/*
Theme Name: Lab Certification Pro
Theme URI: https://example.com/
Author: OpenAI
Description: Responsive multi-page laboratory and certification theme with editable content, tabbed certification pages, repeatable article links, inquiry form and certificate verification popup.
Version: 2.0.0
Text Domain: lab-certification-pro
*/
:root{--blue:#286a96;--blue2:#367eae;--blueDark:#164a67;--cyan:#3aa5c6;--soft:#f1f6f8;--line:#d5e1e7;--text:#153247;--muted:#687d89;--white:#fff;--radius:12px;--shadow:0 8px 24px rgba(18,58,79,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth;min-height:100%;height:100%}body{margin:0;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff;line-height:1.55}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.section{padding:64px 0}.soft,.section.soft{background:var(--soft)}.eyebrow{font-size:12px;letter-spacing:.18em;color:#2787ac;font-weight:700;text-transform:uppercase}.section-title{font-size:clamp(30px,4vw,46px);line-height:1.1;margin:8px 0 26px}.section-intro{color:var(--muted);max-width:760px}
/* header */
.topbar{background:#fff;padding:14px 0}.topbar-inner{display:grid;grid-template-columns:minmax(220px,1fr) minmax(260px,1fr) minmax(220px,1fr);align-items:center;gap:24px}.header-logo{justify-self:start;min-width:0}.header-logo a{display:block}.header-logo img,.header-logo .custom-logo{max-height:62px;max-width:320px;width:auto}.header-center{justify-self:center;text-align:center;min-width:0}.header-center a{display:flex;flex-direction:column;align-items:center}.header-center strong{font-size:26px;line-height:1.05;color:#102f42;white-space:nowrap}.header-center span{font-size:12px;letter-spacing:.12em;color:#71838d;margin-top:5px;white-space:nowrap}.mini-contact{justify-self:end;display:flex;flex-direction:column;align-items:flex-end;gap:3px;color:#617581;font-size:14px;line-height:1.35}.contact-phone,.contact-email{white-space:nowrap}.main-nav{background:var(--blue)}.nav-inner{display:flex;align-items:center}.menu-toggle{display:none;background:transparent;color:#fff;border:0;font-size:28px;padding:10px 0;cursor:pointer}.nav-links,.nav-links ul{list-style:none!important;margin:0;padding:0}.nav-links{display:flex;align-items:stretch;width:100%}.nav-links li{margin:0;padding:0}.nav-links a{display:block;color:#fff;padding:16px 20px;font-weight:700;font-size:14px;transition:.2s;background:transparent}.nav-links a:hover{background:rgba(255,255,255,.12)}.nav-links .current-menu-item>a,.nav-links .current_page_item>a,.nav-links .current-menu-ancestor>a{background:#4d94bf}.nav-links li::marker{content:""}.nav-links li:before,.nav-links li:after,.nav-links a:before,.nav-links a:after{content:none!important;display:none!important}.nav-links .current-menu-item>a,.nav-links .current_page_item>a,.nav-links .current-menu-ancestor>a,.nav-links .current_page_parent>a{background:#62a6cf;color:#fff}
/* heroes */
.page-hero{min-height:260px;background-position:center;background-size:cover;display:flex;align-items:center;position:relative}.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,44,63,.58),rgba(8,44,63,.08))}.page-hero .wrap{position:relative}.page-hero h1{color:#fff;font-size:clamp(38px,6vw,62px);margin:0}.home-hero{min-height:520px;background:#dfe8ec center/cover no-repeat;display:flex;align-items:center;position:relative}.home-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,48,69,.74),rgba(11,48,69,.15))}.home-hero-inner{position:relative;color:#fff;max-width:760px;padding:72px 0}.home-hero h1{font-size:clamp(42px,6vw,68px);line-height:1.05;margin:8px 0 18px}.home-hero p{font-size:18px}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--cyan);color:#fff;padding:12px 20px;border-radius:7px;border:0;cursor:pointer;font-weight:700}.btn.secondary{background:#fff;color:var(--blueDark)}
/* generic */
