/* ===== 支持中心 /support/ ===== */
.page-faq {
  --faq-index-w: 244px;
  --faq-leaf-soft: rgba(156, 201, 168, 0.2);
  --faq-gold-soft: rgba(224, 165, 38, 0.14);
  background: var(--warm);
  color: var(--ink);
  padding-top: var(--header-h);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5.4vw, 70px) 0 clamp(28px, 4.4vw, 52px);
  border-bottom: 1px solid var(--paper);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--paper) 1px, transparent 1px),
    linear-gradient(to bottom, var(--paper) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.45;
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
}

.page-faq .faq-hero .display {
  margin: 10px 0 0;
  font-size: clamp(38px, 8vw, 100px);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: -0.02em;
  font-stretch: 96%;
  max-width: 12em;
}

.page-faq .faq-hero .display em {
  font-style: normal;
  box-shadow: inset 0 -0.13em 0 var(--gold);
}

.page-faq .faq-hero .lede {
  margin: clamp(16px, 2.2vw, 26px) 0 0;
  max-width: 50ch;
  font-size: clamp(15px, 1.45vw, 17px);
  line-height: 1.85;
}

.page-faq .hero-side .side-note {
  margin: 0;
  padding-top: 12px;
  border-top: 2px solid var(--gold);
  max-width: 30ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink);
}

@media (min-width: 900px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    align-items: end;
  }
  .page-faq .hero-side {
    padding-bottom: 10px;
  }
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-fix {
  padding: clamp(36px, 5.6vw, 68px) 0;
  border-bottom: 1px solid var(--paper);
}

.page-faq .fix-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  max-width: 20em;
}

.page-faq .fix-lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq .fix-figure {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

.page-faq .fix-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--paper);
}

.page-faq .fix-steps {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-faq .fix-step {
  position: relative;
  padding: 18px 18px 18px 22px;
  border-left: 1px solid var(--paper);
}

.page-faq .fix-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: -1px;
  width: 12px;
  height: 12px;
  background: var(--warm);
  border: 1px solid var(--cabbage);
}

.page-faq .fix-step::after {
  content: "";
  position: absolute;
  top: 5px;
  left: 4px;
  width: 4px;
  height: 4px;
  background: var(--gold);
}

.page-faq .step-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.page-faq .step-title {
  margin: 8px 0 8px;
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .step-body {
  margin: 0 0 10px;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .step-check {
  margin: 0;
  padding: 9px 12px;
  background: var(--faq-leaf-soft);
  font-size: 13px;
  line-height: 1.7;
}

@media (min-width: 780px) {
  .page-faq .fix-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 问答主体 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 4.6vw, 58px) 0 clamp(20px, 3vw, 36px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 46px);
}

@media (min-width: 940px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }
}

/* 左侧折角书签索引 */
.page-faq .faq-index {
  align-self: start;
  background: var(--card);
  border-left: 3px solid var(--gold);
  border-top: 1px solid var(--paper);
  border-right: 1px solid var(--paper);
  border-bottom: 1px solid var(--paper);
}

.page-faq .index-title {
  margin: 0;
  padding: 13px 16px 11px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
  border-bottom: 1px solid var(--paper);
}

.page-faq .index-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
}

.page-faq .index-list > li + li {
  border-top: 1px solid var(--paper);
}

.page-faq .index-link {
  position: relative;
  display: block;
  padding: 12px 22px 12px 16px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .index-link::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 10px 10px 0;
  border-color: transparent var(--warm) transparent transparent;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-faq .index-link:hover,
.page-faq .index-link:focus-visible {
  background: var(--faq-gold-soft);
  color: var(--gold-deep);
  padding-left: 22px;
}

.page-faq .index-link:hover::after,
.page-faq .index-link:focus-visible::after {
  opacity: 1;
}

/* 问答分组 */
.page-faq .faq-group {
  margin-bottom: clamp(30px, 4vw, 54px);
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink-green);
}

.page-faq .group-no {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
}

.page-faq .group-title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-faq .group-head .tag {
  margin-left: auto;
}

/* 手风琴条目 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--paper);
}

.page-faq .faq-item > summary {
  position: relative;
  display: block;
  cursor: pointer;
  list-style: none;
  padding: 17px 46px 17px 0;
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

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

.page-faq .faq-item > summary::after {
  content: "";
  position: absolute;
  right: 10px;
  top: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  background:
    linear-gradient(var(--cabbage), var(--cabbage)) center / 14px 1px no-repeat,
    linear-gradient(var(--cabbage), var(--cabbage)) center / 1px 14px no-repeat;
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  background: linear-gradient(var(--gold), var(--gold)) center / 14px 1px no-repeat;
}

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--gold-deep);
  padding-left: 8px;
}

.page-faq .faq-answer {
  padding: 2px 0 22px;
}

.page-faq .answer-act {
  margin: 0 0 12px;
  padding: 2px 0 2px 16px;
  border-left: 3px solid var(--gold);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .answer-note {
  margin: 0;
  padding: 12px 16px;
  background: var(--faq-leaf-soft);
  border-left: 3px solid var(--leaf);
  font-size: 14px;
  line-height: 1.78;
}

/* ---------- 小词典 ---------- */
.page-faq .faq-glossary {
  padding: clamp(30px, 4.4vw, 58px) 0;
  border-top: 1px solid var(--paper);
  border-bottom: 1px solid var(--paper);
  background:
    linear-gradient(90deg, var(--faq-leaf-soft) 0 4px, transparent 4px);
}

.page-faq .gloss-title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.6vw, 32px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 22em;
}

.page-faq .glossary {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .gloss-card {
  flex: 1 1 220px;
  min-width: 0;
  padding: 14px 16px 16px;
  background: var(--card);
  border: 1px solid var(--paper);
  border-top: 2px solid var(--cabbage);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .gloss-card:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-faq .gloss-term {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cabbage);
}

.page-faq .gloss-def {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
}

/* ---------- 联系收束 ---------- */
.page-faq .faq-reach {
  background: var(--ink-green);
  color: var(--warm);
  padding: clamp(34px, 4.6vw, 62px) 0;
}

.page-faq .reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
}

@media (min-width: 860px) {
  .page-faq .reach-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

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

.page-faq .reach-title {
  margin: 10px 0 0;
  font-size: clamp(22px, 2.8vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--warm);
  max-width: 18em;
}

.page-faq .reach-body {
  margin: 14px 0 22px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--leaf);
}

.page-faq .reach-meta {
  margin: 0;
  display: grid;
  gap: 14px;
}

.page-faq .reach-item {
  padding: 12px 0 12px 16px;
  border-left: 1px solid rgba(156, 201, 168, 0.45);
}

.page-faq .reach-item dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 6px;
}

.page-faq .reach-item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--warm);
  word-break: break-word;
}

/* ---------- 底部纹样 ---------- */
.page-faq .faq-texture {
  margin: 0;
  line-height: 0;
}

.page-faq .faq-texture img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 320px;
  object-fit: cover;
}

/* ---------- 焦点与动效收敛 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}

.page-faq [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .index-link,
  .page-faq .gloss-card,
  .page-faq .faq-item > summary {
    transition: none;
  }
}

@media (max-width: 480px) {
  .page-faq .group-head .tag {
    margin-left: 0;
  }
  .page-faq .index-link {
    padding-right: 16px;
  }
}