.page-faq {
  --faq-cut: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(36px, 6vw, 76px);
  background: var(--cream);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -12%;
  right: -14%;
  width: 62%;
  height: 96%;
  background: linear-gradient(142deg, rgba(122, 18, 28, .13), rgba(212, 160, 60, .10) 52%, rgba(27, 58, 107, .06) 78%, transparent 90%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 74%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--pomegranate);
  text-transform: none;
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-family: var(--f-head);
  font-weight: 900;
  letter-spacing: -.01em;
  font-size: clamp(29px, 5.4vw, 58px);
  line-height: 1.14;
  color: var(--ink);
  max-width: 20ch;
}

.page-faq .faq-hero__text {
  margin: 0 0 22px;
  font-family: var(--f-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--ink);
  max-width: 40em;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .faq-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__figure {
  margin: 0;
  clip-path: var(--faq-cut);
  border: 1px solid rgba(78, 12, 20, .16);
}

/* ============ 分类九宫格 ============ */
.page-faq .faq-cats {
  background: var(--paper);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-faq .faq-cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 18px 18px 16px;
  background: var(--cream);
  border: 1px solid rgba(78, 12, 20, .14);
  border-left: 3px solid var(--gold);
  border-radius: var(--r);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-1);
  background: var(--paper);
  border-left-color: var(--pomegranate);
}

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

.page-faq .faq-cat__name {
  margin: 0 0 6px;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -.01em;
  color: var(--deep-red);
}

.page-faq .faq-cat__desc {
  margin: 0 0 auto;
  font-family: var(--f-body);
  font-size: 13px;
  line-height: 1.65;
  color: var(--taupe);
}

.page-faq .faq-cat__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 0;
  padding-top: 10px;
  border-top: 1px solid rgba(78, 12, 20, .12);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .faq-cat__count {
  color: var(--blue);
  font-weight: 700;
}

.page-faq .faq-cat__date {
  color: var(--jade);
  margin-left: auto;
}

/* ============ 高频场景 ============ */
.page-faq .faq-scenes {
  background: var(--cream);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-faq .faq-scenes__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(78, 12, 20, .18);
}

.page-faq .faq-scenes__list > li {
  border-bottom: 1px solid rgba(78, 12, 20, .18);
}

.page-faq .faq-scene {
  background: transparent;
}

.page-faq .faq-scene__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur) var(--ease);
}

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

.page-faq .faq-scene__head:hover {
  background: rgba(212, 160, 60, .12);
}

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

.page-faq .faq-scene__no {
  flex: none;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--pomegranate);
}

.page-faq .faq-scene__q {
  font-family: var(--f-body);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-scene__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--f-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-scene[open] .faq-scene__head::after {
  content: "−";
  color: var(--pomegranate);
}

.page-faq .faq-scene__body {
  padding: 0 4px 16px 30px;
}

.page-faq .faq-scene__body p {
  margin: 0;
  max-width: 62ch;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--taupe);
}

/* ============ 三步自查（深色区） ============ */
.page-faq .faq-steps {
  background: var(--deep-red);
  color: var(--cream);
  padding-top: clamp(40px, 5.4vw, 72px);
  padding-bottom: clamp(40px, 5.4vw, 72px);
}

.page-faq .faq-steps .section-head__index {
  color: var(--gold-light);
}

.page-faq .faq-steps .section-head__title {
  color: var(--cream);
}

.page-faq .faq-steps .section-head__note {
  color: rgba(246, 240, 228, .78);
}

.page-faq .faq-steps__list {
  margin: 0 0 0 13px;
  padding: 0 0 0 26px;
  list-style: none;
  border-left: 2px solid rgba(212, 160, 60, .5);
}

.page-faq .faq-step {
  position: relative;
  padding-bottom: 30px;
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step__no {
  position: absolute;
  left: -40px;
  top: -2px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: var(--edge);
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--gold-light);
}

.page-faq .faq-step__text {
  margin: 0;
  max-width: 56ch;
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 240, 228, .86);
}

/* ============ 反馈流程 ============ */
.page-faq .faq-feedback {
  background: var(--paper);
  padding-top: clamp(38px, 5vw, 68px);
  padding-bottom: clamp(38px, 5vw, 68px);
}

.page-faq .faq-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-faq .faq-feedback__steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-fbstep {
  position: relative;
  padding: 0 0 20px 42px;
}

