:root{--bg:#f7f8fa;--card:#fff;--soft:#f1f5f9;--line:#e2e8f0;--text:#172033;--muted:#667085;--brand:#3157d5;--brand2:#2446b8;--accent:#eaf0ff;--green:#0f9f6e;--orange:#d97706;--radius:10px;--shadow:0 8px 24px rgba(15,23,42,.06)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:17px;line-height:1.55}a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}button,input,select{font:inherit}.amazon-wrap{width:min(1480px,calc(100% - 32px));margin:auto}.amazon-topbar{background:#192238;color:#dce4f2;font-size:14px}.amazon-topbar .amazon-wrap{height:36px;display:flex;align-items:center;justify-content:space-between}.amazon-topbar nav{display:flex;gap:20px}.amazon-topbar a{text-decoration:none}.amazon-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}.amazon-header-main{min-height:78px;display:grid;grid-template-columns:auto minmax(320px,760px) auto;gap:24px;align-items:center}.amazon-logo{font-weight:800;font-size:24px;text-decoration:none;color:#172033}.amazon-search{display:grid;grid-template-columns:105px 1fr 92px;border:2px solid #b8c5ea;border-radius:8px;overflow:hidden;background:#fff}.amazon-search select,.amazon-search input{border:0;padding:12px;background:#fff;outline:none}.amazon-search select{border-right:1px solid var(--line)}.amazon-search button{border:0;background:var(--brand);color:#fff;font-weight:700;cursor:pointer}.admin-login-link{padding:10px 16px;border:1px solid var(--line);border-radius:7px;text-decoration:none;font-weight:700}.seller-home{padding:20px 0 40px}.home-shell{display:grid;grid-template-columns:245px minmax(0,1fr);gap:18px}.seller-sidebar{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;height:max-content;position:sticky;top:98px}.sidebar-heading{padding:15px 16px;background:#eef2ff;font-weight:800;display:flex;justify-content:space-between}.sidebar-heading button{display:none}.seller-category-nav a{display:grid;grid-template-columns:1fr auto;gap:3px 8px;padding:11px 15px;border-bottom:1px solid #edf0f5;text-decoration:none}.seller-category-nav a:hover{background:#f7f9ff;color:var(--brand)}.seller-category-nav small{grid-column:1;color:var(--muted);font-size:12px}.seller-category-nav b{grid-row:1/3;grid-column:2;align-self:center}.sidebar-help{padding:15px;background:#f8fafc}.sidebar-help p{font-size:13px;color:var(--muted)}.sidebar-help a{color:var(--brand);font-weight:700}.home-content{min-width:0}.home-dashboard{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.75fr);gap:18px}.portal-card,.module-panel,.category-link-section,.directory-heading,.directory-filter,.directory-toolbar,.website-list-modern article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.portal-card{padding:22px}.portal-title{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:16px}.portal-title span,.module-eyebrow{display:block;color:var(--brand);font-size:12px;font-weight:800;letter-spacing:.12em}.portal-title h1,.portal-title h2,.module-header h2{margin:3px 0 0;line-height:1.2}.portal-title h1{font-size:29px}.portal-title h2,.module-header h2{font-size:23px}.portal-title p,.module-header p{margin:6px 0 0;color:var(--muted);font-size:14px}.portal-title>a,.module-header>a,.directory-section-head>a{color:var(--brand);font-weight:700}.primary-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.primary-links a,.quick-tool-links a,.category-site-grid a,.mini-tool-grid a{min-height:46px;display:flex;align-items:center;padding:8px 11px;border:1px solid #e6eaf2;border-radius:7px;background:#fff;font-weight:650;text-decoration:underline}.primary-links a:hover,.quick-tool-links a:hover,.category-site-grid a:hover,.mini-tool-grid a:hover{border-color:#9bb0ef;background:#f5f7ff;color:var(--brand)}.quick-tool-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.compact-search{margin-top:14px;display:grid;grid-template-columns:1fr 90px;border:1px solid #cdd5e5;border-radius:7px;overflow:hidden}.compact-search input{border:0;padding:12px 14px;outline:none}.compact-search button{border:0;background:var(--brand);color:#fff;font-weight:800}.rank-card{padding:20px}.ranking-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:14px 0 10px}.ranking-tabs button{border:1px solid var(--line);background:#f8fafc;padding:8px 4px;border-radius:6px;cursor:pointer}.ranking-tabs button.active{background:var(--brand);border-color:var(--brand);color:#fff}.ranking-item{display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:8px;padding:9px 2px;border-bottom:1px solid #edf0f4;text-decoration:none}.rank-no{width:25px;height:25px;display:grid;place-items:center;background:#eef2f7;border-radius:5px;font-size:13px;font-weight:800}.rank-no.top{background:#fff1d8;color:#b45c00}.rank-score{font-size:13px;color:#d97706}.module-panel{padding:20px;margin-top:18px}.module-header{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:14px}.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.mini-tool-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px}.all-category-directory{margin-top:18px}.directory-section-head{display:flex;justify-content:space-between;align-items:end;padding:20px 22px;background:#172033;color:#fff;border-radius:10px}.directory-section-head span{font-size:12px;letter-spacing:.12em;color:#afc1ff}.directory-section-head h2{font-size:26px;margin:4px 0}.directory-section-head p{margin:0;color:#c9d2e3}.directory-section-head>a{color:#fff}.category-link-section{margin-top:12px;padding:16px 18px;box-shadow:none}.category-link-section header{display:grid;grid-template-columns:1fr auto auto;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:10px}.category-link-section h3{margin:0;font-size:20px}.category-link-section h3 a,.category-link-section header>a{color:var(--brand)}.category-link-section header span{color:var(--muted);font-size:14px}.category-site-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px}.category-site-grid a{min-height:40px;font-size:15px}.home-article-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.home-article-list a{padding:14px;border:1px solid var(--line);border-radius:8px;text-decoration:none}.home-article-list span{font-size:12px;color:var(--brand)}.home-article-list strong{display:block;margin:6px 0}.membership-modern{margin-top:18px;padding:24px;background:linear-gradient(135deg,#243a75,#3157d5);color:#fff;border-radius:10px;display:flex;justify-content:space-between;align-items:center}.membership-modern h2{margin:4px 0}.membership-modern p{margin:0;color:#dbe5ff}.membership-actions{display:flex;gap:10px}.membership-actions a{background:#fff;color:#243a75;padding:11px 16px;border-radius:7px;font-weight:800;text-decoration:none}.amazon-page{padding:22px 0 40px}.breadcrumb{margin-bottom:14px;color:var(--muted)}.directory-layout{display:grid;grid-template-columns:240px 1fr;gap:18px}.directory-filter{padding:14px;height:max-content;position:sticky;top:98px}.directory-filter h3{margin:4px 8px 10px}.directory-filter a{display:flex;justify-content:space-between;padding:9px 10px;border-radius:6px;text-decoration:none}.directory-filter a:hover,.directory-filter a.active{background:#eef2ff;color:var(--brand)}.directory-filter em{font-style:normal;color:var(--muted)}.directory-heading{padding:20px;display:flex;justify-content:space-between;gap:20px;align-items:end}.directory-heading span{color:var(--brand);font-size:12px;font-weight:800}.directory-heading h1{margin:4px 0;font-size:28px}.directory-heading p{margin:0;color:var(--muted)}.directory-heading form{display:flex}.directory-heading input{padding:11px;border:1px solid var(--line);border-radius:7px 0 0 7px}.directory-heading button{border:0;background:var(--brand);color:#fff;padding:0 18px;border-radius:0 7px 7px 0}.directory-toolbar{margin:12px 0;padding:10px 14px;display:flex;justify-content:space-between;box-shadow:none}.website-list-modern{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.website-list-modern article{padding:15px;display:flex;flex-direction:column;gap:10px;box-shadow:none}.website-list-modern img,.site-letter{width:44px;height:44px;border-radius:8px;object-fit:contain;background:#eef2ff;display:grid;place-items:center;font-weight:800;color:var(--brand)}.site-category{font-size:12px;color:var(--brand)}.site-info h2{font-size:19px;margin:2px 0}.site-info h2 a{text-decoration:underline}.site-info p{font-size:14px;color:var(--muted);margin:6px 0;min-height:44px}.site-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.site-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}.btn-outline,.btn-primary{padding:9px;text-align:center;border-radius:6px;font-weight:700;text-decoration:none}.btn-outline{border:1px solid var(--line)}.btn-primary{background:var(--brand);color:#fff}.amazon-footer{background:#172033;color:#d8e0ee;padding:30px 0}.amazon-footer strong{font-size:22px}.amazon-footer a{color:#fff;margin-right:18px}.mobile-bottom,.sidebar-mask{display:none}.back-top{position:fixed;right:20px;bottom:24px;width:42px;height:42px;border:0;border-radius:50%;background:var(--brand);color:#fff}@media(max-width:1100px){.home-shell{grid-template-columns:1fr}.seller-sidebar{display:none}.home-dashboard,.feature-row{grid-template-columns:1fr}.website-list-modern{grid-template-columns:repeat(3,1fr)}.category-site-grid{grid-template-columns:repeat(4,1fr)}.directory-layout{grid-template-columns:1fr}.directory-filter{position:static}}@media(max-width:760px){body{font-size:16px}.amazon-wrap{width:min(100% - 20px,1480px)}.amazon-topbar{display:none}.amazon-header-main{grid-template-columns:1fr auto;gap:10px;padding:10px 0}.amazon-logo{font-size:19px}.amazon-search{grid-column:1/-1;grid-row:2;grid-template-columns:78px 1fr 68px}.primary-links{grid-template-columns:repeat(2,1fr)}.quick-tool-links,.mini-tool-grid,.category-site-grid{grid-template-columns:repeat(2,1fr)}.website-list-modern{grid-template-columns:repeat(2,1fr)}.directory-heading{display:block}.directory-heading form{margin-top:12px}.membership-modern{display:block}.membership-actions{margin-top:16px;flex-wrap:wrap}.home-article-list{grid-template-columns:1fr}.mobile-bottom{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:60}.mobile-bottom a,.mobile-bottom button{padding:12px 4px;text-align:center;border:0;background:#fff;text-decoration:none}.back-top{bottom:72px}.amazon-footer{padding-bottom:80px}}@media(max-width:480px){.website-list-modern{grid-template-columns:1fr}.portal-title,.module-header,.directory-section-head{align-items:start}.portal-title>a,.module-header>a{white-space:nowrap}}

