/* CNGateway — /resources/china-entry page styles
 * ==============================================
 * Consumes shared design tokens from /assets/styles.css.
 * Nothing is redefined — navy #0A2540, crimson #C8102E, gold #C9A961,
 * Playfair Display + Inter.
 *
 * TWO TRAPS THIS FILE GUARDS AGAINST (learned on /expo and /tools/entry):
 * 1. `hidden` is only a UA-level `display: none`. ANY author rule setting
 *    `display` on the same element defeats it silently. Every class toggled
 *    via the `hidden` attribute carries an explicit
 *    `[hidden] { display: none !important; }` rule.
 * 2. Logical properties (margin-inline-*, padding-inline-*) are used instead
 *    of left/right so the Arabic RTL layout mirrors without a second sheet.
 */

/* ============================================================
   Page header meta strip
   ============================================================ */
.rc-meta-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.5rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.rc-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.rc-meta-item svg { color: var(--gold); flex-shrink: 0; }
.rc-meta-item strong { color: var(--text); font-weight: 600; }

/* Staleness banner — same visual language as /tools/entry */
.rc-stale {
  margin: 0 0 1.5rem;
  padding: 0.85rem 1.15rem;
  font-size: 0.875rem;
  line-height: 1.6;
  border-radius: 10px;
  border: 1px solid;
}
.rc-stale[hidden] { display: none !important; }
.rc-stale.is-amber {
  color: #7c4a03;
  background: #fff8ec;
  border-color: #f0d9a8;
}
.rc-stale.is-red {
  color: #8a1120;
  background: #fdf0f1;
  border-color: #f0c0c5;
}

/* ============================================================
   Disclaimer strip — always visible, sets responsibility boundary
   ============================================================ */
.rc-disclaimer {
  margin: 0 0 2.5rem;
  padding: 1.1rem 1.35rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-inline-start: 3px solid var(--gold);
  border-radius: 10px;
}

/* ============================================================
   "From entry" context bar
   ============================================================ */
.rc-from-entry {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 2rem;
  padding: 0.9rem 1.25rem;
  background: rgba(10, 37, 64, 0.04);
  border: 1px solid rgba(10, 37, 64, 0.1);
  border-radius: 10px;
}
.rc-from-entry[hidden] { display: none !important; }
.rc-from-entry-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
}
.rc-from-entry-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-inline-start: auto;
  padding: 0.42rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--navy-soft);
  border-radius: 999px;
  transition: background 0.2s, border-color 0.2s;
}
.rc-from-entry-back:hover { background: var(--bg-alt); border-color: var(--navy); }

/* ============================================================
   Section shells
   ============================================================ */
.rc-section { padding: 3rem 0 4rem; }
.rc-section-alt { background: var(--bg-alt); }

.rc-section-head { margin-bottom: 2.25rem; max-width: 46rem; }
.rc-section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 0.6rem;
}
.rc-section-head p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ============================================================
   Topic cards — the primary task entry points
   ============================================================ */
.rc-topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1rem;
}
.rc-topic-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.4rem 1.5rem;
  text-align: start;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  position: relative;
  overflow: hidden;
}
.rc-topic-card::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 3px;
  background: var(--crimson);
  transform: scaleX(0);
  transform-origin: inline-start;
  transition: transform 0.25s ease;
}
.rc-topic-card:hover {
  border-color: var(--navy);
  box-shadow: 0 12px 28px -18px rgba(10, 37, 64, 0.2);
  transform: translateY(-2px);
}
.rc-topic-card:hover::before { transform: scaleX(1); }
.rc-topic-card:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}
.rc-topic-card.is-active {
  border-color: var(--navy);
  background: rgba(10, 37, 64, 0.03);
  box-shadow: 0 8px 20px -14px rgba(10, 37, 64, 0.22);
}
.rc-topic-card.is-active::before { transform: scaleX(1); }

