.page-faq {
  background: var(--paper-050);
  color: var(--ink-900);
}

/* ---------- 框景首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--ink-900);
  color: var(--paper-050);
  padding: calc(var(--header-h) + 40px) 0 56px;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -34%;
  width: 72%;
  height: 96%;
  background: repeating-linear-gradient(
    112deg,
    transparent 0 26px,
    rgba(255, 90, 31, .16) 26px 30px
  );
  transform: rotate(-6deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-orange) 0 38%, var(--signal-blue) 38% 62%, transparent 62%);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(198, 190, 176, .38);
  padding: 28px 20px 30px;
}

.page-faq .faq-hero__kicker {
  margin: 22px 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-orange);
}

.page-faq .faq-hero__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 34px;
  line-height: 1.08;
  letter-spacing: -.02em;
}

.page-faq .faq-hero__title::after {
  content: "";
  display: block;
  width: 88px;
  height: 6px;
  margin-top: 18px;
  background: var(--brand-orange);
  transform: skewX(-14deg);
}

.page-faq .faq-hero__lead {
  max-width: 44em;
  margin: 0 0 28px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(247, 243, 236, .84);
}

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

.page-faq .faq-jump a {
  display: inline-block;
  padding: 7px 13px;
  border: 1px solid rgba(198, 190, 176, .45);
  color: var(--paper-050);
  font-size: 13px;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  border-color: var(--brand-orange);
  background: rgba(255, 90, 31, .14);
  color: var(--orange-200);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-steps {
  padding-top: 44px;
}

.page-faq .step-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .step-row__item {
  position: relative;
  padding-top: 22px;
  border-top: 3px solid var(--ink-900);
}

.page-faq .step-row__item:first-child {
  border-top-color: var(--brand-orange);
}

.page-faq .step-row__item::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 38%;
  height: 3px;
  background: var(--rule-300);
  transform: skewX(-32deg);
  transform-origin: right center;
}

.page-faq .step-row__no {
  display: block;
  margin-bottom: 10px;
  font-size: 26px;
  line-height: 1;
  color: var(--brand-orange);
  letter-spacing: .04em;
}

.page-faq .step-row__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
}

.page-faq .step-row__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted-600);
}

.page-faq .step-row__body a {
  color: var(--signal-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .step-row__hint {
  margin: 26px 0 0;
  font-size: 14px;
  color: var(--muted-600);
}

.page-faq .step-row__hint a {
  color: var(--brand-orange);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 数据条带 ---------- */
.page-faq .faq-stats {
  margin-top: 44px;
  background: var(--ink-700);
  border-top: 1px solid rgba(198, 190, 176, .22);
  border-bottom: 1px solid rgba(198, 190, 176, .22);
  padding: 26px 0;
}

.page-faq .stat-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .stat-strip__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 14px;
  border-left: 2px solid var(--brand-orange);
}

.page-faq .stat-strip__num {
  font-size: 30px;
  line-height: 1;
  font-weight: 700;
  color: var(--paper-050);
  letter-spacing: .02em;
}

.page-faq .stat-strip__unit {
  margin-left: 4px;
  font-size: 14px;
  color: var(--orange-200);
  letter-spacing: .04em;
}

.page-faq .stat-strip__label {
  font-size: 13px;
  line-height: 1.6;
  color: rgba(247, 243, 236, .68);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  padding: 44px 0 72px;
}

.page-faq .faq-rail {
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule-300);
}

.page-faq .faq-rail .rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted-600);
}

.page-faq .faq-rail .rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail .rail__link {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--rule-300);
  background: var(--paper-050);
  color: var(--ink-900);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-faq .faq-rail .rail__no {
  color: var(--brand-orange);
  font-size: 12px;
}

.page-faq .faq-rail .rail__link:hover,
.page-faq .faq-rail .rail__link:focus-visible {
  border-color: var(--brand-orange);
  background: var(--orange-200);
}

.page-faq .faq-rail .rail__link[aria-current="true"] {
  border-color: var(--brand-orange);
  background: var(--ink-900);
  color: var(--paper-050);
}

