.page-faq {
  --faq-line: rgba(16, 36, 58, .14);
  --faq-body: rgba(28, 27, 25, .78);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(30px, 5vw, 62px) 0 clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero__grid {
  align-items: start;
  row-gap: 32px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--navy);
  margin: 14px 0 18px;
  max-width: 22ch;
}

.page-faq .faq-hero .lede {
  font-size: 17px;
  line-height: 1.85;
  color: var(--faq-body);
  max-width: 48ch;
  margin: 0;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-card {
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--gold);
  padding: 18px 20px;
}

.page-faq .faq-card--offset {
  border-left-color: var(--red);
}

.page-faq .faq-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gray);
}

.page-faq .faq-card__value {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 23px;
  line-height: 1.3;
  color: var(--navy);
  letter-spacing: .02em;
}

.page-faq .faq-card__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 步骤导航 ---------- */
.page-faq .faq-stepsnav {
  background: var(--mist);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-stepsnav__list {
  display: flex;
  gap: 26px;
  align-items: baseline;
  list-style: none;
  margin: 0 auto;
  padding: 14px clamp(24px, 4.5vw, 72px);
  max-width: var(--container);
  box-sizing: border-box;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-stepsnav__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  font-size: 15px;
  color: var(--navy);
  text-decoration: none;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.page-faq .faq-stepsnav__list a .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

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

/* ---------- 步骤区块 ---------- */
.page-faq .faq-step {
  padding: clamp(36px, 5.5vw, 68px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-step__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-step__no {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 44px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-faq .faq-step__body > p {
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-step__body a {
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
}

.page-faq .faq-step__body a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-faq .chapter-head {
  margin-bottom: 14px;
}

.page-faq .chapter-head__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.32;
  color: var(--navy);
  margin: 0;
}

/* ---------- 编号动作清单 ---------- */
.page-faq .faq-actions {
  list-style: none;
  counter-reset: faqact;
  margin: 20px 0 0;
  padding: 0;
  max-width: 66ch;
}

.page-faq .faq-actions > li {
  position: relative;
  padding: 0 0 16px 50px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .faq-actions > li:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-actions > li::before {
  counter-increment: faqact;
  content: counter(faqact, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--gold);
  border-left: 2px solid var(--gold);
  padding-left: 8px;
}

.page-faq .faq-actions__do {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-actions__note {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-faq .faq-code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--mist);
  border-left: 2px solid var(--gold);
  padding: 2px 8px;
  color: var(--navy);
}

/* ---------- 入口三分栏 ---------- */
.page-faq .faq-entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-entry__item {
  background: var(--mist);
  border-left: 3px solid var(--navy);
  padding: 16px 18px;
}

.page-faq .faq-entry__tab {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
}

.page-faq .faq-entry__item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-body);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 0;
  padding: 0;
}

.page-faq .faq-figure .media-frame {
  background: var(--white);
  border: 1px solid var(--faq-line);
  overflow: hidden;
}

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

.page-faq .faq-figure .media-caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 拖拽示意 SVG ---------- */
.page-faq .faq-svg {
  display: block;
  width: 100%;
  height: auto;
  box-sizing: border-box;
  margin: 26px 0 0;
  padding: 14px;
  background: var(--white);
  border: 1px solid var(--faq-line);
}

.page-faq .faq-svg__box rect {
  fill: var(--mist);
  stroke: rgba(16, 36, 58, .22);
  stroke-width: 1;
}

.page-faq .faq-svg__box rect.is-moved {
  fill: var(--white);
  stroke: var(--gold);
  stroke-width: 2;
}

.page-faq .faq-svg__arrow {
  fill: none;
  stroke: var(--gold);
  stroke-width: 2;
}

.page-faq .faq-svg__head {
  fill: var(--gold);
}

.page-faq .faq-svg__label {
  font-family: var(--font-mono);
  font-size: 12px;
  fill: var(--gray);
}

/* ---------- 换机三段 ---------- */
.page-faq .faq-migrate {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-faq .faq-migrate__phase {
  background: var(--white);
  border-top: 3px solid var(--gold);
  padding: 18px 18px 20px;
}

.page-faq .faq-migrate__tag {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gray);
}

.page-faq .faq-migrate__phase h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--navy);
}

.page-faq .faq-migrate__phase p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-tip {
  margin: 22px 0 0;
  padding: 14px 18px;
  max-width: 64ch;
  background: var(--white);
  border-left: 2px solid var(--gold);
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-body);
}

/* ---------- 速查表 ---------- */
.page-faq .faq-table {
  margin-top: 24px;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.page-faq .filter-btn {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--navy);
  cursor: pointer;
}

.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--paper);
}

.page-faq .filter-count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gray);
  margin-left: auto;
}

.page-faq .faq-table__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--faq-line);
}

.page-faq .data-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: var(--white);
}

.page-faq .faq-table__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .data-table th,
.page-faq .data-table td {
  text-align: left;
  vertical-align: top;
  padding: 14px 16px;
  font-size: 15px;
  line-height: 1.75;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .data-table thead th {
  background: var(--navy-deep);
  color: var(--gold-soft);
  font-weight: 500;
  letter-spacing: .04em;
  border-bottom: 0;
}

.page-faq .data-table tbody tr:nth-child(even) {
  background: var(--mist);
}

.page-faq .data-table tbody th {
  font-weight: 600;
  color: var(--navy);
  white-space: nowrap;
}

.page-faq .data-table tbody td {
  color: var(--faq-body);
}

.page-faq .data-table details {
  margin-top: 8px;
}

.page-faq .data-table summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--red);
}

.page-faq .data-table details p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 求助卡片 ---------- */
.page-faq .faq-help {
  margin-top: 24px;
  padding: 22px 20px 24px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--navy);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-help__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-help__k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--navy);
}

.page-faq .faq-help__v {
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .faq-help p {
  margin: 0 0 12px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-help .btn {
  margin-top: 6px;
}

/* ---------- 右侧刻度 ---------- */
.page-faq .faq-rail {
  display: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-entry {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-migrate {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-help__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__aside {
    padding-top: 34px;
  }

  .page-faq .faq-card--offset {
    margin-left: 32px;
  }

  .page-faq .faq-step__grid {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 36px;
  }

  .page-faq .faq-step__no {
    font-size: 64px;
  }

  .page-faq .faq-figure--tall {
    max-width: 420px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-rail {
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: fixed;
    right: 22px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 3;
    pointer-events: none;
  }

  .page-faq .faq-rail span {
    width: 2px;
    height: 22px;
    background: var(--gold);
    opacity: .5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-stepsnav__list a,
  .page-faq .filter-btn {
    transition: none;
  }
}