.page-faq {
  --faq-cut: 16px;
  --faq-gap: clamp(16px, 2.6vw, 28px);
  min-width: 0;
}

.page-faq .faq-hero {
  padding-block: clamp(20px, 4vw, 46px) clamp(12px, 2vw, 20px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-hero h1 {
  margin-block: 12px 16px;
  max-width: 18ch;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__lead .lead {
  max-width: 46ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* 首屏右侧：常见卡点 */
.page-faq .faq-hero__note {
  position: relative;
  padding: 22px 20px 18px;
  background: linear-gradient(160deg, var(--ink-card) 0%, var(--ink-panel) 62%, var(--ink) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-hero__note::after {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 56px;
  height: 3px;
  background: var(--cyan);
}

.page-faq .faq-hero__note-title {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-quick__row {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  padding-block: 10px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-quick__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-quick__k {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-faq .faq-quick__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* 注册三步进度条 */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(10px, 2vw, 22px) 0 0;
  padding: clamp(14px, 2vw, 18px) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  background-image: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 52%, var(--line) 52%, var(--line) 100%);
  background-size: 100% 2px;
  background-position: top left;
  background-repeat: no-repeat;
}

.page-faq .faq-step__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: background-color var(--t) var(--ease), border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .faq-step__link:hover,
.page-faq .faq-step__link:focus-visible {
  background: var(--ink-card);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-step__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-step__num {
  font-size: 20px;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-step__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-step__label {
  font-weight: 700;
  font-size: 15px;
}

.page-faq .faq-step__hint {
  font-size: 12px;
  color: var(--mist);
  line-height: 1.6;
}

/* 章节头 */
.page-faq .faq-head {
  max-width: 100%;
}

.page-faq .faq-head h2 {
  margin-block: 10px 12px;
}

.page-faq .faq-head__lead {
  max-width: 56ch;
  color: var(--mist);
}

.page-faq .faq-inline-link {
  color: var(--cyan);
}

/* 注册图文 */
.page-faq .faq-figure {
  margin-block: clamp(20px, 3vw, 32px) clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  background: var(--ink-panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-figure .figure__caption {
  padding: 12px 16px 14px;
  font-size: 12px;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-faq .faq-figure--aside {
  margin: 0;
}

/* 注册三步详情 */
.page-faq .faq-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-flow__item {
  position: relative;
  padding: 20px 20px 18px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
  border-inline-start: 3px solid var(--cyan);
  scroll-margin-top: 88px;
}

.page-faq .faq-flow__item:hover {
  background: var(--ink-card);
}

.page-faq .faq-flow__num {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 24px;
  color: var(--ink);
  background: var(--cyan);
  padding: 2px 8px;
  line-height: 1.3;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-faq .faq-flow__item h3 {
  margin: 0 0 8px;
}

.page-faq .faq-flow__item .anno {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: var(--mist);
}

/* 换设备章节：非对称分栏 */
.page-faq .faq-switch {
  background: linear-gradient(180deg, rgba(10, 42, 34, 0.72) 0%, rgba(4, 26, 21, 0) 100%);
}

.page-faq .faq-switch__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-switch__main h2 {
  margin-block: 10px 14px;
}

.page-faq .faq-switch__main > .body-text {
  max-width: 56ch;
  color: var(--mist);
}

.page-faq .faq-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-list__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-list__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-list__num {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-faq .faq-list__item .body-text {
  margin: 0;
  font-size: 15px;
  color: var(--paper);
}

.page-faq .faq-aside {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-sync {
  background: var(--ink-card);
  border: 1px solid var(--line);
}

.page-faq .faq-sync__rows {
  margin: 14px 0 12px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-sync__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-block: 10px;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-sync__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-sync__row dt {
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-sync__row dd {
  margin: 0;
  font-size: 16px;
  color: var(--paper);
}

.page-faq .faq-sync__row dd.faq-sync__hot {
  color: var(--gold);
  font-size: 18px;
}

/* 收藏筛选 */
.page-faq .faq-head--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-items: end;
}

