.page-faq{
  --faq-line: rgba(11,18,32,.10);
  --faq-line-inv: rgba(201,212,226,.20);
  --faq-pad-y: clamp(40px, 6vw, 84px);
  --faq-ease: cubic-bezier(.22,.61,.36,1);
  color: var(--sd-text);
  background: var(--sd-mist);
  font-family: var(--sd-font-body);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq .sd-container{
  padding-left: clamp(16px, 4vw, 28px);
  padding-right: clamp(16px, 4vw, 28px);
}

.page-faq :is(a, button, input, summary):focus-visible{
  outline: 3px solid var(--sd-blue);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  position: relative;
  overflow: hidden;
  background: var(--sd-ink);
  color: var(--sd-mist);
  padding: clamp(34px, 6vw, 74px) 0 clamp(46px, 7vw, 92px);
  border-radius: 0 0 var(--sd-radius-lg) var(--sd-radius-lg);
}

.page-faq .faq-hero::before{
  content: "";
  position: absolute;
  top: -34%;
  right: -18%;
  width: 72%;
  height: 176%;
  transform: rotate(8deg);
  background: linear-gradient(135deg, rgba(10,132,255,.42), rgba(23,26,53,0) 62%);
  pointer-events: none;
}

.page-faq .faq-hero::after{
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--sd-orange), var(--sd-blue) 46%, rgba(10,132,255,0));
}

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

.page-faq .faq-hero__crumbs{
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-hero__title{
  font-family: var(--sd-font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: 14px 0 0;
  max-width: 17ch;
  color: #fff;
}

.page-faq .faq-hero__lead{
  max-width: 58ch;
  margin: 18px 0 0;
  font-size: clamp(1rem, 2.4vw, 1.08rem);
  color: var(--sd-silver);
}

/* ---------- 关键词筛选 ---------- */
.page-faq .faq-search{
  margin-top: clamp(24px, 3.4vw, 36px);
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-search__input{
  width: 100%;
  box-sizing: border-box;
  padding: 14px 22px;
  border-radius: var(--sd-pill);
  border: 1px solid rgba(201,212,226,.30);
  background: rgba(244,247,252,.06);
  color: var(--sd-mist);
  font-family: var(--sd-font-body);
  font-size: 1rem;
  line-height: 1.4;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color .2s var(--faq-ease), background-color .2s var(--faq-ease);
}

.page-faq .faq-search__input::placeholder{
  color: rgba(201,212,226,.55);
}

.page-faq .faq-search__input:focus{
  border-color: var(--sd-blue);
  background: rgba(10,132,255,.10);
}

.page-faq .faq-search__hint{
  font-family: var(--sd-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(201,212,226,.65);
}

/* ---------- 首屏数据条 ---------- */
.page-faq .faq-facts{
  list-style: none;
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-facts li{
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 12px;
  border-top: 2px solid var(--faq-line-inv);
}

.page-faq .faq-facts__num{
  font-family: var(--sd-font-mono);
  font-size: clamp(1.4rem, 4vw, 1.7rem);
  font-weight: 600;
  color: var(--sd-orange);
  letter-spacing: -.02em;
}

.page-faq .faq-facts__label{
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--sd-silver);
}

/* ---------- 主体网格 ---------- */
.page-faq .faq-body{
  padding: var(--faq-pad-y) 0 clamp(52px, 8vw, 100px);
}

.page-faq .faq-body__grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 50px);
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__title{
  color: var(--sd-text-soft);
  margin: 0;
}

.page-faq .faq-index__list{
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 14px 2px 16px;
  margin: 0;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item{
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--sd-pill);
  background: var(--sd-frost);
  color: var(--sd-text-soft);
  font-family: var(--sd-font-body);
  font-size: .93rem;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .2s var(--faq-ease), color .2s var(--faq-ease), border-color .2s var(--faq-ease);
}

.page-faq .faq-index__item:hover{
  border-color: rgba(10,132,255,.45);
}

.page-faq .faq-index__no{
  font-family: var(--sd-font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--sd-blue);
}