/* V22 unified reading-friendly design and missing page styles */
:root{
  --bg:#f7f6f2;
  --card:#fffefa;
  --text:#34383f;
  --muted:#6f756f;
  --line:#dddcd4;
  --brand:#587466;
  --brand-strong:#3f5f51;
  --brand-soft:#edf3ef;
  --accent:#a97855;
  --danger:#a85f59;
  --shadow:0 5px 18px rgba(57,65,60,.055);
  --radius:8px;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-size:17px;line-height:1.7;font-family:Inter,"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif}
a{color:var(--brand-strong);text-underline-offset:3px}
a:hover{color:#294b3d}
.amazon-topbar{background:#f0efe9;color:#5f665f;border-bottom:1px solid var(--line)}
.amazon-header{background:rgba(255,254,250,.96);border-bottom:1px solid var(--line);box-shadow:0 3px 12px rgba(50,60,54,.04)}
.amazon-logo{color:#33483e;font-size:25px}
.amazon-search{border:1px solid #cfd3cc;box-shadow:0 2px 7px rgba(40,50,44,.04)}
.amazon-search button,.compact-search button,.directory-heading button,.contact-submit,.btn-primary{background:var(--brand)}
.amazon-search button:hover,.compact-search button:hover,.directory-heading button:hover,.contact-submit:hover,.btn-primary:hover{background:var(--brand-strong)}
.header-actions{display:flex;align-items:center;gap:9px}
.contact-link,.mobile-category-button{min-height:44px;padding:9px 15px;border:1px solid #cfd3cc;border-radius:7px;background:#fffefa;color:#3f594d;font-size:15px;font-weight:750;text-decoration:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.contact-link:hover,.mobile-category-button:hover{background:var(--brand-soft);border-color:#aebdb4}
.mobile-category-button{display:none}
.portal-card,.module-panel,.category-link-section,.directory-heading,.directory-filter,.directory-toolbar,.website-list-modern article,.content-main,.sidebar-box,.contact-side section,.tool-workspace-section,.rich-content{background:var(--card);border-color:var(--line);box-shadow:var(--shadow)}
.directory-section-head{background:#52685d}
.membership-modern{background:linear-gradient(135deg,#52685d,#6f887a)}
.primary-links a,.quick-tool-links a,.category-site-grid a,.mini-tool-grid a{background:#fffefa;border-color:#dfded7;color:#40544a;font-size:16px;font-weight:680}
.primary-links a:hover,.quick-tool-links a:hover,.category-site-grid a:hover,.mini-tool-grid a:hover{background:var(--brand-soft);border-color:#b7c7bd;color:#2f5142}
.ranking-tabs button{background:#f4f3ee;color:#5a615b;border-color:#d9d8d1;font-size:15px;font-weight:700}
.ranking-tabs button.active{background:var(--brand);border-color:var(--brand);color:white}
.ranking-item[hidden]{display:none!important}
.ranking-item{font-size:16px;min-height:43px}
.rank-no.top{background:#f5eadf;color:#966344}
.rank-score{color:#9a6a4a}

