.page-faq {
  position: relative;
  overflow-x: clip;
  background:
    radial-gradient(900px 460px at 6% -4%, rgba(139, 92, 246, 0.16), transparent 64%),
    radial-gradient(760px 380px at 98% 6%, rgba(34, 211, 238, 0.10), transparent 60%);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-top {
  position: relative;
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(30px, 5vw, 58px);
}

.page-faq .faq-top::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -12%;
  width: min(620px, 78vw);
  height: 420px;
  background: linear-gradient(140deg, rgba(139, 92, 246, 0.30), rgba(34, 211, 238, 0.10) 58%, transparent 82%);
  clip-path: polygon(12% 0, 100% 14%, 88% 100%, 0 84%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-top .rail {
  position: relative;
  z-index: 1;
}

.page-faq .crumb {
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 3.6vw, 46px);
  align-items: start;
}

.page-faq .faq-hero__title {
  margin: 10px 0 0;
  font-size: clamp(2.15rem, 7.2vw, 4.3rem);
  line-height: 1.0;
  letter-spacing: -0.025em;
  font-weight: 900;
  color: var(--text);
}

.page-faq .faq-hero__title br {
  display: none;
}

.page-faq .faq-hero__text .lede {
  margin: 16px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .faq-hero__side {
  display: grid;
  gap: 14px;
}

.page-faq .faq-hero__art {
  margin: 0;
  filter: drop-shadow(0 18px 38px rgba(139, 92, 246, 0.35));
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 6%, 100% 0, 100% 94%, 0 100%);
  object-fit: cover;
}

.page-faq .faq-hero__trace {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-hero__trace li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--muted);
  background: linear-gradient(100deg, rgba(23, 18, 58, 0.9), rgba(14, 31, 42, 0.55));
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}

/* ---------- 列表区 ---------- */
.page-faq .faq-main {
  position: relative;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(28px, 4vw, 48px);
}

.page-faq .faq-toolbar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.4vw, 28px);
  margin-bottom: clamp(24px, 3.6vw, 40px);
  background: linear-gradient(112deg, rgba(23, 18, 58, 0.96), rgba(14, 31, 42, 0.7));
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 0 100%);
}

.page-faq .faq-toolbar::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--cyan), transparent);
}

.page-faq .faq-toolbar__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

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

.page-faq .faq-filters .filter-btn {
  appearance: none;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 8px 15px;
  color: var(--muted);
  background: rgba(11, 10, 20, 0.6);
  border: 1px solid var(--line);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.page-faq .faq-filters .filter-btn:hover,
.page-faq .faq-filters .filter-btn:focus-visible {
  color: var(--text);
  border-color: var(--neon);
}

.page-faq .faq-filters .filter-btn.is-active,
.page-faq .faq-filters .filter-btn[aria-pressed="true"] {
  color: var(--ink);
  background: linear-gradient(118deg, var(--gold), #ffd884);
  border-color: var(--gold);
  font-weight: 700;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(32px, 5vw, 54px);
  scroll-margin-top: 90px;
}

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

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.2rem, 2.6vw, 1.7rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--text);
}

.page-faq .faq-group__intro {
  flex: 1 1 100%;
  margin: 4px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--dim);
}

/* ---------- 问答条目 ---------- */
.page-faq .qa {
  position: relative;
  margin-bottom: 10px;
  background: linear-gradient(118deg, rgba(23, 18, 58, 0.92), rgba(23, 18, 58, 0.58));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: border-color 0.24s ease, background 0.24s ease;
}

.page-faq .qa:hover {
  border-color: rgba(139, 92, 246, 0.55);
}

.page-faq .qa[open] {
  border-color: rgba(139, 92, 246, 0.72);
  background: linear-gradient(118deg, rgba(26, 20, 62, 0.98), rgba(14, 31, 42, 0.82));
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(14px, 1.9vw, 18px) clamp(14px, 2vw, 22px);
  cursor: pointer;
  list-style: none;
  color: var(--text);
  font-size: clamp(15px, 1.7vw, 17px);
  font-weight: 600;
  line-height: 1.55;
}

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

.page-faq .qa__q::marker {
  content: "";
}

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

.page-faq .qa__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
  transition: color 0.22s ease;
}

