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1fr;gap:16px}.prep-grid>div{padding:24px;border:1px solid #e4e7ec;border-radius:17px}.prep-grid h2{margin:5px 0}.prep-grid ul{padding-left:18px;color:#475467}.warning{display:flex;gap:15px;background:#fff7ed!important;border-color:#fed7aa!important}.warning>b{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#f79009;color:#fff}.warning span{flex:1}.warning strong{display:block}.warning p{margin:4px 0;color:#7a2e0e;font-size:12px}.cause-box{margin:20px 0 55px;padding:25px;border-radius:17px;background:#101828;color:#fff}.cause-box h2{margin:5px 0}.cause-box ul{display:flex;flex-wrap:wrap;gap:8px;padding:0;list-style:none}.cause-box li{padding:8px 10px;border-radius:99px;background:#263449;color:#d0d5dd;font-size:11px}.steps-head h2{font-size:38px;margin:7px 0}.steps-head p{color:#667085}.step{display:grid;grid-template-columns:55px 1fr;gap:20px;padding:30px 0;border-top:1px solid #e4e7ec}.step-no{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:#101828;color:#fff;font-size:12px;font-weight:800}.step h2{font-size:23px;margin:4px 0}.step p{color:#475467}.observe{display:flex;gap:12px;margin-top:16px;padding:13px 15px;border-left:3px solid var(--orange);background:#fff8ef;font-size:12px}.observe b{color:#c75400;min-width:max-content}.observe span{color:#667085}.result-box{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:35px}.result-box>div{padding:22px;border-radius:16px}.result-box>div:first-child{background:#ecfdf3;border:1px solid #abefc6}.result-box>div:last-child{background:#fff4ed;border:1px solid #f9dbaf}.result-box span{font-size:10px;font-weight:900}.result-box h3{font-size:15px;line-height:1.55}.author-note{margin-top:20px;padding:23px;background:#f5f7fb;border-radius:16px}.author-note h2{font-size:18px}.author-note p{color:#667085;font-size:12px}.related{background:#f7f8fa}.article-hero{padding:68px 0;background:#101828;color:#fff}.article-hero h1{font-size:48px;line-height:1.18;max-width:900px}.article-hero p{max-width:780px;color:#c5cbd4;font-size:17px}.editorial{max-width:820px;padding-top:70px;padding-bottom:80px}.article-lead{padding:25px;border-left:4px solid var(--orange);background:#fff8ef}.article-lead b{color:#c75400}.editorial>h2{font-size:32px;margin-top:55px}.editorial>section{display:grid;grid-template-columns:55px 1fr;gap:18px;padding:24px 0;border-top:1px solid #e4e7ec}.editorial>section>span{color:var(--orange);font-weight:900}.editorial h3{font-size:22px;margin:0}.editorial p{color:#475467}.article-checklist{padding:24px;border-radius:16px;background:#101828;color:#fff}.article-checklist ul{color:#d0d5dd}.editorial-note{padding:50px 0;background:#101828;color:#fff}.editorial-note .container{display:grid;grid-template-columns:1fr 1fr;gap:60px}.editorial-note h2{font-size:31px}.editorial-note p{padding:12px 0;border-bottom:1px solid 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#e4e7ec;border-radius:20px}.app-support-grid span{color:var(--orange);font-size:10px;font-weight:900}.app-support-grid h2{font-size:27px}.app-support-grid p{color:#667085}.app-support-grid a{display:inline-block;margin-top:15px;background:#101828;color:#fff;padding:10px 13px;border-radius:9px;font-size:12px;font-weight:800}.prose{max-width:820px}.prose h2{font-size:29px;margin-top:42px}.prose p{color:#475467;font-size:16px}.site-footer{padding:58px 0 20px;background:#101828;color:#fff}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:48px}.footer-grid p{max-width:400px;color:#98a2b3}.footer-grid h3{font-size:12px;color:#d0d5dd}.footer-grid>div:first-child{min-width:0}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:10px}.footer-grid>div:not(:first-child) a{font-size:12px;color:#98a2b3}.site-footer .footer-brand{max-width:none;width:100%;align-items:flex-start}.site-footer .footer-brand span{min-width:0;flex:1 1 auto}.site-footer .footer-brand strong,.site-footer .footer-brand small{white-space:normal;overflow:visible;text-overflow:clip}.site-footer .footer-brand strong{font-size:18px;line-height:1.2}.site-footer .footer-brand small{margin-top:6px;letter-spacing:.04em;line-height:1.35}.footer-bottom{display:flex;justify-content:space-between;margin-top:42px;padding-top:17px;border-top:1px solid #344054;color:#667085;font-size:10px}
@media(max-width:980px){.main-nav{display:none;position:absolute;top:74px;left:20px;right:20px;background:#fff;border:1px solid #e4e7ec;border-radius:15px;padding:10px;box-shadow:var(--shadow)}.main-nav.open{display:flex;flex-direction:column}.menu-toggle{display:block;margin-left:auto}.header-search{display:none}.hero-grid{grid-template-columns:1fr;padding:75px 0}.hero-diagnostic{max-width:680px}.type-grid{grid-template-columns:repeat(2,1fr)}.guide-grid,.article-grid{grid-template-columns:repeat(2,1fr)}.process-grid{grid-template-columns:1fr}.guide-layout{grid-template-columns:1fr}.guide-layout aside{display:none}.repair-toolbar .container{align-items:flex-start;flex-direction:column}.type-section-head{grid-template-columns:65px 1fr}.type-section-head>a{grid-column:2}.app-support-grid{grid-template-columns:1fr}.safety-cards{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.container{width:min(100% - 28px,var(--container))}.header-inner{height:66px}.brand small{display:none}.hero-grid{padding:58px 0}.hero h1{font-size:42px}.hero-search{flex-wrap:wrap}.hero-search button{width:100%}.diag-grid{grid-template-columns:1fr}.stats .container{grid-template-columns:1fr 1fr;gap:18px}.stats div:nth-child(2){border:0}.section{padding:62px 0}.section-head{align-items:flex-start;flex-direction:column}.section-head h2{font-size:32px}.type-grid,.guide-grid,.article-grid{grid-template-columns:1fr}.app-mini .container{align-items:flex-start;flex-direction:column}.page-hero h1{font-size:38px}.repair-toolbar{top:66px}.type-jump{top:66px}.type-section-head{grid-template-columns:55px 1fr}.large-type-icon{width:52px;height:52px}.guide-title{grid-template-columns:1fr}.guide-title h1{font-size:36px}.hero-icon{display:none}.guide-stats{gap:18px;flex-wrap:wrap}.guide-layout{padding-top:45px}.prep-grid,.result-box{grid-template-columns:1fr}.visual-line span{padding:9px;font-size:10px}.visual-line i{min-width:10px}.step{grid-template-columns:45px 1fr}.step-no{width:40px;height:40px}.editorial-note .container{grid-template-columns:1fr}.tool-list article{grid-template-columns:1fr}.tool-list article>div{height:140px}.safety-cards{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}}

