:root{--ink:#333333;--muted:#555b63;--paper:#ffffff;--white:#fff;--line:#e1e6ed;--navy:#08365a;--accent:#ce4937;--pale:#f3f6fa;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;font-size:16px}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #008fce;outline-offset:4px}button,input{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin:0}h1{font-size:clamp(34px,4vw,54px);letter-spacing:-.035em;line-height:1.2;font-weight:650}h2{font-size:28px;line-height:1.35;font-weight:650}h3{font-size:26px;font-weight:650}p{color:var(--muted)}.container{width:min(var(--max),calc(100% - 80px));margin:auto}.skip{position:absolute;left:20px;top:-80px;background:white;z-index:9;padding:12px}.skip:focus{top:8px}header{background:var(--paper);border-bottom:1px solid var(--line)}.header{min-height:94px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand{display:flex;gap:12px;align-items:center;font-size:25px;font-weight:700;letter-spacing:.08em;white-space:nowrap}.brand small{display:block;font-size:10px;color:var(--muted);font-weight:500;letter-spacing:.18em;line-height:1.3}.mark{display:block;width:60px;height:60px;object-fit:contain;flex:0 0 60px;background:#fff;border-radius:3px}.header nav{display:flex;align-items:center;gap:28px;font-size:14px}.header nav a{padding:32px 0;border-bottom:2px solid transparent;white-space:nowrap}.header nav a[aria-current]{color:var(--navy);font-weight:700;border-color:var(--accent)}.hero{padding:76px 0 68px;background:linear-gradient(125deg,#ffffff 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p{font-size:14px;margin-top:10px;flex-grow:1}.card-bottom{margin-top:28px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--accent);font-size:13px}.contact-strip{display:grid;grid-template-columns:1.3fr 1fr;gap:80px;align-items:center}.contact-strip p{margin-top:14px}.contact-strip>div:last-child{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.big-phone{font-size:clamp(24px,3vw,36px);font-weight:600;letter-spacing:.01em;color:var(--navy)}footer{background:var(--navy);color:#ffffff;padding:40px 0 20px}.footgrid{display:grid;grid-template-columns:1fr 1.3fr;gap:48px}.footgrid strong{font-size:24px;letter-spacing:.06em}.footgrid p,.footgrid small{color:#d0deeb;font-size:13px;line-height:1.9;margin:6px 0}.footgrid a:hover{color:white;text-decoration:underline}.footnote{border-top:1px solid #416481;margin-top:26px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#d0deeb}.crumbs{font-size:12px;display:flex;gap:13px;color:var(--muted);padding-top:24px}.top{padding-top:36px;min-height:50vh}.searchbox{margin-top:36px;display:flex;align-items:center;border:1px solid #b8c8d8;background:white;border-radius:3px;padding:12px 18px;gap:22px}.searchbox label{font-size:13px;font-weight:650;white-space:nowrap}.searchbox input{border:none;outline:none;background:transparent;min-width:0;flex:1;padding:6px 0;font-size:15px;color:var(--ink)}.searchhint{font-size:12px;color:var(--muted);white-space:nowrap}.filters{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.filters button{background:transparent;border:1px solid var(--line);padding:8px 12px;color:var(--muted);border-radius:3px;font-size:12px}.filters button[aria-pressed=true]{background:var(--navy);color:white;border-color:var(--navy)}.result-count{font-size:12px;margin:22px 0 12px}.table-wrap{overflow-x:auto;border:1px solid var(--line);background:white}.catalog{width:100%;border-collapse:collapse;min-width:700px;text-align:left;font-size:14px}.catalog th{background:#edf1f6;font-size:12px;font-weight:600;color:var(--muted);padding:15px 22px}.catalog td{padding:18px 22px;border-top:1px solid var(--line)}.catalog .model{font-size:16px;font-weight:650;color:var(--navy)}.catalog tbody tr:hover{background:#f7f9fc}.detail{font-size:12px;white-space:nowrap;color:var(--accent)}.empty{padding:32px;text-align:center}.product-head{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:42px}.product-head .lead{margin-top:16px}.reference{margin-top:22px;font-size:13px}.reference strong{font-size:17px;margin-left:12px;color:var(--navy)}.product-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}.spec-panel{background:white;border:1px solid var(--line)}.spec-panel h2{font-size:20px;padding:23px 26px;border-bottom:1px solid var(--line)}.specs{border-collapse:collapse;width:100%;font-size:14px}.specs th{width:35%;font-weight:500;color:var(--muted);text-align:left;background:#f7f9fc}.specs th,.specs td{padding:15px 26px;border-bottom:1px solid #e5eaf0;overflow-wrap:anywhere}.specs tr:last-child th,.specs tr:last-child td{border:none}.contact-card{background:var(--pale);padding:28px;border-top:3px solid var(--navy)}.contact-card h2{font-size:22px}.contact-card p{font-size:13px;margin:18px 0}.contact-card a{display:block}.contact-card .phone{font-size:23px;color:var(--navy);font-weight:600}.contact-card .email{font-size:13px;margin-top:8px;overflow-wrap:anywhere}.contact-card hr{border:0;border-top:1px solid #d2deeb;margin-top:24px}.selection{padding:28px 0}.selection h2{font-size:21px;margin-bottom:14px}.selection p{line-height:1.95;font-size:14px}.related-title{margin-top:28px}.related-title h2{font-size:24px}.prose{max-width:880px;margin-left:auto;margin-right:auto;padding-bottom:100px}.prose>p:not(.eyebrow){margin-top:24px;line-height:2}.contact-grid{display:grid;grid-template-columns:1fr 1fr;margin-top:42px;border:1px solid var(--line);gap:1px;background:var(--line)}.contact-grid article{padding:32px;background:#fff}.contact-grid article>span{display:block;color:var(--muted);font-size:12px;margin-bottom:20px}.contact-grid p{font-size:16px;color:var(--ink)}.contact-email{font-size:24px;color:var(--navy);overflow-wrap:anywhere}.contact-grid+p{margin-top:24px;font-size:13px}[hidden]{display:none!important}@media(max-width:1000px){.container{width:calc(100% - 48px)}.header{gap:20px}.header nav{gap:16px;font-size:12px}.brand{font-size:22px}.hero-grid{gap:42px}.hero-panel{padding:22px}.hero-panel strong,.hero-panel b{font-size:20px}.hero{padding:56px 0}.hero-facts{gap:18px}.hero-facts span{display:flex;flex-direction:column}.product-layout{grid-template-columns:minmax(0,1fr) 260px;gap:22px}.contact-card{padding:22px}}@media(max-width:720px){.container{width:calc(100% - 36px)}.header{display:block;padding-top:18px;min-height:0}.brand{font-size:23px}.header nav{overflow-x:auto;gap:24px;margin-top:12px}.header nav a{padding:13px 0;font-size:12px}.hero{padding:38px 0 44px}.hero-grid{grid-template-columns:1fr;gap:34px}.hero h1{font-size:42px}.hero .lead{font-size:15px}.actions{gap:20px}.hero-facts{margin-top:28px;gap:30px}.hero-facts span{display:block}.hero-facts b{font-size:21px}.hero-panel{box-shadow:7px 8px 0 #e5edf6}.hero-panel strong,.hero-panel b{font-size:23px}.section{padding-top:42px;padding-bottom:42px}.section-head{align-items:flex-start}.section-head>p{display:none}h2{font-size:24px}.category-grid{grid-template-columns:repeat(2,1fr)}.cat-link{padding:20px 16px}.cat-link strong{font-size:15px}.cards{grid-template-columns:1fr;gap:14px}.product-card{padding:24px}.product-card .eyebrow{margin-bottom:10px}.card-bottom{margin-top:20px}.contact-strip{grid-template-columns:1fr;gap:24px}.contact-strip h2{font-size:25px}.big-phone{font-size:30px}.footgrid{grid-template-columns:1fr;gap:20px}.footnote{display:block;line-height:2}.footnote span{display:block}.top{padding-top:28px}.searchbox{padding:12px;gap:12px;flex-wrap:wrap}.searchbox label{width:100%}.searchbox input{font-size:14px;width:100%}.searchhint{display:none}.product-head{display:block;margin-bottom:30px}.product-head .button{margin-top:24px}.product-layout{grid-template-columns:1fr}.spec-panel h2{padding:20px}.specs th,.specs td{padding:13px 16px;font-size:13px}.specs th{width:37%}.contact-grid{grid-template-columns:1fr}.contact-grid article{padding:26px}.lead{font-size:16px}.contact-email{font-size:22px}.catalog td,.catalog th{padding:15px}.catalog{min-width:630px}.filters{gap:6px}.filters button{padding:7px 9px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media(max-width:720px){.hero-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.hero-facts span{display:block;white-space:nowrap;font-size:11px}.hero-facts b{display:block;margin:0 0 3px;font-size:22px}}

