.page-faq {
  --faq-hover: #11312a;
  --faq-line-soft: rgba(167, 180, 174, .1);
  position: relative;
}

.page-faq .breadcrumb {
  padding-top: clamp(14px, 3vw, 26px);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, var(--faq-line-soft) 0 1px, transparent 1px 76px),
    repeating-linear-gradient(0deg, var(--faq-line-soft) 0 1px, transparent 1px 76px);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 82%);
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.5vw, 42px);
  padding-top: clamp(14px, 3vw, 30px);
  align-items: end;
}

.page-faq .faq-hero-copy h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 62px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero-copy .lead {
  margin-top: 18px;
  max-width: 46ch;
  color: var(--silver);
  line-height: 1.78;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-top: 2px solid var(--lime);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.92);
}

/* 问题类型索引 */
.page-faq .faq-index-wrap {
  position: relative;
  margin-top: clamp(26px, 4vw, 44px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--silver);
  text-transform: uppercase;
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line-soft);
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  height: 100%;
  padding: 13px 15px;
  background: var(--ink);
  color: var(--paper);
  font-size: 15px;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a:focus-visible {
  background: var(--panel);
  border-left-color: var(--lime);
  transform: translateX(2px);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  letter-spacing: .06em;
}

/* 章节通用 */
.page-faq .faq-section {
  position: relative;
  padding: clamp(34px, 5vw, 62px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-section-head {
  max-width: 780px;
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .faq-section-head h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-section-note {
  margin: 14px 0 0;
  max-width: 64ch;
  color: var(--silver);
  line-height: 1.78;
}

/* 步骤卡 */
.page-faq .faq-steps-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px 16px;
  padding: 17px 16px 15px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--moss);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .step-card:hover {
  background: var(--faq-hover);
  border-left-color: var(--lime);
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
}

.page-faq .step-body h3 {
  margin: 0 0 10px;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .step-body p {
  margin: 0 0 7px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

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

.page-faq .step-body p.step-check {
  color: var(--paper);
}

.page-faq .step-key {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--teal);
  border: 1px solid rgba(102, 217, 200, .35);
  vertical-align: 1px;
}

.page-faq .faq-steps-aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-aside-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-aside-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: .78;
}

.page-faq .faq-tip {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
}

.page-faq .faq-tip h3 {
  margin: 0 0 8px;
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-faq .faq-tip p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-tip a {
  color: var(--teal);
}

/* 分区 */
.page-faq .faq-zones {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .zone-card {
  position: relative;
  padding: 18px 16px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-faq .zone-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--zone-color, var(--amber));
}

.page-faq .zone-card:nth-child(1) { --zone-color: var(--amber); }
.page-faq .zone-card:nth-child(2) { --zone-color: var(--teal); }
.page-faq .zone-card:nth-child(3) { --zone-color: var(--lime); }
.page-faq .zone-card:nth-child(4) { --zone-color: var(--orange); }

.page-faq .zone-code {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--silver);
}

.page-faq .zone-name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .03em;
  color: var(--paper);
}

.page-faq .zone-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-checkflow {
  margin-top: clamp(20px, 3vw, 32px);
  padding: 18px 16px;
  background: var(--coal);
  border: 1px solid var(--line);
}

.page-faq .faq-checkflow-title {
  margin: 0 0 14px;
  font-size: 16px;
  color: var(--paper);
}

.page-faq .faq-checkflow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-checkflow-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  position: relative;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-checkflow-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .flow-num {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--lime);
  letter-spacing: .06em;
}

.page-faq .faq-checkflow-list p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

/* 客户端替代 */
.page-faq .faq-client {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}

.page-faq .faq-client-copy h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 40px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-client-text {
  margin: 14px 0 22px;
  max-width: 52ch;
  color: var(--silver);
  line-height: 1.78;
}

.page-faq .faq-client-panel {
  padding: 20px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--teal);
}

.page-faq .faq-client-panel-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--silver);
  text-transform: uppercase;
}

.page-faq .faq-client-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-client-list li {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-client-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .faq-client-list p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

/* 联系支持 */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 2px;
  background: var(--lime);
}

.page-faq .faq-contact-tip {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-faq .faq-contact-tip a {
  color: var(--teal);
}

.page-faq .faq-contact-card {
  padding: 22px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 2px solid var(--lime);
}

.page-faq .faq-contact-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--silver);
  text-transform: uppercase;
}

.page-faq .faq-contact-label:not(:first-child) {
  margin-top: 18px;
}

.page-faq .faq-mail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.4vw, 19px);
  color: var(--lime);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid var(--line-lime);
  padding-bottom: 2px;
}

.page-faq .faq-phone {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.6vw, 22px);
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.page-faq .faq-mail:hover,
.page-faq .faq-phone:hover,
.page-faq .faq-mail:focus-visible,
.page-faq .faq-phone:focus-visible {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.page-faq .faq-contact-time {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 14px;
}

/* 短答折叠 */
.page-faq .faq-answers {
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 15px 38px 15px 0;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item summary:hover {
  color: var(--lime);
}

.page-faq .faq-item-body {
  padding: 0 38px 18px 0;
  max-width: 68ch;
}

.page-faq .faq-item-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver);
}

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

  .page-faq .faq-zones {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .step-card {
    padding: 20px 22px 18px;
    gap: 12px 22px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  }

  .page-faq .faq-index {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-faq .faq-steps-layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-faq .faq-steps-aside {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-client {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-zones {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-checkflow {
    padding: 22px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index a,
  .page-faq .step-card {
    transition: none;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    transform: none;
  }
}
<<<END>>>