/* 资源中心 R-01 ~ R-04 */

.resources-page .page-hero,
.resources-page .section,
.resources-page .final-cta,
.blog-article .page-hero,
.blog-article .section,
.blog-article .final-cta {
  position: relative;
  z-index: 2;
}

.resource-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-4);
}

.resource-subnav a {
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--muted);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}

.resource-subnav a:hover,
.resource-subnav a.is-active {
  color: var(--accent);
  border-color: rgba(94, 200, 255, 0.45);
}

/* —— 博客筛选 & 卡片 —— */
/* reuse filter chips from cases when cases.css not loaded */
.filter-chip {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: var(--text-sm);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--dur-fast), color var(--dur-fast), background var(--dur-fast);
  min-height: 40px;
}

.filter-chip:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.filter-chip.is-active {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.blog-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.blog-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.65);
  overflow: hidden;
  transition: border-color var(--dur), transform var(--dur);
}

.blog-card:hover {
  border-color: rgba(94, 200, 255, 0.4);
  transform: translateY(-3px);
}

.blog-card.is-hidden { display: none; }

.blog-card-media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}

.blog-card:hover .blog-card-media img { transform: scale(1.04); }

.blog-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-3);
  gap: 10px;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  font-size: var(--text-xs);
  color: var(--muted);
}

.blog-card h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.blog-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
}

.blog-card .btn {
  align-self: flex-start;
  padding: 10px 16px;
  font-size: var(--text-sm);
}

.blog-empty {
  display: none;
  padding: var(--space-5);
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
}

.blog-empty.is-visible { display: block; }

.blog-disclaimer {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: 1px solid var(--line);
  font-size: var(--text-sm);
  color: var(--muted);
}

/* —— 文章详情 —— */
.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  color: var(--muted);
}

.article-body {
  width: min(100% - 40px, 720px);
  margin-inline: auto;
}

.article-body .lead {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.75;
  margin: 0 0 var(--space-4);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  margin: var(--space-5) 0 var(--space-2);
}

.article-body p {
  color: var(--muted);
  margin: 0 0 1.15em;
  line-height: 1.75;
}

.article-body ul {
  margin: 0 0 1.25em;
  padding-left: 1.2em;
  color: var(--muted);
}

.article-body li { margin-bottom: 8px; line-height: 1.6; }

.article-figure {
  margin: var(--space-4) 0;
}

.article-author {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: var(--space-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.55);
  margin-top: var(--space-5);
}

.article-author .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(94, 200, 255, 0.35);
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  flex-shrink: 0;
}

.article-author strong { display: block; }
.article-author span { font-size: var(--text-sm); color: var(--muted); }

/* —— 白皮书 —— */
.wp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.wp-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(13, 22, 38, 0.65);
  overflow: hidden;
}

.wp-cover {
  margin: 0;
  aspect-ratio: 3 / 4;
  max-height: 320px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #0a1220;
}

.wp-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.wp-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-3);
  gap: 10px;
}

.wp-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0;
  letter-spacing: -0.02em;
}

.wp-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
}

.wp-meta {
  font-size: var(--text-xs);
  color: var(--muted);
}

/* —— 下载弹层 —— */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 8, 15, 0.72);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
}

.modal-backdrop.is-open { display: flex; }

.modal-panel {
  width: min(100%, 440px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.modal-panel h3 {
  font-family: var(--font-display);
  margin: 0 0 8px;
}

.modal-panel .modal-desc {
  margin: 0 0 var(--space-3);
  color: var(--muted);
  font-size: 0.92rem;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.modal-form input,
.modal-form select {
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.65);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  min-height: 44px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

.modal-actions .btn { flex: 1; }

.modal-success {
  display: none;
  text-align: center;
}

.modal-success.is-visible { display: block; }
.modal-form.is-hidden { display: none; }

.modal-success p {
  color: var(--muted);
  margin: 0 0 var(--space-3);
}

body.modal-open { overflow: hidden; }

/* —— FAQ —— */
.faq-search {
  margin-bottom: var(--space-3);
}

.faq-search input {
  width: 100%;
  max-width: 420px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(6, 10, 18, 0.65);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  min-height: 44px;
}

.faq-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-4);
}

.faq-tab {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: var(--text-sm);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 40px;
}

.faq-tab.is-active {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.faq-group { display: none; }
.faq-group.is-active { display: block; }

.faq-group .faq-item.is-hidden { display: none; }

.faq-empty {
  display: none;
  color: var(--muted);
  padding: var(--space-3) 0;
}

.faq-empty.is-visible { display: block; }

/* —— 术语表 —— */
.glossary-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--space-4);
  position: sticky;
  top: calc(var(--nav-h) + var(--safe-top, 0px) + 8px);
  z-index: 5;
  padding: 10px 0;
  background: linear-gradient(180deg, var(--bg) 70%, transparent);
}

.glossary-index a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--muted);
}

.glossary-index a:hover,
.glossary-index a.is-active {
  color: var(--accent);
  border-color: rgba(94, 200, 255, 0.45);
}

.glossary-index a.is-disabled {
  opacity: 0.35;
  pointer-events: none;
}

.glossary-section {
  margin-bottom: var(--space-5);
  scroll-margin-top: calc(var(--nav-h) + 72px);
}

.glossary-section h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent);
  margin: 0 0 var(--space-2);
  letter-spacing: -0.02em;
}

.glossary-term {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.glossary-term dt {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.glossary-term dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.glossary-term .see-also {
  margin-top: 8px;
  font-size: var(--text-sm);
}

.glossary-term .see-also a { color: var(--accent); }

@media (max-width: 980px) {
  .blog-card-grid,
  .wp-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .resource-subnav {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px;
    padding-bottom: 4px;
    margin-inline: calc(-1 * max(0px, var(--gutter, 0px)));
    padding-inline: max(0px, var(--gutter, 0px));
  }

  .resource-subnav::-webkit-scrollbar {
    display: none;
  }

  .resource-subnav a {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

@media (max-width: 560px) {
  .blog-card-grid,
  .wp-grid {
    grid-template-columns: 1fr;
  }

  .blog-filters {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  .blog-filters::-webkit-scrollbar {
    display: none;
  }

  .blog-filters .filter-chip {
    flex: 0 0 auto;
  }

  .glossary-index {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
    top: calc(var(--nav-h-scrolled, 58px) + var(--safe-top, 0px) + 8px);
  }

  .glossary-index::-webkit-scrollbar {
    display: none;
  }

  .glossary-index a {
    flex: 0 0 auto;
  }

  .faq-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 6px;
    padding-bottom: 4px;
  }

  .faq-tabs::-webkit-scrollbar {
    display: none;
  }

  .faq-tab {
    flex: 0 0 auto;
    white-space: nowrap;
  }
}

@media (hover: none) {
  .blog-card:hover { transform: none; }
}