html{scroll-padding-top:100px}.brand-wordmark{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;white-space:nowrap;text-decoration:none;color:#f6fbff}.brand-wordmark b{color:#7df6de}.brand-symbol{display:flex;align-items:center;justify-content:center;width:39px;height:34px;border:2px solid #80f6de;border-radius:9px;font-size:23px;color:#fff}.brand-symbol span{color:#80f6de;font-size:21px}header{gap:18px;flex-wrap:wrap}header nav{gap:19px;flex:1;justify-content:center}.replacement-steps{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}.replacement-steps article{border-top:1px solid #3f6a70;padding-top:20px}.step-number{color:#80f6de;font:13px monospace;letter-spacing:3px}.replacement-steps h3{font-size:21px;margin:12px 0}.replacement-steps p{color:#b4c6d3;font-size:15px;line-height:1.8}.service .warranty strong{color:#7df6de}.document-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.document-card{position:relative;display:block;background:#101f30;padding:26px 20px;border:1px solid #2d465c;border-radius:10px;text-decoration:none;transition:transform .25s,border-color .25s}.document-card:hover{transform:translateY(-5px);border-color:#83f5dd}.document-card h3{font-size:21px;margin:22px 0 15px}.document-card>span:last-of-type{font-size:13px;color:#b6c8d6}.doc-type{font:12px monospace;letter-spacing:2px;color:#7ff3dc}.document-card>b{position:absolute;inset-inline-end:15px;top:18px;color:#7ff3dc}.catalog-links{display:flex;gap:24px;flex-wrap:wrap;padding:22px 0}.catalog-links a{color:#83e8da}.report-library{border:1px solid #30435b;border-radius:8px;padding:22px;background:#0b1421}.report-library p{color:#b8c6d5;max-width:850px;line-height:1.8;font-size:14px}.report-library>span{display:block;font:12px monospace;color:#8197ab}.report-library div{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px}.report-library a{font-size:14px;color:#9ee6dd}.footer-brand{font-size:23px;font-weight:700}.company-legal{flex-basis:100%;color:#8da4b8;font-size:12px}.spec-download{display:block;margin-top:18px}.product-details dl div{padding:10px 0}.product-details dd{font-size:15px}.service h2 em{color:#83f4dd;font-style:normal}#documents{background:linear-gradient(180deg,#080f1b,#0d1827)}@media(max-width:1000px){header nav{order:3;flex-basis:100%}.document-grid{grid-template-columns:repeat(2,1fr)}header .header-actions{margin-inline-start:auto}.replacement-steps{grid-template-columns:1fr}.brand-wordmark{font-size:17px}}@media(max-width:600px){.document-grid{grid-template-columns:1fr 1fr;gap:10px}.document-card{padding:19px 12px}.document-card h3{font-size:16px}.brand-wordmark{font-size:15px}.brand-symbol{width:30px;height:29px}.header-actions .button{font-size:12px;padding:10px}.header-actions .language{font-size:14px}header nav{justify-content:space-between;gap:8px;font-size:13px}.report-library{padding:17px}.catalog-links{gap:14px}.fold-product .mega-spec{pointer-events:none}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.document-card{transition:none}}
.language-select{background:#101e30;color:#f1f7ff;border:1px solid #405269;border-radius:22px;padding:9px 14px;cursor:pointer;font:inherit;min-width:100px}.language-select option{background:#101e30;color:white}html[lang="zh-CN"] body{font-family:system-ui,"Microsoft YaHei","PingFang SC",sans-serif}html[lang="zh-CN"] h1{letter-spacing:-.035em;line-height:1.2}html[lang="zh-CN"] h2{line-height:1.3}html[lang="zh-CN"] .hero h1{font-size:clamp(40px,4.7vw,78px)}
@media(max-width:900px){html[lang="zh-CN"] .hero{grid-template-columns:1fr}html[lang="zh-CN"] .hero h1{font-size:clamp(34px,6vw,54px)}html[lang="zh-CN"] .hero-copy{max-width:100%}}
.moq-note{display:block;margin-top:16px;padding:10px 16px;border:1px solid #345763;border-radius:8px;color:#86f4dd;font-weight:700;width:fit-content}.hero-trust .moq-note{margin:0;padding:0;border:0}.whatsapp-number{display:block;margin-top:18px;color:#8cebd9;font-size:19px}.contact-note a.whatsapp{display:inline-flex;align-items:center;justify-content:center;background:#81f5d9;color:#082323;text-decoration:none;padding:15px 22px;border-radius:8px}#send-whatsapp{display:flex;margin-top:20px;justify-content:center}html[dir="rtl"] .contact-note p{unicode-bidi:plaintext}