.page-faq .faq-index__item[aria-selected="true"]{
  background: var(--sd-ink);
  color: #fff;
}

.page-faq .faq-index__item[aria-selected="true"] .faq-index__no{
  color: var(--sd-orange);
}

.page-faq .faq-index__note{
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sd-text-soft);
}

/* ---------- 右侧面板 ---------- */
.page-faq .faq-panels{
  display: grid;
  gap: 0;
}

.page-faq .faq-panels__bar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--sd-ink);
}

.page-faq .faq-panels__bar .sd-index{
  margin: 0;
  color: var(--sd-text-soft);
}

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

.page-faq .faq-tool{
  border: 1px solid rgba(10,132,255,.42);
  border-radius: var(--sd-pill);
  background: transparent;
  color: var(--sd-blue);
  font-family: var(--sd-font-body);
  font-size: .85rem;
  padding: 7px 16px;
  cursor: pointer;
  transition: background-color .2s var(--faq-ease), color .2s var(--faq-ease);
}

.page-faq .faq-tool:hover{
  background: var(--sd-blue);
  color: #fff;
}

.page-faq .faq-panel{
  padding: clamp(28px, 4vw, 46px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-panel:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-panel__head{
  margin-bottom: clamp(14px, 2vw, 22px);
}

.page-faq .faq-panel__head .sd-index{
  margin: 0;
  color: var(--sd-blue);
}

.page-faq .faq-panel__title{
  font-family: var(--sd-font-display);
  font-weight: 300;
  font-size: clamp(1.5rem, 4.4vw, 2.35rem);
  line-height: 1.14;
  letter-spacing: -.005em;
  margin: 8px 0 0;
  color: var(--sd-ink);
  max-width: 22ch;
}

/* ---------- 问与答 ---------- */
.page-faq .faq-q{
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-q:last-of-type{
  border-bottom: 0;
}

.page-faq .faq-q__q{
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  font-size: clamp(1rem, 2.5vw, 1.06rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--sd-ink);
  transition: color .18s var(--faq-ease);
}

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

.page-faq .faq-q__q:hover{
  color: var(--sd-blue);
}

.page-faq .faq-q__q::after{
  content: "+";
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 3px;
  border-radius: 50%;
  border: 1px solid rgba(10,132,255,.45);
  color: var(--sd-blue);
  font-family: var(--sd-font-mono);
  font-size: 1rem;
  line-height: 1;
  transition: background-color .2s var(--faq-ease), border-color .2s var(--faq-ease), color .2s var(--faq-ease);
}

.page-faq .faq-q[open] .faq-q__q{
  color: var(--sd-blue);
}

.page-faq .faq-q[open] .faq-q__q::after{
  content: "–";
  background: var(--sd-orange);
  border-color: var(--sd-orange);
  color: #fff;
}

.page-faq .faq-q__a{
  max-width: 68ch;
  margin: 0 0 22px 2px;
  padding: 2px 0 0 18px;
  border-left: 2px solid rgba(10,132,255,.35);
  color: var(--sd-text-soft);
  font-size: .98rem;
  line-height: 1.8;
}

.page-faq .faq-q__a p{
  margin: 0 0 10px;
}

.page-faq .faq-q__a p:last-child{
  margin-bottom: 0;
}

.page-faq .faq-q__a a{
  color: var(--sd-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure{
  margin: clamp(20px, 3vw, 30px) 0 0;
}

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

.page-faq .faq-figure .sd-media__cap{
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sd-text-soft);
}

.page-faq .faq-figure--contact{
  margin-top: clamp(24px, 3.6vw, 36px);
}

/* ---------- 联系前清单 ---------- */
.page-faq .faq-check__lead{
  margin: 0;
  max-width: 62ch;
  color: var(--sd-text-soft);
}

.page-faq .faq-check__list{
  list-style: none;
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-check__item{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--sd-radius-md);
  background: var(--sd-frost);
}

.page-faq .faq-check__no{
  flex: 0 0 auto;
  font-family: var(--sd-font-mono);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--sd-blue);
  line-height: 1.5;
}

