.page-faq {
  background: var(--paper);
  color: var(--data-black);
  overflow-x: hidden;
}

.page-faq .crumbs {
  margin-bottom: 22px;
}

.page-faq .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.page-faq .crumbs-list a:hover,
.page-faq .crumbs-list a:focus-visible {
  color: var(--neon);
}

.page-faq .crumbs-list a[aria-current="page"] {
  color: var(--neon);
}

.page-faq .crumb-sep {
  color: var(--field-teal);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 30px) 0 clamp(64px, 9vw, 110px);
  background:
    linear-gradient(155deg, var(--ink-deep) 0%, var(--ink-deep) 52%, var(--ink-night) 52.2%, var(--ink-night) 100%);
  color: var(--paper);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  width: clamp(280px, 46vw, 520px);
  height: clamp(280px, 46vw, 520px);
  right: -12%;
  top: -18%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--neon-veil) 0%, transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -8%;
  right: -8%;
  bottom: -1px;
  height: clamp(40px, 7vw, 78px);
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
  position: relative;
  z-index: 1;
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 12px;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  color: var(--paper);
}

.page-faq .faq-lede {
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--line);
  margin: 0 0 26px;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(16px, 4vw, 38px);
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 92px;
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--neon);
}

.page-faq .faq-stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-hero-card {
  align-self: start;
  padding: clamp(16px, 2.6vw, 24px);
  border: 1px solid var(--neon-edge);
  border-radius: var(--r-lg);
  background: rgba(242, 250, 248, 0.06);
  backdrop-filter: blur(4px);
}

.page-faq .faq-card-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--field-teal);
  margin: 0 0 12px;
}

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

.page-faq .faq-hot-list a {
  display: block;
  padding: 9px 2px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px dashed rgba(191, 227, 222, 0.22);
  transition: color 0.2s var(--ease-out), padding-left 0.2s var(--ease-out);
}

.page-faq .faq-hot-list li:last-child a {
  border-bottom: 0;
}

.page-faq .faq-hot-list a:hover,
.page-faq .faq-hot-list a:focus-visible {
  color: var(--neon);
  padding-left: 6px;
}

.page-faq .faq-card-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
  padding-top: clamp(10px, 2vw, 20px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq .faq-side-inner {
  display: grid;
  gap: 16px;
}

.page-faq .faq-side-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--field-teal);
  margin: 0;
}

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

.page-faq .faq-side-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink-deep);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease-out), background 0.2s var(--ease-out);
}

.page-faq .faq-side-list a::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line);
  flex: 0 0 auto;
  transition: background 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-faq .faq-side-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-side-list a:hover,
.page-faq .faq-side-list a:focus-visible {
  border-color: var(--neon-edge);
  background: var(--neon-veil);
}

.page-faq .faq-side-list a.is-active,
.page-faq .faq-side-list a[aria-current="true"] {
  border-color: var(--neon-edge);
  background: var(--neon-veil);
  font-weight: 700;
}

.page-faq .faq-side-list a.is-active::before,
.page-faq .faq-side-list a[aria-current="true"]::before {
  background: var(--neon);
  box-shadow: 0 0 0 3px var(--neon-veil);
}

.page-faq .faq-side-help {
  padding: 16px;
  border-radius: var(--r-md);
  background: var(--ink-deep);
  color: var(--paper);
}

.page-faq .faq-side-help-k {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 15px;
  color: var(--neon);
}

.page-faq .faq-side-help-t {
  margin: 0 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--line);
}

.page-faq .faq-side-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--neon);
  padding-bottom: 2px;
}

.page-faq .faq-side-link:hover,
.page-faq .faq-side-link:focus-visible {
  color: var(--neon);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: clamp(40px, 6vw, 72px);
  min-width: 0;
}

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

.page-faq .faq-sec-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-sec-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--field-teal);
}

.page-faq .faq-sec h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
  margin: 0;
}

.page-faq .faq-sec-sub {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: #28413f;
}

