.page-faq {
  --faq-rail: 250px;
  --faq-gap: clamp(20px, 3vw, 40px);
  background: var(--ink);
  color: var(--ivory);
  padding-bottom: 0;
}

.page-faq [hidden] {
  display: none !important;
}

.page-faq .breadcrumb {
  padding: clamp(14px, 2vw, 22px) 0 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(12px, 2vw, 20px);
  padding: clamp(26px, 5vw, 58px) 0 clamp(26px, 4vw, 48px);
  background:
    radial-gradient(120% 95% at 88% -12%, rgba(56, 224, 208, 0.18), transparent 62%),
    linear-gradient(158deg, var(--ink-2) 0%, var(--ink) 64%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -8%;
  width: 46%;
  height: 170%;
  background: linear-gradient(104deg, rgba(216, 168, 78, 0.12), transparent 68%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-hero__text {
  min-width: 0;
}

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 7vw, 4.4rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--ivory);
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.8;
  color: rgba(244, 240, 230, 0.82);
}

/* 时间条 */
.page-faq .faq-clock {
  align-self: start;
  padding: 18px 18px 16px;
  background: linear-gradient(180deg, rgba(17, 28, 78, 0.92), rgba(11, 20, 55, 0.92));
  border: 1px solid var(--line-cyanish);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq .faq-clock__scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--cyan-mist);
}

.page-faq .faq-clock__track {
  display: flex;
  gap: 5px;
  margin-top: 10px;
}

.page-faq .faq-clock__seg {
  padding: 14px 4px;
  text-align: center;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.page-faq .faq-clock__seg--a {
  flex: 4;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-mist));
}

.page-faq .faq-clock__seg--b {
  flex: 6;
  background: linear-gradient(90deg, rgba(216, 168, 78, 0.92), var(--gold-bright));
}

.page-faq .faq-clock__seg--c {
  flex: 5;
  background: linear-gradient(90deg, var(--crimson), #9E353F);
  color: var(--ivory);
}

.page-faq .faq-clock__note {
  margin: 12px 0 0;
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  color: var(--slate);
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(26px, 4vw, 56px) 0 clamp(32px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-index {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-faq .faq-index__title {
  margin: 0;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--slate);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ivory);
  background: rgba(56, 224, 208, 0.07);
}

.page-faq .faq-index__num {
  font-size: 0.74rem;
  color: var(--cyan);
}

.page-faq .faq-index__block {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.page-faq .faq-filter {
  font-family: var(--font-body);
  font-size: 0.78rem;
  padding: 7px 13px;
  background: transparent;
  color: var(--slate);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color 0.16s var(--ease), background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.page-faq .faq-filter:hover,
.page-faq .faq-filter:focus-visible {
  color: var(--ivory);
  border-color: var(--line-gold);
}

.page-faq .faq-filter[aria-pressed="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-index__count {
  margin: 0;
  font-size: 0.72rem;
  color: var(--slate);
}

.page-faq .faq-index__count span {
  color: var(--cyan);
}

.page-faq .faq-main {
  display: flex;
  flex-direction: column;
  gap: clamp(26px, 4vw, 44px);
  min-width: 0;
}

.page-faq .faq-sec {
  scroll-margin-top: 110px;
  padding-top: clamp(16px, 2vw, 22px);
  border-top: 1px solid var(--line);
  min-width: 0;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-sec__num {
  font-size: 0.82rem;
  color: var(--gold);
  flex: none;
}

.page-faq .faq-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.2vw, 1.95rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ivory);
}

.page-faq .faq-sec__hint {
  margin: 10px 0 6px;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--slate);
}

/* 折叠问答 */
.page-faq .faq-item {
  margin-top: 10px;
  background: rgba(17, 28, 78, 0.55);
  border-left: 2px solid rgba(56, 224, 208, 0.28);
  transition: border-color 0.16s var(--ease), background 0.16s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--gold);
  background: rgba(17, 28, 78, 0.82);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 14px 46px 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(0.94rem, 2vw, 1.04rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ivory);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--gold);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item[open] summary {
  color: var(--gold-bright);
}

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

.page-faq .faq-answer {
  padding: 0 16px 16px;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(244, 240, 230, 0.8);
}

.page-faq .faq-answer p {
  margin: 0 0 0.65em;
}

.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-answer a {
  color: var(--cyan-mist);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

/* 图与平板分栏 */
.page-faq .faq-figure {
  margin: 16px 0 6px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  min-width: 0;
}

.page-faq .faq-figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-figure .media-frame__caption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--slate);
  border-top: 1px solid var(--line);
}

.page-faq .faq-figure .media-frame__tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-tablet {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-faq .faq-tablet__qa {
  min-width: 0;
}

.page-faq .faq-tablet__qa .faq-item:first-child {
  margin-top: 10px;
}

/* ---------- 支持区 ---------- */
.page-faq .faq-support {
  margin-top: clamp(10px, 2vw, 24px);
  padding: clamp(28px, 4.5vw, 52px) 0;
  background:
    radial-gradient(90% 130% at 10% 0%, rgba(216, 168, 78, 0.14), transparent 60%),
    linear-gradient(132deg, var(--crimson) 0%, #43101C 58%, var(--ink-2) 100%);
  border-top: 1px solid var(--line-gold);
  border-bottom: 1px solid var(--line-gold);
}

.page-faq .faq-support__grid {
  display: grid;
  gap: clamp(18px, 3vw, 34px);
  min-width: 0;
}

.page-faq .faq-support__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.6vw, 2.2rem);
  line-height: 1.2;
  color: var(--ivory);
}

.page-faq .faq-support__text {
  margin: 0 0 16px;
  max-width: 56ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(244, 240, 230, 0.85);
}

.page-faq .faq-support__mail,
.page-faq .faq-support__phone {
  margin: 0 0 6px;
  font-size: clamp(0.95rem, 2.4vw, 1.2rem);
  letter-spacing: 0.02em;
  color: var(--gold-bright);
  word-break: break-all;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-support__actions .btn {
  max-width: 100%;
}

.page-faq .faq-support__link {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--cyan-mist);
  text-decoration: none;
  border-bottom: 1px solid rgba(156, 243, 234, 0.4);
  padding-bottom: 2px;
}

.page-faq .faq-support__link:hover,
.page-faq .faq-support__link:focus-visible {
  color: var(--ivory);
  border-bottom-color: var(--gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .faq-tablet {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .faq-figure--side {
    margin-top: 10px;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: center;
  }

  .page-faq .faq-support__actions {
    align-items: flex-start;
  }
}

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

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-sec h2 {
    letter-spacing: 0.015em;
  }
}