.page-faq {
  --faq-cut: 18px;
  position: relative;
  background: var(--ink);
  color: var(--bone);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(22px, 4.5vw, 48px) 0 clamp(34px, 6vw, 76px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -16%;
  right: -20%;
  width: 82%;
  height: 142%;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(205deg, rgba(255, 90, 31, 0.36) 0%, rgba(181, 46, 18, 0.14) 44%, transparent 74%);
  clip-path: polygon(36% 0, 100% 0, 100% 100%, 0 100%);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(20px, 3.5vw, 32px);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: clamp(26px, 5vw, 52px);
  align-items: center;
}

.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.8vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.page-faq .faq-hero-lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 2.1vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--mist);
}

.page-faq .faq-hero-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-hero-facts li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, rgba(57, 230, 255, 0.16), rgba(30, 38, 51, 0.9) 48%, rgba(255, 90, 31, 0.18));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

/* ---------- 分类直达 ---------- */
.page-faq .faq-index {
  padding: clamp(32px, 5.5vw, 62px) 0 clamp(18px, 3vw, 30px);
}

.page-faq .faq-index-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-faq .faq-index-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 30px);
  letter-spacing: 0.01em;
}

.page-faq .faq-index-note {
  margin: 0;
  max-width: 44ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-index-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .faq-index-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 16px 20px;
  text-decoration: none;
  color: inherit;
  background: rgba(30, 38, 51, 0.55);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.page-faq .faq-index-card:hover,
.page-faq .faq-index-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(255, 90, 31, 0.6);
  background: rgba(255, 90, 31, 0.12);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-index-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 2.4vw, 19px);
  letter-spacing: -0.01em;
}

.page-faq .faq-index-meta {
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 问题主体 ---------- */
.page-faq .faq-main {
  padding: clamp(22px, 4vw, 38px) 0 clamp(40px, 7vw, 84px);
}

.page-faq .faq-shell {
  position: relative;
}

.page-faq .faq-toolbar {
  position: sticky;
  top: 96px;
  z-index: 5;
  margin-bottom: clamp(20px, 3.5vw, 32px);
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(11, 13, 18, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-faq .faq-toolbar-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-faq .faq-toolbar-label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .filter-status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

.page-faq .faq-block {
  scroll-margin-top: 200px;
  padding: clamp(26px, 4vw, 44px) 0;
  border-top: 1px solid var(--line);
}

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

.page-faq .faq-block-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 6px 16px;
  margin-bottom: clamp(16px, 2.6vw, 24px);
}

.page-faq .faq-block-index {
  font-family: var(--font-mono);
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(242, 193, 78, 0.78);
}

.page-faq .faq-block-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 30px);
  letter-spacing: 0.01em;
}

.page-faq .faq-block-desc {
  grid-column: 2;
  margin: 0;
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* 配置四项 */
.page-faq .faq-spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 clamp(16px, 3vw, 24px);
}

.page-faq .faq-spec {
  padding: 14px 14px 16px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: linear-gradient(160deg, rgba(57, 230, 255, 0.1), rgba(30, 38, 51, 0.5));
}

.page-faq .faq-spec:nth-child(2) {
  border-top-color: var(--gold);
}

.page-faq .faq-spec:nth-child(3) {
  border-top-color: var(--flame);
}

.page-faq .faq-spec:nth-child(4) {
  border-top-color: var(--violet);
}

.page-faq .faq-spec-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-spec-value {
  display: block;
  margin-top: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(14.5px, 2.1vw, 18px);
  line-height: 1.35;
  color: var(--bone);
}

.page-faq .faq-config-figure {
  margin: 0 0 clamp(16px, 3vw, 24px);
  border: 1px solid var(--line);
  background: var(--ink-deep);
}

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

.page-faq .faq-config-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* 手风琴 */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  background: rgba(30, 38, 51, 0.42);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 90, 31, 0.55);
  background: rgba(30, 38, 51, 0.8);
  box-shadow: 0 22px 48px -32px rgba(255, 90, 31, 0.7);
}

.page-faq .faq-item.is-filtered-out {
  display: none;
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: clamp(14.5px, 2.1vw, 16px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--bone);
}

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

.page-faq .faq-q::marker {
  content: "";
}

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

.page-faq .faq-q-icon {
  position: relative;
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1px solid rgba(57, 230, 255, 0.55);
  transform: rotate(45deg);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-q-icon::before,
.page-faq .faq-q-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--cyan);
  transition: opacity 0.2s ease, background 0.2s ease;
}

.page-faq .faq-q-icon::before {
  width: 10px;
  height: 1px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q-icon::after {
  width: 1px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[open] .faq-q-icon {
  background: var(--flame);
  border-color: var(--flame);
}

.page-faq .faq-item[open] .faq-q-icon::before {
  background: var(--ink);
}

.page-faq .faq-item[open] .faq-q-icon::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-a > p {
  margin: 0 0 10px;
}

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

.page-faq .faq-a strong {
  color: var(--bone);
  font-weight: 600;
}

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

.page-faq .faq-a a:hover {
  color: var(--bone);
}

/* ---------- 客服卡片 ---------- */
.page-faq .faq-support {
  padding: 0 0 clamp(48px, 8vw, 96px);
}

.page-faq .faq-support-card {
  position: relative;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid rgba(255, 90, 31, 0.38);
  background: linear-gradient(135deg, rgba(255, 90, 31, 0.18), rgba(11, 13, 18, 0.55) 54%), rgba(30, 38, 51, 0.62);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-faq .faq-support-inner {
  display: grid;
  gap: clamp(20px, 3.5vw, 36px);
}

.page-faq .faq-support .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-support-title {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 32px);
  line-height: 1.25;
}

.page-faq .faq-support-lede {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-support-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  align-content: start;
}

.page-faq .faq-support-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(11, 13, 18, 0.58);
}

.page-faq .faq-support-label {
  min-width: 64px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-support-value {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--bone);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-spec-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-index-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-support-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }
}

@media (max-width: 719px) {
  .page-faq .faq-toolbar {
    position: static;
  }

  .page-faq .faq-block {
    scroll-margin-top: 24px;
  }

  .page-faq .faq-block-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-faq .faq-block-desc {
    grid-column: 1;
  }

  .page-faq .faq-q {
    padding: 15px 14px;
  }

  .page-faq .faq-a {
    padding: 13px 14px 16px;
  }

  .page-faq .faq-support-card {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-card,
  .page-faq .faq-item,
  .page-faq .faq-q-icon,
  .page-faq .faq-q-icon::before,
  .page-faq .faq-q-icon::after {
    transition: none;
  }
}