:root{--bg:#f4f6f8;--card:#fff;--text:#17191d;--muted:#667085;--line:#dce1e6;--line2:#edf0f2;--dark:#17191d;--accent:#2563eb;--container:1240px;--r:4px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:17px/1.72 Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input,textarea,select{font:inherit}.container{width:min(calc(100% - 32px),var(--container));margin:auto}.site-top{height:40px;background:#fff;border-bottom:1px solid var(--line2);font-size:14px;color:var(--muted)}.site-top .container,.site-top .container>div{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}.site-top a{text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.header-main{min-height:78px;display:grid;grid-template-columns:190px minmax(340px,1fr) 160px auto;gap:18px;align-items:center}.site-logo{font-size:29px;font-weight:850;letter-spacing:-1px;white-space:nowrap}.site-search{display:flex;height:48px;border:2px solid var(--dark);background:#fff;border-radius:var(--r);overflow:hidden}.site-search input{flex:1;min-width:0;border:0;outline:0;padding:0 17px;font-size:16px}.site-search button,.hero-search button{border:0;background:var(--dark);color:#fff;padding:0 28px;font-weight:750;display:inline-flex;align-items:center;justify-content:center}.feedback-link{height:48px;padding:6px 15px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;border:1px solid var(--line);background:#f8f9fa;border-radius:var(--r);line-height:1.2}.feedback-link strong{font-size:15px}.feedback-link small{margin-top:3px;color:var(--muted);font-size:12px}.feedback-link:hover{border-color:#8d96a3;background:#fff}.mobile-menu{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:var(--r)}.site-nav{border-top:1px solid var(--line2)}.site-nav .container{height:49px;display:flex;align-items:center;gap:28px;overflow:auto}.site-nav a{font-size:16px;font-weight:600;white-space:nowrap;text-decoration:underline;text-decoration-color:#c9cfd6;text-underline-offset:5px}.site-nav a:hover{color:var(--accent)}.site-main{min-height:65vh}.hero{padding:66px 0;background:#fff;border-bottom:1px solid var(--line)}.hero .container{max-width:1000px}.eyebrow{display:inline-block;margin-bottom:10px;color:var(--accent);font-size:14px;font-weight:750;letter-spacing:.05em}.hero h1{margin:0;font-size:clamp(42px,6vw,64px);line-height:1.12;letter-spacing:-2px}.hero p{max-width:760px;margin:18px 0;color:var(--muted);font-size:19px}.hero-search{display:flex;max-width:760px;height:56px;margin-top:26px;background:#fff;border:2px solid var(--dark);border-radius:var(--r);overflow:hidden;box-shadow:0 10px 28px rgba(16,24,40,.08)}.hero-search input{flex:1;min-width:0;border:0;outline:0;padding:0 18px;font-size:17px}.section{padding:50px 0}.section.soft{background:#eef1f4}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-title span{display:block;color:var(--muted);font-size:14px}.section-title h2,.page-heading h1{margin:4px 0 0;font-size:31px;line-height:1.25;letter-spacing:-.5px}.section-title>a{font-weight:700;text-decoration:underline;text-underline-offset:5px}.featured-links{display:grid;grid-template-columns:repeat(4,1fr);gap:11px}.featured-links a{padding:14px 15px;background:#fff;border:1px solid var(--line);border-radius:var(--r);font-size:17px;font-weight:650;text-decoration:underline;text-decoration-color:#c7ccd3;text-underline-offset:4px}.category-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.category-column{background:#fff;border:1px solid var(--line);border-top:3px solid #aeb7c4;padding:21px;border-radius:var(--r)}.category-column h3{margin:0 0 13px;font-size:20px}.category-column h3 a,.category-column li a{text-decoration:underline;text-underline-offset:4px}.category-column ul{list-style:none;padding:0;margin:0}.category-column li{border-top:1px solid var(--line2)}.category-column li:first-child{border-top:0}.category-column li a{display:block;padding:9px 0;font-size:16px;text-decoration-color:#d0d4da}.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.tool-card{min-width:0;display:grid;grid-template-columns:74px minmax(0,1fr);gap:15px;padding:17px;background:#fff;border:1px solid var(--line);border-radius:var(--r);transition:.18s}.tool-card:hover{border-color:#929ca9;transform:translateY(-2px);box-shadow:0 10px 24px rgba(16,24,40,.07)}.tool-thumb{width:74px;height:64px;object-fit:cover;border:1px solid var(--line2);border-radius:3px;background:#f4f5f7}.tool-placeholder{display:block;background:linear-gradient(135deg,#f4f5f7 0 48%,#eceff2 48% 52%,#f4f5f7 52%)}.tool-card span,.tool-list-card span{color:var(--muted);font-size:13px}.tool-card h3{margin:2px 0 4px;font-size:18px;line-height:1.35;text-decoration:underline;text-decoration-color:#c4c9cf;text-underline-offset:4px}.tool-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}.article-card img,.cover-placeholder{width:100%;height:190px;object-fit:cover}.cover-placeholder{display:grid;place-items:center;background:#e9edf2;color:#556070;font-weight:700}.article-card>div{padding:19px}.article-card span{font-size:13px;color:var(--accent)}.article-card h3{font-size:20px;line-height:1.45;margin:5px 0;text-decoration:underline;text-decoration-color:#c7ccd3;text-underline-offset:4px}.article-card p{margin:0;color:var(--muted);font-size:14px}.directory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.directory-grid a{display:flex;flex-direction:column;min-height:136px;padding:19px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}.directory-grid strong{font-size:19px;text-decoration:underline;text-underline-offset:4px}.directory-grid span{color:var(--muted);font-size:14px;margin:6px 0}.directory-grid em{margin-top:auto;font-style:normal;font-size:13px}.page-wrap{padding:32px 0 58px}.breadcrumb{display:flex;gap:8px;margin-bottom:20px;color:var(--muted);font-size:14px}.breadcrumb