.page-faq {
  --faq-line: rgba(255, 255, 255, 0.12);
  --faq-line-soft: rgba(255, 255, 255, 0.08);
  --faq-panel: rgba(255, 255, 255, 0.06);
  --faq-ink-soft: rgba(201, 210, 222, 0.78);
  color: var(--silver);
  overflow-x: clip;
}

.page-faq .faq-sec {
  padding-block: 56px;
}

.page-faq .faq-hero {
  padding-block: 32px 48px;
  border-bottom: 1px solid var(--faq-line-soft);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero-grid {
  display: grid;
  gap: 32px;
  margin-top: 28px;
}

.page-faq .faq-hero-main h1 {
  font-size: clamp(28px, 7.2vw, 60px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 12px 0 0;
  position: relative;
}

.page-faq .faq-hero-main h1::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--orange), var(--orange-soft));
  transform: skewX(-16deg);
}

.page-faq .faq-lead {
  max-width: 68ch;
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-hero-main .btn-row {
  margin-top: 26px;
}

.page-faq .faq-hero-side {
  padding: 20px 22px 22px;
  border: 1px solid var(--glass-line);
  border-left: 3px solid var(--orange);
  background: var(--faq-panel);
  backdrop-filter: blur(10px);
}

.page-faq .faq-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-facts li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-facts li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-facts-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -0.01em;
}

.page-faq .faq-facts-label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-side-link {
  display: inline-block;
  margin-top: 20px;
  font-size: 13px;
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

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

/* ---------- 章节头部 ---------- */
.page-faq .faq-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  margin-bottom: 32px;
}

.page-faq .faq-head-num {
  display: block;
  padding: 6px 9px;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy);
  background: var(--orange);
  line-height: 1;
  transform: translateY(4px);
}

.page-faq .faq-head-body h2 {
  font-size: clamp(22px, 4.4vw, 40px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-head-lead {
  max-width: 66ch;
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-annot {
  color: var(--ice);
  display: block;
  margin-bottom: 10px;
}

/* ---------- 上手三步 ---------- */
.page-faq .faq-steps-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: step;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 20px 22px 66px;
  border-left: 1px solid var(--faq-line);
  background: var(--faq-panel);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

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

.page-faq .faq-step:hover {
  border-left-color: var(--orange);
  background: rgba(255, 255, 255, 0.09);
}

.page-faq .faq-step-num {
  position: absolute;
  left: 16px;
  top: 20px;
  font-size: 18px;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-faq .faq-step h3 {
  font-size: 19px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 10px;
  letter-spacing: 0.01em;
}

.page-faq .faq-step p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
  margin: 0;
}

.page-faq .faq-step-time {
  margin-top: 12px !important;
  font-size: 13px !important;
  color: var(--neon) !important;
}

.page-faq .faq-step-time .u-mono {
  font-weight: 700;
}

.page-faq .faq-steps-media {
  margin: 0;
  position: relative;
  border: 1px solid var(--glass-line);
  background: var(--navy-deep);
  overflow: hidden;
}

.page-faq .faq-steps-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-faq .faq-steps-media figcaption {
  padding: 14px 18px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
  border-top: 1px solid var(--faq-line-soft);
  background: linear-gradient(180deg, rgba(11, 27, 58, 0.2), rgba(8, 20, 41, 0.9));
}

/* ---------- 分类索引 + 问答 ---------- */
.page-faq .faq-board {
  display: grid;
  gap: 32px;
}

.page-faq .faq-index {
  border: 1px solid var(--glass-line);
  background: var(--faq-panel);
  backdrop-filter: blur(8px);
  padding: 16px 16px 18px;
}

.page-faq .faq-index-title {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--silver);
  margin: 0 0 12px;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 14px;
  color: var(--silver);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  border-left: 3px solid transparent;
  white-space: nowrap;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease),
    background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--paper);
  border-color: var(--orange);
  border-left-color: var(--neon);
  background: rgba(255, 106, 26, 0.10);
  transform: translateX(2px);
}

.page-faq .faq-index-count {
  font-size: 12px;
  color: var(--ice);
}

.page-faq .faq-index-foot {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-groups {
  display: grid;
  gap: 32px;
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 900;
  color: var(--paper);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-group-dot {
  width: 9px;
  height: 9px;
  background: var(--orange);
  transform: rotate(45deg);
  flex: 0 0 auto;
}

.page-faq .faq-acc {
  display: grid;
  gap: 8px;
}

.page-faq .faq-acc details {
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-line);
  background: var(--faq-panel);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-faq .faq-acc details:hover {
  border-color: var(--glass-line);
  background: rgba(255, 255, 255, 0.09);
}

.page-faq .faq-acc details[open] {
  border-left-color: var(--orange);
  background: rgba(255, 106, 26, 0.07);
}

.page-faq .faq-acc summary {
  cursor: pointer;
  list-style: none;
  padding: 15px 44px 15px 16px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  position: relative;
  transition: color var(--t) var(--ease);
}

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

.page-faq .faq-acc summary::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--t) var(--ease);
}

.page-faq .faq-acc details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-acc summary:hover,
.page-faq .faq-acc summary:focus-visible {
  color: var(--orange-soft);
}

.page-faq .faq-answer {
  padding: 0 18px 18px 16px;
  border-top: 1px dashed var(--faq-line-soft);
  margin-top: 0;
}