.page-faq .qa[open] .qa__no {
  color: var(--gold);
}

.page-faq .qa__plus {
  flex: 0 0 auto;
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 5px;
  margin-left: 4px;
}

.page-faq .qa__plus::before,
.page-faq .qa__plus::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform 0.24s ease, background 0.24s ease;
}

.page-faq .qa__plus::before {
  left: 0;
  right: 0;
  top: 6px;
  height: 2px;
}

.page-faq .qa__plus::after {
  top: 0;
  bottom: 0;
  left: 6px;
  width: 2px;
}

.page-faq .qa[open] .qa__plus::before {
  background: var(--gold);
}

.page-faq .qa[open] .qa__plus::after {
  transform: scaleY(0);
}

.page-faq .qa__body {
  margin: 0 clamp(14px, 2vw, 22px) clamp(16px, 2.2vw, 22px);
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .qa__direct {
  margin: 0 0 14px;
  padding-left: 13px;
  border-left: 2px solid var(--cyan);
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .qa__steps {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  counter-reset: faqstep;
  display: grid;
  gap: 7px;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
  counter-increment: faqstep;
}

.page-faq .qa__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--neon);
}

.page-faq .qa__next {
  margin: 0;
  padding-top: 11px;
  border-top: 1px dashed rgba(44, 38, 87, 0.9);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--dim);
}

.page-faq .qa__next a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 238, 0.45);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .qa__next a:hover,
.page-faq .qa__next a:focus-visible {
  color: var(--text);
  border-color: var(--gold);
}

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  position: relative;
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(34px, 5vw, 62px) 0 clamp(40px, 6vw, 76px);
  background: linear-gradient(176deg, rgba(14, 31, 42, 0.94), rgba(11, 10, 20, 0.5) 72%);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rose), var(--gold), transparent);
  transform: rotate(-0.7deg);
  opacity: 0.85;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
  align-items: center;
}

.page-faq .faq-help__title {
  margin: 10px 0 0;
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.12;
  color: var(--text);
}

.page-faq .faq-help__lead {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-help__places {
  display: grid;
  gap: 10px;
  margin: 22px 0 18px;
  max-width: 480px;
}

.page-faq .faq-place {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 13px 16px;
  background: rgba(11, 10, 20, 0.62);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 13px 100%, 0 calc(100% - 13px));
}

.page-faq .faq-place__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--dim);
}

.page-faq .faq-place__value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

.page-faq .faq-copy {
  flex: 0 0 auto;
  appearance: none;
  font-family: inherit;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 6px 13px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(34, 211, 238, 0.5);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-copy:hover,
.page-faq .faq-copy:focus-visible {
  background: rgba(34, 211, 238, 0.16);
  color: var(--text);
  border-color: var(--cyan);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--gold);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-faq .faq-help__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  max-width: 54ch;
  font-size: 13px;
  line-height: 1.78;
  color: var(--dim);
}

.page-faq .faq-help__art {
  margin: 0;
  filter: drop-shadow(0 20px 42px rgba(34, 211, 238, 0.22));
}

.page-faq .faq-help__art img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 0, 100% 7%, 100% 100%, 0 93%);
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-faq .faq-hero__title br {
    display: inline;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  }

  .page-faq .qa__q {
    padding-right: 26px;
  }
}

@media (max-width: 599px) {
  .page-faq .faq-hero__title {
    font-size: clamp(1.9rem, 9vw, 2.4rem);
  }

  .page-faq .faq-toolbar {
    clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  }

  .page-faq .faq-toolbar__label {
    flex: 1 1 100%;
  }

  .page-faq .faq-filters .filter-btn {
    flex: 0 1 auto;
    padding: 7px 12px;
    font-size: 12.5px;
  }

  .page-faq .qa__steps li {
    padding-left: 26px;
  }

  .page-faq .qa__direct {
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__plus::before,
  .page-faq .qa__plus::after,
  .page-faq .qa__no,
  .page-faq .faq-filters .filter-btn,
  .page-faq .faq-copy,
  .page-faq .qa__next a {
    transition: none;
  }

  .page-faq .faq-help::before,
  .page-faq .faq-top::before {
    transform: none;
  }
}