:root{--bg-primary: #FFFFFF;--bg-secondary: #F6F5F4;--bg-tertiary: #FBFBFA;--text-primary: #37352F;--text-secondary: #787774;--text-tertiary: #9B9A97;--border-color: rgba(55, 53, 47, .09);--border-hover: rgba(55, 53, 47, .16);--accent-blue: #2383E2;--accent-blue-hover: #1A73D1;--accent-coral: #EB5757;--accent-orange: #D9730D;--shadow-card: 0 1px 3px rgba(0,0,0,.04), 0 0 0 1px rgba(0,0,0,.03);--shadow-hover: 0 4px 12px rgba(0,0,0,.08), 0 0 0 1px rgba(0,0,0,.04);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;font-size:16px}.container{max-width:1120px;margin:0 auto;padding:0 24px}.navbar{position:fixed;top:0;left:0;right:0;height:76px;background:var(--bg-primary);border-bottom:1px solid var(--border-color);z-index:1000;display:flex;align-items:center}.navbar .container{display:flex;justify-content:space-between;align-items:center;width:100%}.navbar-brand{font-weight:700;font-size:18px;color:var(--text-primary);text-decoration:none;display:flex;align-items:center;gap:12px}.navbar-brand svg,.navbar-brand img{width:60px;height:60px;display:block;flex-shrink:0}@media(max-width:480px){.navbar{height:60px}.navbar-brand{font-size:15px;gap:8px}.navbar-brand svg,.navbar-brand img{width:42px;height:42px}}.nav-links{display:flex;align-items:center;gap:4px}.nav-links a{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:14px;padding:6px 10px;border-radius:var(--radius-sm);transition:all .15s ease}.nav-links a:hover{background:var(--bg-secondary);color:var(--text-primary)}.nav-links .btn-nav{background:var(--accent-blue);color:#fff;padding:6px 14px;border-radius:var(--radius-sm);font-weight:500;font-size:14px;text-decoration:none;transition:all .15s ease;margin-left:8px}.nav-links .btn-nav:hover{background:var(--accent-blue-hover);color:#fff}.btn-nav-outline{color:var(--text-primary);padding:6px 10px;font-weight:500;font-size:14px;text-decoration:none;transition:all .15s ease}.btn-nav-outline:hover{background:var(--bg-secondary)}.footer{padding:20px 0;background:var(--bg-primary);border-top:1px solid var(--border-color)}.footer-content{display:flex;justify-content:space-between;align-items:center}.footer-logo{font-weight:600;font-size:14px;color:var(--text-primary);display:flex;align-items:center;gap:6px}.footer-logo svg,.footer-logo img{width:40px;height:40px;display:block;flex-shrink:0}.footer-links{display:flex;gap:24px}.footer-links a{color:var(--text-secondary);text-decoration:none;font-size:13px;transition:color .15s ease}.footer-links a:hover{color:var(--text-primary)}.footer-copy{color:var(--text-tertiary);font-size:13px}@media(max-width:768px){.footer-content{flex-direction:column;gap:16px;text-align:center}}.site-main{padding-top:76px;min-height:calc(100vh - 76px)}@media(max-width:480px){.site-main{padding-top:60px}}.article{max-width:768px;margin:0 auto;padding:48px 24px 64px}@media(max-width:768px){.article{padding:32px 20px 48px}}.breadcrumb{font-size:13px;color:var(--text-tertiary);margin-bottom:24px}.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:6px}.breadcrumb a{color:var(--text-secondary);text-decoration:none}.breadcrumb a:hover{color:var(--text-primary);text-decoration:underline}.breadcrumb li:not(:last-child):after{content:"/";margin-left:6px;color:var(--text-tertiary)}.breadcrumb [aria-current=page]{color:var(--text-tertiary)}.post-header{margin-bottom:28px}.post-title{font-size:40px;line-height:1.15;font-weight:700;letter-spacing:-.02em;margin-bottom:16px}@media(max-width:768px){.post-title{font-size:30px}}.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-secondary)}.post-meta .author{font-weight:600;color:var(--text-primary)}.post-meta .author-title,.post-meta .dot{color:var(--text-tertiary)}.post-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.post-tag{font-size:12px;font-weight:500;color:var(--text-secondary);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:999px;padding:3px 10px}.post-lead{font-size:19px;line-height:1.55;color:var(--text-primary);background:var(--bg-tertiary);border:1px solid var(--border-color);border-left:3px solid var(--accent-orange);border-radius:var(--radius-md);padding:18px 20px;margin:0 0 32px}.prose{font-size:17px;line-height:1.7;color:var(--text-primary)}.prose>*+*{margin-top:20px}.prose h2{font-size:26px;line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-top:44px;margin-bottom:4px}.prose h3{font-size:20px;line-height:1.3;font-weight:600;margin-top:32px;margin-bottom:2px}.prose p{color:var(--text-primary)}.prose a{color:var(--accent-blue);text-decoration:underline;text-underline-offset:2px}.prose a:hover{color:var(--accent-blue-hover)}.prose ul,.prose ol{padding-left:24px}.prose li+li{margin-top:8px}.prose blockquote{border-left:3px solid var(--border-hover);padding-left:16px;color:var(--text-secondary);font-style:italic}.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:1px 5px}.prose pre{background:var(--text-primary);color:#f6f5f4;border-radius:var(--radius-md);padding:16px 18px;overflow-x:auto;font-size:14px}.prose pre code{background:none;border:none;padding:0;color:inherit}.prose img{max-width:100%;height:auto;border-radius:var(--radius-md);display:block}.prose hr{border:none;border-top:1px solid var(--border-color);margin:36px 0}.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:8px 0;display:block;overflow-x:auto}.prose thead{background:var(--bg-secondary)}.prose th,.prose td{border:1px solid var(--border-color);padding:10px 14px;text-align:left;vertical-align:top}.prose th{font-weight:600;color:var(--text-primary)}.prose tbody tr:nth-child(2n){background:var(--bg-tertiary)}.faq{margin-top:56px}.faq h2{font-size:26px;font-weight:700;margin-bottom:20px}.faq-item{border-top:1px solid var(--border-color);padding:18px 0}.faq-item:last-child{border-bottom:1px solid var(--border-color)}.faq-q{font-size:17px;font-weight:600;color:var(--text-primary);margin-bottom:8px}.faq-a{font-size:16px;line-height:1.65;color:var(--text-secondary)}.blog-index{max-width:820px;margin:0 auto;padding:56px 24px 72px}.blog-index .page-title{font-size:36px;font-weight:700;letter-spacing:-.02em;margin-bottom:8px}.blog-index .page-sub{color:var(--text-secondary);font-size:17px;margin-bottom:36px}.post-card{display:block;text-decoration:none;color:inherit;border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:22px 24px;transition:box-shadow .15s ease,border-color .15s ease}.post-card+.post-card{margin-top:16px}.post-card:hover{box-shadow:var(--shadow-hover);border-color:var(--border-hover)}.post-card h2{font-size:21px;font-weight:600;margin-bottom:6px;color:var(--text-primary)}.post-card p{color:var(--text-secondary);font-size:15px}.post-card .card-meta{color:var(--text-tertiary);font-size:13px;margin-top:12px}.empty-state{color:var(--text-secondary);font-size:16px}