.page-faq {
  --faq-line: rgba(16, 42, 67, 0.13);
  --faq-wash: rgba(11, 110, 138, 0.07);
  --faq-card: #ffffff;
  background: var(--color-snow);
  color: var(--color-ink);
  font-family: var(--font-sans);
  padding-bottom: clamp(2rem, 6vw, 4rem);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: clamp(1rem, 3vw, 1.8rem);
}

.page-faq .faq-crumb .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-crumb .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.45rem;
  color: rgba(16, 42, 67, 0.35);
}

.page-faq .faq-crumb .breadcrumb-link {
  color: var(--color-cyan);
  text-decoration: none;
}

.page-faq .faq-crumb .breadcrumb-item span {
  color: var(--color-indigo);
  font-weight: 500;
}

/* —— 首屏 —— */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(0.8rem, 2vw, 1.4rem);
  padding: clamp(1.6rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.6rem);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(63, 208, 201, 0.18), rgba(247, 250, 252, 0) 62%),
    linear-gradient(180deg, rgba(11, 110, 138, 0.12), rgba(247, 250, 252, 0) 78%);
  border-bottom: var(--hairline);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-faq .faq-hero__lead .kicker {
  color: var(--color-cyan);
}

.page-faq .faq-hero__lead .display-title {
  margin: 0.5rem 0 0.9rem;
  max-width: 18em;
  color: var(--color-indigo);
}

.page-faq .faq-hero__lead .lede {
  max-width: 34em;
  color: rgba(7, 25, 35, 0.76);
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.3rem;
}

.page-faq .faq-tags .tag {
  text-decoration: none;
  transition: transform 240ms var(--ease), background-color 240ms var(--ease);
}

.page-faq .faq-tags .tag:hover,
.page-faq .faq-tags .tag:focus-visible {
  transform: translateY(-2px);
}

.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--faq-line);
  border: var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-figure {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 0.8rem;
  background: rgba(255, 255, 255, 0.92);
}

.page-faq .faq-figure__num {
  font-family: var(--font-numeric);
  font-size: clamp(1.3rem, 3.4vw, 1.8rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-figure__label {
  font-size: 0.72rem;
  line-height: 1.4;
  color: rgba(16, 42, 67, 0.7);
}

.page-faq .faq-figures__foot {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0.85rem 0.9rem;
  background: var(--color-sand);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--color-indigo);
}

/* —— 知识库布区 —— */
.page-faq .faq-library {
  display: grid;
  gap: clamp(1.4rem, 4vw, 3rem);
  padding-top: clamp(1.6rem, 4vw, 3rem);
}

.page-faq .faq-index {
  border: var(--hairline);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.94);
  padding: 1rem 1rem 1.1rem;
  box-shadow: var(--shadow-card);
}

.page-faq .faq-index .chapter-nav-title {
  margin: 0 0 0.7rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-faq .faq-index .chapter-nav-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.3rem 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index .chapter-link {
  display: block;
  padding: 0.38rem 0 0.38rem 0.6rem;
  border-left: 2px solid rgba(16, 42, 67, 0.14);
  font-size: 0.82rem;
  line-height: 1.45;
  color: rgba(16, 42, 67, 0.78);
  text-decoration: none;
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-faq .faq-index .chapter-link:hover,
.page-faq .faq-index .chapter-link:focus-visible {
  color: var(--color-cyan);
  border-left-color: var(--color-cyan);
}

.page-faq .faq-index .chapter-link[aria-current="location"] {
  color: var(--color-cyan);
  border-left-color: var(--color-orange);
  font-weight: 700;
}

/* —— 章节 —— */
.page-faq .faq-chapter {
  padding-block: clamp(1.5rem, 4vw, 2.4rem);
  border-top: var(--hairline);
  scroll-margin-top: 110px;
}

.page-faq .faq-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-chapter__head {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.5rem 0.8rem;
  margin-bottom: 1.4rem;
}

