.page-faq {
  --faq-pad: clamp(0.95rem, 3vw, 1.15rem);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq h1,
.page-faq h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.22;
}

.page-faq p {
  margin: 0;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 7vw, 4.4rem) 0 clamp(2.2rem, 6vw, 3.8rem);
  color: var(--paper-white);
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(100, 221, 229, 0.2) 0%, rgba(100, 221, 229, 0) 58%),
    linear-gradient(158deg, var(--ink) 6%, var(--river-deep) 64%, var(--river) 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 46%;
  pointer-events: none;
  background-image: repeating-linear-gradient(96deg, rgba(100, 221, 229, 0.15) 0 1px, transparent 1px 22px);
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 72%);
  mask-image: linear-gradient(to bottom, transparent, #000 72%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .eyebrow {
  margin: 0 0 0.9rem;
  color: var(--river-bright);
  font-family: var(--font-num);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
}

.page-faq .faq-hero__title {
  max-width: 16em;
  margin-bottom: 1rem;
  font-size: clamp(2rem, 7.2vw, 3.9rem);
  color: var(--paper-white);
}

.page-faq .faq-hero__lede {
  max-width: 46ch;
  font-size: clamp(0.94rem, 2.4vw, 1.04rem);
  line-height: 1.88;
  color: rgba(244, 239, 227, 0.84);
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.42rem 0.8rem;
  border: 1px solid rgba(244, 239, 227, 0.34);
  border-radius: 999px;
  color: var(--paper);
  font-size: 0.82rem;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  border-color: var(--river-bright);
  background: rgba(100, 221, 229, 0.14);
  color: var(--river-bright);
}

.page-faq .faq-index__num {
  font-family: var(--font-num);
  font-size: 0.72rem;
  color: var(--gold);
}

/* ---------- 面包屑 ---------- */

.page-faq .faq-crumb {
  padding: 0.7rem 0;
  border-bottom: var(--hair);
  background: var(--paper);
}

.page-faq .faq-crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8rem;
}

.page-faq .faq-crumb .breadcrumb__link {
  color: var(--river);
  text-decoration: none;
}

.page-faq .faq-crumb .breadcrumb__link:hover {
  text-decoration: underline;
}

.page-faq .faq-crumb .breadcrumb__sep {
  color: var(--ink-30);
  font-family: var(--font-num);
}

.page-faq .faq-crumb [aria-current="page"] {
  color: var(--ink-60);
}

/* ---------- 主体两栏 ---------- */

.page-faq .faq-body {
  padding: clamp(1.7rem, 5vw, 3.2rem) 0 clamp(2.6rem, 6vw, 4.6rem);
}

.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 4vw, 2.8rem);
}

/* ---------- 左侧分类栏 ---------- */

.page-faq .faq-rail {
  padding: 1rem 1.05rem 1.15rem;
  border: var(--rule);
  background: var(--paper-white);
  box-shadow: 5px 5px 0 var(--ink-30);
}

.page-faq .faq-rail__title {
  margin: 0 0 0.65rem;
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bamboo);
}

.page-faq .faq-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.45rem 0.15rem;
  border-bottom: var(--hair);
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-faq .faq-rail__list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  padding-left: 0.45rem;
  color: var(--river);
}

.page-faq .faq-rail__list a span {
  flex: none;
  min-width: 1.4rem;
  font-family: var(--font-num);
  font-size: 0.74rem;
  color: var(--cinnabar);
}

.page-faq .faq-rail__note {
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--ink-30);
  font-size: 0.76rem;
  line-height: 1.72;
  color: var(--ink-60);
}

/* ---------- 问答章节 ---------- */

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(2.1rem, 5vw, 3.2rem);
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding-bottom: 0.55rem;
  border-bottom: 3px solid var(--ink);
}

.page-faq .faq-sec__num {
  flex: none;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--river);
}

.page-faq .faq-sec__title {
  font-size: clamp(1.2rem, 3.4vw, 1.6rem);
  color: var(--ink);
}

.page-faq .faq-sec--lead .faq-sec__title {
  font-size: clamp(1.35rem, 4vw, 1.95rem);
}

.page-faq .faq-sec__lede {
  max-width: 46ch;
  margin-top: 0.85rem;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--ink-60);
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa {
  margin-top: 0.7rem;
  border: 2px solid var(--ink);
  background: var(--paper-white);
  transition: box-shadow 0.25s var(--ease);
}

.page-faq .qa[open] {
  box-shadow: 6px 6px 0 var(--river);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.85rem var(--faq-pad);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.97rem;
  line-height: 1.55;
  color: var(--ink);
}

