/* ============================================================
   FUMAVINA — Custom Printed Textiles
   Layout system: RAYZON-style (centered section titles,
   uniform grids, generous whitespace)
   Palette & type: 家纺B2B独立站-网页设计规范-v2.md
   ============================================================ */

:root{
  --paper:#FBFAF7;
  --bone:#F2EEE7;
  --ink:#1C1B18;
  --muted:#6E6C64;
  --faint:#8A857A;
  --green:#1E3B31;
  --green-dark:#16291F;
  --navy:#1B3149;
  --line:#DFDAD1;
  --line-strong:#C9C3B7;
  --white:#FFFFFF;

  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;

  --wrap:1200px;
  --ease:200ms cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font);font-size:16px;line-height:1.7;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.02em;line-height:1.12;}
p{margin:0;}

.container{max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* ---------- buttons ---------- */
.btn-primary,.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 32px;border-radius:6px;font-weight:600;font-size:15px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
  cursor:pointer;border:2px solid transparent;
}
.btn-primary{background:var(--green);color:var(--paper);border-color:var(--green);}
.btn-primary:hover{background:var(--green-dark);border-color:var(--green-dark);}
.btn-secondary{background:transparent;color:var(--green);border-color:var(--green);}
.btn-secondary:hover{background:var(--green);color:var(--paper);}

a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--green);outline-offset:3px;
}

/* ---------- nav ---------- */
nav{
  position:sticky;top:0;z-index:100;height:72px;
  background:var(--paper);border-bottom:1px solid var(--line);
  display:flex;align-items:center;
}
nav .container{display:flex;align-items:center;justify-content:flex-start;width:100%;}
.logo{font-size:20px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:34px;list-style:none;margin:0 0 0 auto;padding:0;}
.nav-links a{font-size:14.5px;color:#3E3C36;transition:color var(--ease);}
.nav-links a:hover{color:var(--green);}
.nav-links a.active{color:var(--green);font-weight:600;}
.nav-cta{display:inline-block;background:var(--green);color:var(--paper)!important;padding:10px 22px;border-radius:6px;font-weight:600;font-size:14px;}
.nav-cta:hover{background:var(--green-dark);}
.nav-toggle{display:none;background:none;border:none;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);}
.nav-menu{display:none;}

/* ---------- hero (home) ---------- */
.hero{display:grid;grid-template-columns:46% 54%;min-height:620px;}
.hero-copy{
  display:flex;flex-direction:column;justify-content:center;
  padding:72px 72px 72px max(24px,calc((100vw - var(--wrap))/2 + 24px));
  background:var(--paper);
}
.eyebrow{
  font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);margin-bottom:22px;
}
.hero-title{font-size:clamp(34px,3.4vw,48px);margin:0 0 24px;}
.hero-lede{font-size:17px;line-height:1.7;color:#4A4842;max-width:46ch;margin:0;}
.hero-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:36px;}
.hero-media{position:relative;overflow:hidden;background:var(--bone);}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:56% 50%;}

/* ---------- trust bar ---------- */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0;background:var(--white);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center;}
.trust-item .num{font-size:30px;font-weight:600;letter-spacing:-0.02em;color:var(--green);margin-bottom:6px;}
.trust-item .label{font-size:13.5px;color:var(--muted);line-height:1.5;}

/* ---------- section common ---------- */
section{padding:88px 0;}
.section-tint{background:var(--bone);}
.section-title{text-align:center;max-width:720px;margin:0 auto 52px;}
.section-title .eyebrow{text-align:center;}
.section-title h2{font-size:clamp(28px,3vw,38px);margin-bottom:14px;}
.section-title p{font-size:16.5px;color:var(--muted);line-height:1.7;}

/* ---------- product / category cards ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.product-grid.cols-5{grid-template-columns:repeat(5,1fr);}
.product-grid.cols-3{grid-template-columns:repeat(3,1fr);}
.product-grid.cols-2{grid-template-columns:repeat(2,1fr);max-width:820px;margin:0 auto;}
.product-card[id]{scroll-margin-top:92px;}
.product-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:box-shadow var(--ease),transform var(--ease);
}
.product-card:hover{box-shadow:0 10px 32px rgba(28,27,24,.09);transform:translateY(-4px);}
.card-img{aspect-ratio:1/1;overflow:hidden;background:var(--bone);}
.card-img img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.card-body p{font-size:13.5px;color:var(--muted);line-height:1.55;flex:1;}
.card-link{margin-top:16px;font-size:13.5px;font-weight:600;color:var(--green);}
.card-link::after{content:" \2192";}

