/* ===== 帮助中心 /help-center/ ===== */
.page-faq{
  --faq-radius: 12px;
  --faq-gap: clamp(30px, 5vw, 56px);
  background: var(--paper);
  color: var(--ink);
}

.page-faq .faq-inline-link{
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--coral-200);
  transition: border-color .2s ease-out, color .2s ease-out;
}
.page-faq .faq-inline-link:hover{
  border-bottom-color: var(--accent);
  color: var(--blue-900);
}

/* ---------- 首屏 ---------- */
.page-faq .breadcrumbs{
  padding-top: 22px;
  font-size: 13px;
  color: var(--muted);
}
.page-faq .breadcrumbs a{
  color: var(--muted);
  text-decoration: none;
}
.page-faq .breadcrumbs a:hover{ color: var(--accent); }

.page-faq .faq-intro{ padding-top: clamp(18px, 3vw, 32px); }

.page-faq .faq-intro-grid{
  display: grid;
  gap: 26px;
}

.page-faq .faq-title{
  margin: 12px 0 0;
  max-width: 22em;
  font-size: clamp(30px, 5.2vw, 48px);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: .02em;
  color: var(--blue-900);
}

.page-faq .faq-lede{
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--blue-700);
}

.page-faq .faq-intro-note{
  padding-left: 16px;
  border-left: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}
.page-faq .faq-intro-note p{ margin: 0 0 12px; }
.page-faq .faq-intro-note p:last-child{ margin-bottom: 0; }

/* ---------- 三步路径 ---------- */
.page-faq .faq-path{ padding-top: var(--faq-gap); }

.page-faq .faq-path-media{ margin-bottom: clamp(26px, 4vw, 44px); }
.page-faq .faq-path-media img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--faq-radius);
  border: 1px solid var(--line);
}

.page-faq .faq-path-head{ margin-bottom: 22px; }

.page-faq .faq-path-title{
  margin: 0;
  font-size: clamp(22px, 3vw, 28px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--blue-900);
}
.page-faq .faq-path-sub{
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-flow{
  position: relative;
  display: grid;
  gap: 16px;
}

.page-faq .faq-flow-line{ display: none; }

.page-faq .faq-step{
  display: block;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: #fff;
  box-shadow: var(--shadow);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
}
.page-faq .faq-step:hover,
.page-faq .faq-step:focus-visible{
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-step-num{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
  transition: background-color .32s ease-out, color .32s ease-out;
}

.page-faq .faq-step-title{
  display: block;
  margin: 14px 0 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--blue-900);
}
.page-faq .faq-step-text{
  display: block;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--blue-700);
}
.page-faq .faq-step-hint{
  display: block;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout{
  display: grid;
  gap: 28px;
  min-width: 0;
}

.page-faq .anchor-index{
  min-width: 0;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
}
.page-faq .anchor-index-title{
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .anchor-index ul{
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-faq .anchor-index a{
  display: block;
  padding: 7px 0 7px 12px;
  border-left: 2px solid var(--line);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color .2s ease-out, border-color .2s ease-out;
}
.page-faq .anchor-index a:hover{
  color: var(--blue-900);
  border-left-color: var(--teal-500);
}
.page-faq .anchor-index a.is-active{
  color: var(--blue-900);
  font-weight: 600;
  border-left-color: var(--accent);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-chapter{
  padding-top: clamp(38px, 6vw, 64px);
  scroll-margin-top: 112px;
}
.page-faq .faq-chapter:first-child{ padding-top: 6px; }

.page-faq .chapter-head{
  display: grid;
  gap: 6px;
  margin-bottom: 20px;
}
.page-faq .chapter-num{
  font-size: clamp(42px, 8vw, 76px);
  font-weight: 300;
  line-height: .9;
  letter-spacing: .02em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}
.page-faq .chapter-title{
  margin: 0;
  font-size: clamp(21px, 3vw, 27px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--blue-900);
}
.page-faq .chapter-note{
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq details.panel{
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: #fff;
  overflow: hidden;
  transition: border-color .2s ease-out;
}
.page-faq details.panel:hover{ border-color: rgba(47,182,168,.5); }
.page-faq details.panel[open]{ border-color: var(--teal-500); }

.page-faq .panel-summary{
  position: relative;
  display: block;
  padding: 15px 48px 15px 16px;
  background: rgba(168, 228, 220, .32);
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--blue-900);
  cursor: pointer;
  list-style: none;
}
.page-faq .panel-summary::-webkit-details-marker{ display: none; }
.page-faq .panel-summary::after{
  content: "+";
  position: absolute;
  top: 50%;
  right: 18px;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  line-height: 1;
  color: var(--teal-500);
}
.page-faq details.panel[open] .panel-summary::after{ content: "–"; }

.page-faq .panel-body{
  padding: 14px 16px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--blue-700);
}
.page-faq .panel-body p{ margin: 0; }

