/* ===== 问答中心专属样式 ===== */
.page-faq {
  --faq-accent-data: var(--neon-blue);
  --faq-accent-guide: var(--neon-purple);
  --faq-accent-app: var(--neon-green);
  --faq-accent-other: var(--neon-red);
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "//";
  margin-right: 8px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.page-faq .page-header {
  margin: 32px 0 40px;
}

.page-faq .page-header__kicker {
  color: var(--neon-purple);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-faq .page-header__kicker::before {
  content: "▍";
  margin-right: 6px;
  color: var(--neon-purple);
}

.page-faq .page-header__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  font-family: var(--font-display);
  line-height: 1.15;
  margin: 8px 0 12px;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.page-faq .page-header__intro {
  max-width: 720px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  line-height: 1.7;
  margin: 0;
}

/* ===== 双栏布局 ===== */
.page-faq .faq-layout {
  display: grid;
  gap: 40px;
  margin-top: 8px;
  align-items: start;
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 116px;
  }
}

/* ===== 左侧问题分类列表 ===== */
.page-faq .faq-index {
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(11, 16, 34, 0.85), rgba(18, 24, 56, 0.4));
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-index::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue), transparent);
  margin: -24px -24px 20px;
}

.page-faq .faq-index__kicker {
  font-size: 12px;
  color: var(--neon-blue);
  letter-spacing: 0.2em;
  font-family: var(--font-mono);
  margin: 0 0 6px;
}

.page-faq .faq-index__title {
  font-size: 20px;
  font-family: var(--font-display);
  margin: 0 0 6px;
  color: var(--text-main);
}

.page-faq .faq-index__note {
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  margin: 0 0 20px;
}

.page-faq .faq-index__group {
  margin-bottom: 20px;
}

.page-faq .faq-index__cat {
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  margin: 0 0 8px;
}

.page-faq .faq-index__cat--data { color: var(--neon-blue); }
.page-faq .faq-index__cat--guide { color: var(--neon-purple); }
.page-faq .faq-index__cat--app { color: var(--neon-green); }
.page-faq .faq-index__cat--other { color: var(--neon-red); }

.page-faq .faq-index__link {
  display: flex;
  gap: 8px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-main);
  text-decoration: none;
  padding: 5px 0 5px 12px;
  border-left: 2px solid transparent;
  transition: all 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--neon-blue);
  border-left-color: var(--neon-blue);
  background: linear-gradient(90deg, rgba(0, 212, 255, 0.04), transparent);
}

.page-faq .faq-index__cta {
  display: inline-block;
  margin-top: 8px;
  padding: 8px 14px;
  border: 1px solid var(--neon-purple);
  color: var(--neon-purple);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: all 0.2s var(--ease);
}

.page-faq .faq-index__cta:hover {
  background: var(--neon-purple);
  color: var(--bg-deep);
}

/* ===== 右侧回答区区块 ===== */
.page-faq .faq-section {
  --section-accent: var(--text-dim);
  --section-glow: rgba(138, 146, 168, 0.08);
  margin-bottom: 72px;
  scroll-margin-top: 140px;
}

.page-faq .faq-section--data {
  --section-accent: var(--neon-blue);
  --section-glow: rgba(0, 212, 255, 0.08);
}

.page-faq .faq-section--guide {
  --section-accent: var(--neon-purple);
  --section-glow: rgba(139, 92, 246, 0.12);
}

.page-faq .faq-section--app {
  --section-accent: var(--neon-green);
  --section-glow: rgba(57, 255, 20, 0.06);
}

.page-faq .faq-section--other {
  --section-accent: var(--neon-red);
  --section-glow: rgba(255, 46, 99, 0.08);
}

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-bottom: 24px;
  padding: 16px 20px;
  border-left: 4px solid var(--section-accent);
  background: linear-gradient(90deg, var(--section-glow), transparent 78%);
}

.page-faq .faq-section__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--section-accent);
  letter-spacing: 0.12em;
}

.page-faq .faq-section__title {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--section-accent);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0;
}

