:root{--pink:#fe2c55;--orange:#ff7548;--ink:#0c0c10;--muted:#60606e;--line:#edeff5;--surface:#fff;--background:#f9fafc}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--background);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.5}
button,input{font:inherit}
button{cursor:pointer}
a{color:inherit}
.container{width:min(100%,1280px);margin:auto;padding:0 24px}
.main-header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.navbar{height:65px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.logo{display:inline-flex;align-items:center;gap:12px;white-space:nowrap;font-size:20px;font-weight:750;text-decoration:none}
.logo img{display:block;width:36px;height:36px;flex:none}
.nav-menu{display:flex;align-items:center;gap:32px;margin:0;padding:0;list-style:none}
.nav-menu a{text-decoration:none;color:var(--muted);font-size:15px;font-weight:600;transition:color .2s}
.nav-menu a:hover,.nav-menu a:focus-visible{color:var(--pink)}
.mobile-menu-btn{display:none;border:0;background:none;padding:8px}
.mobile-menu-btn span{display:block;width:24px;height:2px;margin:5px 0;background:var(--ink);transition:transform .2s,opacity .2s}
.hero{padding:80px 0;background:linear-gradient(135deg,#fff,#f5f6f8);text-align:center}
.hero h1{margin:0 0 20px;font-size:52px;font-weight:800;letter-spacing:-.035em;line-height:1.25;background:linear-gradient(120deg,#0c0c10,#60606e);background-clip:text;-webkit-background-clip:text;color:transparent}
.hero p{max-width:640px;margin:auto;color:var(--muted);font-size:20px}
.section{padding:80px 0;border-bottom:1px solid var(--line);scroll-margin-top:64px}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{margin:0 0 16px;font-size:36px;line-height:1.3}
.section-header p{margin:0;color:var(--muted);font-size:18px}
.filter-bar{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.filter-btn{min-height:47px;padding:10px 28px;background:#fff;border:1px solid #eaecf0;border-radius:48px;color:var(--muted);font-size:15px;font-weight:600;transition:background .2s,color .2s,border-color .2s}
.filter-btn:hover,.filter-btn.active{background:var(--pink);border-color:var(--pink);color:#fff}
.products-table-wrapper{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:28px;box-shadow:0 4px 12px rgba(0,0,0,.02)}
.products-table{width:100%;border-collapse:collapse}
.products-table th{padding:20px 24px;background:var(--background);border-bottom:1px solid var(--line);text-align:left;font-size:16px}
.products-table td{padding:20px 24px;border-bottom:1px solid var(--line);color:var(--muted)}
.products-table tr:last-child td{border-bottom:0}
.products-table th:first-child,.products-table td:first-child{width:60%}
.products-table td.product-title{color:var(--ink);font-weight:650}
.product-title a,.related-card h3 a{color:inherit;text-decoration:none}
.product-title a:hover,.related-card h3 a:hover{color:var(--pink);text-decoration:underline}
.stock-badge{display:inline-block;padding:5px 12px;background:#e8f5e9;border-radius:20px;color:#2e7d32;font-size:13px;font-weight:600}
.products-table .price{color:var(--muted);font-size:18px;font-weight:750;white-space:nowrap}
.buy-link,.purchase-submit{display:inline-flex;align-items:center;justify-content:center;padding:11px 24px;border:0;border-radius:48px;background:linear-gradient(135deg,var(--pink),var(--orange));color:#fff;text-decoration:none;font-size:14px;font-weight:700;transition:transform .2s,box-shadow .2s}
.buy-link:hover,.purchase-submit:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(254,44,85,.28);color:#fff}
.empty-filter{margin:0;padding:32px;text-align:center;color:var(--muted)}
.features-grid,.process-grid,.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.feature-card,.process-card,.guarantee-card{min-height:226px;padding:32px 20px;background:#fff;border:1px solid var(--line);border-radius:28px;text-align:center;transition:box-shadow .2s,transform .2s}
.feature-card:hover,.process-card:hover,.guarantee-card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(0,0,0,.04)}
.feature-icon,.process-icon{display:grid;place-items:center;width:64px;height:64px;margin:0 auto 20px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--orange));color:#fff;font-size:28px;font-weight:700}
.feature-card h3,.process-card h3,.guarantee-card h3{margin:0 0 12px;font-size:21px}
