.page-faq {
  --faq-line: rgba(62, 92, 112, .45);
  --faq-gap: 28px;
}

/* ---------- 首屏 ---------- */
.page-faq .page-faq__hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 28px) 0 52px;
  background:
    radial-gradient(115% 85% at 86% 0%, rgba(35, 224, 196, .16), transparent 62%),
    linear-gradient(165deg, var(--night) 0%, var(--night-2) 100%);
}

.page-faq .page-faq__hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: -14%;
  width: 56%;
  height: 100%;
  background: linear-gradient(125deg, rgba(35, 224, 196, .13), rgba(255, 138, 61, .07));
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-faq .page-faq__hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 60px;
  background: var(--night);
  clip-path: polygon(0 58%, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

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

.page-faq .page-faq__hero-cols {
  display: grid;
  gap: 32px;
  margin-top: 26px;
}

.page-faq .page-faq__hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-title);
  font-size: clamp(28px, 7.2vw, 50px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.025em;
  color: var(--white);
  max-width: 18ch;
}

.page-faq .page-faq__lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .page-faq__facts {
  align-self: start;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--glass-deep);
  backdrop-filter: blur(10px);
}

.page-faq .page-faq__facts-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .page-faq__facts-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .page-faq__facts-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .page-faq__facts-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .page-faq__facts-num {
  flex: 0 0 auto;
  min-width: 3.2em;
  font-size: 26px;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1.1;
}

.page-faq .page-faq__facts-txt {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.5;
}

.page-faq .page-faq__facts-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 分类总览 ---------- */
.page-faq .page-faq__cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .page-faq__cat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--cyan);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(13, 43, 63, .62), rgba(6, 24, 38, .72));
  color: inherit;
  text-decoration: none;
  transition: transform var(--ease), border-color var(--ease), background var(--ease);
}

.page-faq .page-faq__cat:hover,
.page-faq .page-faq__cat:focus-visible {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-faq .page-faq__cat-num {
  font-size: 30px;
  font-weight: 600;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .page-faq__cat-num small {
  margin-left: 3px;
  font-size: 12px;
  color: var(--slate);
}

.page-faq .page-faq__cat-name {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .page-faq__cat-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 筛选 ---------- */
.page-faq .page-faq__filter-wrap {
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}

/* ---------- 问题分组 ---------- */
.page-faq .page-faq__groups {
  counter-reset: faqgroup;
  display: grid;
  gap: 44px;
}

.page-faq .page-faq__group {
  counter-increment: faqgroup;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .page-faq__group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .page-faq__group-num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-faq .page-faq__group-num::before {
  content: "0" counter(faqgroup);
}

.page-faq .page-faq__group-title {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(19px, 4.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .page-faq__group-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}

.page-faq .page-faq__group-lede {
  margin: 14px 0 6px;
  max-width: 68ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 折叠问答 ---------- */
.page-faq .page-faq__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .page-faq__q {
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--ease);
}

.page-faq .page-faq__q[open] {
  background: linear-gradient(90deg, rgba(35, 224, 196, .05), transparent 70%);
}

.page-faq .page-faq__q > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: -.005em;
  color: var(--white);
  transition: color var(--ease);
}

.page-faq .page-faq__q > summary::-webkit-details-marker {
  display: none;
}

.page-faq .page-faq__q > summary:hover {
  color: var(--cyan);
}

.page-faq .page-faq__q > summary::before {
  content: "+";
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--cyan);
  border: 1px solid var(--steel);
  border-radius: 50%;
  transition: transform var(--ease), border-color var(--ease);
}

.page-faq .page-faq__q[open] > summary::before {
  content: "\2212";
  border-color: var(--cyan);
  transform: rotate(180deg);
}

.page-faq .page-faq__a {
  padding: 0 4px 22px 36px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .page-faq__a p {
  margin: 0;
  max-width: 70ch;
}

.page-faq .page-faq__a strong {
  font-weight: 700;
  color: var(--cyan);
}

/* ---------- 图与流程 ---------- */
.page-faq .page-faq__figure {
  margin: 20px 0 10px;
}

.page-faq .page-faq__figure .media {
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-faq .page-faq__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .page-faq__figure--wide .media {
  max-width: 620px;
}

.page-faq .page-faq__figure--square .media {
  max-width: 320px;
}

.page-faq .page-faq__figure figcaption {
  margin-top: 10px;
  max-width: 56ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .page-faq__flow {
  margin: 22px 0 8px;
  padding: 18px 16px 14px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(3, 9, 14, .5);
}

.page-faq .page-faq__flow-svg {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
}

.page-faq .page-faq__flow figcaption {
  margin-top: 12px;
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 联系方式块 ---------- */
.page-faq .page-faq__contact {
  margin-top: 22px;
  padding: 20px 18px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--orange);
  border-radius: var(--r-md);
  background: rgba(13, 43, 63, .55);
}

.page-faq .page-faq__contact-title {
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 800;
  color: var(--white);
}

.page-faq .page-faq__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .page-faq__contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}

.page-faq .page-faq__contact-label {
  flex: 0 0 5.5em;
  color: var(--slate);
}

.page-faq .page-faq__contact-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 底部跳转 ---------- */
.page-faq .page-faq__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-faq .page-faq__link {
  display: inline-block;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.page-faq .page-faq__link:hover,
.page-faq .page-faq__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(35, 224, 196, .08);
  color: var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .page-faq__cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .page-faq__group-lede {
    font-size: 15px;
  }
}

@media (min-width: 900px) {
  .page-faq .page-faq__hero {
    padding: calc(var(--header-h) + 40px) 0 68px;
  }

  .page-faq .page-faq__hero-cols {
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, .85fr);
    gap: 48px;
    align-items: start;
    margin-top: 34px;
  }

  .page-faq .page-faq__facts {
    margin-top: 12px;
  }

  .page-faq .page-faq__cats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-faq .page-faq__groups {
    gap: 56px;
  }

  .page-faq .page-faq__q > summary {
    font-size: 17px;
  }

  .page-faq .page-faq__figure--square {
    float: right;
    width: 300px;
    margin: 6px 0 16px 32px;
  }
}

@media (min-width: 1180px) {
  .page-faq .page-faq__group-lede {
    font-size: 15.5px;
  }
}