.page-faq .faq-fbstep:last-child {
  padding-bottom: 0;
}

.page-faq .faq-fbstep__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--r);
  background: var(--cream);
  border: 1px solid var(--gold);
  color: var(--deep-red);
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-fbstep__title {
  margin: 0 0 6px;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-fbstep__text {
  margin: 0;
  max-width: 40em;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.75;
  color: var(--taupe);
}

.page-faq .faq-feedback__figure {
  margin: 0;
  clip-path: var(--faq-cut);
  border: 1px solid rgba(78, 12, 20, .16);
}

/* ============ 响应时间 ============ */
.page-faq .faq-response {
  background: var(--cream);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-faq .faq-response__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(78, 12, 20, .16);
  border: 1px solid rgba(78, 12, 20, .16);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 16px;
  background: var(--paper);
}

.page-faq .faq-stat__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: clamp(22px, 3.2vw, 32px);
  letter-spacing: .02em;
  color: var(--deep-red);
  line-height: 1.1;
}

.page-faq .faq-stat:nth-child(2) .faq-stat__num {
  color: var(--blue);
}

.page-faq .faq-stat:nth-child(4) .faq-stat__num {
  color: var(--jade);
}

.page-faq .faq-stat__label {
  font-family: var(--f-body);
  font-size: 13px;
  line-height: 1.6;
  color: var(--taupe);
}

.page-faq .faq-response__note {
  margin: 20px 0 0;
  max-width: 52em;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.8;
  color: var(--taupe);
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}

/* ============ 人工协助 ============ */
.page-faq .faq-assist {
  background: var(--deep-red);
  color: var(--cream);
  padding-top: clamp(38px, 5vw, 68px);
  padding-bottom: clamp(38px, 5vw, 68px);
}

.page-faq .faq-assist__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-assist__title {
  margin: 0 0 14px;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-faq .faq-assist__text {
  margin: 0 0 20px;
  max-width: 42em;
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 240, 228, .84);
}

.page-faq .faq-assist__channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-channel {
  padding: 20px 18px;
  background: rgba(246, 240, 228, .06);
  border: 1px solid rgba(212, 160, 60, .42);
  border-radius: var(--r);
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-channel:hover {
  background: rgba(246, 240, 228, .11);
  transform: translateY(-2px);
}

.page-faq .faq-channel__label {
  display: block;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--gold-light);
  margin-bottom: 8px;
}

.page-faq .faq-channel__val {
  margin: 0 0 14px;
  font-family: var(--f-mono);
  font-size: clamp(15px, 1.9vw, 18px);
  letter-spacing: .01em;
  color: var(--cream);
  word-break: break-all;
}

.page-faq .faq-channel .copy-chip {
  color: var(--gold-light);
  border-color: rgba(212, 160, 60, .6);
}

/* ============ 内容维护 ============ */
.page-faq .faq-maintain {
  background: var(--cream);
  padding-top: clamp(36px, 5vw, 64px);
  padding-bottom: clamp(30px, 4vw, 52px);
}

.page-faq .faq-maintain__inner {
  max-width: 68em;
}

.page-faq .faq-maintain__title {
  margin: 0 0 14px;
  font-family: var(--f-head);
  font-weight: 900;
  font-size: clamp(21px, 2.9vw, 30px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-maintain__text {
  margin: 0 0 22px;
  max-width: 46em;
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.8;
  color: var(--taupe);
}

.page-faq .faq-maintain__list {
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-faq .faq-maintain__list li {
  position: relative;
  padding-left: 20px;
  font-family: var(--f-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-maintain__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--gold);
}

.page-faq .faq-maintain__list strong {
  font-family: var(--f-mono);
  font-weight: 700;
  color: var(--deep-red);
  letter-spacing: .02em;
}

.page-faq .faq-maintain__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.page-faq .faq-maintain .hairline {
  margin: 0;
}

/* ============ 断点 ============ */
@media (min-width: 640px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-assist__channels {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-maintain__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 1.05fr .95fr;
  }

  .page-faq .faq-feedback__grid {
    grid-template-columns: 1.1fr .9fr;
  }

  .page-faq .faq-assist__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-response__stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-cats__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 14px;
  }

  .page-faq .faq-cat--s2 {
    grid-column: span 2;
  }

  .page-faq .faq-cat--s3 {
    grid-column: span 3;
  }

  .page-faq .faq-cat--s4 {
    grid-column: span 4;
  }

  .page-faq .faq-cat {
    min-height: 168px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-cat,
  .page-faq .faq-channel,
  .page-faq .faq-scene__head {
    transition: none;
  }

  .page-faq .faq-cat:hover,
  .page-faq .faq-cat:focus-visible,
  .page-faq .faq-channel:hover {
    transform: none;
  }
}