/* ===== Aozhong P400 Expertise Section ===== */
.az-p400exp-section {
  width: 100%;
  padding: 40px 20px;
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
}

.az-p400exp-container {
  max-width: 1180px;
  margin: 0 auto;
}

.az-p400exp-head {
  max-width: 900px;
  margin-bottom: 46px;
}

.az-p400exp-eyebrow {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  font-weight: 700;
  color: #9a5b24;
}

.az-p400exp-head h2 {
  margin: 0 0 16px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
  font-weight: 800;
  color: #101820;
}

.az-p400exp-head p {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: #5f6b76;
}

/* Layout */
.az-p400exp-layout {
  display: grid;
  grid-template-columns: 35% 65%;
  gap: 24px;
  align-items: stretch;
}

/* Left Main Card */
.az-p400exp-main-card {
  position: relative;
  overflow: hidden;
  padding: 38px 32px;
  border-radius: 26px;
  background:
    linear-gradient(145deg, rgba(16,24,32,0.97), rgba(31,43,54,0.97)),
    radial-gradient(circle at top right, rgba(154,91,36,0.36), transparent 42%);
  color: #ffffff;
  box-shadow: 0 24px 60px rgba(16,24,32,0.22);
  box-sizing: border-box;
}

.az-p400exp-badge {
  width: 98px;
  height: 98px;
  margin-bottom: 28px;
  border-radius: 26px;
  background: linear-gradient(135deg, #b87434, #7b431b);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 24px;
  line-height: 1;
  font-weight: 900;
  box-shadow: 0 18px 38px rgba(154,91,36,0.35);
}

.az-p400exp-main-card h3 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.15;
  font-weight: 850;
}

.az-p400exp-main-card > p {
  margin: 0 0 26px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(255,255,255,0.82);
}

.az-p400exp-focus-list {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.az-p400exp-focus-item {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.12);
  color: #ffffff;
  font-size: 14px;
  line-height: 1.4;
  font-weight: 750;
}

.az-p400exp-note {
  padding: 20px 22px;
  border-radius: 18px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.82);
  font-size: 15.5px;
  line-height: 1.7;
}

.az-p400exp-note strong {
  color: #ffffff;
}

/* Right Cards */
.az-p400exp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.az-p400exp-card {
  position: relative;
  min-height: 340px;
  padding: 30px 28px 28px;
  background: rgba(255,255,255,0.96);
  border: 1px solid rgba(16,24,32,0.08);
  border-radius: 24px;
  box-shadow: 0 18px 45px rgba(16,24,32,0.08);
  box-sizing: border-box;
  transition:
    transform 0.35s ease,
    box-shadow 0.35s ease,
    border-color 0.35s ease,
    background 0.35s ease;
}

.az-p400exp-card:hover {
  transform: translateY(-8px) scale(1.03);
  border-color: rgba(154,91,36,0.30);
  background: #ffffff;
  box-shadow: 0 30px 70px rgba(16,24,32,0.16);
  z-index: 5;
}

/* Featured Card */
.az-p400exp-featured {
  background:
    linear-gradient(145deg, rgba(16,24,32,0.97), rgba(31,43,54,0.97)),
    radial-gradient(circle at top right, rgba(154,91,36,0.36), transparent 42%);
  color: #ffffff;
  box-shadow: 0 24px 60px rgba(16,24,32,0.22);
}

.az-p400exp-featured:hover {
  transform: translateY(-5px) scale(1.015);
  background:
    linear-gradient(145deg, rgba(16,24,32,0.97), rgba(31,43,54,0.97)),
    radial-gradient(circle at top right, rgba(154,91,36,0.42), transparent 42%);
  box-shadow: 0 26px 58px rgba(16,24,32,0.22);
}

.az-p400exp-label {
  display: inline-block;
  margin-bottom: 12px;
  color: #9a5b24;
  font-size: 12px;
  line-height: 1;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  font-weight: 800;
}

.az-p400exp-featured .az-p400exp-label,
.az-p400exp-featured:hover .az-p400exp-label {
  color: rgba(255,255,255,0.72);
}

.az-p400exp-card h3 {
  margin: 0 0 16px;
  color: #101820;
  font-size: 21px;
  line-height: 1.28;
  font-weight: 850;
}

