:root{--ink:#16181c;--muted:#666b74;--line:#e3e5e8;--paper:#fff;--soft:#f5f6f7;--red:#c91e2b;--green:#196c4a;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap,.header-inner,.footer-inner{width:min(var(--max),calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.header-inner{height:68px;display:flex;align-items:center;gap:40px}.brand{font-size:21px;font-weight:800}.brand span{display:block;color:var(--muted);font-size:10px;font-weight:500}.header-inner nav{display:flex;gap:28px;font-size:14px}.header-inner nav a:hover{color:var(--red)}.search-toggle{margin-left:auto;width:38px;height:38px;border:1px solid var(--line);background:#fff;font-size:24px;cursor:pointer}.search-panel{padding:18px max(20px,calc((100% - var(--max))/2));background:var(--soft);border-top:1px solid var(--line)}.search-panel label{display:block;font-size:13px;color:var(--muted)}.search-panel input{width:100%;margin-top:5px;padding:12px;border:1px solid #bbb;font-size:16px}.search-result{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.intro{padding:54px 0 42px;border-bottom:1px solid var(--line)}.intro-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:70px;align-items:end}.eyebrow,.product-meta{margin:0 0 8px;color:var(--red);font-size:12px;font-weight:700}.intro h1{margin:0;font-size:52px;line-height:1.08;letter-spacing:0}.intro-copy{max-width:620px;margin:18px 0 0;color:var(--muted);font-size:18px}.quick-stats{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.quick-stats div{padding:20px;border-right:1px solid var(--line)}.quick-stats div:last-child{border:0}.quick-stats strong,.quick-stats span{display:block}.quick-stats strong{font-size:26px}.quick-stats span{color:var(--muted);font-size:12px}.category-band,.guide-band,.content-band{background:var(--soft);padding:45px 0}.section-heading{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px}.section-heading h2{margin:0;font-size:26px}.section-heading p,.section-heading a{color:var(--muted);font-size:13px}.category-grid{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid #d5d7da;border-left:1px solid #d5d7da}.category-grid a{min-height:112px;padding:18px;border-right:1px solid #d5d7da;border-bottom:1px solid #d5d7da;background:#fff}.category-grid a:hover{border-bottom-color:var(--red)}.category-grid span,.category-grid strong,.category-grid small{display:block}.category-grid strong{margin-top:15px;font-size:21px}.category-grid small{color:var(--muted)}.featured,.related,.listing{padding-top:48px;padding-bottom:62px}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px 18px}.product-card{min-width:0;border-bottom:1px solid var(--line)}.product-image{display:block;aspect-ratio:1;background:#f7f7f7;overflow:hidden}.product-image img{width:100%;height:100%;object-fit:contain;transition:transform .25s}.product-card:hover img{transform:scale(1.025)}.product-card-body{padding:14px 2px 18px}.product-card h3{height:48px;margin:0 0 13px;overflow:hidden;font-size:15px;line-height:1.6}.price-row{display:flex;align-items:baseline;justify-content:space-between;gap:8px}.price-row strong{color:var(--red);font-size:20px}.price-row span{color:var(--muted);font-size:11px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#d9dbde;border:1px solid #d9dbde}.guide-grid a{padding:26px;background:#fff}.guide-grid span{color:var(--green);font-size:12px;font-weight:700}.guide-grid h3{margin:7px 0;font-size:19px}.guide-grid p{margin:0;color:var(--muted);font-size:14px}.breadcrumbs{width:min(var(--max),calc(100% - 40px));margin:22px auto 0;color:var(--muted);font-size:12px}.breadcrumbs i{padding:0 8px;font-style:normal}.product-detail{display:grid;grid-template-columns:minmax(360px,1fr) 1.05fr;gap:70px;padding-top:28px;padding-bottom:62px}.detail-media{aspect-ratio:1;background:#f7f7f7}.detail-media img{width:100%;height:100%;object-fit:contain}.detail-summary h1{margin:0 0 24px;font-size:28px;line-height:1.45}.detail-price{padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.detail-price span,.detail-price small{color:var(--muted)}.detail-price strong{display:block;color:var(--red);font-size:36px}.facts{margin:20px 0}.facts div{display:grid;grid-template-columns:110px 