.page-faq .faq-check__item h3{
  margin: 0 0 4px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--sd-ink);
}

.page-faq .faq-check__item p{
  margin: 0;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--sd-text-soft);
}

/* ---------- 联系渠道 ---------- */
.page-faq .faq-connect{
  margin-top: clamp(26px, 4vw, 38px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-connect__item{
  padding-top: 14px;
  border-top: 3px solid var(--sd-blue);
}

.page-faq .faq-connect__item:nth-child(2){
  border-top-color: var(--sd-orange);
}

.page-faq .faq-connect__item:nth-child(3){
  border-top-color: var(--sd-cyan);
}

.page-faq .faq-connect__item .sd-index{
  margin: 0;
  color: var(--sd-text-soft);
}

.page-faq .faq-connect__val{
  margin: 8px 0 8px;
  font-family: var(--sd-font-mono);
  font-size: .95rem;
  line-height: 1.6;
  color: var(--sd-ink);
  word-break: break-word;
}

.page-faq .faq-connect__desc{
  margin: 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--sd-text-soft);
}

/* ---------- 行动区 ---------- */
.page-faq .faq-cta{
  margin-top: clamp(28px, 4vw, 40px);
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--sd-radius-lg);
  background: var(--sd-obsidian);
  color: var(--sd-mist);
}

.page-faq .faq-cta__text{
  margin: 0;
  max-width: 58ch;
  font-size: .98rem;
  color: var(--sd-silver);
}

.page-faq .faq-cta__links{
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-cta__links .sd-btn{
  text-decoration: none;
}

/* ---------- 底部相关入口 ---------- */
.page-faq .faq-more{
  background: var(--sd-frost);
  padding: clamp(28px, 4vw, 44px) 0;
}

.page-faq .faq-more__inner{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-faq .faq-more__text{
  margin: 0;
  max-width: 54ch;
  font-size: .95rem;
  color: var(--sd-text-soft);
}

.page-faq .faq-more__nav{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-more__nav a{
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--sd-pill);
  border: 1px solid rgba(10,132,255,.35);
  color: var(--sd-blue);
  font-size: .88rem;
  text-decoration: none;
  transition: background-color .2s var(--faq-ease), color .2s var(--faq-ease);
}

.page-faq .faq-more__nav a:hover{
  background: var(--sd-blue);
  color: #fff;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px){
  .page-faq .faq-facts{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .faq-connect{
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .faq-check__list{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px){
  .page-faq .faq-body__grid{
    grid-template-columns: 258px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index{
    position: sticky;
    top: calc(var(--sd-topbar-h) + 20px);
  }

  .page-faq .faq-index__list{
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 12px 0 0;
  }

  .page-faq .faq-index__item{
    width: 100%;
    box-sizing: border-box;
    justify-content: flex-start;
    position: relative;
    padding: 14px 14px 14px 20px;
    border-radius: 12px;
    border: 0;
    border-bottom: 1px solid var(--faq-line);
    background: transparent;
    white-space: normal;
    text-align: left;
  }

  .page-faq .faq-index__item::before{
    content: "";
    position: absolute;
    left: 0;
    top: 16%;
    bottom: 16%;
    width: 3px;
    border-radius: var(--sd-pill);
    background: transparent;
    transition: background-color .22s var(--faq-ease);
  }

  .page-faq .faq-index__item[aria-selected="true"]{
    background: var(--sd-frost);
    color: var(--sd-ink);
  }

  .page-faq .faq-index__item[aria-selected="true"]::before{
    background: var(--sd-orange);
  }

  .page-faq .faq-index__item:hover{
    border-bottom-color: rgba(10,132,255,.45);
  }
}

@media (min-width: 1180px){
  .page-faq .faq-hero__lead{
    max-width: 62ch;
  }

  .page-faq .faq-panel__head{
    display: flex;
    align-items: baseline;
    gap: 20px;
  }

  .page-faq .faq-panel__head .sd-index{
    flex: 0 0 auto;
  }

  .page-faq .faq-panel__title{
    margin-top: 0;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-faq *{
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}
<<<END>>>