/* tutorial image integration v1 */
.tutorial-overview{margin:30px 0 34px;border:1px solid #d8dee9;border-radius:20px;overflow:hidden;background:#fff;box-shadow:0 18px 45px rgba(16,24,40,.08)}
.tutorial-overview a{display:block;background:#eef2f7}
.tutorial-overview img{display:block;width:100%;height:auto}
.tutorial-overview figcaption{padding:15px 18px;color:#475467;font-size:13px;border-top:1px solid #e4e7ec;background:#fff}
.tutorial-overview figcaption strong{display:block;color:#101828;font-size:14px;margin-bottom:3px}
.image-safety-note{display:flex;gap:13px;margin:-15px 0 34px;padding:16px 18px;border:1px solid #f7c97f;border-radius:14px;background:#fff8e8;color:#7a2e0e}
.image-safety-note b{display:grid;place-items:center;flex:0 0 28px;height:28px;border-radius:50%;background:#f79009;color:#fff}
.image-safety-note strong{display:block;color:#9a3412;margin-bottom:2px}
.step-media{margin:18px 0 2px}
.step-media-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.step-media-grid.single{grid-template-columns:minmax(0,1fr)}
.step-figure{margin:0;border:1px solid #dfe4ec;border-radius:14px;overflow:hidden;background:#f8fafc}
.step-figure a{display:block;background:#eef2f6}
.step-figure img{display:block;width:100%;height:auto}
.step-figure figcaption{padding:11px 13px;color:#667085;font-size:12px;line-height:1.55;background:#fff;border-top:1px solid #e4e7ec}
.step-figure figcaption strong{display:block;color:#344054;font-size:13px;margin-bottom:2px}
@media(max-width:700px){.tutorial-overview{margin:22px 0 28px;border-radius:14px}.tutorial-overview figcaption{padding:13px 14px}.step-media-grid{grid-template-columns:1fr}.image-safety-note{margin-top:-12px}}

