.page-faq {
  --faq-gap: clamp(20px, 3.5vw, 40px);
  --faq-pad: clamp(40px, 6vw, 84px);
}

.page-faq :is(a, button, summary):focus-visible {
  outline: 3px solid var(--teal-700);
  outline-offset: 2px;
}

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

.page-faq .breadcrumb {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(20px, 3vw, 34px) 0 var(--faq-pad);
  background: var(--sand-100);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 7.6vw, 82px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
  color: var(--ink-600);
}

.page-faq .faq-hero__index {
  list-style: none;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 18px 0 0;
  display: grid;
  gap: 18px;
  border-top: var(--border-heavy);
}

.page-faq .faq-hero__index a {
  display: block;
  text-decoration: none;
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 180ms var(--ease);
}

.page-faq .faq-hero__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(42px, 6.4vw, 70px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink-900);
  transition: -webkit-text-stroke-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-hero__index a:hover .faq-hero__num,
.page-faq .faq-hero__index a:focus-visible .faq-hero__num {
  -webkit-text-stroke-color: var(--ember-600);
  transform: translateY(-2px);
}

.page-faq .faq-hero__index a:hover {
  color: var(--teal-700);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 32px);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: var(--border-heavy);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__figure img {
  width: 100%;
}

.page-faq .faq-hero__caption {
  padding: 12px 16px 14px;
  border-top: 1px solid var(--ink-900);
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--ink-600);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  padding: clamp(38px, 5vw, 70px) 0;
  background: var(--sand-050);
  border-top: var(--border-heavy);
  border-bottom: var(--border-heavy);
}

.page-faq .faq-steps__figure {
  margin: var(--faq-gap) 0 0;
  border: var(--border-heavy);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-steps__figure img {
  width: 100%;
}

.page-faq .faq-steps__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--ink-900);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink-600);
}

.page-faq .step-list {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 16px;
  padding-top: 20px;
  border-top: var(--border-heavy);
}

.page-faq .step::before {
  content: "";
  position: absolute;
  top: -9px;
  left: 0;
  width: 12px;
  height: 12px;
  border: 3px solid var(--ink-900);
  border-radius: 50%;
  background: var(--teal-700);
}

.page-faq .step__num {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(54px, 8vw, 92px);
  line-height: 0.86;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 2px var(--ink-900);
  transition: -webkit-text-stroke-color 200ms var(--ease);
}

.page-faq .step:hover .step__num {
  -webkit-text-stroke-color: var(--ember-600);
}

.page-faq .step__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-faq .step__text {
  margin: 10px 0 0;
  max-width: 46ch;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-faq .step__check {
  margin: 14px 0 0;
  max-width: 46ch;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-900);
}

.page-faq .step__check .tag {
  margin-right: 8px;
  vertical-align: 1px;
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  padding: clamp(38px, 5vw, 70px) 0;
}

.page-faq .faq-index__lead {
  margin: var(--faq-gap) 0 0;
  max-width: 58ch;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
  color: var(--ink-600);
}

.page-faq .index-wall {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 1px;
  background: var(--ink-900);
  border: var(--border-heavy);
  box-shadow: var(--shadow-hard);
}

.page-faq .index-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.8vw, 26px);
  text-decoration: none;
  color: var(--ink-900);
  transition: background-color 180ms var(--ease);
}

.page-faq .index-card--a { background: var(--sand-300); }
.page-faq .index-card--b { background: var(--sand-050); }
.page-faq .index-card--c { background: var(--ember-200); }
.page-faq .index-card--d { background: var(--teal-300); }

.page-faq .index-card__count {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(38px, 5vw, 56px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-faq .index-card__name {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: 0.02em;
}

.page-faq .index-card__desc {
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-faq .index-card:hover {
  background: var(--paper);
}

.page-faq .index-card:hover .index-card__name {
  color: var(--teal-700);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-qa {
  padding: clamp(38px, 5vw, 70px) 0;
  background: var(--sand-050);
  border-top: var(--border-heavy);
}

.page-faq .qa-list {
  margin: var(--faq-gap) 0 0;
  border-bottom: var(--border-heavy);
}

.page-faq .qa-item {
  border-top: var(--border-heavy);
  background: transparent;
  transition: background-color 200ms var(--ease);
}

