.page-faq {
  --faq-band: var(--neon);
  --faq-gap: clamp(20px, 3vw, 34px);
  --faq-title-size: clamp(46px, 12vw, 120px);
}

/* ---------------- 首屏 ---------------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(46px, 6vw, 74px);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(43, 245, 160, 0.12), transparent 58%),
    radial-gradient(90% 80% at 92% 10%, rgba(255, 91, 58, 0.08), transparent 62%),
    linear-gradient(180deg, var(--night) 0%, var(--abyss) 82%);
  overflow: hidden;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 14px;
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--faq-title-size);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--sheen);
  text-shadow: 0 0 44px rgba(43, 245, 160, 0.16);
}

.page-faq .faq-hero__lead {
  max-width: 60ch;
  margin: clamp(18px, 3vw, 28px) 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-faq .faq-hero__cut {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 44px;
  background: linear-gradient(90deg, transparent 4%, rgba(43, 245, 160, 0.35) 46%, rgba(255, 91, 58, 0.28) 78%, transparent);
  clip-path: polygon(0 100%, 100% 24%, 100% 100%);
  pointer-events: none;
  z-index: 1;
}

/* ---------------- 分类胶囊 ---------------- */

.page-faq .faq-ribbon {
  display: flex;
  gap: 8px;
  margin-top: clamp(22px, 3.4vw, 34px);
  padding: 4px 2px 10px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}

.page-faq .faq-ribbon::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-ribbon .chip {
  flex: 0 0 auto;
  white-space: nowrap;
  text-decoration: none;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: background 220ms var(--ease), color 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .faq-ribbon .chip:hover,
.page-faq .faq-ribbon .chip:focus-visible {
  background: var(--glass-hi);
  color: var(--sheen);
  border-color: rgba(43, 245, 160, 0.5);
}

/* ---------------- 主体骨架 ---------------- */

.page-faq .faq-body {
  padding-top: clamp(32px, 5vw, 60px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

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

/* ---------------- 侧栏 ---------------- */

.page-faq .faq-side {
  display: grid;
  gap: 18px;
}

.page-faq .faq-jump__title {
  margin: 0 0 10px;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice-dim);
}

.page-faq .faq-jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-jump__list a {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: center;
  min-height: 44px;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 10px 10px 0;
  color: var(--ice-mid);
  font-size: 14px;
  text-decoration: none;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-jump__list a:hover,
.page-faq .faq-jump__list a:focus-visible {
  background: var(--glass);
  border-left-color: var(--neon);
  color: var(--ice);
}

.page-faq .faq-jump__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ice-dim);
}

.page-faq .faq-jump__list a:hover .faq-jump__num,
.page-faq .faq-jump__list a:focus-visible .faq-jump__num {
  color: var(--neon);
}

.page-faq .faq-links {
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
}

.page-faq .faq-links__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice-mid);
}

.page-faq .faq-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-links__list a {
  display: block;
  padding: 9px 0;
  min-height: 40px;
  color: var(--ice);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  border-bottom: 1px solid rgba(203, 216, 230, 0.08);
  transition: color 200ms var(--ease);
}

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

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

/* ---------------- 问题分组 ---------------- */

.page-faq .faq-group {
  position: relative;
  padding-bottom: clamp(34px, 5vw, 56px);
  margin-bottom: clamp(34px, 5vw, 56px);
  scroll-margin-top: 104px;
  border-bottom: 1px solid rgba(203, 216, 230, 0.1);
}

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

.page-faq .faq-group[data-kind="01"] { --faq-band: var(--neon); }
.page-faq .faq-group[data-kind="02"] { --faq-band: var(--flare); }
.page-faq .faq-group[data-kind="03"] { --faq-band: var(--ice); }
.page-faq .faq-group[data-kind="04"] { --faq-band: var(--neon); }
.page-faq .faq-group[data-kind="05"] { --faq-band: var(--ice-mid); }
.page-faq .faq-group[data-kind="06"] { --faq-band: var(--flare); }
.page-faq .faq-group[data-kind="07"] { --faq-band: var(--neon); }

