@charset "UTF-8";
/* Foundation: editorial troubleshooting journal */
:root{--ink:#20222a;--muted:#686b75;--subtle:#90939a;--paper:#faf9f6;--canvas:#fff;--surface:#f3f1ec;--surface-alt:#f8f5f2;--line:#e7e4dd;--red:#ad3540;--red-dark:#84232e;--red-soft:#f7e9e9;--gold:#c18b5c;--navy:#252e3e;--navy-light:#3c4556;--success:#297a67;--shadow:0 14px 45px rgba(32,34,42,.065);--shadow-large:0 25px 75px rgba(32,34,42,.09);--radius:16px;--radius-lg:26px;--width:1170px;--font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.84 var(--font);-webkit-font-smoothing:antialiased;overflow-wrap:break-word}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}h1,h2,h3,h4,p,ol,ul{margin-top:0}h1,h2,h3{line-height:1.28;letter-spacing:-.035em}h1{font-size:clamp(2.25rem,4.35vw,4.1rem);font-weight:780}h2{font-size:clamp(1.55rem,2.65vw,2.5rem);font-weight:760}h3{font-size:1.3rem;font-weight:735}p{margin-bottom:1.25em}p:last-child{margin-bottom:0}::selection{color:var(--red-dark);background:#f2d2d4}:focus-visible{outline:3px solid #b94b55;outline-offset:4px;border-radius:3px}.shell{width:min(calc(100% - 56px),var(--width));margin-inline:auto}.skip-link{position:fixed;top:-90px;left:15px;background:#fff;color:#000;z-index:1000;padding:12px 18px;border:2px solid var(--red)}.skip-link:focus{top:10px}.eyebrow{display:inline-flex;gap:9px;align-items:center;font-size:.76rem;font-weight:750;letter-spacing:.13em;color:var(--red);text-transform:uppercase;line-height:1.4}.status-dot{width:7px;height:7px;border-radius:50%;background:#be6b6a;box-shadow:0 0 0 4px rgba(185,75,85,.12)}.utility-strip{min-height:34px;background:var(--navy);color:#f8f5f0;font-size:.7rem;letter-spacing:.04em}.utility-inside{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:15px}.utility-tip{opacity:.78}.site-header{position:relative;z-index:10;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.header-inner{min-height:89px;display:flex;align-items:center;justify-content:space-between;gap:25px}.wordmark{display:inline-flex;align-items:center;gap:12px;font-size:1.25rem;line-height:1.3;letter-spacing:.04em;font-weight:800;white-space:nowrap}.wordmark small{display:block;font-size:.64rem;letter-spacing:.18em;font-weight:500;color:var(--muted);margin-top:5px}.logo-mark{display:grid;place-items:center;width:43px;height:43px;background:var(--red);color:#fff;border-radius:14px 14px 6px 14px;font-size:1.1rem;transform:rotate(-5deg)}.site-nav{display:flex;gap:clamp(12px,2.3vw,30px);align-items:center}.site-nav a{font-size:.875rem;font-weight:650;color:#54565e;position:relative;white-space:nowrap;padding:16px 0;transition:color .2s ease}.site-nav a::after{position:absolute;content:"";height:2px;background:var(--red);bottom:9px;left:0;right:100%;transition:right .2s ease}.site-nav a:hover,.site-nav a[aria-current]{color:var(--red)}.site-nav a:hover::after,.site-nav a[aria-current]::after{right:0}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;padding:10px;border-radius:10px;width:43px;height:43px}.menu-toggle span{display:block;height:2px;width:20px;background:var(--ink);margin:4px auto;transition:transform .2s,opacity .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(6px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-6px) rotate(-45deg)}
/* Home opening: expressive typography and simulated device artwork, no fake image assets */
