:root{
  --ink:#111820;--ink-2:#26323c;--muted:#66727d;--paper:#f4f2ed;--white:#fff;--line:#d7d8d5;
  --blue:#0c5fa8;--blue-dark:#0b2942;--teal:#1d7168;--sand:#d7c6b2;--header-h:76px;
  --shell:min(1280px,calc(100% - 72px));--shadow:0 24px 70px rgba(17,24,32,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body.nav-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{color:inherit}
.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--ink);color:#fff;padding:12px 16px}
.skip-link:focus{top:16px}
.site-header{height:var(--header-h);background:rgba(255,255,255,.96);border-bottom:1px solid rgba(17,24,32,.09);position:relative;z-index:50}
.nav-shell{width:min(1500px,calc(100% - 64px));height:100%;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:36px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:850;font-size:20px;letter-spacing:-.025em}
.brand-mark{width:27px;height:31px;display:inline-block;background:url("https://img.kaelith.tw/assets/kaelith-logo-mark.svg") center/contain no-repeat;flex:0 0 auto}
.primary-nav{display:flex;align-items:center;gap:32px;font-size:14px;font-weight:750}
.primary-nav>a{padding:27px 0 24px;border-bottom:3px solid transparent}
.primary-nav>a:hover,.primary-nav>a[aria-current="page"]{color:var(--blue);border-bottom-color:var(--blue)}
.primary-nav .nav-contact{padding:13px 18px;border:1px solid #c9d0d6;background:#fff}
.primary-nav .nav-contact:hover{color:#fff;background:var(--ink);border-color:var(--ink)}
.nav-toggle{display:none;border:0;background:none;width:46px;height:46px;padding:10px;position:relative}
.nav-toggle>span{display:block;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
.nav-toggle>b{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.section-shell{width:var(--shell);margin-inline:auto}
.eyebrow{display:inline-block;color:var(--blue);font:800 11px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.18em;text-transform:uppercase}
.eyebrow.light{color:#b9dbf6}
.button{min-height:50px;display:inline-flex;align-items:center;justify-content:center;padding:0 20px;border:1px solid transparent;font-weight:800;font-size:14px;transition:transform .2s,background .2s,color .2s,border-color .2s}
.button:hover{transform:translateY(-2px)}
.button.primary{background:#fff;color:var(--ink)}
.button.dark{background:var(--ink);color:#fff}
.button.ghost-light{color:#fff;border-color:rgba(255,255,255,.46)}
.text-link{color:var(--blue);font-weight:800}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-visible,.no-js .reveal{opacity:1;transform:none}

/* responsive CSS backgrounds */
.home-hero{min-height:670px;position:relative;display:flex;align-items:center;background-color:#262b2f;background-image:url("https://img.kaelith.tw/assets/hero-bg-960.webp");background-size:cover;background-position:center}
.home-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,19,24,.9) 0%,rgba(13,19,24,.67) 43%,rgba(13,19,24,.12) 78%)}
.home-hero-content{position:relative;z-index:2;width:min(760px,calc(100% - 12vw));margin-left:max(7vw,calc((100% - 1320px)/2));padding:80px 0;color:#fff}
.home-hero h1{max-width:720px;margin:22px 0 18px;font-size:clamp(54px,6.2vw,96px);line-height:.98;letter-spacing:-.065em}
.home-hero p{max-width:620px;margin:0;color:#edf3f7;font-size:20px;line-height:1.75}
.statement{display:grid;grid-template-columns:70px minmax(0,1.6fr) minmax(250px,.7fr);gap:42px;padding:90px 0;border-bottom:1px solid var(--line)}
.statement>span{color:var(--blue);font:800 12px ui-monospace,monospace}
.statement h2{margin:0;font-size:clamp(30px,3.6vw,54px);line-height:1.14;letter-spacing:-.045em}
.statement p{margin:4px 0 0;color:var(--muted);font-size:16px;line-height:1.85}
.section-head{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(300px,.8fr);align-items:end;gap:50px;margin-bottom:38px}
.section-head .eyebrow{grid-column:1/-1}
