/* 知识科普：汇总页 + 文章页 */
.kp-wrap { max-width: 1100px; margin: 0 auto; padding: 2rem 1rem 3rem; box-sizing: border-box; }
.kp-crumbs { font-size: 0.85rem; color: #64748b; margin-bottom: 1.25rem; }
.kp-crumbs a { color: #2563eb; text-decoration: none; }
.kp-crumbs a:hover { text-decoration: underline; }

/* ---------- 汇总页 ---------- */
.kp-hub-hero { background: #ffffff; border: 1px solid #e2e8f0; border-radius: 1rem; padding: 2rem; margin-bottom: 2rem; }
.kp-hub-hero h1 { font-size: 2rem; line-height: 1.3; margin: 0 0 0.75rem; color: #0f172a; }
.kp-hub-hero p { color: #475569; line-height: 1.8; margin: 0 0 1.25rem; max-width: 760px; }
.kp-search { width: 100%; max-width: 420px; box-sizing: border-box; padding: 0.7rem 1rem; border: 1px solid #cbd5e1; border-radius: 0.6rem; font-size: 0.95rem; background: #f8fafc; color: #0f172a; }
.kp-search:focus { outline: 2px solid #93c5fd; border-color: #3b82f6; background: #fff; }
.kp-topic-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }
.kp-topic-nav a { font-size: 0.85rem; padding: 0.35rem 0.8rem; border-radius: 999px; background: #eff6ff; color: #1d4ed8; text-decoration: none; border: 1px solid #bfdbfe; }
.kp-topic-nav a:hover { background: #dbeafe; }

.kp-section { margin-bottom: 2.5rem; }
.kp-section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; border-bottom: 2px solid #e2e8f0; padding-bottom: 0.6rem; margin-bottom: 1.25rem; }
.kp-section-head h2 { font-size: 1.35rem; margin: 0; color: #0f172a; }
.kp-section-head span { font-size: 0.85rem; color: #64748b; }
.kp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.kp-card { display: flex; flex-direction: column; background: #fff; border: 1px solid #e2e8f0; border-radius: 0.9rem; overflow: hidden; text-decoration: none; color: inherit; transition: border-color .2s, box-shadow .2s; }
.kp-card:hover { border-color: #3b82f6; box-shadow: 0 6px 16px rgba(37, 99, 235, 0.12); }
.kp-card img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; display: block; background: #e2e8f0; }
.kp-card-body { padding: 1.1rem 1.25rem 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.kp-card-meta { display: flex; gap: 0.5rem; align-items: center; font-size: 0.78rem; color: #64748b; }
.kp-badge { font-size: 0.72rem; font-weight: 700; padding: 0.15rem 0.55rem; border-radius: 999px; background: #eff6ff; color: #1d4ed8; }
.kp-badge.pillar { background: #fef3c7; color: #92400e; }
.kp-card h3 { font-size: 1.08rem; line-height: 1.45; margin: 0; color: #0f172a; }
.kp-card p { font-size: 0.9rem; line-height: 1.7; color: #475569; margin: 0; }
.kp-upcoming { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0.6rem; }
.kp-upcoming li { background: #fff; border: 1px dashed #cbd5e1; border-radius: 0.6rem; padding: 0.7rem 0.9rem; font-size: 0.9rem; color: #475569; }
.kp-upcoming li small { display: block; color: #94a3b8; margin-top: 0.2rem; }
.kp-empty { display: none; color: #64748b; padding: 1rem 0; }

