.page-faq {
  --faq-paper-line: rgba(20, 33, 28, 0.16);
  --faq-step-cut: 14px;
}

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

.page-faq .page-faq__crumb {
  padding-block: clamp(16px, 3vw, 30px) 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
  padding-block: clamp(26px, 4vw, 52px) clamp(34px, 6vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .faq-hero__lede {
  max-width: 34em;
  margin-bottom: 26px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 247, 242, 0.82);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__media {
  aspect-ratio: 5 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding-block: clamp(30px, 5vw, 64px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

.page-faq .faq-toc {
  align-self: start;
}

.page-faq .faq-toc__title {
  margin-bottom: 14px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--moss);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc__list a {
  position: relative;
  display: block;
  padding: 9px 0 9px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(243, 247, 242, 0.78);
  text-decoration: none;
}

.page-faq .faq-toc__list a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 14px;
  transform: translateY(-50%);
  background: var(--line-strong);
  transition: height 0.18s ease, background 0.18s ease;
}

.page-faq .faq-toc__list a:hover,
.page-faq .faq-toc__list a:focus-visible {
  color: var(--chalk);
}

.page-faq .faq-toc__list a:hover::before,
.page-faq .faq-toc__list a:focus-visible::before {
  height: 22px;
  background: var(--lime);
}

.page-faq .faq-toc__note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--moss);
  max-width: 22em;
}

@media (min-width: 1024px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 230px minmax(0, 1fr);
  }
  .page-faq .faq-toc {
    position: sticky;
    top: clamp(24px, 6vh, 72px);
  }
}

/* ---------- 分组 ---------- */
.page-faq .faq-group + .faq-group {
  margin-top: clamp(40px, 6vw, 76px);
}

.page-faq .faq-group__head {
  margin-bottom: 12px;
}

.page-faq .faq-group__index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-faq .faq-group__head h2 {
  margin: 8px 0 8px;
  font-size: clamp(21px, 2.8vw, 29px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .faq-group__head p {
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 242, 0.7);
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
  border-left: 1px solid transparent;
  padding-left: 16px;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item[open] {
  border-left-color: var(--lime);
  background: linear-gradient(90deg, rgba(201, 242, 76, 0.07), rgba(201, 242, 76, 0) 62%);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 6px 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--chalk);
  transition: color 0.18s ease;
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--moss);
  transition: color 0.18s ease;
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  color: var(--lime);
}

.page-faq .faq-item__q:hover {
  color: var(--lime);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-faq .faq-item__a {
  margin: 0;
  padding: 0 0 18px;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(243, 247, 242, 0.8);
}

/* ---------- 排查路径 ---------- */
.page-faq .trouble {
  padding-block: clamp(38px, 6vw, 78px);
  border-top: 1px solid var(--line);
}

.page-faq .trouble__head h2 {
  margin: 12px 0 10px;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .trouble__head p {
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 242, 0.72);
}

.page-faq .trouble__line {
  display: none;
}

.page-faq .trouble__steps {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .trouble__item {
  height: 100%;
  padding: 16px 16px 14px;
  background: var(--pitch-900);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-step-cut)), calc(100% - var(--faq-step-cut)) 100%, 0 100%);
  transition: border-color 0.18s ease;
}

.page-faq .trouble__item[open] {
  border-color: var(--line-strong);
}

.page-faq .trouble__summary {
  display: flex;
  align-items: baseline;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--chalk);
}

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

.page-faq .trouble__summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-faq .trouble__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-faq .trouble__item:last-child .trouble__num {
  color: var(--amber);
}

.page-faq .trouble__body {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(243, 247, 242, 0.76);
}

@media (min-width: 880px) {
  .page-faq .trouble__line {
    display: block;
    width: 100%;
    height: 88px;
    margin-top: clamp(20px, 3vw, 34px);
    margin-bottom: -12px;
  }
  .page-faq .trouble__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 统计说明卡 ---------- */
.page-faq .faq-caliber {
  padding-block: clamp(30px, 5vw, 60px);
}

.page-faq .caliber-card {
  padding: clamp(22px, 3.4vw, 46px) clamp(20px, 3.4vw, 46px) clamp(34px, 4.6vw, 58px);
  background: var(--paper);
  color: var(--ink-paper);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .caliber-card__tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: rgba(20, 33, 28, 0.62);
}

.page-faq .caliber-card h2 {
  margin: 10px 0 8px;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink-paper);
}

.page-faq .caliber-card__head p {
  max-width: 36em;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(20, 33, 28, 0.74);
}

.page-faq .caliber-card__figure {
  margin: clamp(20px, 3vw, 30px) 0 clamp(22px, 3vw, 32px);
}

.page-faq .caliber-card__media {
  aspect-ratio: 10 / 7;
  overflow: hidden;
  border: 1px solid var(--faq-paper-line);
}

.page-faq .caliber-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .caliber-list {
  margin: 0;
  display: grid;
}

.page-faq .caliber-row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--faq-paper-line);
}

.page-faq .caliber-row:last-child {
  border-bottom: 1px solid var(--faq-paper-line);
}

.page-faq .caliber-row dt {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-paper);
}

.page-faq .caliber-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(20, 33, 28, 0.78);
}

@media (min-width: 760px) {
  .page-faq .caliber-row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }
}

/* ---------- 联系收尾 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(38px, 6vw, 82px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-contact__lead h2 {
  margin: 12px 0 12px;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-faq .faq-contact__lead p {
  margin-bottom: 22px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(243, 247, 242, 0.78);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-contact__list li {
  padding-left: 16px;
  border-left: 2px solid var(--line-strong);
}

.page-faq .faq-contact__label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-faq .faq-contact__list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 242, 0.76);
}

.page-faq .faq-contact__channels {
  padding: clamp(20px, 3vw, 30px);
  background: var(--pitch-900);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-contact__mail {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.2vw, 19px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--chalk);
  word-break: break-all;
}

.page-faq .faq-contact__phone {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-faq .faq-contact__note {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(243, 247, 242, 0.7);
}

.page-faq .faq-contact__links {
  margin-top: 14px;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(243, 247, 242, 0.7);
}

.page-faq .faq-contact__links a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 242, 76, 0.4);
}

.page-faq .faq-contact__links a:hover,
.page-faq .faq-contact__links a:focus-visible {
  border-bottom-color: var(--lime);
}

@media (min-width: 940px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: 1.15fr 0.85fr;
    grid-template-areas:
      "lead list"
      "channels list";
    align-items: start;
  }
  .page-faq .faq-contact__lead {
    grid-area: lead;
  }
  .page-faq .faq-contact__list {
    grid-area: list;
  }
  .page-faq .faq-contact__channels {
    grid-area: channels;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after,
  .page-faq .faq-toc__list a::before,
  .page-faq .trouble__item {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>