.page-faq {
  --faq-gap: clamp(56px, 8vw, 108px);
  --faq-line: rgba(155, 174, 196, .22);
  background:
    linear-gradient(180deg, rgba(125, 107, 255, .07), transparent 420px),
    var(--deep-sea);
  color: var(--cloud);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
  letter-spacing: -.03em;
  margin: 0;
  overflow-wrap: break-word;
}

.page-faq p {
  margin: 0;
  line-height: 1.72;
  overflow-wrap: break-word;
}

.page-faq a {
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 180, 90, .4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq .btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-top {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--mist);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(155, 174, 196, .5);
}

.page-faq .breadcrumbs a {
  color: var(--mist);
  border-bottom: none;
}

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

.page-faq .faq-hero {
  padding-block: clamp(28px, 5vw, 56px) var(--faq-gap);
  border-bottom: 1px solid var(--faq-line);
  background-image:
    repeating-linear-gradient(90deg, rgba(155, 174, 196, .07) 0 1px, transparent 1px 96px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  align-items: end;
}

.page-faq .faq-hero h1 {
  font-weight: 300;
  font-size: clamp(34px, 6.4vw, 74px);
  line-height: 1.06;
  margin-top: 18px;
  color: var(--cloud);
}

.page-faq .faq-hero h1 strong {
  font-weight: 700;
  color: var(--gold);
  font-family: var(--font-mono);
  letter-spacing: -.04em;
}

.page-faq .faq-hero__intro {
  margin-top: clamp(18px, 3vw, 26px);
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  margin-top: clamp(22px, 3vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-faq .faq-hero__actions a {
  border-bottom: none;
}

.page-faq .faq-hero__plate {
  padding: clamp(20px, 3vw, 26px);
  background: rgba(14, 32, 56, .74);
  border: 1px solid var(--line-gold);
  box-shadow: 10px 10px 0 rgba(5, 10, 18, .55);
  backdrop-filter: blur(2px);
}

.page-faq .hero-stats {
  margin: 16px 0 0;
  display: grid;
  gap: 14px;
}

.page-faq .hero-stat {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(155, 174, 196, .22);
}

.page-faq .hero-stat:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .hero-stat__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .hero-stat__v {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(17px, 2vw, 20px);
  color: var(--cloud);
  letter-spacing: -.02em;
}

.page-faq .hero-stat__note {
  margin-top: 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 通用区块 ---------- */

.page-faq .faq-section {
  padding-block: var(--faq-gap);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section--band {
  background:
    linear-gradient(180deg, rgba(14, 32, 56, .78), rgba(7, 20, 38, .95));
}

.page-faq .faq-section__head {
  max-width: 66ch;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-section__head h2 {
  font-weight: 300;
  font-size: clamp(25px, 3.6vw, 42px);
  line-height: 1.16;
  margin-top: 14px;
}

.page-faq .faq-section__sub {
  margin-top: 14px;
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--mist);
  max-width: 64ch;
}

.page-faq .faq-section__head h3 {
  font-weight: 500;
  font-size: clamp(18px, 2vw, 22px);
  margin-bottom: 10px;
}

/* ---------- 阶梯流程 ---------- */

.page-faq .faq-flow {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 3vw, 24px);
  position: relative;
}

.page-faq .step-list::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(95, 227, 212, .45));
  opacity: .5;
}

.page-faq .step-list__item {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--faq-line);
  background: linear-gradient(140deg, rgba(14, 32, 56, .92), rgba(7, 20, 38, .92));
  box-shadow: 7px 7px 0 rgba(5, 10, 18, .5);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .step-list__item:hover {
  border-color: var(--line-gold);
  transform: translate(-2px, -2px);
  box-shadow: 11px 11px 0 rgba(5, 10, 18, .58);
}

.page-faq .step-list__marker {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 2px;
}

.page-faq .step-list__marker .coord {
  writing-mode: vertical-rl;
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-faq .step-list__body h3 {
  font-weight: 600;
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.3;
  color: var(--cloud);
  margin-bottom: 12px;
}