.feature-card p,.process-card p,.guarantee-card p{margin:0;color:var(--muted);line-height:1.7}
.guarantee-card{min-height:158px}
.faq-list{max-width:800px;margin:auto}
.faq-item{margin-bottom:16px;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#fff}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;padding:20px 24px;border:0;background:none;text-align:left;color:var(--ink);font-size:18px;font-weight:650}
.faq-question:hover{background:var(--background)}
.faq-question .arrow{color:var(--pink);font-size:13px;transition:transform .2s}
.faq-item.active .arrow{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;visibility:hidden;transition:max-height .3s,visibility .3s}
.faq-item.active .faq-answer{max-height:600px;visibility:visible}
.faq-answer p{margin:0;padding:0 24px 24px;color:var(--muted);line-height:1.7}
.main-footer{padding:32px 0;background:#fff;border-top:1px solid var(--line);color:#8b8b9c;text-align:center;font-size:14px}
.main-footer a{color:inherit}
.breadcrumb{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:30px 0;color:var(--muted);font-size:14px}
.breadcrumb a{color:var(--pink);text-decoration:none}
.breadcrumb span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(70vw,650px)}
.product-d-detail{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-bottom:60px;padding:30px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 4px 12px rgba(0,0,0,.02)}
.product-d-title{margin:0 0 22px;font-size:30px;line-height:1.35}
.product-d-price{margin-bottom:25px;color:var(--pink);font-size:36px;font-weight:750}
.product-d-specs{margin:0}
.spec-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}
.spec-row:last-child{border:0}
.spec-row dt{flex:0 0 130px;color:var(--muted);font-weight:550}
.spec-row dd{margin:0;font-weight:650}
.spec-row .highlight{color:#22c55e}
.option-title{margin:0 0 25px;font-size:21px}
.form-group{margin-bottom:25px}
.form-label{display:block;margin-bottom:10px;color:var(--muted);font-size:15px;font-weight:600}
.required{color:var(--pink)}
.email-input{width:100%;height:46px;padding:10px 15px;border:1px solid var(--line);border-radius:12px;outline:0;color:var(--ink)}
.email-input:focus,.quantity-selector:focus-within{border-color:var(--pink);box-shadow:0 0 0 3px rgba(254,44,85,.1)}
.email-hint{margin:8px 0 0;color:var(--muted);font-size:13px}
.quantity-selector{display:flex;width:150px;height:42px;overflow:hidden;border:1px solid var(--line);border-radius:12px}
.quantity-btn{width:40px;border:0;background:#fff0f3;font-size:20px}
.quantity-btn:hover{color:var(--pink)}
.quantity-input{min-width:0;width:70px;border:0;outline:0;text-align:center;appearance:textfield}
.quantity-input::-webkit-inner-spin-button,.quantity-input::-webkit-outer-spin-button{appearance:none;margin:0}
.payment-section{margin:0 0 20px;padding:0;border:0}
.payment-methods{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.payment-method{position:relative;display:flex;min-height:104px;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:10px 4px;border:1px solid var(--line);border-radius:12px;cursor:pointer;color:var(--muted);font-size:13px;font-weight:650;text-align:center}
.payment-method:has(input:checked){border-color:var(--pink);background:#fff0f3;color:var(--pink)}
.payment-method input{position:absolute;inset:0;opacity:0;cursor:pointer}
.payment-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:9px;background:#42a08b;color:#fff;font-size:25px;font-weight:750}
.payment-help,.payment-unavailable{margin:12px 0 0;color:var(--muted);font-size:13px}
.payment-unavailable{padding:14px;border-radius:12px;background:#fff0f3;color:#a92845}
.purchase-submit:disabled{cursor:not-allowed;opacity:.55;transform:none;box-shadow:none}
.total-box{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:20px 0 24px;padding:18px 16px;border-radius:14px;background:linear-gradient(110deg,#fff0f3,#fff5f1);color:var(--pink);font-weight:650}
.total-box strong{font-size:28px}
.purchase-submit{width:100%;min-height:50px;font-size:16px}
.checkout-notice{margin:12px 0 0;color:var(--muted);font-size:13px;line-height:1.6}
.description-section{padding:30px;background:#fff;border:1px solid var(--line);border-radius:24px}
.description-section h2{margin:0 0 20px;font-size:25px}
