.page-faq {
  --faq-sticky: calc(var(--rail-h) + 82px);
  --faq-gap: clamp(20px, 3vw, 36px);
}

.page-faq section[id] {
  scroll-margin-top: calc(var(--rail-h) + 88px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(52px, 9vw, 96px) 0 clamp(26px, 4vw, 44px);
  background:
    radial-gradient(circle at 84% 12%, rgba(138, 92, 255, 0.20), transparent 56%),
    linear-gradient(148deg, rgba(53, 230, 255, 0.10), transparent 46%),
    linear-gradient(180deg, #081524 0%, var(--ink-900) 100%);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(23, 50, 77, 0.55) 1px, transparent 1px),
    linear-gradient(0deg, rgba(23, 50, 77, 0.35) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.6), transparent 78%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .faq-hero__lead h1 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-size: clamp(27px, 4.6vw, 52px);
  line-height: 1.16;
  letter-spacing: 0.04em;
  color: var(--text);
  max-width: 18ch;
}

.page-faq .faq-hero__lead .lede {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.8;
}

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

.page-faq .faq-hero__board {
  position: relative;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11, 27, 47, 0.96), rgba(6, 17, 31, 0.92));
  box-shadow: var(--shadow-1);
  overflow: hidden;
}

.page-faq .faq-hero__board::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 52%, var(--gold));
}

.page-faq .faq-hero__board-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-hero__rows {
  margin: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-hero__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(23, 50, 77, 0.9);
  font-size: 13px;
}

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

.page-faq .faq-hero__row dt {
  color: var(--muted);
  letter-spacing: 0.06em;
}

.page-faq .faq-hero__row dd {
  margin: 0;
  color: var(--text);
}

.page-faq .faq-hero__row dd.mono {
  color: var(--gold);
  font-size: 13px;
}

.page-faq .faq-hero__board-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(23, 50, 77, 0.9);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 索引 + 正文 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(28px, 5vw, 56px) 0 clamp(44px, 7vw, 80px);
}

.page-faq .faq-index {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: max-content;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  background: rgba(53, 230, 255, 0.07);
  border-left-color: var(--cyan);
}

.page-faq .faq-index__num {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-faq .faq-index__note {
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-body {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-faq .faq-section {
  padding: clamp(26px, 4vw, 40px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

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

.page-faq .faq-section__head .section-title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.3;
  letter-spacing: 0.04em;
}

.page-faq .faq-section__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .accordion__inner {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .accordion__inner p {
  margin: 0;
  max-width: 64ch;
}

.page-faq .faq-step-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  border: 1px solid rgba(255, 181, 71, 0.45);
  border-radius: 4px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* ---------- 手机入口三步 ---------- */
.page-faq .faq-entry {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

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

.page-faq .faq-steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 22px;
}

.page-faq .faq-steps__item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps__item::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 42px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(53, 230, 255, 0.65), rgba(53, 230, 255, 0.05));
}

.page-faq .faq-steps__item:last-child::before {
  display: none;
}

.page-faq .faq-steps__num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(53, 230, 255, 0.55);
  border-radius: 50%;
  background: rgba(53, 230, 255, 0.08);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-faq .faq-steps__text h3 {
  margin: 6px 0 6px;
  font-size: 16px;
  letter-spacing: 0.03em;
  color: var(--text);
}

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

.page-faq .faq-phone {
  margin: 0;
  display: grid;
  gap: 8px;
  justify-items: center;
}

.page-faq .faq-phone img {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  box-shadow: var(--shadow-1);
  object-fit: cover;
}

.page-faq .media-frame__caption {
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
  text-align: center;
  max-width: 30ch;
}

/* ---------- 配置与包体 ---------- */
.page-faq .faq-spec-grid {
  display: grid;
  gap: 12px;
}

.page-faq .faq-spec-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11, 27, 47, 0.92), rgba(6, 17, 31, 0.7));
}

.page-faq .faq-spec-card--focus {
  border-color: rgba(53, 230, 255, 0.42);
  box-shadow: inset 0 0 0 1px rgba(53, 230, 255, 0.10);
}

.page-faq .faq-spec-card__name {
  margin: 0;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-spec-card__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
  font-size: 13px;
  color: var(--text);
}

