.kbp-page { color: #1e293b; background: #fff; }
.kbp-hero { position: relative; overflow: hidden; background: #0b1220; padding: 72px 0 64px; }
.kbp-hero::before { content: ""; position: absolute; width: 520px; height: 520px; border-radius: 50%; background: radial-gradient(circle, rgba(10,102,194,.35), transparent 68%); top: -180px; right: -80px; pointer-events: none; }
.kbp-hero::after { content: ""; position: absolute; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(180,83,9,.18), transparent 70%); bottom: -120px; left: 8%; pointer-events: none; }
.kbp-hero-inner { position: relative; z-index: 1; max-width: 1400px; margin: 0 auto; padding: 10px 24px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.kbp-crumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255,255,255,.55); margin-bottom: 22px; }
.kbp-crumb a { color: rgba(255,255,255,.75); text-decoration: none; }
.kbp-crumb a:hover { color: #fff; }
.kbp-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); color: #dbeafe; font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 40px; margin-bottom: 18px; }
.kbp-badge i { color: #60a5fa; }
.kbp-hero h1 { color: #fff; font-size: clamp(28px, 4vw, 44px); line-height: 1.18; font-weight: 700; letter-spacing: -.03em; margin: 0 0 16px; }
.kbp-hero h1 span { color: #93c5fd; }
.kbp-lead { color: rgba(255,255,255,.78); font-size: 17px; line-height: 1.65; max-width: 640px; margin-bottom: 28px; }
.kbp-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.kbp-btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 8px; font-weight: 600; font-size: 14px; padding: 12px 20px; text-decoration: none !important; }
.kbp-btn-primary { background: #0a66c2; color: #fff !important; border: 1px solid #0a66c2; }
.kbp-btn-primary:hover { background: #0858a8; color: #fff !important; }
.kbp-btn-ghost { background: transparent; color: #fff !important; border: 1px solid rgba(255,255,255,.28); }
.kbp-btn-ghost:hover { background: rgba(255,255,255,.08); }
.kbp-btn-light { color: #0f172a !important; border-color: #c9d8ea; }
.kbp-btn-block { width: 100%; justify-content: center; }
.kbp-meta { display: flex; flex-wrap: wrap; gap: 16px; color: rgba(255,255,255,.62); font-size: 13px; }
.kbp-meta i { color: #34d399; margin-right: 6px; }
.kbp-panel { background: #fff; border-radius: 16px; padding: 28px; box-shadow: 0 24px 60px rgba(0,0,0,.28); }
.kbp-panel h2 { font-size: 18px; font-weight: 700; margin: 0 0 8px; color: #0f172a; }
.kbp-panel p { color: #64748b; font-size: 14px; margin-bottom: 18px; }
.kbp-panel-list { list-style: none; padding: 0; margin: 0 0 20px; }
.kbp-panel-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: #334155; padding: 8px 0; border-bottom: 1px solid #eef2f7; }
.kbp-panel-list i { color: #0a66c2; margin-top: 3px; }
.kbp-section { max-width: 1400px; margin: 0 auto; padding: 72px 24px; }
.kbp-section--tight { padding-top: 0; }
.kbp-kicker { font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #0a66c2; margin-bottom: 10px; }
.kbp-h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 700; letter-spacing: -.03em; color: #0f172a; margin: 0 0 12px; }
.kbp-sub { color: #64748b; font-size: 16px; line-height: 1.65; max-width: 720px; margin-bottom: 36px; }
.kbp-sub--center { margin-left: auto; margin-right: auto; }
.kbp-prose { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.kbp-prose p { color: #475569; line-height: 1.75; font-size: 15.5px; margin-bottom: 14px; }
.kbp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.kbp-card { display: block; background: #fff; border: 1px solid #e8eef4; border-radius: 14px; padding: 22px; text-decoration: none !important; color: inherit; height: 100%; transition: border-color .15s, box-shadow .15s; }
.kbp-card:hover { border-color: #0a66c2; box-shadow: 0 10px 28px rgba(10,102,194,.08); }
.kbp-card i { width: 40px; height: 40px; border-radius: 10px; background: #eef4fb; color: #0a66c2; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.kbp-card h3 { font-size: 16px; font-weight: 700; color: #0f172a; margin: 0 0 8px; }
