.page-faq {
  --faq-line: 1px solid rgba(154, 163, 160, 0.36);
  --faq-line-soft: 1px solid rgba(154, 163, 160, 0.2);
  --faq-gap: clamp(26px, 4vw, 52px);
  background: var(--pearl);
  color: var(--ink);
}

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

.page-faq .faq-crumbs {
  color: rgba(247, 244, 236, 0.72);
  font-size: 12px;
  letter-spacing: 0.12em;
  margin-bottom: clamp(16px, 2.4vw, 28px);
}

.page-faq .faq-crumbs a {
  color: rgba(247, 244, 236, 0.86);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.42);
}

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

/* Hero */
.page-faq .faq-hero {
  padding-block: clamp(84px, 9vw, 128px) clamp(40px, 6vw, 72px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(19, 90, 115, 0.6) 0%, transparent 62%),
    var(--abyss);
}

.page-faq .hero-frame {
  position: relative;
  border: 1px solid rgba(154, 163, 160, 0.34);
  padding: clamp(22px, 4vw, 52px) clamp(20px, 4vw, 56px);
  background-image:
    repeating-linear-gradient(90deg, rgba(154, 163, 160, 0.11) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(154, 163, 160, 0.08) 0 1px, transparent 1px 72px);
}

.page-faq .hero-frame::before,
.page-faq .hero-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
}

.page-faq .hero-frame::before {
  top: -1px;
  left: -1px;
  border-right: none;
  border-bottom: none;
}

.page-faq .hero-frame::after {
  bottom: -1px;
  right: -1px;
  border-left: none;
  border-top: none;
  border-color: var(--coral);
}

.page-faq .hero-frame__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: space-between;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .hero-frame__coord {
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--rock);
}

.page-faq .hero-frame h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--pearl);
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  max-width: 16em;
}

.page-faq .hero-lead {
  color: rgba(247, 244, 236, 0.84);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
}

.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(154, 163, 160, 0.28);
}

.page-faq .hero-stats dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--rock);
  margin-bottom: 6px;
}

.page-faq .hero-stats dd {
  margin: 0;
  color: var(--pearl);
  font-size: 15px;
  letter-spacing: 0.04em;
}

.page-faq .hero-stats .num {
  font-family: var(--font-num);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--cyan);
  margin-right: 2px;
}

/* Body layout */
.page-faq .faq-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(32px, 5vw, 72px) clamp(48px, 7vw, 96px);
}

.page-faq .faq-index {
  position: static;
}

.page-faq .faq-index ul {
  display: flex;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
}

.page-faq .faq-index a {
  display: block;
  white-space: nowrap;
  padding: 7px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  background: rgba(231, 224, 210, 0.6);
  border-left: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-index a:hover,
.page-faq .faq-index a[aria-current="true"] {
  color: var(--tide);
  border-left-color: var(--cyan);
  background: rgba(45, 226, 230, 0.14);
}

.page-faq .faq-main {
  min-width: 0;
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(20px, 3vw, 32px);
  border-top: var(--faq-line);
  padding-top: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-section__head .h2 {
  margin: 10px 0 12px;
  color: var(--ink);
}

.page-faq .faq-section__head .lead {
  color: rgba(16, 38, 46, 0.78);
  font-size: 15px;
  line-height: 1.9;
}

/* Quick start */
.page-faq .quickstart {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

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

.page-faq .qs-step {
  position: relative;
  padding: 18px 20px 18px 22px;
  background: #fdfbf5;
  border: var(--faq-line-soft);
  border-left: 2px solid var(--cyan);
  box-shadow: var(--shadow-card);
}

.page-faq .qs-step__num {
  font-family: var(--font-num);
  font-size: 26px;
  line-height: 1;
  color: var(--tide);
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 8px;
}

.page-faq .qs-step h3 {
  margin: 0 0 8px;
  font-size: 19px;
  color: var(--ink);
}