.tabs,.subtabs{display:flex;gap:10px;margin-bottom:26px}.tab-btn,.subtab-btn{appearance:none;border:0;background:#c7dfed;color:#24556f;padding:12px 24px;border-radius:7px;cursor:pointer;font-size:15px;flex:1;transition:.2s}.tab-btn:hover,.subtab-btn:hover{background:#b4d6e9}.tab-btn.active,.subtab-btn.active{background:var(--blue2);color:#fff}.tab-panel,.subtab-panel{display:none}.tab-panel.active,.subtab-panel.active{display:block}.responsive-media{border-radius:12px;overflow:hidden;background:#eaf1f4}.responsive-media img{width:100%;height:auto;object-fit:cover}.split{display:grid;grid-template-columns:1fr 1.2fr;gap:34px;align-items:start}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}.richtext p:first-child{margin-top:0}.stack-images{display:grid;gap:22px}
/* home */
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.feature-item{border:1px solid var(--line);padding:13px 14px;border-radius:8px;background:#fff}.media-card{background:#e7f1f5;border-radius:12px;overflow:hidden;min-height:320px}.media-card img{width:100%;height:100%;object-fit:cover}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.service-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.service-card img{width:100%;height:190px;object-fit:cover}.service-card-body{padding:18px}.service-card-body h3{margin:0 0 8px}.downloads-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.download-row{border:1px solid var(--line);border-radius:8px;padding:15px 16px;display:flex;justify-content:space-between;gap:14px;align-items:center}.download-row a{color:#155e89;font-weight:700}.news-3col{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.news-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px}.news-box h3{margin-top:0}
/* article list */
.resource-list{list-style:none;padding:0;margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.resource-list li{display:grid;grid-template-columns:1fr auto;gap:18px;padding:15px 18px;border-bottom:1px dashed #cfdbe1;align-items:center}.resource-list li:last-child{border-bottom:0}.resource-list a{color:#1d5f88}.resource-list a:hover{text-decoration:underline}.resource-date{font-size:13px;color:#82929a}.empty-note{padding:22px;border:1px dashed #b7c7cf;color:#6f818a;border-radius:10px;background:#fff}
/* Standard inline article */
.standard-inline-article{background:#fff;border:1px solid var(--line);border-radius:12px;padding:30px 32px;box-shadow:var(--shadow)}
.standard-article-title{font-size:clamp(30px,4vw,44px);line-height:1.15;margin:0 0 8px;color:var(--text)}
.standard-article-meta{font-size:13px;color:#82929a;margin-bottom:24px}
.standard-article-content{font-size:16px;color:#253f50;overflow-wrap:anywhere}
.standard-article-content img{max-width:100%;height:auto}
.standard-article-content table{display:block;max-width:100%;overflow-x:auto}
.standard-back-link{display:inline-flex;margin-top:26px;color:#1d5f88;font-weight:700}
.standard-back-link:hover{text-decoration:underline}
/* form */
.inquiry-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field input,.field textarea{width:100%;border:1px solid #c6d3d9;border-radius:7px;padding:12px 13px;font:inherit}.field textarea{min-height:180px;resize:vertical}.form-status{margin-top:14px;font-size:14px}.form-status.ok{color:#13733c}.form-status.err{color:#b2261d}
/* certificate */
.search-panel{position:relative;min-height:430px;background:#eff4f6 center/cover no-repeat;border-radius:14px;overflow:hidden;display:flex;align-items:center}.search-panel:before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.8)}.search-inner{position:relative;width:min(820px,calc(100% - 32px));margin:auto;text-align:center}.search-inner h2{font-size:clamp(34px,5vw,54px);color:#2d8eae;font-weight:400}.certificate-form{display:flex;background:#fff;border:1px solid #d5e0e5;border-radius:999px;padding:4px;box-shadow:0 5px 16px rgba(0,0,0,.08)}.certificate-form input{flex:1;border:0;outline:0;padding:0 20px;font-size:16px;background:transparent}.certificate-form button{border:0;border-radius:999px;background:#3aa5c6;color:#fff;padding:14px 