:root{--red:#d9272e;--red-dark:#a90f18;--ink:#1d252c;--muted:#6e7479;--line:#e8eaec;--soft:#f5f6f7;--blue:#087fae;--max:720px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#eef0f2;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;letter-spacing:0}.site-shell{max-width:var(--max);min-height:100vh;margin:auto;background:#fff;box-shadow:0 0 30px #1e293b14}.site-header{position:sticky;top:0;z-index:30;min-height:70px;padding:11px 18px;display:flex;align-items:center;justify-content:space-between;background:#fffffff2;border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.brand{display:flex;gap:10px;align-items:center;color:inherit;text-decoration:none;min-width:0}.brand-mark{display:grid;place-items:center;width:42px;height:42px;flex:0 0 auto;background:linear-gradient(135deg,var(--red) 50%,#174d68 50%);color:#fff;font-size:22px;font-weight:800}.brand strong,.brand small{display:block}.brand strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:270px}.brand small{margin-top:3px;color:var(--muted);font-size:10px}.menu-button{width:42px;height:42px;border:0;background:none;color:var(--ink);font-size:24px}.site-nav{display:none;position:absolute;left:0;right:0;top:69px;padding:8px 18px 18px;background:#fff;border-bottom:1px solid var(--line);grid-template-columns:repeat(2,1fr);gap:1px}.site-nav.open{display:grid}.site-nav a{padding:14px;background:var(--soft);color:var(--ink);text-align:center;text-decoration:none;font-size:14px}.hero{min-height:410px;padding:34px 24px;display:flex;align-items:flex-end;background-image:linear-gradient(180deg,#0c1c2830,#061c2abc),var(--hero);background-size:cover;background-position:center;color:#fff}.hero-copy{max-width:550px}.hero-copy>span,.page-hero>span,.section-heading>span,.about-copy>span,.eyebrow{display:block;color:#ef4444;font-size:11px;font-weight:800;letter-spacing:0;text-transform:uppercase}.hero h1{margin:10px 0;font-size:34px;line-height:1.2}.hero p{margin:0 0 22px;max-width:460px;color:#e6edf1;font-size:15px;line-height:1.8}.hero a,.detail-cta a{display:inline-block;padding:12px 24px;background:var(--red);color:#fff;text-decoration:none;font-weight:700;font-size:14px}.quick-points{display:grid;grid-template-columns:repeat(4,1fr);padding:20px 12px;border-bottom:1px solid var(--line)}.quick-points div{text-align:center}.quick-points i{display:grid;place-items:center;width:36px;height:36px;margin:0 auto 8px;border:1px solid #f0b4b7;border-radius:50%;color:var(--red);font-style:normal}.quick-points span{display:block;font-size:11px}.section{padding:42px 18px}.section-tint{background:#f7f8f8}.section-heading{position:relative;margin-bottom:22px}.section-heading h2{margin:4px 0 0;font-size:24px}.section-heading h2:after{content:"";display:block;width:36px;height:3px;margin-top:9px;background:var(--red)}.section-heading a{position:absolute;right:0;bottom:7px;color:var(--muted);font-size:12px;text-decoration:none}.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.product-card{min-width:0;padding-bottom:12px;border:1px solid var(--line);color:var(--ink);text-decoration:none;background:#fff;overflow:hidden}.product-card img{display:block;width:100%;aspect-ratio:1.25;object-fit:cover;background:#f0f2f4}.product-card strong,.product-card small{display:block;padding:0 10px}.product-card strong{margin-top:10px;font-size:14px}.product-card small{margin-top:5px;color:var(--muted);font-size:11px}.case-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:83%;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px}.case-card{position:relative;min-height:230px;color:#fff;text-decoration:none;scroll-snap-align:start;overflow:hidden}.case-card img{width:100%;height:100%;position:absolute;object-fit:cover}.case-card:after{content:"";position:absolute;inset:40% 0 0;background:linear-gradient(transparent,#091219dd)}.case-card span{position:absolute;z-index:2;left:16px;right:16px;bottom:16px}.case-card strong,.case-card small{display:block}.case-card