.rc-topic-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--navy);
  background: rgba(10, 37, 64, 0.06);
  border-radius: 9px;
  flex-shrink: 0;
}
.rc-topic-card.is-active .rc-topic-icon {
  color: #fff;
  background: var(--navy);
}
.rc-topic-label {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.35;
}
.rc-topic-desc {
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--text-light);
}
.rc-topic-count {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ============================================================
   Filter bar — sticky, mirrors /expo treatment
   ============================================================ */
.rc-filters {
  position: sticky;
  top: 72px;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.85rem;
  padding: 0.7rem 0.9rem;
  margin-bottom: 1.75rem;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.rc-search {
  flex: 1 1 14rem;
  min-width: 0;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-size: 0.875rem;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
}
.rc-search:focus {
  outline: none;
  border-color: var(--navy);
}
.rc-search::placeholder { color: var(--text-light); }

.rc-filter-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.rc-filter-chip {
  padding: 0.42rem 0.95rem;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.18s, background 0.18s, border-color 0.18s;
}
.rc-filter-chip:hover { color: var(--navy); background: var(--bg-alt); }
.rc-filter-chip.is-active {
  color: #fff;
  background: var(--navy);
  border-color: var(--navy);
}
.rc-count {
  margin-inline-start: auto;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  white-space: nowrap;
}

/* Active topic pill row — shows which topic is filtered, removable */
.rc-active-topic {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.rc-active-topic[hidden] { display: none !important; }
.rc-active-topic-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gold);
}
.rc-active-topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.5rem 0.3rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 999px;
}
.rc-active-topic-clear {
  display: grid;
  place-items: center;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--text-light);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: color 0.18s, background 0.18s;
}
.rc-active-topic-clear:hover { color: var(--crimson); background: rgba(200, 16, 46, 0.08); }

/* ============================================================
   Resource cards
   ============================================================ */
.rc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(21rem, 1fr));
  gap: 1.25rem;
}
.rc-empty {
  padding: 3rem 1rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-light);
}
.rc-empty[hidden] { display: none !important; }

.rc-card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.5rem 1.6rem 1.35rem;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.rc-card:hover {
  border-color: var(--navy-soft);
  box-shadow: 0 12px 30px -20px rgba(10, 37, 64, 0.22);
}
.rc-card.is-needs-review {
  border-color: #f0d9a8;
  background: #fffdf8;
}

.rc-card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem 0.75rem;
}
.rc-card-name {
  flex: 1 1 12rem;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--navy);
}
.rc-badges { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.rc-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  white-space: nowrap;
}
/* Source type is never colour-only — the label itself carries the meaning */
.rc-badge.src-official {
  color: #0f5132;
  background: #eaf7f0;
  border: 1px solid #b7e2c9;
}
.rc-badge.src-industry {
  color: #6b4a05;
  background: #fff8ec;
  border: 1px solid #f0d9a8;
}
.rc-badge.src-CNGateway {
  color: var(--navy);
  background: rgba(10, 37, 64, 0.06);
  border: 1px solid rgba(10, 37, 64, 0.15);
}

.rc-card-authority {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-light);
}

.rc-field { display: flex; flex-direction: column; gap: 0.2rem; }
.rc-field-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--gold);
}
.rc-field-value {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted);
}

.rc-card-notes {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.8rem 0.95rem;
  background: var(--bg-alt);
  border-radius: 9px;
}
.rc-note-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.79rem;
  line-height: 1.55;
  color: var(--text-muted);
}
.rc-note-row svg { flex-shrink: 0; margin-top: 2px; color: var(--text-light); }

.rc-card-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: auto;
  padding-top: 0.35rem;
}
.rc-open-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: #fff;
  background: var(--navy);
  border-radius: 7px;
  transition: background 0.2s, transform 0.2s;
}
.rc-open-btn:hover { background: var(--navy-dark); transform: translateY(-1px); }
.rc-open-btn svg { flex-shrink: 0; }
/* 次级入口：官网的中文版（英文版入口为主） */
.rc-open-btn.is-alt {
  color: var(--navy); background: transparent;
  border: 1px solid var(--navy); font-weight: 500;
}
.rc-open-btn.is-alt:hover { background: rgba(10, 37, 64, .06); }

.rc-help-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  font: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--navy);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.rc-help-btn:hover { border-color: var(--navy); background: var(--bg-alt); }