.page-faq .faq-chapter__num {
  font-family: var(--font-numeric);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--color-gold);
  padding-top: 0.5rem;
  border-top: 2px solid var(--color-gold);
  align-self: start;
}

.page-faq .faq-chapter__head .section-title {
  margin: 0 0 0.6rem;
  color: var(--color-indigo);
  font-size: clamp(1.25rem, 3.4vw, 1.7rem);
  line-height: 1.35;
}

.page-faq .faq-chapter__head .body-copy {
  margin: 0;
  max-width: 42em;
  color: rgba(7, 25, 35, 0.76);
}

.page-faq .faq-media {
  margin: 0 0 1.5rem;
  border: var(--hairline);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-mist);
}

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

.page-faq .faq-media .media-caption {
  padding: 0.7rem 1rem;
  background: rgba(255, 255, 255, 0.9);
  font-size: 0.76rem;
  color: rgba(16, 42, 67, 0.7);
}

/* —— 步骤条 —— */
.page-faq .faq-steps {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps .step {
  position: relative;
  padding: 1.15rem 1.05rem 1.2rem;
  border: var(--hairline);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-steps .step[data-current="true"] {
  border-color: rgba(242, 138, 46, 0.65);
  background: linear-gradient(180deg, rgba(243, 228, 200, 0.55), #ffffff 62%);
}

.page-faq .faq-steps .step[data-current="true"]::after {
  content: "现在做这一步";
  position: absolute;
  top: 0.85rem;
  right: 0.9rem;
  padding: 0.16rem 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--color-orange);
  color: #ffffff;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
}

.page-faq .faq-steps .step__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  margin-bottom: 0.6rem;
  border-radius: 50%;
  background: var(--color-cyan);
  color: #ffffff;
  font-family: var(--font-numeric);
  font-size: 0.85rem;
  font-weight: 700;
}

.page-faq .faq-steps .step__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-indigo);
}

.page-faq .faq-steps .step__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: rgba(7, 25, 35, 0.74);
}

.page-faq .faq-hint {
  margin: 1.1rem 0 0;
  padding: 0.85rem 1.05rem;
  border-left: 3px solid var(--color-orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-sand);
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--color-indigo);
}

/* —— 日常访问双路径 —— */
.page-faq .faq-paths {
  display: grid;
  gap: 0.9rem;
}

.page-faq .faq-paths .card {
  padding: 1.15rem 1.1rem 1.2rem;
  border: var(--hairline);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-paths .card--tinted {
  background: linear-gradient(160deg, rgba(11, 110, 138, 0.1), rgba(255, 255, 255, 0.96) 68%);
}

.page-faq .faq-paths .card__index {
  margin: 0 0 0.4rem;
  font-family: var(--font-numeric);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-gold);
}

.page-faq .faq-paths .card__title {
  margin: 0 0 0.45rem;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-indigo);
}

.page-faq .faq-paths .card__text {
  margin: 0 0 0.6rem;
  font-size: 0.88rem;
  line-height: 1.72;
  color: rgba(7, 25, 35, 0.75);
}

.page-faq .faq-paths .card__meta {
  margin: 0;
  font-size: 0.74rem;
  color: var(--color-cyan);
}

.page-faq .faq-points {
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(7, 25, 35, 0.74);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62rem;
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-electric);
}

/* —— 活动规则四段 —— */
.page-faq .faq-rules {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-rule {
  padding: 1.05rem 1.05rem 1.15rem;
  border: var(--hairline);
  border-left: 3px solid var(--color-cyan);
  border-radius: var(--radius-sm);
  background: var(--faq-card);
}

.page-faq .faq-rule__num {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-numeric);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-gold);
}

.page-faq .faq-rule__title {
  margin: 0 0 0.35rem;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-indigo);
}

.page-faq .faq-rule__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(7, 25, 35, 0.74);
}

/* —— 安卓升级 —— */
.page-faq .faq-android {
  display: grid;
  gap: 0.85rem;
}

.page-faq .faq-android__item {
  padding: 1rem 1.05rem 1.1rem;
  border: var(--hairline);
  border-radius: var(--radius-md);
  background: linear-gradient(170deg, rgba(43, 168, 154, 0.1), rgba(255, 255, 255, 0.97) 60%);
}

