:root{--brand:#f28a00;--light:#fff3e2;--dark:#111827;--muted:#637083;--line:#e5eaf2;--soft:#f7faff;--action:#63c821}*{box-sizing:border-box}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--dark);background:#fff;line-height:1.55}a{text-decoration:none;color:inherit}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:22px;min-height:72px;padding:0 max(20px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;font-weight:900}.brand-logo{display:block;width:170px;max-width:42vw;height:auto}.brand-word{font-size:20px;font-weight:950;color:#111827;white-space:nowrap}nav{display:flex;gap:18px;font-weight:800;color:#354052}.lang{position:relative}.lang button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px;font-weight:800}.lang div{display:none;position:absolute;right:0;top:42px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 40px rgba(15,23,42,.12);padding:8px}.lang:hover div{display:grid}.lang a{padding:7px 24px 7px 10px;border-radius:8px}.lang a:hover{background:var(--light);color:var(--brand)}.hero{position:relative;isolation:isolate;overflow:hidden;min-height:620px;padding:92px 0 78px;background:#151515;color:#fff}.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(0,0,0,.72),rgba(0,0,0,.42) 45%,rgba(0,0,0,.12))}.hero-layout{display:block;max-width:980px}.kicker{display:none}h1{margin:0 0 18px;line-height:1.08;max-width:920px}h1 span{display:block;white-space:nowrap;font-size:clamp(32px,3.55vw,48px);font-weight:950;letter-spacing:0}.hero p{color:rgba(255,255,255,.9);font-size:18px;max-width:760px}.lead{color:var(--muted);font-size:18px}.btn,.mini-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 20px;font-weight:900;border:1px solid var(--line)}.btn.primary,.mini-btn{background:var(--brand);color:#fff;border-color:var(--brand)}.hero-stats{width:min(860px,100%);display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:16px}.hero-stats .stat-card{display:grid!important;grid-template-rows:auto auto;align-content:center;justify-items:center;row-gap:5px;min-height:76px;padding:12px 16px;border:1px solid rgba(255,255,255,.42);border-radius:18px;background:rgba(255,255,255,.9);box-shadow:0 14px 32px rgba(0,0,0,.12);color:#111827;text-align:center}.hero-stats .stat-card strong{display:block!important;font-size:20px;line-height:1.15;font-weight:950;white-space:nowrap}.hero-stats .stat-card:first-child strong{color:var(--brand)}.hero-stats .stat-card small{display:block!important;font-size:12px;line-height:1.25;font-weight:800;color:#5b6472;white-space:nowrap}.search-hub{padding:24px 0 46px}.global-search{width:min(860px,100%);margin:22px 0 0;display:grid;grid-template-columns:1fr auto;align-items:center;gap:12px;padding:6px 7px 6px 24px;border:4px solid rgba(255,255,255,.92);border-radius:999px;background:#fff;box-shadow:0 18px 48px rgba(0,0,0,.2)}.global-search input{border:0;outline:0;font:inherit;min-height:46px;color:#334155}.global-search button{border:0;border-radius:999px;background:var(--action);color:#fff;font-weight:950;min-width:112px;padding:15px 24px;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease}.global-search button:hover{transform:translateY(-3px) scale(1.04);box-shadow:0 14px 24px rgba(99,200,33,.34);background:#58bd18}.global-search button:active{transform:translateY(1px) scale(.96);box-shadow:0 7px 12px rgba(99,200,33,.22)}.keyword-grid a,.brand-grid a{border:1px solid var(--line);border-radius:999px;background:#fff;padding:8px 13px;font-weight:850}.section{padding:50px 0}.section.soft{background:var(--soft)}.section-head{text-align:center;margin-bottom:20px}.category-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.category-card,.resource-card,.product-card,details{border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 8px 18px rgba(15,23,42,.035)}.category-card{min-height:118px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:12px 10px}.category-card img{width:48px;height:48px;border-radius:10px;object-fit:cover;box-shadow:0 6px 14px rgba(15,23,42,.10)}.category-card strong{font-size:14px;line-height:1.15}.category-card span{display:none}.resource-card span,.product-card p,details p,footer p,.article p{color:var(--muted)}.keyword-grid,.brand-grid{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.resource-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.resource-card{padding:18px;display:grid;gap:8px}.product-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.product-card{overflow:hidden}.product-card img{width:100%;display:block;aspect-ratio:1.55/1;object-fit:cover}.product-card div{padding:18px}.product-card span{color:var(--brand);font-weight:950;text-transform:uppercase;font-size:12px}.product-card h3{margin:8px 0}.faq-list{display:grid;gap:12px;max-width:900px;margin:auto}summary{cursor:pointer;padding:18px 20px;font-weight:950}details p{margin:0;padding:0 20px 18px}.sub-hero{padding:72px 0;background:linear-gradient(180deg,var(--light),#fff);text-align:center}.sub-hero .wrap{display:grid;justify-items:center;text-align:center}.sub-hero h1{margin-left:auto;margin-right:auto;text-align:center}.sub-hero p{max-width:820px;text-align:center}.article{max-width:920px;margin:auto}.footer-grid{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center}.footer-grid p{margin:0;max-width:980px}footer{padding:34px 0;background:#0f172a;color:#dbe5f4}.floating-contact{position:fixed;right:22px;bottom:24px;z-index:9999;display:flex;flex-direction:column;gap:10px;align-items:center}.floating-contact-btn{display:block;width:40px;height:40px;padding:0!important;margin:0!important;border:0!important;border-radius:0!important;background:transparent!important;box-shadow:none!important;line-height:0!important;overflow:visible!important;transition:transform .16s ease}.floating-contact-btn:hover{transform:translateY(-2px)}.floating-contact-btn img{display:block;width:40px!important;height:40px!important;object-fit:contain;border:0!important;border-radius:0!important;background:transparent!important;box-shadow:none!important}@media(max-width:900px){.site-header{align-items:flex-start;flex-direction:column;padding:14px 18px}nav{overflow-x:auto;width:100%}.brand-word{font-size:18px}.product-rail,.resource-grid{grid-template-columns:1fr}.hero-stats{grid-template-columns:1fr;gap:10px}h1 span{white-space:normal;font-size:clamp(32px,8vw,44px)}.category-grid{grid-template-columns:repeat(2,1fr)}.global-search{border-radius:20px;grid-template-columns:1fr;margin-top:18px;padding:10px}.global-search button{width:100%}}
.content-page{max-width:1120px;margin:0 auto;padding:72px 22px}.seo-article{display:grid;gap:26px}.seo-article .lead{max-width:900px;color:#344054;font-size:19px}.article-section{padding:24px;background:#fff;border:1px solid rgba(15,23,42,.12);border-radius:14px;box-shadow:0 14px 30px rgba(15,23,42,.06)}.article-section h2{margin:0 0 12px;font-size:clamp(25px,3vw,34px)}.article-section p{margin:0 0 14px}.article-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.article-note{background:#fff7df}.article-links,.term-list,.recommend-list{display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:14px 0 0;list-style:none}.article-links a,.term-list a,.recommend-list a{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:#fff1b8;color:#111827;font-weight:800}.article-links a:hover,.term-list a:hover,.recommend-list a:hover{background:#facc15}@media(max-width:700px){.article-columns{grid-template-columns:1fr}.content-page{padding:48px 16px}}