.section-head h2{margin:10px 0 0;font-size:clamp(34px,4vw,60px);line-height:1.06;letter-spacing:-.05em}
.editorial-panels{padding:100px 0 120px}
.editorial-panel{display:grid;grid-template-columns:.82fr 1.18fr;min-height:430px;margin-top:26px;background:#fff;border:1px solid #d8d9d7;box-shadow:0 16px 48px rgba(17,24,32,.06)}
.editorial-panel.reverse{grid-template-columns:1.18fr .82fr}
.editorial-panel.reverse .panel-copy{order:2}
.editorial-panel.reverse .panel-visual{order:1}
.panel-copy{padding:60px;display:flex;flex-direction:column;justify-content:center}
.panel-copy>span{color:var(--blue);font:800 11px ui-monospace,monospace;letter-spacing:.14em}
.panel-copy h3{margin:18px 0 14px;font-size:clamp(32px,3.5vw,54px);line-height:1.04;letter-spacing:-.05em}
.panel-copy p{margin:0 0 26px;color:var(--muted);font-size:17px;line-height:1.8}
.panel-copy a{width:max-content;color:var(--blue);font-weight:800}
.panel-visual{min-height:430px;background-size:cover;background-position:center}
.project-feature{background:#102b38;color:#fff;padding:86px 0}
.project-feature-grid{display:grid;grid-template-columns:.78fr 1.22fr;align-items:center;gap:70px}
.project-feature-copy h2{margin:18px 0 14px;font-size:clamp(46px,5vw,76px);line-height:1;letter-spacing:-.06em}
.project-feature-copy p{margin:0;max-width:520px;color:#dce8ec;font-size:18px;line-height:1.75}
.project-feature-visual{min-height:420px;background-size:cover;background-position:center;box-shadow:var(--shadow)}
.articles-strip{padding:110px 0}
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.story-card{min-height:420px;padding:30px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;isolation:isolate;background-size:cover;background-position:center;color:#fff;overflow:hidden}
.story-card::before,.feature-story::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,18,24,.04),rgba(10,18,24,.88));z-index:-1}
.story-card span{font:800 11px ui-monospace,monospace;letter-spacing:.14em;color:#cfe7f7}
.story-card h3{margin:13px 0 22px;font-size:31px;line-height:1.08;letter-spacing:-.04em}
.story-card b{font-size:13px}
.section-more{display:inline-block;margin-top:28px;color:var(--blue);font-weight:850}
.contact-band{background:#10171e;color:#fff;padding:78px 0}
.contact-band-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:end}
.contact-band h2{margin:18px 0 0;font-size:clamp(38px,4vw,62px);line-height:1.05;letter-spacing:-.05em}
.contact-band-grid>div:last-child{display:grid;gap:14px}
.contact-band a{padding:17px 0;border-bottom:1px solid rgba(255,255,255,.24);font-weight:800;font-size:17px}

/* Internal page heroes */
.page-hero{min-height:520px;position:relative;display:flex;align-items:flex-end;background-size:cover;background-position:center;overflow:hidden}
.page-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,20,27,.9),rgba(11,20,27,.56) 48%,rgba(11,20,27,.05) 80%)}
.page-hero-inner{position:relative;z-index:2;width:var(--shell);margin:0 auto;padding:92px 0;color:#fff}
.page-hero h1{max-width:780px;margin:18px 0 14px;font-size:clamp(54px,6vw,88px);line-height:.98;letter-spacing:-.065em}
.page-hero p{max-width:610px;margin:0;color:#e6edf1;font-size:18px;line-height:1.75}

/* Projects */
.project-case{display:grid;grid-template-columns:110px .8fr 1.2fr;gap:48px;align-items:center;padding:110px 0}
.project-case-meta{align-self:stretch;padding-top:10px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:12px;color:var(--muted);font-size:12px}
.project-case-meta>span{color:var(--blue);font:800 12px ui-monospace,monospace}
.project-case-copy h2{margin:18px 0 16px;font-size:clamp(40px,4vw,64px);line-height:1.02;letter-spacing:-.055em}
.project-case-copy p{color:var(--muted);font-size:17px;line-height:1.75}
.project-case-visual{min-height:500px;background-size:cover;background-position:center;box-shadow:var(--shadow)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0 30px}