.page-faq .faq-rail .rail__link[aria-current="true"] .rail__no {
  color: var(--volt-400);
}

.page-faq .faq-main {
  display: grid;
  gap: 60px;
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  position: relative;
  min-width: 0;
}

.page-faq .faq-sec__head {
  margin-bottom: 24px;
}

.page-faq .faq-sec__no {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-orange);
}

.page-faq .faq-sec__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 25px;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-faq .faq-sec__title::after {
  content: "";
  display: block;
  width: 64px;
  height: 5px;
  margin-top: 12px;
  background: var(--ink-900);
  transform: skewX(-14deg);
}

.page-faq .faq-sec__lead {
  max-width: 46em;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted-600);
}

/* ---------- 阵容变动 ---------- */
.page-faq .lineup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .lineup-card {
  position: relative;
  background: var(--paper-100);
  border: 1px solid var(--rule-300);
  box-shadow: 3px 3px 0 rgba(10, 14, 26, .08);
  padding: 18px 18px 18px 20px;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .lineup-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--brand-orange);
}

.page-faq .lineup-card:hover {
  transform: translateY(-2px);
  border-color: var(--brand-orange);
  box-shadow: 6px 6px 0 rgba(10, 14, 26, .14);
}

.page-faq .lineup-card__no {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--brand-orange);
}

.page-faq .lineup-card__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
}

.page-faq .lineup-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-600);
}

.page-faq .lineup-figure {
  margin: 0 0 26px;
}

.page-faq .lineup-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 18px;
  background: var(--ink-900);
  color: var(--paper-050);
}

.page-faq .lineup-timeline__item {
  position: relative;
  padding-left: 22px;
}

.page-faq .lineup-timeline__dot {
  position: absolute;
  left: 0;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--brand-orange);
}

.page-faq .lineup-timeline__dot--volt {
  background: var(--volt-400);
}

.page-faq .lineup-timeline__time {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--orange-200);
}

.page-faq .lineup-timeline__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(247, 243, 236, .82);
}

/* ---------- 榜单 ---------- */
.page-faq .board-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
}

.page-faq .board-split__sub {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  padding-left: 12px;
  border-left: 3px solid var(--signal-blue);
}

.page-faq .board-split__sub:not(:first-child) {
  margin-top: 26px;
}

.page-faq .board-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule-300);
}

.page-faq .board-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule-300);
}

.page-faq .board-list__key {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brand-orange);
}

.page-faq .board-list__val {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted-600);
}

.page-faq .board-split__p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-600);
}

.page-faq .board-split__figure {
  margin: 0;
}

/* ---------- 资料导出 ---------- */
.page-faq .fmt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.page-faq .fmt-card {
  padding: 18px;
  background: var(--paper-050);
  border: 1px solid var(--rule-300);
  border-top: 4px solid var(--ink-900);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-faq .fmt-card:hover {
  transform: translateY(-2px);
  border-top-color: var(--brand-orange);
}

.page-faq .fmt-card__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
}

.page-faq .fmt-card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-600);
}

.page-faq .export-notes {
  display: grid;
  gap: 10px;
  margin-bottom: 30px;
}

.page-faq .export-notes__item {
  margin: 0;
  padding: 12px 14px;
  background: var(--paper-100);
  border-left: 3px solid var(--amber-500);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-700);
}

.page-faq .export-notes__key {
  display: inline-block;
  margin-right: 8px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-900);
  background: var(--orange-200);
  padding: 2px 7px;
}

.page-faq .field-wrap {
  margin-bottom: 30px;
}

.page-faq .field-wrap__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  padding-left: 12px;
  border-left: 3px solid var(--brand-orange);
}

.page-faq .field-wrap__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--rule-300);
}

.page-faq .field-table {
  min-width: 560px;
  width: 100%;
}

.page-faq .field-table__caption {
  caption-side: bottom;
  padding: 10px 12px;
  text-align: left;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted-600);
  background: var(--paper-050);
  border-top: 1px solid var(--rule-300);
}

.page-faq .trouble {
  padding: 20px;
  background: var(--paper-100);
  border: 1px solid var(--rule-300);
}

