/* ===== 规则指引知识库 · 页面专属样式 ===== */

.page-faq {
  position: relative;
  background-color: var(--c-cream);
  color: var(--c-stone);
  font-family: var(--font-body);
  font-size: var(--fs-17);
  line-height: 1.85;
  overflow-x: hidden;
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(127, 169, 160, 0.13) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(127, 169, 160, 0.13) 1px, transparent 1px);
  background-size: var(--rule) var(--rule);
}

.page-faq > * {
  position: relative;
  z-index: 1;
}

.page-faq a {
  color: var(--c-moss);
  text-decoration-color: var(--line);
  text-underline-offset: 3px;
}

.page-faq a:hover {
  color: var(--c-clay);
  text-decoration-color: currentColor;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 通用小件 ---------- */

.page-faq .faq-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--c-gold);
  text-transform: uppercase;
}

.page-faq .faq-h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  max-width: 20ch;
}

.page-faq .faq-section-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  color: var(--c-stone);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-head {
  padding: clamp(44px, 7vw, 92px) 0 clamp(32px, 5vw, 56px);
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--c-mist);
}

.page-faq .faq-crumb a {
  color: var(--c-moss);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.page-faq .faq-crumb [aria-current="page"] {
  color: var(--c-clay);
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-ink);
  max-width: 14ch;
}

.page-faq .faq-lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(17px, 2.1vw, 22px);
  line-height: 1.8;
  color: var(--c-stone);
}

.page-faq .faq-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--line);
  border: 2px solid var(--c-grass);
  border-radius: var(--r-a);
  overflow: hidden;
}

.page-faq .faq-fact {
  background-color: var(--c-cream);
  padding: 18px 18px 20px;
}

.page-faq .faq-fact:nth-child(even) {
  background-color: var(--c-sand);
}

.page-faq .faq-fact__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4.6vw, 42px);
  line-height: 1.05;
  color: var(--c-grass);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-fact__label {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-14);
  line-height: 1.6;
  color: var(--c-stone);
}

.page-faq .faq-hero {
  margin: clamp(30px, 5vw, 52px) 0 0;
}

.page-faq .figure {
  border: 2px solid var(--c-mist);
  border-radius: var(--r-a);
  overflow: hidden;
  background-color: var(--c-sand);
  margin-left: 0;
  margin-right: 0;
}

.page-faq .figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .figure__caption {
  padding: 12px 16px;
  font-size: var(--fs-14);
  color: var(--c-stone);
  background-color: var(--c-cream);
  border-top: 1px solid var(--line);
}

/* ---------- 四步节奏条 ---------- */

.page-faq .faq-pace {
  padding: clamp(52px, 7vw, 88px) 0 clamp(40px, 5vw, 64px);
  background-color: var(--c-sand);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-trackflow {
  margin: clamp(30px, 4vw, 44px) 0 -14px;
  color: var(--c-mist);
  display: none;
}

.page-faq .faq-trackflow svg {
  display: block;
  width: 100%;
  height: 40px;
}

.page-faq .faq-track {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-track__link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background-color: var(--c-cream);
  border: 2px solid var(--c-mist);
  border-radius: var(--r-b);
  text-decoration: none;
  color: var(--c-ink);
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-faq .faq-track__link:hover,
.page-faq .faq-track__link:focus-visible {
  border-color: var(--c-gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-track__dot {
  flex: none;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background-color: var(--c-grass);
  color: var(--c-gold-soft);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-17);
  font-variant-numeric: tabular-nums;
  transition: background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-track__link:hover .faq-track__dot {
  background-color: var(--c-gold);
  color: var(--c-ink);
}

.page-faq .faq-track__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-17);
  color: var(--c-ink);
}

.page-faq .faq-track__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-moss);
  white-space: nowrap;
}

/* ---------- 四步详解 ---------- */

.page-faq .faq-steps {
  list-style: none;
  margin: clamp(40px, 6vw, 64px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(22px, 3.4vw, 30px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step__no {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 7vw, 64px);
  line-height: 1;
  color: var(--c-gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-22);
  color: var(--c-ink);
}

.page-faq .faq-step__time {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-clay);
}

.page-faq .faq-step__text {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: var(--fs-17);
  color: var(--c-stone);
}

