/* ========== 问答中心 FAQ 页面专属样式 ========== */
.page-faq {
  --faq-clay: #C97B63;
  --faq-cream: #F9F6F0;
  --faq-navy: #0A1F44;
  --faq-slate: #8A93A6;
  background: var(--bg-body);
  color: var(--text-main);
}

/* ---------- 框景首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.5rem, 6vw, 4rem) 0 0;
  background:
    radial-gradient(ellipse 80% 60% at 85% -10%, rgba(108, 75, 142, 0.32), transparent 70%),
    radial-gradient(ellipse 60% 50% at -10% 110%, rgba(58, 124, 165, 0.2), transparent 60%),
    var(--bg-deep);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent, var(--bg-body));
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-faq .faq-hero__frame {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3rem);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(14, 42, 94, 0.74), rgba(6, 17, 38, 0.84));
  box-shadow: var(--shadow);
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, #3A7CA5, #E8634A, #F2B632, #5F7A61, #6C4B8E);
}

.page-faq .faq-hero__corner {
  position: absolute;
  width: 26px;
  height: 26px;
  border: 2px solid var(--c-accent);
  opacity: 0.85;
}

.page-faq .faq-hero__corner--tl {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
  border-top-left-radius: var(--radius-md);
}

.page-faq .faq-hero__corner--tr {
  top: -1px;
  right: -1px;
  border-left: 0;
  border-bottom: 0;
  border-top-right-radius: var(--radius-md);
}

.page-faq .faq-hero__corner--bl {
  bottom: -1px;
  left: -1px;
  border-right: 0;
  border-top: 0;
  border-bottom-left-radius: var(--radius-md);
}

.page-faq .faq-hero__corner--br {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
  border-bottom-right-radius: var(--radius-md);
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.page-faq .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .breadcrumb a:hover {
  color: var(--c-accent);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--c-silver);
}

.page-faq .faq-hero__kicker {
  color: var(--c-accent);
}

.page-faq .faq-hero h1 {
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3.25rem);
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--c-silver);
}

.page-faq .faq-hero__desc {
  max-width: 58ch;
  margin-top: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
}

/* ---------- 快速定位目录 ---------- */
.page-faq .faq-dir {
  padding-top: 0;
  margin-top: 2.5rem;
}

.page-faq .faq-dir__inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--surface-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  backdrop-filter: blur(14px);
}

.page-faq .faq-dir__title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--c-accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

.page-faq .faq-dir__btn {
  appearance: none;
  border: 1px solid var(--glass-border);
  background: transparent;
  color: var(--text-main);
  font: inherit;
  font-size: 0.875rem;
  line-height: 1.4;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-dir__btn:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

.page-faq .faq-dir__btn[data-active] {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--faq-navy);
  font-weight: 500;
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-chapter {
  scroll-margin-top: var(--header-height);
}

.page-faq .faq-chapter__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1.5rem;
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-light);
  transition: border-color 0.3s ease;
}

.page-faq .faq-chapter[data-active] .faq-chapter__head {
  border-bottom-color: rgba(242, 182, 50, 0.5);
}

.page-faq .faq-chapter__num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  color: rgba(242, 182, 50, 0.35);
}

.page-faq .faq-chapter__head h2 {
  margin: 0.15rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  letter-spacing: 0.02em;
  color: var(--c-silver);
}

.page-faq .faq-chapter__lead {
  flex-basis: 100%;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-chapter__grid {
  display: grid;
  gap: 2rem;
  align-items: start;
}

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

.page-faq .faq-chapter__side {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

/* ---------- 档案夹手风琴 ---------- */
.page-faq .faq-accordion {
  display: grid;
  gap: 1.25rem;
}

.page-faq .faq-item {
  background: var(--surface-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-item:hover {
  border-color: rgba(230, 232, 238, 0.28);
}

.page-faq .faq-item[data-active] {
  border-color: rgba(201, 123, 99, 0.5);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.page-faq .faq-trigger {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  padding: 1.15rem 1.25rem;
  background: transparent;
  border: 0;
  color: var(--text-main);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease;
}

.page-faq .faq-item[data-active] .faq-trigger {
  background: rgba(201, 123, 99, 0.14);
}

