:root{--gc-bg:#0d1117;--gc-surface:#161b22;--gc-surface-hover:#1c2333;--gc-border:#30363d;--gc-text:#e6edf3;--gc-text-muted:#adb6c0;--gc-text-dim:#9ba4ae;--gc-primary:#4f8ff7;--gc-primary-soft:rgba(79,143,247,0.12);--gc-primary-text:#fff;--gc-accent:#58a6ff;--gc-success:#3fb950;--gc-warning:#d29922;--gc-error:#f85149;--gc-input-bg:#0d1117;--gc-input-border:#30363d;--gc-radius:8px;--gc-radius-lg:12px;--gc-font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}[data-theme=light]{--gc-bg:#f6f8fa;--gc-surface:#fff;--gc-surface-hover:#f3f4f6;--gc-border:#d1d5db;--gc-text:#1f2937;--gc-text-muted:#4b5563;--gc-text-dim:#5b6472;--gc-primary:#2563eb;--gc-primary-soft:rgba(37,99,235,0.08);--gc-input-bg:#fff;--gc-input-border:#d1d5db}[data-theme=colourblind]{--gc-bg:#faf6f1;--gc-surface:#fff;--gc-border:#d4c8b8;--gc-text:#1a1a1a;--gc-text-muted:#4a433a;--gc-text-dim:#5c5347;--gc-primary:#0047ab;--gc-primary-soft:rgba(0,71,171,0.10);--gc-accent:#0047ab}*,::before,::after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--gc-font);font-size:15px;line-height:1.6;color:var(--gc-text);background:var(--gc-bg)}body{min-height:100vh}a{color:var(--gc-accent);text-decoration:none}a:hover{text-decoration:underline}h1{font-size:clamp(1.5rem,4vw,2.4rem);font-weight:800;letter-spacing:-.03em;color:var(--gc-text)}h2{font-size:1rem;font-weight:700;color:var(--gc-text)}h3{font-size:.9rem;font-weight:600;color:var(--gc-text)}p{color:var(--gc-text-muted);font-size:.9rem;line-height:1.65}strong{color:var(--gc-text);font-weight:600}.gc-topbar{position:sticky;top:0;z-index:200;background:var(--gc-bg);border-bottom:1px solid var(--gc-border);box-shadow:0 1px 12px rgba(0,0,0,.22)}.gc-topbar-inner{max-width:960px;margin:0 auto;padding:0 20px;height:52px;display:flex;align-items:center}.gc-logo-link{display:flex;align-items:center;gap:9px;text-decoration:none;flex-shrink:0;margin-right:12px}.gc-logo-mark{width:26px;height:26px}.gc-logo-text{font-size:15px;font-weight:800;letter-spacing:-.025em;color:var(--gc-text);white-space:nowrap}.gc-topnav{display:flex;align-items:center;gap:2px;flex:1;overflow:hidden}.gc-tnav-link{font-size:12px;font-weight:500;color:var(--gc-text-muted);text-decoration:none;padding:5px 8px;border-radius:20px;transition:all .15s;white-space:nowrap}.gc-tnav-link:hover,.gc-tnav-link.gc-tnav-active{color:var(--gc-text);background:var(--gc-surface-hover);text-decoration:none}[data-theme=light] .gc-tnav-link.gc-tnav-active{color:#1d4ed8}.gc-topbar-right{display:flex;align-items:center;gap:6px;flex-shrink:0;margin-left:auto}.gc-region-wrap,.gc-theme-wrap{position:relative}.gc-region-btn,.gc-theme-btn-top{display:flex;align-items:center;gap:5px;background:var(--gc-surface);border:1px solid var(--gc-border);border-radius:20px;padding:4px 10px;font-size:12px;color:var(--gc-text-muted);cursor:pointer;transition:all .15s;white-space:nowrap;font-family:var(--gc-font)}.gc-region-btn:hover,.gc-theme-btn-top:hover{border-color:var(--gc-text-muted);color:var(--gc-text)}.gc-region-flag{font-size:14px;line-height:1}.gc-region-caret,.gc-theme-caret{font-size:9px;opacity:.5}.gc-theme-btn-top svg{width:13px;height:13px}.gc-region-dropdown,.gc-theme-dropdown{position:absolute;top:calc(100% + 6px);right:0;background:var(--gc-surface);border:1px solid var(--gc-border);border-radius:var(--gc-radius-lg);box-shadow:0 8px 28px rgba(0,0,0,.32);min-width:210px;overflow:hidden;opacity:0;pointer-events:none;transform:translateY(-6px);transition:opacity .18s,transform .18s;z-index:400}.gc-theme-dropdown{min-width:170px}.gc-region-wrap.open .gc-region-dropdown,.gc-theme-wrap.open .gc-theme-dropdown{opacity:1;pointer-events:all;transform:translateY(0)}.gc-region-option,.gc-theme-option{display:flex;align-items:center;gap:10px;padding:10px 14px;cursor:pointer;font-size:13px;color:var(--gc-text-muted);transition:background .1s;border:0;background:0 