/* ===== 支持中心 FAQ 页面专属样式 ===== */
.page-faq {
  background: var(--light-bg);
  color: var(--dark-text);
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(212, 175, 55, 0.14), transparent 60%),
    linear-gradient(115deg, var(--deep-blue) 0%, var(--deep-blue-light) 100%);
  color: var(--white);
  padding: calc(var(--header-h) + 2rem) 0 3rem;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -8rem;
  top: 6rem;
  width: 22rem;
  height: 22rem;
  background: repeating-linear-gradient(-45deg, rgba(212, 175, 55, 0.16) 0 2px, transparent 2px 14px);
  transform: rotate(8deg);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: 2.5rem;
}

.page-faq .faq-hero .breadcrumb__link {
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-hero .breadcrumb__separator {
  color: rgba(255, 255, 255, 0.38);
}

.page-faq .faq-hero .breadcrumb__current {
  color: var(--gold-light);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-hero__tags .tag:not(.tag--emerald) {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-size: var(--font-size-h1);
  line-height: var(--line-height-heading);
  margin: 1rem 0;
  max-width: 14em;
}

.page-faq .faq-hero .lede {
  color: rgba(255, 255, 255, 0.88);
  max-width: 42em;
}

.page-faq .faq-hero__media {
  border: 1px solid rgba(212, 175, 55, 0.3);
  box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.28);
}

/* ---------- 热门问题标签 ---------- */
.page-faq .faq-hot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hot__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gold-light);
  margin-right: 0.25rem;
}

.page-faq .faq-hot__link {
  display: inline-flex;
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(212, 175, 55, 0.45);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.page-faq .faq-hot__link:hover,
.page-faq .faq-hot__link:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--deep-blue);
}

/* ---------- 支持布局两栏 ---------- */
.page-faq .support-layout {
  display: grid;
  gap: 2.5rem;
  padding-top: 3rem;
  padding-bottom: 4.5rem;
}

.page-faq .support-layout__aside {
  min-width: 0;
}

.page-faq .support-layout__aside .section-heading {
  display: block;
  margin-bottom: 1rem;
}

.page-faq .support-layout__aside .side-note {
  margin-top: 1.5rem;
}

.page-faq .support-layout__aside .side-note a {
  color: var(--deep-blue);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(212, 175, 55, 0.6);
  text-underline-offset: 3px;
}

/* ---------- FAQ 章节 ---------- */
.page-faq .faq-section {
  margin-bottom: 3rem;
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-section__title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: var(--font-size-h2);
  line-height: var(--line-height-heading);
  margin-bottom: 0.75rem;
  color: var(--deep-blue);
}

.page-faq .faq-section__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  height: 2.4rem;
  padding: 0 0.35rem;
  background: var(--deep-blue);
  color: var(--gold);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.875rem;
  clip-path: polygon(7px 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
}

.page-faq .faq-section__intro {
  color: var(--gray-text);
  margin-bottom: 1.25rem;
  padding-left: 3.15rem;
  line-height: var(--line-height-body);
  max-width: 45em;
}

/* ---------- FAQ 折叠项 ---------- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-item {
  background: var(--white);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-item[open] {
  border-color: rgba(212, 175, 55, 0.75);
  box-shadow: 0 8px 26px rgba(10, 27, 61, 0.12);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-weight: 600;
  font-size: 1.025rem;
  line-height: 1.45;
  color: var(--deep-blue);
  user-select: none;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::before {
  content: "?";
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--deep-blue);
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 0.85rem;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-faq .faq-item[open] summary::before {
  background: var(--gold);
  color: var(--deep-blue);
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex-shrink: 0;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--gray-text);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--gold);
}

.page-faq .faq-item__body {
  padding: 0 1.25rem 1.2rem 3.1rem;
  color: var(--gray-text);
  line-height: var(--line-height-body);
  font-size: 0.95rem;
}

.page-faq .faq-item__body p {
  margin-bottom: 0.5rem;
}

.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}

@keyframes pageFaqFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item[open] .faq-item__body {
  animation: pageFaqFadeIn 0.3s ease;
}

/* ---------- 新用户必读 ---------- */
.page-faq .faq-welcome-grid {
  display: grid;
  gap: 1.75rem;
}

.page-faq .faq-welcome-grid__media {
  border: 1px solid rgba(212, 175, 55, 0.35);
  box-shadow: var(--shadow-card);
  max-width: 420px;
}

.page-faq .faq-welcome-grid__media img {
  object-fit: cover;
}

/* ---------- 数据更新深蓝带 ---------- */
.page-faq .faq-section--blue {
  background:
    linear-gradient(135deg, rgba(212, 175, 55, 0.08), transparent 50%),
    var(--deep-blue);
  color: var(--white);
  padding: 2rem 1.5rem;
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-section--blue .faq-section__title {
  color: var(--white);
}

.page-faq .faq-section--blue .faq-section__num {
  background: var(--gold);
  color: var(--deep-blue);
}

.page-faq .faq-section--blue .faq-section__intro {
  color: rgba(255, 255, 255, 0.78);
}

.page-faq .faq-item--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: none;
}

.page-faq .faq-item--ghost summary {
  color: var(--white);
}

.page-faq .faq-item--ghost summary::before {
  background: var(--gold);
  color: var(--deep-blue);
}

.page-faq .faq-item--ghost .faq-item__body {
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .faq-item--ghost[open] {
  border-color: rgba(212, 175, 55, 0.8);
}

.page-faq .faq-item--ghost[open] summary::after {
  color: var(--gold);
}

/* ---------- 没找到答案 ---------- */
.page-faq .faq-help {
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-faq .faq-help .clipped-panel {
  padding: 2rem 1.5rem;
}

.page-faq .faq-help__title {
  font-family: var(--font-display);
  font-size: var(--font-size-h3);
  color: var(--deep-blue);
  margin-bottom: 0.75rem;
}

.page-faq .faq-help p {
  color: var(--gray-text);
  line-height: var(--line-height-body);
  margin-bottom: 1rem;
}

.page-faq .faq-help__list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--dark-text);
  font-size: 0.95rem;
}

.page-faq .faq-help__list a {
  color: var(--deep-blue);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: rgba(212, 175, 55, 0.6);
  text-underline-offset: 3px;
}

.page-faq .faq-help__list a:hover {
  color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding-bottom: 4rem;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 3rem;
  }

  .page-faq .faq-welcome-grid {
    grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .support-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(2.5rem, 4vw, 4rem);
    align-items: start;
    padding-top: 3.5rem;
  }

  .page-faq .support-layout__aside {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }
}