.page-faq{
  --faq-line: rgba(13,47,82,.12);
  --faq-line-strong: rgba(13,47,82,.26);
  --faq-soft-shadow: 0 1px 2px rgba(7,26,47,.04), 0 16px 34px -22px rgba(7,26,47,.4);
  background: var(--cloud);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3{
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 0;
  color: var(--ink-800);
}

.page-faq p{ margin: 0 0 .9rem; }
.page-faq p:last-child{ margin-bottom: 0; }

.page-faq .mono{
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .02em;
}

.page-faq .k-kicker{
  font-size: .75rem;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 .6rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.page-faq .k-kicker::before{
  content: "";
  width: 26px;
  height: 2px;
  background: var(--coral);
  display: inline-block;
}

/* ---------- 首屏检索带 ---------- */
.page-faq .k-hero{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.6rem, 5vw, 3.2rem) clamp(1.1rem, 4vw, 2.6rem) clamp(2.2rem, 6vw, 3.8rem);
  border-bottom: 1px solid var(--faq-line);
  background:
    radial-gradient(95% 120% at 92% -15%, rgba(232,243,250,.95) 0%, rgba(232,243,250,0) 62%),
    linear-gradient(168deg, #ffffff 0%, var(--cloud) 48%, var(--mist) 100%);
}
.page-faq .k-hero::before{
  content: "";
  position: absolute;
  top: -12%;
  right: -8%;
  width: 42%;
  height: 132%;
  background: linear-gradient(150deg, rgba(13,47,82,.07), rgba(13,47,82,0));
  clip-path: polygon(40% 0, 100% 0, 60% 100%, 0 100%);
  z-index: -1;
}
.page-faq .k-hero::after{
  content: "";
  position: absolute;
  right: -10%;
  bottom: -45%;
  width: min(30rem, 74vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(217,72,43,.16), rgba(217,72,43,0) 68%);
  z-index: -1;
}
.page-faq .k-hero__inner{ max-width: 46rem; }

.page-faq .k-hero h1{
  font-size: clamp(1.9rem, 6.4vw, 4rem);
  margin-bottom: 1rem;
  text-wrap: balance;
}
.page-faq .k-hero__lead{
  font-size: clamp(.98rem, 2.4vw, 1.1rem);
  color: var(--text);
  max-width: 40rem;
  margin-bottom: 1.4rem;
}

.page-faq .k-jump{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  padding: 0;
  margin: 0;
}
.page-faq .k-jump a{
  display: inline-flex;
  align-items: center;
  padding: .48rem .95rem;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: #fff;
  color: var(--ink-600);
  font-size: .88rem;
  text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}
.page-faq .k-jump a:hover,
.page-faq .k-jump a:focus-visible{
  transform: translateY(-2px);
  border-color: rgba(217,72,43,.55);
  background: var(--coral-soft);
  color: var(--coral);
}

/* ---------- 通用章节 ---------- */
.page-faq .k-section{
  padding: clamp(2.2rem, 6vw, 4.4rem) clamp(1.1rem, 4vw, 2.6rem);
  max-width: 76rem;
  margin: 0 auto;
}
.page-faq .k-section--tight{ padding-top: 0; }
.page-faq .k-section--tint{
  background: var(--mist);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  max-width: none;
}
.page-faq .k-section--tint > *{
  max-width: 76rem;
  margin-left: auto;
  margin-right: auto;
}

.page-faq .k-section__head{ margin-bottom: clamp(1.4rem, 3.5vw, 2.2rem); }
.page-faq .k-section__head h2{
  font-size: clamp(1.45rem, 3.6vw, 2.35rem);
  margin-bottom: .6rem;
}
.page-faq .k-section__lead{
  color: var(--muted);
  font-size: .98rem;
  max-width: 44rem;
  margin: 0;
}

/* ---------- 资料库与标签 ---------- */
.page-faq .k-tags-grid{
  align-items: start;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
}
.page-faq .k-tags-text{ font-size: 1rem; }
.page-faq .k-tags-media{
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  box-shadow: var(--faq-soft-shadow);
  background: linear-gradient(150deg, var(--mist), #ffffff);
}
.page-faq .k-tags-media img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .media__caption{
  font-size: .8rem;
  color: var(--muted);
  padding: .65rem .9rem;
  margin: 0;
  border-top: 1px solid var(--faq-line);
  background: rgba(255,255,255,.7);
}

.page-faq .k-stats{
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .8rem;
  padding: 0;
  margin: 1.8rem 0 0;
}
.page-faq .k-stats li{
  background: #fff;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  padding: .9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.page-faq .k-stats__num{
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  color: var(--ink-800);
  letter-spacing: -.02em;
}
.page-faq .k-stats__label{
  font-size: .82rem;
  color: var(--muted);
}

