/* ==========================================================================
   sections.css —— 各内容区块（卡片、维度、影响力、愿景、CTA、Footer）
   ========================================================================== */

/* ---------- 白色区块的极淡浮动光点装饰 ---------- */
.floating-dot {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  animation: float linear infinite;
  pointer-events: none;
  z-index: 0;
}

.floating-dot--amber {
  background: radial-gradient(circle, rgba(251, 191, 36, 0.12) 0%, transparent 70%);
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) translateX(0px);
    opacity: 0.3;
  }
  25% {
    transform: translateY(-20px) translateX(10px);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-10px) translateX(-15px);
    opacity: 0.4;
  }
  75% {
    transform: translateY(-30px) translateX(5px);
    opacity: 0.5;
  }
}

/* ---------- 区块 2：我们在做什么（3 列卡片） ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.card-grid--equal {
  align-items: stretch;
}

.card-grid--equal .feature-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-grid--equal .feature-card p {
  flex: 1;
}

.feature-card h3 {
  line-height: 1.35;
}

.feature-card p {
  line-height: 1.65;
}

.feature-card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--bg-white);
  transition:
    transform 0.2s var(--ease),
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--blue-200);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
}

.icon-box {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 12px;
}

.icon-box svg {
  width: 24px;
  height: 24px;
  stroke: #fff;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-box--blue {
  background: linear-gradient(135deg, var(--blue-500), var(--blue-600));
}
.icon-box--violet {
  background: linear-gradient(135deg, #a78bfa, var(--violet-500));
}
.icon-box--amber {
  background: linear-gradient(135deg, var(--amber-400), var(--amber-500));
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-card p {
  margin-top: 10px;
  color: var(--text-secondary);
  font-size: 14.5px;
}

/* ---------- 区块 3：评估维度（3 列卡片） ---------- */
.dimension-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.dimension-card {
  padding: 28px 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--bg-white);
  transition:
    transform 0.2s var(--ease),
    border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.dimension-card:hover {
  transform: translateY(-2px);
  border-color: var(--blue-200);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.07);
}

.dimension-card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 12px;
  background: var(--blue-50);
}

.dimension-card__icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--blue-600);
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.dimension-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.dimension-card p {
  margin-top: 10px;
  color: var(--text-secondary);
  font-size: 14.5px;
}

/* ---------- 区块 4：影响力数据（3 列指标） ---------- */
.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: 1;
}

.impact-card {
  padding: 30px 22px;
  text-align: center;
  border-radius: var(--radius-card);
  background: var(--bg-light);
  border: 1px solid var(--border);
}

.impact-card__num {
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 700;
  color: var(--blue-600);
  letter-spacing: -0.01em;
}

.impact-card__label {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.impact-card__desc {
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--text-tertiary);
  line-height: 1.5;
}

/* ---------- 区块 5：愿景引言 ---------- */
.vision-card {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 48px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--bg-white);
  text-align: center;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.05);
}

.vision-card__quote-mark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 88px;
  line-height: 0.5;
  color: var(--blue-200);
}

.vision-card blockquote {
  margin: 28px 0 0;
  font-family: Georgia, "Songti SC", "SimSun", serif;
  font-size: clamp(19px, 2.5vw, 24px);
  line-height: 1.7;
  color: var(--text-primary);
}

.vision-card cite {
  display: block;
  margin-top: 26px;
  font-style: normal;
  font-size: 14px;
  color: var(--text-tertiary);
}

/* ---------- 区块 6：底部 CTA + Footer ---------- */
.cta {
  text-align: center;
}

.cta__title {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  color: var(--text-primary);
}

.cta__sub {
  margin: 14px auto 36px;
  max-width: 520px;
  color: var(--text-secondary);
  font-size: 16px;
}

.footer {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-tertiary);
  font-size: 13.5px;
}

.footer strong {
  color: var(--text-secondary);
  font-weight: 600;
}