.description-content{color:var(--muted);line-height:1.85}
.related-section{padding:70px 0 80px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{display:flex;flex-direction:column;gap:16px;padding:24px;border:1px solid var(--line);border-radius:22px;background:#fff}
.related-card h3{margin:0;font-size:18px;line-height:1.5}
.related-card p{flex:1;margin:0;color:var(--muted);font-size:14px}
.related-card strong{color:var(--pink);font-size:22px}
.related-card .buy-link{align-self:flex-start}
.order-page{padding-top:80px;padding-bottom:100px}
.order-card{max-width:640px;margin:auto;padding:40px;border:1px solid var(--line);border-radius:24px;background:#fff;text-align:center}
.order-mark{display:grid;place-items:center;width:64px;height:64px;margin:auto;border-radius:50%;background:#e8f5e9;color:#2e7d32;font-size:32px}
.order-card h1{margin:20px 0 10px}
.order-card>p{color:var(--muted)}
.order-card dl{margin:30px 0;text-align:left}
.order-card dl div{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid var(--line)}
.order-card dt{color:var(--muted)}
.order-card dd{margin:0;text-align:right;overflow-wrap:anywhere}
.order-card .order-warning{padding:16px;border-radius:12px;background:#fff0f3;color:#a92845;text-align:left}
.order-card .order-review{padding:16px;border-radius:12px;background:#edf7ff;color:#175d92;text-align:left}
.payment-detail{margin:24px 0;padding:24px;border-radius:18px;background:#f8fafc;text-align:center}
.payment-detail>p:first-child{margin:0 0 18px}.payment-detail>p:first-child strong{color:var(--pink);font-size:24px}
.payment-qr{display:grid;place-items:center;min-height:220px;margin:auto;width:220px;background:#fff}
.payment-qr img,.payment-qr canvas{max-width:100%;height:auto}
.payment-network,.payment-note{color:var(--muted);font-size:14px;line-height:1.7}
.payment-address{display:flex;align-items:center;gap:8px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff;text-align:left}
.payment-address span{flex:1;min-width:0;overflow-wrap:anywhere;font-size:14px}
.payment-address button{flex:none;padding:8px 12px;border:0;border-radius:8px;background:#fff0f3;color:var(--pink);font-weight:650}
.payment-proof-form{margin-top:24px;text-align:left}.payment-proof-form .purchase-submit{margin-top:12px}.payment-proof-form small{display:block;margin-top:8px;color:var(--muted);line-height:1.5}
.order-lookup-form{margin:30px 0;text-align:left}.order-lookup-form .purchase-submit{margin-top:18px}
@media(max-width:1000px){.nav-menu{gap:16px}.features-grid,.process-grid,.guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.container{padding:0 16px}.navbar{height:64px}.logo{font-size:17px}.mobile-menu-btn{display:block}.nav-menu{position:absolute;top:64px;left:0;right:0;display:none;flex-direction:column;gap:0;padding:12px 0 20px;background:#fff;box-shadow:0 8px 16px rgba(0,0,0,.06)}.nav-menu.open{display:flex}.nav-menu a{display:block;width:100%;padding:10px 24px;text-align:center}.hero{padding:60px 0}.hero h1{font-size:36px}.hero p{font-size:17px}.section{padding:60px 0}.section-header{margin-bottom:36px}.section-header h2{font-size:28px}.section-header p{font-size:16px}.filter-bar{gap:8px;margin-bottom:30px}.filter-btn{min-height:38px;padding:7px 15px;font-size:13px}.products-table thead{display:none}.products-table,.products-table tbody,.products-table tr,.products-table td{display:block;width:100%!important}.products-table tr{padding:16px;border-bottom:1px solid var(--line)}.products-table td{display:flex;justify-content:space-between;gap:16px;padding:7px 0;border:0;text-align:right}.products-table td:before{content:attr(data-label);flex:0 0 72px;text-align:left;color:var(--muted);font-weight:500}.products-table td.product-title{text-align:left}.product-d-detail{grid-template-columns:1fr;gap:24px;padding:24px}.product-d-title{font-size:25px}.product-d-price{font-size:30px}.related-grid{grid-template-columns:1fr}.breadcrumb span:last-child{max-width:65vw}}
@media(max-width:540px){.features-grid,.process-grid,.guarantee-grid{grid-template-columns:1fr}.feature-card,.process-card,.guarantee-card{min-height:0}.payment-methods{grid-template-columns:repeat(2,minmax(0,1fr))}.payment-method:last-child{grid-column:auto}.order-card{padding:25px}.order-page{padding-top:40px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}