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.hero-line{display:flex;flex-direction:column;align-items:flex-start;gap:6px;flex-wrap:wrap;margin-bottom:12px;position:relative;z-index:1}.chapter-hero .ant-tag{margin:0;border-radius:999px;border:none;background:linear-gradient(135deg,color-mix(in srgb,var(--primary) 20%,var(--surface)),color-mix(in srgb,var(--primary-strong, #8b6cf6) 14%,var(--surface)));color:var(--primary);font-weight:600;font-size:13px;padding:4px 14px;letter-spacing:.3px}.chapter-hero h1{margin:4px 0 0;font-size:34px;font-weight:700;letter-spacing:-.02em;line-height:1.25;color:var(--text)}.chapter-hero p{margin:0 0 18px;color:color-mix(in srgb,var(--text) 68%,var(--muted));font-size:15.5px;line-height:1.85;max-width:75ch;position:relative;z-index:1}.chapter-hero>span{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:10px;background:color-mix(in srgb,var(--surface) 75%,transparent);color:color-mix(in srgb,var(--text) 65%,var(--muted));font-size:13px;font-weight:500;border:1px solid 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16px;min-height:auto}.kp-card .ant-card-body{padding:24px 28px 22px}.app-shell.dark .kp-card.ant-card{box-shadow:0 1px 3px #0003,0 10px 28px #0000002e}.kp-card-title{display:flex;align-items:center;gap:14px}.kp-card-title .knowledge-order{width:44px;height:44px;flex:none;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--kl-field-a),var(--kl-field-b));border:1px solid var(--kl-divider);color:var(--primary);font-weight:800;font-size:16px;font-family:JetBrains Mono,SF Mono,ui-monospace,monospace}.kp-card-title-text{display:grid;gap:4px}.kp-card-title-text .ant-tag{margin:0;width:fit-content;border-radius:999px;border:none;background:color-mix(in srgb,var(--primary) 14%,var(--surface));color:var(--primary);font-weight:600;font-size:12px}.kp-card-title-text h2{margin:0;font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--text);line-height:1.3}.kp-card .ant-card-head-wrapper .ant-card-extra 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