/* ===== 帮助中心 · 页面专属样式 ===== */
.page-faq {
  --faq-card: #FFFFFF;
  --faq-line: rgba(26, 26, 26, .12);
  --faq-line-soft: rgba(26, 26, 26, .07);
  --faq-ink-soft: #3A3733;
  --faq-gold-soft: rgba(212, 175, 55, .18);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 30px) 0 clamp(48px, 6vw, 88px);
  background-color: var(--ink);
  background-image:
    radial-gradient(760px 380px at 84% 0%, rgba(192, 57, 43, .42), transparent 62%),
    radial-gradient(620px 340px at 2% 100%, rgba(46, 139, 87, .16), transparent 62%);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
  margin-top: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(212, 175, 55, 0));
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 56px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--paper);
  transform: skewX(-1.5deg);
}

.page-faq .faq-hero h1 em {
  font-style: normal;
  color: var(--gold);
  text-shadow: 0 0 26px rgba(212, 175, 55, .5);
}

.page-faq .faq-hero__lead {
  margin: 20px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(245, 240, 232, .78);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__stats li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13.5px;
  color: rgba(245, 240, 232, .7);
}

.page-faq .faq-hero__stats .mono {
  font-size: 22px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .02em;
}

.page-faq .faq-hero__art {
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--glass-line);
  background: var(--glass);
  box-shadow: var(--shadow-lg);
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 12px;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(40px, 6vw, 76px) 0 clamp(56px, 8vw, 100px);
}

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

/* 主题目录：移动端横向标签 */
.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-rail__list li {
  flex: 0 0 auto;
}

.page-faq .faq-rail__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 9px 15px;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: var(--faq-card);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.2;
  text-decoration: none;
  transition: background 240ms var(--ease), border-color 240ms var(--ease), color 240ms var(--ease);
}

.page-faq .faq-rail__list a:hover {
  border-color: var(--gold);
  background: var(--faq-gold-soft);
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 92px;
}

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(52px, 7vw, 92px);
}

.page-faq .faq-sec .section-head {
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-faq .faq-sub {
  margin: 26px 0 10px;
  padding-left: 12px;
  border-left: 3px solid var(--gold);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .faq-sub:first-child {
  margin-top: 0;
}

.page-faq .faq-card {
  padding: clamp(18px, 2.6vw, 28px);
  border-radius: var(--radius);
  border: 1px solid var(--faq-line);
  background: var(--faq-card);
}

.page-faq .faq-card--wide {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
  align-items: start;
}

.page-faq .faq-figure {
  margin: 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--gray);
}

/* ---------- 折叠面板 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--faq-card);
  overflow: hidden;
  transition: border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(212, 175, 55, .6);
  box-shadow: 0 12px 28px rgba(26, 26, 26, .08);
}

.page-faq .faq-item > summary {
  position: relative;
  display: block;
  padding: 16px 54px 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .faq-item > summary:hover {
  background: rgba(212, 175, 55, .08);
}

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--gold-deep);
  border-bottom: 2px solid var(--gold-deep);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 240ms var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

.page-faq .faq-item__a {
  padding: 0 18px 18px;
  border-top: 1px dashed var(--faq-line);
  margin-top: -1px;
  color: var(--faq-ink-soft);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq .faq-item__a p {
  margin: 12px 0 0;
}

.page-faq .faq-item__a p:first-child {
  margin-top: 14px;
}

@keyframes faqOpenIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

.page-faq .faq-item[open] .faq-item__a {
  animation: faqOpenIn 260ms var(--ease) both;
}

/* ---------- 内联高亮 ---------- */
.page-faq .faq-mark {
  padding: 1px 6px;
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(240, 217, 121, .6), rgba(212, 175, 55, .28));
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 步骤列表 ---------- */
.page-faq .steps {
  position: relative;
  counter-reset: step;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 10px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold), rgba(212, 175, 55, .12));
}

.page-faq .steps > li {
  position: relative;
  counter-increment: step;
  padding: 0 0 14px 36px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .steps > li:last-child {
  padding-bottom: 0;
}

