.page-faq {
  background: var(--ink-900);
  color: var(--text-100);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  margin-bottom: clamp(18px, 3vw, 28px);
}
.page-faq .faq-crumb__link {
  color: var(--muted-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .faq-crumb__link:hover,
.page-faq .faq-crumb__link:focus-visible {
  color: var(--teal-400);
  border-bottom-color: var(--teal-400);
}
.page-faq .faq-crumb__sep {
  color: var(--line-500);
}
.page-faq .faq-crumb__current {
  color: var(--amber-400);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 5vw, 56px);
  background:
    radial-gradient(120% 90% at 8% -20%, rgba(69, 240, 208, 0.14), transparent 58%),
    radial-gradient(90% 80% at 96% 0%, rgba(255, 177, 59, 0.1), transparent 55%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
  border-bottom: 2px solid var(--line-500);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(244, 250, 250, 0.035) 0px,
    rgba(244, 250, 250, 0.035) 1px,
    transparent 1px,
    transparent 4px
  );
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--teal-400), var(--amber-400) 60%, transparent);
  opacity: 0.85;
}
.page-faq .faq-hero .wrap {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.2vw, 52px);
  line-height: 1.14;
  letter-spacing: 0.02em;
  margin: 12px 0 0;
  max-width: 20ch;
  text-wrap: balance;
}
.page-faq .faq-hero__lead {
  margin: clamp(14px, 2.4vw, 20px) 0 0;
  max-width: 64ch;
  color: var(--muted-300);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
}

/* ---------- 速查条 ---------- */
.page-faq .faq-quick {
  margin-top: clamp(24px, 4vw, 40px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.page-faq .faq-quick__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 13px;
  border: 2px solid var(--line-500);
  background: rgba(10, 32, 50, 0.72);
  color: var(--text-100);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-visible {
  border-color: var(--teal-400);
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 rgba(69, 240, 208, 0.2);
  outline: none;
}
.page-faq .faq-quick__icon {
  flex: none;
  color: var(--teal-400);
  margin-top: 2px;
}
.page-faq .faq-quick__item:nth-child(3) .faq-quick__icon {
  color: var(--amber-400);
}
.page-faq .faq-quick__label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.page-faq .faq-quick__count {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  padding: clamp(30px, 5vw, 64px) 0 clamp(48px, 7vw, 88px);
}

/* ---------- 侧栏目录 ---------- */
.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted-300);
  text-transform: uppercase;
}
.page-faq .faq-toc {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px 14px;
}
.page-faq .faq-toc__item {
  margin: 0;
}
.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0 9px 12px;
  border-left: 2px solid var(--line-500);
  color: var(--text-100);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-faq .faq-toc__link .mono {
  color: var(--amber-400);
  font-size: 11px;
  letter-spacing: 0.08em;
}
.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  border-left-color: var(--teal-400);
  color: var(--teal-400);
  background: rgba(69, 240, 208, 0.06);
  outline: none;
}