small{margin-top:6px;color:#d7dee2;font-size:11px}.about-band{display:grid;background:#162631;color:#fff}.about-image{min-height:280px;display:flex;align-items:end;padding:24px;background:linear-gradient(#12273428,#122734c9),url('about.svg') center/cover}.about-image span{padding:8px 12px;border-left:3px solid var(--red);font-weight:700}.about-copy{padding:38px 24px}.about-copy h2{font-size:25px}.about-copy p,.about-page p{color:#c9d1d6;line-height:2;font-size:14px}.about-copy a{color:#fff;font-size:13px}.article-list>a{display:flex;align-items:center;gap:12px;padding:15px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none}.article-list b{width:56px;flex:0 0 auto;padding:5px 2px;background:#fee2e2;color:var(--red);font-size:11px;text-align:center}.article-list span{min-width:0;flex:1}.article-list strong,.article-list small{display:block}.article-list strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.article-list small{margin-top:6px;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.article-list i{color:#a5a9ad;font-style:normal}.footer{padding:36px 18px 100px;background:#111c23;color:#c5cbd0;text-align:center;font-size:11px}.footer strong{color:#fff;font-size:14px}.footer a{color:#aeb9bf}.contact-bar{position:fixed;z-index:40;left:50%;bottom:12px;transform:translateX(-50%);width:min(calc(100% - 24px),696px);height:60px;display:flex;background:#fff;border:1px solid #f3c5c7;box-shadow:0 5px 20px #1e293b2b}.contact-bar span{display:flex;flex:1;min-width:0;justify-content:center;flex-direction:column;padding:0 16px;color:var(--red)}.contact-bar small,.contact-bar strong{display:block}.contact-bar small{font-size:11px}.contact-bar strong{font-size:16px;white-space:nowrap}.contact-bar a{display:grid;place-items:center;min-width:42%;background:var(--red);color:#fff;text-decoration:none;font-weight:800}.page-hero{padding:55px 24px;background:#162631;color:#fff}.page-hero h1{margin:9px 0;font-size:34px}.page-hero p{color:#c8d1d6}.list-section{min-height:50vh}.listing-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.listing-card{border:1px solid var(--line);color:inherit;text-decoration:none}.listing-card img{width:100%;aspect-ratio:1.3;object-fit:cover}.listing-card span{display:block;padding:12px}.listing-card small{color:var(--red);font-size:10px}.listing-card strong{display:block;margin-top:6px;font-size:15px}.listing-card p{margin:8px 0 0;color:var(--muted);font-size:11px;line-height:1.6}.detail-page{padding-bottom:20px}.detail-cover{padding:22px 18px 0}.detail-cover img{display:block;width:100%;max-height:460px;object-fit:cover;background:var(--soft)}.detail-article{padding:30px 22px}.detail-article h1{margin:8px 0 10px;font-size:28px;line-height:1.35}.lead{color:var(--muted);font-size:14px;line-height:1.8}.tags{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0 28px}.tags span{padding:5px 9px;border:1px solid #ddd;border-radius:15px;color:#6b7074;font-size:11px}.rich-content{font-size:15px;line-height:2;color:#30363a}.rich-content h2{margin:28px 0 6px;font-size:20px}.rich-content img{max-width:100%;height:auto}.detail-cta{margin:10px 18px 28px;padding:22px;background:#f8eeee}.detail-cta span,.detail-cta strong{display:block}.detail-cta span{font-size:13px}.detail-cta strong{margin:7px 0 16px;color:var(--red);font-size:18px}.about-page{display:grid;gap:30px;padding:34px 18px;background:#162631;color:#fff}.about-visual{min-height:270px;display:flex;align-items:flex-end;padding:20px;background:linear-gradient(#10283222,#1028329c),url('about.svg') center/cover}.about-visual span{font-weight:800}.advantage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.advantage-grid div{padding:18px;border:1px solid var(--line)}.advantage-grid b{display:block;color:#e9b5b8;font-size:24px}.advantage-grid strong{display:block;margin:10px 0;font-size:14px}.advantage-grid p{margin:0;color:var(--muted);font-size:11px;line-height:1.7}@media(min-width:650px){.product-grid{grid-template-columns:repeat(3,1fr)}.case-scroll{grid-auto-columns:60%}.about-band,.about-page{grid-template-columns:1fr 1fr}.hero{min-height:470px}.listing-grid{grid-template-columns:repeat(3,1fr)}}