.page-faq .faq-android__label {
  margin: 0 0 0.3rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-teal);
}

.page-faq .faq-android__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-sans);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-indigo);
}

.page-faq .faq-android__text {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: rgba(7, 25, 35, 0.74);
}

/* —— 问题分组与折叠问答 —— */
.page-faq .faq-tags--index {
  margin: 0 0 1.4rem;
}

.page-faq .faq-group {
  margin-bottom: 1.6rem;
  scroll-margin-top: 110px;
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-indigo);
}

.page-faq .faq-group__title::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--color-gold);
  flex: none;
}

.page-faq .faq-qa {
  border: var(--hairline);
  border-radius: var(--radius-sm);
  background: var(--faq-card);
  margin-bottom: 0.55rem;
  overflow: hidden;
  transition: border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-faq .faq-qa:hover {
  border-color: rgba(11, 110, 138, 0.4);
}

.page-faq .faq-qa[open] {
  border-color: rgba(11, 110, 138, 0.45);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-qa__q {
  position: relative;
  padding: 0.9rem 2.6rem 0.9rem 1.05rem;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--color-indigo);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-numeric);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--color-cyan);
  transition: transform 240ms var(--ease);
}

.page-faq .faq-qa[open] .faq-qa__q::after {
  content: "−";
}

.page-faq .faq-qa[open] .faq-qa__q {
  color: var(--color-cyan);
}

.page-faq .faq-qa__a {
  padding: 0 1.05rem 1rem;
  border-top: 1px solid rgba(16, 42, 67, 0.08);
  padding-top: 0.75rem;
}

.page-faq .faq-qa__a p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.78;
  color: rgba(7, 25, 35, 0.75);
}

.page-faq .faq-inline-link {
  color: var(--color-cyan);
  text-decoration: underline;
  text-decoration-color: rgba(11, 110, 138, 0.35);
  text-underline-offset: 0.18em;
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  text-decoration-color: var(--color-cyan);
}

.page-faq .faq-more {
  margin: 1.1rem 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: rgba(16, 42, 67, 0.72);
}

/* —— 人工协助 —— */
.page-faq .faq-help__panel {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.3rem, 4vw, 2.2rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(90% 120% at 90% 0%, rgba(63, 208, 201, 0.28), rgba(16, 42, 67, 0) 60%),
    linear-gradient(135deg, var(--color-cyan), #0a4f66 58%, var(--color-indigo));
  color: var(--color-snow);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-help__label {
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-sand);
}

.page-faq .faq-help__mail,
.page-faq .faq-help__phone {
  margin: 0 0 0.35rem;
  font-family: var(--font-numeric);
  font-size: clamp(0.92rem, 2.6vw, 1.05rem);
  line-height: 1.7;
  word-break: break-word;
}

.page-faq .faq-help__link {
  color: var(--color-sand);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-faq .faq-help__actions .button {
  text-decoration: none;
}

/* —— 响应式 —— */
@media (min-width: 700px) {
  .page-faq .faq-paths,
  .page-faq .faq-android,
  .page-faq .faq-rules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
  }

  .page-faq .faq-steps .step {
    padding: 1.1rem 0.95rem 1.15rem;
  }

  .page-faq .faq-steps .step[data-current="true"]::after {
    position: static;
    display: inline-block;
    margin-bottom: 0.5rem;
  }

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(250px, 0.72fr);
    align-items: end;
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-library {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .faq-index .chapter-nav-list {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .page-faq .faq-index .chapter-link {
    font-size: 0.84rem;
    padding: 0.45rem 0 0.45rem 0.65rem;
  }

  .page-faq .faq-android {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tags .tag,
  .page-faq .faq-qa,
  .page-faq .faq-qa__q::after,
  .page-faq .faq-index .chapter-link {
    transition: none;
  }
}