a{text-decoration:underline}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}.content-main,.content-sidebar .side-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r)}.content-main{min-width:0;padding:28px}.page-heading{margin-bottom:24px}.page-heading p{color:var(--muted);font-size:16px}.filter-bar{display:grid;grid-template-columns:minmax(220px,1fr) 230px 110px;gap:12px;margin:0 0 24px;padding:16px;background:#f7f8fa;border:1px solid var(--line);border-radius:var(--r)}.filter-bar input,.filter-bar select{width:100%;height:48px;padding:0 14px;border:1px solid #cbd1d8;background:#fff;border-radius:3px;outline:0}.filter-bar input:focus,.filter-bar select:focus{border-color:#4b5563;box-shadow:0 0 0 3px rgba(17,24,39,.08)}.filter-bar button{height:48px;border:0;background:var(--dark);color:#fff;border-radius:3px;font-weight:750}.content-sidebar{display:grid;gap:16px}.side-panel{padding:19px}.side-panel h3{margin:0 0 10px;font-size:19px}.side-panel a{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-top:1px solid var(--line2);font-size:15px;text-decoration:underline;text-decoration-color:#d2d6db;text-underline-offset:3px}.side-panel em{font-style:normal;color:var(--muted)}.tool-list-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.tool-list-card{min-width:0;display:grid;grid-template-columns:82px minmax(0,1fr);gap:15px;padding:16px;border:1px solid var(--line);background:#fff;border-radius:var(--r)}.tool-list-card .tool-thumb{width:82px;height:72px}.tool-list-card h2,.tool-list-card h3{margin:3px 0;font-size:20px;line-height:1.35;text-decoration:underline;text-underline-offset:4px}.tool-list-card p{margin:5px 0;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.pagination{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px}.pagination a{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);background:#fff;border-radius:3px}.pagination a.active{background:var(--dark);color:#fff}.detail-head{display:flex;gap:17px;margin-bottom:22px}.detail-head>img{width:76px;height:76px;object-fit:cover;border:1px solid var(--line);border-radius:3px}.detail-head h1{font-size:34px;margin:2px 0}.detail-head p{margin:5px 0;color:var(--muted)}.tool-frame{width:100%;border:1px solid var(--line);border-radius:3px;overflow:hidden;background:#fff}.tool-frame iframe{display:block;width:100%;height:720px;min-height:620px;border:0}.rich-content{font-size:17px;line-height:1.9}.rich-content h2{font-size:28px;margin-top:36px}.rich-content h3{font-size:22px}.rich-content img{display:block;max-width:100%;height:auto;margin:24px auto;border-radius:3px}.article-list{display:grid;gap:15px}.article-row{display:grid;grid-template-columns:230px minmax(0,1fr);gap:19px;padding:15px;border:1px solid var(--line);border-radius:var(--r)}.article-row img,.article-row .cover-placeholder{width:230px;height:150px;object-fit:cover}.article-row h2{margin:4px 0;font-size:21px;line-height:1.4;text-decoration:underline;text-underline-offset:4px}.article-row p{font-size:14px;color:var(--muted);margin:5px 0}.article-row small{color:var(--muted)}.article-detail h1{font-size:39px;line-height:1.25;margin:8px 0}.article-hero,.page-cover{width:100%;max-height:520px;object-fit:cover;margin:22px 0;border-radius:3px}.article-meta{color:var(--muted);font-size:14px}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag-list a{padding:5px 10px;background:#eef1f4;border:1px solid var(--line);border-radius:3px;font-size:14px;text-decoration:underline}.contact-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}.contact-side{display:grid;gap:16px;align-content:start}.contact-side section{padding:20px;background:#fff;border:1px solid var(--line)}.contact-side h2{font-size:20px;margin:0 0 6px}.contact-side p{margin:0;color:var(--muted)}.contact-form{display:grid;gap:17px}.contact-form label{display:grid;gap:7px;font-weight:700}.contact-form input,.contact-form textarea,.contact-form select{width:100%;min-height:48px;padding:11px 13px;border:1px solid #cbd1d8;border-radius:3px;background:#fff;outline:0}.contact-form textarea{min-height:190px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.contact-submit{width:fit-content;min-height:48px;padding:0 24px;border:0;background:var(--dark);color:#fff;border-radius:3px;font-weight:750}.form-note{color:var(--muted);font-size:13px}.honeypot{position:absolute!important;left:-9999px!important}.notice{padding:13px 15px;margin-bottom:18px;border:1px solid var(--line)}.notice.success{background:#edf8f1;border-color:#bfe1ca}.notice.error{background:#fff2f2;border-color:#ebc1c1}.image-error{visibility:hidden}.ad-slot{margin-block:18px}.empty{color:var(--muted)}@media(max-width:1000px){.header-main{grid-template-columns:1fr auto auto}.site-search{grid-column:1/-1;order:5;margin-bottom:14px}.mobile-menu{display:block}.site-nav{display:none}.site-nav.open{display:block}.site-nav .container{height:auto;flex-wrap:wrap;padding:12px 16px}.tool-grid,.category-columns,.featured-links,.directory-grid{grid-template-columns:repeat(2,1fr)}.article-grid{grid-template-columns:repeat(2,1fr)}.content-layout,.contact-layout{grid-template-columns:1fr}.content-sidebar{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){body{font-size:16px}.container{width:min(calc(100% - 20px),var(--container))}.site-top{display:none}.header-main{min-height:64px;grid-template-columns:1fr auto auto;gap:8px;padding:10px 0}.site-logo{font-size:23px}.feedback-link{width:44px;padding:0;align-items:center}.feedback-link strong{font-size:0}.feedback-link strong:before{content:'反馈';font-size:12px}.feedback-link small{display:none}.site-search{height:45px}.hero{padding:42px 0}.hero h1{font-size:33px}.hero p{font-size:16px}.hero-search{height:50px}.featured-links,.category-columns,.tool-grid,.directory-grid,.article-grid,.tool-list-grid{grid-template-columns:1fr}.tool-card{grid-template-columns:68px 1fr}.article-row{grid-template-columns:1fr}.article-row img,.article-row .cover-placeholder{width:100%;height:190px}.filter-bar{grid-template-columns:1fr}.content-sidebar{grid-template-columns:1fr}.content-main{padding:18px}.page-heading h1,.detail-head h1,.article-detail h1{font-size:27px}.footer-grid,.form-row{grid-template-columns:1fr}.tool-frame iframe{min-height:620px}.section{padding:38px 0}.section-title{align-items:flex-start;flex-direction:column;gap:8px}.section-title h2{font-size:26px}}/* V12 tool detail: workspace first, information below */
