/* ==========================================================================
   未来家族办公室 · 扩展样式：研究与洞见（INSIGHTS）
   --------------------------------------------------------------------------
   与 assets/index-*.css 共用同一套设计语言，独立成文件，便于后续整体移除或替换。
   设计令牌（与主样式一致）：
     象牙白 #FFFDF7   墨 #1F1F1F   米金 #C8A564   棕金 #886E4A
     发丝线 #EAE6DC / #E8E2D6
     中文字体 "Noto Serif SC"，西文字体 "Cormorant Garamond"
   说明：主样式是 Tailwind 编译产物，只有被用到的原子类才存在，
        因此本文件不使用 Tailwind 原子类，全部显式声明，避免类名缺失。
   ========================================================================== */

/* ---------- 1. 研究主线：四宫格（发丝线分隔） ---------- */
.ffo-topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: #EAE6DC;
  border: 1px solid #EAE6DC;
}
@media (min-width: 768px) {
  .ffo-topic-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .ffo-topic-grid { grid-template-columns: repeat(4, 1fr); }
}

.ffo-topic {
  background-color: #FFFFFF;
  padding: 34px 26px 32px;
}

.ffo-topic .ffo-topic-num {
  display: block;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 13px;
  letter-spacing: 0.32em;
  color: #886E4A;
  margin-bottom: 16px;
  opacity: 0.75;
}

.ffo-topic h3 {
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: #1F1F1F;
  margin: 0 0 12px;
}

.ffo-topic p {
  font-size: 14px;
  line-height: 1.95;
  color: rgba(31, 31, 31, 0.6);
  margin: 0;
}

/* ---------- 2. 近期观察：卡片网格 ---------- */
.ffo-notes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}
@media (min-width: 768px) {
  .ffo-notes-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .ffo-notes-grid { grid-template-columns: repeat(3, 1fr); }
}

.ffo-note {
  display: flex;
  flex-direction: column;
  background-color: #FFFFFF;
  border: 1px solid #EAE6DC;
  padding: 32px 28px 30px;
  transition: border-color 0.35s ease, box-shadow 0.35s ease, transform 0.35s ease;
}

.ffo-note:hover {
  border-color: #C8A564;
  box-shadow: 0 14px 34px -22px rgba(31, 31, 31, 0.45);
  transform: translateY(-3px);
}

.ffo-note .ffo-note-cat {
  align-self: flex-start;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: #886E4A;
  border: 1px solid #E8E2D6;
  padding: 4px 11px;
  margin-bottom: 20px;
}

.ffo-note h3 {
  font-family: "Noto Serif SC", Georgia, serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.65;
  letter-spacing: 0.01em;
  color: #1F1F1F;
  margin: 0 0 14px;
}

.ffo-note p {
  font-size: 14px;
  line-height: 1.95;
  color: rgba(31, 31, 31, 0.6);
  margin: 0;
}

/* ---------- 3. 索取完整研究：页尾行动区 ---------- */
.ffo-insights-cta {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.ffo-insights-cta p {
  font-size: 15px;
  line-height: 2.05;
  color: rgba(31, 31, 31, 0.65);
  margin: 0 0 30px;
}

.ffo-btn {
  display: inline-block;
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: #FFFDF7;
  background-color: #1F1F1F;
  border: 1px solid #1F1F1F;
  padding: 16px 40px;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.ffo-btn:hover {
  background-color: #C8A564;
  border-color: #C8A564;
  color: #1F1F1F;
}

/* ---------- 4. 无障碍：跟随系统减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .ffo-note,
  .ffo-btn { transition: none; }
  .ffo-note:hover { transform: none; }
}

/* ---------- 5. 页脚白色 logo ---------- */
.ffo-footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: 1.25rem;
  display: block;
}