.home-hero{position:relative;overflow:hidden;background:linear-gradient(120deg,#f8f5ef 0%,#fdfbf8 42%,#f0e9e3 100%);border-bottom:1px solid #eae4dc}.home-hero::before{content:"";position:absolute;inset:0 auto 0 -18%;width:45%;background:radial-gradient(closest-side,rgba(181,75,84,.08),transparent);pointer-events:none}.home-hero-grid{min-height:555px;display:grid;grid-template-columns:minmax(0,1.14fr) minmax(0,.86fr);align-items:center;gap:54px;padding-block:70px 82px}.hero-copy{position:relative;z-index:2}.hero-copy h1{max-width:700px;margin:23px 0;line-height:1.17}.hero-copy .lead{max-width:615px;font-size:1.04rem;color:#53545c;line-height:2.05}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:13px;margin-top:35px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:50px;padding:11px 24px;border-radius:10px;font-size:.88rem;font-weight:750;line-height:1.35;transition:transform .2s,background .2s,box-shadow .2s}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--red);color:#fff;box-shadow:0 10px 25px rgba(173,53,64,.16)}.button-primary:hover{background:var(--red-dark);box-shadow:0 14px 28px rgba(173,53,64,.19)}.button-light{border:1px solid #ddd5cf;background:#fff;color:var(--ink)}.button-light:hover{background:#f8f2f0}.microcopy{font-size:.75rem;color:var(--subtle);margin-top:22px;letter-spacing:.005em}.hero-visual{position:relative;min-height:365px;display:grid;place-items:center;isolation:isolate}.hero-visual::before{content:"";position:absolute;inset:6% 0 1% 9%;background:#e8d3c7;border-radius:49% 51% 54% 46% / 45% 43% 57% 55%;transform:rotate(-11deg);opacity:.59;z-index:-2}.visual-arc{position:absolute;border:1px solid rgba(173,53,64,.25);border-radius:50%;pointer-events:none}.arc-one{width:400px;height:400px;transform:rotate(24deg)}.arc-two{width:305px;height:305px;border-style:dashed;opacity:.45;transform:rotate(18deg)}.screen-mock{width:min(80%,330px);min-height:310px;background:#fff;border:9px solid #363945;border-radius:23px;box-shadow:18px 30px 75px rgba(59,40,45,.23);transform:rotate(5deg);overflow:hidden}.mock-top{height:39px;background:#ece9e7;border-bottom:1px solid #ddd9d8;display:flex;align-items:center;gap:5px;padding:0 14px}.mock-top i{width:7px;height:7px;border-radius:50%;background:#b7b0ad}.mock-top i:first-child{background:#d78486}.mock-feature{height:208px;background:linear-gradient(145deg,#b14752,#d3a28a 60%,#494358);position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:14px}.mock-feature::before{content:"";position:absolute;inset:20px;border:1px solid rgba(255,255,255,.16);border-radius:12px}.play-emblem{width:76px;height:76px;display:grid;place-items:center;padding-left:5px;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.4);color:#fff;backdrop-filter:blur(2px);border-radius:50%;font-size:25px}.mock-line{height:5px;border-radius:10px;background:rgba(255,255,255,.55)}.mock-line.long{width:48%}.mock-line.short{width:28%;opacity:.7}.mock-options{height:55px;display:flex;align-items:center;gap:10px;padding:13px}.mock-options span{height:23px;flex:1;background:#f0ece8;border-radius:6px}.floating-note{position:absolute;right:-14px;bottom:30px;background:#fff;padding:12px 19px;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);color:#6b4d4f;font-size:.75rem;font-weight:700;transform:rotate(-3deg)}
/* Section rhythm */
.quick-diagnose{padding-block:84px 94px}.section-heading{margin-bottom:30px}.section-heading h2{margin:10px 0 10px}.section-heading p{color:var(--muted);max-width:670px;font-size:.94rem;line-height:1.85}.section-heading.horizontal{display:flex;align-items:end;justify-content:space-between;gap:30px}.section-heading.horizontal p{max-width:270px;margin-bottom:5px;font-size:.83rem}.diagnose-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.diagnose-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:31px 28px 29px;min-height:277px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}.diagnose-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#e2c9c6}.card-number{font-size:.7rem;font-weight:700;letter-spacing:.16em;color:#ac9e97}.simple-icon{display:grid;place-items:center;margin-top:18px;width:49px;height:49px;background:#f4e9e4;color:var(--red);font-size:1.45rem;border-radius:13px}.diagnose-card