28px;cursor:pointer}.certificate-status{margin-top:16px}.certificate-status.error{color:#b2261d}.modal{position:fixed;inset:0;z-index:9999;display:none}.modal.open{display:block}.modal-bg{position:absolute;inset:0;background:rgba(0,0,0,.76);backdrop-filter:blur(2px)}.modal-dialog{position:relative;width:min(1120px,96vw);height:94vh;margin:3vh auto;background:#fff;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 22px 70px rgba(0,0,0,.35)}.modal-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid #d7e0e5;min-height:58px;background:#fff}.modal-close{border:0;background:#123f57;color:#fff;width:40px;height:40px;border-radius:50%;font-size:26px;line-height:1;cursor:pointer}.modal-pdf-wrap{flex:1;min-height:0;background:#2f3336;overflow:hidden}.modal-frame{display:block;width:100%;height:100%;border:0;background:#2f3336}html.certificate-modal-open,body.certificate-modal-open{overflow:hidden}
/* contact/footer */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}.contact-card{background:#153f58;color:#fff;padding:34px;border-radius:12px}.contact-card h2{font-size:36px;margin:8px 0 18px}.contact-line{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15)}.contact-photo{background:#e4eff4;border-radius:12px;overflow:hidden;min-height:420px}.contact-photo img{width:100%;height:100%;object-fit:cover}.site-footer{background:#eef2f4;padding:40px 0 22px;color:#667982;margin-top:auto}.footer-inner{display:flex;justify-content:space-between;gap:30px}.footer-links{display:flex;gap:16px;flex-wrap:wrap}.copyright{border-top:1px solid #d3dde2;margin-top:26px;padding-top:16px;font-size:13px}
@media(max-width:900px){.topbar-inner{grid-template-columns:auto 1fr auto;gap:14px}.header-logo img,.header-logo .custom-logo{max-height:50px;max-width:220px}.header-center strong{font-size:22px}.header-center span{font-size:10px}.mini-contact{font-size:12px}.menu-toggle{display:block}.nav-inner{display:block}.nav-links{display:none;flex-direction:column}.nav-links.open{display:flex}.nav-links a{padding:13px 4px}.split,.contact-grid,.two-col{grid-template-columns:1fr}.cards{grid-template-columns:1fr 1fr}.news-3col{grid-template-columns:1fr}.downloads-grid{grid-template-columns:1fr}.page-hero{min-height:220px}.tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px}.tab-btn{flex:0 0 auto;min-width:170px}.footer-inner{flex-direction:column}}
@media(max-width:640px){.wrap{width:min(100% - 22px,1180px)}.topbar{padding:10px 0}.topbar-inner{grid-template-columns:minmax(72px,.8fr) minmax(120px,1.25fr) minmax(96px,1fr);gap:8px;text-align:center;padding:0}.header-logo{justify-self:start}.header-center{justify-self:center}.mini-contact{justify-self:end;align-items:flex-end}.header-logo img,.header-logo .custom-logo{max-height:42px;max-width:100%;width:auto}.header-center strong{font-size:17px;white-space:normal}.header-center span{font-size:8.5px;letter-spacing:.08em;white-space:normal}.mini-contact{font-size:10px;gap:2px}.contact-phone,.contact-email{white-space:normal;overflow-wrap:anywhere;text-align:right}.home-hero{min-height:440px}.cards{grid-template-columns:1fr}.section{padding:44px 0}.resource-list li{grid-template-columns:1fr}.resource-date{margin-top:-8px}.inquiry-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.certificate-form{flex-direction:column;border-radius:12px;padding:8px}.certificate-form input{min-height:48px}.certificate-form button{border-radius:8px}.modal-dialog{width:100%;height:100%;margin:0;border-radius:0}.modal-bar{min-height:54px;padding:8px 12px}.modal-close{width:38px;height:38px}.modal-pdf-wrap{min-height:0}.contact-card{padding:26px}.subtabs{display:grid;grid-template-columns:1fr 1fr}.subtab-btn{min-width:0}.download-row{align-items:flex-start}.page-hero h1{font-size:34px}.feature-list{grid-template-columns:1fr}}

@media(max-width:420px){.topbar-inner{grid-template-columns:72px minmax(108px,1fr) minmax(88px,.9fr);gap:6px}.header-logo img,.header-logo .custom-logo{max-height:36px}.header-center strong{font-size:15px}.header-center span{font-size:7.5px}.mini-contact{font-size:9px}.topbar{padding:8px 0}}

