.page-faq {
  --faq-pad: clamp(20px, 4vw, 42px);
  --faq-gap: clamp(16px, 2.4vw, 22px);
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  margin-top: 18px;
  padding: var(--faq-pad);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(120% 130% at 88% 0%, rgba(127, 216, 212, 0.22) 0%, rgba(127, 216, 212, 0) 58%),
    linear-gradient(155deg, var(--navy) 0%, var(--night) 82%);
  color: var(--on-dark-strong);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-faq .faq-hero .eyebrow {
  color: var(--mint);
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 16px;
  font-size: clamp(1.85rem, 5.4vw, 3.2rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 62ch;
  color: var(--on-dark);
  line-height: 1.8;
}

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

.page-faq .faq-ghost-dark {
  color: var(--on-dark-strong);
  border-color: rgba(244, 247, 248, 0.32);
}

.page-faq .faq-ghost-dark:hover,
.page-faq .faq-ghost-dark:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(244, 247, 248, 0.14);
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px;
  background: rgba(6, 27, 51, 0.62);
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 4.4vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--mint);
}

.page-faq .faq-stat-label {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--on-dark);
}

.page-faq .faq-hero-media {
  margin: 28px 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(127, 216, 212, 0.1);
  border: 1px solid rgba(244, 247, 248, 0.14);
}

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

/* ---------- 双层结构 ---------- */
.page-faq .faq-shell {
  margin-top: 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-faq .faq-toc {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid var(--line);
}

.page-faq .faq-toc-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 2px;
}

.page-faq .faq-toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 12px;
  border-radius: var(--radius-pill);
  background: var(--mist);
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.4;
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-toc-list a:hover {
  background: var(--navy);
  color: var(--on-dark-strong);
}

.page-faq .faq-toc-list a:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: 2px;
}

.page-faq .faq-toc-num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--clay);
}

.page-faq .faq-toc-list a:hover .faq-toc-num {
  color: var(--mint);
}

.page-faq .faq-side-note {
  margin-top: 14px;
  padding: 18px;
  border-radius: var(--radius-lg);
  background: var(--cream);
  border: 1px solid rgba(184, 107, 75, 0.24);
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-side-note p {
  margin: 0 0 10px;
}

.page-faq .faq-side-note .link-arrow {
  display: inline-block;
  margin-top: 2px;
}

.page-faq .faq-side-note-title {
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.01em;
}

/* ---------- 章节面板 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-section {
  padding: var(--faq-pad);
  border-radius: var(--radius-lg);
  background: #ffffff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-section--first {
  background: var(--cream);
  border-color: rgba(184, 107, 75, 0.22);
}

.page-faq .faq-section--search {
  background: linear-gradient(180deg, rgba(127, 216, 212, 0.16) 0%, var(--mist) 46%);
  border-color: rgba(127, 216, 212, 0.42);
}

.page-faq .faq-section--trouble {
  background: var(--mist);
}

.page-faq .faq-section--send {
  background: linear-gradient(145deg, var(--night) 0%, var(--navy) 88%);
  border-color: transparent;
  color: var(--on-dark-strong);
}

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

.page-faq .faq-section-head .section-number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 3.2vw, 2.05rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--clay);
}

.page-faq .faq-section-head h2 {
  margin: 10px 0 10px;
  font-size: clamp(1.22rem, 2.8vw, 1.62rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-section-head p {
  margin: 0;
  max-width: 66ch;
  color: var(--ink-soft);
  line-height: 1.8;
}

.page-faq .faq-section--send .faq-section-head .section-number {
  color: var(--signal);
}

.page-faq .faq-section--send .faq-section-head h2 {
  color: var(--on-dark-strong);
}

.page-faq .faq-section--send .faq-section-head p {
  color: var(--on-dark);
}

/* ---------- 分类 ---------- */
.page-faq .faq-cat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-cat {
  position: relative;
  padding: 18px 18px 18px 22px;
  border-radius: var(--radius-md);
  background: var(--mist);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-cat::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: var(--mint);
}

.page-faq .faq-cat:first-child::before {
  background: var(--signal);
}

.page-faq .faq-cat-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.page-faq .faq-cat-count {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

.page-faq .faq-cat-title {
  margin: 0 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-cat p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(184, 107, 75, 0.2);
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--clay);
}

.page-faq .faq-step-body h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-faq .faq-step-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 检索方式 ---------- */
.page-faq .faq-search-grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-search-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(11, 42, 74, 0.1);
}

.page-faq .faq-search-card h3 {
  margin: 10px 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-faq .faq-search-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-tagcloud {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tagcloud-item {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  background: rgba(244, 247, 248, 0.9);
  border: 1px solid rgba(11, 42, 74, 0.16);
  color: var(--ink-soft);
}

.page-faq .faq-tagcloud-item--on {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--mint);
  box-shadow: 0 0 0 3px rgba(127, 216, 212, 0.35);
}

.page-faq .faq-search-media {
  margin: 22px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(11, 42, 74, 0.06);
  border: 1px solid rgba(11, 42, 74, 0.1);
}

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

.page-faq .faq-search-media .media-caption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--rock);
  background: rgba(244, 247, 248, 0.9);
}

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

.page-faq .faq-qa {
  border-radius: var(--radius-md);
  background: var(--mist);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-qa summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 15px 46px 15px 18px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: background 0.18s var(--ease);
}

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

.page-faq .faq-qa summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: var(--signal);
}

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

.page-faq .faq-qa[open] summary {
  background: rgba(127, 216, 212, 0.18);
}

.page-faq .faq-qa summary:hover {
  background: rgba(127, 216, 212, 0.12);
}

.page-faq .faq-qa summary:focus-visible {
  outline: 3px solid var(--mint);
  outline-offset: -3px;
}

.page-faq .faq-qa-body {
  padding: 12px 18px 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

/* ---------- 排障 ---------- */
.page-faq .faq-trouble-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-trouble {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--line);
}

.page-faq .faq-status {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  margin-top: 7px;
}

.page-faq .faq-status--ok {
  background: var(--moss);
  box-shadow: 0 0 0 4px rgba(95, 122, 97, 0.16);
}

.page-faq .faq-status--help {
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, 0.18);
}

.page-faq .faq-trouble-body h3 {
  margin: 0 0 6px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-faq .faq-trouble-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact-grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-row {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(244, 247, 248, 0.07);
  border: 1px solid rgba(244, 247, 248, 0.16);
}

.page-faq .faq-contact-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-faq .faq-contact-value {
  display: block;
  font-size: 15px;
  line-height: 1.6;
  color: var(--on-dark-strong);
  word-break: break-word;
}

/* ---------- 行动点 ---------- */
.page-faq .faq-action {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .faq-section--send .faq-action {
  margin-top: 24px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-faq .faq-cat-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 24px;
  }

  .page-faq .faq-toc-list {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    overflow-x: visible;
    gap: 2px;
  }

  .page-faq .faq-toc-list a {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 8px;
    align-items: baseline;
    border-radius: var(--radius-sm);
    background: transparent;
    padding: 9px 10px;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-hero {
    padding: clamp(32px, 3.6vw, 52px);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero h1 {
    max-width: 22ch;
  }

  .page-faq .faq-cat-list {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc-list a,
  .page-faq .faq-qa summary {
    transition: none;
  }
}