:root{color-scheme:dark;--bg:#0b1220;--bg-soft:#101a2e;--card:#14203a;--border:#24344f;--text:#e8eef7;--muted:#9fb0c7;--accent:#4f8cff;--accent-strong:#2f6fe0;--accent-soft:rgba(79,140,255,.12);--max-w:1120px}:root[data-theme=light]{color-scheme:light;--bg:#f6f8fc;--bg-soft:#edf2f8;--card:#fff;--border:#d7dfeb;--text:#172337;--muted:#52647c;--accent:#245fbd;--accent-strong:#194b9c;--accent-soft:rgba(36,95,189,.1)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;background:var(--bg);color:var(--text);line-height:1.7;font-size:17px}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.site-header .inner{justify-content:space-between;height:64px;gap:16px}.logo,.site-header .inner{display:flex;align-items:center}.logo{gap:10px;font-weight:700;font-size:1.15rem;color:var(--text)}.logo:hover{text-decoration:none}.logo .mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--accent),#7c5cff);color:#fff;font-size:1rem;font-weight:800}.main-nav{display:flex;gap:4px;align-items:center}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;margin-left:8px;padding:7px 12px;border:1px solid var(--border);border-radius:9px;background:var(--card);color:var(--text);font-size:.88rem;font-weight:600;white-space:nowrap;cursor:pointer}.theme-toggle:hover{border-color:var(--accent);background:var(--accent-soft)}.theme-toggle:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.theme-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.main-nav a{color:var(--muted);padding:8px 12px;border-radius:8px;font-size:.95rem;font-weight:500}.main-nav a:hover,.main-nav a[aria-current=page]{color:var(--text);background:var(--accent-soft);text-decoration:none}.nav-cta{background:var(--accent);color:#fff!important}.nav-cta:hover{background:var(--accent-strong)!important}@media (max-width:720px){.main-nav a{padding:8px;font-size:.88rem}}@media (max-width:560px){.theme-toggle{width:40px;min-width:40px;margin-left:4px;padding:8px}.theme-toggle span{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}}.hero{padding:72px 0 56px;background:radial-gradient(600px 300px at 20% 0,rgba(79,140,255,.14),transparent),radial-gradient(600px 300px at 80% 10%,rgba(124,92,255,.1),transparent);border-bottom:1px solid var(--border)}.hero h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15;margin:0 0 16px;letter-spacing:-.02em}.hero p{color:var(--muted);font-size:1.15rem;max-width:640px;margin:0 0 28px}.hero .actions{display:flex;gap:12px;flex-wrap:wrap}.btn{display:inline-block;padding:12px 22px;border-radius:10px;font-weight:600;font-size:.98rem;border:1px solid transparent;cursor:pointer}.btn:hover{text-decoration:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-strong)}.btn-ghost{border-color:var(--border);color:var(--text)}.btn-ghost:hover{background:var(--accent-soft)}.section{padding:48px 0}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:24px}.section-head h2{margin:0;font-size:1.6rem;letter-spacing:-.01em}.section-head .more{font-size:.92rem;white-space:nowrap}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));grid-gap:20px;gap:20px}.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:22px;height:100%;transition:transform .15s ease,border-color .15s ease}.card-image{width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:9px;margin:-6px 0 16px;border:1px solid var(--border);background:var(--bg-soft)}.card:hover{transform:translateY(-3px);border-color:var(--accent);text-decoration:none}.card h2{margin:0 0 10px;font-size:1.12rem;line-height:1.35;color:var(--text);letter-spacing:normal}.card p{margin:0 0 16px;color:var(--muted);font-size:.95rem;flex:1 1}.card .meta{font-size:.82rem;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}.tag-pill{display:inline-block;background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:3px 10px;font-size:.78rem;font-weight:600}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;grid-gap:40px;gap:40px;padding:40px 0 64px}@media (max-width:960px){.article-layout{grid-template-columns:1fr}}.article-header{padding:48px 0 8px}.article-header h1{font-size:clamp(1.7rem,4vw,2.5rem);line-height:1.2;margin:12px 0;letter-spacing:-.02em}.article-header .lead{color:var(--muted);font-size:1.12rem;margin:0 0 16px}.article-meta{color:var(--muted);font-size:.88rem;display:flex;gap:14px;flex-wrap:wrap;align-items:center}.article-body{font-size:1.05rem}.article-hero{width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:14px;border:1px solid var(--border);margin-top:24px;background:var(--bg-soft)}.article-body h2{margin:40px 0 14px;font-size:1.45rem;letter-spacing:-.01em;scroll-margin-top:80px}.article-body h3{margin:28px 0 10px;font-size:1.15rem}.article-body p{margin:0 0 18px}.article-body ol,.article-body ul{margin:0 0 18px;padding-left:26px}.article-body li{margin-bottom:8px}.article-body