:root{
  --ink:#1c1a17; --muted:#6f6a62; --line:#e7e2da; --bg:#faf8f4; --card:#fff;
  --accent:#b3542e; --accent-dk:#8f4022; --gold:#c9a15a;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Georgia,'Times New Roman',serif;color:var(--ink);background:var(--bg);line-height:1.65}
h1,h2,h3,h4{font-weight:600;line-height:1.25}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.center{text-align:center}
.pad{padding:60px 0}

/* header */
.site-head{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:1.35rem;font-weight:700;letter-spacing:.02em}
.logo span{color:var(--accent)}
.nav{display:flex;gap:22px;align-items:center;font-size:.95rem}
.nav a{color:var(--muted);padding:4px 0;border-bottom:2px solid transparent}
.nav a.on,.nav a:hover{color:var(--ink);border-color:var(--accent)}
.nav a.cta{background:var(--accent);color:#fff;padding:8px 18px;border-radius:999px;border:0}
.nav a.cta:hover{background:var(--accent-dk)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.2rem;padding:4px 10px;cursor:pointer}

/* hero */
.hero{background:linear-gradient(160deg,#f3ede2 0%,#faf8f4 60%);border-bottom:1px solid var(--line);padding:72px 0 56px}
.hero h1{font-size:2.6rem;margin-bottom:16px}
.hero h1 em{color:var(--accent);font-style:normal}
.hero .lead{max-width:640px;color:var(--muted);font-size:1.08rem;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;margin-bottom:40px;flex-wrap:wrap}
.hero-facts{list-style:none;display:flex;gap:44px;flex-wrap:wrap}
.hero-facts li{display:flex;flex-direction:column}
.hero-facts b{font-size:1.5rem;color:var(--accent)}
.hero-facts span{color:var(--muted);font-size:.85rem}

/* buttons */
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 26px;border-radius:999px;border:0;font-size:.95rem;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--accent-dk)}
.btn.ghost{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}
.btn.ghost:hover{background:var(--accent);color:#fff}

/* sections */
section{padding:52px 0}
.band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:0 -20px;padding-left:20px;padding-right:20px}
.sec-title{font-size:1.6rem;margin-bottom:8px;text-align:center}
.sec-title+p.muted{margin-bottom:28px}

/* product grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;margin:28px 0}
.grid.wide{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 6px 20px rgba(0,0,0,.08);transform:translateY(-2px)}
.thumb{aspect-ratio:3/4;background:#efebe3;display:flex;align-items:center;justify-content:center;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb .ph{color:var(--muted);font-size:1.3rem;letter-spacing:.05em}
.card-body{padding:12px 14px}
.card-body b{display:block;font-size:.98rem;margin-bottom:2px}
.card-body span{font-size:.82rem}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;position:relative}
.pcard img{aspect-ratio:1/1;width:100%;object-fit:cover}
.pcard:hover{box-shadow:0 6px 20px rgba(0,0,0,.08)}
.pcard-meta{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#fff;padding:22px 10px 8px;font-size:.78rem;display:flex;justify-content:space-between}
.feat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:24px}
.feat h3{margin-bottom:8px;font-size:1.1rem}
.feat p{color:var(--muted);font-size:.92rem}

/* filter bar */
.filterbar{display:flex;flex-direction:column;gap:14px;margin:24px 0}
.filterbar input[type=search]{width:100%;max-width:420px;padding:11px 16px;border:1px solid var(--line);border-radius:999px;font-size:.95rem;font-family:inherit;background:var(--card)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);font-size:.88rem}
.chip.on,.chip:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.page-title{font-size:2rem;margin:44px 0 10px}

/* product detail */
.crumb{font-size:.85rem;color:var(--muted);margin:28px 0 18px}
.crumb a:hover{color:var(--accent)}
.pd{display:grid;grid-template-columns:1fr 1fr;gap:44px;padding-bottom:40px}
.pd-main{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px;background:#efebe3;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.pd-main.ph{font-size:1.6rem;text-align:center}
.pd-main.ph small{font-size:.9rem}
.pd-thumbs{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.pd-thumbs img{width:72px;height:96px;object-fit:cover;border-radius:8px;cursor:pointer;border:2px solid transparent}
.pd-thumbs img:hover{border-color:var(--accent)}
.pd-info h1{font-size:1.8rem;margin-bottom:6px}
.pd-info .blurb{color:var(--muted);margin:14px 0 20px}
.spec{width:100%;border-collapse:collapse;font-size:.92rem;margin-bottom:22px}
.spec th,.spec td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{width:38%;color:var(--muted);font-weight:400}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:12px}

