/* ========== 卡密商城 - 前端样式 ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px;scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;background:#f0f2f5;color:#1e293b;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:#6366f1;text-decoration:none;transition:color .2s}
a:hover{color:#4f46e5}
img{max-width:100%;height:auto}
main{flex:1}

:root{
    --primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--primary-bg:rgba(99,102,241,0.08);
    --success:#22c55e;--warning:#f59e0b;--danger:#ef4444;
    --text:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;
    --bg:#f0f2f5;--white:#fff;--border:#e2e8f0;--border-light:#f1f5f9;
    --shadow-sm:0 1px 3px rgba(0,0,0,0.06);--shadow:0 4px 16px rgba(0,0,0,0.08);--shadow-lg:0 8px 32px rgba(0,0,0,0.12);
    --radius:10px;--radius-lg:14px;--radius-xl:18px;
    --max-width:1100px;
}

.container{max-width:var(--max-width);margin:0 auto;padding:0 16px}

/* ===== Header ===== */
.site-header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--text)}
.logo:hover{color:var(--primary)}
.logo-icon{font-size:24px}
.nav-links{display:flex;gap:4px}
.nav-links a{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);transition:all .2s}
.nav-links a:hover{background:var(--primary-bg);color:var(--primary)}
.nav-links a.active{background:var(--primary);color:#fff}
.menu-toggle{display:none;background:none;border:1px solid var(--border);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:16px}

/* ===== Footer ===== */
.site-footer{background:var(--white);border-top:1px solid var(--border);padding:20px 0;margin-top:40px}
.footer-inner{text-align:center;font-size:12px;color:var(--text-muted)}
.footer-contact{margin-top:6px;display:flex;justify-content:center;gap:16px;font-size:12px}

/* ===== Toast ===== */
.toast{position:fixed;top:20px;right:20px;padding:12px 24px;border-radius:10px;color:#fff;font-size:14px;font-weight:600;z-index:9999;transform:translateX(120%);transition:transform .4s cubic-bezier(.34,1.56,.64,1);box-shadow:var(--shadow-lg)}
.toast.show{transform:translateX(0)}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}
.toast.info{background:var(--primary)}

/* ===== Homepage ===== */
.page-hero{background:linear-gradient(135deg,#6366f1 0%,#a855f7 50%,#ec4899 100%);padding:48px 0 36px;margin-bottom:32px;text-align:center;color:#fff}
.page-hero h1{font-size:28px;font-weight:800;margin-bottom:8px;text-shadow:0 2px 8px rgba(0,0,0,0.15)}
.page-hero p{font-size:15px;opacity:.85}

/* Notice bar */
.notice-bar{background:linear-gradient(135deg,#fef3c7,#fde68a);border:1px solid #fcd34d;border-radius:var(--radius);padding:12px 16px;margin-bottom:24px;display:flex;align-items:flex-start;gap:10px;font-size:13px;color:#92400e}
.notice-bar .notice-icon{font-size:18px;flex-shrink:0}
.notice-bar .notice-list{flex:1}
.notice-bar .notice-item{margin-bottom:4px}
.notice-bar .notice-item:last-child{margin-bottom:0}