.aluminum-quote{padding:18px 18px 0}

.aluminum-quote-card{padding:22px 18px;border:1px solid #f0d9db;background:linear-gradient(180deg,#fff,#fff7f7);box-shadow:0 12px 36px #1e293b12}

.aluminum-quote-desc{margin:0 0 16px;color:var(--muted);font-size:13px;line-height:1.8}

.aluminum-quote-form{display:grid;gap:12px}

.aluminum-quote-form label{display:grid;gap:6px;font-size:13px;color:var(--ink)}

.aluminum-quote-form select,.aluminum-quote-form input{width:100%;height:44px;padding:0 12px;border:1px solid #d8dde1;border-radius:10px;background:#fff;color:var(--ink);font:inherit}

.aluminum-quote-result{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:14px 14px;border-radius:12px;background:#162631;color:#fff}

.aluminum-quote-result strong{font-size:18px;line-height:1.3}

.aluminum-quote-result small{color:#d2d8dc;font-size:12px;line-height:1.5;text-align:right}

.aluminum-quote-call{display:block;padding:13px 16px;border-radius:10px;background:var(--red);color:#fff;text-align:center;text-decoration:none;font-weight:800}

.aluminum-quote-note{display:grid;gap:6px;margin-top:12px;color:var(--muted);font-size:12px;line-height:1.6}

.aluminum-quote-note span{padding-left:10px;border-left:3px solid #f0b4b7}


.home-quote-desktop{padding:0 18px 10px}.home-quote-desktop .home-quote-link{display:block;padding:10px 16px;border-radius:12px;background:linear-gradient(180deg,#fff,#fff8f8);color:#d9272e;text-align:center;text-decoration:none;font-weight:800;border:1px solid #f4c5c7;box-shadow:0 10px 24px #1e293b0d}.home-quote-desktop .home-quote-link span{display:block;font-size:11px;font-weight:800;letter-spacing:.06em;opacity:.85;color:#d9272e}.home-quote-desktop .home-quote-link strong{display:block;margin:5px 0 4px;font-size:16px;line-height:1.35;color:#d9272e}.home-quote-desktop .home-quote-link small{display:block;font-size:12px;line-height:1.5;color:#b8444a}
.quote-page .page-hero{padding-bottom:34px}.quote-price-panel{display:grid;gap:12px}.quote-current,.quote-average{padding:18px;border:1px solid #e6e8eb;border-radius:14px;background:#fff;box-shadow:0 8px 24px #1e293b0f}.quote-current span,.quote-average span,.quote-current small,.quote-average small{display:block}.quote-current strong,.quote-average strong{display:block;margin:10px 0 4px;font-size:24px;line-height:1.2;color:var(--red)}.quote-history{display:flex;flex-wrap:wrap;gap:8px}.quote-history span{padding:6px 10px;border-radius:999px;background:#eef3f6;color:#4e5961;font-size:12px}.quote-form-panel{max-width:720px;margin:0 auto}


