.page-faq {
  --faq-legend-w: 226px;
  --faq-gap: clamp(1rem, 2.4vw, 1.6rem);
  --faq-rule: rgba(92, 103, 99, 0.26);
  background: var(--paper);
  color: var(--ink-800);
}

.page-faq a {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 107, 87, 0.35);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq a:hover,
.page-faq a:focus-visible {
  color: var(--ink-800);
  border-bottom-color: var(--amber);
}

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

.page-faq :is(summary, .btn, .faq-legend__link):focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.4rem, 3.4vw, 2.4rem) 0 clamp(3.4rem, 7vw, 5.2rem);
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(110, 156, 146, 0.24), transparent 62%),
    linear-gradient(168deg, var(--paper) 0%, var(--mist) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: auto -12% -18% auto;
  width: clamp(260px, 46vw, 620px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(63, 107, 87, 0.28);
  box-shadow:
    0 0 0 28px rgba(63, 107, 87, 0.06),
    0 0 0 62px rgba(63, 107, 87, 0.045),
    0 0 0 104px rgba(63, 107, 87, 0.03);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: clamp(34px, 6vw, 64px);
  background: var(--ink-800);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-faq .breadcrumbs {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(1.2rem, 3vw, 2rem);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.4rem, 3.6vw, 2.8rem);
  align-items: end;
}

.page-faq .faq-hero__intro h1 {
  margin: 0.5rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.7rem, 4.6vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--ink-800);
}

.page-faq .faq-hero__lead {
  margin: 1rem 0 0;
  max-width: 46ch;
  font-size: clamp(0.95rem, 1.5vw, 1.06rem);
  line-height: 1.8;
  color: var(--ink-700);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.4rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--rock);
}

.page-faq .faq-hero__facts .num {
  font-family: var(--font-mono);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--amber);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.page-faq .faq-hero__actions .btn {
  border-bottom: 0;
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  clip-path: var(--cut-lg);
  border: 1px solid rgba(63, 107, 87, 0.28);
  background: var(--ink-800);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 三步自检 ---------- */
.page-faq .faq-triage {
  position: relative;
  padding: clamp(2.2rem, 5vw, 3.6rem) 0 clamp(2.4rem, 5.4vw, 4rem);
  overflow: hidden;
}

.page-faq .faq-triage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(112deg, transparent 0 46px, rgba(110, 156, 146, 0.07) 46px 47px);
  pointer-events: none;
}

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

.page-faq .triage-steps {
  display: grid;
  gap: var(--faq-gap);
  margin: clamp(1.4rem, 3vw, 2.2rem) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: triage;
}

.page-faq .triage-step {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem;
  background: rgba(217, 227, 222, 0.06);
  border: 1px solid rgba(110, 156, 146, 0.34);
  clip-path: var(--cut-sm);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .triage-step:hover {
  border-color: var(--amber);
  background: rgba(216, 155, 43, 0.09);
}

.page-faq .triage-step__n {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .triage-step__t {
  margin: 0.45rem 0 0.5rem;
  font-family: var(--font-head);
  font-size: clamp(1rem, 1.7vw, 1.14rem);
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .triage-step__p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: rgba(217, 227, 222, 0.82);
}

.page-faq .triage-step__link {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: var(--amber-soft);
  border-bottom: 1px solid rgba(216, 155, 43, 0.45);
}

.page-faq .triage-step__link:hover,
.page-faq .triage-step__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-faq .triage-lower {
  display: grid;
  gap: clamp(1.2rem, 3vw, 2rem);
  margin-top: clamp(1.6rem, 3.6vw, 2.6rem);
  align-items: start;
}

.page-faq .triage-media {
  margin: 0;
  border: 1px solid rgba(110, 156, 146, 0.3);
}

.page-faq .triage-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .triage-media .media-frame__caption {
  font-size: 0.76rem;
  color: rgba(217, 227, 222, 0.7);
}