0;width:100%;text-align:left;font-family:var(--gc-font)}.gc-region-option:hover,.gc-theme-option:hover{background:var(--gc-surface-hover);color:var(--gc-text)}.gc-region-option.active,.gc-theme-option.active{color:var(--gc-primary);background:var(--gc-primary-soft)}.gc-region-option-flag{font-size:18px;line-height:1;flex-shrink:0}.gc-region-option-info{flex:1;min-width:0}.gc-region-option-name{font-weight:600;font-size:13px;color:inherit}.gc-region-option-sub{font-size:11px;color:var(--gc-text-dim);margin-top:1px}.gc-region-option-badge{font-size:10px;padding:2px 7px;border-radius:10px;background:var(--gc-primary-soft);color:var(--gc-primary);font-weight:700;flex-shrink:0}.gc-region-detect-bar{padding:9px 14px;background:var(--gc-primary-soft);border-bottom:1px solid var(--gc-border);font-size:11px;color:var(--gc-primary);display:flex;align-items:center;gap:6px}.gc-theme-option svg{width:15px;height:15px;flex-shrink:0;opacity:.8}.gc-theme-option.active svg{opacity:1}.gc-theme-divider{height:1px;background:var(--gc-border);margin:3px 0}.gc-ad-top{background:var(--gc-surface);border-bottom:1px solid var(--gc-border);min-height:50px;display:flex;align-items:center;justify-content:center;padding:4px 0}.gc-ad-bottom{background:var(--gc-surface);border-top:1px solid var(--gc-border);min-height:50px;display:flex;align-items:center;justify-content:center;padding:4px 0;margin-top:0}.gc-footer{background:var(--gc-surface);border-top:1px solid var(--gc-border)}.gc-footer-inner{max-width:960px;margin:0 auto;padding:28px 20px 20px}.gc-footer-trust{display:flex;gap:12px;flex-wrap:wrap;padding-bottom:20px;border-bottom:1px solid var(--gc-border);margin-bottom:20px;justify-content:center}.gc-trust-pill{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;color:var(--gc-text-muted);background:var(--gc-input-bg);border:1px solid var(--gc-border);border-radius:20px;padding:5px 11px}.gc-trust-pill svg{width:13px;height:13px;color:var(--gc-success);flex-shrink:0}.gc-footer-sitemap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px 20px;margin-bottom:20px}@media (max-width:640px){.gc-footer-sitemap{grid-template-columns:repeat(2,1fr)}}.gc-fcol-head{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--gc-text-muted);margin-bottom:6px}.gc-fcol a{display:block;font-size:12px;color:var(--gc-text-muted);text-decoration:none;padding:6px 0;line-height:1.5;min-height:24px;transition:color .12s}.gc-fcol a:hover{color:var(--gc-primary)}.gc-footer-about{font-size:12px;color:var(--gc-text-muted);line-height:1.65;padding:14px 0;border-top:1px solid var(--gc-border);border-bottom:1px solid var(--gc-border);margin-bottom:14px}.gc-footer-about strong{color:var(--gc-text-muted)}.gc-footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}.gc-footer-copy{font-size:12px;color:var(--gc-text-muted)}.gc-footer-legal{display:flex;gap:14px;flex-wrap:wrap}.gc-footer-legal a{font-size:12px;color:var(--gc-text-muted);text-decoration:none;padding:4px 2px;min-height:24px;display:inline-flex;align-items:center;transition:color .12s}.gc-footer-legal a:hover{color:var(--gc-text-muted)}@media (max-width:640px){.gc-topnav{display:none}.gc-region-name{display:none}}@media print{.gc-topbar,.gc-footer,.gc-ad-top,.gc-ad-bottom{display:none!important}}.gc-cat-page{max-width:1200px;margin:0 auto;padding:0 16px 60px}.gc-cat-hero{position:relative;margin:4px 0 20px;padding:18px 20px 20px;border:1px solid var(--gc-border);border-radius:18px;background:linear-gradient(180deg,var(--gc-surface-hover) 0%,rgba(79,143,247,.06) 100%);box-shadow:0 10px 26px rgba(0,0,0,.12);overflow:hidden}.gc-cat-hero::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:linear-gradient(90deg,var(--gc-primary),transparent 72%);opacity:.9}.gc-cat-hero-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 12px}.gc-cat-pill{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border-radius:999px;border:1px solid rgba(79,143,247,.26);background:var(--gc-primary-soft);color:var(--gc-primary);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.gc-cat-pill--muted{border-color:var(--gc-border);background:var(--gc-surface);color:var(--gc-text-muted)}.gc-cat-hero