/* ===== 帮助中心页面专属样式 ===== */
.page-faq {
  background: var(--c-bg);
  color: var(--c-text);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .section {
  padding-top: 2rem;
  padding-bottom: 2rem;
  scroll-margin-top: 7rem;
}

.page-faq .eyebrow {
  color: var(--c-ice);
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 0.5rem;
}

.page-faq .section-head-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-faq .section-head-row h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.6rem);
  line-height: 1.15;
  color: var(--c-text);
  margin: 0.25rem 0 0;
}

.page-faq .section-note {
  color: var(--c-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 32rem;
  margin: 0;
}

.page-faq .btn {
  align-self: flex-start;
  margin-top: auto;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.5rem;
  color: var(--c-muted);
  font-family: var(--font-data);
  font-size: 0.82rem;
}

.page-faq .breadcrumb a {
  color: var(--c-ice);
  text-decoration: none;
  transition: var(--transition);
}

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

.page-faq .breadcrumb-sep {
  opacity: 0.6;
}

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

/* Hero */
.page-faq .faq-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.page-faq .faq-hero__copy::before {
  content: "";
  display: block;
  width: 2.75rem;
  height: 0.28rem;
  background: linear-gradient(90deg, var(--c-violet), var(--c-green));
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
}

.page-faq .faq-hero__copy h1 {
  font-family: var(--font-head);
  font-size: clamp(2rem, 1.6rem + 1.6vw, 3.6rem);
  line-height: 1.12;
  color: var(--c-text);
  margin: 0.5rem 0 1rem;
}

.page-faq .faq-hero__lead {
  color: var(--c-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 38rem;
  margin: 0;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__tags .tag {
  background: var(--c-panel);
  border: 1px solid rgba(10, 212, 255, 0.22);
  color: var(--c-text);
  border-radius: var(--radius-pill);
  padding: 0.35rem 0.9rem;
  font-size: 0.84rem;
  text-decoration: none;
  transition: var(--transition);
}

.page-faq .faq-hero__tags .tag:hover {
  border-color: var(--c-green);
  color: var(--c-green);
}

.page-faq .faq-hero__visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(10, 212, 255, 0.35);
  box-shadow: 0 0 0 6px rgba(10, 212, 255, 0.08);
}

.page-faq .faq-hero__visual::before {
  content: "FAQ / 帮助文档";
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 2;
  background: rgba(7, 10, 22, 0.68);
  color: var(--c-green);
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-pill);
}

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

/* 搜索帮助网格 */
.page-faq .faq-search-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-search-grid .card {
  position: relative;
  background: var(--c-panel);
  border: 1px solid rgba(10, 212, 255, 0.15);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: hidden;
  transition: var(--transition);
}

.page-faq .faq-search-grid .card:hover {
  transform: translateY(-3px);
  border-color: var(--c-ice);
  box-shadow: 0 8px 24px rgba(122, 90, 245, 0.16);
}

.page-faq .faq-search-grid .card::after {
  content: attr(data-index);
  position: absolute;
  right: 0.75rem;
  bottom: 0.25rem;
  font-family: var(--font-data);
  font-size: 3.5rem;
  font-weight: 700;
  color: rgba(10, 212, 255, 0.08);
  line-height: 1;
  pointer-events: none;
}

.page-faq .card-index {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-green);
  background: rgba(83, 255, 160, 0.1);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-pill);
}

.page-faq .faq-search-grid h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--c-text);
  margin: 0;
}

.page-faq .faq-search-grid p {
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

/* 账号与权限面板 */
.page-faq .faq-account-panel {
  background: var(--c-warm);
  color: #1a1f33;
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: grid;
  gap: 2rem;
}

.page-faq .faq-account-copy h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.4rem);
  color: #111b44;
  margin: 0.5rem 0 1rem;
}

.page-faq .faq-account-copy p {
  color: #3a4365;
  line-height: 1.8;
  margin: 0 0 1rem;
}

.page-faq .faq-account-copy ul {
  padding-left: 1rem;
  margin: 1rem 0;
}

.page-faq .faq-account-copy li {
  color: #2a3350;
  margin-bottom: 0.5rem;
}

.page-faq .faq-account-copy a {
  color: var(--c-violet);
  font-weight: 500;
}

.page-faq .faq-account-data {
  background: var(--c-panel);
  color: var(--c-text);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: grid;
  align-content: center;
  gap: 0.25rem;
}

