.page-faq {
  --faq-cut: 26px;
  --faq-line: rgba(25, 245, 198, 0.16);
  --faq-line-soft: rgba(143, 168, 161, 0.26);
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: calc(var(--header-h) + 34px) 0 clamp(38px, 6.5vw, 72px);
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(120% 96% at 86% -8%, rgba(25, 245, 198, 0.15), transparent 60%),
    radial-gradient(80% 70% at -6% 106%, rgba(11, 74, 60, 0.72), transparent 68%),
    var(--ink);
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--grey);
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-faq .faq-crumb a {
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-crumb a:hover,
.page-faq .faq-crumb a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4.5vw, 52px);
}

.page-faq .faq-eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.6vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-faq .faq-lede {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: var(--grey);
}

.page-faq .faq-hero-card {
  border: 1px solid var(--faq-line);
  background: linear-gradient(158deg, rgba(7, 51, 42, 0.96), rgba(4, 33, 28, 0.72));
  padding: 22px 22px 14px;
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

.page-faq .faq-hero-card-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

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

.page-faq .faq-hero-step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px dashed rgba(25, 245, 198, 0.22);
  font-size: 15px;
  line-height: 1.62;
}

.page-faq .faq-hero-step:first-child {
  border-top: 0;
}

.page-faq .faq-num {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--lime);
  flex: none;
}

/* ---------- 主体栅格 ---------- */

.page-faq .faq-layout {
  padding: clamp(34px, 6vw, 72px) 0 clamp(54px, 8vw, 96px);
  background:
    linear-gradient(180deg, rgba(7, 51, 42, 0.42), rgba(4, 33, 28, 0) 34%),
    var(--ink);
}

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-grid > * {
  min-width: 0;
}

/* ---------- 左侧分类刻度 ---------- */

.page-faq .faq-rail {
  align-self: start;
  min-width: 0;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--neon);
}

.page-faq .faq-rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-rail-link {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  padding: 9px 14px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--grey);
  text-decoration: none;
  border: 1px solid var(--faq-line-soft);
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-rail-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  color: var(--bone);
  border-color: var(--neon);
  background: rgba(25, 245, 198, 0.07);
}

/* ---------- 问答分组 ---------- */

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

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
  margin-bottom: clamp(36px, 5.5vw, 62px);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-group--panel {
  padding: clamp(22px, 3.2vw, 34px);
  background: linear-gradient(170deg, rgba(11, 74, 60, 0.62), rgba(7, 51, 42, 0.22));
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - var(--faq-cut)) 0, 100% var(--faq-cut), 100% 100%, 0 100%);
}

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

.page-faq .faq-group-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--neon);
  padding-bottom: 6px;
  border-bottom: 2px solid var(--neon);
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 27px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-faq .faq-group-note {
  margin: 12px 0 14px;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 折叠问答 ---------- */

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

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 17px 2px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15.5px, 1.9vw, 17.5px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--bone);
  transition: color 0.18s ease;
}

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

.page-faq .faq-item > summary::marker {
  content: "";
}

.page-faq .faq-item > summary:hover {
  color: var(--neon);
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--neon);
  transform: translateY(-1px);
}

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

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item > .faq-answer {
  margin: 0 0 20px 46px;
  padding-left: 18px;
  border-left: 2px solid rgba(25, 245, 198, 0.3);
  max-width: 44em;
  font-size: 15px;
  line-height: 1.84;
  color: var(--grey);
}

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

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

.page-faq .faq-answer a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(25, 245, 198, 0.5);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  border-bottom-color: var(--neon);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 4px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps > li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
  border-left: 2px solid rgba(201, 255, 94, 0.5);
  padding-left: 6px;
}

/* ---------- 插图 ---------- */

.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--grey);
}

/* ---------- 横向提示带 ---------- */

.page-faq .faq-band {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: clamp(26px, 4vw, 44px) 0;
  padding: 14px 18px;
  border-left: 3px solid var(--amber);
  border-top: 1px solid rgba(255, 122, 47, 0.3);
  border-bottom: 1px solid rgba(255, 122, 47, 0.3);
  background: linear-gradient(90deg, rgba(255, 122, 47, 0.12), rgba(255, 122, 47, 0) 72%);
}

.page-faq .faq-band-label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-faq .faq-band p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--bone);
}

/* ---------- 联系分组（反相） ---------- */

.page-faq .faq-group--contact {
  padding: clamp(22px, 3.2vw, 36px);
  background: var(--paper);
  color: #17251F;
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-faq .faq-group--contact .faq-group-kicker {
  color: #0B4A3C;
  border-bottom-color: #0B4A3C;
}

.page-faq .faq-group--contact .faq-group-title {
  color: #17251F;
}

.page-faq .faq-group--contact .faq-group-note {
  color: #4C6057;
}

.page-faq .faq-group--contact .faq-item,
.page-faq .faq-group--contact .faq-item:last-of-type {
  border-color: rgba(11, 74, 60, 0.18);
}

.page-faq .faq-group--contact .faq-item > summary {
  color: #17251F;
}

.page-faq .faq-group--contact .faq-item > summary:hover {
  color: #0B4A3C;
}

.page-faq .faq-group--contact .faq-item > summary::after {
  color: #0B4A3C;
}

.page-faq .faq-group--contact .faq-num {
  color: #0B4A3C;
}

.page-faq .faq-group--contact .faq-item > .faq-answer {
  color: #41544C;
  border-left-color: rgba(11, 74, 60, 0.28);
}

.page-faq .faq-group--contact .faq-step-num {
  color: #0B4A3C;
  border-left-color: rgba(11, 74, 60, 0.4);
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact-list > li {
  display: grid;
  grid-template-columns: minmax(72px, 96px) minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-top: 1px dashed rgba(11, 74, 60, 0.24);
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-contact-k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #0B4A3C;
}

.page-faq .faq-contact-v {
  color: #24352D;
  word-break: break-word;
}

/* ---------- 结尾行动区 ---------- */

.page-faq .faq-cta {
  margin-top: clamp(32px, 4.5vw, 56px);
  padding: clamp(24px, 3.4vw, 42px);
  display: grid;
  gap: 20px;
  background: linear-gradient(135deg, rgba(7, 51, 42, 0.96), rgba(11, 74, 60, 0.42));
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
}

.page-faq .faq-cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 26px);
  line-height: 1.3;
  color: var(--bone);
}

.page-faq .faq-cta-text {
  margin: 10px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-faq .faq-band {
    flex-direction: row;
    align-items: center;
    gap: 18px;
    padding: 16px 22px;
  }

  .page-faq .faq-band-label {
    min-width: 72px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    align-items: end;
  }

  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-faq .faq-cta-actions {
    justify-content: flex-end;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-grid {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 60px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding-right: 8px;
  }

  .page-faq .faq-rail-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-rail-link {
    white-space: normal;
    border: 0;
    border-left: 2px solid var(--faq-line-soft);
    padding: 9px 6px 9px 14px;
  }

  .page-faq .faq-rail-link:hover,
  .page-faq .faq-rail-link:focus-visible {
    border-left-color: var(--neon);
    background: rgba(25, 245, 198, 0.06);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-crumb a,
  .page-faq .faq-rail-link,
  .page-faq .faq-item > summary {
    transition: none;
  }
}