/* ===== 支持中心 FAQ 页面专属样式 ===== */

.page-faq {
  --faq-ink: #111111;
  --faq-navy: #0A2342;
  --faq-yellow: #F5A623;
  --faq-orange: #FF6B35;
  --faq-muted: #F2F2F2;
  --faq-line: #D0D0D0;
  --faq-rime: #D6E4F0;
  color: var(--faq-ink);
  font-family: var(--font-body);
  background: #FFFFFF;
}

/* 首屏深蓝带 */
.page-faq .faq-hero {
  background: linear-gradient(152deg, #0A2342 8%, #14345E 68%, #1E4979 100%);
  padding: 112px 0 48px;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 58%;
  top: -60px;
  width: 280px;
  height: 280px;
  border: 2px solid rgba(245, 166, 35, .45);
  transform: rotate(18deg);
  border-radius: 12px;
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb__link {
  color: var(--faq-rime);
}

.page-faq .faq-hero .breadcrumb__item {
  color: rgba(255, 255, 255, .85);
}

.page-faq .faq-hero .breadcrumb__separator {
  color: rgba(255, 255, 255, .5);
}

.page-faq .faq-hero .page-head {
  padding: 32px 0 8px;
  position: relative;
  z-index: 1;
}

.page-faq .page-head__index {
  color: var(--faq-yellow);
  font-family: var(--font-title);
  font-size: 52px;
  line-height: 1;
  margin-bottom: 12px;
}

.page-faq .page-head__title {
  font-family: var(--font-title);
  font-size: 32px;
  line-height: 1.2;
  margin: 0 0 16px;
}

.page-faq .page-head__desc {
  max-width: 620px;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .82);
}

@media (min-width: 768px) {
  .page-faq .page-head__title {
    font-size: 46px;
  }

  .page-faq .page-head__desc {
    font-size: 16px;
  }
}

/* 搜索与筛选区 */
.page-faq .faq-filter-wrap {
  padding: 48px 0 24px;
  background: #FFFFFF;
}

.page-faq .faq-filter-area {
  position: relative;
}

.page-faq .faq-filter-area > input[type="radio"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  margin: 0;
}

.page-faq .faq-filter {
  background: #FFFFFF;
  border: 2px solid var(--faq-navy);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 22px;
  display: grid;
  gap: 14px;
  margin-bottom: 36px;
}

.page-faq .faq-filter__head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-faq .faq-filter__index {
  font-family: var(--font-title);
  font-size: 40px;
  line-height: 1;
  color: var(--faq-navy);
  background: var(--faq-yellow);
  padding: 6px 12px;
  border-radius: var(--radius);
  flex: 0 0 auto;
}

.page-faq .faq-filter__head h2 {
  font-family: var(--font-title);
  font-size: 22px;
  margin: 0 0 4px;
  color: var(--faq-navy);
}

.page-faq .faq-filter__head p {
  margin: 0;
  font-size: 14px;
  color: #556;
}

.page-faq .faq-filter__search {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--faq-line);
  background: var(--faq-muted);
  border-radius: var(--radius);
  padding: 4px 14px;
}

.page-faq .faq-filter__search svg {
  width: 18px;
  height: 18px;
  color: var(--faq-navy);
  flex: 0 0 auto;
}

.page-faq .faq-filter__input {
  width: 100%;
  border: 0;
  background: transparent;
  font-size: 15px;
  padding: 10px 0;
  outline: none;
  font-family: var(--font-body);
  color: var(--faq-ink);
}

.page-faq .faq-filter__input::placeholder {
  color: #999;
}

.page-faq .faq-filter__input:focus-visible {
  box-shadow: 0 -2px 0 var(--faq-orange) inset;
}

.page-faq .faq-filter__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-filter__tabs label {
  font-size: 13px;
  color: var(--faq-navy);
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
  background: #FFFFFF;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.page-faq .faq-filter__tabs label:hover {
  border-color: var(--faq-yellow);
}

/* 选中标签态 */
.page-faq #cat-all:checked ~ .faq-filter .faq-filter__tabs label[for="cat-all"],
.page-faq #cat-open:checked ~ .faq-filter .faq-filter__tabs label[for="cat-open"],
.page-faq #cat-query:checked ~ .faq-filter .faq-filter__tabs label[for="cat-query"],
.page-faq #cat-download:checked ~ .faq-filter .faq-filter__tabs label[for="cat-download"],
.page-faq #cat-account:checked ~ .faq-filter .faq-filter__tabs label[for="cat-account"] {
  background: var(--faq-navy);
  color: #FFFFFF;
  border-color: var(--faq-navy);
}

/* 分类过滤：选中后隐藏其他分组 */
.page-faq #cat-open:checked ~ .faq-layout .faq-group:not([data-group="open"]),
.page-faq #cat-query:checked ~ .faq-layout .faq-group:not([data-group="query"]),
.page-faq #cat-download:checked ~ .faq-layout .faq-group:not([data-group="download"]),
.page-faq #cat-account:checked ~ .faq-layout .faq-group:not([data-group="account"]) {
  display: none;
}

/* 双栏布局：目录 + 答案 */
.page-faq .faq-layout {
  display: grid;
  gap: 32px;
  padding-bottom: 64px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }
}

.page-faq .faq-index {
  border-left: 3px solid var(--faq-yellow);
  padding: 4px 0 4px 20px;
}

