.page-faq {
  --faq-shadow: 8px 8px 0 rgba(11, 45, 30, 0.08);
  --faq-card-border: 2px solid var(--line-gray-300);
}

/* ===== Hero 首屏 ===== */
.page-faq .faq-hero {
  background: var(--deep-green-950);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 2.5rem) 0 0;
}
.page-faq .faq-hero__copy {
  position: relative;
  z-index: 1;
  max-width: 860px;
}
.page-faq .faq-hero__copy::before {
  content: "";
  position: absolute;
  left: -4rem;
  top: -2.5rem;
  width: 14rem;
  height: 14rem;
  background: rgba(255, 90, 54, 0.16);
  transform: rotate(9deg);
  z-index: -1;
  pointer-events: none;
}
.page-faq .faq-hero__copy::after {
  content: "";
  position: absolute;
  right: -2rem;
  bottom: 0.5rem;
  width: 8rem;
  height: 8rem;
  background: rgba(47, 168, 83, 0.18);
  transform: rotate(-12deg);
  z-index: -1;
  pointer-events: none;
}
.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 2.25rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.page-faq .faq-hero .breadcrumbs a {
  color: var(--soft-green-300);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--accent-orange-500);
}
.page-faq .faq-hero .breadcrumbs [aria-current="page"] {
  color: var(--white);
}
.page-faq .faq-hero__kicker {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  color: var(--accent-orange-500);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.page-faq .faq-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.9rem);
  line-height: 1.15;
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}
.page-faq .faq-hero__lead {
  color: var(--soft-green-300);
  max-width: 42rem;
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 2rem;
}
.page-faq .faq-search {
  position: relative;
  max-width: 620px;
  margin-bottom: 3rem;
}
.page-faq .faq-search input {
  width: 100%;
  border: 2px solid var(--soft-green-300);
  background: var(--white);
  color: var(--ink-gray-900);
  font: inherit;
  padding: 0.95rem 3rem 0.95rem 1.25rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.page-faq .faq-search input::placeholder {
  color: var(--muted-gray-600);
}
.page-faq .faq-search input:focus {
  border-color: var(--accent-orange-500);
  box-shadow: 4px 4px 0 var(--primary-green-700);
}
.page-faq .faq-search__icon {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary-green-700);
  pointer-events: none;
}
.page-faq .faq-search__hint {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--soft-green-300);
}
.page-faq .faq-hero__media {
  position: relative;
  z-index: 1;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  border-top: 5px solid var(--accent-orange-500);
  border-bottom: 2px solid var(--soft-green-300);
  background: var(--primary-green-700);
}
.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: center;
}
.page-faq .faq-hero__speedline {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: repeating-linear-gradient(135deg, transparent 0 18px, rgba(255, 90, 54, 0.07) 18px 20px, transparent 20px 38px);
  pointer-events: none;
}

/* ===== 主体区域 ===== */
.page-faq .faq-main {
  background: var(--pale-green-100);
  padding: 3rem 0 5rem;
}
.page-faq .faq-main__grid {
  display: grid;
  gap: 2.25rem;
  align-items: start;
}

/* ===== 侧边栏 ===== */
.page-faq .faq-side {
  display: grid;
  gap: 1.5rem;
}
.page-faq .faq-side__panel {
  background: var(--white);
  border: var(--faq-card-border);
  border-top: 6px solid var(--primary-green-700);
  padding: 1.5rem;
  box-shadow: var(--faq-shadow);
}
.page-faq .faq-side__kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-orange-500);
  margin-bottom: 0.4rem;
}
.page-faq .faq-side__title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
}
.page-faq .faq-side__nav {
  display: grid;
  gap: 0.35rem;
}
.page-faq .faq-side__nav a {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.7rem 0.75rem;
  color: var(--ink-gray-900);
  text-decoration: none;
  border-left: 3px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.page-faq .faq-side__nav a:hover {
  background: var(--pale-green-100);
  border-left-color: var(--accent-orange-500);
  color: var(--primary-green-700);
}
.page-faq .faq-side__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-orange-500);
}
.page-faq .faq-side__support {
  background: var(--deep-green-950);
  color: var(--white);
  border: 2px solid var(--primary-green-700);
  box-shadow: var(--faq-shadow);
}
.page-faq .faq-side__support img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 3px solid var(--accent-orange-500);
}
.page-faq .faq-side__support-body {
  padding: 1.25rem;
}
.page-faq .faq-side__support-body h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.page-faq .faq-side__support-note {
  color: var(--soft-green-300);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.page-faq .faq-side__contact {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
  display: grid;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--pale-green-100);
}
.page-faq .faq-side__contact li::before {
  content: "→";
  color: var(--accent-orange-500);
  margin-right: 0.5rem;
  font-family: var(--font-mono);
}