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

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--river);
  transform: translateY(0.08em);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__num {
  flex: none;
  padding: 0.1rem 0.34rem;
  border: 1px solid rgba(198, 74, 54, 0.35);
  border-radius: 2px;
  background: rgba(198, 74, 54, 0.1);
  font-family: var(--font-num);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--cinnabar);
}

.page-faq .qa__a {
  margin: 0 var(--faq-pad);
  padding: 0.8rem 0 1rem;
  border-top: 1px dashed var(--mist);
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .qa__a p + p {
  margin-top: 0.55rem;
}

.page-faq .qa__a a {
  color: var(--river);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--cinnabar);
}

.page-faq .faq-sec--lead .qa__q {
  font-size: 1.04rem;
  padding: 1rem 1.05rem;
}

.page-faq .faq-sec--lead .qa__a {
  margin: 0 1.05rem;
  font-size: 0.95rem;
}

/* ---------- 步骤列表 ---------- */

.page-faq .qa__steps {
  counter-reset: faqstep;
  display: grid;
  gap: 0.4rem;
  margin: 0.55rem 0 0.15rem;
  padding: 0;
  list-style: none;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 1.75rem;
  line-height: 1.72;
}

.page-faq .qa__steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep);
  position: absolute;
  top: 0.22rem;
  left: 0;
  display: grid;
  place-items: center;
  width: 1.2rem;
  height: 1.2rem;
  border: 1px solid var(--river);
  border-radius: 50%;
  font-family: var(--font-num);
  font-size: 0.66rem;
  line-height: 1;
  color: var(--river);
}

/* ---------- 旁注 ---------- */

.page-faq .faq-note {
  margin-top: 0.9rem;
  padding: 0.8rem 0.95rem;
  border-left: 4px solid var(--bamboo);
  background: rgba(92, 122, 78, 0.09);
  font-size: 0.84rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-note b {
  color: var(--bamboo);
}

.page-faq .faq-note a {
  color: var(--river);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 示意图 ---------- */

.page-faq .faq-figure {
  max-width: 720px;
  margin: 1.2rem 0 0;
  padding: 0.55rem;
  border: 2px solid var(--ink);
  background: var(--paper-white);
  box-shadow: 6px 6px 0 var(--ink-30);
}

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

.page-faq .faq-figure__cap {
  margin: 0.55rem 0.15rem 0;
  font-size: 0.77rem;
  line-height: 1.7;
  color: var(--ink-60);
}

/* ---------- 联系方式 ---------- */

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  margin-top: 1rem;
}

.page-faq .faq-contact__card {
  padding: 0.95rem 1.05rem;
  border: 2px solid var(--ink);
  background: var(--paper-white);
  box-shadow: 5px 5px 0 var(--ink-30);
}

.page-faq .faq-contact__label {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-num);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--river);
}

.page-faq .faq-contact__value {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__hint {
  margin-top: 0.4rem;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink-60);
}

/* ---------- 行动区 ---------- */

.page-faq .faq-cta {
  margin-top: clamp(1.8rem, 4vw, 2.6rem);
  padding: clamp(1.2rem, 4vw, 1.9rem);
  border: 2px solid var(--ink);
  background: linear-gradient(152deg, var(--river-deep) 0%, var(--river) 100%);
  box-shadow: 7px 7px 0 var(--ink);
}

.page-faq .faq-cta__title {
  margin-bottom: 0.5rem;
  font-size: clamp(1.12rem, 3vw, 1.4rem);
  color: var(--paper-white);
}

.page-faq .faq-cta__text {
  max-width: 42ch;
  margin-bottom: 1rem;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(244, 239, 227, 0.86);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-cta .btn {
  display: inline-block;
  padding: 0.6rem 1.15rem;
  border: 2px solid transparent;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.86rem;
  line-height: 1.4;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-cta .btn--solid {
  border-color: var(--cinnabar);
  background: var(--cinnabar);
  color: var(--paper-white);
}

.page-faq .faq-cta .btn--solid:hover,
.page-faq .faq-cta .btn--solid:focus-visible {
  background: #a83c2b;
  border-color: #a83c2b;
}

.page-faq .faq-cta .btn--ghost {
  border-color: var(--river-bright);
  background: transparent;
  color: var(--river-bright);
}

.page-faq .faq-cta .btn--ghost:hover,
.page-faq .faq-cta .btn--ghost:focus-visible {
  background: rgba(100, 221, 229, 0.16);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-body__inner {
    grid-template-columns: minmax(200px, 250px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.2rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-sec__lede {
    font-size: 0.95rem;
  }

  .page-faq .qa__q {
    font-size: 1rem;
    padding: 0.95rem 1.1rem;
  }

  .page-faq .qa__a {
    margin: 0 1.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index a,
  .page-faq .faq-rail__list a,
  .page-faq .qa,
  .page-faq .faq-cta .btn {
    transition: none;
  }
}