h3{margin:23px 0 9px}.diagnose-card p{font-size:.86rem;line-height:1.8;color:var(--muted)}.text-link,.inline-link{font-size:.85rem;font-weight:750;color:var(--red)}.text-link{display:inline-flex;margin-top:11px}.inline-link{display:inline-flex;gap:12px;align-items:center;border-bottom:1px solid transparent;transition:border-color .2s}.inline-link:hover{border-color:currentColor}.feature-band{background:var(--navy);color:#fff;padding-block:78px}.feature-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(40px,6vw,95px);align-items:center}.feature-portrait{position:relative;min-height:450px;border-radius:15px;overflow:hidden;background:linear-gradient(145deg,#4a5262,#343e50 60%,#8e4d53);display:flex;align-items:end}.feature-portrait::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,21,29,.76),transparent 63%);pointer-events:none}.feature-portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.68}.portrait-caption{position:relative;z-index:1;padding:35px}.portrait-caption span{display:block;font-size:.75rem;letter-spacing:.14em;color:#e6ccd1;margin-bottom:12px}.portrait-caption strong{font-size:1.5rem;line-height:1.5}.feature-copy .eyebrow{color:#ecc0b7}.feature-copy h2{max-width:470px;margin:18px 0 21px}.feature-copy>p{color:#c7cbd4;line-height:1.95;max-width:510px}.arrow-list{list-style:none;margin:26px 0;padding:0}.arrow-list li{position:relative;border-top:1px solid #4b5262;padding:17px 10px 17px 29px}.arrow-list li::before{content:'↗';position:absolute;left:0;top:17px;color:#e4a79e}.arrow-list li strong{display:block;margin-bottom:4px;color:#fff}.arrow-list li span{display:block;color:#c5cad3;font-size:.85rem;line-height:1.8}.feature-copy .inline-link{color:#ffc2be;padding-bottom:5px}.path-section{padding-block:89px 97px}.device-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.device-panel{padding:33px 29px 29px;background:#fff;border:1px solid var(--line);border-top:3px solid #ba8c83;border-radius:0 0 14px 14px;display:flex;align-items:start;flex-direction:column;min-height:270px}.device-panel:nth-child(2){border-top-color:#6a7c87}.device-panel:nth-child(3){border-top-color:#aaa484}.device-label{font-size:.7rem;letter-spacing:.13em;font-weight:800;color:var(--red);margin-bottom:25px}.device-panel h3{font-size:1.21rem;margin-bottom:12px}.device-panel p{color:var(--muted);font-size:.85rem;line-height:1.85}.device-panel a{margin-top:auto;color:var(--red);font-size:.85rem;font-weight:750}.common-section{padding-bottom:94px}.common-section .faq-list{max-width:none}.closing-cta{background:linear-gradient(112deg,#f0e3de,#f7eee7);border:1px solid #ead5cb;border-radius:22px;margin-bottom:90px;padding:43px 48px;display:flex;justify-content:space-between;align-items:center;gap:45px}.closing-cta h2{font-size:1.65rem;margin:14px 0}.closing-cta p{font-size:.88rem;color:#6c6060;max-width:640px}.closing-cta .button{flex-shrink:0}
/* Inner page: article and in-page navigation */
.subhero{position:relative;background:#f2eee9;border-bottom:1px solid var(--line);overflow:hidden}.subhero::before{content:"";position:absolute;width:450px;height:450px;right:-110px;top:-225px;border:70px solid rgba(174,89,84,.055);border-radius:50%;pointer-events:none}.subhero .shell{position:relative;padding-block:49px 64px}.breadcrumb{display:flex;align-items:center;gap:12px;font-size:.75rem;color:#7c7775;margin-bottom:31px}.breadcrumb a:hover{text-decoration:underline;color:var(--red)}.breadcrumb span{color:#c0b7b1}.subhero h1{max-width:920px;font-size:clamp(2rem,3.35vw,3.3rem);line-height:1.3;margin:18px 0 18px}.subhero p{max-width:810px;font-size:1rem;line-height:2;color:#696267;margin-bottom:0}.subhero-download{background:#f3ede7}.subhero-install{background:#eff2ef}.subhero-issues{background:#f0eff4}.subhero-security{background:#f4eeee}.subhero-faq{background:#f3f0e8}.