.page-faq .step-list__body p {
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--mist);
  margin-bottom: 12px;
}

.page-faq .step-list__body p:last-of-type {
  margin-bottom: 0;
}

.page-faq .step-list__more {
  margin-top: 16px;
  border-top: 1px solid var(--faq-line);
  padding-top: 14px;
}

.page-faq .step-list__more summary,
.page-faq .settings-card summary,
.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: -.01em;
  color: var(--cloud);
}

.page-faq .step-list__more summary::-webkit-details-marker,
.page-faq .settings-card summary::-webkit-details-marker,
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .step-list__more summary::after,
.page-faq .settings-card summary::after,
.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--gold);
}

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

.page-faq .step-list__more summary:hover,
.page-faq .settings-card summary:hover,
.page-faq .faq-item summary:hover {
  color: var(--gold);
}

.page-faq .step-list__more ul,
.page-faq .settings-card ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .step-list__more li,
.page-faq .settings-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .step-list__more li::before,
.page-faq .settings-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 1px;
  background: var(--aurora);
}

.page-faq .step-list__figure {
  margin: 0;
}

.page-faq .media-frame {
  border: 1px solid var(--faq-line);
  background: var(--midnight);
  overflow: hidden;
}

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

/* ---------- 48 小时进度 ---------- */

.page-faq .progress-layout {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-faq .progress-copy h3 {
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 23px);
  margin-bottom: 14px;
}

.page-faq .progress-copy p {
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--mist);
  margin-bottom: 14px;
}

.page-faq .progress-copy a.btn {
  margin-top: 8px;
  border-bottom: none;
}

.page-faq .progress-rail {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-gold);
  background: rgba(7, 20, 38, .86);
  box-shadow: inset 0 0 0 1px rgba(5, 10, 18, .6);
}

.page-faq .rail-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .rail-item {
  position: relative;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 26px;
}

.page-faq .rail-item:last-child {
  padding-bottom: 0;
}

.page-faq .rail-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(95, 227, 212, .5));
  opacity: .7;
}

.page-faq .rail-item:last-child::before {
  display: none;
}

.page-faq .rail-item__dot {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: rgba(232, 180, 90, .14);
  margin-top: 2px;
}

.page-faq .rail-item__time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-faq .rail-item__label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--cloud);
  margin-top: 4px;
}

.page-faq .rail-item__tip {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  opacity: .62;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .rail-item:hover .rail-item__tip,
.page-faq .rail-item:focus-within .rail-item__tip {
  opacity: 1;
}

.page-faq .rail-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed rgba(155, 174, 196, .25);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 账户页设置 ---------- */

.page-faq .settings-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
  grid-template-columns: 1fr;
}

.page-faq .settings-card {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--faq-line);
  background: linear-gradient(160deg, rgba(14, 32, 56, .9), rgba(7, 20, 38, .9));
  box-shadow: 8px 8px 0 rgba(5, 10, 18, .45);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .settings-card:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.page-faq .settings-card .coord {
  color: var(--aurora);
  font-size: 10px;
  letter-spacing: .16em;
}

.page-faq .settings-card h3 {
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 26px);
  margin: 10px 0 12px;
}

.page-faq .settings-card p {
  font-size: clamp(14px, 1.5vw, 15px);
  color: var(--mist);
}

.page-faq .settings-card details {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .settings-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ---------- 账户页说明 ---------- */

.page-faq .account-note {
  display: grid;
  gap: 16px;
  max-width: 72ch;
  padding-left: clamp(16px, 3vw, 28px);
  border-left: 2px solid var(--gold);
}

.page-faq .account-note p {
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--mist);
}

.page-faq .account-note__link {
  color: var(--cloud);
}

/* ---------- 换设备 ---------- */

.page-faq .device-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 3vw, 26px);
}

