.page-faq {
  --faq-gap: clamp(20px, 3.2vw, 36px);
  --faq-cut: 18px;
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(22px, 3.5vw, 48px) 0 clamp(36px, 5vw, 72px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(18px, 3vw, 34px);
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(38px, 8vw, 82px);
  line-height: 1.02;
  letter-spacing: 0.01em;
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
  padding: 4px 18px 4px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  min-height: 62px;
}

.page-faq .faq-search:focus-within {
  border-color: var(--mint-deep);
  border-left-color: var(--mint);
}

.page-faq .faq-search__icon {
  flex: 0 0 auto;
  color: var(--mint);
}

.page-faq .faq-search__input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 14px 0;
  background: transparent;
  border: 0;
  outline: none;
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.4;
}

.page-faq .faq-search__input::placeholder {
  color: var(--muted);
  opacity: 1;
}

.page-faq .faq-tags__label {
  margin: 22px 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

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

.page-faq .tag-link {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

/* ---------- 右侧分类 ---------- */
.page-faq .faq-aside {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: clamp(16px, 2.6vw, 24px);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-aside__media {
  margin: 0 0 18px;
  border: 1px solid var(--line);
}

.page-faq .faq-aside__head {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-faq .faq-aside__head .mono {
  color: var(--mint);
  font-size: 15px;
}

.page-faq .cat-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .cat-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .cat-item:last-child {
  border-bottom: 0;
}

.page-faq .cat-item__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-faq .cat-item__body {
  display: block;
  min-width: 0;
}

.page-faq .cat-item__name {
  display: block;
  font-size: 15px;
  line-height: 1.5;
}

.page-faq .cat-item__ex {
  display: block;
  margin-top: 3px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .cat-item__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .faq-aside__foot {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-aside__foot a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--mint-deep);
}

/* ---------- 订阅与筛选 ---------- */
.page-faq .howto-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(24px, 3.6vw, 44px);
}

.page-faq .howto-card {
  padding: clamp(20px, 3vw, 34px);
  border-left: 1px solid var(--line);
}

.page-faq .howto-card__tag {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.page-faq .howto-card__title {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
}

.page-faq .steps {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 14px;
}

.page-faq .steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .steps li::before {
  counter-increment: faqstep;
  content: "0" counter(faqstep);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mint);
  padding-top: 4px;
}

.page-faq .howto-card__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 工单提交 ---------- */
.page-faq .ticket-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(24px, 3.6vw, 44px);
}

.page-faq .ticket-panel {
  padding: clamp(20px, 3vw, 34px);
}

.page-faq .ticket-panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .ticket-panel__label + .info-list {
  margin-top: 0;
}

.page-faq .chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .chips li {
  padding: 7px 14px;
  border: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .chips li.is-on {
  border-color: var(--mint);
  background: rgba(53, 240, 192, 0.08);
  color: var(--mint);
}

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

.page-faq .info-list li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.7;
}

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

.page-faq .info-list .mono {
  color: var(--mint);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding-top: 4px;
}

.page-faq .ticket-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .ticket-panel__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .ticket-panel__btn {
  margin-top: 22px;
}

.page-faq .ticket-figure {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 数据纠错 ---------- */
.page-faq .fix-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 30px);
  padding: clamp(20px, 3vw, 34px);
  background: var(--panel-lift);
  border-left: 3px solid var(--amber);
}

.page-faq .fix-bar__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.2;
}

.page-faq .fix-bar__step {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .fix-bar__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 常见问答 ---------- */
.page-faq .qa-list {
  margin-top: clamp(18px, 2.6vw, 30px);
  border-top: 1px solid var(--line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.6;
  color: var(--text);
}

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

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

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

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

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-right: 12px;
}

.page-faq .qa p {
  margin: 0 0 22px;
  padding-left: 0;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 联系与时间 ---------- */
.page-faq .contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 28px);
  margin-top: clamp(22px, 3.2vw, 36px);
  padding: clamp(20px, 3vw, 34px);
}

.page-faq .contact-cell {
  min-width: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .contact-cell__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .contact-cell__value {
  margin: 0;
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-faq .contact-cell__note {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-cta {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 3.6vw, 44px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-cta__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .howto-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .howto-card--offset {
    margin-top: clamp(18px, 3vw, 40px);
  }

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

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

  .page-faq .fix-bar__head {
    grid-column: 1 / -1;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .faq-hero__lead {
    padding-right: clamp(0px, 2vw, 28px);
  }

  .page-faq .faq-aside {
    margin-top: clamp(6px, 1vw, 18px);
  }

  .page-faq .ticket-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-faq .ticket-figure {
    margin-top: clamp(0px, 2vw, 30px);
  }

  .page-faq .fix-bar {
    grid-template-columns: minmax(0, 1.1fr) repeat(3, minmax(0, 0.9fr));
    align-items: start;
  }

  .page-faq .fix-bar__head {
    grid-column: auto;
  }

  .page-faq .qa p {
    padding-left: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tag-link {
    transition: none;
  }
}