.page-faq {
  --faq-hero-mid: #104A7A;
  --faq-sidebar: 280px;
  --faq-console-radius: 26px;
  background: var(--color-mist);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.75;
}

.page-faq .container {
  padding-left: 20px;
  padding-right: 20px;
}

/* 面包屑 */
.page-faq .breadcrumbs {
  margin: 18px auto 6px;
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--color-steel);
}

.page-faq .breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--color-steel);
  opacity: .5;
}

.page-faq .breadcrumbs__link {
  color: var(--color-steel);
  text-decoration: none;
}

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

.page-faq .breadcrumbs__item[aria-current="page"] {
  color: var(--color-global-blue);
  font-weight: 600;
}

/* 首屏控制台 */
.page-faq .help-hero {
  position: relative;
  overflow: hidden;
  padding: 50px 0 58px;
  background: linear-gradient(135deg, var(--color-deep) 0%, var(--faq-hero-mid) 55%, var(--color-global-blue) 100%);
  color: var(--color-white);
}

.page-faq .help-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 52px 52px;
}

.page-faq .help-hero::after {
  content: "00";
  position: absolute;
  right: -6px;
  bottom: -46px;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 170px;
  line-height: 1;
  color: rgba(255,255,255,.06);
  pointer-events: none;
}

.page-faq .help-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .help-hero .meta-index {
  display: inline-flex;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: rgba(255,255,255,.6);
}

.page-faq .help-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-heading);
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.15;
  letter-spacing: -.02em;
  font-weight: 800;
}

.page-faq .help-hero__lead {
  max-width: 620px;
  margin: 0;
  font-size: 17px;
  color: rgba(255,255,255,.82);
}

.page-faq .help-hero .trust-statement {
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: rgba(255,255,255,.55);
}

.page-faq .help-console {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--faq-console-radius);
  background: var(--glass-blue);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 30px 60px rgba(2,12,28,.35);
  overflow: hidden;
}

.page-faq .help-console__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.07);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(255,255,255,.62);
}

.page-faq .help-console__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-warning);
}

.page-faq .help-console__dot:nth-child(2) {
  background: var(--color-accent);
}

.page-faq .help-console__dot:nth-child(3) {
  background: var(--color-success);
}

.page-faq .help-console__name {
  margin-left: 8px;
}

.page-faq .help-console__count {
  margin-left: auto;
}

.page-faq .help-console__nav {
  display: grid;
  gap: 6px;
  padding: 10px;
}

.page-faq .help-console__nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,.05);
  color: var(--color-white);
  text-decoration: none;
  transition: background .2s, transform .2s;
}

.page-faq .help-console__nav a:hover {
  background: rgba(255,255,255,.14);
  transform: translateX(4px);
}

.page-faq .help-console__num {
  width: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent);
}

.page-faq .help-console__title {
  font-weight: 600;
}

.page-faq .help-console__state {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255,255,255,.5);
}

.page-faq .help-console__arrow {
  color: var(--color-accent);
}

/* 文档区整体 */
.page-faq .help-doc {
  position: relative;
  padding: 48px 0 72px;
}

.page-faq .help-layout {
  display: grid;
  gap: 30px;
  align-items: start;
}

/* 左侧索引 */
.page-faq .help-index {
  order: -1;
}

.page-faq .help-index__inner {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--glass-white);
  box-shadow: var(--shadow-glass);
}

.page-faq .help-index__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.page-faq .help-index__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--color-steel);
}

.page-faq .help-index__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-global-blue);
  background: var(--color-blue-tint);
  padding: 2px 10px;
  border-radius: 999px;
}

.page-faq .help-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .help-index__list::-webkit-scrollbar {
  display: none;
}

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

.page-faq .help-index__reset {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px dashed rgba(10,60,107,.35);
  font-size: 13px;
  color: var(--color-global-blue);
  text-decoration: none;
  white-space: nowrap;
}

.page-faq .help-index__reset:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-faq .help-index__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: 14px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  cursor: pointer;
  transition: background .2s, border-color .2s, color .2s;
}