.page-faq .qa-item[open] {
  background: var(--paper);
}

.page-faq .qa-item__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(4px, 1.4vw, 16px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.6;
  color: var(--ink-900);
}

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

.page-faq .qa-item__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: 28px;
  line-height: 1;
  color: var(--ember-600);
  transition: transform 200ms var(--ease);
}

.page-faq .qa-item[open] .qa-item__q::after {
  content: "\2212";
}

.page-faq .qa-item__q:hover::after {
  transform: rotate(90deg);
}

.page-faq .qa-item[open] .qa-item__q:hover::after {
  transform: none;
}

.page-faq .qa-item__a {
  padding: 0 clamp(4px, 1.4vw, 16px) 20px;
}

.page-faq .qa-item__a p {
  margin: 0;
  max-width: 68ch;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-600);
}

/* ---------- 人工介入 ---------- */
.page-faq .faq-escalate {
  padding: clamp(38px, 5vw, 76px) 0;
  background: var(--ink-900);
  color: var(--ink-inverse);
}

.page-faq .escalate__inner {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .escalate__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.25;
  color: var(--ink-inverse);
}

.page-faq .escalate__lead {
  margin: 14px 0 0;
  max-width: 54ch;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.9;
  color: var(--sand-300);
}

.page-faq .escalate__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 56ch;
}

.page-faq .escalate__list li {
  position: relative;
  padding-left: 26px;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-inverse);
}

.page-faq .escalate__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--teal-300);
  border-radius: 50%;
}

.page-faq .escalate__links {
  margin: clamp(20px, 3vw, 28px) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-faq .escalate__links a {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--teal-300);
  text-decoration: none;
  border-bottom: 2px solid var(--teal-700);
  padding-bottom: 2px;
}

.page-faq .escalate__links a:hover {
  color: var(--ink-inverse);
  border-bottom-color: var(--ember-600);
}

.page-faq .escalate__panel {
  padding: clamp(20px, 3vw, 30px);
  background: var(--paper);
  color: var(--ink-900);
  border: var(--border-heavy);
  box-shadow: 10px 10px 0 var(--teal-700);
}

.page-faq .escalate__panel-title {
  margin: 0 0 16px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
}

.page-faq .escalate__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: esc;
  display: grid;
  gap: 12px;
}

.page-faq .escalate__steps li {
  counter-increment: esc;
  position: relative;
  padding-left: 34px;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-faq .escalate__steps li::before {
  content: counter(esc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--ember-600);
}

.page-faq .escalate__steps span {
  display: block;
  font-weight: 700;
  color: var(--ink-900);
}

.page-faq .escalate__cta {
  margin-top: clamp(18px, 2.6vw, 26px);
  width: 100%;
  justify-content: center;
  text-align: center;
}

/* ---------- 支持时段 ---------- */
.page-faq .faq-hours {
  padding: clamp(38px, 5vw, 70px) 0 clamp(46px, 6vw, 80px);
}

.page-faq .hours-stats {
  margin: var(--faq-gap) 0 0;
  display: grid;
  gap: 1px;
  background: var(--ink-900);
  border: var(--border-heavy);
}

.page-faq .hours-stat {
  background: var(--sand-100);
  padding: clamp(16px, 2.6vw, 24px);
}

.page-faq .hours-stat__num {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
  color: var(--ink-900);
}

.page-faq .hours-stat__label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--ink-600);
}

.page-faq .hours-note {
  margin: clamp(22px, 3vw, 30px) 0 0;
  max-width: 62ch;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.9;
  color: var(--ink-600);
}

.page-faq .hours-links {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .hours-links a {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--teal-700);
  text-decoration: none;
  border-bottom: 2px solid var(--teal-300);
  padding-bottom: 2px;
}

.page-faq .hours-links a:hover {
  color: var(--ember-600);
  border-bottom-color: var(--ember-600);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-faq .index-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .hours-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .hours-links {
    grid-auto-flow: column;
    justify-content: start;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-hero__index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }

  .page-faq .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .page-faq .escalate__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-faq .escalate__cta {
    width: auto;
  }
}

@media (min-width: 1100px) {
  .page-faq .index-wall {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-hero__figure {
    margin-left: clamp(0px, 2vw, 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}
<<<PAGE_CSS_END>>>