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:29px}.hero-tags span{background:rgba(255,255,255,.7);border:1px solid #e6ddd7;border-radius:100px;padding:6px 13px;color:#765f5c;font-size:.74rem}.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(220px,1fr);align-items:start;gap:76px;padding-block:67px 72px}.article-main{min-width:0}.intro-card{border-left:4px solid var(--red);background:#fff;padding:25px 31px;margin-bottom:60px;box-shadow:var(--shadow)}.intro-card h2{font-size:1.25rem;margin-bottom:9px}.intro-card p{font-size:.9rem;line-height:1.9;color:var(--muted)}.content-section{padding-bottom:55px;margin-bottom:58px;border-bottom:1px solid var(--line);scroll-margin-top:40px}.content-section:last-child{margin-bottom:0;border-bottom:0;padding-bottom:0}.content-section .section-heading{margin-bottom:22px}.content-section h2{font-size:clamp(1.55rem,2.2vw,2rem);margin-top:13px;line-height:1.42}.content-section>p{font-size:.975rem;line-height:2.05;color:#4b4d55;margin-bottom:1.35em}.content-section strong{font-weight:740}.check-list{padding:0;list-style:none;display:grid;gap:12px;margin:25px 0}.check-list li{position:relative;padding:15px 16px 15px 42px;background:#fff;border:1px solid var(--line);border-radius:9px;color:#53545d;font-size:.9rem;line-height:1.75}.check-list li::before{content:"✓";position:absolute;top:15px;left:17px;display:grid;place-items:center;font-size:.85rem;font-weight:800;color:var(--success)}.step-list{counter-reset:step;list-style:none;margin:25px 0;padding:0;display:grid;gap:2px}.step-list li{counter-increment:step;position:relative;padding:21px 20px 23px 62px;background:#fff;border-left:2px solid #e9d9d3}.step-list li:first-child{border-radius:10px 10px 0 0}.step-list li:last-child{border-radius:0 0 10px 10px}.step-list li::before{content:counter(step,decimal-leading-zero);position:absolute;top:19px;left:18px;font-weight:800;color:var(--red);font-size:.92rem}.step-list strong{font-size:1rem}.step-list p{margin:7px 0 0;font-size:.87rem;color:var(--muted);line-height:1.8}.step-list small{display:block;font-size:.78rem;color:#886d68;margin-top:9px}.note{background:#f6eee8;border:1px solid #ecd6c8;border-radius:11px;padding:19px 22px;margin-top:26px}.note strong{color:#85534d;font-size:.88rem}.note p{font-size:.86rem;color:#715e5d;line-height:1.8;margin-top:5px}.toc{position:sticky;top:30px;background:#fff;border:1px solid var(--line);padding:25px 25px 20px;border-radius:12px;box-shadow:0 12px 35px rgba(38,36,36,.025)}.toc .eyebrow{color:#72717c}.toc ol{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:3px}.toc li a{display:block;padding:9px 0;border-bottom:1px solid #f0eeeb;font-size:.83rem;color:#5f6067;line-height:1.65;transition:color .15s,padding-left .15s}.toc li:last-child a{border:0}.toc li a:hover,.toc li a.is-active{color:var(--red);padding-left:4px}.related{margin-bottom:90px;background:#efebe6;border-radius:20px;padding:38px}.related h2{margin:10px 0 25px;font-size:1.55rem}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}.related-grid:has(.related-item:nth-child(4)){grid-template-columns:repeat(4,minmax(0,1fr))}.related-item{background:#fff;border:1px solid #e6dfd7;border-radius:10px;padding:20px;display:flex;flex-direction:column;gap:9px;min-height:175px;transition:box-shadow .2s,transform .2s}.related-item:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.related-item strong{font-size:1.01rem}.related-item span{font-size:.8rem;color:var(--muted);line-height:1.75}.related-item