/* prose */
.prose{max-width:760px;margin:0 auto;padding:10px 0 50px}
.prose p{margin:14px 0}
.prose .lead{font-size:1.15rem}
.prose h2{margin:34px 0 10px;font-size:1.35rem}
.prose ul,.prose ol{margin:12px 0 12px 22px}
.prose li{margin:7px 0}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 0}
.cert{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.cert h3{font-size:1.05rem;margin-bottom:6px}
.cert p{font-size:.9rem;color:var(--muted);margin:0}
.wide-table{max-width:760px}

/* forms */
.contact-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:36px;padding-bottom:60px}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;margin:26px 0}
.form-card h2{margin-bottom:6px;font-size:1.3rem}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-card label{display:block;font-size:.88rem;color:var(--muted);margin:14px 0}
.form-card input,.form-card textarea{width:100%;margin-top:5px;padding:11px 14px;border:1px solid var(--line);border-radius:9px;font-size:.95rem;font-family:inherit;background:var(--bg)}
.form-card input:focus,.form-card textarea:focus{outline:2px solid var(--accent);border-color:transparent}
.form-card .btn{margin-top:18px;width:100%}
.contact-side{padding-top:26px}
.contact-side h3{margin-bottom:10px}
.contact-side p{margin:9px 0}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;margin-top:24px}
.side-card h3{margin-bottom:8px}
.side-card p{margin:5px 0;font-size:.92rem;color:var(--muted)}
.success{background:#eaf5ec;border:1px solid #bfe0c6;border-radius:14px;padding:36px;margin:30px 0 70px;text-align:center}
.success h2{margin-bottom:8px}

/* footer */
.site-foot{background:#211e1a;color:#cfc9bf;margin-top:40px;padding:52px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:30px;padding-bottom:36px}
.site-foot .logo{color:#fff;margin-bottom:10px}
.site-foot .logo span{color:var(--gold)}
.site-foot h4{color:#fff;margin-bottom:12px;font-size:.95rem}
.site-foot a{display:block;color:#cfc9bf;font-size:.9rem;margin:7px 0}
.site-foot a:hover{color:#fff}
.site-foot p.muted{color:#9b948a;font-size:.88rem;margin-top:8px}
.copy{border-top:1px solid #37322b;padding:18px 20px;font-size:.82rem;color:#8b847a;text-align:center}

/* responsive */
@media(max-width:860px){
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--card);flex-direction:column;align-items:flex-start;padding:16px 20px;gap:14px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .burger{display:block}
  .hero h1{font-size:1.9rem}
  .pd{grid-template-columns:1fr;gap:24px}
  .contact-grid{grid-template-columns:1fr}
  .frow{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}

/* studio gallery */
.sg{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:26px 0}
.sg figure{margin:0;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.sg img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.sg figcaption{padding:10px 14px;font-size:.85rem;color:var(--muted)}
.studio-band{margin:0 -20px;background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.studio-band .inner{max-width:1120px;margin:0 auto;padding:52px 20px;display:grid;grid-template-columns:1.1fr 1fr;gap:36px;align-items:center}
.studio-band img{width:100%;border-radius:12px;aspect-ratio:16/10;object-fit:cover}
.studio-band h2{font-size:1.6rem;margin-bottom:10px}
.studio-band p{color:var(--muted);margin:10px 0}
@media(max-width:860px){.studio-band .inner{grid-template-columns:1fr}}

/* custom design page */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:30px 0}
.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px;position:relative}
.step>b{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;font-size:1.1rem;margin-bottom:10px}
.step h3{font-size:1.05rem;margin-bottom:6px}
.step p{font-size:.9rem;color:var(--muted);margin:0}
.price-card{background:var(--card);border:2px solid var(--accent);border-radius:16px;padding:32px;max-width:560px;margin:34px auto;text-align:center}
.price-card .price{margin:12px 0 18px}
.price-card .num{font-size:2.6rem;color:var(--accent);font-weight:700}
.price-card .per{display:block;color:var(--muted);font-size:.95rem}
.price-card ul{list-style:none;text-align:left;margin:0 auto 16px;max-width:420px}
.price-card li{padding:7px 0 7px 26px;position:relative;font-size:.93rem;border-bottom:1px dashed var(--line)}
.price-card li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.price-card .btn{width:100%;margin-top:8px}