.page-faq .qs-step p {
  margin: 0 0 8px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(16, 38, 46, 0.8);
}

.page-faq .qs-step__result {
  color: var(--moss);
  font-size: 13.5px;
  letter-spacing: 0.02em;
}

.page-faq .qs-step__link {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--tide);
  text-decoration: none;
  border-bottom: 1px solid rgba(19, 90, 115, 0.4);
}

.page-faq .qs-step__link:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.page-faq .quickstart__figure {
  margin: 0;
  align-self: start;
}

.page-faq .quickstart__figure .img-frame {
  border: 1px solid rgba(6, 42, 58, 0.18);
  background: var(--depth);
  overflow: hidden;
}

.page-faq .quickstart__figure img {
  width: 100%;
  object-fit: cover;
}

.page-faq .img-frame__caption {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: rgba(16, 38, 46, 0.62);
  line-height: 1.7;
}

/* Flow steps */
.page-faq .flow {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .flow__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 18px 18px 16px;
  background: rgba(231, 224, 210, 0.42);
  border: var(--faq-line-soft);
}

.page-faq .flow--switch .flow__item {
  background: rgba(200, 169, 106, 0.12);
  border-left: 2px solid var(--gold);
}

.page-faq .flow__num {
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1;
  color: var(--tide);
  letter-spacing: 0.04em;
}

.page-faq .flow--switch .flow__num {
  color: var(--clay);
}

.page-faq .flow__body h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--ink);
}

.page-faq .flow__body p {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(16, 38, 46, 0.8);
}

.page-faq .flow__expect {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  font-size: 13.5px;
}

.page-faq .flow__pitfall {
  font-size: 13px;
  color: rgba(16, 38, 46, 0.64);
  border-top: var(--faq-line-soft);
  padding-top: 8px;
}

.page-faq .inline-next {
  margin: 18px 0 0;
  font-size: 13.5px;
  color: rgba(16, 38, 46, 0.72);
}

.page-faq .inline-next a {
  color: var(--tide);
  text-decoration: none;
  border-bottom: 1px solid rgba(19, 90, 115, 0.4);
}

/* FAQ accordion */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: var(--faq-line);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.page-faq .faq-group__count {
  font-family: var(--font-num);
  font-size: 17px;
  color: var(--rock);
}

.page-faq .qa {
  border: var(--faq-line-soft);
  background: #fdfbf5;
  margin-bottom: 8px;
}

.page-faq .qa summary {
  cursor: pointer;
  list-style: none;
  position: relative;
  padding: 13px 40px 13px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--tide);
  line-height: 1;
}

.page-faq .qa[open] summary::after {
  content: "–";
  color: var(--coral);
}

.page-faq .qa summary:hover {
  background: rgba(45, 226, 230, 0.1);
}

.page-faq .qa[open] summary {
  background: rgba(231, 224, 210, 0.5);
}

.page-faq .qa p {
  margin: 0;
  padding: 4px 16px 14px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(16, 38, 46, 0.78);
  border-top: var(--faq-line-soft);
}

/* Self check */
.page-faq .selfcheck {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .selfcheck__panel {
  border: var(--faq-line);
  background: #fdfbf5;
  padding: clamp(16px, 2.6vw, 26px);
}

.page-faq .checklist__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

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

.page-faq .check-item:last-child {
  border-bottom: none;
}

.page-faq .check-item label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 2px;
  cursor: pointer;
}

.page-faq .check-item input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  border: 1px solid rgba(154, 163, 160, 0.9);
  background: var(--pearl);
  transition: border-color 150ms var(--ease), background 150ms var(--ease);
}

.page-faq .check-item input:checked {
  background: var(--tide);
  border-color: var(--tide);
  counter-increment: chk;
}

.page-faq .check-item input:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--pearl);
  border-bottom: 2px solid var(--pearl);
  transform: rotate(42deg);
}

