.page-faq {
  --faq-radius: 18px;
  --faq-line-soft: rgba(150, 166, 160, 0.14);
  padding-bottom: 88px;
}

.page-faq .faq-crumb {
  padding-top: 20px;
}

.page-faq .faq-hero {
  padding-top: 26px;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero-main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.012em;
  margin: 12px 0 0;
  color: var(--text);
  text-wrap: balance;
}

.page-faq .faq-hero-main .lede {
  margin: 20px 0 0;
  max-width: 640px;
  color: var(--body-soft);
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-hero-side {
  border-top: 2px solid var(--orange);
  padding-top: 16px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-content: start;
}

.page-faq .faq-hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .faq-hero-stat .stat-num {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-faq .faq-hero-stat .stat-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.page-faq .faq-hero-note {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 13px;
  line-height: 1.72;
  color: var(--grey);
}

.page-faq .faq-sec-head {
  margin-bottom: 22px;
}

.page-faq .faq-sec-idx {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 8px;
}

.page-faq .faq-sec-head h2 {
  margin: 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.18;
}

.page-faq .faq-sec-sub {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--grey);
}

/* 高频问题卡片 */
.page-faq .faq-hot-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-hot-card {
  position: relative;
  display: grid;
  gap: 7px;
  padding: 20px 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: linear-gradient(158deg, rgba(12, 33, 26, 0.96), rgba(8, 24, 19, 0.92));
  text-decoration: none;
  color: var(--text);
  overflow: hidden;
  transition: border-color 0.12s ease, transform 0.12s ease, background 0.12s ease;
}

.page-faq .faq-hot-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
  transform: scaleY(0.35);
  transform-origin: top;
  opacity: 0;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

.page-faq .faq-hot-card:nth-child(2)::before { background: var(--orange); }
.page-faq .faq-hot-card:nth-child(3)::before { background: var(--blue); }
.page-faq .faq-hot-card:nth-child(4)::before { background: var(--violet); }

.page-faq .faq-hot-card:hover,
.page-faq .faq-hot-card:focus-visible {
  border-color: var(--line-strong);
  background: linear-gradient(158deg, rgba(14, 40, 32, 0.98), rgba(9, 27, 21, 0.94));
  transform: translateY(-2px);
}

.page-faq .faq-hot-card:hover::before,
.page-faq .faq-hot-card:focus-visible::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-hot-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--grey);
}

.page-faq .faq-hot-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.25;
  letter-spacing: 0.005em;
}

.page-faq .faq-hot-desc {
  font-size: 13px;
  line-height: 1.66;
  color: var(--grey);
  padding-right: 22px;
}

.page-faq .faq-hot-go {
  position: absolute;
  right: 18px;
  bottom: 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--orange);
  transition: transform 0.12s ease;
}

.page-faq .faq-hot-card:hover .faq-hot-go {
  transform: translateX(4px);
}

/* 图片容器 */
.page-faq .faq-media {
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--panel-soft);
  margin-bottom: 22px;
}

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

/* 下载步骤 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-faq .faq-step h3 {
  margin: 0;
  font-size: 18px;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--body-soft);
}

/* 入口变更时间线 */
.page-faq .faq-timeline {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--blue) 55%, var(--violet));
  opacity: 0.55;
}

.page-faq .faq-tl-item {
  position: relative;
  padding: 0 0 26px 32px;
}

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

.page-faq .faq-tl-item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-faq .faq-tl-item:nth-child(2)::before { border-color: var(--violet); }
.page-faq .faq-tl-item:nth-child(3)::before { border-color: var(--orange); }
.page-faq .faq-tl-item:nth-child(4)::before { border-color: var(--blue); }

.page-faq .faq-tl-tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-faq .faq-tl-tag--violet { background: var(--violet); color: #0A0A1A; }
.page-faq .faq-tl-tag--orange { background: var(--orange); color: var(--ink); }
.page-faq .faq-tl-tag--blue { background: var(--blue); color: var(--ink); }