/* shared internal page foundation */
.container{width:min(100% - 32px,1320px);margin-inline:auto}
.page-wrap{padding:24px 0 48px}
.breadcrumb{font-size:14px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:22px;align-items:start}
.content-main{min-width:0;border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.page-heading{border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:18px}
.page-heading h1{font-size:30px;line-height:1.3;margin:0;color:#303b35}
.page-heading p{margin:7px 0 0;color:var(--muted)}
.filter-bar{display:grid;grid-template-columns:minmax(180px,1fr) 190px 92px;gap:10px;margin-bottom:18px}
.filter-bar input,.filter-bar select,.contact-form input,.contact-form select,.contact-form textarea{width:100%;border:1px solid #d3d4ce;border-radius:7px;background:#fff;padding:11px 12px;font:inherit;color:var(--text);outline:none}
.filter-bar input:focus,.filter-bar select:focus,.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:#91a79a;box-shadow:0 0 0 3px rgba(88,116,102,.12)}
.filter-bar button{border:0;border-radius:7px;background:var(--brand);color:#fff;font-weight:750;cursor:pointer}

/* tools list */
.tool-list-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.tool-list-card{min-width:0;display:flex;gap:13px;padding:17px;border:1px solid var(--line);border-radius:8px;background:#fffefa;text-decoration:none;transition:.18s ease}
.tool-list-card:hover{border-color:#aebdb4;background:#f5f8f6;transform:translateY(-1px);box-shadow:0 6px 16px rgba(52,66,58,.07)}
.tool-list-icon{width:48px;height:48px;border-radius:7px;object-fit:contain;flex:0 0 auto}
.tool-list-content{min-width:0}
.tool-list-content>span,.tool-detail-category{color:#6a8174;font-size:13px;font-weight:750}
.tool-list-content h2{font-size:20px;line-height:1.35;margin:4px 0;color:#34473e;text-decoration:underline;text-underline-offset:4px}
.tool-list-content p{font-size:14px;line-height:1.55;color:var(--muted);margin:6px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tool-list-content em{font-size:14px;color:var(--brand);font-style:normal;font-weight:750}
.pagination{display:flex;gap:7px;flex-wrap:wrap;margin-top:22px}
.pagination a{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:6px;background:#fff;text-decoration:none}
.pagination a.active{background:var(--brand);border-color:var(--brand);color:#fff}

