/* ===== page-faq 专属样式 ===== */
.page-faq {
  --faq-block-pad: 3rem 2rem;
  --faq-accent-bar: 4px solid var(--color-green);
  --faq-summary-bg: rgba(192,192,192,0.12);
  --faq-summary-hover: rgba(255,69,0,0.08);
  font-family: var(--font-body);
  background: var(--color-cream);
  color: var(--color-dark-brown);
  position: relative;
  min-height: 100vh;
}

/* ===== 首屏扫描区 ===== */
.faq-hero-scan {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 4rem 2rem 3rem;
  background: linear-gradient(135deg, var(--color-off-white) 0%, var(--color-cream) 70%);
  border-bottom: 2px solid var(--color-silver);
  position: relative;
  overflow: hidden;
}
.faq-hero-scan::before {
  content: "";
  position: absolute;
  top: -40px; right: -40px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: rgba(46,139,87,0.08);
  pointer-events: none;
}
.faq-hero-narrow {
  flex: 1 1 400px;
  max-width: 600px;
  position: relative;
  z-index: 1;
}
.faq-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3rem);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  margin: 0 0 1.2rem;
  line-height: 1;
}
.faq-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 2px solid var(--color-red);
  border-radius: 0;
  box-shadow: var(--shadow-soft);
  transition: box-shadow var(--transition-med);
}
.faq-search-wrap:focus-within {
  box-shadow: var(--shadow-strong);
}
.faq-search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.9rem 1rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--color-charcoal);
  outline: none;
}
.faq-search-input::placeholder {
  color: var(--color-silver);
  opacity: 0.8;
}
.faq-search-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  cursor: default;
}
.faq-hero-note {
  margin: 1rem 0 0;
  font-size: 0.95rem;
  color: var(--color-charcoal);
  opacity: 0.75;
}
.faq-hero-deco {
  flex: 0 0 100px;
  height: 100px;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 8px,
    var(--color-red) 8px,
    var(--color-red) 10px,
    transparent 10px,
    transparent 18px
  );
  opacity: 0.35;
}

/* ===== 通用区块 ===== */
.faq-block {
  padding: var(--faq-block-pad);
}
.faq-block-alt {
  background: var(--color-off-white);
  border-top: 1px solid var(--color-silver);
  border-bottom: 1px solid var(--color-silver);
}
.faq-block-inner {
  max-width: 960px;
  margin: 0 auto;
}
.faq-block-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1.5rem 2rem;
  margin-bottom: 2rem;
}
.faq-block-heading {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  line-height: 1.2;
  flex: 1 1 200px;
}
.faq-block-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  font-family: var(--font-ui);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  flex-shrink: 0;
}
.bg-green { background: var(--color-green); }
.bg-red { background: var(--color-red); }
.faq-block-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 2px solid var(--color-silver);
  box-shadow: var(--shadow-soft);
  background: var(--color-silver);
}

/* ===== 手风琴 ===== */
.faq-accordion {
  display: flex;
  flex-direction: column;
  border-top: 2px solid var(--color-silver);
}
.faq-item {
  border-bottom: 1px solid rgba(192,192,192,0.5);
  background: transparent;
  transition: background var(--transition-med);
}
.faq-item[open] {
  background: var(--glass-bg);
}
.faq-q {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 1.2rem 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--faq-summary-bg);
  transition: background var(--transition-fast), padding-left var(--transition-fast);
  position: relative;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-q::before {
  content: "Q";
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-red);
  width: 1.6rem;
  text-align: center;
  flex-shrink: 0;
}
.faq-q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-green);
  transition: transform var(--transition-med);
}
.faq-item[open] .faq-q::after {
  content: "−";
  transform: rotate(180deg);
  color: var(--color-red);
}
.faq-q:hover {
  background: var(--faq-summary-hover);
  padding-left: 1.4rem;
}
.faq-item[open] .faq-q {
  background: var(--faq-summary-hover);
  padding-left: 1.4rem;
}
.faq-a {
  padding: 0.5rem 1rem 1.5rem 2.6rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-charcoal);
  opacity: 0;
  animation: faq-fade-in 0.35s ease forwards;
}
@keyframes faq-fade-in {
  to { opacity: 1; }
}
.faq-a p { margin: 0 0 0.6rem; }
.faq-a p:last-child { margin-bottom: 0; }
.faq-a a {
  color: var(--color-green);
  text-decoration: underline;
  font-weight: 600;
  transition: color var(--transition-fast);
}
.faq-a a:hover { color: var(--color-red); }

/* ===== 移动端优先 ===== */
@media (width <= 768px) {
  .page-faq {
    --faq-block-pad: 2.5rem 1.2rem;
  }
  .faq-hero-scan {
    padding: 2.5rem 1.2rem 2rem;
    gap: 1.5rem;
  }
  .faq-hero-deco {
    display: none;
  }
  .faq-search-wrap {
    border-width: 2px;
  }
  .faq-search-input {
    padding: 0.75rem 0.6rem;
    font-size: 0.95rem;
  }
  .faq-block-header {
    flex-direction: column;
    gap: 1rem;
  }
  .faq-block-heading {
    font-size: 1.4rem;
  }
  .faq-block-img {
    max-width: 100%;
  }
  .faq-q {
    font-size: 1rem;
    padding: 1rem 0.8rem;
  }
  .faq-a {
    padding: 0.5rem 0.8rem 1.2rem 2rem;
  }
  .faq-title {
    font-size: 1.8rem;
  }
}

/* ===== 桌面端大屏调整 ===== */
@media (width >= 1200px) {
  .faq-block-inner {
    max-width: 1024px;
  }
  .faq-block-heading {
    font-size: 2rem;
  }
  .faq-q {
    font-size: 1.2rem;
    padding: 1.4rem 1.6rem;
  }
  .faq-a {
    padding: 0.8rem 1.6rem 1.8rem 3.2rem;
    font-size: 1rem;
  }
}