/* Cinematic editorial identity / responsive, accessible, no external dependencies */
:root{--bg:#0d1319;--surface:#152029;--surface2:#1b2a34;--text:#f3f0e9;--muted:#a7b3bb;--accent:#eac985;--edge:#34434d;--soft:#dfe6e4;--dark:#111b22;--max:1230px;--radius:14px;--shadow:0 28px 70px rgba(0,0,0,.22)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.shell{width:min(calc(100% - 64px),var(--max));margin-inline:auto}.skip-link{position:absolute;left:12px;top:-90px;z-index:100;background:#fff;color:#000;padding:12px 18px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:40;background:rgba(13,19,25,.95);border-bottom:1px solid rgba(255,255,255,.09);backdrop-filter:blur(15px)}.header-inner{max-width:1380px;margin:auto;min-height:83px;padding:0 42px;display:flex;align-items:center;gap:40px;justify-content:space-between}.brand{display:inline-flex;gap:10px;align-items:center;white-space:nowrap}.brand-mark{width:37px;height:37px;border:1px solid var(--accent);border-radius:12px;display:grid;place-items:center;color:var(--accent);font-size:15px}.brand-name{font-size:21px;font-weight:800;letter-spacing:.04em}.brand-tag{font-size:11px;color:var(--muted);border-left:1px solid var(--edge);padding-left:12px;letter-spacing:.08em}.primary-nav{display:flex;align-items:center;gap:5px}.primary-nav a{font-size:14px;color:#b8c1c5;padding:10px 13px;border-radius:6px;white-space:nowrap;transition:background .2s,color .2s}.primary-nav a:hover,.primary-nav a[aria-current=page]{color:var(--accent);background:#26323b}.menu-toggle{display:none}.hero{padding-top:74px;padding-bottom:80px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:65px;min-height:660px}.eyebrow,.section-index,.small-caps{color:var(--accent);font-weight:750;letter-spacing:.19em;font-size:11px;text-transform:uppercase}.pulse-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:7px;box-shadow:0 0 0 5px rgba(234,201,133,.12)}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.32;letter-spacing:-.035em}h1{font-size:clamp(36px,4.3vw,67px);font-weight:800}h2{font-size:clamp(27px,3vw,43px);font-weight:780}h3{font-size:21px;font-weight:730}.hero h1{margin:23px 0 28px;max-width:700px}.hero h1 em{display:block;font-style:normal;color:var(--accent)}.lede{font-size:17px;color:#bdc8ce;max-width:620px;line-height:1.95}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:33px 0 30px}.button{display:inline-flex;justify-content:center;align-items:center;gap:16px;min-height:49px;padding:11px 22px;font-size:14px;font-weight:750;border-radius:5px;transition:transform .18s,background .18s}.button:hover{transform:translateY(-2px)}.button-solid{background:var(--accent);color:var(--dark)}.button-solid:hover{background:#f6dfa8}.button-outline{border:1px solid #65727a;color:#f0f2f1}.button-outline:hover{background:#25313c}.button-light{background:#f5f0e7;color:#13202b}.hero-meta{display:flex;gap:9px;flex-wrap:wrap}.hero-meta span{font-size:12px;color:#adbbc1;border:1px solid #37434b;padding:4px 11px;border-radius:2px}.hero-visual{min-height:500px;position:relative;border-radius:140px 6px 6px 6px;overflow:hidden;background:linear-gradient(140deg,#6c6351,#283c4c 60%,#101820)}.hero-visual>img{width:100%;height:100%;min-height:500px;position:absolute;inset:0;object-fit:cover;opacity:.84}.hero-visual:after{content:"";position:absolute;inset:20% 0 0;background:linear-gradient(transparent,rgba(7,13,18,.9))}.visual-overlay{position:absolute;z-index:1;bottom:30px;left:32px;right:32px;display:flex;align-items:center;gap:18px}.visual-overlay small{display:block;color:#cfd7d9;font-size:12px;margin-bottom:5px}.visual-overlay strong{font-size:19px}.screen-icon{border:1px solid rgba(255,255,255,.6);width:54px;height:54px;display:grid;place-items:center;font-size:27px}.home-ribbon{border-top:1px solid var(--edge);border-bottom:1px solid var(--edge);background:#111b23}.ribbon-inner{min-height:97px;display:flex;justify-content:space-between;align-items:center;gap:30px}.ribbon-inner p{font-size:15px;font-weight:700;margin:0}.ribbon-inner ol{display:flex;list-style:none;gap:40px;padding:0;margin:0}.ribbon-inner li{font-size:13px;color:#d5dcde;white-space:nowrap}.ribbon-inner strong{font-family:Georgia,serif;color:var(--accent);margin-right:8px}.section{padding-top:100px;padding-bottom:100px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:35px}.section-heading h2{margin:10px 0 0}.section-heading>p{max-width:400px;color:var(--muted);font-size:14px;margin:0}.topics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.info-card{border:1px solid var(--edge);background:var(--surface);min-height:255px;padding:31px 28px 28px;display:flex;flex-direction:column;align-items:flex-start;transition:transform .2s,border-color .2s}.info-card:hover{transform:translateY(-5px);border-color:#6a7780}.card-kicker{font-family:Georgia,serif;color:var(--accent);font-size:12px;letter-spacing:.09em;margin-bottom:22px}.info-card h3{margin-bottom:14px}.info-card p{font-size:14px;color:var(--muted);line-height:1.85;margin-bottom:22px}.