.page-faq .faq-tl-item h3 {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .faq-tl-item p {
  margin: 0;
  max-width: 640px;
  font-size: 14px;
  line-height: 1.74;
  color: var(--body-soft);
}

/* 问答区 */
.page-faq .faq-qa-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-faq .faq-rail-title {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey);
  margin: 0 0 10px;
}

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

.page-faq .faq-rail-list a {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  color: var(--grey);
  text-decoration: none;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--blue);
  border-color: var(--blue);
}

.page-faq .faq-group {
  scroll-margin-top: 88px;
  margin-bottom: 34px;
}

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

.page-faq .faq-group > h3 {
  margin: 0 0 14px;
  font-size: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .disclosure {
  border: 1px solid var(--line);
  border-left: 3px solid transparent;
  border-radius: 14px;
  background: var(--panel-soft);
  margin-bottom: 10px;
  transition: border-color 0.12s ease, background 0.12s ease;
}

.page-faq .disclosure:hover {
  border-color: var(--line-strong);
}

.page-faq .disclosure:has(.disclosure-btn[aria-expanded="true"]) {
  border-left-color: var(--cyan);
  background: var(--panel);
}

.page-faq .disclosure-btn {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  background: none;
  border: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
}

.page-faq .disclosure-btn:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -2px;
  border-radius: 14px;
}

.page-faq .disclosure-icon {
  flex: 0 0 auto;
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
}

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

.page-faq .disclosure-icon::before { width: 8px; height: 1.5px; }
.page-faq .disclosure-icon::after { width: 1.5px; height: 8px; transition: opacity 0.12s ease; }

.page-faq .disclosure-btn[aria-expanded="true"] .disclosure-icon::after {
  opacity: 0;
}

.page-faq .disclosure-panel {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-soft);
}

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

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

/* 联系支援 */
.page-faq .faq-support-wrap {
  scroll-margin-top: 88px;
}

.page-faq .faq-support {
  display: grid;
  gap: 26px;
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(255, 139, 61, 0.13), transparent 62%),
    radial-gradient(100% 130% at 0% 100%, rgba(57, 242, 200, 0.1), transparent 60%),
    var(--panel);
}

.page-faq .faq-support h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.22;
}

.page-faq .faq-support-lead {
  margin: 0;
  max-width: 620px;
  font-size: 14px;
  line-height: 1.76;
  color: var(--body-soft);
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .faq-support-side {
  display: grid;
  gap: 0;
  align-content: start;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-faq .faq-support-line {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 10px 0;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-support-k {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-faq .faq-support-v {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  word-break: break-word;
  user-select: all;
}

.page-faq a.faq-support-v:hover {
  color: var(--cyan);
}

.page-faq .faq-support-note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.72;
  color: var(--grey);
}

@media (min-width: 640px) {
  .page-faq .faq-hot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -16px;
    top: 22px;
    font-family: var(--font-mono);
    font-size: 15px;
    color: var(--orange);
  }

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 40px;
    padding: 34px 32px;
  }

  .page-faq .faq-support-side {
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 28px;
  }
}

@media (min-width: 1024px) {
  .page-faq {
    padding-bottom: 112px;
  }

  .page-faq .faq-qa-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--topbar-h) + 26px);
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }

  .page-faq .faq-rail-list a {
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 10px 0 10px 14px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-rail-list a:hover,
  .page-faq .faq-rail-list a:focus-visible {
    border-left-color: var(--cyan);
  }

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

  .page-faq .faq-hot-card {
    padding: 24px 20px 22px 24px;
  }

  .page-faq .faq-hot-desc {
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot-card,
  .page-faq .faq-hot-go,
  .page-faq .disclosure,
  .page-faq .disclosure-icon::after,
  .page-faq .faq-rail-list a {
    transition: none;
  }

  .page-faq .faq-hot-card:hover,
  .page-faq .faq-hot-card:focus-visible {
    transform: none;
  }

  .page-faq .faq-hot-card:hover .faq-hot-go {
    transform: none;
  }
}