.page-faq {
  --faq-pad: clamp(32px, 5vw, 64px);
  --faq-line: 1px solid var(--sand);
  background: var(--paper);
  color: var(--brown);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: var(--header-offset);
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(0deg, rgba(18, 240, 200, .055) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(18, 240, 200, .055) 0 1px, transparent 1px 34px);
  color: var(--paper);
  border-bottom: 3px solid var(--brown);
  overflow: hidden;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-bottom: var(--faq-pad);
  align-items: start;
}

.page-faq .faq-hero .label {
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 68px);
  line-height: .98;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-hero__intro {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--sand);
}

.page-faq .faq-hero__hint {
  margin: 22px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--amber);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-faq .faq-hero__jump {
  margin: 18px 0 0;
  font-size: 14px;
}

.page-faq .faq-hero .link {
  color: var(--paper);
}

/* ---------- 处理窗口小部件 ---------- */
.page-faq .faq-clock {
  border: var(--bw) solid rgba(18, 240, 200, .55);
  background: rgba(8, 18, 15, .6);
  padding: 16px 16px 6px;
  box-shadow: 8px 8px 0 rgba(18, 240, 200, .16);
}

.page-faq .faq-clock__title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-faq .faq-clock__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(127, 166, 148, .28);
}

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

.page-faq .faq-clock__k {
  align-self: center;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--sand);
}

.page-faq .faq-clock__v {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  text-align: right;
}

.page-faq .faq-clock__m {
  grid-column: 1 / -1;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: var(--faq-pad) 0;
}

.page-faq .faq-index {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 46%;
  padding: 11px 12px;
  border: var(--bw) solid var(--brown);
  border-left: 5px solid var(--brick);
  background: var(--paper);
  color: var(--brown);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  transition: background var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-left-width var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-faq .faq-index__link svg {
  flex: none;
  color: var(--brick);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-index__text {
  min-width: 0;
}

.page-faq .faq-index__no {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--mid);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--ink);
  color: var(--paper);
  border-left-width: 11px;
  box-shadow: var(--shadow-soft);
}

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

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

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

/* ---------- 章节 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-sec + .faq-sec,
.page-faq .faq-sec + .faq-pair,
.page-faq .faq-pair + .faq-sec {
  margin-top: clamp(36px, 5vw, 60px);
}

.page-faq .faq-sec h2,
.page-faq .faq-group h2 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.06;
  letter-spacing: -.01em;
  font-weight: 800;
}

.page-faq .faq-sec__lead {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 20px;
}

.page-faq .faq-figure .media__frame {
  border: 3px solid var(--brown);
  box-shadow: var(--shadow-soft);
  background: var(--ink-deep);
  overflow: hidden;
}

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

.page-faq .faq-figure .media__cap {
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--mid);
}

.page-faq .faq-figure--wide .media__frame {
  max-width: 100%;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  margin: 0 0 10px;
  border: var(--bw) solid var(--brown);
  background: var(--paper);
  transition: box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  list-style: none;
}

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

.page-faq .faq-item summary::before {
  content: "";
  flex: none;
  width: 0;
  height: 0;
  border-left: 9px solid var(--brick);
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-item[open] summary::before {
  transform: rotate(90deg);
}

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-item__body {
  padding: 2px 15px 16px 36px;
  border-top: var(--faq-line);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 0 0 13px 30px;
  font-size: 14.5px;
  line-height: 1.78;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--brick);
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 20px;
  bottom: 0;
  width: 1px;
  background: var(--sand);
}

.page-faq .faq-steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps li:last-child::after {
  display: none;
}

/* ---------- 并排双组 ---------- */
.page-faq .faq-pair {
  display: grid;
  gap: clamp(22px, 3vw, 32px);
  margin-top: clamp(36px, 5vw, 60px);
}

.page-faq .faq-group {
  min-width: 0;
  border-top: 3px solid var(--brown);
  padding-top: 14px;
}

.page-faq .faq-group__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--brick);
}

.page-faq .faq-group h2 {
  font-size: clamp(20px, 2.6vw, 28px);
  margin: 6px 0 14px;
}

/* ---------- 版本块 ---------- */
.page-faq .faq-spec {
  margin: 0 0 18px;
  padding: 14px 16px;
  border: var(--bw) solid var(--brown);
  background: var(--ink-deep);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.95;
  color: var(--cyan);
  word-break: break-word;
}

.page-faq .faq-spec p {
  margin: 0;
}

.page-faq .faq-spec b {
  font-weight: 600;
  color: var(--amber);
}

/* ---------- 收束区块 ---------- */
.page-faq .faq-final {
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(24px, 4vw, 44px);
  border: 3px solid var(--brown);
  background-color: var(--ink-deep);
  background-image:
    repeating-linear-gradient(0deg, rgba(127, 166, 148, .08) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(127, 166, 148, .08) 0 1px, transparent 1px 28px);
  box-shadow: 0 -8px 0 var(--brick);
  color: var(--paper);
}

.page-faq .faq-final__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: center;
}

.page-faq .faq-final .label {
  color: var(--cyan);
}

.page-faq .faq-final h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.05;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-final__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-final__list li {
  position: relative;
  margin-bottom: 11px;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sand);
}

.page-faq .faq-final__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.page-faq .faq-final__list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-final__action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.page-faq .faq-final__action .btn {
  width: 100%;
  text-align: center;
}

.page-faq .faq-final__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--sage);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-pair {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-index__link {
    flex: 1 1 30%;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    column-gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    column-gap: clamp(28px, 3.4vw, 48px);
  }

  .page-faq .faq-index {
    flex-direction: column;
    flex-wrap: nowrap;
    position: sticky;
    top: clamp(88px, 14vh, 124px);
    gap: 9px;
  }

  .page-faq .faq-index__link {
    flex: 0 0 auto;
    padding: 13px 14px;
    font-size: 14.5px;
  }

  .page-faq .faq-final__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-final__action .btn {
    width: auto;
    min-width: 208px;
  }

  .page-faq .faq-item summary {
    padding: 15px 18px;
  }

  .page-faq .faq-item__body {
    padding: 2px 18px 18px 39px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4.5fr);
  }

  .page-faq .faq-figure {
    max-width: 88%;
  }

  .page-faq .faq-figure--wide {
    max-width: 100%;
  }
}
<<<END>>>