:root{--bg:#f5f7fb;--surface:#fff;--text:#1f2937;--muted:#667085;--line:#e5e7eb;--primary:#2563eb;--primary-dark:#1d4ed8;--success:#0f9f6e;--warning:#d97706;--danger:#dc2626;--radius:16px;--shadow:0 10px 30px rgba(15,23,42,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-dark)}img{max-width:100%;display:block}.container{width:min(1160px,calc(100% - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:20px;font-weight:800;color:#111827}.nav-links{display:flex;align-items:center;gap:20px}.nav-links form{margin:0}.link-button{border:0;background:none;color:var(--muted);cursor:pointer;padding:0;font:inherit}.hero{padding:64px 0 42px}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:28px;align-items:center}.eyebrow{color:var(--primary);font-weight:700;letter-spacing:.08em}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;margin:10px 0 18px;letter-spacing:-.04em}.hero p{font-size:17px;color:var(--muted);max-width:650px}.notice{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;border-radius:12px;padding:13px 16px}.section{padding:24px 0 64px}.section-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:22px}.section-head h2{font-size:28px;margin:0}.section-head p{margin:0;color:var(--muted)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.product-card{overflow:hidden;display:flex;flex-direction:column}.product-cover{height:190px;background:linear-gradient(135deg,#dbeafe,#eef2ff);display:grid;place-items:center}.product-cover img{width:100%;height:100%;object-fit:cover}.cover-mark{font-size:48px;font-weight:900;color:#3b82f6}.product-body{padding:22px;display:flex;flex-direction:column;flex:1}.product-body h3{font-size:20px;margin:0 0 8px}.muted{color:var(--muted)}.price{font-size:28px;font-weight:850;color:#e11d48}.stock{font-size:13px;padding:4px 9px;border-radius:999px;background:#ecfdf5;color:#047857}.stock.out{background:#fff7ed;color:#c2410c}.product-meta{display:flex;align-items:center;justify-content:space-between;margin:16px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:9px 18px;border:1px solid transparent;border-radius:10px;background:var(--primary);color:#fff;font-weight:700;cursor:pointer;font:inherit}.btn:hover{background:var(--primary-dark);color:#fff}.btn-secondary{background:#fff;color:var(--text);border-color:var(--line)}.btn-secondary:hover{background:#f8fafc;color:var(--text)}.btn-danger{background:var(--danger)}.btn-small{min-height:34px;padding:5px 11px;font-size:13px}.btn-block{width:100%}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;padding:42px 0}.detail-cover{min-height:420px;overflow:hidden;display:grid;place-items:center;background:linear-gradient(135deg,#dbeafe,#f5f3ff)}.detail-cover img{width:100%;height:100%;object-fit:cover}.detail-info{padding:6px}.detail-info h1{font-size:36px;line-height:1.25;margin:8px 0}.description{white-space:pre-line;color:#475467}.buy-box{padding:22px;margin-top:24px}.form-group{margin-bottom:16px}.form-label{display:block;font-weight:700;margin-bottom:6px}.input,.select,.textarea{width:100%;border:1px solid #d0d5dd;border-radius:10px;padding:10px 12px;background:#fff;color:var(--text);font:inherit;outline:none}.input:focus,.select:focus,.textarea:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(59,130,246,.12)}.textarea{min-height:120px;resize:vertical}.help{font-size:13px;color:var(--muted);margin-top:5px}.captcha-row{display:grid;grid-template-columns:1fr 150px;gap:10px;align-items:center}.captcha-image{width:150px;height:48px;border-radius:8px;cursor:pointer}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-card{padding:22px;text-align:center;background:linear-gradient(145deg,#fff,#f0fdf4)}.contact-card img{width:180px;height:180px;object-fit:contain;margin:16px auto;border-radius:12px;border:1px