.page-faq {
  --faq-line: rgba(44, 92, 126, .22);
  --faq-line-strong: rgba(201, 161, 90, .42);
  --faq-body: #3D4753;
  --faq-gap: clamp(44px, 6vw, 84px);
  background: var(--paper-100);
  color: var(--black-900);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--ink-900);
  color: var(--paper-100);
  padding: clamp(24px, 4vw, 42px) 0 clamp(40px, 6vw, 78px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(199, 208, 216, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(199, 208, 216, .07) 1px, transparent 1px);
  background-size: 56px 56px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: -32%;
  right: -14%;
  width: 64%;
  height: 160%;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(44, 92, 126, .60), transparent 78%);
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: rgba(246, 242, 233, .56);
}

.page-faq .faq-hero .breadcrumb__link {
  color: rgba(246, 242, 233, .72);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-faq .faq-hero .breadcrumb__link:hover {
  color: var(--sand-500);
}

.page-faq .faq-hero .breadcrumb__sep {
  margin: 0 7px;
  color: var(--sand-500);
}

.page-faq .faq-hero__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(26px, 4vw, 46px);
}

.page-faq .faq-hero__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--sand-500);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 4.6vw, 58px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.015em;
  color: var(--paper-100);
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--sand-500);
}

.page-faq .faq-hero__intro {
  margin: clamp(16px, 2vw, 22px) 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: rgba(246, 242, 233, .76);
}

/* ---------- 快速定位面板 ---------- */
.page-faq .faq-finder {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-700);
  clip-path: var(--cut);
  box-shadow: inset 0 0 0 1px rgba(201, 161, 90, .26);
}

.page-faq .faq-finder::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 44px;
  background: var(--sand-500);
}

.page-faq .faq-finder__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--sand-500);
}

.page-faq .faq-finder__label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  color: rgba(246, 242, 233, .66);
}

.page-faq .faq-finder__input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  background: rgba(10, 26, 42, .66);
  border: 1px solid rgba(201, 161, 90, .34);
  border-radius: 0;
  color: var(--paper-100);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .01em;
}

.page-faq .faq-finder__input::placeholder {
  color: rgba(246, 242, 233, .38);
}

.page-faq .faq-finder__input:focus {
  outline: none;
  border-color: var(--sand-500);
  box-shadow: 0 0 0 3px rgba(201, 161, 90, .18);
}

.page-faq .faq-finder__hint {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(246, 242, 233, .5);
}

.page-faq .faq-finder__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-finder__tags .tag {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid rgba(201, 161, 90, .38);
  background: rgba(201, 161, 90, .08);
  color: var(--sand-200);
  font-size: 13px;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-finder__tags .tag:hover,
.page-faq .faq-finder__tags .tag:focus-visible {
  background: var(--sand-500);
  color: var(--ink-900);
}

/* ---------- 分组导航条 ---------- */
.page-faq .faq-jump {
  background: var(--paper-100);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-jump__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 15px 18px 13px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--graphite-400);
  font-size: 14px;
  border-bottom: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link.is-active {
  color: var(--ink-900);
  border-bottom-color: var(--sand-500);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--sand-500);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: var(--faq-gap) 0;
  border-bottom: 1px solid var(--faq-line);
  scroll-margin-top: 88px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-group__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--sand-500);
}

.page-faq .faq-group__num::after {
  content: "";
  display: block;
  width: 42px;
  height: 1px;
  margin-top: 12px;
  background: var(--sand-500);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--ink-900);
}

.page-faq .faq-group__lead {
  margin: 10px 0 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--faq-body);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-list > .faq-item:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: transparent;
  transition: background .25s var(--ease);
}

.page-faq .faq-item:hover::before {
  background: var(--sand-200);
}

.page-faq .faq-item:has(.faq-item__btn[aria-expanded="true"])::before {
  background: var(--signal-500);
}

.page-faq .faq-item__q {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-item__btn {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 18px 4px 18px 16px;
  background: none;
  border: 0;
  border-radius: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: clamp(15.5px, 1.4vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  transition: color .2s var(--ease);
}

.page-faq .faq-item__btn:hover {
  color: var(--steel-500);
}

.page-faq .faq-item__btn:focus-visible {
  outline: 2px solid var(--sand-500);
  outline-offset: -2px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  color: var(--sand-500);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__btn .disclosure__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 5px;
}