/* Category tabs */
.category-tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.category-tab{padding:6px 18px;border-radius:20px;font-size:13px;font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--white);color:var(--text-secondary);transition:all .2s}
.category-tab:hover{border-color:var(--primary);color:var(--primary)}
.category-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* Product grid */
.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin-bottom:32px}
.product-card{background:var(--white);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);transition:all .3s;cursor:pointer;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-card-cover{height:160px;background:linear-gradient(135deg,#6366f1,#a855f7);display:flex;align-items:center;justify-content:center;font-size:48px;position:relative;overflow:hidden}
.product-card-cover img{width:100%;height:100%;object-fit:cover}
.product-card-badge{position:absolute;top:10px;right:10px;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700;background:var(--success);color:#fff}
.product-card-body{padding:16px;flex:1;display:flex;flex-direction:column}
.product-card-cat{font-size:11px;color:var(--primary);font-weight:600;margin-bottom:4px}
.product-card-name{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card-desc{font-size:12px;color:var(--text-muted);margin-bottom:12px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.product-card-footer{display:flex;align-items:center;justify-content:space-between}
.product-card-price{font-size:20px;font-weight:800;color:var(--danger)}
.product-card-price small{font-size:12px;font-weight:400}
.product-card-price .original{font-size:12px;color:var(--text-muted);text-decoration:line-through;margin-left:6px;font-weight:400}
.product-card-stock{font-size:11px;color:var(--text-muted)}
.product-card-btn{display:block;text-align:center;padding:10px;background:var(--primary);color:#fff;font-size:13px;font-weight:600;border-radius:0 0 var(--radius-lg) var(--radius-lg);transition:background .2s}
.product-card-btn:hover{background:var(--primary-dark);color:#fff}

/* ===== Product Detail ===== */
.product-detail{max-width:680px;margin:0 auto;padding:16px}

/* Breadcrumb */
.pd-breadcrumb{font-size:12px;color:var(--text-muted);margin-bottom:12px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.pd-breadcrumb a{color:var(--text-secondary);font-weight:500}
.pd-breadcrumb a:hover{color:var(--primary)}
.pd-breadcrumb .sep{color:var(--border);font-size:10px}
.pd-breadcrumb .current{color:var(--text);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:200px}

/* Card base */
.pd-card{background:var(--white);border-radius:16px;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);margin-bottom:12px;overflow:hidden}

/* Cover card */
.pd-cover-card{overflow:hidden;border-radius:18px;border:none;box-shadow:var(--shadow)}
.pd-cover{position:relative;height:240px;background:linear-gradient(135deg,#6366f1,#a855f7);display:flex;align-items:center;justify-content:center;overflow:hidden}
.pd-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.pd-cover:hover img{transform:scale(1.03)}
.pd-cover-placeholder{font-size:64px;opacity:.8}
.pd-cover-tags{position:absolute;top:12px;left:12px;display:flex;gap:6px;flex-wrap:wrap;z-index:3}
.pd-ctag{padding:5px 12px;border-radius:8px;font-size:11px;font-weight:700;color:#fff;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 2px 8px rgba(0,0,0,.15)}
.ctag-flash{background:rgba(239,68,68,.9)}
.ctag-rec{background:rgba(99,102,241,.9)}
.ctag-hot{background:rgba(249,115,22,.9)}
.ctag-group{background:rgba(139,92,246,.9)}
.pd-header{padding:20px 22px 18px}
.pd-title{font-size:20px;font-weight:800;color:var(--text);line-height:1.4;margin-bottom:6px}
.pd-desc{font-size:13px;color:var(--text-secondary);line-height:1.7;white-space:pre-line}