.page-faq .faq-answer p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
  max-width: 66ch;
}

.page-faq .faq-answer a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 213, 242, 0.45);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

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

/* ---------- 规则速查 ---------- */
.page-faq .faq-rule-grid {
  display: grid;
  gap: 16px;
}

.page-faq .faq-rule-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--glass-line);
  border-top: 3px solid var(--orange);
  background: var(--faq-panel);
}

.page-faq .faq-rule-card-alt {
  border-top-color: var(--ice);
  background: rgba(18, 59, 122, 0.28);
}

.page-faq .faq-rule-card h3 {
  font-size: 20px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
}

.page-faq .faq-rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-rule-list li {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-rule-key {
  font-size: 13px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.01em;
}

.page-faq .faq-rule-card-alt .faq-rule-key {
  color: var(--ice);
}

/* ---------- 客户端环境 ---------- */
.page-faq .faq-env-grid {
  display: grid;
  gap: 26px;
}

.page-faq .faq-spec {
  margin: 0;
  border: 1px solid var(--glass-line);
  background: var(--paper);
  padding: 6px 18px;
}

.page-faq .faq-spec-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid rgba(13, 19, 31, 0.10);
}

.page-faq .faq-spec-row:last-child {
  border-bottom: 0;
}

.page-faq .faq-spec dt {
  font-size: 14px;
  color: var(--ink);
}

.page-faq .faq-spec dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-mid);
  text-align: right;
}

.page-faq .faq-env-notes h3 {
  font-size: 18px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-faq .faq-env-notes ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-env-notes li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-env-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--neon);
  transform: rotate(45deg);
}

.page-faq .faq-env-notes strong {
  color: var(--paper);
  font-weight: 700;
}

.page-faq .faq-env-link {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed var(--faq-line-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-env-link a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 213, 242, 0.45);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-env-link a:hover,
.page-faq .faq-env-link a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 数据解读 ---------- */
.page-faq .faq-banner {
  margin: 0 0 40px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-faq .faq-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 27, 58, 0.05) 30%, rgba(11, 27, 58, 0.92) 100%);
  pointer-events: none;
}

.page-faq .faq-banner figcaption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 1;
  font-size: 13px;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--glass-line);
  background: var(--faq-panel);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--silver);
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .faq-table thead th {
  text-align: left;
  padding: 12px 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
  border-bottom: 1px solid var(--faq-line);
  white-space: nowrap;
}

.page-faq .faq-table tbody th,
.page-faq .faq-table tbody td {
  text-align: left;
  padding: 14px 18px;
  vertical-align: top;
  line-height: 1.75;
  border-bottom: 1px solid var(--faq-line-soft);
  font-weight: 400;
  color: var(--faq-ink-soft);
}

.page-faq .faq-table tbody th {
  color: var(--ice);
  font-weight: 700;
  white-space: nowrap;
}

.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 th,
.page-faq .faq-table tbody tr:hover td {
  background: rgba(111, 213, 242, 0.06);
}

.page-faq .faq-data-note {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
  max-width: 68ch;
}

.page-faq .faq-data-note a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(111, 213, 242, 0.45);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-faq .faq-data-note a:hover,
.page-faq .faq-data-note a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 人工协助 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 26px;
  padding: 28px 22px 30px;
  border: 1px solid var(--glass-line);
  border-top: 3px solid var(--orange);
  background: linear-gradient(160deg, rgba(18, 59, 122, 0.55) 0%, rgba(11, 27, 58, 0.92) 70%);
}

.page-faq .faq-help-main h2 {
  font-size: clamp(22px, 4.4vw, 34px);
  font-weight: 900;
  color: var(--paper);
  margin: 10px 0 0;
  letter-spacing: -0.01em;
}

.page-faq .faq-help-main p {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
  max-width: 60ch;
}

.page-faq .faq-help-main .btn-row {
  margin-top: 22px;
}

.page-faq .faq-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact .contact-item {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border: 1px solid var(--faq-line);
  background: var(--faq-panel);
  transition: border-color var(--t) var(--ease);
}

.page-faq .faq-contact .contact-item:hover {
  border-color: var(--orange);
}

.page-faq .faq-contact .contact-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver);
}

.page-faq .faq-contact-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
  word-break: break-all;
  position: relative;
  cursor: pointer;
}

.page-faq .faq-contact-value[data-copied]::after {
  content: "已复制";
  margin-left: 10px;
  font-size: 11px;
  color: var(--neon);
  letter-spacing: 0.08em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-sec {
    padding-block: 76px;
  }

  .page-faq .faq-hero {
    padding-block: 44px 64px;
  }

  .page-faq .faq-rule-grid,
  .page-faq .faq-env-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-steps-grid {
    grid-template-columns: 5fr 7fr;
    gap: 34px;
    align-items: start;
  }

  .page-faq .faq-help {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    padding: 36px 32px 38px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-board {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    overflow-x: visible;
    gap: 4px;
  }

  .page-faq .faq-index-list a {
    width: 100%;
    justify-content: space-between;
    border-left-width: 3px;
  }

  .page-faq .faq-acc summary {
    padding-right: 52px;
  }

  .page-faq .faq-rule-grid {
    gap: 26px;
  }

  .page-faq .faq-steps-grid {
    gap: 46px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-sec {
    padding-block: 92px;
  }

  .page-faq .faq-head {
    gap: 22px;
    margin-bottom: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}
</main>