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--accent);font-size:14px;font-weight:750}.text-link:hover{text-decoration:underline;text-underline-offset:4px}.info-card .text-link{margin-top:auto}.feature-split{display:grid;grid-template-columns:.95fr 1.05fr;align-items:center;gap:8%;padding-block:52px 80px}.feature-image{min-height:490px;background:#26333b;overflow:hidden;position:relative}.feature-image img{width:100%;height:100%;min-height:490px;object-fit:cover;position:absolute;inset:0}.feature-copy{padding:20px 0}.feature-copy h2{margin:16px 0 25px}.feature-copy>p{color:var(--muted);line-height:1.95}.feature-points{border-top:1px solid var(--edge);margin:29px 0}.feature-points>div{display:grid;grid-template-columns:90px 1fr;gap:10px;border-bottom:1px solid var(--edge);padding:18px 0}.feature-points b{font-size:14px;color:var(--accent)}.feature-points span{font-size:14px;color:#c2cbd0}.steps-section{padding-top:85px}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.steps-grid article{padding:26px 0;border-top:2px solid #61717b}.steps-grid article>span{font-size:34px;color:var(--accent);font-family:Georgia,serif}.steps-grid h3{font-size:18px;margin:22px 0 11px}.steps-grid 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1fr;gap:75px;padding-bottom:65px}.footer-brand{font-size:23px;font-weight:800}.footer-brand span{font-weight:400;font-size:12px;color:var(--accent)}.footer-grid p{font-size:13px;max-width:490px;color:var(--muted);margin:17px 0 0}.footer-grid nav{display:flex;flex-direction:column;gap:13px}.footer-grid nav strong{font-size:14px;color:var(--accent);margin-bottom:5px}.footer-grid nav a{color:#c5cdd0;font-size:13px}.footer-grid nav a:hover{color:var(--accent)}.footer-bottom{border-top:1px solid #26323b;padding-block:22px;display:flex;justify-content:space-between;gap:15px;font-size:12px;color:#929fa8}.page-top{padding-top:35px}.crumbs{display:flex;align-items:center;gap:11px;color:#94a6b1;font-size:12px}.crumbs a:hover{color:var(--accent)}.page-heading{padding:70px 0 55px;max-width:880px}.page-heading h1{margin:16px 0 23px;font-size:clamp(36px,4.2vw,60px)}.page-heading p{font-size:17px;color:#afbdc5;max-width:740px}.lead-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:24px}.lead-picture{background:#2e3b45;min-height:430px;position:relative;overflow:hidden}.lead-picture img{position:absolute;width:100%;height:100%;object-fit:cover}.lead-note{background:#202e38;padding:38px}.lead-note h2{font-size:27px;margin:16px 0 24px}.check-list{list-style:none;margin:0;padding:0}.check-list li{border-top:1px solid #43505a;padding:15px 0;display:grid;gap:3px}.check-list strong{font-size:14px;color:var(--accent)}.check-list span{color:#c0cad0;font-size:13px}.editorial{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:100px;padding-block:70px 105px}.article-column{max-width:740px}.article-column h2{margin:14px 0 28px}.article-column h3{margin:32px 0 13px}.article-column p{color:#bcc7ce;line-height:2.08;margin-bottom:18px}.aside-panel{background:#192630;border:1px solid var(--edge);padding:27px 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p{color:#bbc8cd}.comparison-section{display:grid;grid-template-columns:.7fr 1.3fr;gap:65px;padding-block:75px 110px;border-top:1px solid var(--edge);border-bottom:1px solid var(--edge)}.comparison-section h2{margin:14px 0}.comparison-section p{color:var(--muted)}.comparison-table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;text-align:left;font-size:14px}table caption{text-align:left;color:var(--muted);font-size:12px;margin-bottom:14px}th,td{padding:16px 13px;border-bottom:1px solid var(--edge);vertical-align:top}thead th{background:var(--surface2);color:var(--accent)}tbody th{white-space:nowrap}tbody td{color:#bdc7ce}.mode-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.mode-grid .info-card{min-height:220px}.alt-split{padding-top:100px}.troubleshoot-intro{display:grid;grid-template-columns:1.1fr .9fr;background:#1d2c36}.troubleshoot-intro>div:first-child{min-height:380px;position:relative}.troubleshoot-intro 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h2{font-size:29px;margin:0 0 25px}.faq-main .faq-list{margin-bottom:60px}.faq-end{background:var(--surface);padding:32px;border:1px solid var(--edge)}.faq-end h3{margin-bottom:12px}.faq-end p{color:var(--muted)}.error-page{min-height:65vh;padding-block:115px}.error-page>span{color:var(--accent);letter-spacing:.25em}.error-page h1{margin:25px 0}.error-page p{color:var(--muted)}
@media(max-width:1100px){.header-inner{padding:0 22px;gap:15px}.brand-tag{display:none}.primary-nav a{padding:8px 9px;font-size:13px}.hero{gap:35px}.editorial{gap:40px}.steps-grid{grid-template-columns:repeat(2,1fr)}.ribbon-inner ol{gap:20px}}
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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}