/* Price Panel */
.price-panel{padding:18px 20px}
.price-main-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.price-current{display:flex;align-items:baseline;gap:2px;flex-wrap:wrap}
.price-symbol{font-size:16px;font-weight:700;color:var(--danger)}
.price-value{font-size:34px;font-weight:800;color:var(--danger);line-height:1}
.price-original{font-size:14px;color:var(--text-muted);text-decoration:line-through;margin-left:8px;font-weight:400}
.price-off{font-size:11px;font-weight:700;color:#fff;background:var(--danger);padding:2px 8px;border-radius:4px;margin-left:8px}
.price-save-badge{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:20px;white-space:nowrap;animation:pulseBadge 2s ease-in-out infinite}
@keyframes pulseBadge{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}
.price-tag{display:flex;align-items:center;justify-content:space-between;margin-top:10px;padding:10px 14px;border-radius:10px;font-size:13px}
.price-tag-left{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.price-tag-right{font-size:12px;font-weight:600;white-space:nowrap}
.tag-icon{font-size:16px}
.tag-label{font-weight:700}
.tag-price{font-weight:800;font-size:15px}
.tag-detail{font-size:11px;padding:2px 6px;border-radius:4px;font-weight:600}
.tag-save{font-weight:700}
.tag-progress{font-weight:600}
.tag-flash{background:linear-gradient(135deg,#fef3c7,#fde68a);border:1px solid #fbbf24}
.tag-flash .tag-label{color:#92400e}
.tag-flash .tag-price{color:#b45309}
.tag-flash .price-tag-right{color:#92400e}
.tag-member{background:linear-gradient(135deg,#ede9fe,#ddd6fe);border:1px solid #a78bfa}
.tag-member .tag-label{color:#5b21b6}
.tag-member .tag-detail{background:#7c3aed;color:#fff}
.tag-member .tag-save{color:#7c3aed}
.tag-group{background:linear-gradient(135deg,#ecfdf5,#d1fae5);border:1px solid #6ee7b7}
.tag-group .tag-label{color:#065f46}
.tag-group .tag-price{color:#047857}
.tag-group .tag-detail{background:#059669;color:#fff}
.tag-group .tag-progress{color:#065f46;background:#a7f3d0;padding:2px 8px;border-radius:10px;font-size:11px}

/* Member Level Price Card */
.level-price-card{padding:0}
.level-price-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:linear-gradient(135deg,#faf5ff,#f3e8ff);border-bottom:1px solid #e9d5ff}
.level-price-title{font-size:14px;font-weight:700;color:#6b21a8}
.level-login-link{font-size:12px;color:#7c3aed;text-decoration:none;font-weight:600;transition:color .2s}
.level-login-link:hover{color:#5b21b6;text-decoration:underline}
.level-price-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.level-price-item{text-align:center;padding:14px 6px 12px;border-right:1px solid var(--border-light);position:relative;transition:background .2s}
.level-price-item:last-child{border-right:none}
.level-price-item:hover{background:#faf5ff}
.level-price-item.is-current{background:linear-gradient(180deg,#f3e8ff,#ede9fe)}
.level-price-item.no-discount .level-lprice{color:var(--text-muted)}
.current-badge{position:absolute;top:4px;right:4px;background:#7c3aed;color:#fff;font-size:9px;font-weight:700;padding:1px 5px;border-radius:4px;line-height:1.4}
.level-icon{font-size:22px;margin-bottom:4px}
.level-name{font-size:11px;font-weight:600;color:var(--text-secondary);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.level-rate{font-size:10px;color:#7c3aed;font-weight:700;margin-bottom:4px}
.level-lprice{font-size:16px;font-weight:800;color:var(--danger);line-height:1.2}
.level-save{font-size:10px;color:#059669;font-weight:600;margin-top:2px}

/* Specs card */
.pd-specs{display:grid;grid-template-columns:repeat(2,1fr);gap:0;padding:0}
.pd-spec-item{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--border-light);border-right:1px solid var(--border-light)}
.pd-spec-item:nth-child(2n){border-right:none}
.pd-spec-item:nth-last-child(-n+2){border-bottom:none}
.spec-icon{font-size:20px;flex-shrink:0;width:36px;height:36px;background:var(--border-light);border-radius:10px;display:flex;align-items:center;justify-content:center}
.spec-body{flex:1;min-width:0}
.spec-label{font-size:11px;color:var(--text-muted);margin-bottom:1px}
.spec-value{font-size:14px;font-weight:700;color:var(--text)}

/* Order card */
.pd-order-card{padding:22px}
.pd-section-title{font-size:16px;font-weight:800;color:var(--text);margin-bottom:18px;padding-bottom:12px;border-bottom:2px solid var(--border-light)}

/* Order form */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.form-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;outline:none;transition:all .2s;background:var(--white)}
.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg)}
select.form-input{cursor:pointer}
.form-row{display:flex;gap:12px}
.form-row .form-group{flex:1}
.form-hint{font-size:11px;color:var(--text-muted);margin-top:4px}