/* ---------- why (dark green band) ---------- */
.why{background:var(--green);color:var(--paper);}
.why .section-title h2{color:var(--paper);}
.why .section-title p{color:rgba(251,250,247,.72);}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px 64px;max-width:980px;margin:0 auto;}
.why-item{display:flex;align-items:flex-start;gap:16px;}
.why-check{color:#A9C0A8;font-size:20px;flex-shrink:0;margin-top:2px;font-weight:600;}
.why-body{display:flex;flex-direction:column;gap:6px;}
.why-body b{font-size:16.5px;font-weight:600;color:var(--paper);line-height:1.4;}
.why-body span{font-size:14px;color:rgba(251,250,247,.72);line-height:1.65;}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;}
.step{text-align:center;}
.step-num{
  width:56px;height:56px;border-radius:50%;background:var(--green);color:var(--paper);
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:600;
  margin:0 auto 20px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.6;}

/* ---------- cta band ---------- */
.cta-section{background:var(--bone);text-align:center;padding:96px 0;}
.cta-section h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px;}
.cta-section p{font-size:16.5px;color:var(--muted);margin-bottom:34px;}
.cta-section .swatch-note{font-size:13px;color:var(--faint);margin-top:22px;margin-bottom:0;}

/* ---------- page header (subpages) ---------- */
.page-header{background:var(--bone);padding:72px 0 64px;text-align:center;border-bottom:1px solid var(--line);}
.page-header h1{font-size:clamp(30px,3.4vw,40px);margin-bottom:14px;}
.page-header p{font-size:16.5px;color:var(--muted);max-width:680px;margin:0 auto;line-height:1.7;}

/* ---------- about split ---------- */
.about-split{display:flex;gap:56px;align-items:center;}
.about-split.reverse{flex-direction:row-reverse;}
.about-split .split-text{flex:1;}
.about-split .split-img{flex:1;}
.about-split .split-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;}
.split-text .eyebrow{margin-bottom:14px;}
.split-text h2{font-size:clamp(24px,2.6vw,32px);margin:0 0 12px;}
.split-lead{font-size:18px;font-weight:600;color:var(--green);margin:0 0 12px;}
.split-text p{font-size:15.5px;color:var(--muted);line-height:1.8;margin-bottom:14px;}

/* ---------- img placeholder (factory photos pending) ---------- */
.img-ph{
  aspect-ratio:4/3;border-radius:12px;
  border:2px dashed var(--line-strong);
  background:var(--white);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;color:var(--faint);text-align:center;padding:24px;
}
.img-ph .ph-icon{font-size:32px;opacity:.45;line-height:1;}
.img-ph .ph-text{font-size:12.5px;letter-spacing:.05em;}

/* ---------- departments grid ---------- */
.dept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1000px;margin:0 auto;}
.dept-card{background:var(--white);border:1px solid var(--line);border-radius:12px;overflow:hidden;padding:0;}
.dept-card .dept-img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;}
.dept-card .dept-body{padding:28px 26px;}
.dept-num{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--green);margin-bottom:16px;}
.dept-card h3{font-size:19px;margin-bottom:12px;}
.dept-card p{font-size:14.5px;color:var(--muted);line-height:1.7;margin:0;}
@media (max-width:960px){.dept-grid{grid-template-columns:1fr;max-width:560px;}}

/* ---------- factory flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 24px;max-width:1000px;margin:0 auto;}
.flow-item{margin:0;}
.flow-item img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;display:block;}
.flow-item figcaption{margin-top:12px;display:flex;flex-direction:column;gap:6px;}
.flow-item figcaption b{font-size:15px;font-weight:600;color:var(--ink);}
.flow-item figcaption span{font-size:13px;color:var(--muted);line-height:1.55;}
@media (max-width:960px){.flow-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.flow-grid{grid-template-columns:1fr;}}

/* ---------- factory equipment ---------- */
.equip-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:900px;margin:0 auto;}
.equip-item{margin:0;}
.equip-item img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;display:block;}
.equip-item figcaption{margin-top:12px;font-size:14px;font-weight:600;color:var(--ink);}
@media (max-width:640px){.equip-grid{grid-template-columns:1fr;}}