b{color:var(--red);font-size:1rem;margin-top:auto;text-align:right}.platform-jump{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:-20px;position:relative;z-index:1}.platform-jump a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);transition:transform .2s}.platform-jump a:hover{transform:translateY(-3px)}.platform-jump strong{font-size:.89rem}.platform-jump span{font-size:.75rem;color:var(--red)}.symptom-finder{display:flex;align-items:center;justify-content:space-between;gap:35px;margin-top:55px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:25px 28px}.symptom-finder h2{font-size:1.28rem;margin:7px 0 0}.symptom-links{display:flex;flex-wrap:wrap;gap:9px;justify-content:end}.symptom-links a{font-size:.78rem;background:#f5f2f0;border:1px solid var(--line);padding:8px 12px;border-radius:7px}.symptom-links a:hover{color:var(--red);background:var(--red-soft)}.security-highlights{margin-top:-20px;position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));background:#fff;border:1px solid var(--line);border-radius:15px;padding:23px 10px;box-shadow:var(--shadow)}.security-highlights div{display:flex;flex-direction:column;align-items:center;border-right:1px solid var(--line);gap:4px}.security-highlights div:last-child{border:0}.security-highlights strong{font-size:1.1rem;color:var(--red)}.security-highlights span{font-size:.83rem;color:#55555c}
/* FAQ: readable without JS; JavaScript only progressively filters */
.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:11px;overflow:hidden;transition:border-color .2s,box-shadow .2s}.faq-item[open]{border-color:#e5c9c5;box-shadow:0 7px 24px rgba(77,40,42,.04)}.faq-item summary{display:flex;justify-content:space-between;align-items:center;gap:15px;list-style:none;padding:20px 24px;font-size:.965rem;font-weight:700;line-height:1.55;cursor:pointer}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";flex:0 0 auto;display:grid;place-items:center;width:28px;height:28px;color:var(--red);border-radius:50%;background:#f8eeec;font-size:1.14rem;font-weight:400}.faq-item[open] summary::after{content:"−"}.faq-item summary:hover{color:var(--red)}.faq-answer{border-top:1px solid #eee9e6;margin:0 24px;padding:17px 0 23px}.faq-answer p{font-size:.88rem;line-height:1.95;color:var(--muted)}.faq-hub{max-width:970px;padding-block:68px 90px}.faq-tools{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 25px;margin-bottom:28px;padding:22px 26px;background:#eee9e4;border-radius:13px}.faq-tools label{font-size:.88rem;font-weight:750}.faq-search-row{display:flex;gap:6px;align-items:center;background:#fff;border:1px solid #d9d3ce;padding:4px;border-radius:9px;flex:1;min-width:min(100%,280px);max-width:540px}.faq-search-row:focus-within{border-color:var(--red)}.faq-search-row input{width:100%;min-width:0;outline:none;border:none;background:transparent;padding:6px 10px;font-size:.84rem}.faq-search-row button{border:0;border-radius:7px;background:#f3f0ee;padding:7px 12px;flex-shrink:0;font-size:.76rem;color:#666}.faq-search-row button:hover{background:#e8dfdb}.faq-tools p{font-size:.75rem;color:var(--muted);margin:0}.faq-empty{text-align:center;padding:35px;color:var(--muted)}[hidden]{display:none!important}.not-found{text-align:center;min-height:440px;padding-block:95px}.error-code{color:#e5c6c5;font-weight:800;font-size:5rem;letter-spacing:-.09em;line-height:1}.not-found h1{font-size:2.2rem;margin:13px auto}.not-found p{color:var(--muted)}.error-links{display:flex;justify-content:center;gap:20px;margin-top:26px;flex-wrap:wrap}.error-links a{color:var(--red);font-weight:700;font-size:.85rem}
/* Footer */