1fr;padding:8px 0}.facts dt{color:var(--muted)}.facts dd{margin:0}.jd-button{display:flex;justify-content:space-between;align-items:center;width:100%;padding:14px 18px;background:var(--red);color:#fff;font-weight:700}.jd-button.disabled{background:#999}.disclosure{color:var(--muted);font-size:12px}.reading-grid{display:grid;grid-template-columns:2fr 1fr;gap:65px}.reading-grid h2{font-size:21px}.reading-grid li{margin:8px 0}.reading-grid aside{padding-left:28px;border-left:1px solid #ccc}.listing-head{padding:30px 0}.listing-head h1{margin:0;font-size:34px}.listing-head p{color:var(--muted)}.article,.article-index{max-width:800px;padding-top:42px;padding-bottom:80px}.article h1,.article-index h1{font-size:38px;line-height:1.35}.lead{font-size:18px;color:var(--muted)}.article h2{margin-top:42px}.article li{margin:20px 0}.article li p{margin:4px 0;color:var(--muted)}.guide-list{margin-top:35px;border-top:1px solid var(--line)}.guide-list a{display:block;padding:24px 0;border-bottom:1px solid var(--line)}.guide-list h2{margin:0;font-size:20px}.guide-list p{color:var(--muted)}.guide-list span{color:var(--red);font-size:13px}footer{padding:38px 0;background:#202328;color:#e8e8e8}.footer-inner{display:grid;grid-template-columns:160px 1fr 1fr;gap:35px}.footer-inner p{margin:0;color:#b8bbc0;font-size:12px}@media(max-width:900px){.category-grid{grid-template-columns:repeat(3,1fr)}.product-grid{grid-template-columns:repeat(3,1fr)}.product-detail{gap:30px}.footer-inner{grid-template-columns:1fr}}@media(max-width:640px){.wrap,.header-inner,.footer-inner,.breadcrumbs{width:min(100% - 24px,var(--max))}.header-inner{height:60px;gap:14px}.header-inner nav{display:none}.intro{padding:34px 0}.intro-grid,.product-detail,.reading-grid{grid-template-columns:1fr;gap:26px}.intro h1{font-size:40px}.intro-copy{font-size:15px}.quick-stats div{padding:12px}.quick-stats strong{font-size:20px}.category-grid{grid-template-columns:repeat(2,1fr)}.category-grid a{min-height:92px;padding:13px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 10px}.product-card h3{height:67px;font-size:14px}.price-row{display:block}.guide-grid{grid-template-columns:1fr}.product-detail{padding-top:18px}.detail-summary h1{font-size:23px}.reading-grid aside{padding:0;border:0}.article h1,.article-index h1{font-size:29px}.footer-inner{display:block}.footer-inner p{margin-top:14px}}
.latest-article-grid,.category-article-grid,.related-article-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;border:1px solid #d9dbde;background:#d9dbde}.latest-article,.category-article,.related-article{min-width:0;padding:22px;background:#fff}.latest-article span,.category-article span,.related-article span{color:var(--red);font-size:12px;font-weight:700}.latest-article h3,.category-article h3,.related-article h3{margin:7px 0;font-size:18px;line-height:1.5;overflow-wrap:anywhere}.latest-article p,.category-article p,.related-article p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:13px;-webkit-box-orient:vertical;-webkit-line-clamp:3}.category-article-band,.related-articles{padding:44px 0;background:var(--soft)}.article-directory{padding-top:42px;padding-bottom:72px}.article-directory header{max-width:760px;margin-bottom:30px}.article-directory h1{margin:0;font-size:38px}.article-directory header>p:last-child{color:var(--muted)}.article-list{border-top:1px solid var(--line)}.article-list-item{display:grid;grid-template-columns:180px minmax(0,1fr);column-gap:28px;padding:24px 0;border-bottom:1px solid var(--line)}.article-list-item span{grid-row:1/3;color:var(--red);font-size:12px;font-weight:700}.article-list-item h3{min-width:0;margin:0;font-size:20px;line-height:1.45;overflow-wrap:anywhere}.article-list-item p{margin:7px 0 0;color:var(--muted);font-size:14px}.editorial-article{padding-top:36px;padding-bottom:72px}.article-header{max-width:900px;margin-bottom:38px}.article-header h1{max-width:880px;margin:0;font-size:38px;line-height:1.35;overflow-wrap:anywhere}.article-deck{max-width:800px;margin:17px 0;color:var(--muted);font-size:17px}.article-dates{display:flex;gap:20px;color:var(--muted);font-size:12px}.article-layout{display:grid;grid-template-columns:190px