.page-faq {
  --faq-text: #C6D6EC;
  --faq-soft: rgba(41, 224, 210, .10);
  --faq-soft-strong: rgba(41, 224, 210, .16);
}

/* ---------- 首屏 ---------- */

.page-faq__hero {
  padding-bottom: clamp(24px, 4vw, 40px);
}

.page-faq__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--white);
  margin: 16px 0 0;
  max-width: 22ch;
}

.page-faq__title::after {
  content: "";
  display: block;
  width: 76px;
  height: 3px;
  margin-top: 22px;
  background: linear-gradient(90deg, var(--orange), var(--cyan));
}

.page-faq__lede {
  max-width: 62ch;
  margin-top: 20px;
  color: var(--mist);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.8;
}

.page-faq__stats {
  list-style: none;
  margin: clamp(28px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq__stat {
  background: var(--deep);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-faq__statvalue {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
}

.page-faq__statlabel {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ---------- 分类图形 ---------- */

.page-faq__directions {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq__map {
  position: relative;
  margin: 0 0 clamp(28px, 5vw, 48px);
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background:
    radial-gradient(circle at 34% 42%, rgba(41, 224, 210, .22), transparent 62%),
    linear-gradient(140deg, var(--navy), var(--abyss));
  clip-path: polygon(0 0, calc(100% - var(--cut-lg)) 0, 100% var(--cut-lg), 100% 100%, var(--cut-lg) 100%, 0 calc(100% - var(--cut-lg)));
}

.page-faq__map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-faq__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq__map .page-faq__caption {
  display: none;
}

/* ---------- 分段标签 ---------- */

.page-faq__tablist {
  display: flex;
  gap: 10px;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0 0 8px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq__tab {
  flex: 0 0 auto;
  min-width: 156px;
  scroll-snap-align: start;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num count";
  align-items: center;
  gap: 1px 10px;
  text-align: left;
  padding: 12px 16px;
  background: var(--navy);
  border: 0;
  color: var(--white);
  font-family: var(--font-ui);
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: background .22s var(--ease), color .22s var(--ease);
}

.page-faq__tabnum {
  grid-area: num;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 15px;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  transition: color .22s var(--ease);
}

.page-faq__tablabel {
  grid-area: label;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
}

.page-faq__tabcount {
  grid-area: count;
  font-size: 12px;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
  transition: color .22s var(--ease);
}

.page-faq__tab[aria-selected="true"] {
  background: var(--cyan);
  color: var(--abyss);
}

.page-faq__tab[aria-selected="true"] .page-faq__tabnum,
.page-faq__tab[aria-selected="true"] .page-faq__tabcount {
  color: var(--abyss);
}

.page-faq__tab:hover:not([aria-selected="true"]) {
  background: #1B4574;
}

.page-faq__tab:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 3px;
}

/* ---------- 问答折叠 ---------- */

.page-faq__panel {
  padding-top: 4px;
}

.page-faq .qa {
  position: relative;
  border-left: 2px solid var(--line);
  background: linear-gradient(90deg, var(--faq-soft), rgba(41, 224, 210, 0) 52%);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, var(--faq-soft-strong), rgba(41, 224, 210, 0) 64%);
}

.page-faq .qa__q {
  display: block;
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 52px 18px 18px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.6;
  color: var(--white);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q::before,
.page-faq .qa__q::after {
  content: "";
  position: absolute;
  top: 50%;
  background: var(--cyan);
  transition: transform .24s var(--ease);
}

.page-faq .qa__q::after {
  right: 18px;
  width: 14px;
  height: 2px;
  margin-top: -1px;
}

.page-faq .qa__q::before {
  right: 24px;
  width: 2px;
  height: 14px;
  margin-top: -7px;
}

.page-faq .qa__q:hover {
  color: var(--cyan-soft);
}

.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: -2px;
}

.page-faq .qa[open] .qa__q::before {
  transform: scaleY(0);
}

.page-faq .qa__body {
  padding: 0 20px 22px 18px;
  max-width: 66ch;
  color: var(--faq-text);
  font-size: 15px;
  line-height: 1.78;
}

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

.page-faq .qa__steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa__steps > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}

.page-faq .qa__steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.62;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.page-faq .qa__more {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .qa__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(41, 224, 210, .45);
  padding-bottom: 1px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa__more a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 兼容性图与表格 ---------- */

.page-faq__figure {
  margin: 0 0 clamp(24px, 4vw, 36px);
  overflow: hidden;
  background: linear-gradient(140deg, var(--navy), var(--abyss));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq__figure .page-faq__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.page-faq__matrixwrap {
  margin-top: clamp(24px, 4vw, 34px);
  overflow-x: auto;
  border: 1px solid var(--line);
  -webkit-overflow-scrolling: touch;
}

.page-faq__matrix {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq__matrixcap {
  text-align: left;
  padding: 14px 16px 12px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
  background: var(--abyss);
}

.page-faq__matrix th,
.page-faq__matrix td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}

.page-faq__matrix thead th {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 13px;
}

.page-faq__matrix tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq__matrix td {
  color: var(--faq-text);
}

.page-faq__matrix td:first-child {
  color: var(--white);
  font-weight: 500;
}

.page-faq .qa-st {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-ui);
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
}

.page-faq .qa-st::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: currentColor;
}

.page-faq .qa-st--ok {
  color: var(--cyan);
}

.page-faq .qa-st--warn {
  color: var(--orange);
}

.page-faq .qa-st--note {
  color: var(--mist);
}

/* ---------- 求助区 ---------- */

.page-faq__help {
  padding-top: clamp(32px, 6vw, 64px);
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-faq__helpcard {
  padding: clamp(24px, 4vw, 44px);
}

.page-faq__helpgrid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq__helptitle {
  margin: 12px 0 0;
  color: var(--white);
}

.page-faq__helptext {
  margin: 16px 0 0;
  max-width: 44ch;
  color: var(--faq-text);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq__helptext strong {
  color: var(--cyan);
  font-weight: 600;
  word-break: break-all;
}

.page-faq__helpcard .btn {
  margin-top: 24px;
}

.page-faq__checklabel {
  margin: 0 0 12px;
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-faq__checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-faq__checklist li {
  position: relative;
  background: var(--abyss);
  padding: 13px 16px 13px 42px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--faq-text);
}

.page-faq__checklist li::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 19px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--orange);
  transform: rotate(45deg);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq__stat {
    padding: 20px 18px;
  }
}

@media (min-width: 860px) {
  .page-faq__helpgrid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq__tablist {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__tab {
    min-width: 0;
  }

  .page-faq .qa__q {
    padding: 20px 56px 20px 22px;
  }

  .page-faq .qa__body {
    padding: 0 24px 24px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa,
  .page-faq .qa__q::before,
  .page-faq .qa__q::after,
  .page-faq__tab,
  .page-faq .qa__more a {
    transition: none;
  }
}