/* ===== 支持中心 / page-faq ===== */
.page-faq {
  --faq-index-w: 258px;
  --faq-rule: rgba(11, 30, 51, 0.16);
  --faq-sticky-top: 112px;
  background: var(--arena-900);
  color: var(--on-dark);
}

/* 面包屑 */
.page-faq .faq-crumb {
  padding-top: clamp(14px, 2.6vw, 28px);
}

.page-faq .breadcrumb__current {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 4vw, 44px) 0 clamp(36px, 6vw, 76px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(118deg, rgba(53, 242, 208, 0.1), transparent 46%),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 92px);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.25) 72%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.25) 72%, transparent 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -34%;
  right: -12%;
  width: min(560px, 78vw);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--orange-500));
  transform: rotate(38deg);
  transform-origin: right center;
  opacity: 0.75;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper-50);
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.78;
  color: var(--on-dark-dim);
}

.page-faq .faq-hero__intro + .faq-hero__intro {
  margin-top: 12px;
}

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

/* 右侧状态与快捷位面板 */
.page-faq .faq-hero__panel {
  position: relative;
  display: grid;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--command-800);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 48px;
  height: 3px;
  background: var(--orange-500);
}

.page-faq .faq-hero__panel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
}

.page-faq .faq-live {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--cyan-400);
}

.page-faq .faq-live__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(53, 242, 208, 0.15);
}

.page-faq .faq-facts {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-facts__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-facts dt {
  font-size: 13px;
  color: var(--on-dark-muted);
}

.page-faq .faq-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  color: var(--on-dark);
}

.page-faq .faq-pin {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.page-faq .faq-pin__label {
  margin: 0;
}

.page-faq .faq-pin__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

.page-faq .faq-pin__link {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.4);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-pin__link:hover,
.page-faq .faq-pin__link:focus-visible {
  color: var(--orange-500);
  border-color: var(--orange-500);
}

/* ===== 米白问答区 ===== */
.page-faq .faq-body {
  background: var(--cream-100);
  color: var(--on-light);
  padding: clamp(30px, 5vw, 68px) 0 clamp(40px, 6vw, 84px);
}

.page-faq .faq-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding: 12px 16px;
  border-left: 3px solid var(--orange-500);
  background: rgba(255, 122, 60, 0.09);
  font-size: 14px;
  line-height: 1.7;
  color: var(--on-light);
}

.page-faq .faq-notice__dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--orange-500);
}

.page-faq .faq-shell {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

/* 分类索引 */
.page-faq .faq-index {
  border-top: 2px solid var(--on-light);
  padding-top: 14px;
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-light-muted);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--faq-rule);
  font-size: 15px;
  font-weight: 600;
  color: var(--on-light);
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--clay-500);
  padding-left: 6px;
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--on-light-muted);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--on-light-muted);
}

/* 问题组 */
.page-faq .faq-group {
  scroll-margin-top: var(--faq-sticky-top);
  padding-bottom: clamp(26px, 4vw, 44px);
}

.page-faq .faq-group + .faq-group {
  border-top: 1px dashed var(--line-light);
  padding-top: clamp(26px, 4vw, 44px);
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 200;
  line-height: 1;
  color: var(--clay-500);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.3vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--on-light);
}

.page-faq .faq-group__desc {
  margin: 6px 0 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--on-light-muted);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 20px;
}

.page-faq .faq-figure--square {
  max-width: 340px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line-light);
  background: var(--command-800);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--on-light-muted);
}

/* 手风琴 */
.page-faq .faq-item {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-q {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--on-light);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-q:hover {
  color: var(--clay-500);
}

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--orange-500);
  outline-offset: 3px;
}

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

.page-faq .faq-q__mark {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-left: auto;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--rock-600);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-q__mark::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 2px;
}

.page-faq .faq-q__mark::after {
  left: 7px;
  top: 0;
  width: 2px;
  height: 16px;
}

.page-faq .faq-item[open] .faq-q__mark::after {
  transform: scaleY(0);
}

.page-faq .faq-item[open] .faq-q__mark::before {
  background: var(--clay-500);
}

.page-faq .faq-a {
  display: grid;
  gap: 12px;
  padding: 0 2px 22px;
}

.page-faq .faq-a p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--on-light-muted);
}

.page-faq .faq-inline-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--clay-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 106, 75, 0.45);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--on-light);
  border-color: var(--on-light);
}

/* 操作路径条 */
.page-faq .faq-path {
  display: grid;
  gap: 8px;
  padding: 12px 14px;
  border: 1px solid var(--faq-rule);
  border-left: 3px solid var(--moss-500);
  background: var(--paper-50);
}

.page-faq .faq-path__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss-500);
}

.page-faq .faq-path__steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 0;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-path__steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 23px;
  padding-right: 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--on-light);
}

.page-faq .faq-path__steps li::before {
  content: counter(faqstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--moss-500);
  color: var(--paper-50);
  font-size: 9.5px;
  line-height: 15px;
  text-align: center;
}

.page-faq .faq-path__steps li:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: 3px;
  top: 1px;
  color: var(--silver-400);
  font-size: 12px;
}

/* ===== 结尾求助区 ===== */
.page-faq .faq-assist {
  background: var(--arena-900);
  color: var(--on-dark);
  border-top: 1px solid var(--line-strong);
  padding: clamp(36px, 6vw, 76px) 0;
}

.page-faq .faq-assist__inner {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-assist__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--paper-50);
}

.page-faq .faq-assist__text {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--on-dark-dim);
}

.page-faq .faq-assist__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-assist__cards {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-assist__card {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  background: var(--command-800);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--cyan-400);
}

.page-faq .faq-assist__card-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-faq .faq-assist__card-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-faq .faq-assist__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-faq .faq-hero__panel {
    margin-top: 8px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-sticky-top);
  }

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

@media (max-width: 520px) {
  .page-faq .faq-q {
    font-size: 15px;
  }

  .page-faq .faq-a p {
    font-size: 14px;
  }

  .page-faq .faq-path__steps li {
    padding-right: 16px;
  }

  .page-faq .faq-figure--square {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-q,
  .page-faq .faq-q__mark::before,
  .page-faq .faq-q__mark::after,
  .page-faq .faq-inline-link,
  .page-faq .faq-pin__link {
    transition: none;
  }
}