/* custom design tiers */
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:26px 0}
.tier{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px 22px;display:flex;flex-direction:column;position:relative}
.tier.hot{border:2px solid var(--accent);box-shadow:0 4px 18px rgba(179,84,46,.12)}
.tier .ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;font-size:.72rem;padding:3px 14px;border-radius:999px;white-space:nowrap}
.tier h3{font-size:1.15rem;margin-bottom:6px}
.tier .price{margin:6px 0 14px}
.tier .num{font-size:2rem;color:var(--accent);font-weight:700}
.tier .per{display:block;color:var(--muted);font-size:.85rem}
.tier ul{list-style:none;flex:1;margin-bottom:16px}
.tier li{padding:6px 0 6px 22px;position:relative;font-size:.88rem;border-bottom:1px dashed var(--line)}
.tier li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.tier .btn{text-align:center}

/* copyright badge */
.cr-badge{display:flex;gap:10px;align-items:center;background:#f3ede2;border:1px solid #e0d5c0;border-radius:10px;padding:10px 14px;margin:12px 0;font-size:.88rem}
.cr-seal{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--gold);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.1rem;font-weight:700}
.cr-badge small{color:var(--muted)}

/* patterns library layout (2026-09-29) */
.pat-layout{display:grid;grid-template-columns:220px 1fr;gap:32px;align-items:start;margin:26px 0}
.pat-side-inner{position:sticky;top:84px}   /* header高64+间距：滚动时侧栏钉住 */
.pat-filter-group{margin-bottom:26px}
.pat-filter-group h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:10px}
.pat-chips{display:flex;flex-direction:column;gap:7px}
.pat-chips .chip{text-align:left;font-size:.88rem;padding:7px 13px}
.pat-chips .chip b{float:right;color:inherit;opacity:.65;font-weight:400;font-size:.8rem}
.pat-chips .chip.dim{opacity:.5;pointer-events:none;border-style:dashed}
.pat-clear{display:inline-block;margin-top:4px;font-size:.85rem;color:var(--accent);border-bottom:1px solid transparent}
.pat-clear:hover{border-color:var(--accent)}
.pat-count{font-size:.9rem;margin-bottom:14px}
@media(max-width:860px){
  .pat-layout{grid-template-columns:1fr;gap:0}
  .pat-side-inner{position:sticky;top:64px;z-index:40;background:var(--bg);padding:10px 0 8px;border-bottom:1px solid var(--line);margin-bottom:14px}
  .pat-filter-group{margin-bottom:8px}
  .pat-filter-group h4{display:none}
  .pat-chips{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding-bottom:2px}
  .pat-chips::-webkit-scrollbar{display:none}
  .pat-chips .chip{flex:0 0 auto}
  .pat-chips .chip b{float:none;margin-left:4px}
}

/* ---- P0 inquiry & i18n (2026-10-27) ---- */
.site-head .wrap{position:relative}
.head-tools{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;gap:2px;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--bg)}
.lang-switch a{font-size:.72rem;padding:3px 8px;border-radius:999px;color:var(--muted);letter-spacing:.04em}
.lang-switch a.on{background:var(--ink);color:#fff}
.lang-switch a:hover{color:var(--ink)}
.nav{gap:16px}
.nav .inq-link{display:flex;align-items:center;gap:6px}
.inq-count{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 5px;border-radius:999px;background:var(--accent);color:#fff;font-size:.72rem;line-height:1;font-family:-apple-system,Segoe UI,Arial,sans-serif}
.inq-count.zero{background:var(--line);color:var(--muted)}
.mini-btn{position:absolute;top:8px;inset-inline-end:8px;z-index:2;background:rgba(255,255,255,.94);color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:5px 10px;font-size:.72rem;font-family:inherit;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.12)}
.mini-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.mini-btn.added{background:var(--accent);color:#fff;border-color:var(--accent)}
.card{position:relative}
.card .mini-btn{opacity:.92}
.fav-btn.on{background:var(--gold);border-color:var(--gold);color:#fff}
.inq-list{margin:18px 0 6px}
.inq-row{display:grid;grid-template-columns:1.4fr 100px 1.9fr auto;gap:14px;align-items:end;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}
.inq-name{display:flex;flex-direction:column;gap:2px;padding-bottom:4px}
.inq-name span{font-size:.78rem}
.inq-field{display:flex;flex-direction:column;gap:4px;font-size:.72rem;color:var(--muted)}
.inq-field input{padding:8px 10px;border:1px solid var(--line);border-radius:8px;font-size:.9rem;font-family:inherit;background:var(--bg);width:100%}
.link-btn{background:none;border:0;color:var(--muted);font-size:.8rem;cursor:pointer;text-decoration:underline;padding:8px 0;font-family:inherit}
.link-btn:hover{color:var(--accent)}
.notice{display:none;margin:12px 0;padding:10px 14px;border-radius:9px;font-size:.9rem}
.notice.ok{display:block;background:#eaf5ec;border:1px solid #bfe0c6;color:#256b25}
.notice.err{display:block;background:#fbe9e7;border:1px solid #efc4bd;color:#a5321f}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:0}
.small-btn{padding:8px 16px;font-size:.82rem}
.inquiry-grid .side-card:first-child{margin-top:26px}
@media(max-width:860px){
  .head-tools{gap:8px}
  .lang-switch a{font-size:.68rem;padding:2px 6px}
  .inq-row{grid-template-columns:1fr 1fr;gap:10px}
  .inq-row .inq-field.grow{grid-column:1/-1}
  .inq-row .link-btn{grid-column:2;text-align:end}
}
/* RTL：逻辑属性 + 局部镜像，保证阿语版不歪 */
[dir="rtl"] body{text-align:right}
[dir="rtl"] .nav,[dir="rtl"] .head-tools,[dir="rtl"] .hero-cta,[dir="rtl"] .hero-facts,[dir="rtl"] .foot-grid,[dir="rtl"] .pd-cta,[dir="rtl"] .chips{flex-direction:row-reverse}
[dir="rtl"] .pcard-meta,[dir="rtl"] .crumb,[dir="rtl"] .pat-chips .chip,[dir="rtl"] .form-card label{text-align:right}
[dir="rtl"] .pat-chips .chip b{float:left}
[dir="rtl"] .mini-btn{inset-inline-end:auto;inset-inline-start:8px}
[dir="rtl"] .inq-field input{direction:rtl}

