/* Beijing Huaxiatex Co. LTD — chinaloomspareparts.com */
:root{
  --navy:#2f3560;
  --navy-d:#232848;
  --navy-l:#3d447a;
  --blue:#0d8fd4;
  --blue-d:#0a72aa;
  --ink:#1e2233;
  --body:#4a5062;
  --muted:#767d90;
  --line:#e2e6ee;
  --bg:#ffffff;
  --soft:#f4f6fa;
  --soft2:#eef1f7;
  --maxw:1220px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--body);font-family:var(--sans);font-size:16px;line-height:1.68}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue-d);text-decoration:none}
a:hover{color:var(--blue)}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.25;margin:0 0 .55em;letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,3.2vw,2.5rem)}
h2{font-size:clamp(1.4rem,2.4vw,1.95rem)}
h3{font-size:1.12rem}
h4{font-size:.98rem}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:840px;margin-left:auto;margin-right:auto}
.center{text-align:center}
.eyebrow{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--blue);font-weight:700;margin:0 0 .8em}
.lead{font-size:1.05rem;color:var(--body)}
.muted{color:var(--muted)}
section{padding:62px 0}
section.tight{padding:40px 0}
.bg-soft{background:var(--soft)}
.bg-soft2{background:var(--soft2)}
.rule{width:48px;height:3px;background:var(--blue);border:0;margin:0 0 1.3em}
.center .rule{margin-left:auto;margin-right:auto}

/* header */
.topbar{background:var(--navy-d);color:#c3c9e4;font-size:.8rem}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:6px 24px;align-items:center;justify-content:space-between;padding-top:7px;padding-bottom:7px}
.topbar a{color:#c3c9e4}
.topbar a:hover{color:#fff}
.topbar .tl{display:flex;flex-wrap:wrap;gap:6px 20px}
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 1px 10px rgba(30,34,51,.05)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:74px}
.logo img{height:44px;width:auto}
.nav{display:flex;align-items:center;gap:26px;margin:0;padding:0}
.nav > li{list-style:none;position:relative}
.nav > li.has-mega{position:static}
.nav ul{margin:0;padding:0}
.nav > li > a{display:inline-flex;align-items:center;gap:6px;font-size:.83rem;letter-spacing:.11em;text-transform:uppercase;color:var(--ink);padding:24px 0;font-weight:700}
.nav > li > a:hover,.nav > li.current > a{color:var(--blue)}
.nav > li.current > a{box-shadow:inset 0 -3px 0 var(--blue)}
.caret{width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
.mega{position:absolute;left:0;right:0;top:100%;transform:translateY(8px);background:#fff;border:1px solid var(--line);box-shadow:0 20px 50px rgba(30,34,51,.16);padding:24px 26px 20px;opacity:0;visibility:hidden;transition:opacity .16s ease,transform .16s ease;max-height:min(74vh,600px);overflow-y:auto}
.nav > li:hover .mega,.nav > li:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:4px 28px;align-items:start}
.mega-col{min-width:0}
.mega-col a{display:block;padding:6px 0;font-size:.87rem;color:var(--body);border-bottom:1px solid transparent}
.mega-col a:hover{color:var(--blue)}
.mega-col .mh{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--navy);font-weight:700;padding:10px 0 4px;margin-top:6px;border-top:1px solid var(--line)}
.mega-col .mh:first-child{border-top:0;margin-top:0;padding-top:0}
.mega-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 24px;font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.nav-cta{display:inline-block;background:var(--blue);color:#fff;padding:11px 20px;font-size:.76rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;border-radius:2px}
.nav > li > a.nav-cta{padding:11px 20px;color:#fff}
.nav-cta{color:#fff}
.nav > li > a.nav-cta:hover,.nav-cta:hover{background:var(--navy);color:#fff}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;cursor:pointer;position:relative;z-index:75;border-radius:2px}
.burger span,.burger span::before,.burger span::after{position:absolute;left:12px;width:20px;height:2px;background:var(--ink);content:"";transition:.2s}
.burger span{top:21px}
.burger span::before{top:-6px;left:0}
.burger span::after{top:6px;left:0}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{transform:rotate(45deg) translate(4px,4px)}
.burger[aria-expanded="true"] span::after{transform:rotate(-45deg) translate(4px,-4px)}

