.page-faq {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
}

/* ===== Hero 首屏 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--c-deep-2), var(--c-deep) 68%);
  color: #fff;
  padding: 24px 0 56px;
}
.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -52px;
  bottom: -52px;
  width: 170px;
  height: 170px;
  background: var(--c-orange);
  opacity: 0.24;
  transform: rotate(18deg);
  border-radius: 28px;
  pointer-events: none;
}
.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}
.page-faq .faq-hero .motion-stripe {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: 62%;
  height: 6px;
  background: repeating-linear-gradient(135deg, var(--c-neon) 0 8px, transparent 8px 16px);
}
.page-faq .faq-hero__crumb {
  margin-bottom: 20px;
}
.page-faq .faq-hero__main {
  display: grid;
  gap: 24px;
}
.page-faq .faq-hero__copy .section-label {
  color: var(--c-neon);
}
.page-faq .faq-hero__copy h1 {
  margin: 10px 0 16px;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: clamp(32px, 8vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}
.page-faq .faq-hero__copy > p {
  margin: 0;
  max-width: 48ch;
  color: rgba(255,255,255,0.72);
  font-size: 15px;
  line-height: 1.65;
}
.page-faq .faq-hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.page-faq .faq-hero__pills .tag {
  text-decoration: none;
}
.page-faq .faq-hero__stat {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.page-faq .faq-hero__stat .stat-card {
  position: relative;
  overflow: hidden;
  background: rgba(255,255,255,0.075);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  display: grid;
  gap: 4px;
}
.page-faq .faq-hero__stat .stat-card::after {
  content: "";
  position: absolute;
  right: -14px;
  bottom: -14px;
  width: 46px;
  height: 46px;
  background: var(--c-neon);
  opacity: 0.14;
  border-radius: 12px;
  transform: rotate(12deg);
}
.page-faq .faq-hero__stat .stat-card--orange::after {
  background: var(--c-orange);
}
.page-faq .faq-hero__stat .faq-hero__stat-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 32px;
  line-height: 1;
  color: var(--c-neon);
  letter-spacing: -0.02em;
}
.page-faq .faq-hero__stat .stat-card--orange .faq-hero__stat-num {
  color: var(--c-orange);
}
.page-faq .faq-hero__stat .faq-hero__stat-label {
  position: relative;
  z-index: 1;
  color: rgba(255,255,255,0.65);
  font-size: 13px;
}

/* ===== 手风琴页面骨架 ===== */
.page-faq .faq-shell {
  display: grid;
  gap: 24px;
  padding: 28px 0 64px;
  align-items: start;
}
.page-faq .faq-index {
  display: grid;
  gap: 14px;
  align-content: start;
}

/* 索引卡片 */
.page-faq .faq-index__card {
  background: var(--c-white);
  border: 1px solid rgba(11,27,61,0.08);
  border-radius: var(--radius-lg);
  box-shadow: var(--sh-card);
  padding: 20px;
}
.page-faq .faq-index__kicker {
  display: inline-block;
  color: var(--c-orange);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.page-faq .faq-index__card h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 4px;
}
.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 8px;
  border-radius: 12px;
  color: var(--c-text);
  text-decoration: none;
  transition: background-color 0.25s var(--ease);
}
.page-faq .faq-index__link:hover {
  background: var(--c-bg);
}
.page-faq .faq-index__num {
  flex: 0 0 auto;
  min-width: 32px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-orange);
  font-size: 16px;
}
.page-faq .faq-index__meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.page-faq .faq-index__text {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.4;
}
.page-faq .faq-index__count {
  color: var(--c-mute);
  font-size: 12px;
  line-height: 1.4;
}

/* 帮助小卡 */
.page-faq .faq-index__help {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  color: #fff;
}
.page-faq .faq-index__help::after {
  content: "";
  position: absolute;
  right: -28px;
  top: -28px;
  width: 92px;
  height: 92px;
  background: var(--c-neon);
  opacity: 0.12;
  border-radius: 22px;
  transform: rotate(25deg);
}
.page-faq .faq-index__help-icon {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--c-orange);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: #fff;
}
.page-faq .faq-index__help h3 {
  margin: 12px 0 4px;
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}
.page-faq .faq-index__help p {
  margin: 0 0 14px;
  color: rgba(255,255,255,0.66);
  font-size: 13px;
}
.page-faq .faq-index__help .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.45);
}
.page-faq .faq-index__help .btn-outline:hover {
  background: var(--c-orange);
  border-color: var(--c-orange);
  color: #fff;
}