.page-faq .triage-note {
  padding: 1.1rem 1.15rem;
  border-left: 2px solid var(--amber);
  background: rgba(8, 22, 19, 0.42);
}

.page-faq .triage-note p {
  margin: 0.55rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(217, 227, 222, 0.84);
}

.page-faq .triage-note .tag {
  margin: 0;
}

.page-faq .triage-note__link {
  color: var(--amber-soft);
  border-bottom: 1px solid rgba(216, 155, 43, 0.45);
}

.page-faq .triage-note__link:hover,
.page-faq .triage-note__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

/* ---------- 现象对照表 ---------- */
.page-faq .faq-tableband {
  padding: clamp(2rem, 4.6vw, 3.2rem) 0 clamp(2.2rem, 5vw, 3.6rem);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.87rem;
}

.page-faq .faq-table caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 0.7rem;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 0.8rem 0.9rem;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid rgba(92, 103, 99, 0.22);
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
  background: var(--ink-700);
  border-bottom: 2px solid var(--amber);
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  color: var(--ink-800);
  width: 30%;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(217, 227, 222, 0.55);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(216, 155, 43, 0.12);
}

/* ---------- 分类问答 ---------- */
.page-faq .faq-body-section {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0 clamp(2.6rem, 5.6vw, 4.2rem);
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper) 62%, var(--mist) 100%);
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(1.4rem, 3vw, 2.4rem);
  margin-top: clamp(1.2rem, 3vw, 2rem);
  align-items: start;
}

.page-faq .faq-legend {
  padding: 0.95rem 1rem;
  background: var(--ink-800);
  clip-path: var(--cut-sm);
}

.page-faq .faq-legend__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .faq-legend__list {
  display: flex;
  gap: 0.45rem;
  margin: 0;
  padding: 0 0 0.25rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-legend__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  white-space: nowrap;
  font-size: 0.82rem;
  color: var(--mist);
  border: 1px solid rgba(110, 156, 146, 0.38);
  border-bottom: 1px solid rgba(110, 156, 146, 0.38);
  clip-path: var(--cut-sm);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-legend__link .num {
  font-family: var(--font-mono);
  color: var(--amber);
}

.page-faq .faq-legend__link:hover,
.page-faq .faq-legend__link:focus-visible {
  color: var(--paper);
  background: var(--moss);
  border-color: var(--moss);
}

.page-faq .faq-legend__hint {
  margin: 0.7rem 0 0;
  font-size: 0.72rem;
  line-height: 1.7;
  color: rgba(217, 227, 222, 0.62);
}

.page-faq .faq-groups {
  display: grid;
  gap: clamp(1.6rem, 3.4vw, 2.6rem);
  min-width: 0;
}

.page-faq .qa-group {
  scroll-margin-top: 1.5rem;
}

.page-faq .qa-group__head {
  padding-left: 0.9rem;
  border-left: 3px solid var(--fog);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .qa-group:target .qa-group__head {
  border-left-color: var(--amber);
}

.page-faq .qa-group__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--rock);
}

.page-faq .qa-group__label .num {
  color: var(--amber);
  font-weight: 700;
}

.page-faq .qa-group__title {
  margin: 0.35rem 0 0.35rem;
  font-family: var(--font-head);
  font-size: clamp(1.06rem, 2vw, 1.32rem);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink-800);
}

.page-faq .qa-group__intro {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--rock);
}

.page-faq .qa-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin: 0.9rem 0 0;
  padding: 0.7rem 0.85rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-700);
  background: rgba(229, 103, 79, 0.1);
  border-left: 2px solid var(--coral);
}

.page-faq .qa-note .tag {
  margin: 0;
}

.page-faq .qa-list {
  margin-top: 0.9rem;
  border-top: 1px solid var(--faq-rule);
}