/* hero */
.hero{position:relative;background:var(--navy) url("../img/brand/hero.webp") center/cover no-repeat;color:#fff;display:flex;align-items:center;min-height:470px}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(35,40,72,.96) 0%,rgba(35,40,72,.9) 42%,rgba(35,40,72,.55) 68%,rgba(35,40,72,.4) 100%)}
.hero .wrap{position:relative;z-index:2;width:100%;padding-top:52px;padding-bottom:52px}
.hero-copy{max-width:640px}
.hero h1{color:#fff;margin-bottom:.4em}
.hero .eyebrow{color:#7fc6f0}
.hero p{color:#d3d8ec}
.hero ul{list-style:none;margin:0 0 26px;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:4px 20px}
.hero ul li{position:relative;padding-left:20px;color:#d3d8ec;font-size:.95rem}
.hero ul li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:2px;background:var(--blue)}
.hero-mob{display:none}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:13px 26px;font-size:.79rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;border:2px solid var(--blue);background:var(--blue);color:#fff;border-radius:2px}
.btn:hover{background:var(--blue-d);border-color:var(--blue-d);color:#fff}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn.ghost:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn.dark{background:var(--navy);border-color:var(--navy)}
.btn.dark:hover{background:var(--navy-d);border-color:var(--navy-d)}
.btn.outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn.outline:hover{background:var(--navy);color:#fff}
.btn.sm{padding:9px 18px;font-size:.72rem}

/* page head */
.pagehead{background:var(--navy);color:#fff;padding:42px 0 40px}
.pagehead h1{color:#fff;margin-bottom:.2em}
.pagehead p{color:#c3c9e4;margin:0}
.crumbs{font-size:.78rem;color:#9aa2c4;margin-bottom:12px}
.crumbs a{color:#9aa2c4}
.crumbs a:hover{color:#fff}

/* facts */
.facts{background:var(--navy-d);color:#c3c9e4;padding:0}
.facts .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-top:26px;padding-bottom:26px;text-align:center}
.facts strong{display:block;font-size:1.4rem;color:#fff;margin-bottom:1px}
.facts span{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:#8f97bd}

/* grids */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g6{grid-template-columns:repeat(6,1fr);gap:16px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center}

/* cards */
.card{background:#fff;border:1px solid var(--line);padding:24px 22px;border-radius:3px}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card p{font-size:.94rem}
.catcard{background:#fff;border:1px solid var(--line);border-radius:3px;display:block;overflow:hidden;transition:box-shadow .18s,transform .18s}
.catcard:hover{box-shadow:0 12px 30px rgba(30,34,51,.13);transform:translateY(-2px)}
.catcard img{width:100%;aspect-ratio:1/1;object-fit:contain;background:#fff;padding:12px}
.catcard .cb{padding:14px 16px 18px;border-top:1px solid var(--line)}
.catcard h3{font-size:1rem;margin-bottom:.25em;color:var(--ink)}
.catcard p{font-size:.85rem;color:var(--muted);margin:0}

.pcard{background:#fff;border:1px solid var(--line);border-radius:3px;display:flex;flex-direction:column;overflow:hidden;transition:box-shadow .18s,transform .18s}
.pcard:hover{box-shadow:0 12px 28px rgba(30,34,51,.13);transform:translateY(-2px)}
.pcard .ph{background:#fff;padding:10px;border-bottom:1px solid var(--line)}
.pcard .ph img{width:100%;aspect-ratio:1/1;object-fit:contain}
.pcard .noimg{width:100%;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;background:var(--soft);color:var(--muted);font-size:.75rem;text-align:center;padding:12px;line-height:1.4}
.pcard .pb{padding:12px 14px 16px;flex:1;display:flex;flex-direction:column}
.pcard h3{font-size:.88rem;font-weight:600;color:var(--ink);margin:0 0 6px;line-height:1.4;word-break:break-word}
.pcard .cat{font-size:.72rem;color:var(--muted);margin-top:auto}

/* product detail */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.gmain{border:1px solid var(--line);background:#fff;padding:18px;border-radius:3px}
.gmain img{width:100%;aspect-ratio:4/3;object-fit:contain}
.gmain .noimg{width:100%;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;background:var(--soft);color:var(--muted);font-size:.9rem;text-align:center;padding:20px}
.thumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:10px}
.thumbs img{border:1px solid var(--line);background:#fff;aspect-ratio:1/1;object-fit:contain;padding:5px;cursor:pointer;border-radius:2px}
.thumbs img.on{border-color:var(--blue)}
.spec{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:.93rem}
.spec th,.spec td{text-align:left;padding:10px 13px;border:1px solid var(--line);vertical-align:top}
.spec th{width:36%;background:var(--soft);font-weight:600;color:var(--ink)}
.tag{display:inline-block;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);background:#eaf5fd;padding:5px 12px;margin-bottom:14px;border-radius:2px;font-weight:700}
.desc{background:var(--soft);border-left:3px solid var(--blue);padding:16px 18px;margin:0 0 22px;font-size:.95rem}
.desc :last-child{margin-bottom:0}
.desc img{margin:8px 0;border:1px solid var(--line);background:#fff}