.quantity-control{display:flex;align-items:center;gap:0;border:1px solid var(--border);border-radius:10px;overflow:hidden;width:fit-content}
.quantity-btn{width:40px;height:40px;border:none;background:var(--border-light);cursor:pointer;font-size:18px;font-weight:700;color:var(--text);transition:all .2s;display:flex;align-items:center;justify-content:center}
.quantity-btn:hover{background:var(--primary-bg);color:var(--primary)}
.quantity-input{width:56px;height:40px;border:none;border-left:1px solid var(--border);border-right:1px solid var(--border);text-align:center;font-size:15px;font-weight:700;outline:none}

/* Payment section */
.payment-methods{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
.payment-method{padding:12px 8px;border:2px solid var(--border);border-radius:12px;cursor:pointer;text-align:center;transition:all .2s;background:var(--white)}
.payment-method:hover{border-color:var(--primary-light);background:#fafafe}
.payment-method.selected{border-color:var(--primary);background:var(--primary-bg)}
.payment-method .pay-icon{font-size:22px;margin-bottom:3px}
.payment-method .pay-name{font-size:11px;font-weight:600;color:var(--text)}
.payment-method .pay-extra{font-size:10px;color:var(--primary);font-weight:700;margin-top:2px}

/* Checkout */
.pd-checkout{margin-top:20px;padding:20px;background:linear-gradient(135deg,#faf5ff,#eef2ff);border-radius:14px;border:1px solid #e0e7ff}
.checkout-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.checkout-label{font-size:14px;color:var(--text-secondary);font-weight:500}
.checkout-price{font-size:30px;font-weight:800;color:var(--danger);letter-spacing:-0.5px}
.checkout-save-row{margin-bottom:14px}
.checkout-save-row span:first-child{font-size:12px;color:var(--text-muted)}
.checkout-saved{font-size:13px;font-weight:700;color:#059669}
.btn-buy{width:100%;padding:16px 24px;background:linear-gradient(135deg,var(--primary),#8b5cf6);color:#fff;border:none;border-radius:14px;font-size:16px;font-weight:700;cursor:pointer;transition:all .25s;box-shadow:0 6px 20px rgba(99,102,241,0.35);display:flex;align-items:center;justify-content:center;gap:12px;position:relative;overflow:hidden}
.btn-buy::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);transition:left .6s}
.btn-buy:hover::before{left:100%}
.btn-buy:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(99,102,241,0.45)}
.btn-buy:active{transform:translateY(0);box-shadow:0 4px 12px rgba(99,102,241,0.3)}
.btn-buy:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.btn-buy-text{font-size:16px}
.btn-buy-price{font-size:14px;opacity:.85;background:rgba(255,255,255,.2);padding:3px 12px;border-radius:8px}

/* Sold out */
.pd-sold-out{text-align:center;padding:40px 20px}
.sold-out-icon{font-size:48px;margin-bottom:8px}
.sold-out-title{font-size:18px;font-weight:700;color:var(--text);margin-bottom:4px}
.sold-out-text{font-size:13px;color:var(--text-muted)}

/* Footer nav */
.pd-footer-nav{display:flex;gap:10px;justify-content:center;margin:8px 0 24px;flex-wrap:wrap}

/* ===== Order Result ===== */
.order-result{max-width:600px;margin:40px auto;padding:0 16px}
.order-result-card{background:var(--white);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow);text-align:center;border:1px solid var(--border-light)}
.order-result-icon{font-size:56px;margin-bottom:12px}
.order-result-title{font-size:20px;font-weight:700;margin-bottom:8px}
.order-result-no{font-size:14px;color:var(--text-muted);margin-bottom:20px}
.order-result-no code{background:var(--primary-bg);color:var(--primary);padding:4px 12px;border-radius:6px;font-weight:600;font-size:15px}
.order-info-table{width:100%;text-align:left;margin:20px 0;border-collapse:collapse}
.order-info-table td{padding:10px 12px;border-bottom:1px solid var(--border-light);font-size:14px}
.order-info-table td:first-child{color:var(--text-muted);width:100px}
.order-info-table td:last-child{font-weight:600;color:var(--text)}

