.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 40px) 0 0;
  background-color: var(--ink);
  background-image:
    radial-gradient(115% 70% at 88% -8%, rgba(230, 57, 70, 0.34), transparent 60%),
    repeating-linear-gradient(112deg, rgba(246, 241, 231, 0.055) 0 1px, transparent 1px 26px);
  color: var(--paper);
  overflow: hidden;
}

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 30px;
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.58);
}

.page-faq .crumbs a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}

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

.page-faq .faq-hero .eyebrow {
  display: block;
  margin: 0 0 16px;
  font-family: var(--font-narrow);
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 22px;
  max-width: 15em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(29px, 5.1vw, 56px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: rgba(246, 241, 231, 0.76);
}

/* 高频三问 */
.page-faq .faq-hot {
  margin-top: clamp(34px, 4.6vw, 60px);
  padding-top: 28px;
  padding-bottom: clamp(36px, 4.6vw, 60px);
  border-top: 1px solid var(--line-ink);
}

.page-faq .faq-hot__title {
  margin: 0 0 20px;
  font-family: var(--font-narrow);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.5);
}

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

.page-faq .faq-hot__list li {
  padding-left: 16px;
  border-left: 2px solid var(--red);
}

.page-faq .faq-hot__no {
  display: block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-hot__q {
  margin: 6px 0 8px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}

.page-faq .faq-hot__a {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: rgba(246, 241, 231, 0.66);
}

/* ---------- 主体：索引 + 问答 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-top: clamp(36px, 5vw, 72px);
  padding-bottom: clamp(48px, 6vw, 92px);
}

.page-faq .faq-side__title {
  margin: 0 0 14px;
  font-family: var(--font-narrow);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-faq .faq-side__list {
  margin: 0 0 18px;
  padding: 0 0 4px;
  list-style: none;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-side__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-side__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  white-space: nowrap;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-side__list a:hover {
  border-color: var(--red);
  color: var(--red-dark);
}

.page-faq .faq-side__no {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--red);
}

.page-faq .faq-side__cta {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--red-dark);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-faq .faq-side__cta:hover {
  color: var(--red);
}

/* 章节 */
.page-faq .faq-sec {
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding-top: clamp(26px, 3.4vw, 44px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-sec:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}

.page-faq .faq-sec__no {
  font-family: var(--font-data);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--red);
  border: 1px solid currentColor;
  border-radius: 2px;
  padding: 2px 6px;
}

.page-faq .faq-sec__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.4vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-sec__intro {
  grid-column: 1 / -1;
  margin: 0;
  max-width: 46em;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* 手风琴 */
.page-faq .faq-list {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item__q {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin: 0;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(14.5px, 1.3vw, 16.5px);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color 0.2s var(--ease);
}

.page-faq .faq-item__q::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover {
  color: var(--red-dark);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 4px;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 6px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--red);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-faq .faq-item__icon::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-item__icon::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__a {
  max-width: 48em;
  padding: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.9;
  color: #3D3A34;
}

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

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

.page-faq .faq-item__a ul {
  margin: 4px 0 12px;
  padding-left: 18px;
}

.page-faq .faq-item__a li {
  margin-bottom: 6px;
}

.page-faq .faq-item__a strong {
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-item__a a,
.page-faq .faq-contact__desc a,
.page-faq .faq-contact__more a {
  color: var(--red-dark);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 43, 55, 0.42);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-contact__more a:hover {
  border-bottom-color: var(--red);
}

/* 步骤 */
.page-faq .faq-steps {
  counter-reset: step;
  display: grid;
  gap: 8px;
  margin: 12px 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 4px;
  align-items: baseline;
  margin: 0;
}

.page-faq .faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-data);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--red);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 24px 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--cool);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 9px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 联系区 ---------- */
.page-faq .faq-contact {
  background: var(--cool);
  border-top: 4px solid var(--red);
  padding: clamp(40px, 5.5vw, 76px) 0 clamp(44px, 6vw, 84px);
}

.page-faq .faq-contact__inner {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

.page-faq .faq-contact .eyebrow--dark {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-narrow);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--red-dark);
}

.page-faq .faq-contact h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(23px, 2.8vw, 34px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-contact__desc {
  margin: 0 0 12px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3D3A34;
}

.page-faq .faq-contact__more {
  margin: 0;
  font-size: 13.5px;
  color: var(--gray);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__label {
  grid-column: 1 / -1;
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-faq .faq-contact__value {
  font-family: var(--font-data);
  font-size: clamp(14px, 1.4vw, 17px);
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__value--text {
  font-family: var(--font-body);
  font-size: 14.5px;
}

/* 复制按钮 */
.page-faq .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  justify-self: end;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  font-family: var(--font-body);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: var(--red);
  background: rgba(230, 57, 70, 0.07);
  color: var(--red-dark);
}

.page-faq .copy-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-faq .copy-btn .copy-btn__hint {
  display: none;
}

.page-faq .copy-btn.is-copied {
  border-color: var(--red);
  color: var(--red-dark);
}

.page-faq .copy-btn.is-copied .copy-btn__text {
  display: none;
}

.page-faq .copy-btn.is-copied .copy-btn__hint {
  display: inline;
}

/* ---------- 断点 ---------- */
@media (min-width: 880px) {
  .page-faq .faq-hot__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 36px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(44px, 5vw, 96px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: calc(var(--header-h) + 30px);
    align-self: start;
  }

  .page-faq .faq-side__list {
    display: block;
    overflow: visible;
    padding: 0;
    margin-bottom: 22px;
  }

  .page-faq .faq-side__list li + li {
    margin-top: 2px;
  }

  .page-faq .faq-side__list a {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 9px 0 9px 13px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    font-size: 13.5px;
    white-space: normal;
    transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
  }

  .page-faq .faq-side__list a:hover {
    border-left-color: var(--red);
    background: rgba(230, 57, 70, 0.05);
    color: var(--red-dark);
  }

  .page-faq .faq-sec__head {
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-contact__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(40px, 6vw, 88px);
    align-items: start;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-hero {
    padding-top: calc(var(--header-h) + 26px);
  }

  .page-faq .faq-contact__list li {
    grid-template-columns: minmax(0, 1fr);
    justify-items: start;
    gap: 8px;
  }

  .page-faq .copy-btn {
    justify-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}