/* ---------- content / list ---------- */
.check-list{list-style:none;margin:0;padding:0;max-width:820px;margin:0 auto;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.7;padding:12px 0;border-bottom:1px solid var(--line);color:#3E3C36;}
.check-list li:first-child{border-top:1px solid var(--line);}
.check-list .ck{color:var(--green);font-weight:600;flex-shrink:0;}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px;background:var(--white);border-radius:12px;overflow:hidden;border:1px solid var(--line);}
.spec-table th{background:var(--green);color:var(--paper);text-align:left;padding:14px 18px;font-weight:600;}
.spec-table td{padding:14px 18px;border-top:1px solid var(--line);color:#3E3C36;}
.spec-table tr:first-child td{border-top:0;}
.spec-table td:first-child{font-weight:600;color:var(--ink);width:34%;background:var(--bone);}

/* ---------- product sub-group ---------- */
.group-head{margin:0 0 28px;text-align:center;}
.group-head h3{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--green);position:relative;padding:0 22px;}
.group-head h3::before,.group-head h3::after{content:'';position:absolute;top:50%;width:44px;height:1px;background:var(--line-strong);}
.group-head h3::before{right:100%;}
.group-head h3::after{left:100%;}
.group-block{margin-bottom:64px;scroll-margin-top:84px;}
.group-block:last-child{margin-bottom:0;}

/* ---------- swatch cta ---------- */
.swatch-cta{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:8px;}

/* ---------- faq ---------- */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);padding:22px 0;}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{font-size:16px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-size:24px;color:var(--green);transition:transform .2s;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .answer{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- contact form ---------- */
.contact-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:start;}
.contact-form{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:34px;}
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;}
.form-group label .req{color:#C0392B;}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:8px;
  font-size:15px;font-family:inherit;color:var(--ink);background:var(--white);transition:border-color .2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--green);}
.form-group textarea{min-height:120px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.hp{position:absolute;left:-9999px;}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;line-height:1.55;}

/* ---------- file upload ---------- */
.file-upload{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.file-input-hidden{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;}
.file-btn{background:var(--white);color:var(--green);border:1.5px solid var(--green);border-radius:8px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--ease);}
.file-btn:hover{background:var(--green);color:var(--paper);}
.file-name{font-size:13px;color:var(--green);font-weight:500;}
.contact-side h3{font-size:20px;margin-bottom:14px;}
.contact-side>p{font-size:14.5px;color:var(--muted);line-height:1.7;margin-bottom:24px;}
.contact-item{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px;}
.contact-item .icon{
  width:42px;height:42px;border-radius:50%;background:var(--bone);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.contact-item strong{display:block;font-size:14.5px;margin-bottom:2px;}
.contact-item span,.contact-item a{font-size:14px;color:var(--muted);}
.contact-item a:hover{color:var(--green);}

/* ---------- footer ---------- */
footer{background:var(--ink);color:rgba(251,250,247,.62);padding:64px 0 24px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:44px;}
.footer-brand .logo{color:var(--paper);display:block;margin-bottom:10px;}
.footer-brand p{line-height:1.75;font-size:13.5px;}
.footer-col h4{color:var(--paper);font-size:13px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:9px;}
.footer-col a{font-size:13.5px;transition:color .2s;}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{border-top:1px solid rgba(251,250,247,.14);padding-top:22px;text-align:center;font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;max-width:980px;margin:0 auto;}
.news-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:12px;padding:30px;
  transition:box-shadow var(--ease),transform var(--ease);
}
.news-card:hover{box-shadow:0 10px 32px rgba(28,27,24,.09);transform:translateY(-4px);}
.news-tag{font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--green);margin-bottom:14px;}
.news-card h3{font-size:18px;line-height:1.4;margin-bottom:10px;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--green);}
.news-card p{font-size:14px;color:var(--muted);line-height:1.65;flex:1;}
.news-card .read-more{margin-top:18px;font-size:13.5px;font-weight:600;color:var(--green);}
.news-card .read-more::after{content:" \2192";}

/* ---------- article ---------- */
.article{max-width:760px;margin:0 auto;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:28px;font-size:13px;color:var(--faint);}
.article-meta .tag{font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--green);font-size:12px;}
.article .lede{font-size:19px;line-height:1.7;color:#3E3C36;font-weight:500;margin-bottom:32px;}
.article h2{font-size:26px;margin:44px 0 16px;}
.article h3{font-size:19px;margin:30px 0 12px;}
.article p{font-size:16px;line-height:1.85;color:#3E3C36;margin-bottom:18px;}
.article ul{margin:0 0 18px;padding-left:22px;}
.article li{font-size:16px;line-height:1.8;color:#3E3C36;margin-bottom:8px;}
.article strong{color:var(--ink);}
.article table{margin:24px 0;}
.article .back-link{display:inline-block;font-size:14px;font-weight:600;color:var(--green);margin-bottom:8px;}
.article .back-link::before{content:"\2190 ";}