/* ---- P1 OEM pages (2026-10-27) ---- */
.oem-hero{background:linear-gradient(160deg,#f3ede2 0%,#faf8f4 60%);border-bottom:1px solid var(--line);padding:34px 0 46px}
.oem-hero .crumb{margin:0 0 14px}
.oem-hero h1{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:14px;max-width:900px}
.oem-hero .lead{max-width:720px;color:var(--muted);font-size:1.06rem;margin-bottom:24px}
.oem-facts{list-style:none;display:flex;gap:38px;flex-wrap:wrap;margin-top:26px}
.oem-facts li{display:flex;flex-direction:column;min-width:110px}
.oem-facts b{font-size:1.35rem;color:var(--accent);line-height:1.2}
.oem-facts span{color:var(--muted);font-size:.82rem}
.table-wrap{width:100%;max-width:820px;overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-wrap .spec{min-width:520px}
.compare{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin:24px 0}
.compare .col{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
.compare .col.hot{border-color:var(--accent);box-shadow:0 4px 18px rgba(179,84,46,.10)}
.compare h3{font-size:1.1rem;margin-bottom:8px}
.compare .moq{font-size:.9rem;color:var(--accent);font-weight:700;margin:8px 0}
.compare p{font-size:.93rem;color:var(--muted)}
.faq{margin:18px 0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:14px 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin-top:10px;color:var(--muted);font-size:.94rem}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;margin:26px 0}
.split img{width:100%;border-radius:12px;aspect-ratio:4/3;object-fit:cover}
.split h2{margin-bottom:10px}
.split p{color:var(--muted)}
.link-row{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.cta-band{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:20px -20px 0;padding:46px 20px;text-align:center}
.cta-band h2{font-size:1.6rem;margin-bottom:8px}
.cta-band p{color:var(--muted);max-width:640px;margin:0 auto 18px}
.capacity-band{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:32px;margin:24px 0;text-align:center}
.capacity-band h2{font-size:1.35rem}
.capacity-band .big-num{font-size:2.4rem;color:var(--accent);font-weight:700;margin:6px 0 4px}
.capacity-band .big-num span{font-size:1rem;color:var(--muted);font-weight:400}
.capacity-band p{color:var(--muted);margin:4px 0}
@media(max-width:860px){.split{grid-template-columns:1fr;gap:22px}.oem-facts{gap:22px}}

/* RTL refinements: tables / lists / flows mirror correctly */
[dir="rtl"] .spec th,[dir="rtl"] .spec td{text-align:right}
[dir="rtl"] .prose ul,[dir="rtl"] .prose ol{margin:12px 22px 12px 0}
[dir="rtl"] .tier li,[dir="rtl"] .price-card li{padding:7px 26px 7px 0}
[dir="rtl"] .tier li:before,[dir="rtl"] .price-card li:before{left:auto;right:0}
[dir="rtl"] .oem-facts,[dir="rtl"] .link-row,[dir="rtl"] .compare{direction:rtl}
[dir="rtl"] .oem-hero h1,[dir="rtl"] .oem-hero .lead{text-align:right}
[dir="rtl"] .cta-band,[dir="rtl"] .capacity-band{text-align:center}
[dir="rtl"] .pat-chips .chip{text-align:right}
html,body{max-width:100%}
body{overflow-x:clip}