.page-faq {
  --faq-side-max: 340px;
  --faq-body-text: #cfd8d4;
  color: var(--frost);
}

/* 顶部标题区 */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
  padding: clamp(20px, 4vw, 48px) 0 clamp(32px, 5vw, 56px);
}

.page-faq .faq-h1 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.04;
  font-size: clamp(32px, 6vw, 72px);
  margin: 12px 0 18px;
  color: var(--frost);
}

.page-faq .faq-hero .lede {
  max-width: 60ch;
  color: var(--faq-body-text);
  margin: 0;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

/* 图片容器 */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--steel);
  background: var(--graphite);
  position: relative;
}

.page-faq .faq-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(63, 200, 255, 0.12), transparent 55%);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-figure--side {
  border-radius: var(--radius-md);
}

.page-faq .faq-figure--side img {
  aspect-ratio: 10 / 7;
}

/* 页内分类胶囊 */
.page-faq .faq-tabs {
  position: sticky;
  top: var(--header-compact);
  z-index: 6;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0;
  background: rgba(6, 8, 10, 0.94);
  backdrop-filter: blur(8px);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-tabs::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-pill {
  flex: 0 0 auto;
  padding: 8px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-pill);
  color: var(--frost);
  font-size: var(--fs-14);
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur-mid) var(--ease-spring),
    color var(--dur-mid) var(--ease-spring),
    background-color var(--dur-mid) var(--ease-spring);
}

.page-faq .faq-pill:hover,
.page-faq .faq-pill:focus-visible {
  border-color: var(--volt);
  color: var(--volt);
  background: rgba(182, 255, 61, 0.08);
}

/* 章节骨架 */
.page-faq .faq-section {
  padding: clamp(28px, 4.5vw, 64px) 0;
  scroll-margin-top: calc(var(--header-compact) + 72px);
}

.page-faq .faq-section__head {
  margin-bottom: clamp(18px, 3vw, 30px);
  max-width: 48ch;
}

.page-faq .faq-section__head h2 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.12;
  margin: 10px 0 0;
  color: var(--frost);
}

.page-faq .faq-section__head .eyebrow {
  color: var(--signal);
}

/* 高频四问 */
.page-faq .faq-quick {
  display: grid;
  gap: 14px;
}

.page-faq .faq-quick__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 20px 22px;
  background: var(--graphite);
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .faq-quick__card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--volt);
}

.page-faq .faq-quick__q {
  margin: 0;
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.5;
  color: var(--frost);
}

.page-faq .faq-quick__a {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

@media (min-width: 780px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

/* 折叠问答 */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-item {
  background: var(--graphite);
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-mid) var(--ease-spring);
}

.page-faq .faq-item[open] {
  border-color: rgba(182, 255, 61, 0.4);
}

.page-faq .faq-item summary {
  position: relative;
  display: block;
  padding: 16px 52px 16px 22px;
  cursor: pointer;
  font-size: var(--fs-18);
  font-weight: 700;
  line-height: 1.5;
  color: var(--frost);
  list-style: none;
  transition: color var(--dur-fast) var(--ease-spring);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item summary:hover {
  color: var(--volt);
}

.page-faq .faq-item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: transparent;
  transition: background var(--dur-fast) var(--ease-spring);
}

.page-faq .faq-item[open] summary::before {
  background: var(--volt);
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-data);
  font-size: 20px;
  line-height: 1;
  color: var(--mist);
  transition: color var(--dur-fast) var(--ease-spring);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
  color: var(--volt);
}

.page-faq .faq-item__body {
  padding: 0 22px 20px 22px;
  animation: faq-fade 200ms var(--ease-spring);
}

@keyframes faq-fade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

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

.page-faq .faq-item__body a,
.page-faq .faq-section .meta-line a {
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-section .meta-line a:hover {
  color: var(--volt);
}

/* 数字与时限 */
.page-faq .num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 0.95em;
  padding: 1px 6px;
  margin: 0 2px;
  border-radius: 6px;
  background: rgba(182, 255, 61, 0.12);
  color: var(--volt);
}

/* 主内容 + 旁注双栏 */
.page-faq .faq-split {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

@media (min-width: 980px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

.page-faq .faq-side {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-faq .faq-side .aside-note {
  background: rgba(63, 200, 255, 0.06);
  border-left: 2px solid var(--signal);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 14px 16px;
}

.page-faq .faq-side .aside-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-side .aside-note a {
  color: var(--signal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-side__stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  background: var(--graphite);
}

.page-faq .faq-side__stat .stat__value {
  margin: 0;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-28);
  font-weight: 700;
  color: var(--volt);
  line-height: 1;
}

.page-faq .faq-side__stat .stat__label {
  margin: 0;
  font-size: var(--fs-14);
  color: var(--mist);
  line-height: 1.4;
}

/* 高亮纸底阅读段 */
.page-faq .faq-day {
  margin: clamp(40px, 6vw, 88px) 0;
  background: var(--day-sheet);
  color: var(--space-black);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 56px);
}

.page-faq .faq-day__eyebrow {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #4a5a4f;
}

.page-faq .faq-day__title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.14;
  margin: 10px 0 0;
  color: var(--space-black);
  max-width: 26ch;
}

.page-faq .faq-day__steps {
  display: grid;
  gap: 20px;
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 820px) {
  .page-faq .faq-day__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
}

.page-faq .faq-day__step {
  border-top: 3px solid #10141a;
  padding-top: 14px;
}

.page-faq .faq-day__step h3 {
  font-family: var(--font-display);
  font-size: var(--fs-18);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 8px;
  color: #10141a;
}

.page-faq .faq-day__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #2a3431;
}

.page-faq .faq-day .num {
  background: rgba(6, 8, 10, 0.09);
  color: #16240f;
}

/* 客服收束 */
.page-faq .faq-section--contact {
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-faq .faq-contact {
  display: grid;
  gap: 16px;
}

@media (min-width: 760px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-faq .faq-contact__card {
  padding: 22px 22px 24px;
  background: var(--graphite);
  border: 1px solid var(--steel);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-faq .faq-contact__label {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--volt);
  word-break: break-word;
}

.page-faq .faq-contact__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body-text);
}

.page-faq .faq-section .meta-line {
  margin-top: 20px;
  font-size: var(--fs-14);
  color: var(--mist);
}

/* 窄屏收敛 */
@media (max-width: 560px) {
  .page-faq .faq-item summary {
    padding: 14px 46px 14px 18px;
    font-size: 17px;
  }

  .page-faq .faq-item__body {
    padding: 0 18px 18px 18px;
  }

  .page-faq .faq-quick__card {
    padding: 16px 16px 18px 20px;
  }

  .page-faq .faq-contact__card {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__body {
    animation: none;
  }

  .page-faq .faq-pill,
  .page-faq .faq-item,
  .page-faq .faq-item summary,
  .page-faq .faq-item summary::before,
  .page-faq .faq-item summary::after {
    transition: none;
  }
}