.page-faq .faq-section__tag {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 4px 8px;
  border: 1px solid currentColor;
  color: var(--section-accent);
  letter-spacing: 0.08em;
  border-radius: 2px;
}

/* ===== FAQ 答案折叠项 ===== */
.page-faq .faq-answer {
  border: 1px solid var(--line);
  background: var(--bg-card);
  margin-bottom: 14px;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  scroll-margin-top: 140px;
  overflow-wrap: break-word;
}

.page-faq .faq-answer[open] {
  border-color: var(--section-accent);
  box-shadow: 0 0 0 1px var(--section-accent), 0 8px 24px rgba(0, 0, 0, 0.2);
}

.page-faq .faq-answer__summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  cursor: pointer;
}

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

.page-faq .faq-answer__summary:hover .faq-answer__title {
  color: var(--section-accent);
}

.page-faq .faq-answer__num {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--section-accent);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  border: 1px solid var(--line);
  padding: 2px 6px;
  border-radius: 2px;
}

.page-faq .faq-answer__title {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0;
  color: var(--text-main);
  font-weight: 700;
  flex: 1;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-answer__mark {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-bottom: 2px solid var(--section-accent);
  border-right: 2px solid var(--section-accent);
  transform: rotate(45deg);
  transition: transform 0.25s var(--ease);
  margin-top: -4px;
}

.page-faq .faq-answer[open] .faq-answer__mark {
  transform: rotate(225deg);
  margin-top: 4px;
}

.page-faq .faq-answer__body {
  padding: 0 20px 20px 56px;
}

.page-faq .faq-answer__body p {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-main);
  padding-left: 16px;
  border-left: 2px solid var(--line);
}

.page-faq .faq-answer__body a {
  color: var(--neon-purple);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer__body a:hover {
  color: var(--neon-blue);
}

/* ===== 数据更新区：管线控制台 + 图示 ===== */
.page-faq .faq-dataflow {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-faq .faq-console {
  height: 100%;
}

.page-faq .faq-console .console-panel__head {
  letter-spacing: 0.08em;
}

.page-faq .faq-console .console-panel__row {
  font-family: var(--font-mono);
}

@media (min-width: 700px) {
  .page-faq .faq-dataflow {
    grid-template-columns: 1fr 1fr;
  }
}

/* ===== 图片容器 ===== */
.page-faq .faq-media {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  background: var(--bg-panel);
}

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

.page-faq .faq-media figcaption {
  padding: 12px 16px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  letter-spacing: 0.06em;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.01);
}

.page-faq .faq-media--guide {
  margin-top: 28px;
  max-width: 560px;
}

/* ===== App 能力卡片 ===== */
.page-faq .faq-cap-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 640px) {
  .page-faq .faq-cap-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-faq .faq-cap {
  border: 1px solid var(--line);
  background: var(--bg-card);
  padding: 18px 16px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-cap::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--neon-green);
  opacity: 0.85;
}

.page-faq .faq-cap__icon {
  display: block;
  color: var(--neon-green);
  font-size: 16px;
  margin-bottom: 10px;
}

.page-faq .faq-cap__title {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}

.page-faq .faq-cap__desc {
  display: block;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ===== 联系卡片 ===== */
.page-faq .faq-contact-card {
  margin-top: 32px;
  border: 1px solid var(--neon-purple);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), transparent 65%);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-contact-card__kicker {
  color: var(--neon-purple);
  font-size: 12px;
  letter-spacing: 0.14em;
  font-family: var(--font-mono);
  margin: 0;
}

.page-faq .faq-contact-card__title {
  font-family: var(--font-display);
  font-size: 21px;
  margin: 0;
  color: var(--text-main);
}

.page-faq .faq-contact-card__text {
  font-size: 14px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

.page-faq .faq-contact-card__btn {
  align-self: flex-start;
  margin-top: 8px;
  padding: 10px 18px;
  border: 1px solid var(--neon-purple);
  color: var(--neon-purple);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: all 0.2s var(--ease);
}

.page-faq .faq-contact-card__btn:hover {
  background: var(--neon-purple);
  color: var(--bg-deep);
}