.page-faq {
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq a:hover {
  text-decoration: underline;
}

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

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 13px;
  color: var(--muted);
}

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

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

.page-faq .crumbs__sep {
  color: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 34px 0 42px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 48%;
  height: 100%;
  background: linear-gradient(155deg, rgba(55, 224, 214, 0.18), rgba(122, 75, 209, 0.12) 55%, transparent 88%);
  clip-path: polygon(32% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  max-width: 17ch;
  font-size: clamp(28px, 5.4vw, 46px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 17px;
  color: var(--muted);
}

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

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: 3px 3px 0 rgba(6, 10, 28, 0.5);
  font-size: 14px;
}

.page-faq .faq-hero__facts .mono {
  color: var(--cyan);
  font-size: 12px;
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding: 34px 0 72px;
}

/* ---------- 侧边步骤索引 ---------- */
.page-faq .faq-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-rail__title {
  flex: 0 0 100%;
  margin: 0 0 4px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rail .rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 11px;
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail .rail__link .mono {
  font-size: 11px;
  color: var(--line-strong);
}

.page-faq .faq-rail .rail__link:hover {
  color: var(--text);
  background: var(--ink-800);
  text-decoration: none;
}

.page-faq .faq-rail .rail__link.is-active,
.page-faq .faq-rail .rail__link[aria-current="location"] {
  color: var(--cyan);
}

.page-faq .faq-rail .rail__link.is-active .mono,
.page-faq .faq-rail .rail__link[aria-current="location"] .mono {
  color: var(--cyan);
}

/* ---------- 区块外壳 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: 30px;
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-block__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-block__num {
  flex: 0 0 auto;
  padding: 2px 9px;
  border-radius: 2px;
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.65;
  letter-spacing: 0.06em;
}

.page-faq .faq-block--violet .faq-block__num {
  background: var(--violet);
  color: var(--paper);
}

.page-faq .faq-block--amber .faq-block__num {
  background: var(--amber);
  color: var(--ink-900);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.005em;
}

.page-faq .faq-block__body p {
  margin: 0 0 14px;
}

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

.page-faq .faq-block__grid {
  display: grid;
  gap: 20px;
}

/* ---------- 要点列表 ---------- */
.page-faq .faq-points {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-points li {
  position: relative;
  padding: 10px 14px 10px 32px;
  border-left: 3px solid var(--cyan);
  border-radius: 2px;
  background: var(--ink-700);
  font-size: 15px;
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

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

/* ---------- 图片 ---------- */
.page-faq .faq-figure,
.page-faq .faq-entrance__fig {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--ink-900);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

/* ---------- 字段说明条 ---------- */
.page-faq .faq-code {
  display: grid;
  gap: 6px;
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px dashed var(--line-strong);
  border-left: 3px solid var(--amber);
  border-radius: 2px;
  background: var(--ink-900);
}

.page-faq .faq-code__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-code__text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
  word-break: break-all;
  user-select: all;
}

.page-faq .faq-hint {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 对照表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background-image: repeating-linear-gradient(135deg, rgba(169, 180, 218, 0.06) 0 2px, transparent 2px 11px);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
}

.page-faq .faq-table__cap {
  padding: 12px 16px 0;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  caption-side: top;
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  font-size: 15px;
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .faq-table thead th {
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .faq-table tbody th {
  font-weight: 600;
  border-left: 3px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table tbody tr:hover,
.page-faq .faq-table tbody tr:focus-within {
  background: rgba(55, 224, 214, 0.07);
}

.page-faq .faq-table tbody tr:hover th,
.page-faq .faq-table tbody tr:focus-within th {
  border-left-color: var(--cyan);
}

.page-faq .faq-entrance__fig {
  margin-top: 18px;
}

/* ---------- 结果判断 ---------- */
.page-faq .faq-result {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-result__item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: 2px;
  background: var(--ink-700);
}

.page-faq .faq-result__item p {
  margin: 10px 0 0;
  font-size: 15px;
}

.page-faq .faq-result__item.is-pass {
  border-left-color: var(--teal);
}

.page-faq .faq-result__item.is-warn {
  border-left-color: var(--amber);
}

.page-faq .faq-result__item.is-fail {
  border-left-color: var(--wine);
}

/* ---------- 疑难情形 ---------- */
.page-faq .faq-doubts {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqd;
}

.page-faq .faq-doubts li {
  padding: 18px 0;
  border-top: 1px dashed var(--line-strong);
}

.page-faq .faq-doubts li:first-child {
  padding-top: 4px;
  border-top: 0;
}

.page-faq .faq-doubts li:last-child {
  padding-bottom: 4px;
}

.page-faq .faq-doubts h3 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.page-faq .faq-doubts h3::before {
  counter-increment: faqd;
  content: "0" counter(faqd);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

.page-faq .faq-doubts p {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-accordion {
  display: grid;
  gap: 10px;
}

.page-faq .faq-qa {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink-900);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-qa:hover {
  transform: translateY(-2px);
}

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

.page-faq .faq-qa summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--wine);
}

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

.page-faq .faq-qa__idx {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--wine);
}

.page-faq .faq-qa__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(11, 18, 51, 0.22);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-700);
}

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

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 16px;
}

.page-faq .faq-contact__col {
  display: grid;
  align-content: start;
  gap: 12px;
}

.page-faq .faq-contact__col p {
  margin: 0;
  font-size: 15px;
}

.page-faq .faq-contact__col h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.page-faq .faq-contact__list {
  display: grid;
  gap: 10px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 16px;
}

.page-faq .note__label {
  min-width: 42px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-contact__hint {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-contact__col--paper {
  padding: 20px;
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink-900);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-contact__col--paper h3 {
  color: var(--ink-900);
}

.page-faq .faq-contact__col--paper p {
  color: var(--ink-700);
}

.page-faq .faq-contact__col--paper .btn {
  justify-self: start;
  margin-top: 4px;
}

/* ---------- 平板以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-block {
    padding: 30px 32px;
  }

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

  .page-faq .faq-contact {
    grid-template-columns: 1.15fr 1fr;
    gap: 22px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 46px 0 52px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: 48px;
    padding: 50px 0 88px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    padding-left: 15px;
    border-left: 1px solid var(--line);
  }

  .page-faq .faq-rail__title {
    margin-bottom: 10px;
  }

  .page-faq .faq-rail .rail__link {
    padding: 5px 0;
  }

  .page-faq .faq-block__grid {
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 30px;
    align-items: start;
  }

  .page-faq .faq-main {
    gap: 34px;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa,
  .page-faq .faq-rail .rail__link,
  .page-faq .faq-table tbody th {
    transition: none;
  }

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