solid var(--line);background:#fff}.wechat-id{font-size:20px;font-weight:800}.floating-contact{position:fixed;right:20px;bottom:20px;z-index:20;width:210px;padding:14px;text-align:center}.floating-contact img{width:116px;height:116px;object-fit:contain;margin:8px auto;border-radius:8px}.floating-contact .wechat-id{font-size:15px}.flash{margin:20px auto 0;padding:12px 16px;border-radius:10px;border:1px solid}.flash-success{background:#ecfdf5;border-color:#a7f3d0;color:#047857}.flash-error{background:#fef2f2;border-color:#fecaca;color:#b91c1c}.flash-warning{background:#fffbeb;border-color:#fde68a;color:#92400e}.flash-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}.panel{padding:26px}.auth-wrap{max-width:480px;margin:54px auto}.auth-wrap h1{margin-top:0}.order-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.summary-item{padding:18px;background:#f8fafc;border-radius:12px}.summary-item strong{display:block;font-size:18px;margin-top:4px}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse;min-width:720px}.table th,.table td{text-align:left;padding:13px 12px;border-bottom:1px solid var(--line);vertical-align:middle}.table th{font-size:13px;color:var(--muted);background:#f8fafc}.status{display:inline-flex;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:700;background:#f3f4f6}.status-0{background:#fff7ed;color:#c2410c}.status-1,.status-2{background:#ecfdf5;color:#047857}.status-3{color:#667085}.status-4{background:#fef2f2;color:#b91c1c}.secret-box{padding:18px;background:#111827;color:#f9fafb;border-radius:12px;margin:12px 0;word-break:break-all}.secret-box code{font:700 17px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.copy-row{display:flex;gap:10px;align-items:center}.site-footer{border-top:1px solid var(--line);padding:28px 0 100px;color:var(--muted);background:#fff}.empty{padding:44px;text-align:center;color:var(--muted)}.pagination{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}.page-link{padding:7px 12px;border:1px solid var(--line);border-radius:8px;background:#fff}.page-link.current{background:var(--primary);color:#fff;border-color:var(--primary)}
@media(max-width:900px){.product-grid{grid-template-columns:repeat(2,1fr)}.hero-grid,.detail-grid{grid-template-columns:1fr}.detail-cover{min-height:300px}.floating-contact{width:168px}.floating-contact img{width:90px;height:90px}.order-summary{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.container{width:min(100% - 22px,1160px)}.nav{min-height:60px}.nav-links{gap:12px;font-size:14px}.nav-links .hide-mobile{display:none}.hero{padding:38px 0 28px}.hero h1{font-size:36px}.product-grid{grid-template-columns:1fr}.detail-grid{padding:24px 0;gap:20px}.detail-info h1{font-size:28px}.form-grid{grid-template-columns:1fr}.captcha-row{grid-template-columns:1fr 126px}.captcha-image{width:126px}.floating-contact{position:static;width:auto;margin:0 11px 18px}.floating-contact img{width:120px;height:120px}.site-footer{padding-bottom:30px}.order-summary{grid-template-columns:1fr}.panel{padding:18px}.copy-row{align-items:stretch;flex-direction:column}}

/* Storefront design system */
:root{--bg:#f7f8fa;--text:#17202f;--muted:#707887;--primary:#3455db;--primary-dark:#253fb1;--line:#e5e8ee;--radius:16px;--shadow:0 4px 18px #17202f04}