/* ---------- 文章页 ---------- */
.kp-article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 2rem; align-items: start; }
.kp-article { background: #fff; border: 1px solid #e2e8f0; border-radius: 1rem; padding: 2.25rem 2.5rem; min-width: 0; }
.kp-article h1 { font-size: 2rem; line-height: 1.35; margin: 0 0 1rem; color: #0f172a; }
.kp-byline { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; font-size: 0.85rem; color: #64748b; padding-bottom: 1.25rem; border-bottom: 1px solid #e2e8f0; margin-bottom: 1.5rem; }
.kp-byline strong { color: #334155; }
.kp-lead { font-size: 1.05rem; line-height: 1.9; color: #1e293b; background: #f8fafc; border-left: 4px solid #3b82f6; padding: 1rem 1.25rem; border-radius: 0 0.5rem 0.5rem 0; margin: 0 0 1.5rem; }
.kp-cover { width: 100%; max-width: 400px; height: auto; border-radius: 0.75rem; display: block; margin: 0 auto 1.75rem; }
.kp-article h2 { font-size: 1.45rem; margin: 2.25rem 0 0.9rem; color: #0f172a; padding-top: 0.25rem; scroll-margin-top: 90px; }
.kp-article h3 { font-size: 1.12rem; margin: 1.5rem 0 0.6rem; color: #0f172a; }
.kp-article p, .kp-article li { font-size: 1rem; line-height: 1.9; color: #334155; }
.kp-article p { margin: 0 0 1rem; }
.kp-article ul, .kp-article ol { padding-left: 1.4rem; margin: 0 0 1rem; }
.kp-article li { margin-bottom: 0.35rem; }
.kp-article a { color: #2563eb; }
.kp-table-wrap { overflow-x: auto; margin: 0 0 1.25rem; }
.kp-article table { width: 100%; border-collapse: collapse; font-size: 0.92rem; min-width: 520px; }
.kp-article th, .kp-article td { border: 1px solid #e2e8f0; padding: 0.65rem 0.75rem; text-align: left; vertical-align: top; line-height: 1.6; }
.kp-article th { background: #f1f5f9; color: #0f172a; }
.kp-note { background: #fffbeb; border: 1px solid #fde68a; color: #78350f; border-radius: 0.6rem; padding: 0.9rem 1.1rem; margin: 0 0 1.25rem; font-size: 0.95rem; line-height: 1.8; }
.kp-tip { background: #ecfdf5; border: 1px solid #a7f3d0; color: #065f46; border-radius: 0.6rem; padding: 0.9rem 1.1rem; margin: 0 0 1.25rem; font-size: 0.95rem; line-height: 1.8; }
.kp-steps { counter-reset: s; list-style: none; padding: 0 !important; }
.kp-steps li { counter-increment: s; position: relative; padding: 0.8rem 1rem 0.8rem 3.2rem; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 0.6rem; margin-bottom: 0.6rem; }
.kp-steps li::before { content: counter(s); position: absolute; left: 1rem; top: 0.85rem; width: 1.6rem; height: 1.6rem; border-radius: 50%; background: #2563eb; color: #fff; font-weight: 700; font-size: 0.85rem; display: flex; align-items: center; justify-content: center; }
.kp-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0 0 1.25rem; }
.kp-flow span { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e3a8a; border-radius: 0.5rem; padding: 0.45rem 0.75rem; font-size: 0.9rem; font-weight: 600; }
.kp-flow b { color: #94a3b8; }

.kp-faq { margin-top: 2.5rem; }
.kp-faq details { border: 1px solid #e2e8f0; border-radius: 0.6rem; padding: 0.85rem 1.1rem; margin-bottom: 0.6rem; background: #f8fafc; }
.kp-faq summary { cursor: pointer; font-weight: 700; color: #0f172a; line-height: 1.6; }
.kp-faq details p { margin: 0.6rem 0 0; }

.kp-reco { margin-top: 2.5rem; background: linear-gradient(135deg, #eff6ff, #f5f3ff); border: 1px solid #c7d2fe; border-radius: 0.9rem; padding: 1.5rem; }
.kp-reco h2 { margin-top: 0 !important; font-size: 1.2rem !important; }
.kp-reco-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0.75rem; margin: 0.75rem 0 1rem; }
.kp-reco-item { background: #fff; border: 1px solid #e2e8f0; border-radius: 0.6rem; padding: 0.85rem 1rem; text-decoration: none; color: inherit; display: block; }
.kp-reco-item:hover { border-color: #3b82f6; }
.kp-reco-item strong { display: block; color: #0f172a; margin-bottom: 0.2rem; }
.kp-reco-item span { font-size: 0.85rem; color: #475569; }
.kp-reco-more { font-weight: 700; }

.kp-related { margin-top: 2rem; }
.kp-related ul { list-style: none; padding: 0; }
.kp-related li { border-bottom: 1px solid #f1f5f9; padding: 0.5rem 0; }

.kp-aside { position: sticky; top: 90px; background: #fff; border: 1px solid #e2e8f0; border-radius: 1rem; padding: 1.25rem; }
.kp-aside p { font-weight: 700; color: #0f172a; margin: 0 0 0.75rem; font-size: 0.95rem; }
.kp-aside ol { margin: 0; padding-left: 1.2rem; }
.kp-aside li { font-size: 0.88rem; line-height: 1.6; margin-bottom: 0.4rem; }
.kp-aside a { color: #475569; text-decoration: none; }
.kp-aside a:hover { color: #2563eb; }

@media (max-width: 960px) {
  .kp-article-layout { grid-template-columns: 1fr; }
  .kp-aside { display: none; }
}
@media (max-width: 640px) {
  .kp-wrap { padding: 1rem 16px 2rem; }
  .kp-hub-hero { padding: 1.25rem; }
  .kp-hub-hero h1 { font-size: 1.5rem; }
  .kp-article { padding: 1.25rem 1rem; border-radius: 0.75rem; }
  .kp-article h1 { font-size: 1.5rem; }
  .kp-article h2 { font-size: 1.25rem; }
  .kp-grid { grid-template-columns: 1fr; }
}