/* 问答内容 */
.page-faq .faq-content {
  display: grid;
  gap: 44px;
  min-width: 0;
}
.page-faq .faq-section__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}
.page-faq .faq-section__idx {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--c-deep);
  color: var(--c-cyan);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
}
.page-faq .faq-section__title h2 {
  margin: 2px 0 2px;
  font-size: 24px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.page-faq .faq-section__title p {
  margin: 0;
  color: var(--c-mute);
  font-size: 13px;
}
.page-faq .faq-list {
  display: grid;
  gap: 12px;
  border-top: 2px solid var(--c-deep);
  padding-top: 18px;
}

/* 问题卡片 */
.page-faq .faq-item {
  background: var(--c-white);
  border: 1px solid rgba(11,27,61,0.1);
  border-radius: var(--radius-lg);
  box-shadow: var(--sh-card);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.page-faq .faq-item[open] {
  border-color: rgba(57,255,20,0.5);
  box-shadow: 0 10px 30px rgba(11,27,61,0.12);
}
.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.25s var(--ease);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary:hover {
  background: rgba(245,247,250,0.8);
}
.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  color: var(--c-red);
  border: 1px solid rgba(230,0,18,0.28);
  border-radius: 6px;
  padding: 3px 7px;
  transition: background-color 0.25s var(--ease), color 0.25s var(--ease);
}
.page-faq .faq-item[open] .faq-item__num {
  background: var(--c-red);
  border-color: var(--c-red);
  color: #fff;
}
.page-faq .faq-item summary h3 {
  flex: 1;
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}
.page-faq .faq-item__icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  color: var(--c-orange);
  transition: transform 0.3s var(--ease), color 0.3s var(--ease);
}
.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
  color: var(--c-neon);
}
.page-faq .faq-item__body {
  border-top: 1px solid rgba(11,27,61,0.06);
  padding: 14px 16px 16px;
}
.page-faq .faq-item__body p {
  margin: 0 0 12px;
  color: var(--c-text);
  font-size: 14px;
  line-height: 1.7;
}
.page-faq .faq-item__body p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__body a {
  color: var(--c-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-keyword {
  font-style: normal;
  font-weight: 600;
  color: var(--c-deep);
  padding: 0 2px;
  background: linear-gradient(transparent 55%, rgba(57,255,20,0.45) 55%);
  border-radius: 2px;
}

/* 配图 */
.page-faq .faq-media {
  margin: 14px 0 0;
  background: var(--c-bg);
  border: 1px solid rgba(11,27,61,0.08);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.page-faq .faq-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-media figcaption {
  padding: 10px 12px;
  color: var(--c-mute);
  font-size: 12px;
  line-height: 1.5;
}
.page-faq .faq-media--compact {
  max-width: 460px;
}

/* 底部帮助横幅 */
.page-faq .faq-note {
  position: relative;
  overflow: hidden;
  background: var(--c-deep);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}
.page-faq .faq-note::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 100px;
  height: 100px;
  background: var(--c-cyan);
  opacity: 0.14;
  border-radius: 24px;
  transform: rotate(15deg);
}
.page-faq .faq-note__badge {
  flex: 0 0 auto;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 28px;
  line-height: 1;
  color: var(--c-red);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 12px;
  padding: 10px 12px;
}
.page-faq .faq-note__text {
  flex: 1 1 200px;
}
.page-faq .faq-note__text h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}
.page-faq .faq-note__text p {
  margin: 4px 0 0;
  color: rgba(255,255,255,0.68);
  font-size: 13px;
}
.page-faq .faq-note__actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}
.page-faq .faq-note__link {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-note__link:hover {
  color: var(--c-neon);
}

/* ===== 中等屏幕 ===== */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding-top: 34px;
    padding-bottom: 64px;
  }
  .page-faq .faq-hero__stat {
    grid-template-columns: repeat(2, minmax(0, 220px));
  }
  .page-faq .faq-item summary {
    padding: 18px 20px;
  }
  .page-faq .faq-item__body {
    padding: 14px 20px 20px;
  }
  .page-faq .faq-note {
    padding: 28px;
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 44px 0 76px;
  }
  .page-faq .faq-hero__main {
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
    align-items: center;
    gap: 40px;
  }
  .page-faq .faq-hero__stat {
    justify-self: end;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: 340px;
  }
  .page-faq .faq-shell {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 48px;
    padding: 40px 0 80px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
  .page-faq .faq-section__title h2 {
    font-size: 30px;
  }
  .page-faq .faq-section__idx {
    width: 52px;
    height: 52px;
    font-size: 18px;
  }
}