.page-faq {
  --faq-rail: 248px;
  --faq-stem: 23px;
  --faq-gap: clamp(44px, 6vw, 92px);
  display: block;
  background: var(--ink);
  color: var(--cream);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-block: 18px 0;
}
.page-faq .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
}
.page-faq .breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.page-faq .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--line-strong);
}
.page-faq .breadcrumb-item a {
  color: var(--ice);
  text-decoration: none;
}
.page-faq .breadcrumb-item a:hover,
.page-faq .breadcrumb-item a:focus-visible {
  color: var(--blue);
}
.page-faq .breadcrumb-item.is-current {
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  margin-top: 22px;
  border-block: 1px solid var(--line);
  background: var(--ink-2);
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: 60%;
  height: 172%;
  background: linear-gradient(155deg, rgba(255, 90, 54, 0.34), rgba(45, 155, 240, 0.14) 62%, transparent);
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 205, 212, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 205, 212, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(38px, 6.5vw, 82px) clamp(34px, 5.5vw, 64px);
  max-width: 960px;
}
.page-faq .faq-hero .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--spring-yellow);
}
.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cream);
}
.page-faq .faq-hero-lead {
  margin: 22px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--silver);
}
.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 44px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .faq-figure {
  background: var(--ink);
  padding: 15px 16px;
}
.page-faq .faq-figure-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 32px);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--spring-yellow);
}
.page-faq .faq-figure-label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  padding-block: clamp(32px, 4.5vw, 60px) clamp(56px, 8vw, 100px);
}

/* ---------- 粘性目录 ---------- */
.page-faq .faq-rail {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 20px 18px;
}
.page-faq .faq-rail-title {
  margin: 0 0 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--ice);
}
.page-faq .faq-rail-group + .faq-rail-group {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-rail-label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}
.page-faq .faq-rail-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-rail-list a {
  display: block;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  color: var(--cream);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--blue);
  border-left-color: var(--blue);
  background: rgba(45, 155, 240, 0.08);
}
.page-faq .faq-rail-list a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

/* ---------- 内容列 ---------- */
.page-faq .faq-content {
  min-width: 0;
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-section {
  scroll-margin-top: 96px;
  min-width: 0;
}
.page-faq .faq-section-head {
  max-width: 62ch;
}
.page-faq .faq-section .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--season-accent);
}
.page-faq .faq-section h2 {
  margin: 12px 0 0;
  font-size: clamp(23px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--cream);
}
.page-faq .faq-section-lead {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 步骤卡链 ---------- */
.page-faq .step-chain {
  position: relative;
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .step-chain::before {
  content: "";
  position: absolute;
  left: var(--faq-stem);
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: var(--line);
}
.page-faq .step-card {
  position: relative;
  padding-left: 66px;
}
.page-faq .step-num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--ink);
  border: 1px solid var(--line-strong);
  color: var(--spring-yellow);
  font-family: var(--font-mono);
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.page-faq .step-body {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 18px 20px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.page-faq .step-card:hover .step-body {
  border-color: var(--blue);
  transform: translateY(-2px);
}
.page-faq .step-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}
.page-faq .step-text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}
.page-faq .step-gain {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--spring-green);
}