/* ---------- 三个影响因素 ---------- */
.page-faq .faq-factors{
  display: grid;
  gap: 12px;
  margin-top: 26px;
}
.page-faq .faq-factor{
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: #fff;
  transition: border-color .2s ease-out, transform .2s ease-out;
}
.page-faq .faq-factor:hover{
  border-color: var(--coral-200);
  transform: translateY(-2px);
}
.page-faq .faq-factor-label{
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}
.page-faq .faq-factor-text{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--blue-700);
}

/* ---------- 估算示例 ---------- */
.page-faq .faq-example{
  margin-top: 26px;
  padding: 20px 20px 22px;
  border-left: 3px solid var(--coral-500);
  border-radius: 0 var(--faq-radius) var(--faq-radius) 0;
  background: linear-gradient(90deg, rgba(255,199,184,.22), rgba(255,199,184,0));
}
.page-faq .faq-example-title{
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-900);
}
.page-faq .faq-example p{
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--blue-700);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split{
  display: grid;
  gap: 22px;
  min-width: 0;
}
.page-faq .faq-account-media img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: var(--faq-radius);
  border: 1px solid var(--line);
}
.page-faq .faq-account-media .media-caption{
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}
.page-faq .faq-split-body{ min-width: 0; }

/* ---------- 相关指引 ---------- */
.page-faq .faq-related{
  margin-top: 22px;
  padding: 18px;
  border: 1px dashed var(--line);
  border-radius: var(--faq-radius);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--blue-700);
}
.page-faq .faq-related p{ margin: 0 0 10px; }
.page-faq .faq-related p:last-child{ margin-bottom: 0; }

/* ---------- 兜底咨询 ---------- */
.page-faq .faq-contact-grid{
  display: grid;
  gap: 14px;
}
.page-faq .faq-contact-card{
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.page-faq .faq-contact-label{
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .faq-contact-value{
  margin: 0 0 8px;
  font-size: clamp(16px, 2.4vw, 19px);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--blue-900);
  word-break: break-all;
}
.page-faq .faq-contact-note{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .faq-prep{
  margin-top: 22px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: #fff;
  overflow: hidden;
}
.page-faq .faq-prep-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(168, 228, 220, .32);
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-prep-title{
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--blue-900);
}
.page-faq .prep-copy{
  padding: 6px 14px;
  border: 1px solid var(--teal-500);
  border-radius: var(--pill);
  background: transparent;
  color: var(--blue-700);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background-color .2s ease-out, color .2s ease-out;
}
.page-faq .prep-copy:hover{
  background: var(--teal-200);
  color: var(--blue-900);
}
.page-faq .faq-prep-list{
  margin: 0;
  padding: 6px 16px 14px;
  list-style: none;
}
.page-faq .faq-prep-list li{
  display: flex;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--blue-700);
}
.page-faq .faq-prep-list li:last-child{ border-bottom: 0; }
.page-faq .faq-prep-key{
  flex: 0 0 5.4em;
  color: var(--blue-900);
  font-weight: 600;
}

/* ---------- 下一步链接 ---------- */
.page-faq .faq-next{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  font-size: 14.5px;
  color: var(--accent);
  text-decoration: none;
  transition: gap .2s ease-out, border-color .2s ease-out;
}
.page-faq .faq-next::after{
  content: "→";
  line-height: 1;
  transition: transform .2s ease-out;
}
.page-faq .faq-next:hover{
  gap: 12px;
  border-bottom-color: currentColor;
}

/* ---------- 平板 ---------- */
@media (min-width: 720px){
  .page-faq .faq-factors{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .faq-contact-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .faq-split{ grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
  .page-faq .faq-split-body .panel:first-child{ margin-top: 0; }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px){
  .page-faq .faq-intro-grid{
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 32px;
    align-items: start;
  }
  .page-faq .faq-intro-main{ grid-column: 1 / span 8; }
  .page-faq .faq-intro-note{ grid-column: 10 / span 3; margin-top: 44px; }

  .page-faq .faq-flow{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }
  .page-faq .faq-flow-line{
    display: block;
    position: absolute;
    top: 14px;
    left: 8%;
    right: 8%;
    width: 84%;
    height: 26px;
    pointer-events: none;
  }
  .page-faq .faq-step{ padding-top: 22px; }
  .page-faq .faq-step:nth-child(3){ margin-top: 26px; }
  .page-faq .faq-step:nth-child(4){ margin-top: 52px; }

  .page-faq .faq-layout{
    grid-template-columns: 190px minmax(0, 1fr);
    column-gap: 60px;
    align-items: start;
  }
  .page-faq .anchor-index{
    position: sticky;
    top: 112px;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .page-faq .anchor-index ul{
    display: block;
  }
  .page-faq .anchor-index a{ font-size: 14px; }

  .page-faq .chapter-head{
    grid-template-columns: 1fr;
    column-gap: 0;
  }

  .page-faq .faq-factors{ gap: 22px; }
  .page-faq .faq-factor:nth-child(2){ margin-top: 24px; }
  .page-faq .faq-factor:nth-child(3){ margin-top: 48px; }

  .page-faq .faq-example{ margin-top: 44px; }
}

@media (min-width: 1280px){
  .page-faq .faq-title{ font-size: 50px; }
}