.page-faq .trouble__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
}

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

.page-faq .trouble__q {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 15px;
  color: var(--ink-900);
}

.page-faq .trouble__q::before {
  content: "?";
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-right: 8px;
  line-height: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-050);
  background: var(--brand-orange);
}

.page-faq .trouble__a {
  margin: 0 0 18px;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-600);
}

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

/* ---------- 账号问答 ---------- */
.page-faq .acct-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .acct-card {
  padding: 18px 20px;
  background: var(--paper-050);
  border: 1px solid var(--rule-300);
  box-shadow: 3px 3px 0 rgba(10, 14, 26, .07);
}

.page-faq .acct-card__q {
  margin: 0 0 9px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
}

.page-faq .acct-card__q::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  background: var(--brand-orange);
  transform: skewX(-16deg);
}

.page-faq .acct-card__a {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-600);
}

.page-faq .acct-card__a a {
  color: var(--signal-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 分组折叠 ---------- */
.page-faq .qa-group {
  margin-bottom: 26px;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  letter-spacing: .02em;
}

.page-faq .qa-group__mark {
  display: inline-block;
  width: 24px;
  height: 24px;
  line-height: 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper-050);
  background: var(--ink-900);
  transform: skewX(-10deg);
}

.page-faq .qa {
  border: 1px solid var(--rule-300);
  border-left: 4px solid var(--rule-300);
  background: var(--paper-100);
  margin-bottom: 8px;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-faq .qa[open] {
  border-left-color: var(--brand-orange);
  background: var(--paper-050);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-900);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .qa__q:hover {
  color: var(--brand-orange);
}

.page-faq .qa__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--brand-orange);
  flex: none;
}

.page-faq .qa[open] .qa__q::after {
  content: "–";
}

.page-faq .qa__no {
  flex: none;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted-600);
}

.page-faq .qa__a {
  padding: 0 16px 16px 40px;
}

.page-faq .qa__a p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted-600);
}

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

/* ---------- 结尾引导 ---------- */
.page-faq .faq-cta__box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 26px 22px;
  background: var(--ink-900);
  color: var(--paper-050);
  border: 1px solid var(--ink-700);
  border-bottom: 5px solid var(--brand-orange);
}

.page-faq .faq-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.25;
}

.page-faq .faq-cta__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(247, 243, 236, .8);
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.page-faq .faq-cta__actions .btn {
  flex: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-h) + 56px) 0 68px;
  }

  .page-faq .faq-hero__inner {
    padding: 36px 32px 40px;
  }

  .page-faq .faq-hero__title {
    font-size: 46px;
  }

  .page-faq .step-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-faq .stat-strip {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-faq .lineup-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .lineup-timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
  }

  .page-faq .board-list__item {
    grid-template-columns: 120px 1fr;
    align-items: baseline;
    gap: 14px;
  }

  .page-faq .fmt-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .acct-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-cta__box {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: center;
    padding: 34px 30px;
  }

  .page-faq .faq-sec__title {
    font-size: 29px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 52px;
    padding: 60px 0 96px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    border-bottom: none;
    border-left: 1px solid var(--rule-300);
    padding: 0 0 0 18px;
  }

  .page-faq .faq-rail .rail__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail .rail__list li {
    margin-bottom: 6px;
  }

  .page-faq .faq-rail .rail__link {
    white-space: normal;
    justify-content: flex-start;
    border-color: transparent;
    background: transparent;
    padding: 8px 10px;
  }

  .page-faq .faq-rail .rail__link:hover,
  .page-faq .faq-rail .rail__link:focus-visible {
    border-color: var(--rule-300);
    background: var(--paper-100);
    color: var(--ink-900);
  }

  .page-faq .faq-rail .rail__link[aria-current="true"] {
    border-color: var(--brand-orange);
    background: var(--ink-900);
    color: var(--paper-050);
  }

  .page-faq .lineup-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .board-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 34px;
  }

  .page-faq .field-wrap__scroll {
    border: none;
  }

  .page-faq .field-table {
    border: 1px solid var(--rule-300);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}