.page-faq {
  --faq-shadow: 0 20px 44px -28px rgba(11, 42, 74, .5);
  background: var(--mother);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- Hero ---------- */

.page-faq .faq-hero {
  position: relative;
  background: var(--grad-tide);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
  padding: 26px 0 76px;
  color: var(--mother);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: 14%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(143, 216, 206, .4), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 26px;
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--on-deep);
}

.page-faq .faq-hero .breadcrumb li {
  color: var(--on-deep-dim);
}

.page-faq .faq-hero .eyebrow {
  color: var(--celadon-light);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(29px, 6.6vw, 50px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: .015em;
  color: var(--paper);
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--on-deep);
}

.page-faq .hero-chips {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .hero-chips .chip {
  background: rgba(255, 253, 248, .12);
  border: 1px solid rgba(244, 241, 232, .32);
  color: var(--mother);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 6px 12px;
}

.page-faq .hero-chips .chip--coral {
  border-color: rgba(255, 107, 61, .7);
  color: #FFD9CB;
}

.page-faq .hero-chips .chip--celadon {
  border-color: rgba(143, 216, 206, .6);
  color: var(--celadon-light);
}

/* ---------- 通用区块 ---------- */

.page-faq .faq-section {
  padding: 48px 0;
}

.page-faq .faq-section--tint {
  background: var(--paper);
}

.page-faq .section-head {
  max-width: 62ch;
  margin-bottom: 26px;
}

.page-faq .section-title {
  margin: 10px 0 0;
  font-size: clamp(22px, 4.4vw, 31px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: .01em;
}

.page-faq .section-sub {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(28, 26, 24, .74);
}

/* ---------- 步骤卡 ---------- */

.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .step-card {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  background: var(--paper);
  padding: 20px 20px 20px 22px;
  clip-path: polygon(0 0, calc(100% - var(--cut-size)) 0, 100% var(--cut-size), 100% 100%, 0 100%);
}

.page-faq .faq-section--tint .step-card {
  background: var(--mother);
}

.page-faq .step-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 4px;
  background: var(--mist);
  transform: skewY(-8deg);
  transition: background .18s ease;
}

.page-faq .step-card:hover::after {
  background: var(--coral);
}

.page-faq .step-index {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 32px;
  line-height: 1;
  font-weight: 700;
  color: var(--coral);
}

.page-faq .step-title {
  margin: 4px 0 8px;
  font-size: 17.5px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .01em;
}

.page-faq .step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(28, 26, 24, .8);
}

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

.page-faq .step-sum {
  display: inline-block;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--celadon);
  border-bottom: 1px dashed rgba(46, 158, 143, .55);
  padding-bottom: 2px;
}

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

.page-faq .step-sum::after {
  content: " +";
}

.page-faq .step-more[open] .step-sum::after {
  content: " \2212";
}

.page-faq .step-detail {
  margin: 12px 0 0;
  padding: 12px 14px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(28, 26, 24, .78);
  background: rgba(143, 216, 206, .16);
  border-left: 3px solid var(--celadon-light);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--celadon);
  outline-offset: 3px;
}

/* ---------- 设备区块 ---------- */

.page-faq .device-grid {
  display: grid;
  gap: 22px;
}

.page-faq .device-figure {
  margin: 0;
  background: var(--paper);
  padding: 14px 14px 16px;
  clip-path: polygon(0 0, calc(100% - var(--cut-size)) 0, 100% var(--cut-size), 100% 100%, 0 100%);
}

.page-faq .faq-section--tint .device-figure {
  background: var(--mother);
}

.page-faq .device-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 4;
  background: var(--mother);
}

.page-faq .device-figure figcaption,
.page-faq .flow-figure figcaption {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(28, 26, 24, .68);
}

/* ---------- 流程示意 ---------- */

.page-faq .faq-flow {
  padding: 8px 0 0;
}

.page-faq .flow-figure {
  margin: 0;
  background: var(--paper);
  padding: 16px 16px 18px;
  clip-path: polygon(0 0, calc(100% - var(--cut-size)) 0, 100% var(--cut-size), 100% 100%, 0 100%);
}

.page-faq .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 4;
  background: var(--mother);
}