.tool-detail-page{display:grid;gap:22px}.tool-detail-head{margin:0}.tool-workspace{width:100%;padding:18px;background:#fff;border:1px solid var(--line);border-radius:3px;overflow:hidden}.tool-workspace .tool-iframe{display:block;width:100%;min-height:680px;border:0;background:#fff}.tool-after-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.tool-description{min-width:0}.tool-after-layout .sidebar{position:static}@media(max-width:900px){.tool-after-layout{grid-template-columns:1fr}.tool-workspace{padding:10px}.tool-workspace .tool-iframe{min-height:620px}}

/* AMZ10 V16 front-end refinements */
.home-tool-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.home-tool-card{display:flex;min-height:190px;flex-direction:column;align-items:flex-start;padding:22px;background:#fff;border:1px solid var(--line);border-radius:3px}.home-tool-card:hover{transform:translateY(-2px);border-color:#9da6b2;box-shadow:0 10px 24px rgba(16,24,40,.07)}.home-tool-card .tool-category-label{display:inline-flex;margin-bottom:13px;padding:3px 8px;background:#f1f3f5;color:#596273;border:1px solid #e2e6ea;font-size:13px}.home-tool-card h3{margin:0 0 9px;font-size:20px;line-height:1.35;text-decoration:underline;text-decoration-color:#c3c9d0;text-underline-offset:5px}.home-tool-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.home-tool-card em{margin-top:auto;padding-top:17px;color:#20242a;font-size:14px;font-style:normal;font-weight:700}
.tool-list-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-list-card{position:relative;display:flex;min-height:210px;flex-direction:column;align-items:flex-start;padding:22px;background:#fff;border:1px solid var(--line);border-radius:3px;transition:.18s}.tool-list-card.has-icon{display:grid;grid-template-columns:72px minmax(0,1fr);min-height:210px;align-content:start}.tool-list-card:hover{border-color:#98a1ad;box-shadow:0 9px 22px rgba(16,24,40,.07);transform:translateY(-2px)}.tool-list-icon{width:72px;height:72px;object-fit:contain;padding:6px;background:#f7f8fa;border:1px solid var(--line2);border-radius:3px}.tool-list-content{min-width:0;display:flex;height:100%;flex-direction:column;align-items:flex-start}.tool-list-card.no-icon .tool-list-content{width:100%}.tool-list-card span{display:inline-flex;margin-bottom:8px;padding:2px 7px;background:#f3f4f6;border:1px solid #e6e8eb;color:#596273;font-size:12px}.tool-list-card h2{margin:0 0 8px;font-size:21px;line-height:1.35;text-decoration:underline;text-decoration-color:#c2c8cf;text-underline-offset:5px}.tool-list-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.tool-list-card em{margin-top:auto;padding-top:16px;color:#20242a;font-size:14px;font-style:normal;font-weight:700}.filter-bar{grid-template-columns:minmax(260px,1fr) 230px 120px;padding:18px;gap:13px;background:#fff;box-shadow:0 4px 16px rgba(16,24,40,.04)}
.tool-page-wrap{max-width:1440px}.tool-detail-page{display:block;width:100%}.tool-detail-head{padding:28px;background:#fff;border:1px solid var(--line);border-radius:3px}.tool-detail-head>img{width:82px;height:82px;object-fit:contain;padding:7px;background:#f8f9fa}.tool-detail-category{display:inline-flex;padding:3px 8px;background:#f1f3f5;border:1px solid #e3e6e9;color:#5b6573;font-size:13px}.tool-detail-head h1{font-size:38px;line-height:1.2}.tool-workspace-section{width:100%;margin:22px 0;padding:0;background:#fff;border:1px solid var(--line);border-radius:3px;overflow:hidden}.workspace-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:19px 22px;border-bottom:1px solid var(--line);background:#f8f9fa}.workspace-heading span{font-size:13px;color:var(--muted)}.workspace-heading h2{margin:3px 0 0;font-size:22px}.workspace-heading small{color:var(--muted)}.tool-workspace{display:block;width:100%;min-width:0;padding:0;background:#fff;overflow:visible}.tool-iframe{display:block;width:100%!important;max-width:none!important;min-width:100%!important;height:760px;min-height:680px;border:0!important;background:#fff}.tool-description{margin-top:22px;padding:30px;background:#fff;border:1px solid var(--line);border-radius:3px}.tool-related-area{margin-top:22px}.tool-related-area .content-sidebar{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tool-related-area .side-panel{height:100%;background:#fff}.tool-related-area .side-panel a{font-size:16px}.tool-related-area .side-panel h3{font-size:21px}
@media(max-width:1100px){.home-tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-list-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-related-area .content-sidebar{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.home-tool-grid,.tool-list-grid{grid-template-columns:1fr}.tool-list-card,.tool-list-card.has-icon{min-height:0}.filter-bar{grid-template-columns:1fr}.tool-detail-head{padding:20px}.tool-detail-head h1{font-size:30px}.workspace-heading{align-items:flex-start;flex-direction:column}.tool-iframe{min-height:740px}.tool-description{padding:21px}.tool-related-area .content-sidebar{grid-template-columns:1fr}}


/* Footer */
.site-footer{
  margin-top:64px;
  padding:0;
