start;margin-top:12px}.customer-service-float{bottom:20px;right:20px}.scroll-top-btn{bottom:20px;right:90px}}