/* ---------- 五段分类 ---------- */
.page-faq .k-path{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .9rem;
}
.page-faq .k-path__item{
  position: relative;
  background: #fff;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  padding: 1.2rem 1.1rem 1rem;
  box-shadow: var(--faq-soft-shadow);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}
.page-faq .k-path__item:hover{
  transform: translateY(-3px);
  border-color: rgba(217,72,43,.45);
}
.page-faq .k-path__num{
  display: inline-block;
  font-size: .74rem;
  color: var(--coral);
  background: var(--coral-soft);
  border-radius: 999px;
  padding: .12rem .55rem;
  margin-bottom: .6rem;
}
.page-faq .k-path__item h3{
  font-size: 1.05rem;
  margin-bottom: .5rem;
}
.page-faq .k-path__item p{
  font-size: .92rem;
  color: var(--text);
}
.page-faq .k-path__meta{
  font-size: .74rem;
  color: var(--muted);
  margin: .7rem 0 0;
  padding-top: .6rem;
  border-top: 1px dashed var(--faq-line);
}

/* ---------- 七个入口 ---------- */
.page-faq .k-entry{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .7rem;
}
.page-faq .k-entry a{
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num desc";
  align-items: center;
  gap: .1rem .7rem;
  padding: .85rem 1rem;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-line-strong);
  border-radius: var(--r-sm);
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}
.page-faq .k-entry a:hover,
.page-faq .k-entry a:focus-visible{
  border-left-color: var(--coral);
  background: var(--coral-soft);
  transform: translateX(2px);
}
.page-faq .k-entry__num{
  grid-area: num;
  font-size: .78rem;
  color: var(--muted);
}
.page-faq .k-entry__name{
  grid-area: name;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--ink-800);
  font-size: .98rem;
}
.page-faq .k-entry__desc{
  grid-area: desc;
  font-size: .85rem;
  color: var(--muted);
  line-height: 1.55;
}

/* ---------- 双端对照 ---------- */
.page-faq .k-mirror{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
  align-items: start;
}
.page-faq .k-mirror__text h2{
  font-size: clamp(1.45rem, 3.6vw, 2.3rem);
  margin-bottom: .7rem;
}
.page-faq .k-mirror__text > p{ font-size: .98rem; }

.page-faq .k-mirror__rows{
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  border-top: 1px solid var(--faq-line);
}
.page-faq .k-mirror__rows li{
  display: grid;
  grid-template-columns: 1fr;
  gap: .15rem;
  padding: .8rem 0;
  border-bottom: 1px solid var(--faq-line);
}
.page-faq .k-mirror__k{
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--jade);
  letter-spacing: .04em;
}
.page-faq .k-mirror__v{
  font-size: .92rem;
  color: var(--text);
}

.page-faq .k-mirror__figure{
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  box-shadow: var(--faq-soft-shadow);
  background: #fff;
}
.page-faq .k-mirror__figure img{
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 问答区 ---------- */
.page-faq .k-qa-layout{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3.5vw, 2.2rem);
  align-items: start;
}
.page-faq .k-qa-main{ min-width: 0; }

.page-faq .accordion__item{
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: #fff;
  margin-bottom: .6rem;
  overflow: hidden;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.page-faq .accordion__item:hover{ border-color: var(--faq-line-strong); }
.page-faq .accordion__item:has(.accordion__trigger[aria-expanded="true"]){
  border-color: rgba(8,122,90,.42);
  box-shadow: 0 10px 26px -20px rgba(8,122,90,.75);
}
.page-faq .accordion__item h3{ margin: 0; }
.page-faq .accordion__trigger{
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .9rem;
  padding: .95rem 1rem;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .98rem;
  line-height: 1.5;
  color: var(--ink-800);
  transition: color .2s var(--ease);
}
.page-faq .accordion__trigger:hover{ color: var(--ink-600); }
.page-faq .accordion__trigger::after{
  content: "+";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 1px solid var(--faq-line-strong);
  color: var(--coral);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  transition: transform .24s var(--ease), background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}
.page-faq .accordion__trigger[aria-expanded="true"]::after{
  content: "–";
  transform: rotate(180deg);
  background: var(--jade-soft);
  border-color: rgba(8,122,90,.45);
  color: var(--jade);
}
.page-faq .accordion__panel{ overflow: hidden; }
.page-faq .accordion__panel-inner{
  padding: 0 1rem 1rem;
  font-size: .93rem;
  color: var(--text);
  border-top: 1px dashed var(--faq-line);
  padding-top: .8rem;
  margin-top: -.1rem;
}