/* Standardized per-step tutorial cards */
.step-guide-card{margin:18px 0 20px;border:1px solid #cfd9e8;border-radius:18px;overflow:hidden;background:#fff;box-shadow:0 12px 28px rgba(16,24,40,.07)}
.step-guide-card a{display:block;background:#f2f5f9}
.step-guide-card img{display:block;width:100%;height:auto}
.step-guide-card figcaption{padding:13px 16px;color:#475467;font-size:13px;border-top:1px solid #e4e7ec}
.step-guide-card figcaption strong{display:block;color:#101828;font-size:14px;margin-bottom:3px}
@media(max-width:700px){.step-guide-card{border-radius:13px;margin:15px 0 18px}.step-guide-card figcaption{padding:11px 13px}}


/* ===== Site repair: logo, multilingual shell, and no-wrap header ===== */
.brand-logo-img{display:block;width:50px;height:50px;object-fit:cover;border-radius:15px;box-shadow:0 5px 16px rgba(16,24,40,.18);flex:0 0 auto}
.footer-brand .brand-logo-img{width:54px;height:54px;border-radius:17px}
.header-inner{gap:12px}
.brand{flex:0 0 auto;min-width:0;max-width:250px}
.brand span{min-width:0}
.brand strong,.brand small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.main-nav{display:flex;flex:1 1 auto;justify-content:center;gap:0;margin-left:0;min-width:0;white-space:nowrap;flex-wrap:nowrap}
.nav-link{white-space:nowrap;padding:9px 8px;font-size:12.5px}
.header-search{white-space:nowrap;flex:0 0 auto;padding:10px 12px}
.language-control{position:relative;flex:0 0 auto}
.language-control select{appearance:auto;width:104px;padding:9px 7px;border:1px solid #d0d5dd;border-radius:10px;background:#fff;color:#344054;font:600 12px/1.2 inherit;cursor:pointer}
#google_translate_element{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.goog-te-banner-frame,.goog-te-banner-frame.skiptranslate,.goog-te-gadget-icon,.goog-te-menu-value span{display:none!important}
body{top:0!important}
.skiptranslate iframe{visibility:hidden!important}

.translation-fallback{width:min(var(--container),calc(100% - 40px));margin:14px auto;padding:11px 14px;border:1px solid #fedf89;border-radius:11px;background:#fffaeb;color:#93370d;font-size:12px}
.translated-image-notice{margin:20px 0;padding:15px 17px;border:1px solid #b2ddff;border-radius:13px;background:#eff8ff;color:#175cd3;font-size:13px}
html.lang-en .tutorial-overview,html.lang-en .step-guide-card,html.lang-en .step-media,html.lang-zh-hant .tutorial-overview,html.lang-zh-hant .step-guide-card,html.lang-zh-hant .step-media{display:none!important}