.page-faq .faq-group__head {
  position: relative;
  padding-left: 18px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-group__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: 2px;
  background: var(--faq-band);
  box-shadow: 0 0 18px color-mix(in srgb, var(--faq-band) 45%, transparent);
}

.page-faq .faq-group__kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ice-mid);
}

.page-faq .faq-group__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--ice);
}

/* ---------------- 编号步骤 ---------------- */

.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 5px;
  padding: 16px 18px;
  border-radius: var(--radius);
  background: var(--crevasse);
  border: 1px solid var(--glass-line);
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}

.page-faq .faq-step:hover {
  border-color: rgba(43, 245, 160, 0.4);
  transform: translateX(3px);
}

.page-faq .faq-step__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-faq .faq-step__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ice);
}

.page-faq .faq-step__body {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ice-mid);
}

/* ---------------- 影像 ---------------- */

.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.page-faq .faq-figure .figure__caption {
  margin: 12px 2px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--ice-mid);
}

/* ---------------- 展开条目 ---------------- */

.page-faq .faq-item {
  margin-bottom: 10px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  background: var(--crevasse);
  overflow: hidden;
  transition: border-color 240ms var(--ease);
}

.page-faq .faq-item[data-open="true"] {
  border-color: var(--faq-band);
}

.page-faq .faq-item .faq-toggle {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  min-height: 56px;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--ice);
  font-family: inherit;
  transition: background 220ms var(--ease);
}

.page-faq .faq-item .faq-toggle:hover {
  background: rgba(255, 255, 255, 0.04);
}

.page-faq .faq-q {
  flex: 1 1 auto;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ice);
}

.page-faq .faq-item[data-open="true"] .faq-q {
  color: var(--sheen);
}

.page-faq .faq-chev {
  flex: 0 0 auto;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: 50%;
  border: 1px solid var(--glass-line);
  color: var(--ice-mid);
  transition: border-color 240ms var(--ease), color 240ms var(--ease);
}

.page-faq .faq-chev::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-3px) rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-faq .faq-item[data-open="true"] .faq-chev {
  border-color: var(--faq-band);
  color: var(--faq-band);
}

.page-faq .faq-item[data-open="true"] .faq-chev::before {
  transform: translateY(1px) rotate(-135deg);
}

.page-faq .faq-item .disclosure__inner {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ice-mid);
}

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

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

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

.page-faq .faq-bullets li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--faq-band);
  transform: rotate(45deg);
}

.page-faq .faq-bullets strong {
  color: var(--ice);
  font-weight: 600;
}

/* ---------------- 尾部引导 ---------------- */

.page-faq .faq-tail {
  margin-top: clamp(10px, 2vw, 18px);
  padding: clamp(22px, 3.4vw, 34px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-line);
}

.page-faq .faq-tail__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.35;
  color: var(--sheen);
}

.page-faq .faq-tail__text {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ice-mid);
}

.page-faq .faq-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-tail__actions .btn {
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ---------------- 中屏以上 ---------------- */

@media (min-width: 760px) {
  .page-faq .faq-step {
    grid-template-columns: 62px minmax(0, 1fr);
    padding: 20px 22px;
  }

  .page-faq .faq-item .faq-toggle {
    padding: 20px 24px;
  }

  .page-faq .faq-item .disclosure__inner {
    padding: 0 24px 22px;
    font-size: 15px;
  }

  .page-faq .faq-q {
    font-size: 16px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-shell {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: clamp(34px, 4.5vw, 62px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-shell {
    grid-template-columns: 268px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-chev,
  .page-faq .faq-chev::before,
  .page-faq .faq-item,
  .page-faq .faq-ribbon .chip {
    transition: none;
  }

  .page-faq .faq-step:hover {
    transform: none;
  }
}