  color:#d9dee7;
  background:#15181d;
  border-top:1px solid #2b3038;
}
.site-footer .footer-grid{
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(150px,1fr) minmax(150px,1fr);
  gap:56px;
  align-items:start;
  padding-top:48px;
  padding-bottom:40px;
}
.site-footer .footer-grid>div{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:11px;
  min-width:0;
}
.site-footer .footer-grid strong{
  display:block;
  margin:0 0 4px;
  color:#fff;
  font-size:25px;
  line-height:1.2;
  letter-spacing:.2px;
}
.site-footer .footer-grid p{
  max-width:430px;
  margin:0;
  color:#aeb6c2;
  font-size:15px;
  line-height:1.85;
}
.site-footer .footer-grid a{
  display:inline-flex;
  align-items:center;
  min-height:30px;
  color:#d9dee7;
  font-size:15px;
  line-height:1.5;
  text-decoration:underline;
  text-decoration-color:#525b68;
  text-decoration-thickness:1px;
  text-underline-offset:5px;
  transition:color .18s ease,text-decoration-color .18s ease,transform .18s ease;
}
.site-footer .footer-grid a:hover{
  color:#fff;
  text-decoration-color:#fff;
  transform:translateX(2px);
}
.site-footer .copyright{
  margin-top:0;
  padding-top:19px;
  padding-bottom:21px;
  color:#88919e;
  border-top:1px solid #30353d;
  font-size:13px;
  line-height:1.5;
  text-align:center;
}
@media(max-width:760px){
  .site-footer{margin-top:46px}
  .site-footer .footer-grid{
    grid-template-columns:1fr;
    gap:25px;
    padding-top:34px;
    padding-bottom:30px;
  }
  .site-footer .footer-grid>div{gap:8px}
  .site-footer .footer-grid strong{font-size:23px}
  .site-footer .copyright{padding-top:16px;padding-bottom:18px}
}

/* Amazon Seller Navigation V15 */
:root{--amazon:#131921;--amazon2:#232f3e;--orange:#febd69;--line:#d5d9d9;--blue:#007185;--soft:#f7f8f8}
body{margin:0;color:#111;font:16px/1.55 Arial,"Microsoft YaHei",sans-serif;background:#fff}a{color:var(--blue);text-underline-offset:3px}.amazon-wrap{width:min(1580px,calc(100% - 28px));margin:auto}.amazon-topbar{background:var(--amazon);color:#fff;font-size:13px}.amazon-topbar .amazon-wrap{display:flex;justify-content:space-between;gap:20px;padding:7px 0}.amazon-topbar nav{display:flex;gap:16px;flex-wrap:wrap}.amazon-topbar a{color:#fff}.amazon-header{position:sticky;top:0;z-index:100;background:var(--amazon2);box-shadow:0 1px 4px #0005}.amazon-header-main{display:grid;grid-template-columns:240px minmax(320px,900px) auto;gap:18px;align-items:center;padding:10px 0}.amazon-logo{color:#fff;text-decoration:none;font-size:23px;font-weight:700}.amazon-search{display:flex;height:43px}.amazon-search select{width:92px;border:0;border-radius:4px 0 0 4px;background:#eee;padding:0 8px}.amazon-search input{flex:1;min-width:0;border:0;padding:0 13px}.amazon-search button{width:76px;border:0;border-radius:0 4px 4px 0;background:var(--orange);font-weight:700}.admin-login-link{color:#fff;font-weight:700}.amazon-home,.amazon-page{padding:16px 0 36px}.breadcrumb{margin-bottom:10px;color:#666;font-size:13px}.amazon-hero{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(320px,.55fr);gap:14px}.hero-directory,.hero-login>section,.amazon-section,.website-detail{border:1px solid var(--line);background:#fff}.section-title{display:flex;justify-content:space-between;align-items:center;padding:10px 13px;border-bottom:1px solid var(--line);background:#eaeded}.section-title h1,.section-title h2{margin:0;font-size:21px}.section-title span,.section-title p{margin:2px 0 0;color:#565959;font-size:13px}.hero-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}.hero-links a{display:flex;min-height:92px;padding:12px;flex-direction:column;background:#fff;text-decoration:none}.hero-links strong{font-size:17px;text-decoration:underline}.hero-links small{margin-top:3px;color:#565959}.hero-links em{margin-top:auto;color:#777;font-style:normal;font-size:12px}.hero-login{display:grid;gap:14px}.hero-login h2{margin:0;padding:9px 11px;border-bottom:1px solid var(--line);background:#eaeded;font-size:18px}.login-main{display:block;margin:12px;padding:10px;background:var(--orange);color:#111;text-align:center;text-decoration:none;font-weight:700}.login-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line)}.login-grid a{padding:9px;background:#fff;text-align:center}.hero-login ul{list-style:none;margin:0;padding:4px 12px 10px}.hero-login li{padding:7px 0;border-bottom:1px dotted #ccc}.hero-login li small{display:block;color:#666}.amazon-section{margin-top:14px}.amazon-link-grid{display:grid;grid-template-columns:repeat(var(--cols,6),minmax(0,1fr));gap:1px;background:var(--line)}.amazon-link-grid>a{display:flex;min-height:46px;padding:8px;background:#fff;align-items:center;justify-content:center;text-align:center;font-weight:700}.amazon-category-grid{display:grid;grid-template-columns:repeat(var(--cols,4),minmax(0,1fr));gap:10px;padding:12px;background:#fafafa}.amazon-category-grid article{padding:12px;border:1px solid var(--line);background:#fff}.amazon-category-grid h3{margin:0 0 5px}.amazon-category-grid p{margin:0 0 6px;color:#565959;font-size:14px}.amazon-table{width:100%;border-collapse:collapse}.amazon-table th,.amazon-table td{padding:10px;border:1px solid var(--line);text-align:left}.amazon-table th{background:#f0f2f2}.amazon-article-grid{display:grid;grid-template-columns:repeat(var(--cols,6),minmax(0,1fr));gap:10px;padding:10px}.amazon-article-grid article{border:1px solid var(--line);background:#fff}.amazon-article-grid img{width:100%;aspect-ratio:16/9;object-fit:cover}.amazon-article-grid h3,.amazon-article-grid p{margin:9px 10px}.amazon-article-grid p{color:#565959;font-size:13px}.amazon-site-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:12px}.amazon-site-card{display:flex;gap:12px;padding:13px;border:1px solid