.tag-row span{padding:8px 12px;background:#e4e9ec;font-size:12px;font-weight:750}
.criteria-band{background:#e6eceb;padding:80px 0}
.criteria-grid{display:grid;grid-template-columns:1.1fr repeat(3,1fr);gap:44px}
.criteria-grid h2{margin:0;font-size:38px;letter-spacing:-.04em}
.criteria-grid strong{display:block;margin-bottom:12px;font-size:18px}
.criteria-grid p{margin:0;color:#52615f;line-height:1.7}

/* Articles index */
.article-featured{display:grid;grid-template-columns:1.35fr .825fr .825fr;gap:18px;padding:78px 0 90px}
.feature-story{min-height:430px;padding:34px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;isolation:isolate;background-size:cover;background-position:center;color:#fff}
.feature-story:first-child{min-height:540px}
.feature-story span{font:800 11px ui-monospace,monospace;letter-spacing:.14em;color:#cfe7f7}
.feature-story h2{margin:14px 0 10px;font-size:clamp(30px,3vw,46px);line-height:1.02;letter-spacing:-.045em}
.feature-story p{margin:0 0 20px;color:#edf3f6;line-height:1.65}
.feature-story b{font-size:13px}
.article-group{padding:70px 0;border-top:1px solid var(--line)}
.article-group-title{display:grid;grid-template-columns:80px 1fr;align-items:end;margin-bottom:32px}
.article-group-title>span{color:var(--blue);font:800 12px ui-monospace,monospace}
.article-group-title h2{margin:0;font-size:clamp(36px,4vw,58px);letter-spacing:-.05em}
.article-list-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.article-tile{display:grid;grid-template-columns:220px 1fr;background:#fff;border:1px solid #d9dbd9;min-height:220px;transition:transform .2s,box-shadow .2s}
.article-tile:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(17,24,32,.08)}
.article-tile-visual{background-size:cover;background-position:center}
.article-tile>div:last-child{padding:28px}
.article-tile span{color:var(--blue);font-size:11px;font-weight:800}
.article-tile h3{margin:10px 0 9px;font-size:27px;line-height:1.08;letter-spacing:-.035em}
.article-tile p{margin:0 0 18px;color:var(--muted);line-height:1.65;font-size:14px}
.article-tile b{font-size:12px}

/* Article detail */
.article-banner{min-height:620px;position:relative;display:flex;align-items:flex-end;background-size:cover;background-position:center}
.article-banner-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,17,24,.94),rgba(8,17,24,.66) 49%,rgba(8,17,24,.08) 80%)}
.article-banner-inner{position:relative;z-index:2;width:var(--shell);margin:auto;padding:76px 0;color:#fff}
.article-breadcrumb{display:flex;gap:10px;align-items:center;margin-bottom:60px;color:#c7d2d9;font-size:13px}
.article-banner h1{max-width:900px;margin:18px 0 18px;font-size:clamp(48px,5.6vw,82px);line-height:.98;letter-spacing:-.065em}
.article-banner p{max-width:700px;margin:0;color:#e3eaee;font-size:19px;line-height:1.72}
.article-meta{display:flex;gap:22px;margin-top:28px;color:#c6d2d9;font:700 12px ui-monospace,monospace}
.article-body{display:grid;grid-template-columns:260px minmax(0,820px);gap:80px;justify-content:center;padding:90px 0 110px}
.article-nav{position:sticky;top:24px;align-self:start;padding:22px 0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}
.article-nav strong{font-size:13px}
.article-nav nav{display:grid;margin:16px 0 22px}
.article-nav nav a{padding:10px 0;color:var(--muted);font-size:13px;line-height:1.45;border-bottom:1px solid #e1e2e0}
.article-nav>a{color:var(--blue);font-size:13px;font-weight:800}
.article-section{display:grid;grid-template-columns:64px 1fr;gap:24px;padding:0 0 56px;margin-bottom:56px;border-bottom:1px solid var(--line)}
.article-section>span{color:var(--blue);font:800 12px ui-monospace,monospace;padding-top:9px}
.article-section h2{margin:0 0 20px;font-size:clamp(30px,3.2vw,46px);line-height:1.08;letter-spacing:-.045em}