.home-quote-link-wrap{padding:0 18px 10px}.home-quote-link{display:block;padding:12px 16px;border-radius:12px;background:linear-gradient(135deg,#d9272e,#ef5b61);color:#fff;text-align:center;text-decoration:none;font-weight:800;box-shadow:0 10px 24px #d9272e26}.quote-page{background:#fff}.quote-hero-light{background:#fff;color:#1d252c;border-bottom:1px solid #eceff2}.quote-hero-light .eyebrow{color:#d9272e}.quote-summary-wrap,.quote-form-section{padding-top:16px}.white-card{background:#fff;border:1px solid #eceff2;border-radius:16px;box-shadow:0 10px 28px #1e293b0d;padding:18px}.quote-summary{display:grid;gap:14px}.quote-current,.quote-average{padding:0 0 10px}.red-label{display:block;color:#d9272e;font-size:12px;font-weight:800}.red-value{display:block;margin:6px 0 4px;color:#d9272e;font-size:24px;line-height:1.2}.quote-history{display:flex;flex-wrap:wrap;gap:8px}.quote-history span{padding:6px 10px;border-radius:999px;background:#fff5f5;color:#d9272e;border:1px solid #f4c5c7;font-size:12px}.quote-form-panel{max-width:720px;margin:0 auto}.quote-form-section .section-heading h2:after{background:#d9272e}.quote-page .aluminum-quote-form{display:grid;gap:12px}.quote-page .aluminum-quote-form label{display:grid;gap:6px;font-size:13px;color:#1d252c}.quote-page .aluminum-quote-form select,.quote-page .aluminum-quote-form input{width:100%;height:44px;padding:0 12px;border:1px solid #d8dde1;border-radius:10px;background:#fff;color:#1d252c;font:inherit}.quote-page .aluminum-quote-result{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:14px 14px;border-radius:12px;background:#fff5f5;color:#d9272e;border:1px solid #f4c5c7}.quote-page .aluminum-quote-result strong{font-size:18px;line-height:1.3;color:#d9272e}.quote-page .aluminum-quote-result small{color:#d9272e;font-size:12px;line-height:1.5;text-align:right}.quote-page .aluminum-quote-call{display:block;padding:13px 16px;border-radius:10px;background:#d9272e;color:#fff;text-align:center;text-decoration:none;font-weight:800}.quote-page .aluminum-quote-note{display:grid;gap:6px;margin-top:12px;color:#d9272e;font-size:12px;line-height:1.6}.quote-page .aluminum-quote-note span{padding-left:10px;border-left:3px solid #f4c5c7}


.mobile-quote-cta{padding:0 18px 20px}.mobile-quote-card{display:block;padding:16px 18px;border-radius:16px;background:#fff;border:1px solid #f3c5c7;box-shadow:0 10px 24px #1e293b0f;color:#d9272e;text-decoration:none}.mobile-quote-card span{display:block;font-size:12px;font-weight:800;letter-spacing:0.06em}.mobile-quote-card strong{display:block;margin:7px 0 4px;font-size:18px;line-height:1.35;color:#d9272e}.mobile-quote-card small{display:block;color:#b8444a;font-size:12px;line-height:1.6}.quote-page{background:#fff}.quote-hero-light{background:#fff;color:#1d252c;border-bottom:1px solid #eceff2}.quote-hero-light .eyebrow{color:#d9272e}.quote-summary-wrap,.quote-form-section{padding-top:16px}.white-card{background:#fff;border:1px solid #eceff2;border-radius:16px;box-shadow:0 10px 28px #1e293b0d;padding:18px}.quote-summary{display:grid;gap:14px}.quote-current,.quote-average{padding:0 0 10px}.red-label{display:block;color:#d9272e;font-size:12px;font-weight:800}.red-value{display:block;margin:6px 0 4px;color:#d9272e;font-size:24px;line-height:1.2}.quote-history{display:flex;flex-wrap:wrap;gap:8px}.quote-history span{padding:6px 10px;border-radius:999px;background:#fff5f5;color:#d9272e;border:1px solid #f4c5c7;font-size:12px}.quote-form-panel{max-width:720px;margin:0 auto}.quote-form-section .section-heading h2:after{background:#d9272e}.quote-page .aluminum-quote-form{display:grid;gap:12px}.quote-page .aluminum-quote-form label{display:grid;gap:6px;font-size:13px;color:#1d252c}.quote-page .aluminum-quote-form select,.quote-page .aluminum-quote-form input{width:100%;height:44px;padding:0 12px;border:1px solid #d8dde1;border-radius:10px;background:#fff;color:#1d252c;font:inherit}.quote-page .aluminum-quote-result{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:14px 14px;border-radius:12px;background:#fff5f5;color:#d9272e;border:1px solid #f4c5c7}.quote-page .aluminum-quote-result strong{font-size:18px;line-height:1.3;color:#d9272e}.quote-page .aluminum-quote-result small{color:#d9272e;font-size:12px;line-height:1.5;text-align:right}.quote-page .aluminum-quote-call{display:block;padding:13px 16px;border-radius:10px;background:#d9272e;color:#fff;text-align:center;text-decoration:none;font-weight:800}.quote-page .aluminum-quote-note{display:grid;gap:6px;margin-top:12px;color:#d9272e;font-size:12px;line-height:1.6}.quote-page .aluminum-quote-note span{padding-left:10px;border-left:3px solid #f4c5c7}