/* Brand palette follows the supplied WeChat article: white, navy, pale blue and red accents. */
.brand,h1,h3,.text-link{color:var(--navy)}
.section-head h2,.selection h2,.related-title h2{border-left:4px solid var(--accent);padding-left:16px}
.catalog th{color:var(--navy)}
.spec-panel h2{background:#edf1f6;color:var(--navy);border-left:4px solid var(--accent)}
.card-bottom,.detail{color:var(--navy)}
.hero-panel>a:hover b{color:#9cdcff}
@media(max-width:720px){.mark{width:52px;height:52px;flex-basis:52px}}

/* Mainland contact and verified PTP statement */
.ptp-note{margin-top:20px;padding-left:14px;border-left:3px solid var(--accent);font-size:13px;color:var(--navy);line-height:1.8}
.ptp-note a{font-weight:600}.ptp-note small{display:block;font-size:12px;color:var(--muted)}
.footgrid{grid-template-columns:1fr 1.25fr 190px;gap:36px}
.footgrid .official-account{margin-top:18px}.footgrid .official-account strong{font-size:14px;letter-spacing:0}
.wechat-contact{text-align:center}.wechat-contact>a{display:inline-block;background:#fff;border-radius:4px;padding:6px;line-height:0}
.wechat-contact img{display:block;width:164px;height:auto;max-width:100%}
.wechat-contact p{color:#fff;margin:8px 0 0}.wechat-contact small{font-size:11px}
@media(max-width:1000px){.footgrid{grid-template-columns:1fr 1.2fr;gap:28px}.wechat-contact{grid-column:1/-1;text-align:left}}
@media(max-width:720px){.footgrid{grid-template-columns:1fr;gap:24px}.wechat-contact{grid-column:auto}.ptp-note{font-size:12px}}

.ptp-badge{display:block;width:fit-content;margin-top:9px;padding:3px 8px;border:1px solid #d2deeb;border-radius:3px;background:#edf1f6;color:var(--navy);font-size:11px;font-weight:600;line-height:1.6}.product-head .ptp-badge{font-size:13px;margin-top:16px}

/* Footer identity and independent PTP column */
.footgrid>div>strong{font-size:20px;letter-spacing:.03em}
.footgrid .official-account{display:flex;align-items:center;gap:8px;font-size:13px}
.footgrid .official-account strong{font-size:13px;font-weight:500}
.wechat-icon{width:13px;height:13px;flex:0 0 13px;color:#e5f5ee}
.ptp-cell{white-space:nowrap;color:var(--navy);font-size:12px;font-weight:600}