.payment-qrcode{margin:20px auto;max-width:260px}
.payment-qrcode img{width:100%;border-radius:var(--radius);border:1px solid var(--border)}
.payment-qrcode p{font-size:12px;color:var(--text-muted);margin-top:8px}

.btn-group{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.btn{padding:10px 24px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;border:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-outline{background:var(--white);color:var(--text-secondary);border:1px solid var(--border)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}

/* ===== Query Page ===== */
.query-page{max-width:700px;margin:32px auto;padding:0 16px}
.query-card{background:var(--white);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow);border:1px solid var(--border-light)}
.query-card h2{font-size:20px;font-weight:700;margin-bottom:20px;text-align:center}
.query-form{display:flex;gap:10px;margin-bottom:24px}
.query-form .form-input{flex:1}
.query-form .btn{flex-shrink:0}

.order-card{border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;transition:all .2s}
.order-card:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm)}
.order-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;flex-wrap:wrap;gap:8px}
.order-card-no{font-size:13px;color:var(--text-muted);font-family:monospace}
.order-status{padding:3px 10px;border-radius:12px;font-size:11px;font-weight:700}
.status-pending{background:#fef3c7;color:#92400e}
.status-paid_pending{background:#dbeafe;color:#1e40af}
.status-completed{background:#dcfce7;color:#166534}
.status-cancelled{background:#fee2e2;color:#991b1b}
.order-card-body{font-size:13px;color:var(--text-secondary);display:grid;grid-template-columns:1fr 1fr;gap:6px}
.order-card-body span{display:flex;align-items:center;gap:4px}
.cards-display{margin-top:12px;padding:12px;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px}
.cards-display-title{font-size:12px;font-weight:600;color:#166534;margin-bottom:6px}
.cards-display pre{font-size:13px;color:#166534;white-space:pre-wrap;word-break:break-all;font-family:Consolas,"Courier New",monospace;line-height:1.6}
.cards-copy-btn{margin-top:8px;padding:4px 12px;font-size:12px;border:1px solid #86efac;border-radius:6px;background:#fff;color:#166534;cursor:pointer;font-weight:600;transition:all .2s}
.cards-copy-btn:hover{background:#166534;color:#fff}

.empty-result{text-align:center;padding:40px 20px;color:var(--text-muted)}
.empty-result .icon{font-size:48px;margin-bottom:10px;opacity:.4}

/* ===== Responsive ===== */
@media(max-width:768px){
    .page-hero{padding:32px 0 24px}
    .page-hero h1{font-size:22px}
    .product-grid{grid-template-columns:repeat(2,1fr);gap:12px}
    .product-card-cover{height:120px;font-size:32px}
    .product-card-body{padding:12px}
    .product-card-name{font-size:13px}
    .product-card-price{font-size:16px}
    .product-card-desc{display:none}
    .product-detail{padding:10px}
    .pd-cover{height:200px}
    .pd-cover-placeholder{font-size:48px}
    .pd-header{padding:16px 16px 14px}
    .pd-title{font-size:18px}
    .pd-order-card{padding:16px}
    .price-panel{padding:14px 16px}
    .price-value{font-size:28px}
    .checkout-price{font-size:24px}
    .level-price-grid{grid-template-columns:repeat(3,1fr)}
    .level-price-item:nth-child(3n){border-right:none}
    .level-price-item:nth-child(n+4){border-top:1px solid var(--border-light)}
    .form-row{flex-direction:column;gap:0}
    .payment-methods{grid-template-columns:repeat(3,1fr)}
    .gb-card{padding:16px}
    .gb-price{font-size:24px}
    .gb-actions{flex-direction:column}
    .gb-btn-normal{text-align:center}
    .pd-guarantees{flex-wrap:wrap}
    .pd-guarantee-item{min-width:45%;flex:unset;padding:10px 6px;font-size:11px}
    .nav-links{display:none;position:absolute;top:56px;left:0;right:0;background:var(--white);flex-direction:column;padding:8px;border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:99}
    .nav-links.open{display:flex}
    .nav-links a{padding:12px 16px;border-radius:8px}
    .menu-toggle{display:block}
    .query-form{flex-direction:column}
    .order-card-body{grid-template-columns:1fr}
    .order-result-card{padding:20px}
    .query-card{padding:20px}
    .container{padding:0 12px}
}