.rc-reviewed {
  margin-inline-start: auto;
  font-size: 0.72rem;
  color: var(--text-light);
  white-space: nowrap;
}

.rc-review-warning {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  font-size: 0.79rem;
  line-height: 1.55;
  color: #7c4a03;
  background: #fff8ec;
  border: 1px solid #f0d9a8;
  border-radius: 8px;
}
.rc-review-warning svg { flex-shrink: 0; margin-top: 2px; }

/* ============================================================
   Entry check CTA card
   ============================================================ */
.rc-entry-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem 2.25rem;
  background: var(--navy);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}
.rc-entry-cta::before {
  content: '';
  position: absolute;
  inset-block-start: -80px;
  inset-inline-end: -80px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(200, 16, 46, 0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.rc-entry-cta-copy { flex: 1 1 22rem; position: relative; z-index: 1; }
.rc-entry-cta-copy h2 {
  color: #fff;
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  margin-bottom: 0.6rem;
}
.rc-entry-cta-copy p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}
.rc-entry-cta .btn {
  position: relative;
  z-index: 1;
  background: #fff;
  color: var(--navy);
  flex-shrink: 0;
}
.rc-entry-cta .btn:hover {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* ============================================================
   Help modal
   ============================================================ */
.rc-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: rgba(6, 26, 48, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  overflow-y: auto;
}
.rc-modal-backdrop[hidden] { display: none !important; }

.rc-modal {
  width: 100%;
  max-width: 34rem;
  padding: 2rem 2.15rem 2.15rem;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 30px 70px -30px rgba(6, 26, 48, 0.45);
}
.rc-modal-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.rc-modal-head h3 {
  flex: 1;
  font-size: 1.25rem;
  color: var(--navy);
}
.rc-modal-close {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  color: var(--text-light);
  background: var(--bg-alt);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.18s, background 0.18s;
}
.rc-modal-close:hover { color: var(--crimson); background: rgba(200, 16, 46, 0.08); }

.rc-modal-sub {
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-muted);
}
.rc-modal-context {
  margin-bottom: 1.25rem;
  padding: 0.7rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--bg-alt);
  border-inline-start: 3px solid var(--gold);
  border-radius: 7px;
}

.rc-modal form { display: flex; flex-direction: column; gap: 0.9rem; }
.rc-modal-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}
.rc-modal label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
}
.rc-modal input,
.rc-modal textarea {
  padding: 0.6rem 0.8rem;
  font: inherit;
  font-size: 0.875rem;
  color: var(--text);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
}
.rc-modal input:focus,
.rc-modal textarea:focus { outline: none; border-color: var(--navy); }
.rc-modal textarea { resize: vertical; min-height: 4.5rem; }

.rc-modal-msg {
  display: none;
  padding: 0.7rem 0.95rem;
  font-size: 0.84rem;
  line-height: 1.6;
  border-radius: 8px;
}
.rc-modal-msg.show { display: block; }
.rc-modal-msg.ok {
  color: #0f5132;
  background: #eaf7f0;
  border: 1px solid #b7e2c9;
}
.rc-modal-msg.err {
  color: #8a1120;
  background: #fdf0f1;
  border: 1px solid #f0c0c5;
}

.rc-modal-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
}
.rc-modal-cancel {
  font: inherit;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: color 0.18s;
}
.rc-modal-cancel:hover { color: var(--navy); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .rc-entry-cta { padding: 1.75rem; }
}

@media (max-width: 640px) {
  .rc-filters { position: static; padding: 0.65rem 0.75rem; }
  .rc-count { margin-inline-start: 0; }
  .rc-grid { grid-template-columns: 1fr; }
  .rc-topics-grid { grid-template-columns: 1fr; }
  .rc-modal-row { grid-template-columns: 1fr; }
  .rc-from-entry-back { margin-inline-start: 0; }
  .rc-reviewed { margin-inline-start: 0; width: 100%; }
  .rc-section { padding: 2.25rem 0 3rem; }
  .rc-modal { padding: 1.5rem 1.35rem 1.6rem; }
}