.page-faq .faq-spec-card__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-faq .faq-spec-key {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  flex: none;
}

.page-faq .faq-pkg {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 14px 0 0;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(138, 92, 255, 0.07);
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-pkg .mono {
  color: var(--text);
  letter-spacing: 0.04em;
}

.page-faq .faq-spec-notes {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.page-faq .faq-spec-block h3 {
  margin: 0 0 10px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--text);
}

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

.page-faq .faq-symptoms li {
  padding: 5px 11px;
  border: 1px solid rgba(255, 107, 107, 0.45);
  border-radius: 999px;
  background: rgba(255, 107, 107, 0.08);
  color: var(--coral);
  font-size: 12.5px;
}

.page-faq .faq-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-check li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-check li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--mint);
}

.page-faq .faq-spec-figure {
  margin: 22px 0 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-spec-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  object-fit: cover;
}

/* ---------- 存档与版本 ---------- */
.page-faq .faq-save {
  display: grid;
  gap: 16px;
}

.page-faq .faq-save__item {
  padding: 4px 0 4px 16px;
  border-left: 2px solid rgba(255, 181, 71, 0.7);
  background: linear-gradient(90deg, rgba(255, 181, 71, 0.08), transparent 72%);
}

.page-faq .faq-save__title {
  margin: 0 0 6px;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-faq .faq-save__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
}

/* ---------- 反馈 ---------- */
.page-faq .faq-report {
  display: grid;
  gap: 12px;
}

.page-faq .faq-report__card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(11, 27, 47, 0.65);
}

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

.page-faq .faq-report__tag {
  margin-bottom: 8px !important;
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-faq .faq-report__card--fix .faq-report__tag { color: var(--mint); }
.page-faq .faq-report__card--entry .faq-report__tag { color: var(--cyan); }
.page-faq .faq-report__card--ver .faq-report__tag { color: var(--coral); }

.page-faq .faq-report__card--fix { border-left: 2px solid rgba(61, 255, 176, 0.6); }
.page-faq .faq-report__card--entry { border-left: 2px solid rgba(53, 230, 255, 0.6); }
.page-faq .faq-report__card--ver { border-left: 2px solid rgba(255, 107, 107, 0.6); }

.page-faq .faq-contact {
  margin-top: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(53, 230, 255, 0.07), rgba(138, 92, 255, 0.07));
}

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--text);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(23, 50, 77, 0.9);
  font-size: 13.5px;
}

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

.page-faq .faq-contact__key {
  color: var(--muted);
  letter-spacing: 0.1em;
  font-size: 12px;
}

.page-faq .faq-contact__val {
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 14px 0 16px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 56ch;
}

/* ---------- 延伸索引 ---------- */
.page-faq .faq-more {
  display: grid;
  gap: 10px;
}

.page-faq .faq-more__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-800);
  color: var(--text);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.page-faq .faq-more__link:hover,
.page-faq .faq-more__link:focus-visible {
  border-color: rgba(53, 230, 255, 0.6);
  background: rgba(53, 230, 255, 0.06);
  transform: translateY(-2px);
}

.page-faq .faq-more__label {
  display: block;
  font-size: 15px;
  letter-spacing: 0.05em;
}

.page-faq .faq-more__desc {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-faq .faq-more__arrow {
  flex: none;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 15px;
}

.page-faq .faq-cta {
  margin-top: 22px;
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(105deg, rgba(53, 230, 255, 0.12), rgba(138, 92, 255, 0.14));
}

.page-faq .faq-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

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

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

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

  .page-faq .faq-save {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

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

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

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

@media (min-width: 860px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  }

  .page-faq .faq-entry {
    grid-template-columns: minmax(0, 1.15fr) minmax(220px, 0.55fr);
  }

  .page-faq .faq-phone {
    position: sticky;
    top: calc(var(--rail-h) + 84px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 226px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky);
    align-self: start;
  }

  .page-faq .faq-index__list {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    overflow-x: visible;
  }

  .page-faq .faq-index__link {
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero__row {
    font-size: 12.5px;
  }

  .page-faq .faq-cta__actions {
    width: 100%;
  }

  .page-faq .faq-cta__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}