.page-faq {
  --faq-ink: #1B3A5C;
  --faq-gold: #C99B3F;
  --faq-red: #B23A2E;
  --faq-snow: #F7F5F0;
  --faq-oat: #F0E9D8;
  --faq-soft-line: rgba(201, 155, 63, 0.16);
  --faq-page-gap: 56px;
  background: var(--faq-snow);
  overflow-x: clip;
}

.page-faq .container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-faq .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 面包屑 */
.page-faq .faq-crumbs {
  background: var(--faq-snow);
  padding: 18px 0 0;
}

.page-faq .breadcrumbs {
  font-size: 13px;
  color: var(--rock);
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumbs__link {
  color: var(--sacred-blue);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

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

.page-faq .breadcrumbs__sep {
  color: var(--rock);
}

.page-faq .breadcrumbs__current {
  color: var(--rock);
}

/* Hero 首屏 */
.page-faq .faq-hero {
  position: relative;
  background: linear-gradient(132deg, #1B3A5C 0%, #132C48 62%, #1B3A5C 100%);
  color: var(--faq-snow);
  padding: 56px 0 72px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "04";
  position: absolute;
  right: 10px;
  top: -26px;
  font-family: var(--font-head);
  font-size: 190px;
  font-weight: 900;
  line-height: 1;
  color: rgba(247, 245, 240, 0.05);
  pointer-events: none;
  letter-spacing: -0.06em;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -70px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 155, 63, 0.16) 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 40px;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201, 155, 63, 0.13);
  border: 1px solid rgba(201, 155, 63, 0.32);
  color: var(--faq-gold);
  border-radius: var(--radius-pill);
  padding: 5px 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  margin-bottom: 22px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-head);
  font-size: 34px;
  line-height: 1.22;
  color: var(--faq-snow);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__title span {
  display: block;
  color: var(--faq-gold);
  font-size: 0.72em;
  margin-top: 6px;
}

.page-faq .faq-hero__lead {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 245, 240, 0.78);
  max-width: 34em;
  margin: 0 0 24px;
}

.page-faq .faq-hero__flags {
  max-width: 240px;
}

.page-faq .faq-hero__panel {
  display: grid;
  gap: 14px;
  align-content: center;
}

.page-faq .faq-search {
  display: block;
  background: rgba(247, 245, 240, 0.07);
  border: 1px solid rgba(247, 245, 240, 0.13);
  border-radius: var(--radius-lg);
  padding: 22px 20px 18px;
  position: relative;
}

.page-faq .faq-search__icon {
  position: absolute;
  left: 34px;
  top: 46px;
  font-size: 18px;
  color: rgba(247, 245, 240, 0.5);
  line-height: 1;
  transform: translateY(-50%);
}

.page-faq .faq-search input {
  width: 100%;
  border: 1px solid rgba(247, 245, 240, 0.14);
  background: rgba(247, 245, 240, 0.09);
  border-radius: var(--radius-pill);
  padding: 14px 16px 14px 46px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--faq-snow);
  outline: none;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
  box-sizing: border-box;
}

.page-faq .faq-search input::placeholder {
  color: rgba(247, 245, 240, 0.4);
}

.page-faq .faq-search input:focus {
  border-color: rgba(201, 155, 63, 0.7);
  background: rgba(247, 245, 240, 0.13);
}

.page-faq .faq-search__hint {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  color: rgba(247, 245, 240, 0.55);
  text-align: right;
}

.page-faq .faq-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

/* 快速上手 */
.page-faq .faq-quickstart {
  padding-top: var(--faq-page-gap);
  padding-bottom: var(--faq-page-gap);
}

.page-faq .faq-quickstart .section-heading {
  margin-bottom: 32px;
  display: grid;
  gap: 12px;
  align-items: end;
}

