.page-faq {
  --faq-gap: clamp(16px, 3vw, 30px);
  --faq-pad: clamp(16px, 2.6vw, 28px);
  --faq-soft: rgba(242, 247, 244, 0.82);
  --faq-line-soft: rgba(42, 59, 62, 0.9);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 3.4vw, 34px) 0 clamp(30px, 5vw, 56px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -25%;
  width: 66vmax;
  height: 66vmax;
  background: radial-gradient(circle at center, rgba(198, 255, 61, 0.13), transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero-lead .display {
  margin: 10px 0 0;
}

.page-faq .faq-hero-lead .lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  color: var(--faq-soft);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-board {
  position: relative;
  display: grid;
  gap: 16px;
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(14, 44, 36, 0.94), rgba(7, 26, 22, 0.72));
  overflow: hidden;
}

.page-faq .faq-board::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), transparent);
}

.page-faq .board-row {
  display: grid;
  gap: 4px;
}

.page-faq .board-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .board-val {
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.4vw, 32px);
  line-height: 1.1;
  color: var(--lime);
  letter-spacing: 0.04em;
}

.page-faq .board-desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-soft);
}

/* ---------- 区块通用 ---------- */

.page-faq .faq-section {
  padding: clamp(34px, 5.4vw, 70px) 0;
}

.page-faq .faq-section + .faq-section {
  border-top: 1px solid var(--faq-line-soft);
}

/* ---------- 三步引导 ---------- */

.page-faq .step-track {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .step {
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-carbon);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-faq .step summary {
  display: grid;
  gap: 6px;
  list-style: none;
  cursor: pointer;
}

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

.page-faq .step summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 6px;
}

.page-faq .step-num {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-faq .step-title {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.4vw, 22px);
  line-height: 1.35;
  color: var(--white);
  transform: skew(-4deg);
  transform-origin: left center;
}

.page-faq .step-hint {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .step[open] {
  border-color: rgba(198, 255, 61, 0.42);
}

.page-faq .step--key {
  border-color: var(--alert);
  background: linear-gradient(155deg, rgba(255, 59, 78, 0.16), rgba(14, 44, 36, 0.96) 58%);
  box-shadow: 0 0 0 1px rgba(255, 59, 78, 0.2), 0 30px 62px -40px rgba(255, 59, 78, 0.95);
}

.page-faq .step--key .step-num {
  color: var(--alert);
}

.page-faq .step-body {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.page-faq .step-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .step-body strong {
  color: var(--lime);
  font-weight: 700;
}

.page-faq .step-figure {
  margin: clamp(22px, 3.6vw, 36px) 0 0;
}

.page-faq .step-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

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

/* ---------- 自查清单 ---------- */

.page-faq .check-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .check-group {
  display: grid;
  align-content: start;
  padding: 16px var(--faq-pad) 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-carbon);
}

.page-faq .check-group-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 10px;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--line);
}

.page-faq .check-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .check-group-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .check-item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px dashed var(--faq-line-soft);
  cursor: pointer;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(242, 247, 244, 0.86);
  transition: color 0.2s ease;
}

.page-faq .check-item:last-of-type {
  border-bottom: 0;
}

.page-faq .check-item input {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(7, 26, 22, 0.9);
  position: relative;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .check-item input:checked {
  border-color: var(--lime);
  background: var(--lime-veil);
}

.page-faq .check-item input:checked::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 1px;
  background: var(--lime);
}

.page-faq .check-item input:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-faq .check-item:has(input:checked) {
  color: var(--mist);
}

.page-faq .check-done {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid rgba(198, 255, 61, 0.24);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--lime);
  opacity: 0.28;
  transition: opacity 0.28s ease;
}

.page-faq .check-group:not(:has(input:not(:checked))) .check-done {
  opacity: 1;
}

/* ---------- 刷新机制 ---------- */

.page-faq .refresh-layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .refresh-text {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-soft);
  max-width: 40em;
}