.article-section p,.article-section li{color:#35424c;font-size:17px;line-height:1.9}
.article-section p{margin:0 0 18px}
.article-section ul,.article-section ol{margin:0;padding-left:1.3em}
.article-section li+li{margin-top:9px}
.pdf-download{min-height:310px;padding:36px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px;position:relative;isolation:isolate;color:#fff;background-size:cover;background-position:center;overflow:hidden}
.pdf-download::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(9,18,24,.92),rgba(9,18,24,.62),rgba(9,18,24,.22))}
.pdf-download span{font:800 11px ui-monospace,monospace;letter-spacing:.14em;color:#cfe7f7}
.pdf-download h2{margin:12px 0 8px;font-size:38px;letter-spacing:-.045em}
.pdf-download p{margin:0;color:#e3ebef}
.pdf-download b{white-space:nowrap;font-size:14px}
.article-next{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:100px}
.article-next a{padding:34px;display:flex;flex-direction:column;gap:10px}
.article-next a+a{border-left:1px solid var(--line);text-align:right}
.article-next span{color:var(--blue);font-size:11px;font-weight:800}
.article-next strong{font-size:24px}

/* Information pages */
.split-story{display:grid;grid-template-columns:.75fr .8fr 1.15fr;gap:50px;align-items:center;padding:100px 0}
.split-story h2{margin:15px 0 0;font-size:clamp(38px,4vw,62px);line-height:1.04;letter-spacing:-.055em}
.split-story p{color:var(--muted);font-size:17px;line-height:1.85}
.split-story-visual{min-height:430px;background-size:cover;background-position:center;box-shadow:var(--shadow)}
.values-band{background:#14212b;color:#fff;padding:70px 0}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr)}
.value-grid>div{padding:30px 44px;border-left:1px solid rgba(255,255,255,.18)}
.value-grid>div:first-child{border-left:0}
.value-grid span{color:#8dc6ea;font:800 12px ui-monospace,monospace}
.value-grid h3{margin:15px 0 0;font-size:29px;letter-spacing:-.035em}
.compact-cta{padding:80px 0;display:flex;align-items:center;justify-content:space-between;gap:40px}
.compact-cta h1,.compact-cta h2{margin:0;font-size:clamp(36px,4vw,58px);letter-spacing:-.05em}
.policy-summary,.security-grid,.report-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);margin-top:90px}
.policy-summary>div,.security-grid>article,.report-flow>div{background:#fff;padding:42px;min-height:260px}
.policy-summary span,.security-grid span,.report-flow span{color:var(--blue);font:800 12px ui-monospace,monospace}
.policy-summary h2,.security-grid h2,.report-flow h2{margin:18px 0 13px;font-size:31px;letter-spacing:-.04em}
.policy-summary p,.security-grid p,.report-flow p{margin:0;color:var(--muted);line-height:1.75}
.security-grid{grid-template-columns:repeat(4,1fr)}
.policy-table{padding:75px 0 100px}
.policy-table h2{font-size:42px;letter-spacing:-.04em}
.policy-table>div{display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;padding:20px 0;border-top:1px solid var(--line)}
.policy-table>div:last-child{border-bottom:1px solid var(--line)}
.policy-table span{color:var(--muted)}
.report-details{display:grid;grid-template-columns:repeat(3,1fr);gap:34px;padding:80px 0 110px}
.report-details>div{border-top:3px solid var(--ink);padding-top:24px}
.report-details h2{font-size:30px;margin:0 0 18px}
.report-details li,.report-details p{color:var(--muted);line-height:1.8}
.report-details a{color:var(--blue);font-weight:800}
.reliability-map{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:90px 0 70px}
.reliability-map>div{background:#fff;border:1px solid var(--line);padding:38px;min-height:240px}
.reliability-map span{display:block;color:var(--blue);font-size:11px;font-weight:800;margin-bottom:20px}
.reliability-map strong{font-size:25px}
.reliability-map p{color:var(--muted);line-height:1.75}
.maintenance-cycle{padding:20px 0 100px}
.maintenance-cycle h2{font-size:42px;letter-spacing:-.04em}
