/* ===== 支持中心 · 页面作用域 ===== */
.page-faq {
  --faq-line: var(--ridge);
  position: relative;
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-faq::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 620px;
  background:
    radial-gradient(880px 400px at 10% -12%, rgba(47, 191, 166, .13), transparent 66%),
    radial-gradient(760px 380px at 92% -4%, rgba(215, 38, 61, .15), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero,
.page-faq .faq-block,
.page-faq .faq-next {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(1.2rem, 4vw, 2.2rem);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 1.5rem;
}

.page-faq .faq-hero h1 {
  margin: .55rem 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.95rem, 5vw, 3.4rem);
  line-height: 1.14;
  letter-spacing: -.03em;
  color: var(--snow);
  max-width: 22ch;
}

.page-faq .faq-lede {
  margin: 1.05rem 0 0;
  max-width: 60ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-metric {
  background: var(--rock);
  padding: .85rem .95rem;
}

.page-faq .faq-metric dt {
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-faq .faq-metric dd {
  margin: .28rem 0 0;
  display: flex;
  align-items: baseline;
  gap: .22rem;
  color: var(--snow);
  font-size: 1.28rem;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-metric .num {
  color: var(--amber);
  transform: skewX(-1.5deg);
  display: inline-block;
}

.page-faq .faq-metric .unit {
  font-family: var(--font-sans);
  font-size: .78rem;
  color: var(--mist);
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: clamp(1.4rem, 3.4vw, 2.2rem);
  padding-top: 1.15rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .48rem .95rem;
  border: 1px solid var(--faq-line);
  border-radius: 999px;
  background: rgba(18, 26, 51, .62);
  color: var(--snow);
  font-size: .86rem;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mist);
  transition: background .18s var(--ease);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  border-color: var(--red);
  background: rgba(215, 38, 61, .1);
}

.page-faq .faq-chip:hover::before,
.page-faq .faq-chip:focus-visible::before {
  background: var(--red);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-block {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
  border-top: 1px solid var(--faq-line);
}

.page-faq .sec-head {
  max-width: 72ch;
}

.page-faq .sec-num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--red);
  text-stroke: 1.5px var(--red);
  transform: skewX(-1.5deg);
  transition: color .25s var(--ease);
}

.page-faq .faq-block.is-current .sec-num {
  color: var(--red);
}

.page-faq .sec-kicker {
  margin: .55rem 0 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--teal);
}

.page-faq .sec-title {
  margin: .35rem 0 0;
  font-size: clamp(1.32rem, 3.4vw, 1.95rem);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--snow);
}

.page-faq .sec-sub {
  margin: .75rem 0 0;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--mist);
  max-width: 66ch;
}

/* ---------- 01 重新登录 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 1.8rem;
  margin-top: clamp(1.5rem, 3.4vw, 2.3rem);
}

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

.page-faq .faq-steps li {
  position: relative;
  padding: 0 0 1.5rem 3.15rem;
}

.page-faq .faq-steps li::before {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 2.45rem;
  bottom: -.15rem;
  width: 1px;
  background: var(--faq-line);
}

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

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

.page-faq .faq-steps .step-num {
  position: absolute;
  left: 0;
  top: .02rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--faq-line);
  border-radius: 50%;
  background: var(--rock);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: .86rem;
  color: var(--amber);
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-steps li:hover .step-num {
  border-color: var(--red);
  background: rgba(215, 38, 61, .12);
}

.page-faq .faq-steps h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--snow);
}

.page-faq .faq-steps p {
  margin: .4rem 0 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-tip {
  margin-top: 1.6rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius-sm);
  background: var(--rock);
}

.page-faq .faq-tip-label {
  display: block;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .faq-tip ul {
  margin: .6rem 0 0;
  padding-left: 1.05rem;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-faq .faq-figure .media {
  display: block;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rock-deep);
}

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

.page-faq .media-caption {
  display: block;
  margin-top: .7rem;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 02 设备管理 ---------- */
.page-faq .faq-cards {
  margin-top: clamp(1.5rem, 3.4vw, 2.2rem);
}

.page-faq .faq-cards .card {
  padding: 1.1rem 1.15rem 1.25rem;
  background: var(--rock);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  transition: border-color .18s var(--ease);
}

.page-faq .faq-cards .card:hover {
  border-color: var(--red);
}

.page-faq .faq-cards .card-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-cards .card-note {
  margin: .55rem 0 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 03 栏目与费用（手风琴） ---------- */
.page-faq .faq-acc {
  display: grid;
  gap: .65rem;
  margin-top: clamp(1.5rem, 3.4vw, 2.2rem);
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--rock);
  overflow: hidden;
  transition: border-color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-item:hover {
  border-color: rgba(215, 38, 61, .5);
}

.page-faq .faq-item[open] {
  border-color: rgba(215, 38, 61, .6);
  background: var(--rock-deep);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: .95rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-size: .97rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--snow);
}

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

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--red);
  transition: transform .18s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  content: "\2212";
}