.site-footer{background:#202631;color:#e4e6e9;padding-top:62px}.footer-grid{display:grid;grid-template-columns:minmax(0,2.1fr) minmax(0,1fr) minmax(0,1fr);gap:65px;padding-bottom:58px}.footer-brand{font-weight:850;font-size:1.4rem;letter-spacing:.04em}.footer-about p{color:#aeb4bd;max-width:390px;font-size:.85rem;line-height:1.9;margin-top:15px}.footer-grid nav{display:flex;flex-direction:column;gap:10px}.footer-grid nav strong{color:#fff;font-size:.85rem;margin-bottom:8px}.footer-grid nav a{color:#afb5bf;font-size:.82rem}.footer-grid nav a:hover{color:#f0b2a7}.footer-bottom{border-top:1px solid #3d4654;min-height:72px;display:flex;align-items:center;justify-content:space-between;font-size:.75rem;color:#9099a8}.footer-bottom a:hover{color:#fff}
/* Laptop and tablet */
@media(max-width:1100px){.shell{width:min(calc(100% - 44px),var(--width))}.header-inner{min-height:77px}.site-nav{gap:15px}.site-nav a{font-size:.79rem}.wordmark{font-size:1.15rem}.hero-visual{min-height:320px}.home-hero-grid{gap:24px;min-height:510px}.floating-note{right:0}.article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 230px}.related-grid:has(.related-item:nth-child(4)){grid-template-columns:repeat(2,minmax(0,1fr))}.related-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.symptom-finder{align-items:start;flex-direction:column}.symptom-links{justify-content:start}.footer-grid{gap:30px}}
@media(max-width:900px){.site-nav{gap:12px}.site-nav a{font-size:.72rem}.wordmark{font-size:1rem}.wordmark small{font-size:.55rem}.logo-mark{width:38px;height:38px}.home-hero-grid{grid-template-columns:1fr 0.62fr;gap:10px}.home-hero-grid h1{font-size:2.75rem}.hero-visual{min-height:310px}.screen-mock{width:82%;min-height:265px}.mock-feature{height:155px}.visual-arc.arc-one{height:285px;width:285px}.visual-arc.arc-two{height:240px;width:240px}.floating-note{font-size:.61rem;padding:10px}.feature-grid{gap:35px}.feature-portrait{min-height:400px}.device-panel{padding:25px 18px}.device-panel h3{font-size:1.12rem}.article-layout{grid-template-columns:minmax(0,1fr) 205px;gap:23px}.toc{padding:20px 16px}.related{padding:28px}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){html{scroll-padding-top:85px}.shell{width:min(calc(100% - 36px),var(--width))}.utility-strip{font-size:.63rem}.utility-tip{display:none}.site-header{position:sticky;top:0}.header-inner{min-height:70px}.wordmark{font-size:1.14rem}.wordmark small{font-size:.61rem}.menu-toggle{display:block}.site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:0 17px 30px rgba(40,35,35,.1);padding:12px 18px 20px;border-bottom:1px solid var(--line);max-height:calc(100vh - 70px);overflow-y:auto;flex-direction:column;gap:0;align-items:stretch}.site-nav.is-open{display:flex}.site-nav a{font-size:.92rem;border-bottom:1px solid var(--line);padding:13px 15px}.site-nav a::after{display:none}.home-hero-grid{grid-template-columns:1fr;min-height:auto;padding-block:51px 44px}.hero-copy h1{font-size:clamp(2.3rem,8vw,3.25rem);max-width:590px}.hero-copy .lead{font-size:.95rem}.hero-visual{min-height:250px;max-width:480px;width:100%;margin-inline:auto}.screen-mock{width:210px;min-height:215px;border-width:6px;border-radius:15px}.mock-feature{height:130px}.mock-top{height:29px}.mock-options{height:42px}.visual-arc.arc-one{height:265px;width:265px}.visual-arc.arc-two{height:210px;width:210px}.floating-note{right:20px;bottom:15px}.quick-diagnose,.path-section{padding-block:64px}.section-heading.horizontal{align-items:start;flex-direction:column;gap:4px}.section-heading.horizontal p{max-width:500px}.diagnose-grid,.device-columns{grid-template-columns:1fr}.diagnose-card{min-height:auto;padding:25px}.diagnose-card h3{margin-top:16px}.diagnose-card p{max-width:550px}.feature-band{padding-block:60px}.feature-grid{grid-template-columns:1fr}.feature-portrait{min-height:310px;max-width:520px}.feature-copy h2{margin-top:13px}.device-panel{min-height:0;padding:24px}.device-label{margin-bottom:14px}.device-panel