/* ---------- 通勤计时 ---------- */
.page-faq .commute-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: clamp(24px, 3.6vw, 40px);
}
.page-faq .commute-track {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .commute-seg {
  border: 1px solid var(--line);
  border-left: 2px solid var(--season-accent);
  background: var(--ink-2);
  padding: 16px 18px;
}
.page-faq .commute-seg:nth-child(1) {
  border-left-color: var(--spring-green);
}
.page-faq .commute-seg:nth-child(2) {
  border-left-color: var(--blue);
}
.page-faq .commute-seg:nth-child(3) {
  border-left-color: var(--orange);
}
.page-faq .commute-seg:nth-child(4) {
  border-left-color: var(--amber);
}
.page-faq .commute-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  font-variant-numeric: tabular-nums;
  color: var(--ice);
}
.page-faq .commute-bar {
  display: block;
  height: 3px;
  margin: 9px 0 12px;
  background: var(--orange);
}
.page-faq .commute-seg:nth-child(1) .commute-bar {
  width: 22%;
  background: var(--spring-green);
}
.page-faq .commute-seg:nth-child(2) .commute-bar {
  width: 34%;
  background: var(--blue);
}
.page-faq .commute-seg:nth-child(3) .commute-bar {
  width: 28%;
  background: var(--orange);
}
.page-faq .commute-seg:nth-child(4) .commute-bar {
  width: 18%;
  background: var(--amber);
}
.page-faq .commute-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}
.page-faq .commute-text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: 0;
}
.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink-2);
  object-fit: cover;
}
.page-faq .faq-media--tall img {
  aspect-ratio: 3 / 4;
}
.page-faq .faq-media--wide img {
  aspect-ratio: 14 / 9;
  margin-top: clamp(24px, 3.6vw, 40px);
}
.page-faq .faq-media .media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 联赛切换 ---------- */
.page-faq .switch-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(24px, 3.6vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .switch-card {
  background: var(--ink-2);
  padding: 18px 20px;
}
.page-faq .switch-title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--spring-yellow);
}
.page-faq .switch-text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 交锋阅读顺序 ---------- */
.page-faq .read-order {
  display: grid;
  gap: 0;
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-faq .read-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.page-faq .read-idx {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}
.page-faq .read-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}
.page-faq .read-text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 离线与刷新 ---------- */
.page-faq .sync-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(24px, 3.6vw, 40px);
}
.page-faq .sync-card {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 18px 20px;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.page-faq .sync-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}
.page-faq .sync-title {
  margin: 12px 0 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--cream);
}
.page-faq .sync-text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
}
.page-faq .sync-card .tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: 0.08em;
}

/* ---------- 第三版对照板 ---------- */
.page-faq .v3-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(24px, 3.6vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .v3-col {
  background: var(--ink-2);
  padding: 20px 20px 22px;
}
.page-faq .v3-col--new {
  background: linear-gradient(180deg, rgba(255, 90, 54, 0.12), transparent 68%), var(--ink-2);
}
.page-faq .v3-col--tune {
  background: linear-gradient(180deg, rgba(168, 199, 232, 0.12), transparent 68%), var(--ink-2);
}
.page-faq .v3-col--keep {
  background: linear-gradient(180deg, rgba(224, 161, 0, 0.1), transparent 68%), var(--ink-2);
}
.page-faq .v3-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cream);
}
.page-faq .v3-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: var(--orange);
}
.page-faq .v3-col--tune .v3-dot {
  background: var(--ice);
}
.page-faq .v3-col--keep .v3-dot {
  background: var(--amber);
}
.page-faq .v3-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .v3-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}
.page-faq .v3-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--line-strong);
}

/* ---------- 下一步 ---------- */
.page-faq .faq-next {
  border-top: 1px solid var(--line);
  padding-top: clamp(28px, 4vw, 44px);
}
.page-faq .faq-next-title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--cream);
}
.page-faq .faq-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--line);
  border: 1px solid var(--line);
}
.page-faq .faq-next-card {
  display: grid;
  gap: 8px;
  background: var(--ink-2);
  padding: 18px 20px;
  text-decoration: none;
  transition: background-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.page-faq .faq-next-card:hover,
.page-faq .faq-next-card:focus-visible {
  background: rgba(45, 155, 240, 0.1);
  transform: translateY(-2px);
}
.page-faq .faq-next-card:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
.page-faq .faq-next-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--orange-soft);
}
.page-faq .faq-next-text {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--cream);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-faq .sync-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-faq .faq-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .commute-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
    gap: 32px;
  }
  .page-faq .switch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-faq .v3-board {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
    align-items: start;
  }
  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-body,
  .page-faq .sync-card,
  .page-faq .faq-next-card {
    transition: none;
  }
  .page-faq .step-card:hover .step-body,
  .page-faq .sync-card:hover,
  .page-faq .faq-next-card:hover,
  .page-faq .faq-next-card:focus-visible {
    transform: none;
  }
}