.page-faq .faq-item__num {
  flex: none;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(242, 182, 50, 0.14);
  border: 1px solid rgba(242, 182, 50, 0.35);
  color: var(--c-accent);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-item[data-active] .faq-item__num {
  background: var(--faq-clay);
  border-color: var(--faq-clay);
  color: #fff;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.5;
}

.page-faq .accordion-indicator {
  flex: none;
  width: 28px;
  height: 28px;
  position: relative;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-faq .accordion-indicator::before,
.page-faq .accordion-indicator::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--c-silver);
  transition: background 0.25s ease, opacity 0.25s ease;
}

.page-faq .accordion-indicator::before {
  width: 10px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .accordion-indicator::after {
  width: 2px;
  height: 10px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-item[data-active] .accordion-indicator {
  border-color: rgba(242, 182, 50, 0.5);
}

.page-faq .faq-item[data-active] .accordion-indicator::before,
.page-faq .faq-item[data-active] .accordion-indicator::after {
  background: var(--c-accent);
}

.page-faq .faq-item[data-active] .accordion-indicator::after {
  opacity: 0;
}

/* ---------- 展开面板 ---------- */
.page-faq .accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.page-faq .faq-item[data-active] .accordion-panel {
  grid-template-rows: 1fr;
}

.page-faq .faq-item__answer {
  overflow: hidden;
  min-height: 0;
  background: var(--faq-cream);
  color: var(--faq-navy);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 0 1.5rem;
}

.page-faq .faq-item[data-active] .faq-item__answer {
  padding-top: 1.25rem;
  padding-bottom: 1.5rem;
}

.page-faq .faq-item__answer p {
  margin: 0;
  color: var(--faq-navy);
  line-height: 1.8;
}

.page-faq .faq-item__answer a {
  color: var(--faq-clay);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 侧边信息卡 ---------- */
.page-faq .faq-sidecard {
  position: relative;
  padding: 1.5rem;
  overflow: hidden;
}

.page-faq .faq-sidecard__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  letter-spacing: 0.04em;
  color: var(--c-accent);
}

.page-faq .faq-sidecard__text {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-sidecard__media {
  margin: 0 0 1rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.page-faq .faq-sidecard__media img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 版本时间线 ---------- */
.page-faq .faq-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-faq .faq-timeline__item {
  display: grid;
  grid-template-columns: 44px 74px 1fr;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.7rem;
  background: rgba(230, 232, 238, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.page-faq .faq-timeline__ver {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-accent);
}

.page-faq .faq-timeline__year {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.page-faq .faq-timeline__desc {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-main);
}

/* ---------- 数据能力统计 ---------- */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.page-faq .faq-stat {
  padding: 1rem;
  background: rgba(230, 232, 238, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.page-faq .faq-stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.375rem;
  line-height: 1.2;
  color: var(--c-accent);
}

.page-faq .faq-stat span {
  display: block;
  margin-top: 0.35rem;
  color: var(--text-muted);
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* ---------- 联系信息卡 ---------- */
.page-faq .faq-contact__phone {
  display: block;
  font-family: var(--font-display);
  font-size: 1.375rem;
  color: var(--c-accent);
  text-decoration: none;
  margin-top: 0.5rem;
}

.page-faq .faq-contact__phone:hover {
  color: var(--c-silver);
}

.page-faq .faq-contact__mail {
  margin-top: 0.5rem;
  color: var(--text-main);
  font-size: 0.9375rem;
}

.page-faq .faq-contact__btn {
  margin-top: 1rem;
}

/* ---------- 底部求助区 ---------- */
.page-faq .faq-cta__card {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: clamp(1.75rem, 4vw, 3rem);
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-deep));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-faq .faq-cta__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #3A7CA5, #E8634A, #F2B632, #5F7A61, #6C4B8E);
}

.page-faq .faq-cta__text h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--c-silver);
}

.page-faq .faq-cta__text p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ---------- 提示条 ---------- */
.page-faq .note {
  margin-top: 2rem;
}

/* ---------- 桌面端断点 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }

  .page-faq .faq-hero__media {
    min-height: 100%;
  }

  .page-faq .faq-hero__media img {
    height: 100%;
    max-height: none;
  }

  .page-faq .faq-dir__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq .faq-chapter__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 2rem;
  }

  .page-faq .faq-chapter__head {
    margin-bottom: 2.5rem;
  }
}