body{font-size:14px}.container{width:min(1160px,calc(100% - 48px))}h1,h2,h3{letter-spacing:-.035em}button,input,select,textarea{font:inherit}button:disabled{opacity:.55;cursor:wait}.brand{display:flex;align-items:center;gap:10px;font-size:19px;letter-spacing:-.025em}.brand img{width:32px;height:32px;object-fit:contain}.brand-icon{display:inline-grid;place-items:center;width:33px;height:33px;background:var(--primary);color:white;border-radius:10px;font-size:27px;font-weight:500}.site-header{position:relative;background:#fff;backdrop-filter:none}.nav{min-height:78px}.nav-links>a{color:#4a5261}.contact-trigger{border:1px solid var(--line);background:white;border-radius:8px;padding:8px 15px;cursor:pointer;color:var(--text)}.shop-intro{background:#edf1fc;border-bottom:1px solid #e1e6f4;padding:42px 0 0}.intro-top{display:flex;align-items:center;justify-content:space-between}.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:700}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--primary);margin-right:8px}.shop-intro h1{font-size:clamp(29px,3.5vw,43px);font-weight:750;line-height:1.4;margin:13px 0 10px}.shop-intro h1>span{color:var(--primary)}.shop-intro p{color:#697388;font-size:14px;margin-bottom:27px}.intro-stamp{display:flex;align-items:center;gap:24px;color:#7c8dc9;padding-right:32px}.intro-stamp>span{font-size:110px;line-height:1;font-weight:200}.intro-stamp small{font-size:9px;line-height:2;letter-spacing:.16em}.service-strip{display:flex;gap:25px;align-items:center;border-top:1px solid #dce3f6;padding:17px 0;color:#606d87;font-size:12px}.service-strip b{font-size:11px;font-weight:600;border:1px solid #c5cee8;border-radius:50%;padding:4px;margin-right:7px}.service-strip i{color:#a1abc3;font-style:normal}.catalog{padding-top:26px}.shop-notice{display:flex;align-items:center;gap:12px;font-size:12px;color:#77808f;margin-bottom:31px}.shop-notice>span{background:#edf0f4;color:#626b7c;border-radius:4px;padding:3px 8px;white-space:nowrap}.catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px}.catalog-heading h2{margin:0;font-size:24px}.catalog-heading p{color:var(--muted);font-size:12px;margin:5px 0 0}.search-form{display:flex;background:#fff;border:1px solid var(--line);border-radius:9px;overflow:hidden;width:300px}.search-form input{border:0;background:transparent;padding:11px 13px;min-width:0;width:100%;outline:none}.search-form button{border:0;background:none;color:#717b8f;padding:0 14px;white-space:nowrap;cursor:pointer}.category-tabs{display:flex;gap:9px;flex-wrap:wrap;margin:24px 0}.category-tabs a{padding:7px 16px;color:#7a8494;border-radius:7px;border:1px solid transparent;font-size:12px}.category-tabs .active{background:#e9edfc;border-color:#dce2ff;color:var(--primary);font-weight:600}.product-grid{gap:22px}.product-cover{height:164px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.tone-mint{background:#e6f2ec;color:#315e51}.tone-sand{background:#f3ede5;color:#977752}.tone-blue{background:#e9effd;color:#5177b1}.tone-violet{background:#eeebf7;color:#7661a0}.product-symbol{font-family:Georgia,serif;font-size:74px;font-weight:500;line-height:1}.cover-caption{position:absolute;bottom:15px;left:18px;font-size:9px;letter-spacing:.2em;opacity:.65}.cover-orbit{position:absolute;width:190px;height:190px;border:1px solid currentColor;opacity:.07;border-radius:50%;right:-40px;top:-70px}.delivery-tag{position:absolute;top:14px;right:14px;font-size:10px;background:#ffffffa6;color:#526259;border:1px solid #ffffff8a;padding:3px 9px;border-radius:5px}.product-body{padding:22px}.product-kind{font-size:10px;color:#8a92a0;margin-bottom:5px}.product-body h3{font-size:19px}.product-body h3 a{color:var(--text)}.product-description{font-size:12px;line-height:1.7;margin:4px 0 12px;min-height:40px}.price{font-size:27px;color:#1b263d;font-weight:700;font-variant-numeric:tabular-nums}.price small{font-size:16px;margin-right:3px;font-weight:500}.product-meta{margin:6px 0 17px}.stock{background:none;color:#6a8a77;padding:0;font-size:10px}.stock::before{content:'●';font-size:6px;margin-right:5px}.stock.out{background:none;color:#a28a74}.btn{font-size:13px;font-weight:600;min-height:42px;border-radius:8px}.product-card .btn{justify-content:space-between}.product-card{transition:box-shadow .2s,transform .2s}.product-card:hover{box-shadow:0 12px 32px #28375b0a;transform:translateY(-3px)}.help-banner{margin-top:40px;border:1px solid var(--line);border-radius:14px;padding:28px 32px;display:flex;align-items:center;justify-content:space-between;background:#fff;gap:20px}.help-banner h3{font-size:20px;margin:7px 0}.help-banner p{color:var(--muted);font-size:12px;margin:0}.help-banner .eyebrow{font-size:9px}.site-footer{padding:35px 0 50px;font-size:12px}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}.footer-grid>div:last-child{justify-self:end}.footer-grid .brand{font-size:15px}.footer-grid .brand-icon{width:25px;height:25px;font-size:20px}.text-copy{border:0;background:none;padding:0;color:var(--primary);cursor:pointer;text-align:left}.text-copy span{border:1px solid var(--line);border-radius:4px;font-size:10px;margin-left:7px;padding:2px 6px}.support-fab{position:fixed;right:22px;bottom:22px;z-index:25;background:#fff;color:#3b485f;border:1px solid var(--line);border-radius:999px;box-shadow:0 3px 22px #25365c12;padding:11px 17px;cursor:pointer}.support-fab span{font-size:12px;margin-left:5px}.contact-dialog{width:min(380px,calc(100% - 36px));border:1px solid var(--line);border-radius:18px;padding:26px;text-align:center;color:var(--text)}.contact-dialog::backdrop{background:#16213a65}.dialog-head{display:flex;justify-content:space-between;align-items:center;font-size:18px}.dialog-head button{border:0;background:transparent;color:var(--muted);font-size:27px;cursor:pointer}.support-qr{width:200px;height:200px;object-fit:contain;margin:20px auto}.contact-dialog .wechat-id{margin:14px 0}.toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%);background:#182539;color:#fff;padding:10px 20px;border-radius:8px;z-index:100}.clipboard-helper{position:fixed;left:-9999px;top:0}.breadcrumb{display:flex;gap:12px;padding:24px 0;color:#8b93a0;font-size:12px}.breadcrumb a{color:#6e7890}.purchase-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-bottom:60px;align-items:start}.purchase-panel h1{font-size:28px;margin:12px 0}.purchase-panel{padding:30px}.detail-cover{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:14px}.detail-cover img{height:300px;object-fit:contain}.detail-cover p{font-size:21px;margin:14px 0 3px}.details-copy{margin-top:20px}.details-copy h2{font-size:20px}.details-copy h3{font-size:15px;margin-top:26px}.description{white-space:normal;line-height:1.9;overflow-wrap:anywhere}.spec-label{font-size:12px;color:var(--muted);margin:22px 0 8px}.spec-chip{display:inline-block;border:1px solid #bac8ff;border-radius:6px;background:#f3f5ff;color:var(--primary);padding:7px 16px;font-size:12px;margin:0 5px 7px 0}.spec-chip.alt{background:#fff;border-color:var(--line);color:var(--muted)}.purchase-form{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}.form-label{font-size:12px;font-weight:600}.input,.select,.textarea{font-size:14px;border-color:#e1e5ec;border-radius:8px;min-height:43px}.help{font-size:11px;line-height:1.8}.agreement{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted);margin:0 0 18px}.payment-hint{text-align:center;color:#939baa;font-size:11px;margin-top:12px}.support-inline{font-size:12px;margin-top:18px}.auth-wrap{max-width:490px;margin:60px auto 75px}.auth-wrap h1{font-size:27px;margin-top:10px}.auth-wrap .panel{padding:32px}.auth-wrap .form-group{margin-top:22px}.auth-wrap .muted{font-size:13px}.purchase-panel .form-grid{grid-template-columns:80px 1fr;gap:15px}.captcha-row{grid-template-columns:minmax(40px,1fr) 125px}.captcha-image{width:125px;object-fit:contain}.empty-symbol{font-size:48px;color:#b7c2df}.empty h3{color:var(--text)}.empty p{font-size:13px}.order-summary{overflow-wrap:anywhere}.summary-item