minmax(0,760px);gap:58px;align-items:start}.article-toc{position:sticky;top:92px;padding:16px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}.article-toc ol{margin:10px 0 0;padding-left:20px}.article-toc li{margin:7px 0;color:var(--muted);font-size:12px}.article-content{min-width:0}.article-intro{margin:0 0 34px;padding-left:20px;border-left:3px solid var(--red);font-size:18px}.article-content section{scroll-margin-top:90px}.article-content h2{margin:44px 0 15px;font-size:24px}.article-content p{overflow-wrap:anywhere}.article-faq details{border-top:1px solid var(--line)}.article-faq details:last-child{border-bottom:1px solid var(--line)}.article-faq summary{padding:16px 0;font-weight:700;cursor:pointer}.article-faq details p{margin:0 0 18px;color:var(--muted)}.article-summary{margin-top:48px;padding:24px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}.article-summary h2{margin-top:0}.article-summary a{color:var(--red);font-weight:700}.related-articles{border-top:1px solid var(--line)}
@media(max-width:900px){.latest-article-grid,.category-article-grid,.related-article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:150px minmax(0,1fr);gap:32px}}
@media(max-width:640px){body{overflow-x:hidden}.latest-article-grid,.category-article-grid,.related-article-grid{grid-template-columns:1fr}.latest-article,.category-article,.related-article{padding:18px}.article-directory h1,.article-header h1{font-size:28px}.article-list-item{display:block}.article-list-item h3{margin-top:6px;font-size:18px}.article-layout{display:block}.article-toc{position:static;margin-bottom:30px}.article-dates{display:block}.article-dates time{display:block}.article-intro{font-size:16px}.article-content h2{font-size:21px}.editorial-article{padding-top:26px}}

/* Visual refresh: editorial appliance buying guide */
:root{--ink:#17191d;--muted:#5f6670;--line:#dfe2e6;--paper:#fff;--soft:#f4f6f7;--red:#c8102e;--green:#147a62;--max:1200px}
body{overflow-wrap:break-word;background:#fff;color:var(--ink)}
.site-header{background:rgba(255,255,255,.98);backdrop-filter:none;border-top:3px solid var(--red)}
.header-inner{height:72px;gap:46px}
.brand{display:flex;align-items:center;gap:10px;font-size:inherit}
.brand-mark{display:grid;width:34px;height:34px;place-items:center;background:var(--red);color:#fff;font-size:18px;font-weight:800}
.brand .brand-mark{display:grid;color:#fff;font-size:18px;font-weight:800}
.brand-copy,.brand-copy strong,.brand-copy small{display:block}
.brand-copy strong{font-size:18px;line-height:1.2}
.brand-copy small{margin-top:3px;color:var(--muted);font-size:10px;font-weight:500}
.primary-nav{height:100%;align-items:center}
.primary-nav a{display:flex;height:100%;align-items:center;border-bottom:2px solid transparent;font-weight:600}
.primary-nav a:hover{border-bottom-color:var(--red)}
.search-toggle{border-radius:4px;color:var(--ink)}
.intro{padding:44px 0 36px;background:#fff}
.intro-grid{align-items:center}
.intro h1{font-size:34px}
.intro-copy{color:#4f5660}
.quick-stats{border-top:3px solid var(--ink);background:var(--soft)}
.category-band,.guide-band,.content-band,.category-article-band,.related-articles{background:var(--soft)}
.category-grid a{border-radius:0}
.category-grid a:hover{box-shadow:inset 0 -3px var(--red)}
.section-heading{padding-bottom:12px;border-bottom:2px solid var(--ink)}
.section-heading h2{font-size:24px}
.product-grid{grid-auto-rows:1fr;gap:24px 18px}
.product-card{display:flex;min-width:0;height:100%;flex-direction:column;border:1px solid var(--line);border-radius:4px;background:#fff;overflow:hidden}
.product-image{aspect-ratio:4/3;height:220px;padding:14px;background:#f6f7f8}
.product-card-body{display:flex;min-height:210px;flex:1;flex-direction:column;padding:16px}
.product-card h3{display:-webkit-box;height:48px;margin:0 0 12px;overflow:hidden;font-size:15px;line-height:1.6;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.price-row{margin-top:auto;padding-top:10px;border-top:1px solid var(--line)}
.product-card-link{display:flex;min-height:40px;margin-top:12px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);color:var(--red);font-size:13px;font-weight:700}
