.page-faq {
  --faq-pad: clamp(44px, 7vw, 80px);
  background: var(--ink-800);
  color: var(--mist);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq [hidden] {
  display: none !important;
}

.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
}

.page-faq .breadcrumbs a {
  color: var(--mint);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.16;
  letter-spacing: -.01em;
  font-weight: 800;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: var(--border);
  background:
    linear-gradient(90deg, rgba(27, 70, 58, .38) 1px, transparent 1px) 0 0 / 64px 64px,
    linear-gradient(0deg, rgba(27, 70, 58, .38) 1px, transparent 1px) 0 0 / 64px 64px,
    radial-gradient(120% 90% at 90% 4%, rgba(53, 242, 207, .14), transparent 62%),
    var(--ink-800);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  padding-top: clamp(22px, 4vw, 42px);
  padding-bottom: clamp(34px, 6vw, 68px);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(29px, 6.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -.015em;
  font-weight: 800;
  max-width: 21ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--sage);
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.85;
}

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

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: var(--border);
  list-style: none;
  color: var(--sage);
  font-size: 13px;
  letter-spacing: .02em;
}

.page-faq .faq-hero__k {
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .faq-hero__viz {
  border: 2px solid var(--ink-900);
  background: var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__viz svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* ---------- 通用区头 ---------- */
.page-faq .faq-head {
  max-width: 64ch;
}

.page-faq .faq-head p {
  margin: 12px 0 0;
  color: var(--sage);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 快速诊断索引 ---------- */
.page-faq .faq-index {
  padding-block: var(--faq-pad);
}

.page-faq .faq-index__grid {
  display: grid;
  gap: 28px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-index__media {
  margin: 0;
  border: 2px solid var(--ink-900);
  background: var(--ink-900);
  box-shadow: var(--shadow-hard);
}

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

.page-faq .faq-index__cap {
  padding: 10px 12px;
  border-top: var(--border);
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  line-height: 1.6;
}

.page-faq .faq-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border);
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 2px 12px;
  padding: 16px 0;
  border-bottom: var(--border);
  transition: background .15s ease;
}

.page-faq .faq-index__item:hover {
  background: rgba(53, 242, 207, .05);
}

.page-faq .faq-index__num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .faq-index__body {
  grid-column: 2;
  min-width: 0;
}

.page-faq .faq-index__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-faq .faq-index__desc {
  margin: 6px 0 0;
  color: var(--sage);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-index__go {
  grid-column: 2;
  justify-self: start;
  margin-top: 8px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-decoration: none;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 1px;
}

.page-faq .faq-index__go:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 问答区 ---------- */
.page-faq .faq-board {
  padding-block: var(--faq-pad);
  border-top: var(--border);
  background:
    linear-gradient(180deg, rgba(12, 42, 35, .55), transparent 42%),
    var(--ink-800);
}

.page-faq .faq-board__layout {
  display: grid;
  gap: 26px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-rail {
  padding: 18px;
  border: var(--border);
  background: var(--ink-700);
}

.page-faq .faq-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

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

.page-faq .faq-rail__list li {
  border-bottom: 1px dashed rgba(27, 70, 58, .9);
}

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

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: color .15s ease, padding-left .15s ease;
}

.page-faq .faq-rail__list a:hover {
  color: var(--cyan);
  padding-left: 5px;
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}

.page-faq .faq-rail__hint {
  margin: 14px 0 0;
  color: var(--sage);
  font-size: 12px;
  line-height: 1.7;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding-bottom: 16px;
  border-bottom: var(--border);
}

.page-faq .faq-filter__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mint);
}

.page-faq .faq-filter__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}

.page-faq .faq-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--line);
  transition: background .15s ease;
}

.page-faq .faq-chip:hover {
  color: var(--mist);
  border-color: var(--mint);
}

.page-faq .faq-chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-faq .faq-chip[aria-pressed="true"]::before {
  background: var(--ink-900);
}

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

.page-faq .faq-group {
  padding-top: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}

.page-faq .faq-group__head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  letter-spacing: .01em;
}

.page-faq .faq-group__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-group__lead {
  margin: 8px 0 14px;
  max-width: 66ch;
  color: var(--sage);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--border);
}

.page-faq .faq-item {
  border-bottom: var(--border);
}

.page-faq .faq-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: baseline;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
  transition: padding-left .15s ease;
}

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

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mint);
}

.page-faq .faq-item__q {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq .faq-item__sign {
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-item__sign::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item__sign::before {
  content: "–";
}

.page-faq .faq-item[open] > summary {
  padding-left: 12px;
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--cyan);
}

.page-faq .faq-item__body {
  margin: 0 0 18px;
  padding: 2px 0 0 14px;
  border-left: 2px solid var(--cyan);
  color: var(--sage);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
}

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

.page-faq .faq-item__body a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item__body a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-steps {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 32px;
  counter-increment: faqstep;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .2em;
  padding-left: 6px;
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cyan);
}

/* ---------- 中部赛事日氛围带 ---------- */
.page-faq .faq-band {
  border-top: var(--border);
  border-bottom: var(--border);
  background: var(--ink-900);
}

.page-faq .faq-band__inner {
  display: grid;
  gap: 0;
}

.page-faq .faq-band__media {
  margin: 0;
  overflow: hidden;
  border: 2px solid var(--ink-700);
  background: var(--ink-700);
}

.page-faq .faq-band__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-band__copy {
  padding-block: clamp(26px, 4.4vw, 46px);
}

.page-faq .faq-band__copy p {
  margin: 14px 0 0;
  max-width: 60ch;
  color: var(--sage);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-band__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: var(--border);
  list-style: none;
}

.page-faq .faq-band__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-band__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-faq .faq-band__lab {
  color: var(--sage);
  font-size: 12px;
  line-height: 1.5;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  padding-block: var(--faq-pad);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-contact__copy > p {
  margin: 14px 0 0;
  max-width: 62ch;
  color: var(--sage);
  font-size: 15px;
  line-height: 1.85;
}

.page-faq .faq-contact__copy a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__copy a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
  color: var(--sage);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-faq .faq-contact__panel {
  padding: clamp(18px, 3vw, 26px);
  border: 2px solid var(--ink-900);
  background: var(--ink-700);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact__row {
  padding: 14px 0;
  border-bottom: var(--border);
}

.page-faq .faq-contact__row:first-child {
  padding-top: 0;
}

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

.page-faq .faq-contact__label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-faq .faq-contact__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--mist);
  word-break: break-all;
}

.page-faq .faq-contact__value a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__value a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-contact__note {
  margin: 8px 0 0;
  color: var(--sage);
  font-size: 13px;
  line-height: 1.75;
}

.page-faq .faq-contact__note a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-contact__note a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-index__item {
    grid-template-columns: 40px minmax(0, 1fr) auto;
    align-items: start;
  }

  .page-faq .faq-index__go {
    grid-column: 3;
    grid-row: 1;
    margin-top: 4px;
    align-self: center;
  }

  .page-faq .faq-filter {
    padding-bottom: 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .85fr);
    align-items: center;
  }

  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-band__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-faq .faq-band__copy {
    padding-left: clamp(24px, 3vw, 46px);
    padding-right: 4px;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-board__layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }
}