.page-faq .faq-quickstart__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-step {
  background: var(--faq-snow);
  border: 1px solid rgba(27, 58, 92, 0.08);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(27, 58, 92, 0.08);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--faq-gold), var(--faq-red));
  border-radius: 0 4px 4px 0;
}

.page-faq .faq-step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}

.page-faq .faq-step__num {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 30px;
  line-height: 1;
  color: var(--faq-gold);
  letter-spacing: -0.04em;
  min-width: 46px;
}

.page-faq .faq-step__head h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 19px;
  color: var(--faq-ink);
}

.page-faq .faq-step__text {
  margin: 0 0 10px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: #5d626e;
}

.page-faq .faq-step .link-arrow {
  font-family: var(--font-head);
  font-size: 13px;
  color: var(--faq-red);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.page-faq .faq-quickstart__image {
  margin: 0;
}

.page-faq .faq-quickstart__image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  display: block;
  object-fit: cover;
}

/* 帮助主区 */
.page-faq .faq-layout {
  background: var(--faq-snow);
  padding-top: var(--faq-page-gap);
  padding-bottom: var(--faq-page-gap);
}

.page-faq .faq-layout__grid {
  display: grid;
  gap: 32px;
  align-items: start;
}

/* 左侧索引 */
.page-faq .faq-index__card {
  background: linear-gradient(158deg, #1B3A5C, #162F4C);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  color: var(--faq-snow);
  box-shadow: 0 24px 50px rgba(27, 58, 92, 0.16);
}

.page-faq .faq-index__header {
  margin-bottom: 18px;
}

.page-faq .faq-index__desc {
  margin: 12px 0 0;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.75;
  color: rgba(247, 245, 240, 0.7);
}

.page-faq .faq-index__nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 2px 0 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(201, 155, 63, 0.5) transparent;
}

.page-faq .faq-index__nav::-webkit-scrollbar {
  height: 4px;
}

.page-faq .faq-index__nav::-webkit-scrollbar-thumb {
  background: rgba(201, 155, 63, 0.5);
  border-radius: 4px;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  background: rgba(247, 245, 240, 0.08);
  border: 1px solid rgba(247, 245, 240, 0.1);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  color: rgba(247, 245, 240, 0.85);
  font-family: var(--font-head);
  font-size: 13px;
  text-decoration: none;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.page-faq .faq-index__link span {
  color: var(--faq-gold);
  font-size: 12px;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(201, 155, 63, 0.22);
  color: var(--faq-snow);
}

.page-faq .faq-index__help {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(247, 245, 240, 0.12);
}

.page-faq .faq-index__help-title {
  font-family: var(--font-head);
  font-size: 15px;
  color: var(--faq-gold);
  margin: 0 0 6px;
}

.page-faq .faq-index__help-text {
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(247, 245, 240, 0.68);
}

.page-faq .faq-index__help .btn {
  font-size: 13px;
}

/* 右侧内容 */
.page-faq .faq-layout__content {
  display: grid;
  gap: 44px;
}

.page-faq .faq-block .section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
  align-items: end;
}

.page-faq .faq-block .section-heading__number {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 36px;
  line-height: 1;
  color: var(--faq-gold);
}

.page-faq .faq-block .section-heading__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 24px;
  color: var(--faq-ink);
}

.page-faq .faq-block .section-heading__sub {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--rock);
}

/* 手风琴 */
.page-faq .faq-accordion {
  display: grid;
  gap: 12px;
}

.page-faq .faq-accordion__item {
  background: var(--faq-snow);
  border: 1px solid rgba(27, 58, 92, 0.09);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-accordion__item[open] {
  border-color: rgba(201, 155, 63, 0.4);
  box-shadow: 0 8px 26px rgba(27, 58, 92, 0.06);
}

.page-faq .faq-accordion__summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 20px;
  font-family: var(--font-head);
  font-size: 15px;
  line-height: 1.5;
  color: var(--faq-ink);
  transition: background 0.3s var(--ease);
  user-select: none;
}

