/* ========================================
   page-faq – 问答中心专属样式
   移动端优先 + 桌面增强
   所有选择器限定在 .page-faq 内
   ======================================== */

/* ─── 作用域变量 ─── */
.page-faq {
  --faq-accent: var(--clr-accent-red);
  --faq-accent-soft: var(--clr-hover-tint);
  --faq-card-radius: 1rem;
  --faq-transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --faq-max-width: 780px;
  display: block;
}

/* ─── 面包屑 ─── */
.page-faq .faq-breadcrumb {
  padding: 0.75rem 0 0;
  font-size: var(--fs-small);
  color: var(--clr-secondary-text);
}
.page-faq .faq-breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.page-faq .faq-breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.page-faq .faq-breadcrumb li + li::before {
  content: "/";
  color: var(--clr-divider);
  font-size: 0.85em;
}
.page-faq .faq-breadcrumb a {
  color: var(--clr-accent-blue);
  text-decoration: none;
  transition: color 0.2s;
}
.page-faq .faq-breadcrumb a:hover,
.page-faq .faq-breadcrumb a:focus-visible {
  color: var(--clr-accent-red);
  text-decoration: underline;
}
.page-faq .faq-breadcrumb [aria-current="page"] {
  color: var(--clr-primary-text);
  font-weight: 500;
}

/* ─── 首屏 ─── */
.page-faq .faq-hero {
  background-color: var(--clr-primary-bg);
  padding: 2rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 90%, rgba(204, 41, 54, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 90% 10%, rgba(30, 58, 95, 0.05) 0%, transparent 50%);
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero__text {
  flex: 1 1 auto;
  max-width: var(--faq-max-width);
  text-align: center;
}
.page-faq .faq-hero h1 {
  font-family: var(--ff-heading);
  font-size: var(--fs-h1);
  font-weight: 800;
  line-height: var(--lh-headings);
  color: var(--clr-primary-text);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
}
.page-faq .faq-hero h1::after {
  content: "";
  display: block;
  width: 3.5rem;
  height: 4px;
  background: var(--faq-accent);
  margin: 0.5rem auto 0;
  border-radius: 2px;
}
.page-faq .faq-hero__subtitle {
  font-size: var(--fs-body);
  color: var(--clr-secondary-text);
  line-height: var(--lh-body);
  margin: 0.75rem 0 1.5rem;
  max-width: 36em;
  margin-left: auto;
  margin-right: auto;
}
.page-faq .faq-search {
  position: relative;
  max-width: 480px;
  margin: 0 auto 0.5rem;
}
.page-faq .faq-search__input {
  width: 100%;
  padding: 0.85rem 1.2rem 0.85rem 3rem;
  font-family: var(--ff-body);
  font-size: 1rem;
  border: 2px solid var(--clr-divider);
  border-radius: 3rem;
  background-color: var(--clr-card-bg);
  color: var(--clr-primary-text);
  transition: border-color 0.25s, box-shadow 0.25s;
  outline: none;
  box-sizing: border-box;
}
.page-faq .faq-search__input:focus {
  border-color: var(--faq-accent);
  box-shadow: 0 0 0 3px var(--faq-accent-soft);
}
.page-faq .faq-search__input::placeholder {
  color: var(--clr-secondary-text);
  opacity: 0.65;
}
.page-faq .faq-search__icon {
  position: absolute;
  left: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.35rem;
  color: var(--clr-secondary-text);
  pointer-events: none;
  line-height: 1;
}
.page-faq .faq-hero__hint {
  font-size: var(--fs-small);
  color: var(--clr-secondary-text);
  opacity: 0.75;
  margin: 0.25rem 0 0;
}
.page-faq .faq-hero__graphic {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-faq .faq-hero__img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 50%;
  background: var(--clr-card-bg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
  object-fit: cover;
}

/* ─── 通用区块 ─── */
.page-faq .faq-section {
  padding: 2.5rem 0;
}
.page-faq .faq-section + .faq-section {
  border-top: 1px solid var(--clr-divider);
}
.page-faq .faq-section__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-faq .faq-section__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--clr-accent-soft);
  object-fit: cover;
}
.page-faq .faq-section__title {
  font-family: var(--ff-heading);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-headings);
  color: var(--clr-primary-text);
  margin: 0;
  position: relative;
}
.page-faq .faq-section__title::after {
  content: "";
  display: inline-block;
  width: 1.5rem;
  height: 3px;
  background: var(--faq-accent);
  margin-left: 0.75rem;
  vertical-align: middle;
  border-radius: 2px;
}

/* ─── 问题列表 ─── */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: var(--faq-max-width);
}