.kbp-card p { font-size: 14px; color: #64748b; line-height: 1.55; margin: 0 0 10px; }
.kbp-card em { font-style: normal; font-size: 12px; font-weight: 600; color: #0a66c2; }
.kbp-help { background: #0b1220; color: #fff; }
.kbp-help .kbp-section { padding: 64px 24px; }
.kbp-help .kbp-kicker { color: #93c5fd; }
.kbp-help .kbp-h2 { color: #fff; }
.kbp-help .kbp-sub { color: rgba(255,255,255,.7); }
.kbp-help-row { display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; }
.kbp-help-box { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: 16px; padding: 28px; }
.kbp-help-box ul { margin: 0; padding-left: 18px; color: rgba(255,255,255,.78); line-height: 1.9; }
.kbp-faq { background: #f8fafc; }
.kbp-faq-item { background: #fff; border: 1px solid #e8eef4; border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.kbp-faq-q { width: 100%; background: none; border: 0; text-align: left; padding: 16px 18px; font-weight: 600; color: #0f172a; display: flex; justify-content: space-between; gap: 12px; }
.kbp-faq-a { display: none; padding: 0 18px 16px; color: #64748b; font-size: 14.5px; line-height: 1.65; }
.kbp-faq-item.open .kbp-faq-a { display: block; }
.kbp-ai { margin-top: 28px; background: #f4f8ff; border: 1px solid #e2eaf6; border-radius: 16px; padding: 22px 24px; }
.kbp-ai-title { font-size: 16px; font-weight: 700; color: #1e293b; margin: 0 0 14px; }
.kbp-ai-list { display: flex; flex-wrap: wrap; gap: 10px; }
.kbp-ai-btn { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid #dbe4f0; border-radius: 999px; padding: 8px 14px 8px 8px; color: #334155 !important; font-size: 14px; font-weight: 600; text-decoration: none !important; }
.kbp-ai-btn:hover { border-color: #0a66c2; color: #0a66c2 !important; }
.kbp-ai-ico { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 12px; }
.kbp-ai-ico-gpt { background: #10a37f; }
.kbp-ai-ico-grok { background: #111827; }
.kbp-ai-ico-pplx { background: #20808d; }
.kbp-ai-ico-claude { background: #d97757; }
.kbp-end { text-align: center; padding: 72px 24px; }
.kbp-end .kbp-cta { justify-content: center; }
.kbp-videos { background: #f8fafc; border-bottom: 1px solid #e8eef4; }
.kbp-videos-inner { max-width: 1400px; margin: 0 auto; padding: 56px 24px; }
.kbp-videos-head { margin-bottom: 28px; }
.kbp-videos-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.kbp-video-card { background: #fff; border: 1px solid #e8eef4; border-radius: 14px; overflow: hidden; }
.kbp-video-frame { position: relative; aspect-ratio: 16 / 9; background: #0b1220; }
.kbp-video-frame video { width: 100%; height: 100%; object-fit: cover; display: block; background: #0b1220; }
.kbp-video-empty { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; color: rgba(255,255,255,.55); font-size: 13px; }
.kbp-video-empty i { font-size: 28px; color: #60a5fa; }
.kbp-video-card figcaption { padding: 12px 14px; font-size: 14px; font-weight: 600; color: #0f172a; }
.kbp-related { background: #fff; }
.kbp-related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.kbp-related-h { font-size: 12px; font-weight: 700; letter-spacing: .08em; color: #0a66c2; margin-bottom: 12px; }
.kbp-related-list { list-style: none; padding: 0; margin: 0; }
.kbp-related-list li { margin-bottom: 8px; }
.kbp-related-list a { color: #334155; text-decoration: none; font-size: 14px; display: flex; gap: 8px; align-items: flex-start; }
.kbp-related-list a:hover, .kbp-related-list a[aria-current="page"] { color: #0a66c2; }
.kbp-related-list i { margin-top: 3px; color: #0a66c2; width: 16px; }
@media (max-width: 991px) {
    .kbp-hero-inner, .kbp-prose, .kbp-help-row { grid-template-columns: 1fr; }
    .kbp-grid, .kbp-videos-grid, .kbp-related-grid { grid-template-columns: 1fr 1fr; }
    .kbp-hero { padding: 48px 0 40px; }
}
@media (max-width: 575px) {
    .kbp-grid, .kbp-videos-grid, .kbp-related-grid { grid-template-columns: 1fr; }
}