/* ===== 问题排查页 ===== */
.page-faq {
  background: var(--almond);
  color: var(--board);
  font-family: var(--font-body);
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 34px) 0 clamp(28px, 5vw, 48px);
  border-bottom: 3px solid var(--ink);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .55;
  pointer-events: none;
}

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

.page-faq .breadcrumb {
  margin: 0 0 26px;
  font-size: var(--fs-1);
}

.page-faq .breadcrumb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--gray);
}

.page-faq .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-faq .breadcrumb__list a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-faq .breadcrumb__list a:hover {
  color: var(--apricot-deep);
  border-bottom-color: var(--apricot);
}

.page-faq .eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 10px;
  background: var(--ink);
  color: var(--almond);
  font-family: var(--font-cond);
  font-size: var(--fs-1);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-faq h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.05rem, 6.4vw, 4.1rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .lede {
  max-width: 62ch;
  margin: 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 32px 0 0;
  padding: 20px 0 0;
  border-top: 3px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 12px;
}

.page-faq .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.2vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
}

.page-faq .stat__value small {
  font-size: .45em;
  margin-left: 3px;
  color: var(--apricot-deep);
}

.page-faq .stat__label {
  display: block;
  font-size: var(--fs-1);
  letter-spacing: .04em;
  color: var(--gray);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-scene {
  padding: clamp(34px, 5vw, 60px) 0;
}

.page-faq .faq-scene + .faq-scene {
  border-top: 1px solid var(--line);
}

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

.page-faq .section__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--apricot);
  letter-spacing: -.02em;
  margin-bottom: 10px;
}

.page-faq .section__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.4rem, 3.6vw, 2.05rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .section__sub {
  max-width: 64ch;
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 01 场景分流 ---------- */
.page-faq .faq-dispatch {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 3px solid var(--ink);
}

.page-faq .faq-dispatch__row {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-dispatch__row a {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 15px 12px;
  text-decoration: none;
  color: var(--ink);
  transition: background-color .18s ease, transform .18s ease;
}

.page-faq .faq-dispatch__row a:hover {
  background: var(--sand);
  transform: translateX(4px);
}

.page-faq .faq-dispatch__num {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--apricot-deep);
}

.page-faq .faq-dispatch__sym {
  font-size: var(--fs-2);
  font-weight: 500;
  line-height: 1.55;
}

.page-faq .faq-dispatch__go {
  flex: 0 0 auto;
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-cond);
  font-size: var(--fs-1);
  letter-spacing: .1em;
  color: var(--gray);
  white-space: nowrap;
}

/* ---------- 图片 ---------- */
.page-faq .media {
  position: relative;
  margin: 0;
  border: var(--bd);
  box-shadow: var(--shadow-hard);
  background: var(--ink);
  overflow: hidden;
  max-width: 100%;
}

.page-faq .media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.92) contrast(1.04);
}

.page-faq .media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(242, 140, 40, .26), rgba(31, 61, 43, .2));
  pointer-events: none;
  z-index: 1;
}

.page-faq .media__caption {
  position: relative;
  z-index: 2;
  margin: 0;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--almond);
  font-size: var(--fs-1);
  letter-spacing: .02em;
}

.page-faq .faq-flow {
  margin-top: 30px;
}

/* ---------- 左右骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
}

.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-cond);
  font-size: var(--fs-1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-faq .faq-index .anchor-nav {
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index .anchor-nav__link {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  font-size: var(--fs-2);
  white-space: nowrap;
  transition: background-color .18s ease, border-color .18s ease;
}

.page-faq .faq-index .anchor-nav__link::before {
  content: "";
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--line);
  transition: background-color .2s ease;
}

.page-faq .faq-index .anchor-nav__link.is-active {
  background: var(--sand);
  border-color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-index .anchor-nav__link.is-active::before {
  background: var(--cyan);
}

/* ---------- 诊断条目 ---------- */
.page-faq .faq-scene__items {
  min-width: 0;
}

.page-faq .faq-item {
  background: var(--almond);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ink);
  margin-bottom: 12px;
  transition: border-left-width .18s ease, border-left-color .18s ease, box-shadow .18s ease;
}

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

.page-faq .faq-item[open] {
  border-left-width: 11px;
  border-left-color: var(--apricot);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item__head:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--apricot-deep);
}

.page-faq .faq-item__title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: var(--fs-3);
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid var(--ink);
  background: var(--sand);
  transition: background-color .18s ease;
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--ink);
}

.page-faq .faq-item__mark::before {
  width: 10px;
  height: 2px;
}

.page-faq .faq-item__mark::after {
  width: 2px;
  height: 10px;
  transition: transform .2s ease, opacity .2s ease;
}

.page-faq .faq-item[open] .faq-item__mark {
  background: var(--apricot);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-item__body {
  padding: 0 16px 20px;
  transition: padding-left .18s ease;
}

.page-faq .faq-item[open] .faq-item__body {
  padding-left: 24px;
}

.page-faq .faq-item__body > p {
  margin: 0 0 16px;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 排查步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: faqstep;
}

.page-faq .faq-steps > li {
  position: relative;
  counter-increment: faqstep;
  padding: 0 0 16px 46px;
}

.page-faq .faq-steps > li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-steps > li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--ink);
  transition: color .2s ease;
}

