:root{color-scheme:light;--paper:#f7f8f2;--ink:#182d29;--muted:#50605a;--green:#164e40;--mint:#d8eea5;--line:#c7d0c5;--white:#fff;--radius:14px}
*{box-sizing:border-box}html{scroll-padding-top:1rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:17px;line-height:1.65}a{color:inherit;text-underline-offset:.22em}img{max-width:100%}h1,h2,h3,p{margin:0 0 1rem}h1,h2,h3{line-height:1.12;letter-spacing:-.045em}h1{font-size:clamp(2.9rem,5.5vw,5.8rem);font-weight:600}h2{font-size:clamp(2.1rem,3.8vw,3.6rem);font-weight:600}h3{font-size:1.4rem}p{max-width:68ch}a:focus-visible,summary:focus-visible{outline:3px solid #975100;outline-offset:5px;border-radius:3px}.wrap{width:min(1200px,calc(100% - 3rem));margin-inline:auto}.site-header{display:flex;justify-content:space-between;align-items:center;gap:2rem;padding-block:1.5rem;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:.6rem;font-size:1.3rem;font-weight:700;letter-spacing:-.04em;text-decoration:none}.site-header nav,.site-footer nav{display:flex;gap:1.4rem;flex-wrap:wrap;font-size:.9rem}.site-header nav a{text-decoration:none}.site-header nav a:hover{text-decoration:underline}.hero{display:grid;grid-template-columns:1.45fr 1fr;align-items:center;gap:4rem;padding-block:6rem}.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.13em;line-height:1.6;color:var(--green);margin-bottom:1.2rem}.lead{font-size:1.22rem;line-height:1.6;margin-top:1.8rem}.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin:2rem 0 1rem}.button{display:inline-flex;align-items:center;justify-content:center;gap:1.5rem;padding:.85rem 1.2rem;border:1px solid var(--ink);border-radius:6px;text-decoration:none;font-size:.9rem;font-weight:700}.button:hover{background:#e3eadb}.button.primary{background:var(--green);color:var(--white)}.button.primary:hover{background:#0f3c31}.fine{font-size:.82rem;color:var(--muted)}.workflow-sheet{background:var(--green);color:#f6f9ee;border-radius:var(--radius);padding:2rem;box-shadow:12px 12px 0 #dfe6d5;transform:rotate(1deg)}.sheet-top{display:flex;justify-content:space-between;gap:1rem;letter-spacing:.1em;font-size:.62rem;border-bottom:1px solid #668b74;padding-bottom:1.2rem;margin-bottom:2rem}.workflow-sheet h2{font-size:2.5rem}.mini-flow{padding:0;list-style:none;margin:1.7rem 0}.mini-flow li{padding:.72rem 0;border-bottom:1px solid #668b74;font-size:.95rem}.mini-flow span{display:inline-block;width:2rem;color:var(--mint);font-size:.75rem}.sheet-foot{font-size:.8rem;color:var(--mint);margin:0}.section{padding-block:5rem}.band{background:#edf1e5;border-block:1px solid var(--line)}.intro{color:var(--muted);margin:1.5rem 0 2.7rem}.steps{display:grid;grid-template-columns:repeat(5,1fr);list-style:none;gap:1.5rem;padding:0;margin:3rem 0 0}.steps p{font-size:.92rem;color:var(--muted)}.steps h3{font-size:1.12rem;letter-spacing:-.02em;line-height:1.3}.step-num{display:block;border-top:1px solid var(--line);padding-top:1rem;margin-bottom:1.5rem;color:var(--green);font-size:.8rem}.example-grid{display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}.recommendation{background:var(--white);padding:2.5rem;border:1px solid var(--line);border-radius:var(--radius)}.recommendation h3{font-size:1.9rem}.recommendation dl{margin:1.5rem 0}.recommendation dt{font-size:.75rem;font-weight:700;margin-top:1rem;color:var(--green)}.recommendation dd{margin:0;font-size:.95rem}.label{display:inline-block;background:#e4ecd8;padding:.35rem .7rem;font-size:.73rem;border-radius:3px}.plans{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.plan{background:var(--white);border:1px solid var(--line);padding:2.5rem;border-radius:var(--radius);display:flex;flex-direction:column}.plan.featured{border:2px solid var(--green);background:#f9fcf4}.plan