/* tool detail */
.tool-detail-page{display:grid;gap:18px}
.detail-head{display:flex;gap:18px;align-items:center;padding:24px;border:1px solid var(--line);border-radius:8px;background:var(--card)}
.detail-head>img{width:68px;height:68px;object-fit:contain;border:1px solid var(--line);border-radius:9px;background:#fff}
.detail-head h1{font-size:32px;line-height:1.3;margin:4px 0;color:#303c35}
.detail-head p{margin:6px 0 0;color:var(--muted)}
.tool-workspace-section{border:1px solid var(--line);border-radius:8px;padding:18px}
.workspace-heading{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:13px}
.workspace-heading span{font-size:13px;color:var(--brand);font-weight:800}
.workspace-heading h2{font-size:23px;margin:2px 0}
.workspace-heading small{color:var(--muted)}
.tool-workspace{border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}
.tool-iframe{display:block;width:100%;min-height:680px;border:0;background:#fff}
.rich-content{border:1px solid var(--line);border-radius:8px;padding:27px;font-size:17px;line-height:1.85}
.rich-content h2{font-size:25px;color:#34483e;margin:30px 0 12px;border-bottom:1px solid #e3e1da;padding-bottom:8px}
.rich-content h2:first-child{margin-top:0}
.rich-content p,.rich-content li{color:#4f5651}
.rich-content img{max-width:100%;height:auto;border-radius:7px}
.tool-related-area{margin-top:2px}

/* article list and detail */
.article-list{display:grid;gap:13px}
.article-row{display:grid;grid-template-columns:200px minmax(0,1fr);gap:18px;padding:15px;border:1px solid var(--line);border-radius:8px;background:#fffefa;text-decoration:none}
.article-row:hover{background:#f6f8f5;border-color:#b6c4bb}
.article-row img,.cover-placeholder{width:200px;height:128px;object-fit:cover;border-radius:7px;background:#edf2ee;display:grid;place-items:center;color:#60766a;font-weight:750}
.article-row span{font-size:13px;color:#6b8175;font-weight:750}
.article-row h2{font-size:22px;line-height:1.4;margin:4px 0;color:#34473e;text-decoration:underline;text-underline-offset:4px}
.article-row p{margin:6px 0;color:var(--muted);line-height:1.65}
.article-row small{color:#8a8e89}
.article-detail>header>span{color:var(--brand);font-weight:800;font-size:14px}
.article-detail h1{font-size:36px;line-height:1.35;margin:7px 0 12px;color:#303c35}
.article-meta{font-size:14px;color:var(--muted);margin:10px 0 18px}
.article-hero{width:100%;max-height:520px;object-fit:cover;border-radius:8px;margin-bottom:20px}
.tag-list{display:flex;gap:7px;flex-wrap:wrap}
.tag-list a{padding:4px 9px;background:var(--brand-soft);border-radius:5px;text-decoration:none;font-size:13px}
.article-detail .rich-content{border:0;padding:0;box-shadow:none;background:transparent}

/* contact */
.contact-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px;align-items:start}
.contact-form{display:grid;gap:15px}
.contact-form label{display:grid;gap:7px;font-weight:720;color:#465149}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.contact-form textarea{min-height:190px;resize:vertical}
.contact-submit{min-height:48px;border:0;border-radius:7px;color:#fff;font-size:16px;font-weight:800;cursor:pointer}
.form-note{font-size:13px;color:var(--muted);margin:0}
.honeypot{position:absolute!important;left:-9999px!important}
.notice{padding:13px 15px;border-radius:7px;margin-bottom:16px}
.notice.success{background:#edf6f0;color:#356044;border:1px solid #bdd8c6}
.notice.error{background:#f8eeee;color:#8a4d49;border:1px solid #e1c5c2}
.contact-side{display:grid;gap:13px}
.contact-side section{border:1px solid var(--line);border-radius:8px;padding:18px}
.contact-side h2{font-size:19px;margin:0 0 8px;color:#3e5147}
.contact-side p{margin:0;color:var(--muted)}

.sidebar-box{border:1px solid var(--line);border-radius:8px;padding:17px;margin-bottom:13px}