.page-faq .faq-steps > li::after {
  content: "";
  position: absolute;
  left: 26px;
  top: 11px;
  width: 10px;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-steps > li:last-child::after {
  display: none;
}

.page-faq .faq-step {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.page-faq .faq-step__check {
  appearance: none;
  -webkit-appearance: none;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin: 3px 0 0;
  border: 2px solid var(--ink);
  background: var(--almond);
  position: relative;
  cursor: pointer;
  transition: background-color .18s ease;
}

.page-faq .faq-step__check:checked {
  background: var(--cyan);
}

.page-faq .faq-step__check:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--board);
  border-bottom: 2px solid var(--board);
  transform: rotate(45deg);
}

.page-faq .faq-step__check:focus-visible {
  outline: 3px solid var(--cyan-deep);
  outline-offset: 2px;
}

.page-faq .faq-step__text {
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--ink-soft);
  transition: color .2s ease;
}

.page-faq .faq-step__text a {
  color: var(--apricot-deep);
  text-decoration: none;
  border-bottom: 2px solid var(--apricot);
}

.page-faq .faq-step__text a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.page-faq .faq-steps > li:has(.faq-step__check:checked)::before {
  color: var(--gray);
}

.page-faq .faq-steps > li:has(.faq-step__check:checked) .faq-step__text {
  color: var(--gray);
  text-decoration: line-through;
  text-decoration-color: var(--line);
  text-decoration-thickness: 1px;
}

/* ---------- 下载状态对照 ---------- */
.page-faq .faq-status {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.page-faq .faq-status__cell {
  border: var(--bd);
  padding: 16px 18px;
  min-width: 0;
}

.page-faq .faq-status__name {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-faq .faq-status__cell p {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.65;
}

.page-faq .faq-status__cell--done {
  background: var(--cyan);
  color: var(--board);
}

.page-faq .faq-status__cell--doing {
  background: var(--apricot);
  color: var(--board);
  animation: faq-breathe 1.6s ease-in-out infinite;
}

.page-faq .faq-status__cell--gone {
  background: var(--ochre);
  color: var(--almond);
}

@keyframes faq-breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: .62; }
}

/* ---------- 人工介入 ---------- */
.page-faq .faq-human {
  margin: clamp(30px, 5vw, 56px) 0 clamp(34px, 5vw, 60px);
  padding: clamp(22px, 4vw, 38px);
  background: var(--ink);
  color: var(--almond);
  border: var(--bd);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-human.section {
  padding-top: clamp(22px, 4vw, 38px);
  border-top: var(--bd);
}

.page-faq .faq-human .section__num {
  color: var(--cyan);
}

.page-faq .faq-human .section__title {
  color: var(--almond);
}

.page-faq .faq-human .section__sub {
  color: #BFD0C4;
}

.page-faq .faq-human__grid {
  display: grid;
  gap: 24px;
  margin-top: 8px;
}

.page-faq .faq-human__col {
  min-width: 0;
}

.page-faq .faq-human__col--contact {
  padding: 18px 20px;
  background: var(--ink-soft);
  border-left: 6px solid var(--apricot);
}

.page-faq .faq-human__label {
  margin: 0 0 12px;
  font-family: var(--font-cond);
  font-size: var(--fs-1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-human__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.page-faq .faq-human__list li {
  position: relative;
  padding: 9px 0 9px 22px;
  border-bottom: 1px solid rgba(253, 246, 236, .16);
  font-size: var(--fs-2);
  line-height: 1.65;
  color: #EDE3D4;
}

.page-faq .faq-human__list li:last-child {
  border-bottom: 0;
}

.page-faq .faq-human__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 10px;
  height: 2px;
  background: var(--apricot);
}

.page-faq .faq-human__mail {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.25rem);
  font-weight: 700;
  word-break: break-all;
  color: var(--cyan);
}

.page-faq .faq-human__note {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: #BFD0C4;
}

.page-faq .faq-human__note a {
  color: var(--apricot);
  text-decoration: none;
  border-bottom: 2px solid var(--apricot-deep);
}

.page-faq .faq-human__note a:hover {
  color: var(--almond);
  border-bottom-color: var(--almond);
}

/* ---------- 响应式 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-dispatch__go {
    display: none;
  }

  .page-faq .faq-dispatch__row a {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-item__head {
    gap: 10px;
    padding: 13px 12px;
  }

  .page-faq .faq-item__body {
    padding: 0 12px 18px;
  }

  .page-faq .faq-item[open] .faq-item__body {
    padding-left: 18px;
  }

  .page-faq .faq-steps > li {
    padding-left: 38px;
  }

  .page-faq .faq-steps > li::after {
    left: 24px;
    width: 6px;
  }
}

@media (min-width: 768px) {
  .page-faq .faq-status {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-human__grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-faq .faq-index .anchor-nav {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index .anchor-nav__link {
    border: 0;
    border-left: 3px solid transparent;
    padding: 9px 10px;
    white-space: normal;
  }

  .page-faq .faq-index .anchor-nav__link:hover {
    background: var(--sand);
    border-left-color: var(--line);
  }

  .page-faq .faq-index .anchor-nav__link.is-active {
    background: var(--sand);
    border-left-color: var(--apricot);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-scene__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 310px;
    gap: 28px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-status__cell--doing {
    animation: none;
  }

  .page-faq .faq-dispatch__row a,
  .page-faq .faq-item,
  .page-faq .faq-item__body {
    transition: none;
  }
}