/* v1.4 sticky header + resilient certificate viewer */
.site-header{position:sticky;top:0;z-index:5000;background:#fff;box-shadow:0 1px 0 rgba(0,0,0,.04)}
body.admin-bar .site-header{top:32px}
.modal-pdf-wrap{position:relative}
.modal-loading,.modal-viewer-error{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;z-index:2}
.modal-loading{color:#fff;background:#2f3336;font-weight:600}
.modal-viewer-error{color:#7d1d17;background:#f8eeee;font-weight:600;line-height:1.5}
.modal-viewer-error[hidden],.modal-loading[hidden]{display:none!important}
.modal-frame{position:relative;z-index:1}
@media(max-width:782px){body.admin-bar .site-header{top:46px}}
/* v1.5 canvas PDF viewer: avoids Chrome/Google embedded-PDF blocking */
.modal-pdf-wrap{overflow:auto!important;background:#303437!important;padding:12px;overscroll-behavior:contain}
.modal-pages{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:14px;width:100%;min-height:100%;padding:0 0 16px}
.certificate-canvas{display:block;max-width:100%;height:auto!important;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.28);user-select:none;-webkit-user-select:none}
.modal-viewer-error{color:#fff;background:#303437;font-weight:600}
@media(max-width:640px){.modal-pdf-wrap{padding:6px}.modal-pages{gap:8px;padding-bottom:8px}.certificate-canvas{box-shadow:none}}


/* v1.6 bilingual header language switcher: Chinese default, English optional */
.lab-language-switch{display:flex;align-items:center;justify-content:flex-end;gap:5px;margin-top:5px;font-size:11px;line-height:1;white-space:nowrap}
.lab-lang-btn{appearance:none;border:1px solid #d7e2e7;background:#f5f7f8;color:#4f6775;border-radius:4px;padding:4px 7px;font:inherit;line-height:1.1;cursor:pointer;transition:.18s}
.lab-lang-btn:hover{background:#eaf2f6;color:#174f70;border-color:#bdd1dc}
.lab-lang-btn.active{background:#286a96;color:#fff;border-color:#286a96}
.lab-lang-sep{color:#bdc8ce}.lab-google-translate{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important}
.goog-te-banner-frame.skiptranslate,.goog-te-balloon-frame{display:none!important}body{top:0!important}.goog-logo-link,.goog-te-gadget span{display:none!important}.goog-te-gadget{height:0!important;overflow:hidden!important}
@media(max-width:640px){.lab-language-switch{gap:3px;margin-top:3px;font-size:8.5px}.lab-lang-btn{padding:3px 4px;border-radius:3px}.lab-lang-sep{display:none}}
@media(max-width:420px){.lab-language-switch{font-size:8px}.lab-lang-btn{padding:2px 3px}}


/* v2.0 mobile overflow fix for tabs and inline article pages */
html,body{max-width:100%;overflow-x:hidden}
.standard-inline-article,.inline-page-article,.standard-article-content,.standard-article-title{min-width:0;max-width:100%}
.standard-article-title{overflow-wrap:anywhere;word-break:break-word;hyphens:auto}
.standard-article-content{width:100%;overflow-wrap:anywhere;word-break:break-word}
.standard-article-content pre,.standard-article-content code{max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere}
.standard-article-content iframe,.standard-article-content video,.standard-article-content embed,.standard-article-content object{max-width:100%}
@media(max-width:640px){
  .tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;overflow:visible;padding-bottom:0;width:100%}
  .tab-btn{flex:none;min-width:0;width:100%;max-width:100%;padding:12px 8px;white-space:normal;overflow-wrap:anywhere;word-break:break-word;line-height:1.25}
  .subtabs{width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .subtab-btn{width:100%;max-width:100%;padding:12px 8px;white-space:normal;overflow-wrap:anywhere;word-break:break-word;line-height:1.25}
  .standard-inline-article,.inline-page-article{padding:22px 16px;width:100%;overflow:hidden}
  .standard-article-title{font-size:clamp(27px,8vw,36px);line-height:1.14;margin-bottom:8px}
  .standard-article-content{font-size:16px}
  .resource-list,.resource-list li{max-width:100%;min-width:0}
}
@media(max-width:380px){
  .tabs,.subtabs{grid-template-columns:1fr}
}