/* ─── 单个问题 ─── */
.page-faq .faq-item {
  background-color: var(--clr-card-bg);
  border-radius: var(--faq-card-radius);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  border: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
  overflow: hidden;
}
.page-faq .faq-item:hover {
  border-color: var(--clr-divider);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}
.page-faq .faq-item[open] {
  border-color: var(--faq-accent-soft);
  box-shadow: 0 4px 20px rgba(204, 41, 54, 0.06);
}
.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  -webkit-user-select: none;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--clr-primary-bg);
  object-fit: cover;
  transition: transform 0.3s;
}
.page-faq .faq-item:hover .faq-item__icon {
  transform: scale(1.05);
}
.page-faq .faq-item__question {
  flex: 1 1 auto;
  font-family: var(--ff-heading);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--clr-primary-text);
}
.page-faq .faq-item__arrow {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  position: relative;
  transition: transform var(--faq-transition);
}
.page-faq .faq-item__arrow::before,
.page-faq .faq-item__arrow::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--faq-transition);
}
.page-faq .faq-item__arrow::before {
  width: 2px;
  height: 100%;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
}
.page-faq .faq-item__arrow::after {
  width: 100%;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}
.page-faq .faq-item[open] .faq-item__arrow {
  transform: rotate(45deg);
}
.page-faq .faq-item__summary:hover .faq-item__arrow {
  color: var(--faq-accent);
}
.page-faq .faq-item__answer {
  padding: 0 1.25rem 1.25rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--clr-secondary-text);
  animation: faqFadeIn 0.4s ease-out;
}
.page-faq .faq-item__answer p {
  margin: 0;
  max-width: 60ch;
}
@keyframes faqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── 联系方式区块 ─── */
.page-faq .faq-contact {
  background-color: var(--clr-primary-bg);
  padding: 3rem 0 3.5rem;
  margin-top: 1rem;
  position: relative;
}
.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--clr-accent-red), var(--clr-gold), var(--clr-accent-blue));
}
.page-faq .faq-contact__title {
  font-family: var(--ff-heading);
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-headings);
  color: var(--clr-primary-text);
  margin: 0 0 0.5rem;
  text-align: center;
}
.page-faq .faq-contact__desc {
  text-align: center;
  font-size: var(--fs-body);
  color: var(--clr-secondary-text);
  line-height: var(--lh-body);
  max-width: 36em;
  margin: 0 auto 2rem;
}
.page-faq .faq-contact__cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: var(--faq-max-width);
  margin: 0 auto;
}
.page-faq .faq-contact__card {
  background-color: var(--clr-card-bg);
  border-radius: var(--faq-card-radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--clr-divider);
  transition: transform 0.25s, box-shadow 0.25s;
}
.page-faq .faq-contact__card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.07);
  border-color: var(--faq-accent-soft);
}
.page-faq .faq-contact__card-icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--faq-accent);
  background: var(--faq-accent-soft);
  border-radius: 50%;
}
.page-faq .faq-contact__card-label {
  font-family: var(--ff-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--clr-primary-text);
  margin: 0;
  min-width: 5.5em;
}
.page-faq .faq-contact__link {
  color: var(--clr-accent-blue);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}
.page-faq .faq-contact__link:hover,
.page-faq .faq-contact__link:focus-visible {
  color: var(--faq-accent);
  text-decoration: underline;
}
.page-faq .faq-contact__text {
  margin: 0;
  color: var(--clr-secondary-text);
  font-size: var(--fs-body);
}
.page-faq .faq-contact__note {
  text-align: center;
  font-size: var(--fs-small);
  color: var(--clr-secondary-text);
  opacity: 0.8;
  margin: 1.5rem auto 0;
  max-width: 36em;
  border-top: 1px solid var(--clr-divider);
  padding-top: 1.25rem;
}

/* ─── 辅助类 ─── */
.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.page-faq .container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  box-sizing: border-box;
}

/* ========================================
   桌面端增强 (min-width: 768px)
   ======================================== */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 3.5rem 0 4rem;
  }
  .page-faq .faq-hero__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 2.5rem;
  }
  .page-faq .faq-hero__text {
    text-align: left;
  }
  .page-faq .faq-hero h1::after {
    margin: 0.5rem 0 0;
  }
  .page-faq .faq-hero__subtitle {
    margin-left: 0;
    margin-right: 0;
  }
  .page-faq .faq-search {
    margin: 0 0 0.5rem;
  }
  .page-faq .faq-hero__graphic {
    flex: 0 0 220px;
  }
  .page-faq .faq-hero__img {
    width: 220px;
    height: 220px;
  }
  .page-faq .faq-section {
    padding: 3.5rem 0;
  }
  .page-faq .faq-section__header {
    margin-bottom: 2rem;
  }
  .page-faq .faq-item__summary {
    padding: 1.25rem 1.75rem;
  }
  .page-faq .faq-item__question {
    font-size: 1.1rem;
  }
  .page-faq .faq-item__answer {
    padding: 0 1.75rem 1.5rem 5.75rem;
  }
  .page-faq .faq-contact {
    padding: 4rem 0 4.5rem;
  }
  .page-faq .faq-contact__cards {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  .page-faq .faq-contact__card {
    flex: 1 1 240px;
    max-width: 320px;
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
  }
  .page-faq .faq-contact__card-icon {
    width: 3rem;
    height: 3rem;
    font-size: 1.75rem;
  }
  .page-faq .faq-contact__card-label {
    min-width: auto;
  }
}

/* ========================================
   大桌面 (min-width: 1024px)
   ======================================== */
@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding: 4.5rem 0 5rem;
  }
  .page-faq .faq-hero__graphic {
    flex: 0 0 260px;
  }
  .page-faq .faq-hero__img {
    width: 260px;
    height: 260px;
  }
  .page-faq .faq-section__title {
    font-size: calc(var(--fs-h2) * 1.05);
  }
  .page-faq .faq-item__question {
    font-size: 1.15rem;
  }
  .page-faq .faq-contact__card {
    padding: 2.25rem 2rem;
  }
}

.page-faq {
  --clr-accent-soft: transparent;
}