.page-faq .faq-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-note a,
.page-faq .faq-sec-sub a {
  color: var(--field-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-note a:hover,
.page-faq .faq-note a:focus-visible {
  color: var(--ember);
}

/* ---------- 三步卡片 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-step {
  position: relative;
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: #ffffff;
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-data);
}

.page-faq .faq-step-k {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--field-teal);
}

.page-faq .faq-step h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink-deep);
}

.page-faq .faq-step p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #33504e;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0 0 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink-night);
}

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

.page-faq .faq-figure .media-caption {
  padding: 10px 16px;
  background: #ffffff;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--mist);
}

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

/* ---------- 字段对照表 ---------- */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #ffffff;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table thead th {
  background: var(--ink-deep);
  color: var(--paper);
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-faq .faq-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  line-height: 1.75;
  color: #33504e;
  vertical-align: top;
}

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

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

.page-faq .faq-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink-deep);
  white-space: nowrap;
}

.page-faq .faq-table td:nth-child(2) {
  color: var(--field-teal);
  white-space: nowrap;
}

/* ---------- 小屏分区 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-doc-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: #ffffff;
  font-size: 14px;
  color: var(--ink-deep);
}

.page-faq .faq-doc-v {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  color: var(--field-teal);
  flex: 0 0 auto;
}

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

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #ffffff;
  overflow: hidden;
  transition: border-color 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-deep);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -4px;
}

.page-faq .qa-mark {
  flex: 0 0 auto;
  width: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.35;
  color: var(--field-teal);
}

.page-faq .qa-mark::after {
  content: "+";
}

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

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

.page-faq .qa[open] .qa-mark {
  color: var(--neon);
}

.page-faq .qa .panel-body {
  padding: 0 18px 16px 48px;
  font-size: 14px;
  line-height: 1.8;
  color: #33504e;
}

.page-faq .qa .panel-body p {
  margin: 0;
}

/* ---------- 排查深色带 ---------- */
.page-faq .faq-band {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--r-lg);
  background: var(--ink-night);
  color: var(--paper);
}

.page-faq .faq-band::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-data);
}

.page-faq .faq-band::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--ember-veil) 0%, transparent 70%);
  pointer-events: none;
}

.page-faq .faq-band-head {
  position: relative;
  z-index: 1;
  margin-bottom: 24px;
}

.page-faq .faq-band-k {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--field-teal);
  margin-bottom: 10px;
}

.page-faq .faq-band h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 10px;
}

.page-faq .faq-band-head p {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--line);
}

.page-faq .faq-fix-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  counter-reset: fixstep;
}

.page-faq .faq-fix-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-faq .faq-fix-num {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--neon-edge);
  background: var(--neon-veil);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-faq .faq-fix-list h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-fix-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--line);
}

/* ---------- 进阶 ---------- */
.page-faq .faq-adv-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-adv-card {
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  border-left: 3px solid var(--field-teal);
  background: #ffffff;
}

.page-faq .faq-adv-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink-deep);
}

.page-faq .faq-adv-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #33504e;
}

/* ---------- 结尾 ---------- */
.page-faq .faq-tail {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: clamp(22px, 3.5vw, 34px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, #ffffff 0%, var(--paper) 100%);
}

.page-faq .faq-tail h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 26px);
  color: var(--ink-deep);
}

.page-faq .faq-tail p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: #33504e;
}

.page-faq .faq-mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--field-teal);
  word-break: break-all;
}

.page-faq .faq-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

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

@media (min-width: 820px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    align-items: start;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-tail {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 240px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-side-inner {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-side-list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 4px;
  }

  .page-faq .faq-side-list a {
    display: flex;
    width: 100%;
    border-radius: var(--r-sm);
    border-color: transparent;
    background: transparent;
    padding: 10px 12px;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hot-list a,
  .page-faq .faq-side-list a,
  .page-faq .qa {
    transition: none;
  }
}
<<<END>>>