p{margin-bottom:20px}.common-section{padding-bottom:62px}.closing-cta{padding:30px 26px;margin-bottom:60px;align-items:start;flex-direction:column;gap:12px}.subhero .shell{padding-block:35px 45px}.subhero h1{font-size:clamp(2rem,6.5vw,2.65rem)}.subhero p{font-size:.91rem}.article-layout{display:flex;flex-direction:column-reverse;gap:28px;padding-block:38px 45px}.toc{position:static;width:100%;padding:21px}.toc ol{grid-template-columns:repeat(2,minmax(0,1fr));display:grid;gap:4px 18px}.toc li a{padding:6px 0}.article-main{width:100%}.content-section{padding-bottom:36px;margin-bottom:38px}.content-section h2{font-size:1.66rem}.intro-card{margin-bottom:42px}.platform-jump{grid-template-columns:1fr;gap:8px;margin-top:14px}.platform-jump a{padding:13px 18px}.symptom-finder{margin-top:35px}.security-highlights{grid-template-columns:repeat(2,1fr);margin-top:14px;row-gap:16px}.security-highlights div:nth-child(2){border-right:0}.security-highlights div:nth-child(-n+2){padding-bottom:15px;border-bottom:1px solid var(--line)}.related{margin-bottom:65px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}.footer-about{grid-column:1 / -1}.footer-bottom{gap:10px;flex-wrap:wrap;padding-block:18px}}
@media(max-width:520px){body{font-size:15px}.shell{width:min(calc(100% - 28px),var(--width))}.wordmark{gap:9px}.logo-mark{width:36px;height:36px}.hero-copy h1{font-size:2.32rem}.hero-actions{align-items:stretch;flex-direction:column}.hero-actions .button{width:100%;justify-content:space-between}.hero-visual{min-height:220px}.screen-mock{transform:rotate(3deg)}.microcopy{font-size:.73rem}.section-heading h2{font-size:1.85rem}.diagnose-card{padding:23px}.feature-portrait{min-height:300px}.portrait-caption{padding:24px}.portrait-caption strong{font-size:1.22rem}.feature-copy h2{font-size:1.87rem}.arrow-list li{padding-block:15px}.closing-cta{padding:27px 22px}.closing-cta h2{font-size:1.48rem}.subhero h1{font-size:2.03rem}.subhero p{font-size:.89rem}.hero-tags{gap:5px}.hero-tags span{font-size:.68rem}.toc ol{grid-template-columns:1fr}.content-section h2{font-size:1.5rem}.content-section>p{font-size:.91rem}.check-list li{font-size:.85rem}.step-list li{padding:20px 15px 21px 51px}.step-list li::before{left:13px}.related{padding:25px 20px}.related-grid,.related-grid:has(.related-item:nth-child(4)){grid-template-columns:1fr}.related-item{min-height:auto}.faq-item summary{padding:17px;font-size:.91rem}.faq-answer{margin:0 17px}.faq-tools{padding:18px;display:block}.faq-tools label{display:block;margin-bottom:12px}.faq-search-row{min-width:0;margin-bottom:10px}.faq-hub{padding-block:38px 65px}.symptom-links{display:grid;grid-template-columns:repeat(2,1fr);width:100%}.symptom-links a{line-height:1.5}.security-highlights span{font-size:.74rem}.footer-grid{gap:24px}.footer-grid nav a{font-size:.77rem}.footer-bottom{font-size:.7rem}.error-code{font-size:4rem}.not-found h1{font-size:1.8rem}}
/* Hover-capable devices only and motion preferences */
@media(hover:none){.diagnose-card:hover,.related-item:hover,.platform-jump a:hover,.button:hover{transform:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important}}
@media print{.utility-strip,.site-header,.site-footer,.hero-visual,.toc,.menu-toggle,.hero-actions,.related,.closing-cta{display:none!important}body{background:#fff;color:#000;font-size:12pt}.shell{width:100%;max-width:none}.home-hero-grid,.feature-grid,.article-layout{display:block}.feature-band{background:#fff;color:#000}.feature-copy>p,.arrow-list li span{color:#333}.content-section,.faq-item{break-inside:avoid}.faq-answer{display:block}a{color:#000;text-decoration:underline}.subhero{background:#fff}.subhero .shell{padding:10px 0}.article-layout{padding:20px 0}}