.page-faq {
  --faq-band: clamp(28px, 5vw, 52px);
  --faq-gap: clamp(22px, 3.4vw, 40px);
  --faq-rule: rgba(7, 26, 43, .18);
  --faq-teal: #0d7f74;
  padding-bottom: clamp(56px, 9vw, 104px);
  color: var(--sand);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(22px, 4vw, 40px) var(--faq-band);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-hero__title,
.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 700;
  line-height: .98;
  letter-spacing: -.015em;
  color: var(--sand);
  text-wrap: balance;
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lede {
  margin: 0;
  max-width: 52ch;
  font-size: var(--step-0);
  line-height: 1.78;
  color: rgba(244, 233, 212, .84);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
}

/* ---------- 快速诊断 ---------- */
.page-faq .faq-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  line-height: 1.14;
  color: var(--sand);
}

.page-faq .faq-section-lede {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: rgba(244, 233, 212, .74);
}

.page-faq .faq-steps {
  display: grid;
  gap: 1px;
  margin-top: clamp(18px, 2.6vw, 26px);
  background: var(--line-soft);
  border: 1px solid var(--line);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto auto;
  column-gap: 14px;
  row-gap: 4px;
  padding: 18px;
  background: var(--ink-900);
  color: var(--sand);
  text-decoration: none;
  transition: background .18s var(--ease);
}

.page-faq .faq-step__idx {
  grid-column: 1;
  grid-row: 1 / -1;
  align-self: start;
  padding-top: 4px;
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.25;
  color: var(--sand);
}

.page-faq .faq-step__text {
  grid-column: 2;
  grid-row: 2;
  font-size: .92rem;
  line-height: 1.65;
  color: rgba(244, 233, 212, .72);
}

.page-faq .faq-step__go {
  grid-column: 2;
  grid-row: 3;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .08em;
  color: var(--haze);
  transition: color .18s var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-visible {
  background: var(--ink-800);
}

.page-faq .faq-step:hover .faq-step__go,
.page-faq .faq-step:focus-visible .faq-step__go {
  color: var(--amber);
}

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

/* ---------- 索引 + 正文双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  margin-top: var(--faq-band);
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  min-width: 0;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-size: var(--step--1);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--haze);
}

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

.page-faq .faq-rail__list a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 9px 10px 9px 12px;
  border-left: 2px solid var(--line-soft);
  color: rgba(244, 233, 212, .86);
  font-size: var(--step--1);
  line-height: 1.5;
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(47, 227, 208, .09);
  color: var(--sand);
}

.page-faq .faq-rail__list .mono {
  color: var(--amber);
  letter-spacing: .08em;
}

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

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

/* ---------- 区块骨架 ---------- */
.page-faq .faq-block {
  padding-block: clamp(26px, 4vw, 44px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}

.page-faq .faq-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-block__head {
  display: block;
  margin-bottom: 14px;
}

.page-faq .faq-block__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
}

.page-faq .faq-block__meta .mono {
  font-size: var(--step--1);
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--sand);
  text-wrap: balance;
  overflow-wrap: break-word;
}

.page-faq .faq-block__lede {
  margin: 0;
  max-width: 64ch;
  font-size: var(--step-0);
  line-height: 1.78;
  color: rgba(244, 233, 212, .82);
}

.page-faq .faq-block__lede a,
.page-faq .qa__body a,
.page-faq .faq-foot-note a {
  color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq-flow-list {
  display: grid;
  gap: 1px;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border-left: 2px solid var(--line-strong);
}

.page-faq .faq-flow-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  background: var(--ink-900);
}

.page-faq .faq-flow-list__idx {
  padding-top: 3px;
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .faq-flow-list__title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  line-height: 1.25;
  color: var(--sand);
}

.page-faq .faq-flow-list__text {
  margin: 0;
  font-size: .93rem;
  line-height: 1.7;
  color: rgba(244, 233, 212, .76);
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa {
  margin-top: 10px;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .qa > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: var(--step-0);
  font-weight: 600;
  line-height: 1.55;
  color: var(--sand);
  overflow-wrap: break-word;
  transition: background .16s var(--ease);
}