code{background:var(--bg-soft);border:1px solid var(--border);padding:2px 6px;border-radius:6px;font-size:.9em}.article-body pre{background:var(--bg-soft);border:1px solid var(--border);border-radius:10px;padding:16px;overflow-x:auto}.article-body pre code{background:none;border:none;padding:0}.article-body blockquote{margin:0 0 18px;padding:12px 18px;border-left:3px solid var(--accent);background:var(--accent-soft);border-radius:0 10px 10px 0;color:var(--text)}.article-body table{width:100%;border-collapse:collapse;margin:0 0 18px;font-size:.92rem;line-height:1.5}.article-body td,.article-body th{border:1px solid var(--border);padding:8px 12px;text-align:left;vertical-align:top}.article-body th{background:var(--bg-soft);font-weight:600;white-space:nowrap}.article-body tr:nth-child(2n) td{background:color-mix(in srgb,var(--bg-soft) 55%,transparent)}@media (max-width:720px){.article-body table{display:block;overflow-x:auto}}.toc{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin:24px 0 8px}.toc strong{display:block;margin-bottom:10px;font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.toc ol{margin:0;padding-left:20px;font-size:.95rem}.toc li{margin-bottom:6px}.sidebar{display:flex;flex-direction:column;gap:24px}.sidebar-box{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}.sidebar-box h3{margin:0 0 12px;font-size:1rem}.sidebar-box ul{list-style:none;margin:0;padding:0}.sidebar-box li{padding:8px 0;border-bottom:1px solid var(--border);font-size:.93rem}.sidebar-box li:last-child{border-bottom:none}.sidebar-box a{color:var(--text);font-weight:500}.ad-slot{display:block;border:1px dashed var(--border);border-radius:10px;background:var(--bg-soft);color:var(--muted);font-size:.78rem;text-align:center;letter-spacing:.08em;text-transform:uppercase}.ad-slot.leaderboard{padding:18px 10px}.ad-slot.rectangle{padding:60px 10px}.quick-answer{background:var(--accent-soft);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:12px;padding:16px 20px;margin-top:24px}.quick-answer-label{margin:0 0 6px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--accent)}.quick-answer-text{margin:0;font-size:1.02rem;line-height:1.6;color:var(--text)}.author-box{display:flex;gap:16px;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 22px;margin:36px 0 0}.author-avatar{flex:none;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#7c5cff);color:#fff;font-weight:800;font-size:1.05rem;display:inline-flex;align-items:center;justify-content:center}.author-box h3{margin:0 0 2px;font-size:1rem}.author-box h3 a{color:var(--text)}.author-box .author-role{margin:0 0 8px;color:var(--accent);font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.author-box p{margin:0;color:var(--muted);font-size:.93rem}.read-next{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:12px;padding:18px 22px;margin:28px 0}.read-next-title{margin:0 0 12px;font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}.read-next-list{list-style:none;margin:0;padding:0}.read-next-list li{padding:10px 0;border-bottom:1px solid var(--border)}.read-next-list li:last-child{border-bottom:none;padding-bottom:2px}.read-next-list li:first-child{padding-top:2px}.read-next-list a{font-weight:600;font-size:1rem}.read-next-list p{margin:4px 0 0;color:var(--muted);font-size:.9rem;line-height:1.5}.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag-cloud .tag-pill{font-size:.9rem;padding:8px 16px}.site-footer{border-top:1px solid var(--border);background:var(--bg-soft);padding:48px 0 32px;margin-top:64px;font-size:.92rem;color:var(--muted)}.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;grid-gap:32px;gap:32px}@media (max-width:720px){.site-footer .cols{grid-template-columns:1fr}}.site-footer h2.footer-col-title{color:var(--text);margin:0 0 12px;font-size:.95rem;font-weight:700;letter-spacing:.01em}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin-bottom:8px}.site-footer a{color:var(--muted)}.site-footer a:hover{color:var(--text)}.site-footer .bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:.85rem}.faq-list{display:flex;flex-direction:column;gap:12px}.faq-item{border:1px solid var(--border);border-radius:10px;background:var(--card);overflow:hidden}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;background:none;border:none;color:var(--text);font-size:1rem;font-weight:600;text-align:left;cursor:pointer}.faq-question:hover{background:var(--accent-soft)}.faq-icon{color:var(--accent);font-size:1.2rem;line-height:1}.faq-answer{padding:0 18px 16px;color:var(--muted);font-size:.97rem}.prose{max-width:760px;padding:48px 0 64px}.prose h1{font-size:2.1rem;letter-spacing:-.02em}.prose h2{margin:36px 0 12px;font-size:1.4rem}.prose li,.prose p{color:var(--muted)}.prose ul{padding-left:24px}.page-pad{padding:48px 0 64px}