@media(min-width:650px){
.home-quote-desktop{display:block}
.mobile-quote-cta{display:none}
}
@media(max-width:649px){
.home-quote-desktop{display:none}
.mobile-quote-cta{display:block}
}
.lead-modal{position:fixed;inset:0;z-index:9999;display:grid;place-items:center;padding:18px}
.lead-modal[hidden]{display:none}
.lead-modal__backdrop{position:absolute;inset:0;background:rgba(13,18,24,.62);backdrop-filter:blur(4px)}
.lead-modal__panel{position:relative;z-index:1;width:min(100%,520px);padding:22px 18px 18px;border-radius:18px;background:#fff;box-shadow:0 24px 80px rgba(0,0,0,.28);display:grid;gap:14px}
.lead-modal__panel h2{margin:0;font-size:22px;line-height:1.35;color:#17212b}
.lead-modal__panel p{margin:0;color:#51606b;line-height:1.7}
.lead-modal__close{position:absolute;top:10px;right:12px;width:36px;height:36px;border:0;border-radius:50%;background:#f3f5f7;color:#33424f;font-size:22px;line-height:1;cursor:pointer}
.lead-modal__form{display:grid;gap:12px}
.lead-modal__form label{display:grid;gap:6px;font-size:13px;color:#24313d}
.lead-modal__form input{width:100%;height:44px;padding:0 12px;border:1px solid #d6dde4;border-radius:10px;background:#fff;color:#1d252c;font:inherit}
.lead-modal__form button{height:46px;border:0;border-radius:10px;background:#d9272e;color:#fff;font-weight:800;cursor:pointer}
.lead-modal__form small{color:#60707d;font-size:12px}
body.lead-modal-open{overflow:hidden}
.quote-page .quote-summary{border-top:3px solid #d9272e}.quote-page .quote-current,.quote-page .quote-average{background:linear-gradient(180deg,#fff,#fff8f8);padding:14px 14px 10px}.quote-page .quote-current .red-value,.quote-page .quote-average .red-value{font-size:22px;letter-spacing:.1px;line-height:1.15}.quote-page .quote-current small,.quote-page .quote-average small{font-size:11px;line-height:1.4}.quote-page .quote-history span{font-weight:700;font-size:11px}.quote-page .quote-form-panel{border-top:3px solid #d9272e}.quote-page .reference-heading h2{font-size:22px;line-height:1.25}.quote-page .aluminum-quote-call{box-shadow:0 10px 24px #d9272e26}.quote-page .aluminum-quote-note{color:#6a5457}.quote-page .aluminum-quote-note span{border-left-color:#efb6ba}
.quote-page .quote-hero-light h1{font-size:30px;line-height:1.18}.quote-page .quote-hero-light p{color:#5f6b73;font-size:15px;line-height:1.75;max-width:58ch}.quote-page .reference-heading span{letter-spacing:.08em}.quote-page .reference-heading h2{font-size:22px}.quote-page .aluminum-quote-result strong{font-size:19px}.quote-page .aluminum-quote-result small{font-size:12px}