.page-faq .faq-item__btn .disclosure__mark::before,
.page-faq .faq-item__btn .disclosure__mark::after {
  content: "";
  position: absolute;
  background: var(--steel-500);
  transition: transform .25s var(--ease), background .25s var(--ease);
}

.page-faq .faq-item__btn .disclosure__mark::before {
  top: 6px;
  left: 0;
  width: 14px;
  height: 2px;
}

.page-faq .faq-item__btn .disclosure__mark::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item__btn[aria-expanded="true"] .disclosure__mark::before {
  background: var(--signal-500);
}

.page-faq .faq-item__btn[aria-expanded="true"] .disclosure__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item__panel {
  padding: 0 4px 24px 46px;
}

.page-faq .faq-item__panel p {
  margin: 0 0 10px;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-body);
}

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

.page-faq .faq-item__panel a {
  color: var(--steel-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-item__panel a:hover {
  color: var(--signal-500);
}

.page-faq .ans-key {
  background: var(--sand-200);
  color: var(--ink-900);
  font-weight: 700;
  padding: 1px 3px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 26px 0 28px;
}

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

.page-faq .faq-figure__cap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--graphite-400);
}

.page-faq .faq-figure__cap::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  background: var(--sand-500);
}

/* ---------- 回到导航 ---------- */
.page-faq .faq-group__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--graphite-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-group__back::before {
  content: "↑";
  color: var(--sand-500);
}

.page-faq .faq-group__back:hover {
  color: var(--ink-900);
  border-bottom-color: var(--sand-500);
}

/* ---------- 第 06 组：下一步 ---------- */
.page-faq .faq-group--contact {
  background: var(--ink-900);
  border-bottom: 0;
  color: var(--paper-100);
}

.page-faq .faq-group--contact .faq-group__title {
  color: var(--paper-100);
}

.page-faq .faq-group--contact .faq-group__lead {
  color: rgba(246, 242, 233, .72);
}

.page-faq .faq-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 44px);
  padding-top: clamp(6px, 1.5vw, 14px);
}

.page-faq .faq-contact__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--sand-500);
}

.page-faq .faq-contact__items {
  display: grid;
  gap: 9px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact__items li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(246, 242, 233, .82);
}

.page-faq .faq-contact__items li::before {
  content: "";
  position: absolute;
  top: .66em;
  left: 6px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--sand-500);
  transform: rotate(45deg);
}

.page-faq .faq-contact__copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  background: rgba(201, 161, 90, .12);
  border: 1px solid rgba(201, 161, 90, .45);
  border-radius: 0;
  color: var(--sand-200);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-contact__copy:hover,
.page-faq .faq-contact__copy:focus-visible {
  background: var(--sand-500);
  border-color: var(--sand-500);
  color: var(--ink-900);
  outline: none;
}

.page-faq .faq-contact__ways {
  border-top: 1px solid rgba(201, 161, 90, .3);
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid rgba(199, 208, 216, .14);
  font-size: 14.5px;
  line-height: 1.68;
}

.page-faq .faq-contact__key {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--sand-500);
}

.page-faq .faq-contact__val {
  color: rgba(246, 242, 233, .88);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__val--mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(246, 242, 233, .58);
}

.page-faq .faq-contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: 26px;
}

.page-faq .faq-contact__links a {
  padding-bottom: 3px;
  font-size: 14.5px;
  color: var(--sand-200);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 161, 90, .5);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-contact__links a::after {
  content: " →";
  color: var(--sand-500);
}

.page-faq .faq-contact__links a:hover {
  color: #FFFFFF;
  border-bottom-color: var(--sand-500);
}

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
  .page-faq .faq-item__btn {
    padding-left: 12px;
    gap: 10px;
  }

  .page-faq .faq-item__panel {
    padding-left: 12px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-faq .faq-contact__key {
    padding-top: 0;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-group__head {
    grid-template-columns: 104px minmax(0, 1fr);
    column-gap: clamp(24px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-figure {
    margin-left: 46px;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__body {
    grid-template-columns: minmax(0, 1.42fr) minmax(280px, .82fr);
    align-items: start;
  }

  .page-faq .faq-hero__lead {
    padding-left: clamp(20px, 3vw, 34px);
    border-left: 1px solid rgba(201, 161, 90, .32);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__btn .disclosure__mark::before,
  .page-faq .faq-item__btn .disclosure__mark::after,
  .page-faq .faq-jump__link,
  .page-faq .faq-finder__tags .tag,
  .page-faq .faq-contact__copy {
    transition: none;
  }
}