.page-faq .help-index__btn:hover {
  border-color: var(--color-global-blue);
  color: var(--color-global-blue);
}

.page-faq .help-index__btn[aria-pressed="true"] {
  background: var(--color-global-blue);
  border-color: var(--color-global-blue);
  color: var(--color-white);
}

.page-faq .help-index__badge {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-global-blue);
  background: var(--color-blue-tint);
  padding: 2px 8px;
  border-radius: 999px;
}

.page-faq .help-index__btn[aria-pressed="true"] .help-index__badge {
  color: var(--color-white);
  background: rgba(255,255,255,.16);
}

.page-faq .help-index__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,107,26,.28);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.page-faq .help-index__link:hover {
  background: var(--color-orange-tint);
}

.page-faq .help-index__foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--color-line);
  font-size: 13px;
  color: var(--color-steel);
}

.page-faq .help-index__foot p {
  margin: 4px 0;
}

.page-faq .help-index__foot a {
  color: var(--color-global-blue);
}

.page-faq .help-index__foot .trust-statement {
  font-family: var(--font-mono);
  font-size: 12px;
}

/* 章节区 */
.page-faq .help-panes {
  display: grid;
  gap: 34px;
  min-width: 0;
}

.page-faq .help-chapter {
  scroll-margin-top: calc(var(--header-height) + 18px);
  padding: 26px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.page-faq .help-chapter--sync {
  background: linear-gradient(180deg, var(--color-blue-tint) 0%, var(--color-white) 220px);
}

.page-faq .help-chapter--download {
  background: linear-gradient(180deg, var(--color-orange-tint) 0%, var(--color-white) 220px);
}

.page-faq .help-chapter .chapter-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.page-faq .help-chapter .chapter-head > div {
  flex: 1;
  min-width: 0;
}

.page-faq .help-chapter .chapter-head__index {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent);
  padding-top: 2px;
}

.page-faq .help-chapter .chapter-head__title {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: var(--color-global-blue);
}

.page-faq .help-chapter .chapter-head__lead {
  margin: 0;
  font-size: 14px;
  color: var(--color-steel);
}

/* 手风琴 */
.page-faq .faq-stack {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: var(--color-white);
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}

.page-faq .faq-item[open] {
  border-color: rgba(10,60,107,.3);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.page-faq .faq-item[open] summary {
  padding-bottom: 10px;
}

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

.page-faq .faq-item__qid {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-accent);
  background: var(--color-orange-tint);
  border-radius: 8px;
  padding: 4px 8px;
}

.page-faq .faq-item__qt {
  flex: 1 1 auto;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-blue-tint);
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-global-blue);
  transform: translate(-50%, -50%);
}

.page-faq .faq-item__icon::after {
  height: 10px;
  width: 2px;
  transition: transform .2s;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item__a {
  padding: 0 16px 18px;
  font-size: 15px;
  color: var(--color-steel);
  animation: glb-faq-fade .28s ease;
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
}

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

.page-faq .faq-item__a a {
  color: var(--color-global-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 图 */
.page-faq .help-chapter__body {
  margin-top: 24px;
  display: grid;
  gap: 22px;
}

.page-faq .help-chapter__media {
  max-width: 320px;
  margin: 0 auto;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--color-blue-tint);
}

.page-faq .help-chapter__media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .help-chapter__banner {
  margin: 0 0 22px;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  overflow: hidden;
  background: var(--color-blue-tint);
}

.page-faq .help-chapter__banner img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .help-chapter figcaption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-steel);
}

/* 检索小提示 */
.page-faq .tip-card {
  margin-top: 26px;
  padding: 20px;
  border: 1px dashed rgba(10,60,107,.28);
  border-radius: 18px;
  background: var(--color-blue-tint);
}

.page-faq .tip-card__title {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 800;
  color: var(--color-global-blue);
}

.page-faq .tip-card__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .tip-card__list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--color-steel);
}

.page-faq .tip-card__list span {
  font-family: var(--font-mono);
  color: var(--color-accent);
}

/* 模板档位 */
.page-faq .plan-strip {
  display: grid;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .plan-strip__item {
  padding: 14px 16px;
  border: 1px solid var(--color-line);
  border-radius: 16px;
  background: var(--color-white);
}