.page-faq .faq-step__out {
  margin: 14px 0 0;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-c);
  background-color: var(--c-gold-soft);
  color: var(--c-ink);
  font-size: var(--fs-14);
}

.page-faq .faq-step__out span {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-clay);
}

/* ---------- 条款分组 ---------- */

.page-faq .faq-clauses {
  padding: clamp(52px, 7vw, 92px) 0;
}

.page-faq .faq-clauses__grid {
  margin-top: clamp(30px, 4.4vw, 50px);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
}

.page-faq .faq-rail__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__item a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  background-color: var(--c-cream);
  border: 2px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  color: var(--c-ink);
  font-size: var(--fs-14);
  white-space: nowrap;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-rail__item a:hover,
.page-faq .faq-rail__item a:focus-visible {
  border-color: var(--c-gold);
  transform: translateY(-2px);
}

.page-faq .faq-rail__dot {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background-color: var(--c-grass);
  color: var(--c-gold-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-rail__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-moss);
}

.page-faq .faq-rail__figure {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  max-width: 340px;
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-panels {
  display: grid;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-panel {
  border: 2px solid var(--c-moss);
  border-radius: var(--r-b);
  overflow: hidden;
  background-color: var(--c-cream);
}

.page-faq .faq-panel__head {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 15px 16px;
  background-color: var(--c-moss);
  color: var(--c-cream);
  cursor: pointer;
  list-style: none;
  transition: background-color 180ms var(--ease);
}

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

.page-faq .faq-panel__head:hover {
  background-color: var(--c-grass);
}

.page-faq .faq-panel__no {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--fs-22);
  color: var(--c-gold);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-panel__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-17);
  color: var(--c-cream);
}

.page-faq .faq-panel__count {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--t-on-dark-soft);
  white-space: nowrap;
}

.page-faq .faq-panel__mark {
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  border: 2px solid var(--c-gold-soft);
  border-radius: 50%;
}

.page-faq .faq-panel__mark::before,
.page-faq .faq-panel__mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background-color: var(--c-gold-soft);
}

.page-faq .faq-panel__mark::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-panel__mark::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
  transition: transform 180ms var(--ease), opacity 180ms var(--ease);
}

.page-faq .faq-panel[open] .faq-panel__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-panel__body {
  padding: clamp(18px, 3vw, 26px) clamp(16px, 3vw, 26px) clamp(20px, 3vw, 28px);
  background-color: var(--c-cream);
}

.page-faq .faq-panel__note {
  margin: 0 0 8px;
  padding-left: 14px;
  border-left: 4px solid var(--c-gold);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--c-moss);
  max-width: 68ch;
}

.page-faq .faq-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
  font-size: var(--fs-17);
  line-height: 1.75;
  color: var(--c-stone);
}

.page-faq .faq-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-list li::before {
  counter-increment: none;
  content: attr(data-idx);
}

/* ---------- 说法对照表 ---------- */

.page-faq .faq-confuse {
  padding: clamp(52px, 7vw, 88px) 0;
  background-color: var(--c-sand);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-tablewrap {
  margin-top: clamp(28px, 4vw, 44px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 2px solid var(--c-grass);
  border-radius: var(--r-c);
  background-color: var(--c-cream);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: var(--fs-17);
  line-height: 1.75;
}

.page-faq .faq-table__caption {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-moss);
  background-color: var(--c-gold-soft);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-table thead th {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--c-cream);
  background-color: var(--c-grass);
  border-bottom: 0;
}

.page-faq .faq-table tbody th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-17);
  color: var(--c-ink);
  white-space: nowrap;
}

.page-faq .faq-table tbody tr:nth-child(odd) {
  background-color: var(--c-cream);
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background-color: var(--c-sand);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 常见疑问 ---------- */

.page-faq .faq-quick {
  padding: clamp(52px, 7vw, 92px) 0;
}

.page-faq .faq-qa {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-faq .faq-qa__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(18px, 2.6vw, 24px) 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-qa__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-qa__q {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.5;
  color: var(--c-ink);
}

.page-faq .faq-qa__q::before {
  content: "Q";
  display: inline-block;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--c-gold);
  vertical-align: 2px;
}

.page-faq .faq-qa__a {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--c-stone);
  max-width: 62ch;
}