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

.page-faq .faq-accordion__summary:hover {
  background: rgba(201, 155, 63, 0.06);
}

.page-faq .faq-accordion__icon {
  position: relative;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--faq-gold);
  transition: transform 0.3s var(--ease);
}

.page-faq .faq-accordion__icon::before,
.page-faq .faq-accordion__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12px;
  height: 2px;
  background: var(--faq-snow);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-accordion__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.page-faq .faq-accordion__item[open] .faq-accordion__icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-accordion__answer {
  padding: 0 20px 20px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: #5d626e;
}

.page-faq .faq-accordion__answer p {
  margin: 0;
}

/* 详细帮助文档 */
.page-faq .faq-docs__wrap {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-faq .faq-docs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px 28px;
}

.page-faq .faq-docs__col {
  background: var(--faq-snow);
  border: 1px solid rgba(27, 58, 92, 0.07);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.page-faq .faq-docs__category {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 15px;
  color: var(--faq-red);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--faq-oat);
}

.page-faq .faq-docs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-docs__list a {
  display: block;
  padding: 7px 0;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--faq-ink);
  text-decoration: none;
  border-bottom: 1px dotted rgba(27, 58, 92, 0.16);
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-faq .faq-docs__list a:hover {
  color: var(--faq-gold);
  padding-left: 6px;
}

.page-faq .faq-docs__figure {
  margin: 0;
  max-width: 260px;
}

.page-faq .faq-docs__figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: 0 12px 32px rgba(27, 58, 92, 0.12);
}

/* 分类说明 */
.page-faq .faq-cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-cat {
  border-radius: var(--radius-lg);
  padding: 22px;
  border: 1px solid var(--faq-soft-line);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-faq .faq-cat:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(27, 58, 92, 0.08);
}

.page-faq .faq-cat h3 {
  margin: 12px 0 8px;
  font-family: var(--font-head);
  font-size: 17px;
  color: var(--faq-ink);
}

.page-faq .faq-cat p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: #626877;
}

/* 信任区 */
.page-faq .faq-trust {
  padding: 28px 0;
}

.page-faq .faq-trust .trust-note {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  text-align: center;
  font-family: var(--font-body);
  font-size: 14px;
  color: rgba(247, 245, 240, 0.78);
}

.page-faq .faq-trust .trust-note p {
  margin: 0;
}

/* ========== Tablet ========== */
@media (min-width: 640px) {
  .page-faq .faq-hero__title {
    font-size: 42px;
  }

  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-docs__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========== Desktop ========== */
@media (min-width: 992px) {
  .page-faq .faq-hero {
    padding: 68px 0 84px;
  }

  .page-faq .faq-hero__inner {
    grid-template-columns: 1.35fr 0.9fr;
    gap: 64px;
    align-items: center;
  }

  .page-faq .faq-hero__title {
    font-size: 46px;
  }

  .page-faq .faq-quickstart__grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-faq .faq-layout__grid {
    grid-template-columns: 280px 1fr;
    gap: 40px;
  }

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

  .page-faq .faq-index__nav {
    flex-direction: column;
    gap: 4px;
    overflow: visible;
    padding: 4px 0 14px;
  }

  .page-faq .faq-index__link {
    border-radius: var(--radius-md);
    white-space: normal;
    padding: 12px 14px;
    font-size: 14px;
  }

  .page-faq .faq-layout__content {
    gap: 52px;
  }

  .page-faq .faq-block .section-heading {
    grid-template-columns: 52px 1fr;
    column-gap: 16px;
    align-items: center;
  }

  .page-faq .faq-block .section-heading__number {
    font-size: 44px;
    grid-row: span 2;
  }

  .page-faq .faq-block .section-heading__sub {
    grid-column: 2;
  }

  .page-faq .faq-docs__wrap {
    grid-template-columns: 1fr 280px;
    gap: 32px;
  }

  .page-faq .faq-docs__figure {
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }
}