.page-faq .check-item input:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-faq .check-item__text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(16, 38, 46, 0.84);
  transition: color 150ms var(--ease);
}

.page-faq .check-item input:checked + .check-item__text {
  color: var(--moss);
  text-decoration: line-through;
  text-decoration-color: rgba(111, 127, 98, 0.5);
}

.page-faq .checklist {
  counter-reset: chk;
}

.page-faq .checklist__status {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: var(--faq-line);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--tide);
}

.page-faq .checklist__status::before {
  content: counter(chk) " / 8 项已确认";
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.12em;
}

.page-faq .selfcheck__figure {
  margin: 0;
}

.page-faq .selfcheck__figure .img-frame {
  border: 1px solid rgba(6, 42, 58, 0.18);
  overflow: hidden;
}

.page-faq .selfcheck__figure img {
  width: 100%;
  object-fit: cover;
}

/* Support */
.page-faq .faq-section--support {
  padding: clamp(22px, 4vw, 40px);
  background: var(--depth);
  color: var(--pearl);
}

.page-faq .faq-section--support .faq-section__head {
  border-top-color: rgba(154, 163, 160, 0.34);
}

.page-faq .faq-section--support .faq-section__head .h2 {
  color: var(--pearl);
}

.page-faq .faq-section--support .faq-section__head .lead {
  color: rgba(247, 244, 236, 0.8);
}

.page-faq .faq-section--support .kicker {
  color: var(--gold);
}

.page-faq .support {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .support__prep {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .support__prep li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(247, 244, 236, 0.86);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(154, 163, 160, 0.24);
}

.page-faq .support__num {
  font-family: var(--font-num);
  font-size: 18px;
  color: var(--cyan);
}

.page-faq .support__card {
  background: rgba(6, 42, 58, 0.6);
  border: 1px solid rgba(154, 163, 160, 0.32);
  padding: clamp(16px, 2.6vw, 24px);
}

.page-faq .support__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--rock);
}

.page-faq .support__value {
  margin: 4px 0 14px;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--pearl);
  word-break: break-all;
}

.page-faq .support__value--num {
  font-family: var(--font-num);
  font-size: 22px;
  letter-spacing: 0.1em;
}

.page-faq .support__note {
  margin: 0 0 14px;
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.72);
  border-top: 1px solid rgba(154, 163, 160, 0.24);
  padding-top: 12px;
}

.page-faq .support__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.page-faq .support__links a {
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 230, 0.42);
}

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

/* Outro */
.page-faq .faq-outro {
  border-top: var(--faq-line);
  padding-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-outro h2 {
  margin: 0 0 12px;
  font-size: 17px;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.page-faq .faq-outro__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-outro__links a {
  display: block;
  padding-left: 16px;
  position: relative;
  font-size: 14px;
  line-height: 1.7;
  color: var(--tide);
  text-decoration: none;
}

.page-faq .faq-outro__links a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--coral);
}

.page-faq .faq-outro__links a:hover {
  color: var(--coral);
}

/* Desktop */
@media (min-width: 760px) {
  .page-faq .quickstart {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

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

  .page-faq .faq-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .support {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-faq .flow__item {
    grid-template-columns: 64px minmax(0, 1fr);
    padding: 22px 24px 22px 20px;
  }

  .page-faq .flow__num {
    font-size: 40px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding-right: 8px;
  }

  .page-faq .faq-index ul {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index a {
    background: transparent;
    padding: 9px 10px;
    font-size: 12.5px;
    color: rgba(16, 38, 46, 0.7);
    border-left: 2px solid rgba(154, 163, 160, 0.36);
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a[aria-current="true"] {
    background: rgba(45, 226, 230, 0.1);
    color: var(--tide);
    border-left-color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa summary,
  .page-faq .check-item input,
  .page-faq .check-item__text,
  .page-faq .faq-index a,
  .page-faq .qs-step__link {
    transition: none;
  }
}
<<<END>>>