/* ================= 问答中心 · page-faq ================= */
.page-faq{
  --faq-acc: var(--teal);
  --faq-gap: clamp(14px, 2.4vw, 24px);
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq section[id]{
  scroll-margin-top: 130px;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs{
  padding-top: clamp(20px, 3.4vw, 34px);
}
.page-faq .crumbs__list{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--muted);
}
.page-faq .crumbs__list li{
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-faq .crumbs__list a{
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}
.page-faq .crumbs__list a:hover,
.page-faq .crumbs__list a:focus-visible{
  color: var(--teal);
  border-bottom-color: var(--teal);
}
.page-faq .crumbs__sep{
  color: #35507A;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero{
  display: grid;
  gap: var(--faq-gap);
  padding-block: clamp(24px, 4.6vw, 52px) clamp(30px, 5vw, 58px);
  border-bottom: var(--bw) solid var(--line);
}
.page-faq .faq-hero__head{
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.page-faq .faq-hero .kicker{
  margin: 0;
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal);
}
.page-faq .faq-hero h1{
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(30px, 5.2vw, 50px);
  line-height: 1.22;
  color: var(--text);
  letter-spacing: .01em;
}
.page-faq .faq-hero .lede{
  margin: 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-search{
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 16px;
  background: var(--panel);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
}
.page-faq .faq-search::before{
  content: "";
  position: absolute;
  top: -2px;
  left: 18px;
  width: 56px;
  height: 3px;
  background: var(--teal);
}
.page-faq .faq-search__label{
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--amber);
}
.page-faq .faq-search input{
  box-sizing: border-box;
  width: 100%;
  padding: 12px 14px;
  background: var(--ink);
  border: var(--bw) solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.page-faq .faq-search input::placeholder{
  color: #5E7390;
}
.page-faq .faq-search input:focus{
  outline: none;
  border-color: var(--teal);
  box-shadow: var(--shadow-teal);
}
.page-faq .faq-search__hint{
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

@media (min-width: 920px){
  .page-faq .faq-hero{
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr);
    grid-template-areas: "head search";
    column-gap: 48px;
    align-items: end;
  }
  .page-faq .faq-hero__head{ grid-area: head; }
  .page-faq .faq-search{ grid-area: search; }
}

/* ---------- 分组章节头 ---------- */
.page-faq .faq-group .sec-head{
  border-top: var(--bw-thick) solid var(--faq-acc);
  padding-top: 16px;
  margin-bottom: clamp(16px, 2.6vw, 28px);
}
.page-faq .faq-group .sec-head__index{
  color: var(--faq-acc);
}
.page-faq .faq-group--account{ --faq-acc: var(--teal); }
.page-faq .faq-group--channel{ --faq-acc: var(--amber); }
.page-faq .faq-group--library{ --faq-acc: var(--orange); }
.page-faq .faq-group--security{ --faq-acc: var(--teal); }
.page-faq .faq-group--feedback{ --faq-acc: var(--amber); }

/* ---------- 三种情况 ---------- */
.page-faq .faq-cases{
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-case{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  background: var(--panel);
  border: var(--bw) solid var(--line);
  border-top: var(--bw-thick) solid var(--teal);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.page-faq .faq-case:hover,
.page-faq .faq-case:focus-visible{
  transform: translateY(-3px);
  border-color: var(--teal);
  border-top-color: var(--teal);
  box-shadow: var(--shadow-teal);
  outline: none;
}
.page-faq .faq-case__no{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background: var(--teal);
  color: var(--ink);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.page-faq .faq-case__title{
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}
.page-faq .faq-case__desc{
  flex: 1 1 auto;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}
.page-faq .faq-case__go{
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--teal);
}
.page-faq .faq-case__go::after{
  content: " →";
}

@media (min-width: 820px){
  .page-faq .faq-cases{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 图 ---------- */
.page-faq .faq-figure{
  margin: clamp(26px, 4vw, 46px) 0 0;
}
.page-faq .figure__media{
  overflow: hidden;
  background: var(--panel);
  border: var(--bw) solid var(--line);
  border-radius: var(--radius);
}
.page-faq .figure__media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .figure__caption{
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--muted);
}