var(--line)}.amazon-site-card img{width:64px;height:64px;object-fit:contain}.amazon-site-card h2{margin:0;font-size:19px}.amazon-site-card p{margin:4px 0;color:#565959}.category-filter{display:flex;gap:7px;flex-wrap:wrap;padding:10px;border:1px solid var(--line);border-top:0}.category-filter a{padding:6px 9px;border:1px solid var(--line);background:#fff}.website-detail{padding:20px}.website-detail header{display:flex;gap:18px;align-items:flex-start}.website-logo{width:100px;height:100px;object-fit:contain;border:1px solid var(--line)}.website-detail h1{margin:4px 0}.website-detail header p{color:#565959}.amazon-button{display:inline-block;padding:9px 16px;border-radius:3px;background:var(--orange);color:#111;text-decoration:none;font-weight:700}.website-cover{width:100%;max-height:460px;margin-top:18px;object-fit:cover}.article-content{max-width:1000px;margin:25px auto;font-size:17px}.amazon-footer{padding:28px 0;background:var(--amazon2);color:#fff}.amazon-footer a{margin-right:14px;color:#fff}.back-top{position:fixed;right:18px;bottom:18px;display:none;width:44px;height:44px;border:0;border-radius:50%;background:var(--amazon2);color:#fff;font-size:22px}.back-top.show{display:block}
@media(max-width:1050px){.amazon-header-main{grid-template-columns:200px 1fr auto}.amazon-hero{grid-template-columns:1fr}.hero-links{grid-template-columns:repeat(3,1fr)}.amazon-link-grid{grid-template-columns:repeat(4,1fr)!important}.amazon-category-grid{grid-template-columns:repeat(2,1fr)!important}.amazon-article-grid{grid-template-columns:repeat(3,1fr)!important}.amazon-site-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){.amazon-topbar nav{display:none}.amazon-header-main{grid-template-columns:1fr auto}.amazon-search{grid-column:1/-1;grid-row:2}.amazon-logo{font-size:20px}.hero-links{grid-template-columns:repeat(2,1fr)}.amazon-link-grid{grid-template-columns:repeat(2,1fr)!important}.amazon-category-grid,.amazon-article-grid,.amazon-site-grid{grid-template-columns:1fr!important}.amazon-table,.amazon-table tbody,.amazon-table tr,.amazon-table td{display:block;width:100%}.amazon-table th{display:none}.amazon-table tr{border-bottom:1px solid var(--line)}.website-detail header{flex-direction:column}.amazon-wrap{width:min(100% - 16px,1580px)}}

/* Yousou.cn visual system 2026 */
:root{--ys-bg:#f8fafc;--ys-card:#fff;--ys-text:#0f172a;--ys-muted:#64748b;--ys-border:#e2e8f0;--ys-primary:#4f46e5;--ys-primary2:#7c3aed;--ys-soft:#eef2ff;--ys-accent:#06b6d4;--ys-radius:12px;--ys-shadow:0 12px 34px rgba(15,23,42,.08)}
body{background:var(--ys-bg);color:var(--ys-text);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif}.ys-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,232,240,.9)}.ys-nav-shell{max-width:1440px;height:72px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:32px}.ys-brand{display:flex;align-items:center;gap:11px;color:var(--ys-text);text-decoration:none;white-space:nowrap}.ys-brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(135deg,var(--ys-primary),var(--ys-primary2));color:#fff;font-weight:900;font-size:21px;box-shadow:0 8px 20px rgba(79,70,229,.24)}.ys-brand b,.ys-brand small{display:block}.ys-brand b{font-size:18px}.ys-brand small{font-size:11px;color:var(--ys-muted);margin-top:1px}.ys-main-nav{display:flex;align-items:center;gap:4px;flex:1}.ys-main-nav a{padding:9px 12px;border-radius:8px;text-decoration:none;color:#334155;font-size:14px;font-weight:600}.ys-main-nav a:hover{background:var(--ys-soft);color:var(--ys-primary)}.ys-nav-actions{display:flex;gap:8px}.ys-nav-actions a{padding:9px 14px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:700}.ys-ghost{border:1px solid var(--ys-border);color:#334155;background:#fff}.ys-primary{background:var(--ys-text);color:#fff}.ys-menu-btn,.ys-mobile-panel,.ys-overlay{display:none}.ys-container{max-width:1380px;margin:auto;padding:32px 28px 70px}.ys-hero{position:relative;overflow:hidden;text-align:center;padding:74px 28px 44px;border:1px solid #dfe4ff;border-radius:20px;background:radial-gradient(circle at 20% 0%,rgba(6,182,212,.14),transparent 32%),radial-gradient(circle at 85% 10%,rgba(124,58,237,.15),transparent 35%),linear-gradient(180deg,#fff,#f7f7ff)}.ys-kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid #d9ddff;border-radius:999px;background:#fff;color:var(--ys-primary);font-size:13px;font-weight:700}.ys-kicker span{width:8px;height:8px;border-radius:50%;background:var(--ys-accent);box-shadow:0 0 0 5px rgba(6,182,212,.12)}.ys-hero h1{max-width:900px;margin:22px auto 14px;font-size:clamp(34px,5vw,62px);letter-spacing:-2.4px;line-height:1.08}.ys-hero>p{max-width:780px;margin:0 auto;color:var(--ys-muted);font-size:18px;line-height:1.8}.ys-search-card{max-width:930px;margin:34px auto 20px;padding:8px;display:grid;grid-template-columns:150px 1fr 132px;gap:8px;background:#fff;border:1px solid #dbe1ea;border-radius:14px;box-shadow:0 20px 55px rgba(79,70,229,.13)}.ys-search-card select,.ys-search-card input,.ys-search-card button{height:52px;border-radius:9px;font-size:15px}.ys-search-card select,.ys-search-card input{border:1px solid var(--ys-border);background:#fff;padding:0 15px}.ys-search-card input{min-width:0}.ys-search-card 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a{color:var(--ys-primary);font-size:12px;text-decoration:none}.ys-cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.ys-cat-grid>a{padding:20px;border:1px solid var(--ys-border);border-radius:11px;text-decoration:none;color:var(--ys-text)}.ys-cat-grid>a>span{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:var(--ys-soft);color:var(--ys-primary);font-weight:900}.ys-cat-grid h3{font-size:16px;margin:13px 0 7px}.ys-cat-grid p{color:var(--ys-muted);font-size:13px;min-height:40px}.ys-cat-grid