.page-faq .plan-strip__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.page-faq .plan-strip__desc {
  font-size: 13px;
  color: var(--color-steel);
}

/* 联系支持 */
.page-faq .help-contact {
  position: relative;
  overflow: hidden;
  scroll-margin-top: calc(var(--header-height) + 18px);
  margin-top: 6px;
  padding: 34px 24px;
  border-radius: var(--radius);
  background: var(--color-deep);
  color: var(--color-white);
}

.page-faq .help-contact::after {
  content: "05";
  position: absolute;
  right: 6px;
  bottom: -42px;
  font-family: var(--font-mono);
  font-size: 140px;
  font-weight: 800;
  color: rgba(255,255,255,.05);
  line-height: 1;
  pointer-events: none;
}

.page-faq .help-contact__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-faq .help-contact .meta-index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--color-accent);
}

.page-faq .help-contact__title {
  margin: 8px 0 10px;
  font-size: 24px;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--color-white);
}

.page-faq .help-contact__copy > p {
  margin: 0 0 18px;
  color: rgba(255,255,255,.74);
  font-size: 15px;
  max-width: 520px;
}

.page-faq .help-contact .btn {
  display: inline-flex;
  align-items: center;
  margin: 4px 12px 0 0;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  font-family: var(--font-sans);
  text-decoration: none;
  transition: background .2s, transform .2s, border-color .2s;
}

.page-faq .help-contact .btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
  border: 1px solid var(--color-accent);
}

.page-faq .help-contact .btn--accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.page-faq .help-contact .btn--ghost {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,.35);
}

.page-faq .help-contact .btn--ghost:hover {
  border-color: var(--color-white);
}

.page-faq .help-contact__channels {
  display: grid;
  gap: 10px;
}

.page-faq .help-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 14px 16px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 16px;
  background: rgba(255,255,255,.06);
}

.page-faq .help-channel__label {
  flex: 0 0 auto;
  width: 72px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: rgba(255,255,255,.55);
}

.page-faq .help-channel__value {
  flex: 1 1 auto;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.page-faq .help-channel__hint {
  flex: 0 0 100%;
  font-size: 12px;
  color: rgba(255,255,255,.55);
  padding-left: 86px;
}

/* 焦点与动效 */
.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 6px;
}

@keyframes glb-faq-fade {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* 平板 */
@media (min-width: 768px) {
  .page-faq .help-hero {
    padding: 68px 0 78px;
  }

  .page-faq .help-chapter {
    padding: 34px 32px;
  }

  .page-faq .help-chapter__body {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
  }

  .page-faq .help-chapter__media {
    max-width: 100%;
    margin: 0;
  }

  .page-faq .plan-strip {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .help-contact {
    padding: 40px 32px;
  }

  .page-faq .help-contact__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    gap: 32px;
  }

  .page-faq .help-index__list {
    padding-bottom: 0;
  }
}

/* 桌面 */
@media (min-width: 992px) {
  .page-faq .help-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 520px);
    gap: 64px;
  }

  .page-faq .help-doc {
    padding: 72px 0 96px;
  }

  .page-faq .help-layout {
    grid-template-columns: var(--faq-sidebar) minmax(0, 1fr);
    gap: 40px;
  }

  .page-faq .help-index {
    order: 0;
    position: sticky;
    top: calc(var(--header-height) + 24px);
  }

  .page-faq .help-index__inner {
    padding: 24px;
  }

  .page-faq .help-index__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
  }

  .page-faq .help-index__list li {
    flex: none;
  }

  .page-faq .help-index__reset,
  .page-faq .help-index__btn,
  .page-faq .help-index__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .help-panes {
    gap: 44px;
  }
}

/* 大屏微调 */
@media (min-width: 1200px) {
  .page-faq .help-hero__grid {
    gap: 80px;
  }

  .page-faq .help-console__nav {
    padding: 14px;
    gap: 8px;
  }

  .page-faq .help-console__nav a {
    padding: 14px 16px;
  }
}