.page-faq {
  background: var(--night);
  overflow-x: clip;
}

.page-faq .faq-hero {
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 7vw, 84px);
}

.page-faq .faq-hero__crumbs {
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .faq-practice,
.page-faq .faq-final,
.page-faq .faq-legend,
.page-faq .faq-fix,
.page-faq .faq-ask {
  padding: clamp(44px, 7vw, 86px) 0;
}

.page-faq .faq-outro {
  padding: clamp(40px, 6vw, 72px) 0;
}

/* ---------- 章节标题组 ---------- */

.page-faq .faq-sechead {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 42px);
  max-width: 62ch;
}

.page-faq .faq-sechead__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.page-faq .faq-sechead__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: 0.06em;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.14;
  color: var(--white);
}

.page-faq .faq-sechead__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 01 五步上手 ---------- */

.page-faq .faq-practice__figure {
  margin: 0 0 clamp(24px, 4vw, 42px);
}

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

.page-faq .faq-steprail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: clamp(20px, 3vw, 34px);
  scrollbar-width: thin;
}

.page-faq .faq-steprail__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: var(--bw) solid var(--ink);
  background: var(--night-2);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: background-color 0.12s var(--ease), color 0.12s var(--ease);
}

.page-faq .faq-steprail__link:hover,
.page-faq .faq-steprail__link:focus-visible {
  background: var(--blue);
  color: var(--white);
}

.page-faq .faq-steprail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blue-lift);
}

.page-faq .faq-steprail__link:hover .faq-steprail__num,
.page-faq .faq-steprail__link:focus-visible .faq-steprail__num {
  color: var(--white);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3.4vw, 38px);
}

.page-faq .faq-steps__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 2px 0 2px clamp(14px, 3vw, 26px);
  border-left: var(--bw) solid var(--faq-step-color, var(--blue));
}

.page-faq .faq-steps__item:nth-child(1) { --faq-step-color: var(--blue); }
.page-faq .faq-steps__item:nth-child(2) { --faq-step-color: var(--blue-lift); }
.page-faq .faq-steps__item:nth-child(3) { --faq-step-color: var(--net); }
.page-faq .faq-steps__item:nth-child(4) { --faq-step-color: var(--foreign); }
.page-faq .faq-steps__item:nth-child(5) { --faq-step-color: var(--corner); }

.page-faq .faq-steps__num {
  font-family: var(--font-mono);
  font-size: 44px;
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: var(--faq-step-color, var(--blue));
}

.page-faq .faq-steps__body {
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.4vw, 26px);
  letter-spacing: 0.04em;
  line-height: 1.3;
  color: var(--white);
}

.page-faq .faq-steps__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--white);
}

.page-faq .faq-steps__out {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

/* ---------- 02 终场核算 ---------- */

.page-faq .faq-final__split {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-faq .faq-final__text {
  display: grid;
  gap: 16px;
  max-width: 62ch;
}

.page-faq .faq-final__text p {
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--white);
}

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

.page-faq .faq-final__rules {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  border-top: 1px solid rgba(124, 134, 168, 0.35);
}

.page-faq .faq-final__rules li {
  position: relative;
  padding: 15px 0 15px 24px;
  border-bottom: 1px solid rgba(124, 134, 168, 0.35);
  font-size: 16px;
  line-height: 1.8;
  color: var(--white);
}

.page-faq .faq-final__rules li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 10px;
  height: 10px;
  background: var(--red);
}

/* ---------- 03 色标速查 ---------- */

.page-faq .faq-legend__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--bw) solid var(--blue);
  background: var(--night-2);
}

.page-faq .faq-legend__table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-faq .faq-legend__table caption {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: var(--ink);
}

.page-faq .faq-legend__table th,
.page-faq .faq-legend__table td {
  padding: 15px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid rgba(124, 134, 168, 0.3);
  color: var(--white);
}

.page-faq .faq-legend__table thead th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue-lift);
  background: rgba(6, 8, 15, 0.62);
}

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

.page-faq .faq-legend__table tbody tr {
  transition: background-color 0.12s var(--ease);
}

.page-faq .faq-legend__table tbody tr:hover {
  background: rgba(47, 107, 232, 0.16);
}