h1{margin:0;font-size:clamp(2.05rem,3.2vw,2.65rem);line-height:1.1;letter-spacing:-.04em;text-wrap:balance}.gc-cat-hero p{max-width:70ch;margin:12px 0 0;font-size:1rem;line-height:1.62;color:var(--gc-text-muted)}.gc-calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}.gc-group-label{grid-column:1/-1;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--gc-text-muted);padding:16px 0 4px;margin-top:8px;border-top:1px solid var(--gc-border)}.gc-group-label:first-child{border-top:none;margin-top:0;padding-top:0}@media (max-width:1100px){.gc-calc-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:760px){.gc-calc-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.gc-calc-grid{grid-template-columns:1fr}}.gc-calc-card{background:var(--gc-surface);border:1px solid var(--gc-border);border-radius:16px;padding:18px 20px;text-decoration:none;display:flex;flex-direction:column;gap:6px;transition:transform .12s,box-shadow .15s;box-shadow:var(--gc-shadow);aspect-ratio:1/1;justify-content:center;overflow:hidden}.gc-calc-card:hover{border-color:var(--gc-primary);transform:translateY(-1px);text-decoration:none}.gc-calc-card-title{font-size:14px;font-weight:700;color:var(--gc-text);line-height:1.35}.gc-calc-card-desc{font-size:13px;color:var(--gc-text-muted);line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.gc-calc-card-arrow{font-size:12px;color:var(--gc-primary);margin-top:8px}.gc-breadcrumb{font-size:12px;color:var(--gc-text-muted);margin:0 0 10px;line-height:1.5}.gc-breadcrumb a{color:var(--gc-text-muted);text-decoration:none}.gc-breadcrumb a:hover{color:var(--gc-primary)}.gc-breadcrumb span{margin:0 6px;opacity:.5}.gc-cat-seo{margin-top:28px;padding:20px;background:var(--gc-surface);border:1px solid var(--gc-border);border-radius:16px;box-shadow:var(--gc-shadow)}.gc-cat-seo h2{font-size:.95rem;margin-bottom:8px}.gc-cat-seo p{font-size:.85rem;color:var(--gc-text-muted);line-height:1.65;margin-bottom:0}.gc-other-cats{margin-top:24px}.gc-other-cats-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--gc-text-muted);margin-bottom:10px}.gc-other-cats-list{display:flex;gap:8px;flex-wrap:wrap}.gc-other-cats-list a{font-size:12px;color:var(--gc-text-muted);border:1px solid var(--gc-border);border-radius:20px;padding:4px 12px;text-decoration:none;transition:all .15s}.gc-other-cats-list a:hover{color:var(--gc-primary);border-color:var(--gc-primary)}@media (max-width:640px){.gc-cat-page{padding:0 14px 48px}.gc-cat-hero{padding:16px 14px 18px;border-radius:16px;margin-bottom:16px}.gc-cat-hero h1{font-size:1.9rem}.gc-cat-hero p{font-size:.95rem}.gc-cat-hero-meta{gap:8px}}.gc-page-with-rail{display:grid;grid-template-columns:1fr 300px;gap:0 28px;max-width:1080px;margin:0 auto;align-items:start}.gc-page-with-rail .gc-main-col{min-width:0}.gc-page-with-rail .gc-main-col .gc-page{margin-left:0;margin-right:0;max-width:none}.gc-page-with-rail .gc-rail-col{position:sticky;top:60px;align-self:start;padding-top:8px;display:flex;flex-direction:column;gap:16px;max-height:calc(100vh - 68px);overflow-y:auto;scrollbar-width:none}.gc-page-with-rail .gc-rail-col::-webkit-scrollbar{display:none}@media (max-width:900px){.gc-page-with-rail{grid-template-columns:1fr;padding:0}.gc-rail-col{display:none!important}.gc-page-with-rail .gc-main-col .gc-page{max-width:720px;margin-left:auto;margin-right:auto}}[id^=gc-ad-]{position:relative;display:flex;flex-direction:column;align-items:center;width:100%;min-height:0;transition:min-height .2s ease,opacity .3s ease}[id^=gc-ad-]::before{content:"Advertisement";display:block;font-family:var(--gc-font, -apple-system, sans-serif);font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--gc-text-dim, #6e7681);text-align:center;width:100%;padding:3px 0 2px;line-height:1;flex-shrink:0}[id^=gc-ad-][data-state=loading]::after{content:"";display:block;border-radius:4px;background:linear-gradient(90deg,var(--gc-surface, #161b22) 