.page-faq {
  --faq-line: 2px solid rgba(201, 184, 163, .28);
  background: var(--ink);
  color: var(--cream);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: 18px;
  padding-bottom: 4px;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .breadcrumb__list li {
  display: inline-flex;
  align-items: center;
}

.page-faq .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--paper);
}

.page-faq .breadcrumb__list a {
  color: var(--cyan);
  text-decoration: none;
}

.page-faq .breadcrumb__list a:hover {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 22px 0 0;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(139, 92, 246, .30), transparent 62%),
    radial-gradient(90% 70% at 0% 110%, rgba(56, 225, 214, .16), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-bottom: 3px solid var(--brown);
}

.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-bottom: 30px;
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(31px, 6.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 800;
  color: var(--cream);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(244, 239, 228, .82);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  position: relative;
  border: 3px solid var(--brown);
  background: var(--ink-deep);
  box-shadow: var(--hard);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  overflow: hidden;
}

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

.page-faq .faq-jump {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding-bottom: 26px;
}

.page-faq .faq-jump__item {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 14px 15px;
  border: 2px solid rgba(201, 184, 163, .30);
  background: rgba(7, 17, 28, .62);
  color: var(--cream);
  text-decoration: none;
  transition: border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.page-faq .faq-jump__num {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-faq .faq-jump__label {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  border-color: var(--cyan);
  background: rgba(56, 225, 214, .10);
  box-shadow: 4px 4px 0 rgba(7, 17, 28, .9);
  outline: none;
}

/* ---------- 章节通用 ---------- */
.page-faq .section {
  padding: clamp(38px, 6.4vw, 70px) 0;
}

.page-faq .section-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2.4vw, 26px);
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-faq .section-head > div {
  min-width: 0;
}

.page-faq .section-num {
  flex: 0 0 auto;
  font-size: clamp(36px, 7vw, 62px);
  line-height: .86;
  letter-spacing: -.03em;
  font-weight: 800;
  color: var(--amber);
}

.page-faq .section-head h2 {
  margin: 8px 0 10px;
  font-size: clamp(23px, 4vw, 36px);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 800;
  color: var(--cream);
}

.page-faq .faq-intro {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(244, 239, 228, .78);
}

/* ---------- 01 分场景问答 ---------- */
.page-faq .faq-board {
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 100%);
  border-bottom: 3px solid var(--brown);
}

.page-faq .faq-tabs {
  margin-top: 4px;
}

.page-faq .faq-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-faq .faq-tabs .tabs__btn {
  appearance: none;
  cursor: pointer;
  padding: 11px 16px;
  border: 2px solid rgba(201, 184, 163, .30);
  background: transparent;
  color: var(--mist);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  transition: border-color .16s ease, color .16s ease, background .16s ease;
}

.page-faq .faq-tabs .tabs__btn:hover {
  border-color: var(--cyan);
  color: var(--cream);
}

.page-faq .faq-tabs .tabs__btn[aria-selected="true"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--brown);
  box-shadow: 4px 4px 0 rgba(7, 17, 28, .92);
}

.page-faq .faq-tabs .tabs__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-tabs .tabs__panel {
  border-top: 2px solid rgba(201, 184, 163, .26);
}

.page-faq .qa {
  border-bottom: 1px solid rgba(201, 184, 163, .20);
}

.page-faq .qa summary {
  position: relative;
  display: block;
  padding: 16px 42px 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--cream);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--amber);
}

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

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

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

.page-faq .qa p {
  margin: 0 0 18px;
  max-width: 66ch;
  padding-left: 14px;
  border-left: 3px solid rgba(56, 225, 214, .5);
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 239, 228, .80);
}

/* ---------- 02 首次进站 ---------- */
.page-faq .faq-first {
  background: var(--cream);
  color: var(--brown);
  border-bottom: 3px solid var(--brown);
}

.page-faq .faq-first .eyebrow {
  color: var(--redorange);
}

.page-faq .faq-first .section-num {
  color: rgba(232, 93, 63, .62);
}

.page-faq .faq-first .section-head h2 {
  color: var(--brown);
}

.page-faq .faq-first .faq-intro {
  color: rgba(27, 21, 17, .78);
}

.page-faq .faq-first__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-faq .faq-first__steps {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-faq .step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 2px solid rgba(27, 21, 17, .16);
}

.page-faq .step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--brown);
  background: var(--amber);
  color: var(--brown);
  font-size: 14px;
  font-weight: 700;
  box-shadow: 3px 3px 0 var(--brown);
}

.page-faq .step__body h3 {
  margin: 4px 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--brown);
}

.page-faq .step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(27, 21, 17, .80);
}