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

.page-faq .qa > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.15em;
  line-height: 1.2;
  color: var(--cyan);
}

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

.page-faq .qa[open] > summary {
  background: rgba(47, 227, 208, .07);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .qa__body {
  padding: 15px 18px 18px;
  font-size: var(--step-0);
  line-height: 1.8;
  color: rgba(244, 233, 212, .84);
}

.page-faq .qa__body p {
  margin: 0 0 12px;
}

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

/* ---------- 奶油报表区块 ---------- */
.page-faq .faq-block--sand {
  display: grid;
  grid-template-areas:
    "intro"
    "media"
    "list";
  gap: clamp(16px, 2.4vw, 24px);
  margin-block: clamp(20px, 3vw, 32px);
  padding: clamp(20px, 3.4vw, 34px);
  background: var(--sand);
  color: var(--ink-900);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-block--sand .faq-block__meta .mono {
  color: var(--faq-teal);
}

.page-faq .faq-block--sand h2 {
  color: var(--ink-900);
}

.page-faq .faq-block--sand .faq-block__lede {
  color: rgba(7, 26, 43, .78);
}

.page-faq .faq-rules__intro {
  grid-area: intro;
  min-width: 0;
}

.page-faq .faq-rules__list {
  grid-area: list;
  min-width: 0;
}

.page-faq .faq-rules__media {
  grid-area: media;
  align-self: start;
  margin: 0;
  border: 1px solid rgba(7, 26, 43, .22);
  background: rgba(7, 26, 43, .06);
}

.page-faq .faq-block--sand .qa {
  background: rgba(255, 255, 255, .55);
  border-color: rgba(7, 26, 43, .22);
}

.page-faq .faq-block--sand .qa > summary {
  color: var(--ink-900);
}

.page-faq .faq-block--sand .qa > summary::after {
  color: var(--faq-teal);
}

.page-faq .faq-block--sand .qa[open] > summary {
  background: rgba(7, 26, 43, .07);
  border-bottom-color: rgba(7, 26, 43, .18);
}

.page-faq .faq-block--sand .qa[open] > summary::after {
  color: #a5661a;
}

.page-faq .faq-block--sand .qa__body {
  color: rgba(7, 26, 43, .84);
}

.page-faq .faq-block--sand .qa__body a {
  color: var(--faq-teal);
}

/* ---------- 联系准备 ---------- */
.page-faq .faq-checklist {
  display: grid;
  gap: 1px;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 13px 16px;
  background: var(--ink-900);
  font-size: .95rem;
  line-height: 1.7;
  color: rgba(244, 233, 212, .82);
}

.page-faq .faq-checklist strong {
  color: var(--sand);
  font-weight: 600;
}

.page-faq .faq-mark {
  align-self: center;
  width: 8px;
  height: 8px;
  background: var(--amber);
}

.page-faq .faq-contact {
  display: grid;
  gap: 16px;
  margin-top: clamp(18px, 2.6vw, 26px);
  padding: clamp(18px, 2.8vw, 26px);
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
}

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

.page-faq .faq-contact__row {
  display: grid;
  gap: 3px;
}

.page-faq .faq-contact__k {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-faq .faq-contact__v {
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--sand);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: .88rem;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-foot-note {
  margin: 16px 0 0;
  font-size: .86rem;
  line-height: 1.75;
  color: var(--haze);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-block--sand {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    grid-template-areas:
      "intro media"
      "list  media";
    column-gap: clamp(22px, 3.2vw, 42px);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(196px, 236px) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 28px;
    border-top: 0;
    padding-top: 0;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-block {
    scroll-margin-top: 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-step__go,
  .page-faq .faq-rail__list a,
  .page-faq .qa > summary {
    transition: none;
  }
}
<<<END>>>