/* ===== FAQ 内容区 ===== */
.page-faq .faq-content {
  display: grid;
  gap: 2.5rem;
}
.page-faq .faq-group {
  background: var(--white);
  border: var(--faq-card-border);
  border-left: 6px solid var(--primary-green-700);
  box-shadow: var(--faq-shadow);
  padding: 1.5rem;
}
.page-faq .faq-group__head {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  border-bottom: 2px solid var(--pale-green-100);
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
}
.page-faq .faq-group__index {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--accent-orange-500);
  background: var(--deep-green-950);
  padding: 0.45rem 0.65rem;
  border: 2px solid var(--deep-green-950);
  box-shadow: 4px 4px 0 var(--soft-green-300);
  flex-shrink: 0;
}
.page-faq .faq-group__head h2 {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  line-height: 1.3;
}
.page-faq .faq-group__head p {
  color: var(--muted-gray-600);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0;
}
.page-faq .faq-group__body {
  display: grid;
  gap: 1rem;
}

/* ===== 手风琴条目 ===== */
.page-faq .faq-item {
  background: var(--pale-green-100);
  border-left: 4px solid var(--primary-green-700);
  transition: background 0.25s, border-color 0.25s;
}
.page-faq .faq-item[open] {
  background: var(--white);
  border-left-color: var(--accent-orange-500);
}
.page-faq .faq-item summary {
  list-style: none;
  position: relative;
  cursor: pointer;
  padding: 1.1rem 3.5rem 1.1rem 1.25rem;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--ink-gray-900);
  transition: color 0.2s;
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover {
  color: var(--primary-green-700);
}
.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--accent-orange-500);
  outline-offset: -3px;
}
.page-faq .faq-item__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-orange-500);
  background: var(--white);
  border: 1px solid var(--soft-green-300);
  padding: 0.18rem 0.42rem;
  line-height: 1.4;
  flex-shrink: 0;
  margin-top: 0.12rem;
}
.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.15rem;
  top: 1rem;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--soft-green-300);
  background: var(--white);
  color: var(--accent-orange-500);
  transition: transform 0.25s, border-color 0.25s, background 0.25s, color 0.25s;
}
.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  border-color: var(--accent-orange-500);
  background: var(--accent-orange-500);
  color: var(--white);
}
.page-faq .faq-item__body {
  padding: 0 1.5rem 1.25rem 1.25rem;
  color: var(--muted-gray-600);
  font-size: 0.92rem;
  line-height: 1.75;
}
.page-faq .faq-item__body p {
  margin: 0 0 0.5rem;
}
.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__body a {
  color: var(--primary-green-700);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: var(--soft-green-300);
  text-underline-offset: 3px;
  transition: color 0.2s, text-decoration-color 0.2s;
}
.page-faq .faq-item__body a:hover {
  color: var(--accent-orange-500);
  text-decoration-color: var(--accent-orange-500);
}

/* ===== 联系客服分组 ===== */
.page-faq .faq-group--contact {
  border-left-color: var(--accent-orange-500);
}
.page-faq .faq-contact-grid {
  display: grid;
  gap: 1rem;
}
.page-faq .faq-contact-cell {
  border: 2px solid var(--soft-green-300);
  background: var(--pale-green-100);
  padding: 1rem;
  display: grid;
  gap: 0.35rem;
}
.page-faq .faq-contact-cell__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-orange-500);
}
.page-faq .faq-contact-cell__value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink-gray-900);
  font-size: 0.95rem;
  line-height: 1.5;
  word-break: break-word;
}
.page-faq .faq-contact-note {
  margin: 1.25rem 0 0;
  padding-top: 1rem;
  border-top: 2px dashed var(--line-gray-300);
  font-size: 0.9rem;
  color: var(--muted-gray-600);
}
.page-faq .faq-contact-note a {
  color: var(--primary-green-700);
  font-weight: 800;
}

/* ===== 平板及以上 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 3.5rem);
  }
  .page-faq .faq-hero h1 {
    font-size: 2.5rem;
  }
  .page-faq .faq-hero__media img {
    height: 300px;
  }
  .page-faq .faq-side {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .page-faq .faq-group {
    padding: 2rem;
  }
  .page-faq .faq-group__head h2 {
    font-size: 1.6rem;
  }
  .page-faq .faq-contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (min-width: 1024px) {
  .page-faq .faq-main__grid {
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 3rem;
  }
  .page-faq .faq-side {
    grid-template-columns: 1fr;
    position: sticky;
    top: calc(var(--header-h) + 2rem);
  }
  .page-faq .faq-hero__media img {
    height: 400px;
  }
}