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

.page-faq .qa > summary {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.85rem 0.4rem 0.85rem 0.75rem;
  cursor: pointer;
  list-style: none;
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .qa > summary::-webkit-details-marker {
  display: none;
}

.page-faq .qa > summary:hover {
  background: rgba(217, 227, 222, 0.6);
  border-left-color: var(--moss);
}

.page-faq .qa[open] > summary {
  border-left-color: var(--amber);
  background: rgba(216, 155, 43, 0.08);
}

.page-faq .qa__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--fog);
}

.page-faq .qa[open] .qa__n {
  color: var(--amber);
}

.page-faq .qa__q {
  flex: 1 1 auto;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-800);
}

.page-faq .qa__q::after {
  content: "＋";
  float: right;
  margin-left: 0.6rem;
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--fog);
}

.page-faq .qa[open] .qa__q::after {
  content: "－";
  color: var(--amber);
}

.page-faq .qa__a {
  padding: 0.15rem 1.1rem 1.05rem 2.35rem;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--rock);
}

/* ---------- 联系我们之前 ---------- */
.page-faq .faq-prep {
  padding: clamp(2.2rem, 5vw, 3.6rem) 0 clamp(2.4rem, 5.4vw, 4rem);
  background-image:
    radial-gradient(circle at 82% 18%, rgba(63, 107, 87, 0.4), transparent 58%);
}

.page-faq .prep-grid {
  display: grid;
  gap: clamp(1.3rem, 3vw, 2.2rem);
  margin-top: clamp(1.3rem, 3vw, 2rem);
  align-items: start;
}

.page-faq .prep-list {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .prep-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  background: rgba(217, 227, 222, 0.05);
  border-left: 2px solid rgba(110, 156, 146, 0.55);
  clip-path: var(--cut-sm);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .prep-list li:hover {
  border-left-color: var(--amber);
}

.page-faq .prep-list__n {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  padding-top: 0.15rem;
}

.page-faq .prep-list__t {
  margin: 0;
  font-size: 0.93rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .prep-list__d {
  margin: 0.3rem 0 0;
  font-size: 0.83rem;
  line-height: 1.75;
  color: rgba(217, 227, 222, 0.78);
}

.page-faq .prep-card {
  padding: 1.15rem 1.2rem 1.25rem;
  background: rgba(242, 235, 221, 0.96);
  color: var(--ink-800);
  clip-path: var(--cut-lg);
  border-top: 3px solid var(--amber);
}

.page-faq .prep-card__head {
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-faq .prep-card__list {
  margin: 0;
  padding: 0;
}

.page-faq .prep-card__row {
  display: grid;
  gap: 0.15rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(92, 103, 99, 0.3);
}

.page-faq .prep-card__row:last-child {
  border-bottom: 0;
}

.page-faq .prep-card__row dt {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .prep-card__row dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--ink-800);
  word-break: break-word;
}

.page-faq .prep-card__row dd a {
  color: var(--moss);
  font-weight: 700;
}

.page-faq .prep-card__foot {
  margin: 0.9rem 0 0;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(92, 103, 99, 0.28);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .triage-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .triage-step:nth-child(2) {
    margin-top: 1.1rem;
  }

  .page-faq .triage-step:nth-child(3) {
    margin-top: 0.35rem;
  }

  .page-faq .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-faq .triage-lower {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }

  .page-faq .faq-body {
    grid-template-columns: var(--faq-legend-w) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.2rem);
  }

  .page-faq .faq-legend {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .faq-legend__list {
    display: grid;
    gap: 0.4rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-legend__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-faq .qa__a {
    padding-left: 2.6rem;
  }

  .page-faq .prep-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 1120px) {
  .page-faq .faq-hero__lead {
    font-size: 1.06rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq a,
  .page-faq .triage-step,
  .page-faq .faq-legend__link,
  .page-faq .qa > summary,
  .page-faq .qa-group__head,
  .page-faq .prep-list li {
    transition: none;
  }
}