/* ============================================================
   帮助中心 /help-center/
   作用域：.page-faq
   ============================================================ */

.page-faq {
  --faq-gap: clamp(56px, 9vw, 116px);
  --faq-stroke: 1px solid var(--line);
  --faq-quiet: rgba(10, 10, 12, .62);
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq img { max-width: 100%; height: auto; }

/* ---------- 通用页头 ---------- */
.page-faq .faq-head {
  max-width: 62ch;
}

.page-faq .faq-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  margin: 12px 0 0;
  color: var(--bone);
}

.page-faq .faq-head__note {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-space) + clamp(26px, 5vw, 54px)) 0 clamp(44px, 6vw, 82px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -14%;
  width: min(780px, 94vw);
  aspect-ratio: 1 / 1;
  background: radial-gradient(circle at 62% 38%, rgba(200, 16, 46, .3), rgba(200, 16, 46, 0) 64%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(46%, 620px);
  height: 1px;
  background: linear-gradient(90deg, var(--curtain), rgba(200, 16, 46, 0));
  z-index: 0;
}

.page-faq .faq-hero .rh-wrap { position: relative; z-index: 1; }

.page-faq .rh-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--silver);
  margin-bottom: clamp(24px, 4vw, 46px);
}

.page-faq .rh-crumbs a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .rh-crumbs a:hover {
  color: var(--bone);
  border-color: var(--curtain);
}

.page-faq .rh-crumbs__sep { color: var(--stone); }

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.022em;
  margin: 14px 0 0;
  color: var(--bone);
  max-width: 15ch;
}

.page-faq .faq-hero__lede {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 46ch;
  font-size: clamp(16px, 1.25vw, 18px);
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

.page-faq .faq-hero__media {
  margin: 0;
  position: relative;
  border: var(--faq-stroke);
  overflow: hidden;
  background: var(--charcoal);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 10, 12, 0) 42%, rgba(10, 10, 12, .74) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: clamp(28px, 4vw, 50px) 0 0;
  padding: 18px 0 0;
  border-top: var(--faq-stroke);
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(20px, 3.4vw, 46px);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--silver);
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  color: var(--bone);
  letter-spacing: 0;
}

/* ---------- 01 速查表 ---------- */
.page-faq .faq-quick {
  padding: var(--faq-gap) 0;
  border-top: var(--faq-stroke);
}

.page-faq .faq-quick__list {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
}

.page-faq .faq-quick__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  align-items: start;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-top: var(--faq-stroke);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-quick__list > li:last-child {
  border-bottom: var(--faq-stroke);
}

.page-faq .faq-quick__row:hover { background: rgba(200, 16, 46, .05); }

.page-faq .faq-quick__idx {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--curtain);
  padding-top: 5px;
}

.page-faq .faq-quick__body {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}

.page-faq .faq-quick__body h3 {
  margin: 0;
  font-size: clamp(16px, 1.35vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--bone);
}

.page-faq .faq-quick__body p {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-quick__meta {
  grid-column: 2;
  grid-row: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 10px;
}

.page-faq .faq-quick__go {
  font-size: 12.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--bone);
  border-bottom: 1px solid var(--curtain);
  padding-bottom: 2px;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-quick__go:hover {
  color: var(--ember);
  border-color: var(--ember);
}

/* ---------- 02 排查路径 ---------- */
.page-faq .faq-steps {
  padding: var(--faq-gap) 0;
  background: var(--charcoal);
  border-top: var(--faq-stroke);
  border-bottom: var(--faq-stroke);
}

.page-faq .faq-steps__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  align-items: end;
}

.page-faq .faq-steps__media {
  margin: 0;
  border: var(--faq-stroke);
  overflow: hidden;
  background: var(--ink);
}

.page-faq .faq-steps__media img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(.78) contrast(1.08);
}

.page-faq .faq-switch {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  margin: clamp(26px, 3.6vw, 40px) 0 clamp(10px, 1.8vw, 18px);
  border: var(--faq-stroke);
  border-radius: var(--pill);
  background: var(--faq-quiet);
}

.page-faq .faq-switch button {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--silver);
  padding: 10px 22px;
  border-radius: var(--pill);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-switch button:hover { color: var(--bone); }

.page-faq .faq-switch button[aria-pressed="true"] {
  background: var(--curtain);
  color: var(--bone);
}

.page-faq .faq-folds {
  margin-top: clamp(6px, 1.4vw, 12px);
  border-top: var(--faq-stroke);
}

.page-faq .faq-folds .rh-fold__item {
  border-bottom: var(--faq-stroke);
}

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

.page-faq .faq-step__btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "idx title chev"
    "idx tag   chev";
  gap: 4px 16px;
  align-items: center;
  padding: clamp(18px, 2.4vw, 26px) 0;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
  font: inherit;
  text-align: left;
}

.page-faq .faq-step__idx {
  grid-area: idx;
  align-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--curtain);
  padding-top: 4px;
}

.page-faq .faq-step__title {
  grid-area: title;
  font-size: clamp(16px, 1.35vw, 19px);
  font-weight: 700;
  line-height: 1.48;
  color: var(--bone);
}

.page-faq .faq-step__tag {
  grid-area: tag;
  justify-self: start;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--silver);
  padding: 3px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--pill);
}

.page-faq .faq-chev {
  grid-area: chev;
  justify-self: end;
  align-self: center;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--silver);
  border-bottom: 1px solid var(--silver);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .rh-fold__item[data-open] .faq-chev {
  transform: rotate(-135deg);
  border-color: var(--curtain);
}