.page-faq .steps > li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 1px;
  top: 0;
  width: 30px;
  padding: 2px 0 2px 4px;
  background: var(--faq-card);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gold-deep);
}

.page-faq .steps strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 状态图例 ---------- */
.page-faq .faq-legend {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-legend li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--faq-line-soft);
  background: var(--faq-card);
}

.page-faq .faq-legend__txt {
  flex: 1 1 200px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

/* ---------- 等级档位 ---------- */
.page-faq .faq-tiers {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(158px, 1fr));
  gap: 8px;
}

.page-faq .faq-tiers li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--faq-line-soft);
  background: var(--faq-card);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--faq-ink-soft);
}

.page-faq .faq-tiers .mono {
  flex: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--gold-deep);
}

/* ---------- 会员等级 ---------- */
.page-faq .faq-levels {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-levels li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  align-items: center;
  gap: 6px 12px;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--faq-line-soft);
  background: var(--faq-card);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--faq-ink-soft);
}

.page-faq .faq-levels .mono {
  grid-row: 1;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--gold-deep);
}

.page-faq .faq-levels strong {
  grid-row: 1;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15.5px;
  color: var(--ink);
}

.page-faq .faq-levels li > span:last-child {
  grid-column: 1 / -1;
}

/* ---------- 反馈渠道 ---------- */
.page-faq .faq-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-channel {
  padding: clamp(18px, 2.4vw, 24px);
  border-radius: var(--radius);
  border: 1px solid rgba(212, 175, 55, .3);
  background-color: var(--ink);
  background-image: radial-gradient(320px 180px at 100% 0%, rgba(192, 57, 43, .32), transparent 68%);
  color: var(--paper);
}

.page-faq .faq-channel__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-channel__v {
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-channel__v.mono {
  font-size: 15.5px;
  letter-spacing: .03em;
  word-break: break-all;
}

.page-faq .faq-channel__n {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(245, 240, 232, .68);
}

.page-faq .faq-needs {
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-needs__list {
  list-style: none;
  margin: 16px 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-needs__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-needs__list .mono {
  flex: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold-deep);
}

.page-faq .faq-needs p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(48px, 6vw, 80px);
  padding: clamp(24px, 3.2vw, 42px);
  border-radius: var(--radius);
  background-image: linear-gradient(135deg, var(--red-deep), var(--red) 58%, #A82F20);
  color: var(--paper);
  box-shadow: var(--shadow-lg);
}

.page-faq .faq-outro h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 30px);
  line-height: 1.3;
  color: var(--paper);
  transform: skewX(-1.2deg);
}

.page-faq .faq-outro p {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 240, 232, .84);
}

.page-faq .faq-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-outro .btn--ghost {
  color: var(--paper);
  border-color: rgba(255, 255, 255, .55);
  background: rgba(255, 255, 255, .08);
}

.page-faq .faq-outro .btn--ghost:hover {
  color: var(--gold-light);
  border-color: var(--gold);
  background: rgba(255, 255, 255, .18);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: clamp(36px, 4vw, 60px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-faq .faq-rail__title {
    margin-bottom: 14px;
  }

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

  .page-faq .faq-rail__list li {
    width: 100%;
  }

  .page-faq .faq-rail__list a {
    display: block;
    width: 100%;
    padding: 11px 14px;
    border: 0;
    border-left: 3px solid transparent;
    border-radius: 0 10px 10px 0;
    background: transparent;
    color: var(--gray);
    font-size: 15px;
  }

  .page-faq .faq-rail__list a:hover {
    background: rgba(26, 26, 26, .05);
    color: var(--ink);
  }

  .page-faq .faq-rail__list a[aria-current="true"] {
    border-left-color: var(--gold);
    background: linear-gradient(90deg, rgba(212, 175, 55, .2), rgba(212, 175, 55, 0));
    color: var(--ink);
    font-weight: 700;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 56px;
  }
}

@media (min-width: 820px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(20px, 3vw, 34px);
  }
}

@media (min-width: 720px) {
  .page-faq .faq-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 无障碍与降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-rail__list a {
    transition: none;
  }
}