h3{font-size:2.1rem;margin-bottom:.4rem}.product-name{font-size:.85rem;color:var(--muted)}.price{font-size:3.2rem;font-weight:700;letter-spacing:-.05em;margin-top:1rem;line-height:1.2}.price span{display:block;font-size:.78rem;font-weight:400;letter-spacing:0;margin-top:.4rem}.plan>p,.plan li{font-size:.95rem}.plan .price{font-size:3.2rem}.plan ul{padding-left:1.2rem}.plan li{margin-bottom:.35rem}.availability{margin-top:auto;padding-top:1.5rem;color:var(--muted)}.text-link{font-weight:700;font-size:.92rem}.metrics{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding-block:1rem}.metrics div{border-top:1px solid var(--line);padding-top:.5rem}.metrics strong,.metrics span{display:block}.metrics strong{font-size:2rem;line-height:1.3}.metrics span{font-size:.8rem;color:var(--muted)}.requirements{display:grid;grid-template-columns:1fr 1fr;gap:0 5rem}.requirements>.eyebrow{grid-column:1/-1}.requirements div p{color:var(--muted)}.faq-wrap{display:grid;grid-template-columns:1fr 1.4fr;gap:3rem}details{border-top:1px solid var(--line);padding:1.2rem 0}details:last-child{border-bottom:1px solid var(--line)}summary{cursor:pointer;font-weight:700;font-size:1rem}details p{margin:1rem 0 0;color:var(--muted);font-size:.95rem}.contact{max-width:800px;text-align:center}.contact p{margin-inline:auto}.contact-email{display:inline-block;font-size:clamp(1.2rem,3vw,2rem);font-weight:700;margin:.5rem 0 1.5rem;overflow-wrap:anywhere}.selectable{user-select:all}.site-footer{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:2rem;border-top:1px solid var(--line)}.site-footer p{font-size:.8rem;margin:0;color:var(--muted)}.skip{position:absolute;left:1rem;top:-5rem;background:var(--white);padding:.7rem;z-index:10}.skip:focus{top:1rem}.legal{max-width:800px}.legal h1{font-size:3rem;margin-bottom:2rem}.legal h2{font-size:1.5rem;letter-spacing:-.02em;margin-top:2.5rem}.legal .button{margin-top:1rem}.error-number{font-size:5rem;line-height:1;color:var(--green)}
.site-header nav{align-items:center}.site-header nav .language-switch{display:inline-flex;align-items:center;min-height:36px;padding:.2rem .7rem;border:1px solid var(--line);border-radius:6px;font-weight:700;color:var(--green);white-space:nowrap}.site-header nav .language-switch:hover{background:#e3eadb;text-decoration:none}html:lang(zh-CN) body{font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}html:lang(zh-CN) h1,html:lang(zh-CN) h2,html:lang(zh-CN) h3{letter-spacing:0;line-height:1.3}html:lang(zh-CN) .eyebrow{letter-spacing:.08em}html:lang(zh-CN) .hero h1{font-size:clamp(2rem,4.6vw,4.8rem)}html:lang(zh-CN) .workflow-sheet h2{font-size:clamp(1.8rem,3vw,2.5rem)}
@media(max-width:1000px){.hero{gap:2.5rem}.steps{grid-template-columns:repeat(3,1fr)}.example-grid,.requirements{gap:2.5rem}.site-footer{flex-wrap:wrap}}
@media(max-width:760px){.wrap{width:calc(100% - 2rem)}.site-header{align-items:flex-start;flex-direction:column;gap:1rem}.site-header nav{gap:.55rem 1rem}.site-header nav a{padding-block:.3rem}.hero{grid-template-columns:1fr;padding-block:3.5rem;gap:2.5rem}.workflow-sheet{transform:none;box-shadow:6px 6px 0 #dfe6d5;margin-right:6px}.section{padding-block:3.5rem}.steps{grid-template-columns:1fr 1fr;gap:1rem}.example-grid,.plans,.requirements,.faq-wrap{grid-template-columns:1fr}.recommendation,.plan{padding:1.5rem}.requirements{gap:0}.faq-wrap{gap:1rem}.site-footer{align-items:flex-start;flex-direction:column;gap:1rem}.legal h1{font-size:2.4rem}}
@media(max-width:380px){.steps{grid-template-columns:1fr}.button{width:100%;padding-inline:.7rem}.workflow-sheet{padding:1.4rem}h1{font-size:2.7rem}.hero{overflow-wrap:break-word}}

/* Checkout controls */
[hidden]{display:none!important}button{font:inherit;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}#checkout-status,#delivery-status{min-height:1.6em}#saved-orders{overflow-wrap:anywhere}