/* lists */
.checks{list-style:none;margin:0;padding:0}
.checks li{position:relative;padding-left:24px;margin-bottom:8px}
.checks li::before{content:"";position:absolute;left:0;top:8px;width:10px;height:5px;border-left:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(-45deg)}
.brandlist{display:flex;flex-wrap:wrap;gap:8px}
.brandlist span{border:1px solid var(--line);background:#fff;padding:7px 14px;font-size:.83rem;color:var(--ink);border-radius:2px}

/* pagination */
.pager{display:flex;flex-wrap:wrap;gap:7px;justify-content:center;margin-top:34px}
.pager a,.pager span{min-width:38px;text-align:center;padding:8px 11px;border:1px solid var(--line);font-size:.86rem;background:#fff;border-radius:2px}
.pager .on{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager .gap{border:0;background:transparent;color:var(--muted)}

/* faq */
.faq{max-width:840px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:16px 34px 16px 0;position:relative;font-weight:600;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:6px;top:23px;width:8px;height:8px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);transform:rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq .a{padding:0 0 18px;color:var(--body);font-size:.95rem}
.faq .a p:last-child{margin-bottom:0}

/* flow */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.flow div{background:#fff;border:1px solid var(--line);padding:20px 14px;text-align:center;position:relative;border-radius:3px}
.flow div::after{content:"";position:absolute;right:-11px;top:50%;width:8px;height:8px;border-right:2px solid var(--blue);border-top:2px solid var(--blue);transform:translateY(-50%) rotate(45deg)}
.flow div:last-child::after{display:none}
.flow strong{display:block;font-size:1rem;color:var(--ink);margin-bottom:3px}
.flow span{font-size:.82rem;color:var(--muted)}

/* cta */
.cta{background:var(--navy);color:#d3d8ec;text-align:center}
.cta h2{color:#fff}
.cta p{max-width:680px;margin-left:auto;margin-right:auto}
.cta .btn-row{justify-content:center;margin-top:22px}

/* contact */
.cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ccard{background:#fff;border:1px solid var(--line);padding:26px 22px;text-align:center;border-radius:3px}
.ccard h3{font-size:1rem}
.ccard p{margin:0;word-break:break-word}

/* footer */
.site-footer{background:var(--navy-d);color:#9aa2c4;font-size:.92rem;padding:54px 0 0}
.site-footer h4{color:#fff;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:1.1em}
.site-footer a{color:#9aa2c4}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.footer-logo img{height:40px;width:auto;margin-bottom:16px;background:#fff;padding:6px 10px;border-radius:2px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:44px;padding:18px 0;font-size:.82rem;display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}

/* float */
.float-cta{position:fixed;right:16px;bottom:16px;z-index:80;display:inline-flex;align-items:center;gap:8px;background:#25d366;color:#fff;padding:12px 18px;font-size:.77rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;box-shadow:0 8px 22px rgba(30,34,51,.28);border-radius:3px}
.float-cta:hover{background:#1eb457;color:#fff}
.float-cta svg{width:17px;height:17px;fill:currentColor}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.rise{animation:rise .6s ease both}
@media (prefers-reduced-motion:reduce){.rise{animation:none}}

@media (max-width:1100px){
  .g6{grid-template-columns:repeat(4,1fr)}
  .mega-cols{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:980px){
  .g4{grid-template-columns:repeat(3,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .split,.pdetail{grid-template-columns:1fr;gap:30px}
  .facts .wrap{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
  .flow div::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cgrid{grid-template-columns:1fr}
}
@media (max-width:880px){
  .burger{display:block}
  .nav{position:fixed;top:0;right:0;height:100dvh;width:min(340px,90vw);background:#fff;border-left:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:88px 22px 40px;transform:translateX(102%);transition:transform .24s ease;overflow-y:auto;z-index:70}
  .nav.open{transform:none}
  .nav > li > a{padding:13px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}
  .mega{position:static;transform:none;width:auto;opacity:1;visibility:visible;box-shadow:none;border:0;padding:10px 0 4px}
  .nav > li:hover .mega{transform:none}
  .mega-cols{grid-template-columns:1fr;gap:0}
  .mega{max-height:none;overflow:visible}
  .mega-foot{display:none}
  .nav-cta{margin-top:16px;text-align:center}
  .hero{background-image:none;min-height:0}
  .hero::after{display:none}
  .hero-copy{max-width:none}
  .hero-mob{display:block;margin-top:24px;border-radius:3px;overflow:hidden}
}
@media (max-width:680px){
  section{padding:46px 0}
  .g2,.g3,.g4,.grid{grid-template-columns:1fr}
  .g6{grid-template-columns:repeat(2,1fr)}
  .hero ul{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .thumbs{grid-template-columns:repeat(4,1fr)}
  .topbar .wrap{justify-content:center;font-size:.75rem}
}
@media (min-width:681px) and (max-width:980px){
  .g6{grid-template-columns:repeat(3,1fr)}
}