.page-faq .faq-a {
  margin: 0 1.05rem 1.1rem 1.05rem;
  padding-left: .95rem;
  border-left: 2px solid var(--red);
  font-size: .93rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-a p {
  margin: 0;
}

/* ---------- 04 数据同步 ---------- */
.page-faq .faq-table-wrap {
  margin-top: clamp(1.4rem, 3.2vw, 2rem);
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--rock);
  -webkit-overflow-scrolling: touch;
}

.page-faq .data-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: .92rem;
}

.page-faq .data-table th,
.page-faq .data-table td {
  padding: .85rem 1.05rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-line);
  line-height: 1.75;
}

.page-faq .data-table th {
  font-size: .76rem;
  letter-spacing: .08em;
  font-weight: 500;
  color: var(--mist);
  background: rgba(31, 42, 77, .35);
  white-space: nowrap;
}

.page-faq .data-table td:first-child {
  color: var(--snow);
  font-weight: 500;
  white-space: nowrap;
}

.page-faq .data-table td:last-child {
  color: var(--mist);
}

.page-faq .data-table tbody tr:last-child td {
  border-bottom: none;
}

.page-faq .faq-checks {
  display: grid;
  gap: .85rem;
  margin-top: 1.5rem;
}

.page-faq .faq-check {
  position: relative;
  padding: 1rem 1.1rem 1.05rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--rock);
  border-top: 2px solid var(--teal);
}

.page-faq .faq-check-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--teal);
  transform: skewX(-1.5deg);
}

.page-faq .faq-check h3 {
  margin: .5rem 0 0;
  font-size: .97rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-check p {
  margin: .4rem 0 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-after {
  margin: 1.4rem 0 0;
  padding-left: 1rem;
  border-left: 2px solid var(--amber);
  font-size: .92rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 05 账号安全 ---------- */
.page-faq .faq-safe-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-faq .faq-safe-list li {
  padding-left: 1rem;
  border-left: 1px solid var(--faq-line);
  transition: border-color .18s var(--ease);
}

.page-faq .faq-safe-list li:hover {
  border-left-color: var(--red);
}

.page-faq .faq-safe-list h3 {
  margin: 0;
  font-size: .98rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-safe-list p {
  margin: .35rem 0 0;
  font-size: .91rem;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 06 人工通道 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 1.5rem;
  margin-top: clamp(1.5rem, 3.4vw, 2.2rem);
  padding: 1.3rem 1.2rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(18, 26, 51, .95), rgba(14, 22, 48, .95));
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-contact-main h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-contact-list {
  margin: .8rem 0 1.2rem;
  padding-left: 1.05rem;
  font-size: .92rem;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-contact-main .btn {
  display: inline-flex;
  align-items: center;
  padding: .6rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--red);
  color: #fff;
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  transition: background .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-contact-main .btn:hover,
.page-faq .faq-contact-main .btn:focus-visible {
  background: var(--red-deep);
  border-color: var(--amber);
}

.page-faq .faq-contact-side {
  padding-top: 1.2rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-contact-channels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}

.page-faq .faq-contact-channels .contact-line {
  display: grid;
  gap: .18rem;
}

.page-faq .faq-contact-channels .contact-label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-faq .faq-contact-channels .contact-value {
  font-size: .92rem;
  line-height: 1.7;
  color: var(--snow);
  word-break: break-word;
}

.page-faq .faq-contact-side .contact-note {
  margin: 1rem 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 延伸入口 ---------- */
.page-faq .faq-next {
  padding: clamp(2.2rem, 5vw, 3.4rem) 0 0;
  border-top: 1px solid var(--faq-line);
  margin-top: clamp(2rem, 5vw, 3rem);
}

.page-faq .faq-next-grid {
  display: grid;
  gap: .75rem;
  margin-top: 1.3rem;
}

.page-faq .faq-next-link {
  display: grid;
  gap: .3rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-sm);
  background: var(--rock);
  text-decoration: none;
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-next-link:hover,
.page-faq .faq-next-link:focus-visible {
  border-color: var(--red);
  transform: translateY(-2px);
}

.page-faq .faq-next-label {
  font-size: .98rem;
  font-weight: 700;
  color: var(--snow);
}

.page-faq .faq-next-desc {
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-checks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, .92fr);
    align-items: end;
    gap: 2.4rem;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, .85fr);
    align-items: start;
    gap: 2rem;
    padding: 1.6rem 1.7rem;
  }

  .page-faq .faq-contact-side {
    padding-top: 0;
    padding-left: 1.6rem;
    border-top: none;
    border-left: 1px solid var(--faq-line);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: start;
    gap: 2.4rem;
  }

  .page-faq .faq-split--reverse {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  }

  .page-faq .faq-split--reverse .faq-figure {
    order: 1;
  }

  .page-faq .faq-split--reverse .faq-safe {
    order: 2;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .faq-cards .card,
  .page-faq .faq-item,
  .page-faq .faq-steps .step-num,
  .page-faq .faq-next-link,
  .page-faq .faq-contact-main .btn,
  .page-faq .sec-num {
    transition: none;
  }

  .page-faq .faq-next-link:hover {
    transform: none;
  }
}