.page-faq .refresh-cycle {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 4px;
  margin: 0 0 18px;
}

.page-faq .refresh-cycle span {
  padding: 9px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  border-top: 2px solid var(--line);
  background: linear-gradient(180deg, rgba(198, 255, 61, 0.1), transparent);
}

.page-faq .refresh-cycle span:last-child {
  color: var(--orange);
  border-top-color: var(--orange);
  background: linear-gradient(180deg, rgba(255, 122, 24, 0.16), transparent);
}

.page-faq .refresh-faq {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .refresh-faq li {
  padding: 16px var(--faq-pad);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  border-radius: var(--radius);
  background: var(--bg-pitch);
}

.page-faq .refresh-q {
  display: block;
  margin-bottom: 6px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.6;
}

.page-faq .refresh-a {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-soft);
}

/* ---------- 资料库 / 赛程 ---------- */

.page-faq .library-grid {
  display: grid;
  gap: 14px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .library-card {
  position: relative;
  padding: calc(var(--faq-pad) + 6px) var(--faq-pad) var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(14, 44, 36, 0.9), rgba(7, 26, 22, 0.55));
  overflow: hidden;
}

.page-faq .library-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent);
}

.page-faq .library-idx {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-faq .library-title {
  margin: 8px 0 10px;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 800;
  color: var(--white);
  line-height: 1.4;
}

.page-faq .library-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .library-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 访问与设备 ---------- */

.page-faq .access-layout {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-faq .access-figure {
  margin: 0;
}

.page-faq .access-text {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-soft);
}

.page-faq .access-list {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .access-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-carbon);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 247, 244, 0.86);
}

.page-faq .access-key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--alert);
  padding-top: 2px;
}

.page-faq .access-note {
  margin: 0 0 20px;
  padding-left: 14px;
  border-left: 2px solid var(--alert);
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 问答 ---------- */

.page-faq .compass-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(16px, 2.6vw, 24px);
}

.page-faq .compass-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(14, 44, 36, 0.75);
  color: var(--white);
  font-size: 13.5px;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.page-faq .compass-tag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lime);
  flex: none;
}

.page-faq .compass-tag:hover,
.page-faq .compass-tag:focus-visible {
  border-color: var(--lime);
  background: var(--lime-veil);
  transform: translateY(-2px);
}

.page-faq .qa-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-carbon);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.page-faq .qa[open] {
  border-color: rgba(198, 255, 61, 0.4);
}

.page-faq .qa summary {
  position: relative;
  padding: 15px 44px 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--white);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -2px;
}

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lime);
}

.page-faq .qa[open] summary::after {
  content: "−";
}

.page-faq .qa-body {
  padding: 0 16px 16px;
}

.page-faq .qa-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-soft);
}

/* ---------- 联系我们 ---------- */

.page-faq .reach {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid rgba(255, 122, 24, 0.45);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(255, 122, 24, 0.14), rgba(7, 26, 22, 0.92) 62%);
}

.page-faq .reach-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.25;
  color: var(--white);
  transform: skew(-4deg);
  transform-origin: left center;
}

.page-faq .reach-text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-soft);
  max-width: 36em;
}

.page-faq .reach-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .reach-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .reach-item {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(255, 122, 24, 0.28);
}

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

.page-faq .reach-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .reach-val {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .qa-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(280px, 0.85fr);
    align-items: end;
  }

  .page-faq .step-track {
    grid-template-columns: minmax(0, 1fr) minmax(0, 2.1fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .refresh-layout {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-faq .access-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-faq .reach {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .library-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step,
  .page-faq .check-item,
  .page-faq .check-done,
  .page-faq .compass-tag,
  .page-faq .qa {
    transition: none;
  }

  .page-faq .compass-tag:hover,
  .page-faq .compass-tag:focus-visible {
    transform: none;
  }
}