@media (max-width:960px){
  .news-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .news-grid{grid-template-columns:1fr;}
}

/* ---------- mobile action bar ---------- */
.mbar{display:none;}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero{grid-template-columns:1fr;min-height:0;}
  .hero-copy{padding:56px 24px 56px;}
  .hero-media{min-height:340px;}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .product-grid,.product-grid.cols-5{grid-template-columns:repeat(2,1fr);}
  .product-grid.cols-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .why-grid{grid-template-columns:1fr;}
  .contact-wrap{grid-template-columns:1fr;}
  .about-split{flex-direction:column;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  section{padding:64px 0;}
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-menu{
    display:none;position:fixed;inset:0;background:var(--paper);z-index:99;
    flex-direction:column;justify-content:center;padding:0 28px;
  }
  .nav-menu.is-open{display:flex;}
  .nav-menu a{font-size:24px;font-weight:500;padding:14px 0;border-bottom:1px solid var(--line);}
  .nav-menu a.btn-primary{margin-top:28px;text-align:center;border:none;}
  body.no-scroll{overflow:hidden;}
  .product-grid,.product-grid.cols-5,.product-grid.cols-3,.product-grid.cols-2{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr 1fr;}
  .form-row{grid-template-columns:1fr;}
  .mbar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:80;
    background:var(--paper);border-top:1px solid var(--line);padding:10px 12px;gap:8px;
  }
  .mbar .btn-primary,.mbar .btn-secondary{flex:1;padding:12px 8px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* ---------- category hub (products.html) ---------- */
.category-list{display:flex;flex-direction:column;gap:26px;max-width:980px;margin:0 auto;}
.category-card{display:grid;grid-template-columns:300px 1fr;background:var(--white);border:1px solid var(--line);border-radius:14px;overflow:hidden;text-decoration:none;transition:border-color var(--ease),box-shadow var(--ease);}
.category-card:hover{border-color:var(--green);box-shadow:0 10px 30px rgba(28,27,24,.07);}
.cat-img{aspect-ratio:1/1;overflow:hidden;background:var(--bone);}
.cat-img img{width:100%;height:100%;object-fit:cover;display:block;}
.cat-body{padding:34px 40px;display:flex;flex-direction:column;justify-content:center;}
.cat-body h3{font-size:24px;margin:0 0 10px;color:var(--ink);}
.cat-desc{font-size:15px;color:var(--muted);line-height:1.65;margin:0 0 18px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;}
.cat-tags span{font-size:12px;padding:6px 14px;border-radius:20px;background:var(--bone);color:#3E3C36;}
.cat-more{font-size:14px;font-weight:600;color:var(--green);}
.category-card:hover .cat-more{text-decoration:underline;}

/* ---------- category switcher (品类页顶部) ---------- */
.cat-nav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:28px 0 0;}
.cat-nav a{font-size:13.5px;padding:8px 16px;border:1px solid var(--line-strong);border-radius:22px;color:var(--muted);text-decoration:none;transition:all var(--ease);white-space:nowrap;}
.cat-nav a:hover{border-color:var(--green);color:var(--green);}
.cat-nav a.active{background:var(--green);color:var(--paper);border-color:var(--green);}

/* ---------- pagination ---------- */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;margin:44px 0 0;}
.pagination button{min-width:44px;height:44px;padding:0 14px;border:1px solid var(--line-strong);background:var(--white);color:var(--ink);border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;transition:border-color var(--ease),background var(--ease),color var(--ease);}
.pagination button:hover{border-color:var(--green);color:var(--green);}
.pagination button.active{background:var(--green);border-color:var(--green);color:var(--paper);}
.pagination button:disabled{opacity:.35;cursor:default;pointer-events:none;}

@media (max-width:960px){
  .category-card{grid-template-columns:220px 1fr;}
  .cat-body{padding:28px;}
}
@media (max-width:640px){
  .category-card{grid-template-columns:1fr;}
  .cat-img{aspect-ratio:16/9;}
  .cat-nav{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;padding:0 4px 8px;-webkit-overflow-scrolling:touch;}
  .cat-nav a{flex-shrink:0;}
}