.maintenance-cycle ol{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.maintenance-cycle li{display:grid;grid-template-columns:90px 1fr;padding:24px 0;border-bottom:1px solid var(--line);font-size:20px;font-weight:750}
.maintenance-cycle li span{color:var(--blue);font:800 12px ui-monospace,monospace}
.release-list{padding:95px 0 110px}
.release-list article{display:grid;grid-template-columns:180px 1fr;gap:50px;padding:44px 0;border-top:1px solid var(--line)}
.release-list article:last-child{border-bottom:1px solid var(--line)}
.release-list time{color:var(--muted);font:700 13px ui-monospace,monospace}
.release-list span{color:var(--blue);font:800 12px ui-monospace,monospace}
.release-list h2{margin:12px 0 18px;font-size:38px;letter-spacing:-.04em}
.release-list li{color:var(--muted);line-height:1.8}
.human-sitemap{display:grid;grid-template-columns:repeat(4,1fr);gap:70px;padding:90px 0 120px}
.human-sitemap h2{font-size:21px;margin:0 0 22px;padding-bottom:17px;border-bottom:1px solid var(--line)}
.human-sitemap>div{display:flex;flex-direction:column}
.human-sitemap a{padding:8px 0;color:#1c67b0;font-size:16px}
.human-sitemap a:hover{text-decoration:underline}
.offline-screen{min-height:calc(100vh - var(--header-h));display:flex;align-items:center;background-size:cover;background-position:center;position:relative;color:#fff}
.offline-screen::before{content:"";position:absolute;inset:0;background:rgba(10,20,27,.75)}
.offline-screen>div{position:relative;z-index:1;width:var(--shell);margin:auto}
.offline-screen h1{max-width:760px;font-size:clamp(52px,6vw,86px);line-height:1;letter-spacing:-.06em}
.offline-screen p{font-size:18px;color:#d9e3e8}

/* footer */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:70px 0 24px}
.footer-grid{width:var(--shell);margin:auto;display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:52px}
.footer-grid>div{display:flex;flex-direction:column;align-items:flex-start}
.footer-grid strong{font-size:13px;margin-bottom:17px}
.footer-grid a:not(.brand){color:var(--muted);font-size:13px;padding:6px 0}
.footer-grid a:hover{color:var(--blue)}
.footer-brand p{max-width:260px;color:var(--muted);font-size:13px;line-height:1.7}
.footer-bottom{width:var(--shell);margin:50px auto 0;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#7c858d;font-size:12px}

/* visual class mapping */
.visual-article-2fa-recovery-codes{background-image:url("https://img.kaelith.tw/assets/v231/article-2fa-recovery-codes-960.webp")}
.visual-article-dns-basics{background-image:url("https://img.kaelith.tw/assets/v231/article-dns-basics-960.webp")}
.visual-article-password-manager{background-image:url("https://img.kaelith.tw/assets/v231/article-password-manager-960.webp")}
.visual-article-phishing{background-image:url("https://img.kaelith.tw/assets/v231/article-phishing-960.webp")}
.visual-article-public-wifi{background-image:url("https://img.kaelith.tw/assets/v231/article-public-wifi-960.webp")}
.visual-article-security-incident-reporting{background-image:url("https://img.kaelith.tw/assets/v231/article-security-incident-reporting-960.webp")}
.visual-article-self-xss{background-image:url("https://img.kaelith.tw/assets/v231/article-self-xss-960.webp")}
.visual-article-social-engineering{background-image:url("https://img.kaelith.tw/assets/v231/article-social-engineering-960.webp")}
.visual-article-ssl-certificate{background-image:url("https://img.kaelith.tw/assets/v231/article-ssl-certificate-960.webp")}
.visual-article-two-factor-authentication{background-image:url("https://img.kaelith.tw/assets/v231/article-two-factor-authentication-960.webp")}
.visual-article-website-backup{background-image:url("https://img.kaelith.tw/assets/v231/article-website-backup-960.webp")}
.visual-article-website-maintenance-checklist{background-image:url("https://img.kaelith.tw/assets/v231/article-website-maintenance-checklist-960.webp")}