.az-p400exp-featured h3,
.az-p400exp-featured:hover h3 {
  color: #ffffff;
}

.az-p400exp-card p {
  margin: 0 0 18px;
  color: #5f6b76;
  font-size: 15.5px;
  line-height: 1.72;
}

.az-p400exp-featured p,
.az-p400exp-featured:hover p {
  color: rgba(255,255,255,0.82);
}

/* Grit Flow */
.az-p400exp-chip-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.az-p400exp-chip-row span {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.78);
  font-size: 12.5px;
  line-height: 1;
  font-weight: 850;
}

.az-p400exp-chip-row span.active {
  background: linear-gradient(135deg, #b87434, #7b431b);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(154,91,36,0.28);
}

.az-p400exp-chip-row i {
  flex: 1;
  min-width: 12px;
  height: 1px;
  background: rgba(255,255,255,0.22);
}

/* Compare */
.az-p400exp-compare {
  display: grid;
  gap: 14px;
  margin-bottom: 18px;
}

.az-p400exp-compare-item {
  padding: 16px 16px;
  border-radius: 16px;
  background: #f7f9fb;
  border: 1px solid rgba(16,24,32,0.08);
}

.az-p400exp-compare-item strong {
  display: block;
  margin-bottom: 8px;
  color: #101820;
  font-size: 15px;
  line-height: 1.3;
  font-weight: 850;
}

.az-p400exp-compare-item p {
  margin: 0;
  color: #5f6b76;
  font-size: 14.5px;
  line-height: 1.6;
}

.az-p400exp-card:hover .az-p400exp-compare-item {
  border-color: rgba(154,91,36,0.18);
  background: rgba(154,91,36,0.05);
}

/* Warning / Tip */
.az-p400exp-warning {
  padding: 16px 18px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(154,91,36,0.10), rgba(255,255,255,0.9));
  border: 1px solid rgba(154,91,36,0.16);
  color: #5f3a21;
  font-size: 14.5px;
  line-height: 1.65;
  font-weight: 700;
}

.az-p400exp-featured .az-p400exp-warning {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.14);
  color: rgba(255,255,255,0.82);
}

/* Tags */
.az-p400exp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.az-p400exp-tags span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 12px;
  border-radius: 999px;
  background: #f7f9fb;
  border: 1px solid rgba(16,24,32,0.08);
  color: #34414d;
  font-size: 13px;
  line-height: 1.35;
  font-weight: 750;
  transition: all 0.25s ease;
}

.az-p400exp-card:hover .az-p400exp-tags span {
  border-color: rgba(154,91,36,0.18);
  background: rgba(154,91,36,0.06);
  color: #101820;
}

/* Entrance Animation */
.az-p400exp-main-card,
.az-p400exp-card {
  opacity: 0;
  transform: translateY(24px);
  animation: azP400ExpFadeUp 0.75s ease forwards;
}

.az-p400exp-main-card { animation-delay: 0.05s; }
.az-p400exp-card:nth-child(1) { animation-delay: 0.12s; }
.az-p400exp-card:nth-child(2) { animation-delay: 0.20s; }
.az-p400exp-card:nth-child(3) { animation-delay: 0.28s; }
.az-p400exp-card:nth-child(4) { animation-delay: 0.36s; }

@keyframes azP400ExpFadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tablet */
@media (max-width: 1024px) {
  .az-p400exp-layout {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 680px) {
  .az-p400exp-section {
    padding: 40px 16px;
  }

  .az-p400exp-head {
    margin-bottom: 32px;
  }

  .az-p400exp-head p {
    font-size: 15.5px;
  }

  .az-p400exp-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .az-p400exp-main-card,
  .az-p400exp-card {
    border-radius: 20px;
    padding: 28px 22px;
    min-height: auto;
  }

  .az-p400exp-main-card h3 {
    font-size: 26px;
  }

  .az-p400exp-card h3 {
    font-size: 20px;
  }

  .az-p400exp-badge {
    width: 88px;
    height: 88px;
    font-size: 21px;
    border-radius: 22px;
  }

  .az-p400exp-card:hover {
    transform: translateY(-5px) scale(1.015);
  }

  .az-p400exp-featured:hover {
    transform: translateY(-4px) scale(1.01);
  }
}