small{color:var(--ys-primary)}.ys-article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.ys-article-grid article{border:1px solid var(--ys-border);border-radius:12px;overflow:hidden}.ys-article-cover{height:150px;display:grid;place-items:center;background:linear-gradient(135deg,#e0e7ff,#ecfeff)}.ys-article-cover span{color:var(--ys-primary);font-size:18px;font-weight:800}.ys-article-grid article>div:last-child{padding:18px}.ys-article-grid h3{font-size:18px;line-height:1.5}.ys-article-grid h3 a{color:var(--ys-text);text-decoration:none}.ys-article-grid p{color:var(--ys-muted);font-size:13px;line-height:1.75}.ys-article-grid article>div>a{color:var(--ys-primary);text-decoration:none;font-size:13px;font-weight:700}.ys-tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.ys-tool-grid a{display:block;padding:17px;border:1px solid var(--ys-border);border-radius:10px;text-decoration:none;color:var(--ys-text)}.ys-tool-grid strong,.ys-tool-grid span{display:block}.ys-tool-grid span{margin-top:6px;color:var(--ys-muted);font-size:12px}.ys-footer{background:#0f172a;color:#cbd5e1;padding:50px 28px 22px}.ys-footer-grid{max-width:1380px;margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px}.footer-brand{color:#fff}.ys-footer p{max-width:480px;color:#94a3b8;line-height:1.8}.ys-footer h3{color:#fff;font-size:14px}.ys-footer-grid>div>a:not(.ys-brand){display:block;color:#94a3b8;text-decoration:none;margin:9px 0}.ys-footer-bottom{max-width:1380px;margin:36px auto 0;padding-top:18px;border-top:1px solid #263248;color:#64748b;font-size:12px}.field input,.field select,.field textarea,.admin-main input,.admin-main select,.admin-main textarea{border:1px solid #cbd5e1;border-radius:8px;padding:10px 12px;background:#fff}.btn,.admin-main button{border-radius:8px}
@media(max-width:1050px){.ys-main-nav a{padding:8px}.ys-nav-actions .ys-ghost{display:none}.ys-site-grid,.ys-cat-grid{grid-template-columns:repeat(3,1fr)}.ys-feature-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.ys-nav-shell{height:64px;padding:0 16px}.ys-main-nav,.ys-nav-actions{display:none}.ys-menu-btn{margin-left:auto;width:42px;height:42px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;border:1px solid var(--ys-border);border-radius:9px;background:#fff}.ys-menu-btn i{display:block;width:20px;height:2px;background:#334155;transition:.2s}.ys-mobile-panel{display:block;position:fixed;z-index:1100;top:64px;right:0;bottom:0;width:min(84vw,360px);padding:18px;background:#fff;transform:translateX(105%);transition:.24s}.ys-mobile-panel nav{display:grid}.ys-mobile-panel a{padding:14px 12px;border-bottom:1px solid var(--ys-border);text-decoration:none;color:var(--ys-text);font-weight:650}.ys-overlay{position:fixed;z-index:1050;inset:64px 0 0;background:rgba(15,23,42,.45)}.ys-menu-open .ys-mobile-panel{transform:none}.ys-menu-open .ys-overlay{display:block}.ys-menu-open{overflow:hidden}.ys-menu-open .ys-menu-btn i:nth-child(1){transform:translateY(7px) rotate(45deg)}.ys-menu-open .ys-menu-btn i:nth-child(2){opacity:0}.ys-menu-open .ys-menu-btn i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.ys-container{padding:20px 14px 50px}.ys-hero{padding:52px 18px 34px;border-radius:14px}.ys-hero h1{letter-spacing:-1.4px}.ys-search-card{grid-template-columns:125px 1fr}.ys-search-card button{grid-column:1/-1}.ys-feature-row,.ys-site-grid,.ys-cat-grid,.ys-tool-grid{grid-template-columns:repeat(2,1fr)}.ys-article-grid{grid-template-columns:1fr}.ys-section{padding:20px}.ys-footer-grid{grid-template-columns:1fr 1fr}.ys-footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:560px){.ys-brand small{display:none}.ys-brand-mark{width:36px;height:36px}.ys-hero{padding-top:40px}.ys-hero h1{font-size:35px}.ys-hero>p{font-size:15px}.ys-search-card{grid-template-columns:1fr;padding:7px}.ys-search-card button{grid-column:auto}.ys-stats{grid-template-columns:repeat(2,1fr);gap:18px}.ys-stats div:nth-child(2){border:0}.ys-feature-row,.ys-site-grid,.ys-cat-grid,.ys-tool-grid{grid-template-columns:1fr}.ys-section-head{align-items:flex-start}.ys-section-head>a{display:none}.ys-footer-grid{grid-template-columns:1fr}.ys-footer-grid>div:first-child{grid-column:auto}}

/* Yousou V3 - ChatGPT-inspired accessible theme */
:root{--ys-primary:#10a37f;--ys-primary2:#10a37f;--ys-accent:#10a37f;--ys-text:#202123;--ys-muted:#565869;--ys-border:#d9d9e3;--ys-soft:#f7f7f8;--ys-radius:8px;--ys-shadow:0 8px 24px rgba(0,0,0,.06)}
html{font-size:17px}body{background:#fff;color:var(--ys-text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
a{color:#202123;text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px}a:hover{color:#0d8f70}
.ys-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--ys-border);box-shadow:none}.ys-nav-shell{max-width:1440px}.ys-brand{gap:0;color:#202123;text-decoration:none}.ys-brand>b,.ys-brand b{font-size:23px;letter-spacing:-.4px}.ys-brand small{font-size:12px;color:#6e6e80}.ys-main-nav{gap:2px}.ys-main-nav a{color:#343541;font-size:16px;font-weight:600;border-radius:6px;text-decoration:underline;text-decoration-color:#b7b7c3;text-underline-offset:5px}.ys-main-nav a:hover{background:#f7f7f8;color:#202123}.ys-nav-actions a{font-size:15px;border-radius:6px}.ys-ghost{border-color:#c5c5d2;color:#202123}
.ys-container{max-width:1440px;padding-top:28px}.ys-hero{border:1px solid var(--ys-border);border-radius:10px;background:#f7f7f8;padding:68px 28px 42px}.ys-kicker{border-color:#cfcfd8;border-radius:999px;color:#202123;background:#fff;font-size:14px}.ys-kicker span{background:#10a37f;box-shadow:none}.ys-hero h1{font-size:clamp(38px,5vw,64px);letter-spacing:-2px}.ys-hero>p{font-size:20px;color:#565869}.ys-search-card{border:1px solid #c5c5d2;border-radius:10px;box-shadow:0 8px 28px rgba(0,0,0,.07)}.ys-search-card select,.ys-search-card input,.ys-search-card button{height:56px;border-radius:7px;font-size:17px}.ys-search-card button{background:#10a37f}.ys-search-card button:hover{background:#0d8f70}.ys-hot a{font-size:15px;border-radius:6px;color:#202123;text-decoration:underline;background:#fff}.ys-stats b{font-size:28px}.ys-stats span{font-size:14px}