.latest-article,.category-article,.related-article{border-radius:0}
.latest-article:hover,.category-article:hover,.related-article:hover{box-shadow:inset 3px 0 var(--green)}
.article-directory,.editorial-article{padding-top:46px}
.article-header{border-bottom:1px solid var(--line);padding-bottom:28px}
.article-layout{grid-template-columns:200px minmax(0,740px);gap:64px}
.article-content{font-size:16px;line-height:1.85}
.article-toc{border-top:3px solid var(--ink)}
.article-intro{padding:18px 20px;border-left:3px solid var(--red);background:var(--soft)}
.article-products>p{color:var(--muted);font-size:14px}
.article-faq details[open]{border-left:3px solid var(--green);padding-left:16px}
.article-summary{border-top-color:var(--green)}
.listing-head{padding:34px 0 26px;border-bottom:2px solid var(--ink)}
.article-list-item:hover{box-shadow:inset 3px 0 var(--green);padding-left:16px}
footer{border-top:4px solid var(--red);background:#1d2024}

@media(max-width:768px){
  .wrap,.header-inner,.footer-inner,.breadcrumbs{width:min(100% - 32px,var(--max))}
  .header-inner{gap:24px}.primary-nav{gap:18px}.intro-grid{gap:32px}
  .category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .product-image{height:210px}
  .article-layout{grid-template-columns:160px minmax(0,1fr);gap:30px}
  .article-product-card{grid-template-columns:120px minmax(0,1fr)}
}
@media(max-width:390px){
  .wrap,.header-inner,.footer-inner,.breadcrumbs{width:min(100% - 24px,var(--max))}
  .header-inner{height:60px}.brand-mark{width:30px;height:30px}.brand-copy strong{font-size:16px}.brand-copy small{display:none}
  .intro h1{font-size:36px}.quick-stats div{padding:10px 8px}.quick-stats span{font-size:10px}
  .section-heading{display:block}.section-heading p,.section-heading a{display:block;margin:6px 0 0}
  .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .product-grid{gap:14px 8px}.product-image{height:150px;padding:8px}.product-card-body{min-height:216px;padding:12px}
  .product-card h3{height:45px;font-size:14px;line-height:1.6}.price-row span{display:block;margin-top:2px}
  .article-product-card{grid-template-columns:88px minmax(0,1fr);gap:12px}.article-product-image{width:88px}
}

/* Final visual balance: red for action, green for trust, ink for structure. */
.intro{position:relative;overflow:hidden;border-bottom:0;background:#fff}
.intro:after{position:absolute;right:0;bottom:0;width:34%;height:6px;background:var(--green);content:""}
.quick-stats div:nth-child(1){box-shadow:inset 0 3px var(--red)}
.quick-stats div:nth-child(2){box-shadow:inset 0 3px var(--green)}
.quick-stats div:nth-child(3){box-shadow:inset 0 3px var(--ink)}
.category-grid a{position:relative;transition:background-color .18s ease,color .18s ease}
.category-grid a:before{position:absolute;top:17px;right:16px;width:7px;height:7px;border-radius:50%;background:var(--green);content:""}
.category-grid a:nth-child(3n+1):before{background:var(--red)}
.category-grid a:hover{background:#f8fbfa;box-shadow:inset 0 -3px var(--green)}
.section-heading>a{color:var(--green);font-weight:700}
.product-card{transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.product-card:hover{border-color:#b9cec7;box-shadow:0 10px 26px rgba(23,25,29,.08);transform:translateY(-2px)}
.commerce-tools{position:relative;background:var(--ink);color:#fff}
.commerce-tools .tools-grid{border-top-color:#454a52}
.commerce-tools .eyebrow{color:#6fd0b4}
.commerce-tools .jd-search>p:not(.eyebrow){color:#c2c8cf}
.commerce-tools .official-widget{box-shadow:0 12px 30px rgba(0,0,0,.22)}
.window-band{background:#eef6f3}
.window-band .section-heading{border-bottom-color:var(--green)}
.article-summary{padding:24px;background:#eef6f3;border-bottom:0}
.article-summary a{display:inline-flex;margin-top:4px;padding-bottom:2px;border-bottom:2px solid var(--green);color:var(--green)}
.article-faq details[open]{background:#f7faf9}
@media(max-width:640px){
  .intro:after{width:62%;height:4px}
  .category-grid a:before{top:12px;right:12px}
  .product-card:hover{transform:none}
  .commerce-tools{padding-top:36px;padding-bottom:38px}
}