.visual-article-website-malware{background-image:url("https://img.kaelith.tw/assets/v231/article-website-malware-960.webp")}
.visual-expertise-hosting{background-image:url("https://img.kaelith.tw/assets/v231/expertise-hosting-960.webp")}
.visual-expertise-security{background-image:url("https://img.kaelith.tw/assets/v231/expertise-security-960.webp")}
.visual-expertise-web{background-image:url("https://img.kaelith.tw/assets/v231/expertise-web-960.webp")}
.visual-page-about{background-image:url("https://img.kaelith.tw/assets/v231/page-about-960.webp")}
.visual-page-articles{background-image:url("https://img.kaelith.tw/assets/v231/page-articles-960.webp")}
.visual-page-changelog{background-image:url("https://img.kaelith.tw/assets/v231/page-changelog-960.webp")}
.visual-page-privacy{background-image:url("https://img.kaelith.tw/assets/v231/page-privacy-960.webp")}
.visual-page-projects{background-image:url("https://img.kaelith.tw/assets/v231/page-projects-960.webp")}
.visual-page-reliability{background-image:url("https://img.kaelith.tw/assets/v231/page-reliability-960.webp")}
.visual-page-security{background-image:url("https://img.kaelith.tw/assets/v231/page-security-960.webp")}
.visual-page-security-report{background-image:url("https://img.kaelith.tw/assets/v231/page-security-report-960.webp")}
.visual-page-sitemap{background-image:url("https://img.kaelith.tw/assets/v231/page-sitemap-960.webp")}
.visual-project-medical-navigation{background-image:url("https://img.kaelith.tw/assets/v231/project-medical-navigation-960.webp")}

@media (min-width:1000px){
.visual-article-2fa-recovery-codes{background-image:url("https://img.kaelith.tw/assets/v231/article-2fa-recovery-codes-1600.webp")}
.visual-article-dns-basics{background-image:url("https://img.kaelith.tw/assets/v231/article-dns-basics-1600.webp")}
.visual-article-password-manager{background-image:url("https://img.kaelith.tw/assets/v231/article-password-manager-1600.webp")}
.visual-article-phishing{background-image:url("https://img.kaelith.tw/assets/v231/article-phishing-1600.webp")}
.visual-article-public-wifi{background-image:url("https://img.kaelith.tw/assets/v231/article-public-wifi-1600.webp")}
.visual-article-security-incident-reporting{background-image:url("https://img.kaelith.tw/assets/v231/article-security-incident-reporting-1600.webp")}
.visual-article-self-xss{background-image:url("https://img.kaelith.tw/assets/v231/article-self-xss-1600.webp")}
.visual-article-social-engineering{background-image:url("https://img.kaelith.tw/assets/v231/article-social-engineering-1600.webp")}
.visual-article-ssl-certificate{background-image:url("https://img.kaelith.tw/assets/v231/article-ssl-certificate-1600.webp")}
.visual-article-two-factor-authentication{background-image:url("https://img.kaelith.tw/assets/v231/article-two-factor-authentication-1600.webp")}
.visual-article-website-backup{background-image:url("https://img.kaelith.tw/assets/v231/article-website-backup-1600.webp")}
.visual-article-website-maintenance-checklist{background-image:url("https://img.kaelith.tw/assets/v231/article-website-maintenance-checklist-1600.webp")}
.visual-article-website-malware{background-image:url("https://img.kaelith.tw/assets/v231/article-website-malware-1600.webp")}
.visual-expertise-hosting{background-image:url("https://img.kaelith.tw/assets/v231/expertise-hosting-1600.webp")}
.visual-expertise-security{background-image:url("https://img.kaelith.tw/assets/v231/expertise-security-1600.webp")}
.visual-expertise-web{background-image:url("https://img.kaelith.tw/assets/v231/expertise-web-1600.webp")}
.visual-page-about{background-image:url("https://img.kaelith.tw/assets/v231/page-about-1600.webp")}
.visual-page-articles{background-image:url("https://img.kaelith.tw/assets/v231/page-articles-1600.webp")}