@media(max-width:1100px){
  .content-layout{grid-template-columns:1fr}
  .tool-list-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-layout{grid-template-columns:1fr}
  .seller-sidebar.open{display:block;position:fixed;z-index:1001;left:0;top:0;bottom:0;width:min(86vw,330px);overflow:auto;border-radius:0}
  .seller-sidebar.open .sidebar-heading button{display:block}
  .sidebar-mask.show{display:block;position:fixed;inset:0;background:rgba(38,44,40,.38);z-index:1000}
  body.menu-open{overflow:hidden}
}
@media(max-width:760px){
  body{font-size:16px}
  .amazon-header-main{grid-template-columns:1fr auto}
  .header-actions{gap:7px}
  .mobile-category-button{display:inline-flex}
  .contact-link{padding-inline:11px}
  .content-main{padding:17px}
  .page-heading h1{font-size:26px}
  .filter-bar{grid-template-columns:1fr}
  .filter-bar button{min-height:44px}
  .tool-list-grid{grid-template-columns:1fr}
  .detail-head{align-items:flex-start;padding:18px}
  .detail-head h1{font-size:27px}
  .workspace-heading{display:block}
  .workspace-heading small{display:block;margin-top:5px}
  .rich-content{padding:19px;font-size:16px}
  .article-row{grid-template-columns:112px minmax(0,1fr);gap:12px;padding:11px}
  .article-row img,.cover-placeholder{width:112px;height:90px}
  .article-row h2{font-size:18px}
  .article-row p{display:none}
  .article-detail h1{font-size:29px}
  .form-row{grid-template-columns:1fr}
}
@media(max-width:480px){
  .contact-link{font-size:14px}
  .mobile-category-button{font-size:14px;padding-inline:10px}
  .article-row{grid-template-columns:1fr}
  .article-row img,.cover-placeholder{width:100%;height:170px}
}

/* ===== V23 comprehensive layout and detail styles ===== */
.quick-tool-links{grid-template-columns:repeat(5,minmax(0,1fr))}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:22px;align-items:start}
.content-main{min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.page-heading{display:flex;justify-content:space-between;gap:20px;align-items:end;padding-bottom:16px;border-bottom:1px solid var(--line)}
.page-heading h1{margin:0;font-size:30px;line-height:1.25}.page-heading p{margin:6px 0 0;color:var(--muted)}
.filter-bar{display:grid;grid-template-columns:minmax(0,1fr) 220px 100px;gap:10px;margin:18px 0}
.filter-bar input,.filter-bar select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text)}
.filter-bar button{border:0;border-radius:8px;background:var(--brand);color:#fff;font-weight:750;cursor:pointer}
.tool-list-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tool-list-card{display:flex;gap:13px;min-height:150px;padding:17px;border:1px solid var(--line);border-radius:10px;background:#fff;text-decoration:none;transition:.18s ease}
.tool-list-card:hover{transform:translateY(-2px);border-color:#aebcb3;box-shadow:0 10px 24px rgba(53,72,61,.08)}
.tool-list-icon{width:48px;height:48px;object-fit:contain;border-radius:9px;background:#f5f7f5}.tool-list-content{min-width:0}
.tool-list-content>span{font-size:13px;color:var(--brand);font-weight:700}.tool-list-content h2{margin:5px 0 7px;font-size:20px}.tool-list-content p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}.tool-list-content em{display:block;margin-top:10px;color:var(--brand);font-style:normal;font-weight:750;text-decoration:underline}
.sidebar{display:grid;gap:14px}.sidebar-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.sidebar-box h3{margin:0 0 12px;font-size:19px}.sidebar-box a{display:block;padding:9px 0;border-bottom:1px solid var(--line);text-decoration:underline}.sidebar-box a:last-child{border-bottom:0}
.article-list{display:grid;gap:14px}.article-row{display:grid;grid-template-columns:180px minmax(0,1fr);gap:18px;padding:14px;border:1px solid var(--line);border-radius:10px;background:#fff;text-decoration:none}
.article-row img,.cover-placeholder{width:180px;height:118px;object-fit:cover;border-radius:8px;background:var(--soft);display:grid;place-items:center;color:var(--muted)}
.article-row span{font-size:13px;color:var(--brand);font-weight:700}.article-row h2{margin:4px 0 7px;font-size:22px}.article-row p{margin:0;color:var(--muted)}.article-row small{display:block;margin-top:10px;color:var(--muted)}
.pagination{display:flex;gap:7px;flex-wrap:wrap;margin-top:22px}.pagination a{min-width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:7px;text-decoration:none}.pagination a.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.tool-detail-page{display:grid;gap:18px}.detail-head{display:flex;align-items:center;gap:18px;padding:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.detail-head>img{width:72px;height:72px;object-fit:contain;border-radius:12px;background:var(--soft)}.detail-head h1{margin:4px 0 8px;font-size:32px}.detail-head p{margin:0;color:var(--muted)}
.tool-detail-category{color:var(--brand);font-weight:750;font-size:14px}.tool-workspace-section,.rich-content{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.workspace-heading{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:15px}.workspace-heading h2{margin:4px 0 0}.workspace-heading span{color:var(--brand);font-size:13px;font-weight:750}.workspace-heading small{color:var(--muted)}
.tool-workspace{overflow:hidden;border:1px solid var(--line);border-radius:9px;background:#fff}.tool-iframe{display:block;width:100%;min-height:520px;border:0}
.rich-content{font-size:17px;line-height:1.85;color:#39453f}.rich-content h2,.rich-content h3{color:#26332d;line-height:1.35}.rich-content img{max-width:100%;height:auto;border-radius:8px}.rich-content a{color:var(--brand);text-decoration:underline}.rich-content table{width:100%;border-collapse:collapse}.rich-content th,.rich-content td{padding:10px;border:1px solid var(--line)}
.article-detail>header>span{color:var(--brand);font-weight:750}.article-detail h1{font-size:36px;line-height:1.3;margin:8px 0 12px}.article-meta{color:var(--muted);margin:12px 0}.article-hero{width:100%;max-height:520px;object-fit:cover;border-radius:10px;margin:10px 0 22px}.tag-list{display:flex;gap:8px;flex-wrap:wrap}.tag-list a{padding:5px 9px;border-radius:6px;background:var(--soft);color:var(--brand);text-decoration:none}
.website-detail-modern{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.website-detail-modern>header{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:20px;align-items:center;padding:26px;border-bottom:1px solid var(--line)}
.website-logo-modern{width:76px;height:76px;object-fit:contain;border-radius:12px;background:var(--soft)}.website-logo-modern.letter{display:grid;place-items:center;font-size:30px;font-weight:800;color:var(--brand)}
.website-title h1{margin:5px 0 8px;font-size:34px}.website-title p{margin:0;color:var(--muted)}.detail-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px;color:var(--muted);font-size:14px}
.detail-actions{display:flex;gap:9px;align-items:center}.detail-actions button{padding:11px 14px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer}.website-cover-modern{display:block;width:100%;max-height:520px;object-fit:cover}
.detail-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;padding:26px}.detail-body main>section{margin-bottom:22px}.detail-body h2{font-size:25px}.feature-list>div{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.feature-list>div>span{color:var(--green);font-weight:900}.feature-list p{margin:0}.feature-list strong{display:block}
.detail-side-card{position:sticky;top:100px;padding:20px;border:1px solid var(--line);border-radius:10px;background:var(--soft)}.detail-side-card h3{margin-top:0}.detail-side-card dl{margin:0 0 16px}.detail-side-card dl>div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.detail-side-card dt{color:var(--muted)}.detail-side-card dd{margin:0;text-align:right}.detail-side-card .btn-primary{display:block}
.directory-filter a{cursor:pointer}.directory-filter a.active{font-weight:750}
@media(max-width:1100px){.quick-tool-links{grid-template-columns:repeat(4,1fr)}.content-layout,.detail-body{grid-template-columns:1fr}.tool-list-grid{grid-template-columns:repeat(2,1fr)}.website-detail-modern>header{grid-template-columns:auto 1fr}.detail-actions{grid-column:1/-1}.detail-side-card{position:static}}
@media(max-width:760px){.quick-tool-links{grid-template-columns:repeat(2,1fr)}.content-main{padding:16px}.filter-bar{grid-template-columns:1fr}.tool-list-grid{grid-template-columns:1fr}.article-row{grid-template-columns:105px 1fr}.article-row img,.cover-placeholder{width:105px;height:90px}.article-row h2{font-size:18px}.website-detail-modern>header{grid-template-columns:1fr;padding:18px}.website-logo-modern{width:64px;height:64px}.detail-actions{grid-column:auto;flex-wrap:wrap}.detail-body{padding:18px}.article-detail h1{font-size:28px}.workspace-heading{display:block}.tool-iframe{min-height:600px}}