.page-faq .faq-legend__key {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .faq-legend__note {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 68ch;
  font-size: 12px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 04 勘误路径（暖纸面） ---------- */

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

.page-faq .faq-fix .faq-sechead__idx {
  color: var(--muted-ink);
}

.page-faq .faq-fix .faq-sechead__title {
  color: var(--ink);
}

.page-faq .faq-fix .faq-sechead__lead {
  color: var(--muted-ink);
}

.page-faq .faq-fix__tiers {
  display: grid;
  gap: 16px;
}

.page-faq .faq-fix__tier {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: var(--bw) solid var(--ink);
  background: var(--paper-2);
}

.page-faq .faq-fix__tier:nth-child(1) { box-shadow: inset 8px 0 0 var(--blue); }
.page-faq .faq-fix__tier:nth-child(2) { box-shadow: inset 8px 0 0 var(--corner); }
.page-faq .faq-fix__tier:nth-child(3) { box-shadow: inset 8px 0 0 var(--red); }

.page-faq .faq-fix__tier-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted-ink);
}

.page-faq .faq-fix__tier-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.1;
  color: var(--ink);
}

.page-faq .faq-fix__tier-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-ink);
}

.page-faq .faq-fix__body {
  margin-top: clamp(28px, 4vw, 46px);
  max-width: 68ch;
}

.page-faq .faq-fix__subtitle {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: 0.04em;
  color: var(--ink);
}

.page-faq .faq-fix__checklist {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 38px);
  padding: 0;
}

.page-faq .faq-fix__checklist li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--paper-2);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-fix__checknum {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blue);
}

.page-faq .faq-fix__seal {
  margin: 0 0 clamp(26px, 4vw, 40px);
}

.page-faq .faq-fix__seal p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-fix__text {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted-ink);
}

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

/* ---------- 05 常见疑问 ---------- */

.page-faq .faq-ask__filter {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-ask__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--blue-lift);
}

.page-faq .faq-ask__input {
  width: 100%;
  max-width: 460px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--white);
  background: var(--night-2);
  border: var(--bw) solid var(--blue);
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}

.page-faq .faq-ask__input::placeholder {
  color: var(--muted);
}

.page-faq .faq-ask__input:focus-visible {
  outline: 3px solid var(--corner);
  outline-offset: 2px;
}

.page-faq .faq-ask__hint {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

.page-faq .faq-ask__list {
  border-top: 1px solid rgba(124, 134, 168, 0.3);
}

.page-faq .faq-ask__item {
  border-bottom: 1px solid rgba(124, 134, 168, 0.3);
}

.page-faq .faq-ask__item summary {
  position: relative;
  display: block;
  padding: 18px 46px 18px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  line-height: 1.6;
  color: var(--white);
  transition: background-color 0.12s var(--ease);
}

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

.page-faq .faq-ask__item summary:hover {
  background: rgba(47, 107, 232, 0.12);
}

.page-faq .faq-ask__item summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: transparent;
  transition: background-color 0.12s var(--ease);
}

.page-faq .faq-ask__item[open] summary::before {
  background: var(--blue);
}

.page-faq .faq-ask__item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--blue-lift);
}

.page-faq .faq-ask__item[open] summary::after {
  content: "–";
  color: var(--corner);
}

.page-faq .faq-ask__answer {
  margin: 0;
  padding: 0 18px 22px 18px;
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--white);
}

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

/* ---------- 收束 ---------- */

.page-faq .faq-outro__inner {
  display: grid;
  gap: 16px;
  padding-left: clamp(14px, 3vw, 26px);
  border-left: 6px solid var(--net);
}

.page-faq .faq-outro__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.05em;
  color: var(--white);
}

.page-faq .faq-outro__text {
  margin: 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-steps__item {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(16px, 2.6vw, 28px);
    align-items: start;
  }

  .page-faq .faq-steps__num {
    font-size: clamp(52px, 7vw, 78px);
  }
}

@media (min-width: 760px) {
  .page-faq .faq-fix__tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-final__split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-faq .faq-final__figure .media-frame__img {
    aspect-ratio: 3 / 2;
    object-fit: cover;
  }
}