@media(max-width:380px){
    .product-grid{grid-template-columns:1fr}
    .payment-methods{grid-template-columns:repeat(2,1fr)}
    .level-price-grid{grid-template-columns:repeat(3,1fr)}
}

/* ===== Hero Member Bar ===== */
.hero-member{margin-top:12px;display:flex;gap:16px;justify-content:center;align-items:center;flex-wrap:wrap;font-size:13px;opacity:.9}
.hero-discount{background:rgba(255,255,255,.25);padding:2px 10px;border-radius:12px;font-weight:700;font-size:12px}

/* ===== Quick Nav ===== */
.quick-nav{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap}
.quick-nav-item{flex:1;min-width:70px;display:flex;flex-direction:column;align-items:center;gap:6px;padding:16px 8px;background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border-light);box-shadow:var(--shadow-sm);transition:all .2s;text-decoration:none;color:var(--text)}
.quick-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--primary-light);color:var(--primary)}
.qn-icon{font-size:28px}
.quick-nav-item span:last-child{font-size:12px;font-weight:600}

/* ===== Section Header ===== */
.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;margin-top:8px}
.section-header h2{font-size:18px;font-weight:800;color:var(--text)}
.section-more{font-size:13px;color:var(--primary);font-weight:600}

/* ===== Flash Sale ===== */
.flash-scroll{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;margin-bottom:24px;scroll-snap-type:x mandatory}
.flash-scroll::-webkit-scrollbar{height:4px}
.flash-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
.flash-card{min-width:180px;max-width:200px;background:linear-gradient(135deg,#fff5f5,#fff);border:1px solid #fecaca;border-radius:var(--radius-lg);padding:16px;cursor:pointer;transition:all .2s;scroll-snap-align:start;flex-shrink:0}
.flash-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.flash-badge{display:inline-block;background:var(--danger);color:#fff;font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;margin-bottom:8px}
.flash-name{font-size:14px;font-weight:700;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.flash-prices{display:flex;align-items:baseline;gap:6px;margin-bottom:6px}
.flash-price{font-size:18px;font-weight:800;color:var(--danger)}
.flash-original{font-size:12px;color:var(--text-muted);text-decoration:line-through}
.flash-countdown{font-size:12px;color:var(--danger);font-weight:600}

/* ===== Group Buy ===== */
.group-scroll{display:flex;gap:12px;overflow-x:auto;padding-bottom:8px;margin-bottom:24px;scroll-snap-type:x mandatory}
.group-scroll::-webkit-scrollbar{height:4px}
.group-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}
.group-card{min-width:180px;max-width:200px;background:linear-gradient(135deg,#eef2ff,#fff);border:1px solid #c7d2fe;border-radius:var(--radius-lg);padding:16px;cursor:pointer;transition:all .2s;scroll-snap-align:start;flex-shrink:0}
.group-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.group-badge{display:inline-block;background:var(--primary);color:#fff;font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;margin-bottom:8px}
.group-name{font-size:14px;font-weight:700;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}
.group-prices{display:flex;align-items:baseline;gap:6px;margin-bottom:8px}
.group-price{font-size:18px;font-weight:800;color:var(--primary)}
.group-original{font-size:12px;color:var(--text-muted);text-decoration:line-through}
.group-progress{height:6px;background:var(--border-light);border-radius:3px;overflow:hidden}
.group-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:3px;transition:width .3s}