/* ---------- 三步速查带 ---------- */
.page-faq .faq-route{
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(22px, 3.4vw, 38px);
}
.page-faq .faq-route .step{
  background: var(--panel);
  border: var(--bw) solid var(--line);
  border-top: var(--bw-thick) solid var(--orange);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .22s ease, box-shadow .22s ease;
}
.page-faq .faq-route .step[data-open="true"]{
  border-color: rgba(63, 224, 206, .38);
  border-top-color: var(--teal);
  box-shadow: var(--shadow-teal);
}
.page-faq .faq-route .step__head{
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 16px 16px 14px;
  background: transparent;
  border: 0;
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.page-faq .faq-route .step__num{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--orange);
}
.page-faq .faq-route .step__title{
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
}
.page-faq .faq-route .step__body{
  margin-top: 2px;
  padding: 12px 16px 18px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-faq .faq-route .step__body p{
  margin: 0;
}

@media (min-width: 820px){
  .page-faq .faq-route{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 问答卡片 ---------- */
.page-faq .faq-list{
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}
.page-faq .faq-item{
  background: var(--panel);
  border: var(--bw) solid var(--line);
  border-top: var(--bw-thick) solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .22s ease, box-shadow .22s ease;
}
.page-faq .faq-item:hover{
  border-top-color: var(--faq-acc);
}
.page-faq .faq-item[open]{
  border-color: rgba(63, 224, 206, .38);
  border-top-color: var(--teal);
  box-shadow: var(--shadow-teal);
}
.page-faq .faq-item__q{
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--text);
}
.page-faq .faq-item__q::-webkit-details-marker{ display: none; }
.page-faq .faq-item__q::marker{ content: ""; }
.page-faq .faq-item__num{
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--faq-acc);
}
.page-faq .faq-item__text{
  flex: 1 1 auto;
  min-width: 0;
}
.page-faq .faq-item__sign{
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: var(--bw) solid var(--line);
  border-radius: 4px;
  transition: border-color .2s ease;
}
.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after{
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--teal);
  transition: opacity .2s ease;
}
.page-faq .faq-item__sign::before{ width: 8px; height: 2px; }
.page-faq .faq-item__sign::after{ width: 2px; height: 8px; }
.page-faq .faq-item[open] .faq-item__sign{
  border-color: var(--teal);
}
.page-faq .faq-item[open] .faq-item__sign::after{
  opacity: 0;
}
.page-faq .faq-item__a{
  padding: 14px 16px 20px;
  border-top: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}
.page-faq .faq-item__a p{
  margin: 0;
}
.page-faq .faq-item__a strong{
  color: var(--text);
  font-weight: 600;
}
.page-faq .faq-item__a a{
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 206, .45);
}
.page-faq .faq-item__a a:hover{
  border-bottom-color: var(--teal);
}
.page-faq .faq-item__a .mono{
  color: var(--amber);
}

/* ---------- 安全校验非对称分栏 ---------- */
.page-faq .faq-security{
  display: grid;
  gap: var(--faq-gap);
}
.page-faq .faq-security__figure{
  margin: 0;
}

@media (min-width: 980px){
  .page-faq .faq-security{
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    column-gap: clamp(24px, 3.4vw, 44px);
  }
}

/* ---------- 响应时效 ---------- */
.page-faq .faq-stats{
  margin-bottom: clamp(20px, 3vw, 32px);
}
.page-faq .faq-stats .stat__num{
  font-size: clamp(20px, 2.4vw, 26px);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  margin-top: clamp(24px, 4vw, 42px);
  padding: 22px 20px;
  background:
    linear-gradient(135deg, rgba(255, 138, 61, .10), rgba(12, 27, 46, 0) 62%),
    var(--panel);
  border: var(--bw) solid var(--line);
  border-left: var(--bw-thick) solid var(--orange);
  border-radius: var(--radius);
}
.page-faq .faq-cta__text{
  flex: 1 1 320px;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}
.page-faq .faq-cta__text .mono{
  color: var(--amber);
}
.page-faq .faq-cta__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 520px){
  .page-faq .faq-item__q{
    font-size: 15.5px;
    gap: 10px;
  }
  .page-faq .faq-cta__actions .btn{
    flex: 1 1 auto;
    text-align: center;
  }
}
<<<END>>>