/* ---------- 导出格式 ---------- */

.page-faq .export-formats {
  display: grid;
  gap: 18px;
}

.page-faq .format-card {
  position: relative;
  background: var(--paper);
  padding: 24px 22px 26px;
  clip-path: polygon(0 0, calc(100% - var(--cut-size)) 0, 100% var(--cut-size), 100% 100%, 0 100%);
}

.page-faq .format-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 64px;
  height: 3px;
  background: var(--celadon);
}

.page-faq .format-name {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--tide);
}

.page-faq .format-desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(28, 26, 24, .8);
}

.page-faq .field-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 10px;
}

.page-faq .field-list li {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(28, 26, 24, .74);
}

.page-faq .field-key {
  display: inline-block;
  min-width: 76px;
  margin-right: 10px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--tide);
  border-bottom: 1px solid var(--line);
}

.page-faq .field-list--plain li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 10px;
  border-radius: 50%;
  background: var(--celadon-light);
  vertical-align: middle;
}

.page-faq .export-note {
  margin: 26px 0 0;
  padding: 18px 20px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(28, 26, 24, .8);
  background: rgba(30, 91, 143, .07);
  border-left: 3px solid var(--tide);
}

.page-faq .export-note a {
  color: var(--coral-deep);
  border-bottom: 1px solid rgba(228, 87, 46, .45);
}

/* ---------- 排查清单 ---------- */

.page-faq .fix-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .fix-list::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 30px;
  bottom: 30px;
  width: 2px;
  background: repeating-linear-gradient(180deg, var(--celadon-light) 0 6px, transparent 6px 13px);
  transform: skewX(-6deg);
}

.page-faq .fix-item {
  position: relative;
  padding: 22px 0 22px 30px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .fix-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .fix-dot {
  position: absolute;
  left: 1px;
  top: 30px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--celadon);
  box-shadow: 0 0 0 4px rgba(46, 158, 143, .16);
}

.page-faq .fix-title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .fix-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(28, 26, 24, .78);
}

/* ---------- 咨询面板 ---------- */

.page-faq .ask-panel {
  display: grid;
  gap: 30px;
  background: var(--deep);
  color: var(--mother);
  padding: 28px 22px 32px;
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-faq .ask-copy .eyebrow {
  color: var(--celadon-light);
}

.page-faq .ask-copy .section-title {
  color: var(--paper);
}

.page-faq .ask-lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--on-deep);
}

.page-faq .ask-prep {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .ask-prep li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--on-deep);
}

.page-faq .ask-prep li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon);
}

.page-faq .ask-contact {
  border-top: 1px solid rgba(244, 241, 232, .2);
  padding-top: 22px;
}

.page-faq .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .contact-row {
  padding: 14px 0;
  border-bottom: 1px solid rgba(244, 241, 232, .14);
}

.page-faq .contact-row:first-child {
  padding-top: 0;
}

.page-faq .contact-key {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--celadon-light);
}

.page-faq .contact-val {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .contact-val a {
  color: var(--paper);
  border-bottom: 1px solid rgba(244, 241, 232, .38);
}

.page-faq .ask-hint {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--on-deep-dim);
}

.page-faq .ask-hint a {
  color: var(--celadon-light);
  border-bottom: 1px solid rgba(143, 216, 206, .5);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-section {
    padding: 66px 0;
  }

  .page-faq .step-card {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 22px;
    padding: 26px 28px 26px 30px;
  }

  .page-faq .step-card::after {
    top: 26px;
    bottom: 26px;
  }

  .page-faq .step-index {
    font-size: 48px;
  }

  .page-faq .step-title {
    margin-top: 2px;
    font-size: 19px;
  }

  .page-faq .step-text,
  .page-faq .fix-body p {
    font-size: 15.5px;
  }

  .page-faq .export-formats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .ask-panel {
    padding: 40px 38px 44px;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero {
    padding: 34px 0 104px;
  }

  .page-faq .device-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .ask-panel {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: 52px;
  }

  .page-faq .ask-contact {
    border-top: 0;
    border-left: 1px solid rgba(244, 241, 232, .2);
    padding-top: 0;
    padding-left: 30px;
  }

  .page-faq .export-note {
    max-width: 78ch;
  }
}