/* ===== Product Tags ===== */
.product-card-tag{position:absolute;top:10px;left:10px;padding:2px 8px;border-radius:6px;font-size:10px;font-weight:700;color:#fff;z-index:2}
.tag-flash{background:var(--danger)}
.tag-hot{background:#f97316}
.tag-rec{background:var(--primary)}
.tag-group{background:#8b5cf6}
.flash-product-card{border:1px solid #fecaca}

/* ===== Auth Page ===== */
.auth-page{max-width:420px;margin:40px auto;padding:0 16px}
.auth-card{background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow);border:1px solid var(--border-light);overflow:hidden}
.auth-header{background:linear-gradient(135deg,#6366f1,#a855f7);padding:32px;text-align:center;color:#fff}
.auth-icon{font-size:40px;margin-bottom:8px}
.auth-header h2{font-size:22px;font-weight:800;margin-bottom:4px}
.auth-header p{font-size:13px;opacity:.85}
.auth-form{padding:28px}
.auth-footer{text-align:center;margin-top:16px;font-size:13px;color:var(--text-muted)}

/* ===== Member Card ===== */
.member-card{background:linear-gradient(135deg,#6366f1,#a855f7);border-radius:var(--radius-xl);padding:24px;color:#fff;margin-bottom:16px;box-shadow:0 4px 20px rgba(99,102,241,.3)}
.member-info{display:flex;align-items:center;gap:16px;margin-bottom:20px}
.member-avatar{width:56px;height:56px;background:rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;flex-shrink:0}
.member-detail h2{font-size:18px;font-weight:800;margin-bottom:4px}
.member-level{font-size:13px;opacity:.85}
.member-discount-tag{display:inline-block;margin-top:4px;background:rgba(255,255,255,.2);padding:2px 10px;border-radius:10px;font-size:11px;font-weight:700}
.member-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat-item{text-align:center;background:rgba(255,255,255,.12);border-radius:10px;padding:12px 6px}
.stat-value{font-size:16px;font-weight:800}
.stat-label{font-size:11px;opacity:.75;margin-top:2px}

/* ===== Commission List ===== */
.commission-list{display:flex;flex-direction:column;gap:1px}
.commission-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border-light)}
.commission-item:last-child{border-bottom:none}
.commission-amount{font-weight:700;font-size:15px;flex-shrink:0}
.commission-amount.positive{color:var(--success)}
.commission-amount.negative{color:var(--danger)}

/* ===== Order Item ===== */
.order-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border-light);cursor:pointer;transition:background .2s}
.order-item:hover{background:var(--border-light);margin:0 -8px;padding:10px 8px;border-radius:8px}
.order-item:last-child{border-bottom:none}

/* ===== Card (generic) ===== */
.card{background:var(--white);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light)}

/* ===== Modal ===== */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:999;display:flex;align-items:center;justify-content:center;padding:16px}
.modal-card{background:var(--white);border-radius:var(--radius-xl);padding:24px;max-width:440px;width:100%;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-lg)}

/* ===== Btn Small ===== */
.btn-sm{padding:6px 14px;font-size:12px;font-weight:600;border-radius:6px;background:var(--primary);color:#fff;border:none;cursor:pointer;transition:all .2s}
.btn-sm:hover{background:var(--primary-dark)}

/* ===== Product Detail - Cover Overlay ===== */
.pd-cover-overlay{position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(to top,rgba(0,0,0,.45),transparent);pointer-events:none;z-index:1}
.pd-cover-stats{position:absolute;bottom:0;left:0;right:0;z-index:2;display:flex;gap:12px;padding:10px 16px;font-size:12px;font-weight:600;color:rgba(255,255,255,.95)}
.pd-cover-stats span{display:flex;align-items:center;gap:3px;text-shadow:0 1px 3px rgba(0,0,0,.3)}