/* V23 sidebar completion */
.content-sidebar{display:grid;gap:14px;align-self:start;position:sticky;top:98px}
.side-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:17px;box-shadow:var(--shadow)}
.side-panel h3{margin:0 0 10px;font-size:19px;color:var(--text)}
.side-panel>a{display:flex;justify-content:space-between;gap:10px;padding:10px 3px;border-bottom:1px solid var(--line);color:#415149;text-decoration:underline;text-underline-offset:3px;line-height:1.45}
.side-panel>a:last-child{border-bottom:0}.side-panel>a:hover{color:var(--brand)}.side-panel em{font-style:normal;color:var(--muted);font-size:13px}
@media(max-width:1100px){.content-sidebar{position:static;grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.content-sidebar{grid-template-columns:1fr}}

/* ===== V24 category/search/grid corrections ===== */
.quick-tool-links{grid-template-columns:repeat(6,minmax(0,1fr))}
.feature-row .mini-tool-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.multi-engine-search{display:grid;grid-template-columns:auto 150px minmax(180px,1fr) 112px;align-items:center;gap:0;margin-bottom:9px;border:1px solid #cfd8d2;border-radius:9px;background:#fff;overflow:hidden;box-shadow:0 5px 18px rgba(53,72,61,.06)}
.multi-engine-search label{padding:0 13px;color:var(--muted);font-size:13px;font-weight:750;white-space:nowrap}
.multi-engine-search select,.multi-engine-search input{height:49px;border:0;border-left:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none}
.multi-engine-search select{padding:0 34px 0 13px;font-weight:750;cursor:pointer}
.multi-engine-search input{padding:0 15px}
.multi-engine-search input:focus{box-shadow:inset 0 0 0 2px rgba(69,105,85,.14)}
.multi-engine-search button{height:49px;border:0;background:var(--brand);color:#fff;font-weight:800;cursor:pointer}
.multi-engine-search button:hover{background:var(--brand-strong)}
.search-engine-hints{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:0 0 17px;color:var(--muted);font-size:13px}
.search-engine-hints button{border:1px solid var(--line);border-radius:999px;background:var(--soft);color:var(--text);padding:5px 10px;cursor:pointer}
.search-engine-hints button:hover{border-color:#aebeb4;color:var(--brand);background:var(--brand-soft)}
.directory-filter a{position:relative;z-index:1;pointer-events:auto}
.directory-filter a.active:before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--brand)}
@media(max-width:1100px){.quick-tool-links{grid-template-columns:repeat(4,1fr)}.feature-row .mini-tool-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:760px){.multi-engine-search{grid-template-columns:105px minmax(0,1fr) 84px}.multi-engine-search label{display:none}.multi-engine-search select{border-left:0}.multi-engine-search input{min-width:0}.search-engine-hints span{width:100%}.quick-tool-links{grid-template-columns:repeat(2,1fr)}.feature-row .mini-tool-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:420px){.multi-engine-search{grid-template-columns:92px minmax(0,1fr) 72px}.multi-engine-search select,.multi-engine-search input,.multi-engine-search button{font-size:14px}.multi-engine-search input{padding-inline:10px}}

