.page-faq {
  --faq-line: rgba(30, 42, 74, 0.62);
  --faq-soft: rgba(154, 166, 196, 0.9);
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
}

/* ===== 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 64px) clamp(36px, 6vw, 80px);
  background:
    radial-gradient(1080px 520px at 84% -14%, rgba(123, 77, 255, 0.3), transparent 62%),
    radial-gradient(720px 420px at 4% 8%, rgba(43, 232, 224, 0.13), transparent 60%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--faq-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-line) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.3;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
}

.page-faq .faq-hero-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 6.4vw, 4.5rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
  background: linear-gradient(104deg, #ffffff 34%, var(--cyan) 82%, var(--violet) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-faq .faq-hero-lead {
  margin-top: clamp(16px, 2.2vw, 26px);
  max-width: 34em;
  color: var(--muted);
  font-size: clamp(1rem, 0.35vw + 0.92rem, 1.1rem);
  line-height: 1.78;
}

.page-faq .faq-hero-note {
  margin-top: 20px;
  padding-left: 14px;
  border-left: 2px solid transparent;
  border-image: linear-gradient(to bottom, var(--violet), var(--cyan)) 1;
  color: var(--faq-soft);
  font-size: 14px;
  line-height: 1.7;
  max-width: 32em;
}

.page-faq .faq-hero-figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel-deep);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 9;
  object-fit: cover;
}

.page-faq .faq-hero-figure .media-caption {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* ===== 分区索引 ===== */
.page-faq .faq-jump {
  border-bottom: 1px solid var(--line);
  background: var(--panel-deep);
}

.page-faq .faq-jump-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-faq .faq-jump-label {
  flex: none;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

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

.page-faq .faq-jump-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-jump-list a .num {
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-jump-list a:hover,
.page-faq .faq-jump-list a:focus-visible {
  border-color: var(--cyan);
  color: var(--ink);
  background: var(--cyan-wash);
}

/* ===== 分区通用 ===== */
.page-faq .faq-band {
  position: relative;
  padding-block: clamp(44px, 7vw, 96px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-band--top {
  background: linear-gradient(180deg, var(--panel-deep), rgba(10, 16, 36, 0.35));
}

.page-faq .faq-band--grid::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--faq-line) 1px, transparent 1px);
  background-size: 148px 100%;
  opacity: 0.28;
  pointer-events: none;
}

.page-faq .faq-band-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-band-head {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-band-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(to bottom, var(--violet), var(--cyan));
}

.page-faq .faq-band-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-band-note {
  margin: 12px 0 0;
  max-width: 30em;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

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

/* ===== 问答条目 ===== */
.page-faq .faq-qa,
.page-faq .faq-top-grid {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  align-items: start;
}

.page-faq .faq-qa > li {
  display: block;
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(43, 232, 224, 0.5);
}

.page-faq .faq-item[open] {
  border-color: rgba(123, 77, 255, 0.62);
  box-shadow: 0 16px 34px -22px rgba(123, 77, 255, 0.95);
}

.page-faq .faq-summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

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

.page-faq .faq-q-num {
  flex: none;
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  font-size: clamp(0.96rem, 0.32vw + 0.9rem, 1.04rem);
  font-weight: 600;
  line-height: 1.58;
  color: var(--ink);
}

.page-faq .faq-mark {
  position: relative;
  flex: none;
  align-self: center;
  width: 14px;
  height: 14px;
  margin-left: 4px;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-mark::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item[open] .faq-mark::before {
  background: var(--violet);
}

.page-faq .faq-answer {
  padding: 0 16px 16px 39px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.76;
}

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

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 224, 0.45);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

/* ===== 章节配图 ===== */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel-deep);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

.page-faq .faq-figure .media-caption {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
}

/* ===== 联系面板 ===== */
.page-faq .faq-band--support {
  background:
    radial-gradient(700px 320px at 90% 0%, rgba(123, 77, 255, 0.22), transparent 66%),
    var(--void);
  border-bottom: none;
}

.page-faq .faq-support-panel {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 3.6vw, 46px);
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-support-main p {
  margin: 14px 0 0;
  max-width: 32em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.76;
}

.page-faq .faq-support-main a:not(.btn) {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 224, 0.45);
}

.page-faq .faq-support-main a:not(.btn):hover,
.page-faq .faq-support-main a:not(.btn):focus-visible {
  color: var(--ink);
  border-color: var(--ink);
}

.page-faq .faq-support-main .btn {
  margin-top: 22px;
}

.page-faq .faq-support-contact {
  padding: 18px;
  border: 1px solid var(--line-soft);
  background: var(--panel-deep);
}

.page-faq .faq-contact-label {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-contact-time {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

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

.page-faq .faq-contact-lines li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-contact-lines span {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-faq .faq-contact-value {
  font-weight: 500;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ===== 断点 ===== */
@media (min-width: 760px) {
  .page-faq .faq-top-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .faq-answer {
    padding-left: 42px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    gap: clamp(40px, 5vw, 84px);
  }

  .page-faq .faq-band--split .faq-band-inner {
    grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr);
    gap: clamp(32px, 5vw, 80px);
    align-items: start;
  }

  .page-faq .faq-band-head {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-support-panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }
}

@media (max-width: 420px) {
  .page-faq .faq-summary {
    gap: 10px;
    padding: 14px 13px;
  }

  .page-faq .faq-answer {
    padding: 0 13px 14px 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-mark::before,
  .page-faq .faq-mark::after,
  .page-faq .faq-jump-list a,
  .page-faq .faq-answer a {
    transition: none;
  }
}