/* === review-patch enrich (senkosteel-inspired layout density) === */
:root{--fp-ink:#0B1220;--fp-blue:#1E5AA8;--fp-blue-soft:#8FB1DD;--fp-muted:#5B6B7C;--fp-bg:#F5F7FA;--fp-line:#D7DEE7;--fp-max:1160px;--fp-s-4:1rem;--fp-s-5:1.5rem;--fp-s-6:2rem;--fp-s-7:3rem;--fp-s-8:4rem;--fp-s-9:5rem}
.full-bleed,.hero.full-bleed,.hero-full,.banner-full{position:relative;isolation:isolate;overflow:hidden;min-height:100vh;min-height:70vh;background-size:cover;background-position:center}
.hero.full-bleed{display:flex;align-items:flex-end;color:#fff;background:#0B1220}
.hero.full-bleed .hero-media,.hero-full .hero-media{position:absolute;inset:0;z-index:-2}
.hero.full-bleed .hero-media img,.hero-full .hero-media img{width:100%;height:100%;object-fit:cover;display:block}
.hero.full-bleed::after,.hero-full::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(11,18,32,.78),rgba(11,18,32,.45) 55%,rgba(11,18,32,.55));pointer-events:none}
.hero.full-bleed .hero-inner,.hero.full-bleed .wrap{position:relative;z-index:1;padding:var(--fp-s-9) 1.25rem var(--fp-s-8);max-width:760px}
.hero.full-bleed h1{color:#fff;font-size:clamp(1.75rem,4vw,3rem);line-height:1.15;margin:0 0 1rem}
.hero.full-bleed p,.hero.full-bleed .hero-lead{color:#D5DFEB;font-size:1.05rem;line-height:1.6;max-width:44em}
.hero-strip{background:rgba(255,255,255,.07);border-top:1px solid rgba(255,255,255,.14)}
.hero-strip .wrap,.fp-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:0;max-width:var(--fp-max);margin:0 auto;padding:0 1.25rem}
.hero-strip div,.fp-strip>div{padding:1.25rem 1.25rem 1.25rem 0;border-right:1px solid rgba(255,255,255,.12)}
.hero-strip div:last-child,.fp-strip>div:last-child{border-right:0}
.fp-section{padding:var(--fp-s-8) 1.25rem;background:#fff}
.fp-section.alt{background:var(--fp-bg)}
.fp-wrap{max-width:var(--fp-max);margin:0 auto}
.fp-section h2{font-size:clamp(1.35rem,2.5vw,1.85rem);margin:0 0 1rem;color:var(--fp-ink)}
.fp-section .lead{color:var(--fp-muted);font-size:1.05rem;line-height:1.65;max-width:48em;margin:0 0 1.75rem}
.fp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.25rem}
.fp-card{background:#fff;border:1px solid var(--fp-line);border-radius:10px;overflow:hidden;box-shadow:0 1px 2px rgba(11,18,32,.04)}
.fp-card img{width:100%;height:180px;object-fit:cover;display:block;background:#e8eef5}
.fp-card .body{padding:1rem 1.05rem 1.2rem}
.fp-card h3{margin:0 0 .4rem;font-size:1rem;color:var(--fp-ink)}
.fp-card p{margin:0;color:var(--fp-muted);font-size:.92rem;line-height:1.5}
.fp-split{display:grid;grid-template-columns:1.05fr .95fr;gap:2rem;align-items:center}
.fp-split img{width:100%;border-radius:12px;object-fit:cover;max-height:420px}
.fp-facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin-top:1.5rem}
.fp-facts div{background:#fff;border:1px solid var(--fp-line);border-radius:10px;padding:1rem 1.1rem}
.fp-facts strong{display:block;font-size:1.35rem;color:var(--fp-blue);margin-bottom:.25rem}
.fp-cta{background:var(--fp-ink);color:#fff;padding:var(--fp-s-8) 1.25rem;text-align:center}
.fp-cta h2{color:#fff;margin:0 0 .75rem}
.fp-cta p{color:#D5DFEB;max-width:40em;margin:0 auto 1.25rem;line-height:1.6}
.fp-btn{display:inline-block;background:var(--fp-blue);color:#fff;padding:.85rem 1.35rem;border-radius:8px;text-decoration:none;font-weight:600}
@media (max-width:860px){
  .fp-split{grid-template-columns:1fr}
  .hero-strip .wrap,.fp-strip{grid-template-columns:1fr 1fr}
  .hero.full-bleed{min-height:60vh}
}
@media (max-width:560px){
  .hero-strip .wrap,.fp-strip{grid-template-columns:1fr}
}