.visual-page-changelog{background-image:url("https://img.kaelith.tw/assets/v231/page-changelog-1600.webp")}
.visual-page-privacy{background-image:url("https://img.kaelith.tw/assets/v231/page-privacy-1600.webp")}
.visual-page-projects{background-image:url("https://img.kaelith.tw/assets/v231/page-projects-1600.webp")}
.visual-page-reliability{background-image:url("https://img.kaelith.tw/assets/v231/page-reliability-1600.webp")}
.visual-page-security{background-image:url("https://img.kaelith.tw/assets/v231/page-security-1600.webp")}
.visual-page-security-report{background-image:url("https://img.kaelith.tw/assets/v231/page-security-report-1600.webp")}
.visual-page-sitemap{background-image:url("https://img.kaelith.tw/assets/v231/page-sitemap-1600.webp")}
.visual-project-medical-navigation{background-image:url("https://img.kaelith.tw/assets/v231/project-medical-navigation-1600.webp")}
}
@media (min-width:1200px){.home-hero{background-image:url("https://img.kaelith.tw/assets/hero-bg-1440.webp")}}
@media (max-width:1100px){
  :root{--shell:min(100% - 44px,980px)}
  .nav-shell{width:calc(100% - 36px)}
  .primary-nav{gap:20px}
  .statement{grid-template-columns:50px 1fr}.statement p{grid-column:2}
  .editorial-panel,.editorial-panel.reverse{grid-template-columns:1fr 1fr}
  .panel-copy{padding:42px}
  .project-feature-grid{grid-template-columns:1fr 1.1fr;gap:36px}
  .article-featured{grid-template-columns:1fr 1fr}.feature-story:first-child{grid-column:1/-1}
  .article-tile{grid-template-columns:170px 1fr}
  .project-case{grid-template-columns:70px 1fr}.project-case-visual{grid-column:2}
  .split-story{grid-template-columns:1fr 1fr}.split-story-visual{grid-column:1/-1;min-height:360px}
  .security-grid{grid-template-columns:repeat(2,1fr)}
  .human-sitemap{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}
}
@media (max-width:900px){
  :root{--header-h:68px;--shell:calc(100% - 36px)}
  .nav-shell{width:calc(100% - 28px)}
  .nav-toggle{display:block}
  .primary-nav{position:fixed;inset:var(--header-h) 0 0;background:#fff;display:flex;flex-direction:column;align-items:stretch;gap:0;padding:22px 18px 40px;transform:translateX(100%);transition:transform .25s ease;overflow:auto}
  .primary-nav.is-open{transform:none}
  .primary-nav>a{padding:18px 6px;border-bottom:1px solid var(--line);font-size:18px}
  .primary-nav .nav-contact{margin-top:20px;text-align:center}
  .home-hero{min-height:620px;background-position:58% center}
  .home-hero-content{width:calc(100% - 36px);margin:auto;padding:70px 0}
  .home-hero h1{font-size:clamp(46px,11vw,72px)}
  .statement{padding:65px 0;grid-template-columns:1fr;gap:18px}.statement p{grid-column:auto}
  .section-head{grid-template-columns:1fr}
  .editorial-panels{padding:75px 0}
  .editorial-panel,.editorial-panel.reverse{grid-template-columns:1fr;margin-top:18px}
  .editorial-panel.reverse .panel-copy,.editorial-panel.reverse .panel-visual{order:initial}
  .panel-visual{min-height:300px;order:-1!important}
  .project-feature-grid{grid-template-columns:1fr}.project-feature-visual{min-height:330px;order:-1}
  .story-grid{grid-template-columns:1fr}.story-card{min-height:330px}
  .contact-band-grid{grid-template-columns:1fr;gap:40px}
  .page-hero{min-height:460px}.page-hero-inner{padding:70px 0}.page-hero h1{font-size:clamp(48px,10vw,72px)}
  .project-case{grid-template-columns:1fr;gap:28px;padding:70px 0}.project-case-meta{border-right:0;border-bottom:1px solid var(--line);padding-bottom:16px}.project-case-visual{grid-column:auto;min-height:360px;order:-1}
  .criteria-grid{grid-template-columns:1fr 1fr}.criteria-grid h2{grid-column:1/-1}
  .article-featured{grid-template-columns:1fr;padding:55px 0}.feature-story:first-child{grid-column:auto;min-height:430px}.feature-story{min-height:360px}
  .article-list-grid{grid-template-columns:1fr}