/* ---------- 下一步 ---------- */

.page-faq .faq-next {
  padding: clamp(52px, 7vw, 88px) 0 clamp(60px, 8vw, 104px);
  background-color: var(--c-grass);
  color: var(--t-on-dark);
}

.page-faq .faq-next .faq-h2 {
  color: var(--c-cream);
}

.page-faq .faq-next .faq-section-lede {
  color: var(--t-on-dark);
}

.page-faq .faq-next__list {
  list-style: none;
  margin: clamp(30px, 4.4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-next__card {
  padding: clamp(22px, 3.2vw, 32px);
  background-color: rgba(250, 246, 238, 0.06);
  border: 2px solid var(--line-dark);
  border-radius: var(--r-b);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-faq .faq-next__card:hover {
  transform: translateY(-2px);
}

.page-faq .faq-next__card--pass:hover {
  border-color: var(--c-gold);
}

.page-faq .faq-next__card--part:hover {
  border-color: var(--c-gold-soft);
}

.page-faq .faq-next__card--ask:hover {
  border-color: var(--c-clay);
}

.page-faq .faq-next__badge {
  align-self: flex-start;
  margin: 0;
  padding: 5px 12px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  background-color: var(--c-gold);
  color: var(--c-ink);
}

.page-faq .faq-next__card--part .faq-next__badge {
  background-color: var(--c-gold-soft);
}

.page-faq .faq-next__card--ask .faq-next__badge {
  background-color: var(--c-clay);
  color: var(--c-cream);
}

.page-faq .faq-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-22);
  color: var(--c-cream);
}

.page-faq .faq-next__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.85;
  color: var(--t-on-dark);
}

.page-faq .faq-next__link {
  margin-top: auto;
  padding-top: 10px;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  color: var(--c-gold-soft);
  text-decoration: none;
  border-bottom: 2px solid var(--c-gold);
  padding-bottom: 3px;
}

.page-faq .faq-next__link:hover {
  color: var(--c-cream);
  border-bottom-color: var(--c-cream);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-trackflow {
    display: block;
  }

  .page-faq .faq-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 0;
  }

  .page-faq .faq-track__link {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 18px 16px;
  }

  .page-faq .faq-track__time {
    margin-left: 0;
  }

  .page-faq .faq-step {
    grid-template-columns: minmax(90px, 140px) 1fr;
    gap: 0 clamp(20px, 3vw, 40px);
    align-items: start;
  }

  .page-faq .faq-step__no {
    padding-top: 2px;
  }

  .page-faq .faq-qa__row {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(18px, 3vw, 44px);
    align-items: start;
  }

  .page-faq .faq-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-clauses__grid {
    grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 6.5rem;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    position: relative;
  }

  .page-faq .faq-rail__list::before {
    content: "";
    position: absolute;
    left: 13px;
    top: 22px;
    bottom: 22px;
    width: 2px;
    background: linear-gradient(to bottom, var(--c-mist), rgba(127, 169, 160, 0));
  }

  .page-faq .faq-rail__item a {
    border-radius: var(--r-c);
    padding: 9px 12px 9px 9px;
    color: var(--c-stone);
    font-size: var(--fs-14);
  }

  .page-faq .faq-rail__name {
    flex: 1 1 auto;
  }

  .page-faq .faq-rail__dot {
    position: relative;
    z-index: 1;
    background-color: var(--c-cream);
    color: var(--c-moss);
    border: 2px solid var(--c-mist);
    transition: background-color 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
  }

  .page-faq .faq-rail__item a:hover .faq-rail__dot,
  .page-faq .faq-rail__item a:focus-visible .faq-rail__dot {
    background-color: var(--c-gold);
    border-color: var(--c-gold);
    color: var(--c-ink);
  }

  .page-faq .faq-panel__head {
    padding: 18px 22px;
    gap: 16px;
  }

  .page-faq .faq-panel__body {
    padding: 26px 26px 30px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-title {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-track__link,
  .page-faq .faq-rail__item a,
  .page-faq .faq-next__card,
  .page-faq .faq-panel__mark::after,
  .page-faq .faq-track__dot,
  .page-faq .faq-rail__dot {
    transition: none;
  }

  .page-faq .faq-track__link:hover,
  .page-faq .faq-rail__item a:hover,
  .page-faq .faq-next__card:hover {
    transform: none;
  }
}