.page-faq .faq-index__title {
  font-family: var(--font-title);
  font-size: 17px;
  color: var(--faq-navy);
  margin: 0 0 12px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
}

.page-faq .faq-index__link {
  color: #3A4A5E;
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-index__link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--faq-orange);
  flex: 0 0 auto;
  transform: translateY(-2px);
}

.page-faq .faq-index__link:hover {
  color: var(--faq-navy);
  text-decoration: underline;
  text-decoration-color: var(--faq-yellow);
  text-underline-offset: 4px;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }
}

@media (max-width: 959.98px) {
  .page-faq .faq-index {
    border-left: none;
    padding: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .page-faq .faq-index__list {
    display: flex;
    gap: 8px;
    white-space: nowrap;
    padding-bottom: 8px;
  }

  .page-faq .faq-index__list li {
    flex: 0 0 auto;
  }

  .page-faq .faq-index__link {
    background: var(--faq-muted);
    border: 1px solid var(--faq-line);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: 13px;
  }

  .page-faq .faq-index__link::before {
    display: none;
  }
}

/* 答疑分组 */
.page-faq .faq-group {
  margin-bottom: 40px;
  scroll-margin-top: calc(var(--header-height) + 16px);
}

.page-faq .faq-group__head {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--faq-navy);
}

.page-faq .faq-group__media {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--faq-rime);
  line-height: 0;
}

.page-faq .faq-group__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .faq-group__text h3,
.page-faq .faq-group__title h3 {
  font-family: var(--font-title);
  font-size: 22px;
  margin: 0 0 8px;
  color: var(--faq-navy);
}

.page-faq .faq-group__text p,
.page-faq .faq-group__title p {
  margin: 0;
  font-size: 14px;
  color: #566;
  line-height: 1.7;
}

@media (min-width: 640px) {
  .page-faq .faq-group__head {
    grid-template-columns: 220px 1fr;
    align-items: center;
    gap: 24px;
  }
}

.page-faq .faq-group--plain .faq-group__title {
  margin: 8px 0 16px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--faq-navy);
}

/* 手风琴条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 8px 16px 0;
  font-family: var(--font-title);
  font-size: 15px;
  color: var(--faq-ink);
  cursor: pointer;
  transition: color var(--transition), padding-left var(--transition);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  color: var(--faq-yellow);
  transition: transform var(--transition);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item summary:hover {
  color: var(--faq-navy);
  padding-left: 6px;
}

.page-faq .faq-item[open] {
  background: var(--faq-muted);
  border-left: 4px solid var(--faq-orange);
  padding-left: 16px;
}

.page-faq .faq-item:target {
  border-left-color: var(--faq-yellow);
  background: #FFF9EC;
}

.page-faq .faq-item__content {
  padding: 4px 0 20px;
  font-size: 14px;
  line-height: 1.8;
  color: #334;
}

.page-faq .faq-item__content ol,
.page-faq .faq-item__content ul {
  margin: 0;
  padding-left: 18px;
}

.page-faq .faq-item__content li {
  margin-bottom: 8px;
}

.page-faq .faq-item__content li:last-child {
  margin-bottom: 0;
}

.page-faq .faq-item__content a {
  color: var(--faq-navy);
  text-decoration: underline;
  text-decoration-color: var(--faq-yellow);
  text-underline-offset: 3px;
}

/* 联系支持 */
.page-faq .faq-contact {
  background: linear-gradient(135deg, #0A2342 0%, #163A62 100%);
  color: #FFFFFF;
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-contact::before {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -80px;
  width: 220px;
  height: 220px;
  border: 3px solid rgba(245, 166, 35, .3);
  border-radius: 50%;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 32px;
  position: relative;
  z-index: 1;
}

@media (min-width: 860px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: start;
  }
}

.page-faq .faq-contact__intro .section__index {
  font-family: var(--font-title);
  font-size: 44px;
  line-height: 1;
  color: var(--faq-yellow);
  margin: 0 0 8px;
  display: block;
}

.page-faq .faq-contact__intro h2 {
  font-family: var(--font-title);
  font-size: 28px;
  margin: 0 0 12px;
}

.page-faq .faq-contact__intro p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .82);
}

.page-faq .faq-contact__cards {
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact__card {
  background: #FFFFFF;
  border-radius: var(--radius);
  padding: 22px;
  border-top: 4px solid var(--faq-yellow);
  box-shadow: var(--shadow-card);
  color: var(--faq-ink);
}

.page-faq .faq-contact__card-label {
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 0 0 6px;
  color: #777;
  font-family: var(--font-title);
}

.page-faq .faq-contact__card h3 {
  font-family: var(--font-title);
  font-size: 18px;
  margin: 0 0 8px;
  color: var(--faq-navy);
  word-break: break-all;
}

.page-faq .faq-contact__card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #445;
}

.page-faq .faq-contact__card a {
  color: var(--faq-navy);
  text-decoration: underline;
  text-decoration-color: var(--faq-yellow);
  text-underline-offset: 3px;
}

.page-faq .faq-contact__note {
  position: relative;
  z-index: 1;
  margin: 32px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .2);
  font-size: 13px;
  color: rgba(255, 255, 255, .7);
  line-height: 1.7;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    scroll-behavior: auto !important;
  }
}