strong{font-size:15px}.section-head p{overflow-wrap:anywhere}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(max-width:900px){.intro-stamp{display:none}.purchase-grid{gap:20px}.purchase-panel{padding:22px}.purchase-panel .form-grid{grid-template-columns:1fr}.order-summary{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.container{width:calc(100% - 32px)}.nav{min-height:66px;gap:12px}.brand{font-size:15px;gap:7px}.brand-icon{width:28px;height:28px;font-size:23px}.nav-links{gap:12px;font-size:12px}.contact-trigger{display:none}.shop-intro{padding-top:30px}.shop-intro h1{font-size:28px}.shop-intro p{font-size:12px;line-height:1.9;margin-bottom:23px}.service-strip{gap:10px;font-size:9px;justify-content:space-between}.service-strip b{border:0;padding:0;margin-right:3px}.service-strip i{display:none}.catalog{padding-top:19px}.shop-notice{font-size:11px;margin-bottom:25px;align-items:start}.catalog-heading{align-items:start;flex-direction:column;gap:18px}.catalog-heading h2{font-size:22px}.search-form{width:100%}.category-tabs{margin:20px 0}.category-tabs a{padding:6px 12px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.product-cover{height:126px}.product-symbol{font-size:55px}.product-body{padding:14px 12px}.product-body h3{font-size:15px;line-height:1.6}.product-description{font-size:11px;min-height:56px}.delivery-tag{top:9px;right:9px;font-size:8px;padding:2px 6px}.cover-caption{left:12px;font-size:8px}.price{font-size:23px}.price small{font-size:13px}.product-meta{align-items:start;gap:4px;flex-direction:column;margin:7px 0 12px}.product-card .btn{font-size:11px;padding:8px 10px;min-height:36px}.help-banner{margin-top:25px;padding:23px;align-items:start;flex-direction:column}.help-banner h3{font-size:18px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-grid>div:last-child{justify-self:start}.site-footer{padding-bottom:85px}.support-fab{right:16px;bottom:16px;padding:10px 14px}.purchase-grid{grid-template-columns:1fr;padding-bottom:35px}.purchase-grid>section:first-child{display:contents}.purchase-panel{grid-row:2;padding:23px}.detail-cover{min-height:190px}.details-copy{grid-row:3;margin-top:0}.purchase-panel h1{font-size:24px}.purchase-panel .form-grid{grid-template-columns:80px 1fr}.purchase-panel .product-meta{flex-direction:row;align-items:center}.auth-wrap{margin:32px auto 45px}.auth-wrap .panel{padding:25px}.order-summary{grid-template-columns:1fr}.table-wrap{max-width:100%}.section-head{align-items:start;gap:10px;flex-wrap:wrap}.copy-row code{overflow-wrap:anywhere}.input{font-size:16px}.admin-topbar{height:auto;min-height:64px;gap:16px;padding:15px;flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.purchase-grid>section,.purchase-panel,.form-group{min-width:0}
@media(max-width:380px){.purchase-panel .form-grid{grid-template-columns:1fr}.captcha-row{grid-template-columns:minmax(0,1fr) 125px}.purchase-panel{padding:20px}.brand{font-size:14px}}

/* WeChat QR placeholder and shared upload preview */
.support-qr-placeholder{width:200px;max-width:100%;aspect-ratio:1;margin:20px auto;border:1px dashed #cdd5e6;border-radius:14px;background:#f7f9fc;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;padding:18px;text-align:center;color:#8590a4;box-sizing:border-box}.support-qr-placeholder strong{font-size:14px;font-weight:600;color:#63708a}.support-qr-placeholder>span:last-child{font-size:11px;line-height:1.8}.qr-space-mark{font-size:28px;color:#b5bfd1}.sidebar-support .support-qr{width:160px;height:160px;max-width:100%;object-fit:contain;margin:18px auto}.sidebar-support .support-qr-placeholder{width:160px;margin:18px auto;padding:12px}.sidebar-support .support-qr-placeholder strong{font-size:12px}.sidebar-support .support-qr-placeholder>span:last-child{font-size:10px}