/* V26 seller search: square, fast, seller-focused */
.seller-start-card{padding-top:18px}
.seller-search{margin:-2px -2px 22px;border:1px solid #cfd5dc;background:#fbfcfd;box-shadow:0 3px 12px rgba(38,47,62,.05)}
.seller-search select{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.seller-search-engines{display:flex;align-items:center;gap:0;overflow-x:auto;border-bottom:1px solid #d8dde3;background:#f3f5f7;scrollbar-width:thin}
.seller-search-engines button{flex:0 0 auto;border:0;border-right:1px solid #d8dde3;border-radius:0;background:transparent;color:#5d6570;padding:10px 14px;font-size:14px;font-weight:700;cursor:pointer;white-space:nowrap}
.seller-search-engines button:hover{background:#fff;color:#263244}
.seller-search-engines button.active{background:#fff;color:#243e79;box-shadow:inset 0 -3px 0 #3f5f9f}
.seller-search-bar{display:grid;grid-template-columns:auto minmax(0,1fr) 92px;min-height:54px;background:#fff}
.seller-search-prefix{display:flex;align-items:center;padding:0 15px;border-right:1px solid #d8dde3;color:#39455a;font-size:14px;font-weight:800;background:#f8f9fa}
.seller-search-bar input{width:100%;border:0;outline:0;padding:13px 16px;background:#fff;color:#253044;font-size:17px}
.seller-search-bar input::placeholder{color:#89919d}
.seller-search-bar button{border:0;border-left:1px solid #324f8d;border-radius:0;background:#3f5f9f;color:#fff;font-weight:800;cursor:pointer}
.seller-search-bar button:hover{background:#324f8d}
.seller-search-note{margin:0;padding:8px 14px;border-top:1px solid #e4e7eb;color:#737b86;background:#fbfcfd;font-size:13px}
@media(max-width:760px){.seller-search{margin:0 0 18px}.seller-search-bar{grid-template-columns:minmax(0,1fr) 72px}.seller-search-prefix{display:none}.seller-search-engines button{padding:9px 12px}.seller-search-note{font-size:12px}.seller-search-bar input{font-size:16px;padding:12px}}


/* ===== V27 seller search + home article cards ===== */
.seller-search-v27{display:grid;gap:0;margin:0 0 22px;border:1px solid #d7d9d5;background:#fff;box-shadow:0 8px 24px rgba(58,65,61,.06)}
.seller-search-v27>select{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.seller-search-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #e5e6e2;background:#f7f8f6}
.seller-search-head div{display:flex;align-items:baseline;gap:10px}.seller-search-head span{font-size:12px;letter-spacing:.08em;color:#718078;font-weight:800}.seller-search-head strong{font-size:17px;color:#33443b}.seller-search-head small{color:#68756e;font-weight:700}
.seller-search-engine-row{display:flex;gap:0;overflow-x:auto;border-bottom:1px solid #e2e4e0;background:#fff;scrollbar-width:thin}
.seller-search-engine-row button{flex:0 0 auto;min-height:42px;padding:0 15px;border:0;border-right:1px solid #ecece8;background:#fff;color:#58645e;font:inherit;font-size:14px;font-weight:700;cursor:pointer}
.seller-search-engine-row button:hover{background:#f3f6f4;color:#31483c}.seller-search-engine-row button.active{background:#415f50;color:#fff}
.seller-search-main{display:grid;grid-template-columns:138px minmax(0,1fr) 112px;min-height:58px;background:#fff}
.seller-search-selected{display:flex;flex-direction:column;justify-content:center;padding:0 16px;border-right:1px solid #e0e2de;background:#f5f7f5}.seller-search-selected span{font-size:16px;font-weight:850;color:#334d40}.seller-search-selected small{margin-top:2px;color:#7b857f;font-size:11px}
.seller-search-main input{min-width:0;border:0;outline:0;padding:0 18px;background:#fff;color:#2f3c35;font-size:17px}.seller-search-main input::placeholder{color:#8a928d}
.seller-search-main button{display:flex;align-items:center;justify-content:center;gap:10px;border:0;border-left:1px solid #355043;border-radius:0;background:#416252;color:#fff;font:inherit;font-weight:850;cursor:pointer}.seller-search-main button:hover{background:#314e40}.seller-search-main button b{font-size:19px}
.seller-search-tips{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 16px;border-top:1px solid #e6e7e3;background:#fafbf9;color:#7b837e;font-size:13px}.seller-search-tips a{color:#536b5e;text-decoration:underline;text-underline-offset:3px}.seller-search-tips a:hover{color:#2e4d3d}
.home-articles-panel{margin-top:20px}.home-article-grid-v27{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:15px}
.home-article-grid-v27 article{min-width:0;border:1px solid var(--line);background:#fff;transition:.18s ease}.home-article-grid-v27 article:hover{transform:translateY(-2px);border-color:#b8c4bd;box-shadow:0 8px 20px rgba(48,61,54,.08)}
.home-article-cover-v27{display:block;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#e9efeb,#f7f5ef);text-decoration:none}.home-article-cover-v27 img{width:100%;height:100%;object-fit:cover;display:block}.home-article-cover-v27 span{width:100%;height:100%;display:grid;place-items:center;padding:18px;color:#52675b;font-size:18px;font-weight:850;text-align:center}
.home-article-body-v27{padding:13px}.home-article-body-v27>span{font-size:12px;color:#6d8176;font-weight:800}.home-article-body-v27 h3{font-size:17px;line-height:1.45;margin:6px 0}.home-article-body-v27 h3 a{color:#34473e;text-decoration:underline;text-underline-offset:3px}.home-article-body-v27 p{margin:0;color:var(--muted);font-size:13px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.home-article-body-v27 small{display:block;margin-top:9px;color:#8a918c}
@media(max-width:1180px){.home-article-grid-v27{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.seller-search-head{padding:12px}.seller-search-head div{display:grid;gap:2px}.seller-search-engine-row button{padding:0 12px}.seller-search-main{grid-template-columns:minmax(0,1fr) 82px}.seller-search-selected{display:none}.seller-search-main input{padding:0 13px;font-size:16px}.seller-search-main button{gap:5px}.seller-search-tips{padding:9px 12px;gap:9px}.home-article-grid-v27{grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.home-article-body-v27{padding:11px}.home-article-body-v27 h3{font-size:16px}.home-article-body-v27 p{display:none}}
@media(max-width:430px){.home-article-grid-v27{grid-template-columns:1fr}.home-article-cover-v27{aspect-ratio:16/8}}