.page-faq .device-steps__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(14px, 2.5vw, 24px);
  padding-bottom: clamp(18px, 3vw, 26px);
  border-bottom: 1px dashed rgba(155, 174, 196, .22);
}

.page-faq .device-steps__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .device-steps__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  color: rgba(232, 180, 90, .55);
}

.page-faq .device-steps__item h3 {
  font-weight: 600;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
  margin-bottom: 10px;
}

.page-faq .device-steps__item p {
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--mist);
}

.page-faq .device-tip {
  margin-top: clamp(24px, 4vw, 38px);
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid rgba(232, 180, 90, .3);
  background: rgba(232, 180, 90, .06);
}

.page-faq .device-tip .coord {
  color: var(--gold);
  font-size: 10px;
  letter-spacing: .16em;
}

.page-faq .device-tip p + p {
  margin-top: 10px;
  font-size: clamp(14px, 1.5vw, 15.5px);
  color: var(--mist);
}

/* ---------- 常见问题 ---------- */

.page-faq .faq-list {
  display: grid;
  gap: 10px;
  max-width: 84ch;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  background: rgba(14, 32, 56, .62);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(232, 180, 90, .45);
  background: rgba(14, 32, 56, .9);
}

.page-faq .faq-item[open] {
  border-color: var(--line-gold);
  background: rgba(14, 32, 56, .92);
}

.page-faq .faq-item summary {
  padding: clamp(14px, 2.2vw, 18px) clamp(16px, 2.4vw, 22px);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.45;
}

.page-faq .faq-item__body {
  padding: 0 clamp(16px, 2.4vw, 22px) clamp(16px, 2.4vw, 20px);
}

.page-faq .faq-item__body p {
  font-size: clamp(13.5px, 1.4vw, 15px);
  color: var(--mist);
}

/* ---------- 人工支持 ---------- */

.page-faq .support-panel {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line-gold);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(125, 107, 255, .16), transparent 60%),
    linear-gradient(160deg, rgba(14, 32, 56, .95), rgba(5, 10, 18, .95));
  box-shadow: 12px 12px 0 rgba(5, 10, 18, .55);
}

.page-faq .support-panel__lead h2 {
  font-weight: 300;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.16;
  margin-top: 14px;
}

.page-faq .support-panel__lead p {
  margin-top: 14px;
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--mist);
  max-width: 48ch;
}

.page-faq .support-panel__rows {
  margin: 0;
  display: grid;
  gap: 16px;
}

.page-faq .support-panel__row {
  display: grid;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(155, 174, 196, .22);
}

.page-faq .support-panel__row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .support-panel__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--aurora);
}

.page-faq .support-panel__v {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--cloud);
  letter-spacing: -.01em;
  overflow-wrap: anywhere;
}

.page-faq .support-panel__v span {
  display: block;
  margin-top: 6px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
  letter-spacing: 0;
}

.page-faq .support-panel__note {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .support-panel a.btn {
  justify-self: start;
  border-bottom: none;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .settings-grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-faq .settings-card--notify {
    grid-column: 1 / span 6;
  }

  .page-faq .settings-card--security {
    grid-column: 7 / span 6;
    margin-top: 34px;
  }

  .page-faq .settings-card--pref {
    grid-column: 3 / span 8;
  }

  .page-faq .step-list__item:nth-child(2) {
    margin-left: clamp(20px, 6vw, 72px);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-hero__plate {
    margin-left: clamp(-40px, -3vw, -16px);
  }

  .page-faq .faq-flow {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-faq .progress-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  }

  .page-faq .progress-rail {
    position: sticky;
    top: 132px;
  }

  .page-faq .support-panel {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-faq .support-panel__note,
  .page-faq .support-panel a.btn {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-list__item,
  .page-faq .settings-card,
  .page-faq .faq-item,
  .page-faq .rail-item__tip {
    transition: none;
  }

  .page-faq .step-list__item:hover,
  .page-faq .settings-card:hover {
    transform: none;
  }
}