.ys-feature-row>a,.ys-site-grid article,.ys-cat-grid>a,.ys-tool-grid a,.ys-section,.ys-article-grid article{border-radius:8px;box-shadow:none}.ys-feature-row>a{align-items:flex-start;text-decoration:none}.ys-feature-row h3,.ys-site-grid h3,.ys-cat-grid h3,.ys-tool-grid strong{font-size:19px}.ys-feature-row h3,.ys-site-grid h3 a,.ys-cat-grid h3,.ys-tool-grid strong{text-decoration:underline;text-underline-offset:4px}.ys-feature-row p,.ys-site-grid p,.ys-cat-grid p,.ys-tool-grid span{font-size:15px}.ys-site-top{justify-content:flex-start}.ys-site-top small{font-size:13px;color:#6e6e80}.ys-site-grid h3 a,.ys-article-grid h3 a,.ys-section-head>a,.ys-site-grid article>div:last-child a,.ys-article-grid article>div>a{color:#202123;text-decoration:underline;text-underline-offset:4px}.ys-cat-grid>a{color:#202123}.ys-cat-grid small{color:#565869;font-size:14px}.ys-article-cover{display:none}.ys-article-grid article>div:last-child{padding:22px}.ys-section-head h2{font-size:32px}.ys-section-head p{font-size:16px}.ys-section-head small{color:#6e6e80}.ys-footer{background:#202123}.footer-brand{color:#fff}.ys-footer-grid>div>a:not(.ys-brand){color:#ececf1;text-decoration:underline}.ys-footer p{color:#c5c5d2}
.amazon-site-card img,.tool-list-icon,.website-logo{display:none!important}.amazon-site-card{font-size:16px}.amazon-site-card h2{font-size:22px}.amazon-site-card h2 a,.tool-list-card h2,.category-filter a{text-decoration:underline;text-underline-offset:4px}.tool-list-card{border-radius:8px}.tool-list-card h2{font-size:21px}.tool-list-card p{font-size:16px}.admin-login-link{display:none!important}
@media(max-width:900px){.ys-menu-btn{border-radius:6px}.ys-mobile-panel a{font-size:18px;text-decoration:underline;text-underline-offset:5px}.ys-search-card{grid-template-columns:1fr}.ys-search-card button{grid-column:auto}.ys-feature-row,.ys-site-grid,.ys-cat-grid,.ys-tool-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){html{font-size:16px}.ys-brand b{font-size:21px}.ys-hero{padding:40px 17px 30px}.ys-hero h1{font-size:36px}.ys-hero>p{font-size:17px}.ys-feature-row,.ys-site-grid,.ys-cat-grid,.ys-tool-grid{grid-template-columns:1fr}.ys-section{padding:18px}.ys-section-head h2{font-size:27px}.ys-site-grid h3,.ys-cat-grid h3,.ys-tool-grid strong{font-size:20px}}

/* Yousou V4 - usability-first homepage and redesigned content pages */
.ys-home-v4{background:#fff}.ys-v4-wrap{width:min(calc(100% - 32px),1320px);margin:auto;padding:34px 0 70px}.ys-v4-hero{padding:58px 58px 44px;border:1px solid #d9d9e3;background:#f7f7f8}.ys-v4-eyebrow{margin:0 0 12px;color:#565869;font-size:15px;font-weight:700}.ys-v4-hero h1{max-width:900px;margin:0;font-size:clamp(42px,5.7vw,72px);line-height:1.08;letter-spacing:-2.4px}.ys-v4-lead{max-width:860px;margin:20px 0 28px;color:#565869;font-size:21px}.ys-v4-search{display:grid;grid-template-columns:190px minmax(260px,1fr) 150px;gap:10px;max-width:1000px}.ys-v4-search label{display:grid;gap:7px}.ys-v4-search label span{font-size:14px;font-weight:700}.ys-v4-search select,.ys-v4-search input,.ys-v4-search button{height:58px;border:1px solid #b7b7c3;border-radius:6px;background:#fff;padding:0 16px;font-size:18px}.ys-v4-search input:focus,.ys-v4-search select:focus{outline:3px solid rgba(16,163,127,.18);border-color:#10a37f}.ys-v4-search button{align-self:end;border-color:#202123;background:#202123;color:#fff;font-weight:750;cursor:pointer}.ys-v4-search button:hover{background:#10a37f;border-color:#10a37f}.ys-v4-shortcuts{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:24px;font-size:16px}.ys-v4-shortcuts a{text-decoration-thickness:1.5px}.ys-v4-block{padding:48px 0;border-bottom:1px solid #e5e5ea}.ys-v4-first-block{padding-top:42px}.ys-v4-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:22px}.ys-v4-heading span{color:#6e6e80;font-size:14px;font-weight:700}.ys-v4-heading h2{margin:4px 0 0;font-size:34px;line-height:1.2}.ys-v4-heading p{margin:8px 0 0;color:#6e6e80;font-size:16px}.ys-v4-heading>a{font-weight:700}.ys-v4-link-table{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #d9d9e3;border-left:1px solid #d9d9e3}.ys-v4-link-table article{min-width:0;padding:21px;border-right:1px solid #d9d9e3;border-bottom:1px solid #d9d9e3}.ys-v4-link-table h3,.ys-v4-directory h3,.ys-v4-news h3{margin:0 0 9px;font-size:21px}.ys-v4-link-table p,.ys-v4-directory p,.ys-v4-news p{margin:0 0 14px;color:#565869;font-size:16px;line-height:1.65}.ys-v4-link-table article>div,.ys-v4-directory article>div{display:flex;gap:16px;flex-wrap:wrap;font-size:14px}.ys-v4-categories{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.ys-v4-categories>a{display:grid;gap:7px;padding:20px;border:1px solid #d9d9e3;background:#fff}.ys-v4-categories strong{font-size:20px;text-decoration:underline;text-underline-offset:4px}.ys-v4-categories span{color:#565869;font-size:15px}.ys-v4-categories small{color:#6e6e80}.ys-v4-directory{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.ys-v4-directory article{padding:22px;border:1px solid #d9d9e3}.ys-v4-directory small,.ys-v4-news small{color:#6e6e80;font-size:13px}.ys-v4-news{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.ys-v4-news article{padding:23px;border:1px solid #d9d9e3}.ys-v4-tools{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #d9d9e3;border-left:1px solid #d9d9e3}.ys-v4-tools a{display:grid;gap:8px;padding:20px;border-right:1px solid #d9d9e3;border-bottom:1px solid #d9d9e3}.ys-v4-tools strong{font-size:19px;text-decoration:underline;text-underline-offset:4px}.ys-v4-tools span{color:#565869;font-size:15px}