.page-faq .faq-facets {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-facet {
  position: relative;
  padding: 18px 18px 16px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .faq-facet:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-facet__key {
  position: absolute;
  inset-block-start: 14px;
  inset-inline-end: 16px;
  font-size: 13px;
  color: var(--violet);
}

.page-faq .faq-facet h3 {
  margin: 0 0 8px;
}

.page-faq .faq-facet .body-text {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-tip {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
}

/* 下载时间轴 */
.page-faq .faq-timeline {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .faq-timeline__node {
  position: relative;
  padding: 18px 18px 16px 30px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
}

.page-faq .faq-timeline__node::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 3px;
  background: var(--line);
}

.page-faq .faq-timeline__node:last-child::before {
  background: var(--gold);
}

.page-faq .faq-timeline__dot {
  position: absolute;
  inset-block-start: 20px;
  inset-inline-start: -5px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-faq .faq-timeline__dot--gold {
  border-color: var(--gold);
  background: var(--gold);
}

.page-faq .faq-timeline__t {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

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

.page-faq .faq-timeline__node h3 {
  margin: 0 0 8px;
}

.page-faq .faq-timeline__node .body-text {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-dl {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-dl__col {
  padding-top: 16px;
  border-top: 2px solid var(--cyan);
}

.page-faq .faq-dl__col:last-child {
  border-top-color: var(--gold);
}

.page-faq .faq-dl__col h3 {
  margin: 0 0 10px;
}

.page-faq .faq-dl__col .body-text {
  margin: 0;
  color: var(--mist);
}

/* 常见问题手风琴 */
.page-faq .faq-qa {
  background: linear-gradient(180deg, rgba(16, 56, 46, 0.5) 0%, rgba(4, 26, 21, 0) 100%);
}

.page-faq .faq-groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-group {
  padding: 18px 18px 6px;
  background: var(--ink-panel);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__num {
  font-size: 13px;
  color: var(--ink);
  background: var(--cyan);
  padding: 1px 7px;
}

.page-faq .faq-group__head h3 {
  margin: 0;
}

.page-faq .faq-q {
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-q:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.6;
  transition: color var(--t) var(--ease);
}

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

.page-faq .faq-q summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 18px;
  line-height: 1.2;
  color: var(--cyan);
  transition: transform var(--t) var(--ease);
}

.page-faq .faq-q[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-q summary:hover {
  color: var(--cyan);
}

.page-faq .faq-q summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-q__body {
  padding: 0 0 14px;
}

.page-faq .faq-q__body .body-text {
  margin: 0;
  font-size: 14px;
  color: var(--mist);
}

/* 联系支持 */
.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-support__main h2 {
  margin-block: 10px 14px;
}

.page-faq .faq-support__main > .body-text {
  max-width: 58ch;
  color: var(--mist);
}

.page-faq .faq-support__rules {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-support__rules li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-support__rules li .tag {
  justify-self: start;
}

.page-faq .faq-support__more {
  margin-top: 18px;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-contact {
  padding: 22px 20px;
  background: var(--ink-card);
  border: 1px solid var(--line);
  border-inline-start: 3px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-contact__title {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 3px;
  padding-block: 11px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-contact__row:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-contact__key {
  font-size: 12px;
  color: var(--mist);
}

.page-faq .faq-contact__val {
  font-size: 15px;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 16px 0 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

@media (min-width: 640px) {
  .page-faq .faq-hero__actions {
    gap: 12px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-facets {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.82fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-faq .faq-hero__note {
    margin-bottom: 6px;
  }

  .page-faq .faq-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-head--split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(20px, 4vw, 56px);
  }

  .page-faq .faq-switch__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    gap: clamp(24px, 4vw, 52px);
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-facets {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 4vw, 48px);
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    gap: clamp(24px, 4vw, 52px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step__link,
  .page-faq .faq-facet,
  .page-faq .faq-q summary::after {
    transition: none;
  }

  .page-faq .faq-step__link:hover,
  .page-faq .faq-step__link:focus-visible,
  .page-faq .faq-facet:hover {
    transform: none;
  }
}