.page-faq .faq-side__card {
  border: 2px solid var(--teal-700);
  background: linear-gradient(160deg, rgba(15, 142, 128, 0.16), rgba(10, 32, 50, 0.9));
  padding: 16px;
  box-shadow: 6px 6px 0 rgba(6, 23, 37, 0.85);
}
.page-faq .faq-side__card-label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--teal-400);
  text-transform: uppercase;
}
.page-faq .faq-email {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.9vw, 16px);
  line-height: 1.5;
  color: var(--amber-400);
  word-break: break-all;
}
.page-faq .faq-side__card-text {
  margin: 10px 0 14px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted-300);
}
.page-faq .faq-side__card-btn {
  display: inline-block;
  font-size: 12px;
  padding: 8px 12px;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.page-faq .faq-section + .faq-section {
  margin-top: clamp(36px, 6vw, 68px);
  padding-top: clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--line-500);
}
.page-faq .faq-section__head {
  border-left: 4px solid var(--amber-400);
  padding-left: clamp(12px, 2.4vw, 18px);
  margin-bottom: clamp(18px, 3vw, 26px);
}
.page-faq .faq-section__num {
  display: block;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--amber-400);
}
.page-faq .faq-section h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.25;
  letter-spacing: 0.02em;
  margin: 8px 0 10px;
}
.page-faq .faq-section__head p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted-300);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(18px, 3vw, 26px);
  border: 2px solid var(--line-500);
  background: var(--ink-800);
  box-shadow: 8px 8px 0 rgba(6, 23, 37, 0.9);
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  border-top: 1px solid var(--line-500);
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted-300);
  letter-spacing: 0.02em;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-bottom: 1px solid var(--line-500);
}
.page-faq .faq-item {
  position: relative;
  border-top: 1px solid var(--line-500);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: transparent;
  transition: background 0.22s var(--ease);
}
.page-faq .faq-item[open]::before {
  background: var(--teal-400);
}
.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  display: block;
  padding: 15px 44px 15px 14px;
  transition: background 0.2s var(--ease);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  background: rgba(69, 240, 208, 0.06);
  outline: none;
}
.page-faq .faq-item summary h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.9vw, 17px);
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--text-100);
  transition: color 0.2s var(--ease);
}
.page-faq .faq-item summary:hover h3 {
  color: var(--teal-400);
}
.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--teal-400);
}
.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--amber-400);
}
.page-faq .faq-a {
  padding: 0 14px 20px 14px;
  color: var(--muted-300);
  font-size: 15px;
  line-height: 1.85;
}
.page-faq .faq-a p {
  margin: 0 0 10px;
}
.page-faq .faq-a p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-a strong {
  color: var(--text-100);
}
.page-faq .faq-a a {
  color: var(--teal-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-note {
  margin: 12px 0 0;
  border-left: 3px solid var(--amber-400);
  background: rgba(255, 177, 59, 0.09);
  padding: 10px 13px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--paper-100);
}

/* ---------- 费用表 ---------- */
.page-faq .faq-table-wrap {
  margin: 12px 0 4px;
  border: 1px solid var(--line-500);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-faq .faq-table {
  width: 100%;
  min-width: 400px;
  border-collapse: collapse;
  font-size: 13.5px;
}
.page-faq .faq-table th {
  text-align: left;
  padding: 9px 12px;
  background: var(--ink-700);
  color: var(--teal-400);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.page-faq .faq-table td {
  padding: 11px 12px;
  border-top: 1px solid var(--line-500);
  color: var(--muted-300);
  line-height: 1.6;
  vertical-align: top;
}
.page-faq .faq-table td:first-child {
  color: var(--text-100);
  font-weight: 600;
  white-space: nowrap;
}
.page-faq .faq-table td.cost {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--amber-400);
  white-space: nowrap;
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-bottom: clamp(18px, 3vw, 26px);
}
.page-faq .faq-channel {
  border: 2px solid var(--line-500);
  background: var(--ink-800);
  padding: 18px;
  box-shadow: 6px 6px 0 rgba(6, 23, 37, 0.9);
}
.page-faq .faq-channel__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted-300);
  text-transform: uppercase;
}
.page-faq .faq-channel__phone {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3.6vw, 26px);
  letter-spacing: 0.04em;
  color: var(--teal-400);
}
.page-faq .faq-channel__text {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted-300);
}

.page-faq .faq-next {
  margin-top: clamp(24px, 4vw, 36px);
  border: 2px solid var(--line-500);
  background:
    linear-gradient(115deg, rgba(69, 240, 208, 0.12), transparent 55%),
    var(--ink-700);
  padding: clamp(18px, 3vw, 26px);
}
.page-faq .faq-next__text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-100);
  max-width: 54ch;
}
.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .faq-support {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-quick__item {
    padding: 14px 15px;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-toc {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-faq .faq-item summary {
    padding: 17px 48px 17px 18px;
  }
  .page-faq .faq-a {
    padding: 0 18px 22px 18px;
  }
  .page-faq .faq-table {
    min-width: 0;
    font-size: 14px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .page-faq .faq-layout {
    grid-template-columns: 250px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-side__inner {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }
  .page-faq .faq-hero h1 {
    max-width: 24ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .faq-item::before,
  .page-faq .faq-toc__link,
  .page-faq .faq-crumb__link {
    transition: none;
  }
  .page-faq .faq-quick__item:hover,
  .page-faq .faq-quick__item:focus-visible {
    transform: none;
  }
}