.ys-detail-page{background:#f7f7f8;padding:34px 0 72px}.ys-detail-wrap,.ys-article-wrap{width:min(calc(100% - 32px),1180px);margin:auto}.ys-detail-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;color:#6e6e80;font-size:14px}.ys-detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}.ys-detail-main,.ys-reading{background:#fff;border:1px solid #d9d9e3}.ys-detail-hero{padding:42px 46px;border-bottom:1px solid #e5e5ea}.ys-detail-category{display:inline-block;margin-bottom:13px;padding:5px 9px;border:1px solid #d9d9e3;border-radius:999px;color:#565869;font-size:13px;font-weight:700}.ys-detail-hero h1,.ys-reading h1{margin:0;font-size:clamp(38px,5vw,58px);line-height:1.12;letter-spacing:-1.7px}.ys-detail-hero>p{max-width:760px;margin:18px 0 24px;color:#565869;font-size:20px}.ys-detail-actions{display:flex;flex-wrap:wrap;gap:13px;align-items:center}.ys-detail-actions a{display:inline-flex;min-height:48px;align-items:center;padding:0 17px;border:1px solid #b7b7c3;border-radius:6px;font-weight:700}.ys-detail-actions .ys-primary-action{border-color:#202123;background:#202123;color:#fff;text-decoration:none}.ys-detail-actions .ys-primary-action:hover{background:#10a37f;border-color:#10a37f}.ys-detail-cover{margin:0;border-bottom:1px solid #e5e5ea}.ys-detail-cover img{width:100%;max-height:480px;object-fit:cover}.ys-detail-content,.ys-detail-note{padding:38px 46px}.ys-detail-content h2,.ys-detail-note h2,.ys-detail-side h2{margin:0 0 18px;font-size:26px}.ys-detail-note{border-top:1px solid #e5e5ea;background:#fafafa}.ys-detail-note p{font-size:17px}.ys-detail-side{position:sticky;top:105px;display:grid;gap:12px}.ys-detail-side>div{padding:22px;border:1px solid #d9d9e3;background:#fff}.ys-detail-side dl{margin:0}.ys-detail-side dt{margin-top:15px;color:#6e6e80;font-size:13px}.ys-detail-side dt:first-child{margin-top:0}.ys-detail-side dd{margin:4px 0 0;font-size:16px}.ys-side-visit{display:block;padding:15px;border-radius:6px;background:#202123;color:#fff;text-align:center;font-weight:700;text-decoration:none}.ys-side-visit:hover{background:#10a37f;color:#fff}.ys-article-wrap{max-width:900px}.ys-reading header{padding:48px 58px 34px;border-bottom:1px solid #e5e5ea}.ys-article-summary{margin:18px 0;color:#565869;font-size:20px;line-height:1.7}.ys-article-meta{display:flex;gap:16px;color:#6e6e80;font-size:14px}.ys-article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.ys-reading-cover{width:100%;max-height:500px;object-fit:cover;margin-top:28px}.ys-reading-content{padding:46px 58px;font-size:19px;line-height:1.9}.ys-reading-content h2{margin:42px 0 16px;font-size:31px}.ys-reading-content h3{margin:32px 0 13px;font-size:25px}.ys-reading-content p{margin:0 0 22px}.ys-reading-content ul,.ys-reading-content ol{padding-left:28px}.ys-reading-content li{margin:9px 0}.ys-reading-content blockquote{margin:28px 0;padding:18px 22px;border-left:4px solid #10a37f;background:#f7f7f8}.ys-reading-content pre{overflow:auto;padding:18px;background:#202123;color:#fff}.ys-reading-content img{margin:26px auto}.ys-reading-footer{display:flex;justify-content:space-between;gap:20px;padding:24px 58px;border-top:1px solid #e5e5ea;background:#fafafa}
@media(max-width:1050px){.ys-v4-link-table{grid-template-columns:repeat(3,1fr)}.ys-v4-categories,.ys-v4-tools{grid-template-columns:repeat(3,1fr)}.ys-detail-layout{grid-template-columns:1fr}.ys-detail-side{position:static;grid-template-columns:1fr 1fr}}
@media(max-width:760px){.ys-v4-wrap{width:min(calc(100% - 20px),1320px);padding-top:18px}.ys-v4-hero{padding:38px 20px 28px}.ys-v4-hero h1{font-size:40px}.ys-v4-lead{font-size:18px}.ys-v4-search{grid-template-columns:1fr}.ys-v4-search button{width:100%}.ys-v4-link-table,.ys-v4-categories,.ys-v4-directory,.ys-v4-news,.ys-v4-tools{grid-template-columns:1fr 1fr}.ys-v4-heading{align-items:start}.ys-v4-heading h2{font-size:29px}.ys-detail-hero,.ys-detail-content,.ys-detail-note{padding:30px 24px}.ys-detail-hero h1,.ys-reading h1{font-size:40px}.ys-detail-hero>p,.ys-article-summary{font-size:18px}.ys-detail-side{grid-template-columns:1fr}.ys-reading header,.ys-reading-content,.ys-reading-footer{padding-left:25px;padding-right:25px}.ys-reading-content{font-size:18px}}
@media(max-width:520px){.ys-v4-link-table,.ys-v4-categories,.ys-v4-directory,.ys-v4-news,.ys-v4-tools{grid-template-columns:1fr}.ys-v4-hero h1{font-size:35px;letter-spacing:-1.2px}.ys-v4-block{padding:36px 0}.ys-v4-heading{display:block}.ys-v4-heading>a{display:inline-block;margin-top:12px}.ys-detail-wrap,.ys-article-wrap{width:min(calc(100% - 16px),1180px)}.ys-detail-page{padding-top:18px}.ys-detail-actions{display:grid}.ys-detail-actions a{justify-content:center}.ys-reading header{padding-top:32px}.ys-reading-content{padding-top:32px}.ys-reading-footer{display:grid}}
/* v7 Apple + ChatGPT + hao123 navigation refinement */
.apple-nav{background:rgba(255,255,255,.94)!important;border-bottom:1px solid #e9e9e9!important;backdrop-filter:saturate(180%) blur(18px)}
.apple-nav .v5-header-inner{max-width:1440px!important;min-height:64px!important}.apple-nav .v5-logo{font-size:25px!important;letter-spacing:-.8px!important;color:#242424!important}.apple-nav .v5-nav a{color:#666!important;text-decoration:none!important;font-size:15px!important;font-weight:500!important}.apple-nav .v5-nav a:hover{color:#222!important}.apple-nav .v5-search-link{background:#f5f5f5!important;color:#555!important;border:1px solid #e8e8e8!important;border-radius:4px!important;text-decoration:none!important}.apple-nav .v5-search-link:hover{background:#ededed!important;color:#222!important}