.page-faq {
  --faq-panel: rgba(15, 39, 70, .72);
  --faq-hair: rgba(39, 70, 103, .72);
  background: var(--night);
  color: var(--body-text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: var(--edge);
  background:
    radial-gradient(92% 120% at 88% 4%, rgba(255, 106, 26, .26) 0%, rgba(255, 106, 26, 0) 60%),
    radial-gradient(70% 90% at 6% 98%, rgba(184, 255, 77, .10) 0%, rgba(184, 255, 77, 0) 62%),
    linear-gradient(118deg, var(--night-deep) 0%, var(--night) 46%, var(--deep) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(52%, 520px);
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--lime));
  opacity: .85;
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0 0 0 auto;
  width: min(62%, 780px);
  z-index: -1;
  opacity: .38;
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06) brightness(.82);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(52px, 9vw, 100px);
  padding-bottom: clamp(46px, 7vw, 76px);
}

.page-faq .faq-hero__inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 84px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--orange), var(--orange-soft));
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  max-width: 22ch;
  font-size: clamp(29px, 6.4vw, 56px);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 2.4vw, 17px);
  line-height: 1.88;
  color: var(--body-text);
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index li {
  display: block;
}

.page-faq .faq-index a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: var(--edge);
  border-radius: 999px;
  background: rgba(8, 26, 48, .62);
  color: var(--body-text);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 106, 26, .14);
  color: var(--white);
  transform: translateY(-2px);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--orange);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-block {
  padding-block: clamp(44px, 6vw, 72px);
  border-bottom: 1px solid var(--faq-hair);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-block__head {
  max-width: 70ch;
}

.page-faq .faq-block__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 3.8vw, 34px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .faq-block__desc {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 注册三步 ---------- */
.page-faq .step-rail {
  display: grid;
  gap: 14px;
  max-width: 940px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 18px;
  border: var(--edge);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(15, 39, 70, .94), rgba(8, 26, 48, .72));
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease), transform .18s var(--ease);
}

.page-faq .step-item:hover,
.page-faq .step-item:focus-within {
  border-color: rgba(255, 106, 26, .78);
  box-shadow: var(--shadow-1);
  transform: translateX(4px);
}

.page-faq .step-item__num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 46px);
  font-weight: 700;
  line-height: .95;
  letter-spacing: -.05em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-faq .step-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .step-item__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--body-text);
}

.page-faq .step-item__body a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 230, .45);
}

.page-faq .step-item__body a:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .accordion {
  margin-top: 30px;
  border-top: var(--edge);
}

.page-faq .accordion__item {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 4px;
  border: 0;
  background: transparent;
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: color .18s var(--ease);
}

.page-faq .accordion__trigger:hover {
  color: var(--orange-soft);
}

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

.page-faq .faq-q__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--orange);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__sign {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-left: auto;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--orange-soft);
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__sign::before {
  width: 14px;
  height: 1.5px;
}

.page-faq .faq-q__sign::after {
  width: 1.5px;
  height: 14px;
  transition: opacity .18s var(--ease);
}

.page-faq .accordion__trigger[aria-expanded="true"] .faq-q__sign::after {
  opacity: 0;
}

.page-faq .accordion__inner {
  padding: 0 4px 20px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--body-text);
}

.page-faq .accordion__inner p {
  margin: 0 0 10px;
}

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

.page-faq .accordion__inner a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 216, 230, .45);
}

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

/* ---------- 小屏分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 26px;
}

.page-faq .faq-split__media {
  margin: 0;
  padding: 10px;
  border: var(--edge);
  border-radius: var(--radius);
  background: rgba(15, 39, 70, .6);
}

.page-faq .faq-split__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: calc(var(--radius) - 6px);
  object-fit: cover;
}

.page-faq .faq-split__caption {
  margin: 10px 2px 2px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 联系支持 ---------- */
.page-faq .support-card {
  margin-top: 28px;
  padding: 24px 20px;
  border: var(--edge);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(255, 106, 26, .16), rgba(255, 106, 26, 0) 58%),
    linear-gradient(160deg, rgba(15, 39, 70, .96), rgba(8, 26, 48, .82));
  box-shadow: var(--shadow-1);
}

.page-faq .support-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .support-list {
  display: grid;
  gap: 14px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .support-list__item {
  display: grid;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-hair);
}

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

.page-faq .support-list__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq .support-list__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.6vw, 19px);
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
  font-variant-numeric: tabular-nums;
}

.page-faq .support-list__value a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 106, 26, .6);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .support-list__value a:hover {
  color: var(--orange-soft);
  border-bottom-color: var(--orange-soft);
}

.page-faq .support-card__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .support-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 760px) {
  .page-faq .step-item {
    padding: 24px 24px;
    gap: 22px;
  }

  .page-faq .accordion__trigger {
    padding: 20px 6px;
    font-size: 17px;
  }

  .page-faq .accordion__inner {
    padding: 0 46px 22px 40px;
  }

  .page-faq .support-card {
    padding: 30px 32px;
  }

  .page-faq .support-list__item {
    grid-template-columns: 110px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-split .accordion {
    margin-top: 8px;
  }

  .page-faq .faq-split__media {
    position: sticky;
    top: 96px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 719px) {
  .page-faq .faq-hero__media {
    width: 100%;
    opacity: .22;
    clip-path: polygon(0 30%, 100% 0, 100% 100%, 0 100%);
  }

  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-index a {
    font-size: 13px;
    padding: 8px 13px;
  }

  .page-faq .accordion__trigger {
    font-size: 15px;
    gap: 10px;
    align-items: flex-start;
  }

  .page-faq .faq-q__sign {
    margin-top: 3px;
  }

  .page-faq .faq-q__idx {
    padding-top: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-item,
  .page-faq .faq-index a,
  .page-faq .accordion__trigger,
  .page-faq .faq-q__sign::after {
    transition: none;
  }

  .page-faq .step-item:hover,
  .page-faq .step-item:focus-within,
  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    transform: none;
  }
}