.page-faq .faq-first__figure {
  margin: 0;
  border: 3px solid var(--brown);
  background: var(--paper);
  box-shadow: 7px 7px 0 rgba(27, 21, 17, .92);
}

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

.page-faq .faq-first__figure figcaption {
  padding: 10px 14px;
  border-top: 2px solid var(--brown);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: rgba(27, 21, 17, .72);
}

.page-faq .faq-first__notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .note-card {
  padding: 16px 16px 18px;
  border: 2px solid var(--brown);
  background: rgba(201, 184, 163, .26);
  box-shadow: 5px 5px 0 rgba(27, 21, 17, .90);
}

.page-faq .note-card__title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--redorange);
}

.page-faq .note-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(27, 21, 17, .82);
}

/* ---------- 03 记录明细 ---------- */
.page-faq .faq-records {
  background: var(--ink);
  border-bottom: 3px solid var(--brown);
}

.page-faq .filter-demo {
  border: 3px solid var(--cyan);
  background: rgba(7, 17, 28, .86);
  box-shadow: var(--hard-cyan);
  padding: 18px;
}

.page-faq .filter-demo__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 2px solid rgba(56, 225, 214, .28);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .filter-demo__dot {
  width: 9px;
  height: 9px;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(242, 169, 59, .22);
}

.page-faq .filter-demo__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 16px 0;
}

.page-faq .filter-chip {
  padding: 14px 14px 16px;
  border: 2px solid rgba(201, 184, 163, .28);
  background: rgba(11, 27, 43, .78);
}

.page-faq .filter-chip__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .filter-chip p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(244, 239, 228, .80);
}

.page-faq .filter-demo__foot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  padding-top: 14px;
  border-top: 2px solid rgba(56, 225, 214, .28);
}

.page-faq .filter-demo__foot p {
  margin: 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(244, 239, 228, .76);
}

/* ---------- 04 订阅与联系 ---------- */
.page-faq .faq-support {
  background:
    radial-gradient(100% 70% at 100% 0%, rgba(139, 92, 246, .22), transparent 62%),
    var(--ink-deep);
}

.page-faq .faq-support__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .sub-path {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 3px solid rgba(56, 225, 214, .42);
  padding-left: 18px;
}

.page-faq .sub-path__item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 14px 0;
}

.page-faq .sub-path__item + .sub-path__item {
  border-top: 1px solid rgba(201, 184, 163, .18);
}

.page-faq .sub-path__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-faq .sub-path__item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--cream);
}

.page-faq .sub-path__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(244, 239, 228, .76);
}

.page-faq .support-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.page-faq .support-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 10px 16px;
  border: 2px solid rgba(242, 169, 59, .46);
  background: rgba(242, 169, 59, .08);
}

.page-faq .support-stat__num {
  font-size: clamp(19px, 3.6vw, 26px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--amber);
}

.page-faq .support-stat__label {
  font-size: 12.5px;
  line-height: 1.5;
  color: rgba(244, 239, 228, .74);
}

.page-faq .support-side__note {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: rgba(244, 239, 228, .76);
}

.page-faq .faq-contact {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 20px 18px 22px;
  border: 3px solid var(--amber);
  background: linear-gradient(120deg, rgba(242, 169, 59, .16), rgba(139, 92, 246, .16));
  box-shadow: var(--hard-amber);
}

.page-faq .faq-contact__text h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 800;
  color: var(--cream);
}

.page-faq .faq-contact__text p {
  margin: 0;
  max-width: 54ch;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(244, 239, 228, .80);
}

.page-faq .faq-contact__rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(201, 184, 163, .24);
}

.page-faq .faq-contact__label {
  min-width: 40px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-contact__value {
  font-size: 15px;
  color: var(--cream);
  word-break: break-word;
}

.page-faq .faq-contact .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-jump {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-first__notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .filter-demo {
    padding: 22px 24px 24px;
  }

  .page-faq .filter-demo__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .filter-demo__foot {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .qa summary {
    padding: 18px 46px 18px 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.08fr .92fr;
    align-items: center;
    gap: 46px;
    padding-bottom: 44px;
  }

  .page-faq .faq-first__grid {
    grid-template-columns: 1.05fr .95fr;
    align-items: start;
    gap: 34px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }

  .page-faq .faq-contact {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 24px;
    padding: 26px 28px;
  }

  .page-faq .faq-contact__rows {
    min-width: 260px;
  }

  .page-faq .faq-contact .btn {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-contact {
    grid-template-columns: 1.1fr .9fr auto;
    align-items: center;
  }

  .page-faq .faq-contact .btn {
    grid-column: auto;
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-jump__item,
  .page-faq .faq-tabs .tabs__btn {
    transition: none;
  }
}