25%,var(--gc-surface-hover, #1c2333) 50%,var(--gc-surface, #161b22) 75%);background-size:400% 100%;animation:gc-shimmer 1.6s ease infinite}@keyframes gc-shimmer{0%{background-position:100% 50%}to{background-position:0 50%}}[id^=gc-ad-][data-state=filled]>iframe{border:0;display:block}[id^=gc-ad-].gc-ad-empty::before{display:none}#gc-ad-top{background:var(--gc-surface, #161b22);border-bottom:1px solid var(--gc-border, #30363d);padding:6px 0}#gc-ad-top[data-state=loading]::after{width:min(728px,100%);height:90px}@media (max-width:767px){#gc-ad-top[data-state=loading]::after{width:min(320px,100%);height:50px}}#gc-ad-mid{margin:20px 0;background:0 0}#gc-ad-mid[data-state=loading]::after{width:min(728px,100%);height:90px}@media (max-width:767px){#gc-ad-mid[data-state=loading]::after{width:min(300px,100%);height:250px}}#gc-ad-result{margin:16px 0;background:0 0}#gc-ad-result[data-state=loading]::after{width:300px;height:250px}#gc-ad-rail{background:0 0;width:300px}#gc-ad-rail[data-state=loading]::after{width:300px;height:600px}#gc-ad-bottom{background:var(--gc-surface, #161b22);border-top:1px solid var(--gc-border, #30363d);border-bottom:1px solid var(--gc-border, #30363d);margin-top:24px;padding:6px 0}#gc-ad-bottom[data-state=loading]::after{width:min(728px,100%);height:90px}@media (max-width:767px){#gc-ad-bottom[data-state=loading]::after{width:min(300px,100%);height:250px}}.gc-house-ad{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;text-decoration:none;border-radius:6px;padding:12px 20px;background:var(--ha-bg, rgba(79,143,247,0.08));border:1px solid var(--ha-border, rgba(79,143,247,0.2));transition:opacity .15s,transform .15s;text-align:center;width:100%;box-sizing:border-box}.gc-house-ad:hover{opacity:.85;transform:translateY(-1px)}.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec){flex-direction:row;gap:12px;padding:0 20px;height:90px;max-width:728px;justify-content:flex-start}.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__sub,.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__cta,.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__eyebrow{display:none}.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__label{font-size:14px;font-weight:600}.gc-house-ad--mrec{width:300px;height:250px}.gc-house-ad--rail{width:300px;height:600px}.gc-house-ad__eyebrow{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--gc-text-dim, #6e7681);width:100%;text-align:center;margin-bottom:4px}.gc-house-ad__icon{font-size:28px;line-height:1;flex-shrink:0}.gc-house-ad--mrec .gc-house-ad__icon,.gc-house-ad--rail .gc-house-ad__icon{font-size:36px;margin-bottom:8px}.gc-house-ad__label{font-family:var(--gc-font, sans-serif);font-size:13px;font-weight:700;color:var(--gc-text, #e6edf3);line-height:1.3}.gc-house-ad--mrec .gc-house-ad__label,.gc-house-ad--rail .gc-house-ad__label{font-size:15px;margin-bottom:4px}.gc-house-ad__sub{font-size:11.5px;color:var(--gc-text-muted, #8b949e);line-height:1.4;max-width:220px}.gc-house-ad__cta{font-size:11px;color:var(--gc-primary, #4f8ff7);font-weight:600;margin-top:10px;letter-spacing:.02em}[data-theme=light] .gc-house-ad__cta{color:#1d4ed8}@media (max-width:767px){.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec){max-width:100%;height:50px;padding:0 12px;gap:8px}.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__icon{font-size:20px}.gc-house-ad:not(.gc-house-ad--rail):not(.gc-house-ad--mrec) .gc-house-ad__label{font-size:12px}}#gc-ad-result{animation:gc-slot-reveal .4s ease forwards}@keyframes gc-slot-reveal{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media print{[id^=gc-ad-],.gc-rail-col,.gc-house-ad{display:none!important}.gc-page-with-rail{grid-template-columns:1fr}}[data-theme=light] #gc-ad-top,[data-theme=light] #gc-ad-bottom{background:var(--gc-surface, #fff)}[data-theme=light] .gc-house-ad{box-shadow:0 1px 4px rgba(0,0,0,.06)}.gc-lazy{content-visibility:auto;contain-intrinsic-size:0 900px}.gc-lazy-sm{content-visibility:auto;contain-intrinsic-size:0 400px}