/* ===== Product Detail - Group Buy Card ===== */
.gb-card{border:2px solid var(--primary);background:linear-gradient(135deg,#eef2ff,#e0e7ff);padding:20px}
.gb-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.gb-title-row{display:flex;align-items:center;gap:8px}
.gb-icon{font-size:22px}
.gb-title{font-size:16px;font-weight:800;color:#4338ca}
.gb-save-tag{background:var(--danger);color:#fff;font-size:11px;padding:3px 10px;border-radius:12px;font-weight:700;animation:pulseBadge 2s ease-in-out infinite}
.gb-end-countdown{font-size:12px;color:#f59e0b;font-weight:600;background:rgba(255,255,255,.85);padding:4px 12px;border-radius:20px;backdrop-filter:blur(4px)}
.gb-price-row{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}
.gb-price{font-size:30px;font-weight:800;color:var(--danger);line-height:1}
.gb-orig-price{font-size:14px;color:var(--text-muted);text-decoration:line-through}
.gb-progress-wrap{margin-bottom:6px}
.gb-progress-info{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary);margin-bottom:5px}
.gb-progress-info strong{font-weight:700}
.gb-remain{color:#f59e0b}
.gb-done{color:var(--success)}
.gb-progress-track{height:10px;background:rgba(255,255,255,.7);border-radius:5px;overflow:hidden;box-shadow:inset 0 1px 3px rgba(0,0,0,.06)}
.gb-progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),#8b5cf6);border-radius:5px;transition:width .4s ease}
.gb-actions{display:flex;gap:8px;margin-top:14px}
.gb-btn-join{flex:1;padding:12px;font-size:14px;font-weight:700;background:linear-gradient(135deg,var(--primary),#8b5cf6);border:2px solid transparent;border-radius:12px;color:#fff;cursor:pointer;transition:all .25s;box-shadow:0 4px 12px rgba(99,102,241,.3)}
.gb-btn-join:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(99,102,241,.4)}
.gb-btn-join.active,.gb-btn-join:not(.active){opacity:1}
.gb-btn-normal{padding:12px 20px;font-size:13px;font-weight:600;border-radius:12px;color:var(--text-secondary);border:2px solid var(--border);background:var(--white);cursor:pointer;transition:all .25s}
.gb-btn-normal:hover{border-color:var(--text-muted)}
.gb-btn-normal.active{border-color:var(--text);color:var(--text);background:#f8fafc;font-weight:700}
.gb-btn-join:not(.active){opacity:.5;box-shadow:none}

/* ===== Product Detail - Guarantee Bar ===== */
.pd-guarantees{display:flex;flex-wrap:wrap;padding:0;overflow:hidden}
.pd-guarantee-item{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:6px;padding:12px 8px;border-right:1px solid var(--border-light);font-size:12px;font-weight:600;color:var(--text-secondary);white-space:nowrap}
.pd-guarantee-item:last-child{border-right:none}
.guarantee-icon{font-size:15px;flex-shrink:0}
.guarantee-text{overflow:hidden;text-overflow:ellipsis}

/* ===== Product Detail - Flash/Group/Discount Info ===== */
.detail-promo-bar{margin:12px 0;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:8px}
.promo-flash{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}
.promo-group{background:#eef2ff;color:var(--primary);border:1px solid #c7d2fe}
.promo-discount{background:#f0fdf4;color:#166534;border:1px solid #bbf7d0}

/* ===== Responsive additions ===== */
@media(max-width:768px){
    .quick-nav{gap:8px}
    .quick-nav-item{padding:12px 6px}
    .qn-icon{font-size:22px}
    .quick-nav-item span:last-child{font-size:11px}
    .flash-card,.group-card{min-width:160px}
    .member-stats{grid-template-columns:repeat(2,1fr);gap:8px}
    .stat-value{font-size:14px}
    .auth-page{margin:20px auto}
    .auth-form{padding:20px}
    .section-header h2{font-size:16px}
    .level-table{overflow-x:auto}
    .level-table table{min-width:500px}
}