@media (max-width: 640px){
.quote-page .page-hero{padding:28px 18px 22px}
.quote-page .quote-hero-light h1{font-size:24px;line-height:1.22}
.quote-page .quote-hero-light p{font-size:13px;line-height:1.7;margin-bottom:0}
.quote-page .quote-summary-wrap,.quote-page .quote-form-section{padding-top:12px}
.quote-page .white-card{padding:14px;border-radius:14px}
.quote-page .quote-summary{gap:10px}
.quote-page .quote-current,.quote-page .quote-average{padding:0 0 6px}
.quote-page .quote-current .red-value,.quote-page .quote-average .red-value{font-size:18px}
.quote-page .quote-current small,.quote-page .quote-average small{font-size:10px;line-height:1.35}
.quote-page .quote-history{gap:6px}
.quote-page .quote-history span{padding:5px 8px;font-size:10px}
.quote-page .quote-current{padding-bottom:4px}
.quote-page .quote-current .red-label{font-size:11px}
.quote-page .quote-current .red-value{margin:4px 0 2px}
.quote-page .quote-current small{margin-top:0}
.quote-page .reference-heading{margin-bottom:14px}
.quote-page .reference-heading span{font-size:10px}
.quote-page .reference-heading h2{font-size:18px}
.quote-page .aluminum-quote-form{gap:10px}
.quote-page .aluminum-quote-form label{font-size:12px}
.quote-page .quote-form-panel{max-width:none}
.quote-page .aluminum-quote-result{padding:12px;gap:8px;align-items:flex-start;flex-direction:column}
.quote-page .aluminum-quote-result strong{font-size:17px}
.quote-page .aluminum-quote-result small{text-align:left;line-height:1.45}
.quote-page .aluminum-quote-call{padding:12px 14px;font-size:14px}
.quote-page .aluminum-quote-note{font-size:11px;line-height:1.55}
.quote-page .aluminum-quote-note span{padding-left:8px}

@media (min-width: 641px){
.quote-page .aluminum-quote-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.quote-page .aluminum-quote-form label{font-size:12px;gap:5px}
.quote-page .aluminum-quote-form select,.quote-page .aluminum-quote-form input{height:40px;padding:0 10px}
.quote-page .aluminum-quote-form .aluminum-quote-result,.quote-page .aluminum-quote-form .aluminum-quote-call{grid-column:1/-1}
.quote-page .aluminum-quote-result{padding:12px}
}

@media (max-width: 640px){
.quote-page .aluminum-quote-form{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.quote-page .aluminum-quote-form label{font-size:11px;gap:4px}
.quote-page .aluminum-quote-form select,.quote-page .aluminum-quote-form input{height:38px;padding:0 9px}
.quote-page .aluminum-quote-form .aluminum-quote-result,.quote-page .aluminum-quote-form .aluminum-quote-call{grid-column:1/-1}
.quote-page .aluminum-quote-result{padding:10px}
}
.lead-modal{padding:12px}
.lead-modal__panel{padding:18px 14px 14px;border-radius:16px}
.lead-modal__panel h2{font-size:18px;line-height:1.3}
.lead-modal__panel p{font-size:13px;line-height:1.6}
.lead-modal__form{gap:10px}
.lead-modal__form label{font-size:12px}
.lead-modal__form input{height:42px}
.lead-modal__form button{height:44px;font-size:14px}
}