/* ---------- 侧栏 ---------- */
.page-faq .k-qa-side{
  display: grid;
  gap: .8rem;
  min-width: 0;
}
.page-faq .k-sidecard{
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  background: #fff;
  padding: 1rem 1rem 1.05rem;
  box-shadow: var(--faq-soft-shadow);
}
.page-faq .k-sidecard--mint{
  background: var(--jade-soft);
  border-color: rgba(8,122,90,.24);
}
.page-faq .k-sidecard--coral{
  background: var(--coral-soft);
  border-color: rgba(217,72,43,.24);
}
.page-faq .k-sidecard__title{
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 .7rem;
  font-weight: 500;
}
.page-faq .k-sidecard__line{
  font-size: .87rem;
  margin: 0 0 .5rem;
  color: var(--text);
  word-break: break-word;
}
.page-faq .k-sidecard__line .mono{
  color: var(--ink-600);
  font-size: .74rem;
  margin-right: .35rem;
}
.page-faq .k-sidecard__foot{
  font-size: .78rem;
  color: var(--muted);
  margin: .55rem 0 0;
  line-height: 1.6;
}
.page-faq .k-sidecard__link{
  display: inline-block;
  margin-top: .6rem;
  font-size: .82rem;
  color: var(--jade);
  text-decoration: none;
  border-bottom: 1px solid rgba(8,122,90,.35);
  padding-bottom: 1px;
}
.page-faq .k-sidecard__link:hover{ color: var(--ink-800); border-bottom-color: var(--ink-800); }

.page-faq .k-cloud{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: 0;
  margin: 0;
}
.page-faq .k-cloud a{
  display: inline-block;
  padding: .3rem .66rem;
  border-radius: 999px;
  border: 1px solid var(--faq-line);
  background: var(--mist);
  color: var(--ink-600);
  font-size: .8rem;
  text-decoration: none;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-faq .k-cloud a:hover,
.page-faq .k-cloud a:focus-visible{
  background: var(--jade-soft);
  border-color: rgba(8,122,90,.4);
  color: var(--jade);
}

.page-faq .copy-btn{ margin-top: .2rem; }
.page-faq .copy-btn[data-copied="true"]{
  background: var(--ink-800);
  border-color: var(--ink-800);
  color: #fff;
}

/* ---------- 底部引导 ---------- */
.page-faq .k-cta{
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  padding: clamp(1.5rem, 5vw, 2.6rem);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--ink-800), var(--ink-950));
  color: #fff;
}
.page-faq .k-cta::after{
  content: "";
  position: absolute;
  right: -6rem;
  bottom: -7rem;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 0 0 2.6rem rgba(255,255,255,.05), 0 0 0 5.4rem rgba(255,255,255,.035);
  pointer-events: none;
}
.page-faq .k-cta h2{
  color: #fff;
  font-size: clamp(1.25rem, 3.4vw, 1.8rem);
  margin-bottom: .5rem;
}
.page-faq .k-cta p{
  color: rgba(248,252,255,.82);
  font-size: .93rem;
  max-width: 36rem;
  margin: 0;
}
.page-faq .k-cta__actions{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .9rem;
  position: relative;
  z-index: 1;
}
.page-faq .k-cta__link{
  color: #fff;
  font-size: .9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.45);
  padding-bottom: 2px;
}
.page-faq .k-cta__link:hover{ border-bottom-color: var(--coral-soft); color: var(--coral-soft); }

/* ---------- 断点 ---------- */
@media (min-width: 640px){
  .page-faq .k-stats{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-faq .k-entry{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .k-mirror__rows li{
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: .8rem;
    align-items: baseline;
  }
}

@media (min-width: 900px){
  .page-faq .k-path{ grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .page-faq .k-path__item{ grid-column: span 2; }
  .page-faq .k-path__item:nth-child(1),
  .page-faq .k-path__item:nth-child(2){ grid-column: span 3; }
  .page-faq .k-entry{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-faq .k-entry__item:nth-child(2),
  .page-faq .k-entry__item:nth-child(5),
  .page-faq .k-entry__item:nth-child(7){ margin-top: .8rem; }
  .page-faq .k-cta{
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .page-faq .k-cta__actions{ flex: 0 0 auto; }
}

@media (min-width: 1000px){
  .page-faq .k-tags-grid{ grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .page-faq .k-mirror{ grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .page-faq .k-mirror__figure{ margin-top: .5rem; }
  .page-faq .k-qa-layout{ grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr); }
  .page-faq .k-qa-side{
    position: sticky;
    top: calc(var(--topbar-h) + 1rem);
  }
}

@media (min-width: 1200px){
  .page-faq .k-hero__inner{ max-width: 50rem; }
}

@media (prefers-reduced-motion: reduce){
  .page-faq .k-jump a,
  .page-faq .k-path__item,
  .page-faq .k-entry a,
  .page-faq .accordion__trigger::after,
  .page-faq .accordion__item{
    transition: none;
  }
  .page-faq .k-jump a:hover,
  .page-faq .k-path__item:hover,
  .page-faq .k-entry a:hover{
    transform: none;
  }
}