.page-faq {
  --faq-grid-line: rgba(159, 182, 201, 0.06);
  position: relative;
  overflow-x: hidden;
  background-color: var(--ink);
  background-image:
    radial-gradient(circle at 10% -2%, rgba(57, 242, 208, 0.09), transparent 44%),
    radial-gradient(circle at 92% 4%, rgba(255, 178, 74, 0.07), transparent 40%),
    repeating-linear-gradient(90deg, var(--faq-grid-line) 0 1px, transparent 1px 84px);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-faq .faq-crumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(14px, 2.4vw, 22px);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-crumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-crumb li + li::before {
  content: "/";
  color: rgba(159, 182, 201, 0.5);
}

.page-faq .faq-crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-crumb .breadcrumb__current {
  color: var(--amber);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero__frame {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-m);
  padding: clamp(22px, 4vw, 46px);
  overflow: hidden;
  background:
    linear-gradient(165deg, rgba(16, 42, 66, 0.78), rgba(6, 16, 31, 0.35)),
    repeating-linear-gradient(0deg, var(--faq-grid-line) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(90deg, var(--faq-grid-line) 0 1px, transparent 1px 56px);
}

.page-faq .faq-hero__frame::before,
.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(57, 242, 208, 0.45);
  pointer-events: none;
}

.page-faq .faq-hero__frame::before {
  top: 12px;
  left: 12px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .faq-hero__frame::after {
  right: 12px;
  bottom: 12px;
  border-left: 0;
  border-top: 0;
}

.page-faq .faq-hero__code {
  position: absolute;
  top: 18px;
  right: 56px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: rgba(159, 182, 201, 0.55);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 56px);
  line-height: 1.04;
  letter-spacing: -0.012em;
  max-width: 18ch;
  text-wrap: balance;
  color: var(--white);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(20px, 3.4vw, 30px) 0 0;
}

/* ---------- 五类索引 ---------- */
.page-faq .faq-index {
  margin-top: clamp(26px, 4.5vw, 44px);
}

.page-faq .faq-index__label {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  height: 100%;
  padding: 13px 14px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: rgba(16, 42, 66, 0.42);
  text-decoration: none;
  color: var(--white);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-index__item:hover,
.page-faq .faq-index__item:focus-visible {
  border-color: var(--amber);
  background: rgba(255, 178, 74, 0.08);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-index__item:hover .faq-index__num {
  color: var(--amber);
}

.page-faq .faq-index__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.page-faq .faq-index__count {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: rgba(159, 182, 201, 0.8);
}

/* ---------- 图示 ---------- */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 28px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
  background: rgba(10, 26, 43, 0.72);
}

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

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  padding-top: clamp(40px, 6vw, 68px);
  scroll-margin-top: 96px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-group__num {
  display: inline-block;
  padding: 6px 8px;
  border: 1px solid rgba(57, 242, 208, 0.4);
  border-radius: 6px;
  background: rgba(57, 242, 208, 0.07);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-group h2 {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 4vw, 30px);
  line-height: 1.12;
  letter-spacing: 0.005em;
  color: var(--white);
}

.page-faq .faq-group__desc {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 问答条目 ---------- */
.page-faq .faq-list {
  margin-top: 4px;
}

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

.page-faq .faq-item__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 11px;
  align-items: baseline;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--white);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item__q::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-item[open] > .faq-item__q {
  color: var(--amber);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "–";
  color: var(--amber);
}

.page-faq .faq-item__idx {
  display: inline-block;
  padding: 2px 5px;
  border: 1px solid rgba(57, 242, 208, 0.35);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.5;
  letter-spacing: 0.06em;
  color: var(--cyan);
  white-space: nowrap;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] > .faq-item__q .faq-item__idx {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-faq .faq-item__a {
  padding: 0 2px 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-item__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-steps {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 32px;
  counter-increment: faqstep;
  font-size: 14px;
  line-height: 1.75;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  top: 2px;
  left: 0;
  padding: 1px 4px;
  border: 1px solid rgba(255, 178, 74, 0.4);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-faq .faq-next {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(159, 182, 201, 0.9);
}

.page-faq .faq-next a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 242, 208, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 联系支持收束 ---------- */
.page-faq .faq-group--contact {
  margin-top: clamp(40px, 6vw, 68px);
  padding: clamp(20px, 4vw, 36px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-m);
  background:
    linear-gradient(150deg, rgba(16, 42, 66, 0.88), rgba(10, 26, 43, 0.55)),
    repeating-linear-gradient(90deg, var(--faq-grid-line) 0 1px, transparent 1px 64px);
}

.page-faq .faq-group--contact .faq-group__head {
  border-bottom-color: rgba(255, 178, 74, 0.35);
}

.page-faq .faq-contact-bar {
  display: grid;
  gap: 10px;
  margin: 18px 0 8px;
  padding: 14px 16px;
  border-left: 2px solid var(--amber);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(6, 16, 31, 0.55);
}

.page-faq .faq-contact-bar__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
}

.page-faq .faq-contact-bar__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
  min-width: 62px;
}

.page-faq .faq-contact-bar__val {
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 242, 208, 0.45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-contact-bar__val:hover,
.page-faq .faq-contact-bar__val:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact-bar__hint {
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(159, 182, 201, 0.85);
}

.page-faq .faq-foot-note {
  margin: 18px 0 0;
  font-family: var(--font-serif);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(159, 182, 201, 0.85);
}

.page-faq .faq-foot-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 242, 208, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 窄屏适配 ---------- */
@media (max-width: 420px) {
  .page-faq .faq-hero__frame {
    padding: 20px 16px 24px;
  }

  .page-faq .faq-hero__code {
    display: none;
  }

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

  .page-faq .faq-item__q {
    gap: 9px;
    font-size: 14.5px;
  }

  .page-faq .faq-item__a {
    font-size: 14px;
  }

  .page-faq .faq-contact-bar {
    padding: 12px 13px;
  }

  .page-faq .faq-contact-bar__key {
    min-width: 100%;
  }
}

/* ---------- 桌面错位网格 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-index__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .faq-item__a {
    padding-left: 46px;
    max-width: 74ch;
  }

  .page-faq .faq-contact-bar {
    grid-template-columns: 1fr;
    padding: 16px 20px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__frame {
    padding: 52px 56px 48px;
  }

  .page-faq .faq-group__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 16px 22px;
    align-items: center;
  }

  .page-faq .faq-item__q {
    padding: 18px 4px;
    font-size: 16.5px;
  }

  .page-faq .faq-item__a {
    padding-left: 52px;
    padding-bottom: 24px;
    font-size: 15px;
  }
}
<<<END>>>