/* SpanBuy homepage category grouping: 12 main cards, text-only subcategories. */
.category-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.category-card-group{justify-content:center}
.category-main{display:flex;flex-direction:column;align-items:center;gap:6px;color:inherit;text-decoration:none}
.category-subnav{display:flex!important;align-items:center;justify-content:center;flex-wrap:wrap;gap:5px 14px;margin-top:1px;font-size:12px;font-weight:800;line-height:1.25}
.category-subnav a{color:#536070;text-decoration:none}
.category-subnav a:hover{color:var(--brand);text-decoration:underline}
@media(max-width:900px){.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.category-subnav{gap:4px 9px;font-size:11px}}

/* SpanBuy category-only layout update: six cards per desktop row, two rows total. */
#categories .section-head h2{margin:0;font-size:clamp(34px,3.3vw,44px);font-weight:950;line-height:1.12}
#categories .category-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
#categories .category-card{min-height:142px;justify-content:center;padding:16px 10px}
#categories .category-card strong{font-size:16px;line-height:1.2}
#categories .category-main{gap:8px}
#categories .category-subnav{display:flex!important;align-items:center;justify-content:center;gap:0;margin-top:2px;min-height:18px;font-size:12px;font-weight:800;line-height:1.3}
#categories .category-subnav a+a::before{content:"\00b7";display:inline-block;margin:0 6px;color:#536070;text-decoration:none}
@media(max-width:900px){#categories .section-head h2{font-size:clamp(28px,8vw,36px)}#categories .category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}#categories .category-card{min-height:132px;padding:13px 8px}#categories .category-card strong{font-size:14px}#categories .category-subnav{font-size:11px}}

/* SEO/mobile layout hardening: prevent horizontal overflow and keep the first screen compact. */
html,body{max-width:100%;overflow-x:hidden}
img{max-width:100%}
@media(max-width:900px){.hero{min-height:0;padding:58px 0 52px}.hero p{font-size:16px}.section{padding:42px 0}.site-header nav{padding-bottom:2px;-webkit-overflow-scrolling:touch}}
@media(max-width:520px){.wrap{width:min(100% - 24px,1180px)}.hero{padding:46px 0 42px}.section{padding:36px 0}.site-header{gap:12px}.brand-logo{width:150px}.global-search input{width:100%}}