  .article-banner{min-height:560px}.article-banner-inner{padding:50px 0}.article-breadcrumb{margin-bottom:42px}.article-banner h1{font-size:clamp(43px,9vw,68px)}
  .article-body{grid-template-columns:1fr;gap:40px;padding:60px 0}.article-nav{position:static}.article-nav nav{grid-template-columns:1fr 1fr;column-gap:18px}
  .article-next{grid-template-columns:1fr}.article-next a+a{border-left:0;border-top:1px solid var(--line);text-align:left}
  .split-story{grid-template-columns:1fr}.split-story-visual{grid-column:auto;order:-1}
  .value-grid{grid-template-columns:1fr}.value-grid>div{border-left:0;border-top:1px solid rgba(255,255,255,.18)}
  .policy-summary,.report-flow,.reliability-map{grid-template-columns:1fr}
  .report-details{grid-template-columns:1fr}
  .compact-cta{align-items:flex-start;flex-direction:column}
  .human-sitemap{gap:50px 36px}
}
@media (max-width:640px){
  :root{--shell:calc(100% - 28px)}
  .home-hero{min-height:590px;background-image:url("https://img.kaelith.tw/assets/hero-bg-640.webp");background-position:60% center}
  .home-hero-overlay{background:linear-gradient(90deg,rgba(13,19,24,.91),rgba(13,19,24,.62) 70%,rgba(13,19,24,.3))}
  .home-hero h1{font-size:46px}.home-hero p{font-size:17px}
  .button{width:100%}.hero-actions{flex-direction:column}
  .statement h2{font-size:34px}
  .editorial-panels,.articles-strip{padding:60px 0}
  .panel-copy{padding:30px}.panel-copy h3{font-size:36px}.panel-visual{min-height:245px}
  .project-feature{padding:60px 0}.project-feature-copy h2{font-size:46px}.project-feature-visual{min-height:250px}
  .story-card{min-height:300px;padding:25px}.story-card h3{font-size:28px}
  .page-hero{min-height:420px}.page-hero h1{font-size:46px}.page-hero p{font-size:16px}
  .project-case-copy h2{font-size:40px}.project-case-visual{min-height:270px}
  .criteria-grid{grid-template-columns:1fr}.criteria-grid h2{grid-column:auto}
  .article-group{padding:55px 0}.article-group-title{grid-template-columns:48px 1fr}.article-group-title h2{font-size:36px}
  .article-tile{grid-template-columns:1fr}.article-tile-visual{min-height:210px}.article-tile>div:last-child{padding:24px}.article-tile h3{font-size:25px}
  .article-banner{min-height:540px}.article-banner h1{font-size:42px}.article-banner p{font-size:16px}.article-meta{flex-direction:column;gap:8px}
  .article-nav nav{grid-template-columns:1fr}
  .article-section{grid-template-columns:1fr;gap:10px;padding-bottom:40px;margin-bottom:40px}.article-section h2{font-size:31px}.article-section p,.article-section li{font-size:16px;line-height:1.8}
  .pdf-download{min-height:280px;flex-direction:column;align-items:flex-start;justify-content:flex-end;padding:28px}.pdf-download h2{font-size:34px}
  .article-next a{padding:26px}.article-next strong{font-size:21px}
  .split-story{padding:65px 0}.split-story h2{font-size:38px}.split-story-visual{min-height:260px}
  .policy-summary>div,.security-grid>article,.report-flow>div{padding:30px;min-height:auto}.security-grid{grid-template-columns:1fr}
  .policy-table{padding:55px 0}.policy-table>div{grid-template-columns:1fr;gap:7px}.policy-table h2{font-size:34px}
  .reliability-map{padding:60px 0 40px}.maintenance-cycle li{grid-template-columns:55px 1fr;font-size:17px}
  .release-list{padding:60px 0}.release-list article{grid-template-columns:1fr;gap:18px}.release-list h2{font-size:32px}
  .human-sitemap{grid-template-columns:1fr;padding:60px 0 80px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px 24px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
html[data-network="constrained"] .reveal{opacity:1;transform:none}
html[data-network="constrained"] .story-card,html[data-network="constrained"] .feature-story,html[data-network="constrained"] .panel-visual,html[data-network="constrained"] .project-feature-visual,html[data-network="constrained"] .article-tile-visual{background-image:none;background-color:#dfe5e8}