/* V28 stable simple seller search */
.simple-seller-search{display:block;margin:0 0 20px;padding:16px;border:1px solid #d8ddd9;background:#fff;border-radius:0;box-shadow:none;overflow:visible}
.simple-seller-search>select{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important}
.simple-search-tabs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 12px}
.simple-search-tabs button{appearance:none;border:1px solid #d8ddd9;border-radius:0;background:#f7f8f7;color:#49554f;min-height:36px;padding:0 13px;font:inherit;font-size:14px;font-weight:700;line-height:1;cursor:pointer}
.simple-search-tabs button:hover{background:#eef2ef;border-color:#b9c4bd;color:#263b30}.simple-search-tabs button.active{background:#355747;border-color:#355747;color:#fff}
.simple-search-row{display:grid;grid-template-columns:112px minmax(0,1fr) 96px;align-items:stretch;border:2px solid #355747;background:#fff;min-height:56px;overflow:hidden}
.simple-search-label{display:flex;align-items:center;justify-content:center;padding:0 12px;border-right:1px solid #d8ddd9;background:#f2f5f3;color:#2f4b3d;font-size:15px;font-weight:800;white-space:nowrap}
.simple-search-row input{display:block;width:100%;min-width:0;height:56px;margin:0;padding:0 16px;border:0!important;border-radius:0!important;outline:0;background:#fff;color:#2d3832;font:inherit;font-size:17px;box-shadow:none!important}
.simple-search-row input::placeholder{color:#8a948e}.simple-search-row button{display:block;height:56px;margin:0;padding:0 20px;border:0;border-left:1px solid #2e4b3c;border-radius:0!important;background:#355747;color:#fff;font:inherit;font-size:16px;font-weight:800;cursor:pointer;box-shadow:none}.simple-search-row button:hover{background:#294639}
@media(max-width:760px){.simple-seller-search{padding:12px;margin-bottom:16px}.simple-search-tabs{gap:6px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:3px}.simple-search-tabs button{flex:0 0 auto;min-height:34px;padding:0 11px}.simple-search-row{grid-template-columns:82px minmax(0,1fr) 70px;min-height:50px}.simple-search-label{font-size:13px;padding:0 7px}.simple-search-row input{height:50px;padding:0 10px;font-size:15px}.simple-search-row button{height:50px;padding:0 10px;font-size:15px}}

/* AMZ10 V29 English US layout */
body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:-.005em}
.amazon-wrap,.container{max-width:1440px}
.amazon-logo{font-size:28px;letter-spacing:-.04em}
.seller-category-nav a span,.primary-links a,.category-site-grid a,.quick-tool-links a,.mini-tool-grid a{white-space:normal;line-height:1.35}
.primary-links{grid-template-columns:repeat(4,minmax(0,1fr))}
.category-site-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
.quick-tool-links{grid-template-columns:repeat(6,minmax(0,1fr))}
.mini-tool-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
.simple-search-row input{min-width:0}
@media(max-width:1100px){.category-site-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.quick-tool-links{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:760px){.primary-links,.category-site-grid,.mini-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-tool-links{grid-template-columns:repeat(2,minmax(0,1fr))}.simple-search-tabs{overflow-x:auto;white-space:nowrap}.amazon-search{order:3;width:100%}}