.xb-article { max-width: 860px; margin: 0 auto; padding: 40px 20px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a1a1a; line-height: 1.8; font-size: 16px; }
.xb-article h1 { font-size: 32px; line-height: 1.3; color: #0d1b2a; margin: 0 0 12px 0; font-weight: 700; }
.xb-article .xb-meta { color: #6b7280; font-size: 14px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid #e5e7eb; }
.xb-article h2 { font-size: 24px; color: #0d1b2a; margin: 40px 0 16px 0; font-weight: 700; padding-bottom: 8px; border-bottom: 2px solid #2563eb; display: inline-block; }
.xb-article h3 { font-size: 20px; color: #1e3a5f; margin: 28px 0 12px 0; font-weight: 600; }
.xb-article p { margin: 0 0 18px 0; }
.xb-article .xb-hero { width: 100%; max-height: 500px; object-fit: cover; border-radius: 12px; margin-bottom: 32px; }
.xb-article ul, .xb-article ol { margin: 0 0 20px 0; padding-left: 24px; }
.xb-article li { margin-bottom: 8px; padding-left: 4px; }
.xb-article .xb-step { background: #fff; border: 1px solid #e5e7eb; border-left: 4px solid #2563eb; border-radius: 0 12px 12px 0; padding: 20px 24px; margin: 20px 0; }
.xb-article .xb-step-num { display: inline-block; background: #2563eb; color: #fff; width: 32px; height: 32px; border-radius: 50%; text-align: center; line-height: 32px; font-weight: 700; margin-right: 10px; vertical-align: middle; }
.xb-article .xb-step h3 { display: inline; margin: 0; vertical-align: middle; }
.xb-article .xb-step p { margin: 12px 0 0 0; }
.xb-article .xb-table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
.xb-article .xb-table th { background: #0d1b2a; color: #fff; padding: 12px 16px; text-align: left; }
.xb-article .xb-table td { padding: 10px 16px; border-bottom: 1px solid #e5e7eb; }
.xb-article .xb-table tr:nth-child(even) td { background: #f8fafc; }
.xb-article .xb-cta { background: linear-gradient(135deg, #2563eb, #1d4ed8); color: #fff; padding: 32px 28px; border-radius: 12px; margin: 40px 0; text-align: center; }
.xb-article .xb-cta h3 { color: #fff; margin: 0 0 10px 0; font-size: 22px; }
.xb-article .xb-cta p { margin: 0 0 16px 0; opacity: 0.9; }
.xb-article .xb-btn { display: inline-block; background: #fff; color: #2563eb; padding: 12px 32px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 16px; }
.xb-article .xb-warning { background: #fffbeb; border: 1px solid #fcd34d; border-radius: 8px; padding: 16px 20px; margin: 20px 0; }
.xb-article .xb-warning strong { color: #92400e; }
.xb-article .xb-tip { background: #f0fdf4; border: 1px solid #86efac; border-radius: 8px; padding: 16px 20px; margin: 20px 0; }
.xb-article .xb-tip strong { color: #166534; }
.xb-article .xb-faq { margin: 32px 0; }
.xb-article .xb-faq-item { border: 1px solid #e5e7eb; border-radius: 8px; margin-bottom: 12px; overflow: hidden; }
.xb-article .xb-faq-q { background: #f8fafc; padding: 16px 20px; font-weight: 600; color: #0d1b2a; font-size: 15px; }
.xb-article .xb-faq-a { padding: 16px 20px; border-top: 1px solid #e5e7eb; color: #4b5563; }
.xb-article .xb-checklist { list-style: none; padding-left: 0; }
.xb-article .xb-checklist li { padding: 6px 0 6px 28px; position: relative; }
.xb-article .xb-checklist li::before { content: '☐'; position: absolute; left: 0; color: #2563eb; }
@media (max-width: 640px) { .xb-article { padding: 20px 16px; } .xb-article h1 { font-size: 26px; } .xb-article h2 { font-size: 20px; } .xb-article .xb-step { padding: 16px; } }