@media(max-width:1220px){
 .header-inner{gap:8px}.brand{max-width:205px}.brand small{display:none}.brand strong{font-size:13px}.nav-link{padding:8px 6px;font-size:11.5px}.language-control select{width:92px;padding:8px 5px}.header-search{padding:9px 10px;font-size:12px}
}
@media(max-width:1080px){
 .header-inner{position:relative}.main-nav{display:none;position:absolute;top:74px;left:20px;right:20px;background:#fff;border:1px solid #e4e7ec;border-radius:15px;padding:10px;box-shadow:var(--shadow);white-space:normal;z-index:80}.main-nav.open{display:flex;flex-direction:column;align-items:stretch}.nav-link{font-size:13px;padding:10px 12px}.menu-toggle{display:block;margin-left:auto}.language-control{margin-left:0}.header-search{display:none}
}
@media(max-width:680px){
 .brand-logo-img{width:42px;height:42px;border-radius:13px}.brand{max-width:190px}.brand strong{font-size:12px}.language-control select{width:86px}.main-nav{top:66px;left:14px;right:14px}
}
.translation-fallback,.translated-image-notice,#google_translate_element{display:none!important}
.language-select{flex:0 0 auto;width:112px;padding:8px 9px;border:1px solid #d0d5dd;border-radius:9px;background:#fff;color:#344054;font:600 12px/1.2 inherit}
.header-inner{display:flex;gap:8px}
.brand{max-width:210px}
.main-nav{flex-wrap:nowrap!important;white-space:nowrap!important;gap:0!important}
.nav-link{white-space:nowrap!important;padding:8px 7px!important;font-size:12px!important}
.header-search{white-space:nowrap}
@media(max-width:1120px){.main-nav{display:none!important;position:absolute;top:74px;left:20px;right:20px;background:#fff;border:1px solid #e4e7ec;border-radius:15px;padding:10px;box-shadow:var(--shadow);z-index:80;white-space:normal!important}.main-nav.open{display:flex!important;flex-direction:column}.menu-toggle{display:block;margin-left:auto}.header-search{display:none}.language-select{width:100px}}
@media(max-width:680px){.language-select{width:90px}}

/* Avoid mixed Simplified-Chinese labels in Traditional-Chinese pages */
html[lang="zh-Hant"] .tutorial-overview,html[lang="zh-Hant"] .step-guide-card,html[lang="zh-Hant"] .step-media{display:none!important}
.traditional-image-note{margin:18px 0;padding:13px 15px;border:1px solid #b2ddff;border-radius:12px;background:#eff8ff;color:#175cd3;font-size:13px}

#language-templates{display:none!important}.language-select{min-width:112px;white-space:nowrap}.main-nav,.main-nav .nav-link{white-space:nowrap}.header-inner{flex-wrap:nowrap}.main-nav{min-width:0}
@media(max-width:1120px){.main-nav{gap:8px}.nav-link{padding-left:6px!important;padding-right:6px!important;font-size:.82rem}.brand small{display:none}.brand-logo-img{width:38px;height:38px}.header-search{padding-left:12px!important;padding-right:12px!important}.language-select{min-width:96px}}
@media(max-width:900px){.header-inner{flex-wrap:wrap}.main-nav.open{display:flex!important;width:100%;flex-wrap:wrap;white-space:normal}.main-nav.open .nav-link{white-space:normal}}


/* English tutorial image integration */
.english-overview{margin:22px 0 28px}.english-overview img{width:100%;height:auto;display:block}.english-step-card{margin:14px 0 16px}.english-step-card img{width:100%;height:auto;display:block;max-height:520px;object-fit:contain;background:#f8fafc}.english-overview figcaption,.english-step-card figcaption{font-size:.9rem;color:#64748b;padding-top:8px}.english-overview figcaption strong,.english-step-card figcaption strong{color:#1e293b;margin-right:5px}

/* Footer brand must remain complete at every viewport; header brand rules must not hide it. */
.site-footer .footer-brand small{display:block!important}
@media(max-width:1120px){
  .site-footer .footer-brand{max-width:none;width:100%}
  .site-footer .footer-brand strong{font-size:17px}
  .site-footer .footer-brand small{font-size:9px;line-height:1.4}
}
@media(max-width:680px){
  .site-footer .footer-brand{align-items:center}
  .site-footer .footer-brand strong{font-size:17px}
  .site-footer .footer-brand small{font-size:10px;line-height:1.45}
}