.page-faq {
  --faq-edge: rgba(11, 42, 69, .14);
  --faq-glow: rgba(47, 230, 214, .22);
  background: var(--paper);
  color: var(--ink-deep);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(130% 130% at 88% 0%, var(--blue-harbor) 0%, var(--blue-cabin) 46%, var(--ink-deep) 100%);
  color: var(--white);
  padding-block: clamp(38px, 7vw, 76px) clamp(34px, 5vw, 58px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(114deg, transparent 0 42px, rgba(159, 178, 196, .07) 42px 43px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--orange) 38%, var(--cyan) 100%);
  opacity: .85;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 34px);
}

.page-faq .faq-version-mark {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-version-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-version-num {
  font-family: var(--font-mono);
  font-size: clamp(64px, 15vw, 108px);
  line-height: .84;
  letter-spacing: -.06em;
  color: var(--cyan);
}

.page-faq .faq-hero-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-hero-copy h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.2vw, 52px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-hero-copy p:not(.faq-hero-eyebrow) {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(232, 237, 242, .8);
}

.page-faq .faq-jump {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-jump a {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 10px 16px;
  border: 1px solid rgba(159, 178, 196, .34);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-jump a:hover {
  color: var(--orange);
  border-color: var(--orange);
  background: rgba(255, 107, 44, .1);
}

.page-faq .faq-jump-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--orange);
}

/* ---------- 目录与正文骨架 ---------- */
.page-faq .faq-shell {
  display: block;
  padding-block: clamp(26px, 4vw, 46px) clamp(48px, 8vw, 92px);
}

.page-faq .faq-toc {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--faq-edge);
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--steel);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.page-faq .faq-toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 14px;
  color: rgba(6, 21, 35, .72);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-toc-link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .faq-toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--steel);
}

.page-faq .faq-section {
  position: relative;
  padding-block: clamp(30px, 5vw, 54px);
  border-top: 1px solid var(--faq-edge);
}

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

.page-faq .faq-section > h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--ink-deep);
}

.page-faq .faq-marker {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--orange);
}

.page-faq .faq-lede {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(6, 21, 35, .7);
}

.page-faq .faq-section p {
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(6, 21, 35, .72);
}

.page-faq .faq-section p + p {
  margin-top: 12px;
}

/* ---------- 版本面板 ---------- */
.page-faq .faq-version-panel {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.page-faq .faq-note-card {
  margin-top: 24px;
  padding: 18px 20px;
  background: var(--white);
  border-left: 3px solid var(--orange);
}

.page-faq .faq-note-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue-harbor);
}

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

.page-faq .faq-note-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(6, 21, 35, .7);
}

.page-faq .faq-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 1px;
  background: var(--orange);
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--faq-edge);
  background: var(--blue-cabin);
  object-fit: cover;
}

.page-faq .faq-figure--wide {
  margin-top: 4px;
  margin-bottom: 26px;
}

.page-faq .faq-figure-cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: rgba(6, 21, 35, .52);
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  position: relative;
  padding-left: 54px;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: -3px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--orange);
  letter-spacing: -.02em;
}

.page-faq .faq-steps li::after {
  content: "";
  position: absolute;
  left: 12px;
  top: 28px;
  bottom: -20px;
  width: 1px;
  background: var(--faq-edge);
}

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

.page-faq .faq-steps strong {
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-deep);
  line-height: 1.5;
}

.page-faq .faq-steps p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(6, 21, 35, .66);
}

/* ---------- 路径图 ---------- */
.page-faq .faq-path-figure {
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: clamp(14px, 3vw, 24px);
  background: var(--white);
  border: 1px solid var(--faq-edge);
}

.page-faq .faq-path-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-path-node {
  fill: var(--paper);
  stroke: var(--blue-harbor);
  stroke-width: 1.4;
}

.page-faq .faq-path-node--hot {
  fill: rgba(255, 107, 44, .12);
  stroke: var(--orange);
}

.page-faq .faq-path-arrow {
  stroke: var(--orange);
  stroke-width: 1.4;
  stroke-dasharray: 5 4;
}

.page-faq .faq-path-head {
  fill: var(--orange);
}

.page-faq .faq-path-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  fill: var(--orange);
}

.page-faq .faq-path-title {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  fill: var(--ink-deep);
}

.page-faq .faq-path-text {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: rgba(6, 21, 35, .58);
}

/* ---------- 非对称分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: clamp(22px, 4vw, 38px);
}

.page-faq .faq-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-point {
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--faq-edge);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-point:hover {
  transform: translateY(-2px);
  border-color: var(--blue-harbor);
}

.page-faq .faq-point b {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.2;
  color: var(--blue-harbor);
  letter-spacing: -.02em;
}

.page-faq .faq-point span {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(6, 21, 35, .56);
}

.page-faq .faq-link-stack {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-link-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--white);
  border: 1px solid var(--faq-edge);
  color: var(--ink-deep);
  font-size: 14.5px;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-link-card:hover {
  background: var(--ink-deep);
  border-color: var(--ink-deep);
  color: var(--white);
}

.page-faq .faq-link-num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
}

.page-faq .faq-link-card:hover .faq-link-num {
  color: var(--cyan);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-qa-list {
  border-top: 1px solid var(--faq-edge);
}

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

.page-faq .faq-qa summary {
  position: relative;
  display: block;
  list-style: none;
  cursor: pointer;
  padding: 17px 44px 17px 48px;
  font-size: clamp(15px, 1.8vw, 16.5px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-deep);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-qa summary:hover {
  color: var(--orange);
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-qa[open] summary::after {
  content: "\2212";
}

.page-faq .faq-q-num {
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-faq .faq-qa[open] .faq-q-num {
  color: var(--orange);
}

.page-faq .faq-qa-body {
  padding: 0 44px 20px 48px;
}

.page-faq .faq-qa-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(6, 21, 35, .68);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  margin-top: 6px;
  padding: clamp(24px, 4.5vw, 42px);
  background: var(--ink-deep);
  color: var(--paper);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq .faq-contact-lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(232, 237, 242, .78);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.page-faq .faq-contact-key {
  margin: 0 0 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-contact-val {
  display: inline-block;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

.page-faq a.faq-contact-val {
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 230, 214, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq a.faq-contact-val:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact-note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(159, 178, 196, .22);
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(232, 237, 242, .66);
}

.page-faq .faq-contact-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 12px 24px;
  background: var(--orange);
  color: var(--white);
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: background-color var(--dur) var(--ease);
}

.page-faq .faq-contact-cta:hover {
  background: var(--orange-deep);
}

.page-faq .faq-contact-cta:focus-visible,
.page-faq .faq-toc-link:focus-visible,
.page-faq .faq-jump a:focus-visible,
.page-faq .faq-link-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-version-panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 170px minmax(0, 1fr);
    align-items: center;
    gap: clamp(28px, 5vw, 56px);
  }

  .page-faq .faq-shell {
    display: grid;
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(32px, 6vw, 72px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-faq .faq-toc-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-toc-link {
    display: flex;
    padding: 9px 0 9px 12px;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .faq-toc-link:hover {
    border-left-color: var(--orange);
    border-bottom-color: transparent;
  }

  .page-faq .faq-section {
    padding-block: clamp(38px, 4vw, 58px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-point,
  .page-faq .faq-link-card,
  .page-faq .faq-contact-cta,
  .page-faq .faq-jump a {
    transition: none;
  }

  .page-faq .faq-point:hover {
    transform: none;
  }
}
<<<END>>>