.page-faq .faq-folds .rh-fold__body,
.page-faq .faq-timeline__track .rh-fold__body {
  padding-bottom: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-steps__list {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  max-width: 70ch;
}

.page-faq .faq-steps__list li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 9px 0;
  font-size: clamp(15px, 1.1vw, 16.5px);
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-steps__list li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--curtain);
  padding-top: 5px;
}

.page-faq .faq-steps__list a {
  color: var(--bone);
  border-bottom: 1px solid var(--curtain);
  text-decoration: none;
}

.page-faq .faq-steps__list a:hover { color: var(--ember); }

.page-faq .faq-tip {
  margin: 16px 0 0;
  padding: 14px 18px;
  max-width: 70ch;
  border-left: 2px solid var(--clay);
  background: rgba(178, 89, 59, .12);
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--bone);
}

.page-faq .faq-tip a {
  color: var(--bone);
  border-bottom: 1px solid var(--curtain);
  text-decoration: none;
}

.page-faq .faq-tip a:hover { color: var(--ember); }

.page-faq .faq-check {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px 22px;
  max-width: 70ch;
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--curtain);
}

/* ---------- 03 版本修复进展 ---------- */
.page-faq .faq-timeline {
  padding: var(--faq-gap) 0;
  border-top: var(--faq-stroke);
}

.page-faq .faq-timeline__track {
  position: relative;
  margin-top: clamp(26px, 4vw, 46px);
  padding-left: 26px;
}

.page-faq .faq-timeline__track::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 12px;
  width: 1px;
  background: var(--line-strong);
}

.page-faq .faq-timeline__track .rh-fold__item {
  position: relative;
  border-bottom: 0;
  padding-bottom: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 16px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--moss);
  box-shadow: 0 0 0 4px rgba(92, 107, 79, .18);
  z-index: 1;
}

.page-faq .faq-node--current::before {
  background: var(--curtain);
  box-shadow: 0 0 0 4px rgba(200, 16, 46, .22);
}

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

.page-faq .faq-node__btn {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "ver   state"
    "sum   chev";
  gap: 6px 14px;
  align-items: start;
  padding: 12px 0 4px;
  background: none;
  border: 0;
  cursor: pointer;
  color: inherit;
  font: inherit;
  text-align: left;
}

.page-faq .faq-node__ver {
  grid-area: ver;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--bone);
}

.page-faq .faq-node__sum {
  grid-area: sum;
  font-size: clamp(15.5px, 1.25vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--bone);
}

.page-faq .faq-node__state {
  grid-area: state;
  justify-self: end;
  font-size: 11.5px;
  letter-spacing: .14em;
  padding: 3px 10px;
  border-radius: var(--pill);
  color: var(--moss);
  border: 1px solid rgba(92, 107, 79, .55);
  white-space: nowrap;
}

.page-faq .faq-node__state--fixed {
  color: var(--bone);
  background: var(--curtain);
  border-color: var(--curtain);
}

.page-faq .faq-node__state--open {
  color: var(--clay);
  border-color: rgba(178, 89, 59, .6);
}

.page-faq .faq-node__btn .faq-chev {
  grid-area: chev;
  justify-self: end;
  align-self: center;
  margin-top: 2px;
}

.page-faq .faq-timeline__track .rh-fold__body p {
  margin: 0;
  max-width: 70ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 04 提交反馈 ---------- */
.page-faq .faq-report {
  padding: var(--faq-gap) 0;
  background: var(--charcoal);
  border-top: var(--faq-stroke);
}

.page-faq .faq-report__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-report__panel {
  padding: clamp(22px, 3vw, 34px);
  border: var(--faq-stroke);
  background: var(--ink);
}

.page-faq .faq-report__panel--ink {
  background: linear-gradient(150deg, rgba(200, 16, 46, .14), rgba(10, 10, 12, .9) 58%);
  border-color: rgba(200, 16, 46, .32);
}

.page-faq .faq-report__sub {
  margin: 0 0 16px;
  font-size: clamp(17px, 1.4vw, 20px);
  font-weight: 700;
  color: var(--bone);
}

.page-faq .faq-report__hint {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-report__facts {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-report__facts li {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: var(--faq-stroke);
}

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

.page-faq .faq-report__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
}

.page-faq .faq-report__facts .rh-copy {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-quick__row {
    grid-template-columns: 56px minmax(0, 1fr) auto;
    align-items: center;
    gap: 0 20px;
  }

  .page-faq .faq-quick__idx { grid-column: 1; grid-row: 1; padding-top: 0; }
  .page-faq .faq-quick__body { grid-column: 2; grid-row: 1; }

  .page-faq .faq-quick__meta {
    grid-column: 3;
    grid-row: 1;
    margin-top: 0;
    justify-content: flex-end;
    flex-wrap: nowrap;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-steps__head {
    grid-template-columns: minmax(0, 1fr) minmax(0, 360px);
  }

  .page-faq .faq-report__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-report__facts li {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 6px 18px;
  }

  .page-faq .faq-report__facts .rh-label { grid-column: 1; }
  .page-faq .faq-report__value { grid-column: 1; }
  .page-faq .faq-report__facts .rh-copy {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: center;
    margin-top: 0;
  }
}

@media (max-width: 520px) {
  .page-faq .faq-switch { width: 100%; }
  .page-faq .faq-switch button { flex: 1 1 auto; padding: 10px 12px; font-size: 12.5px; }
  .page-faq .faq-hero__meta { gap: 12px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__row,
  .page-faq .faq-chev,
  .page-faq .faq-switch button,
  .page-faq .faq-quick__go,
  .page-faq .rh-crumbs a {
    transition: none !important;
  }
}
</PAGE_CSS>>>