.page-faq .faq-account-num {
  font-family: var(--font-data);
  font-size: clamp(2.4rem, 2rem + 1.6vw, 3.6rem);
  font-weight: 700;
  color: var(--c-green);
  line-height: 1;
}

.page-faq .faq-account-label {
  display: block;
  color: var(--c-muted);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

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

/* 数据与播放 */
.page-faq .faq-data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-data-grid .card {
  background: linear-gradient(145deg, var(--c-panel), var(--c-frame-2));
  border: 1px solid rgba(122, 90, 245, 0.25);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: var(--transition);
}

.page-faq .faq-data-grid .card:hover {
  border-color: var(--c-violet);
  box-shadow: 0 0 0 1px rgba(122, 90, 245, 0.4);
  transform: translateY(-2px);
}

.page-faq .faq-data-grid h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: var(--c-text);
  margin: 0 0 0.75rem;
}

.page-faq .faq-data-grid p {
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.75;
  margin: 0 0 0.75rem;
}

.page-faq .faq-data-grid p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-data-lead {
  color: var(--c-green) !important;
  font-family: var(--font-data);
  font-size: 1.2rem;
  margin: 0.25rem 0 !important;
}

.page-faq .faq-timeline {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.page-faq .faq-timeline li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(142, 150, 192, 0.15);
  color: var(--c-muted);
  font-size: 0.92rem;
}

.page-faq .faq-timeline li:last-child {
  border-bottom: none;
}

.page-faq .faq-timeline .data-num {
  color: var(--c-green);
  font-weight: 500;
}

/* 抽屉式 FAQ 布局 */
.page-faq .faq-drawer-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-item {
  background: var(--c-panel);
  border: 1px solid rgba(10, 212, 255, 0.15);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.page-faq .faq-item[open] {
  border-color: var(--c-ice);
  box-shadow: 0 4px 20px rgba(10, 212, 255, 0.12);
}

.page-faq .faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  font-family: var(--font-head);
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.4;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-data);
  font-size: 1.4rem;
  color: var(--c-green);
  transition: var(--transition);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-answer {
  padding: 0.75rem 1.25rem 1.25rem;
  border-top: 1px solid rgba(142, 150, 192, 0.12);
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-faq .faq-answer p {
  margin: 0.5rem 0 0;
}

.page-faq .faq-answer a {
  color: var(--c-ice);
  text-decoration: none;
}

.page-faq .faq-answer a:hover {
  color: var(--c-green);
}

/* 右侧联系卡 */
.page-faq .faq-contact-card {
  background: linear-gradient(135deg, rgba(122, 90, 245, 0.16), rgba(10, 212, 255, 0.08)), var(--c-panel);
  border: 1px solid rgba(122, 90, 245, 0.4);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.page-faq .faq-contact-card h3 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--c-text);
  margin: 0;
}

.page-faq .faq-contact-card > p {
  color: var(--c-muted);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
}

.page-faq .faq-contact-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
  display: grid;
  gap: 0.75rem;
}

.page-faq .faq-contact-list li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  align-items: baseline;
  gap: 0.5rem;
  background: rgba(7, 10, 22, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
}

.page-faq .faq-contact-type {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-ice);
  letter-spacing: 0.06em;
}

.page-faq .faq-contact-list a {
  color: var(--c-text);
  font-family: var(--font-data);
  font-size: 0.9rem;
  text-decoration: none;
  word-break: break-all;
}

.page-faq .faq-contact-list a:hover {
  color: var(--c-green);
}

.page-faq .faq-contact-list span:last-child {
  color: var(--c-text);
  font-size: 0.9rem;
  line-height: 1.5;
}

.page-faq .faq-contact-note {
  color: var(--c-muted);
  font-size: 0.82rem;
  line-height: 1.6;
  background: rgba(255, 92, 57, 0.06);
  border-left: 3px solid var(--c-alert);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 0.5rem 0.75rem;
  margin: 0;
}

/* 联系与反馈 */
.page-faq .faq-contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-faq .faq-contact-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(83, 255, 160, 0.25);
  box-shadow: 0 0 0 4px rgba(83, 255, 160, 0.06);
}

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

.page-faq .faq-contact-info h2 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 1.2rem + 1.2vw, 2.6rem);
  color: var(--c-text);
  margin: 0.25rem 0 1rem;
}

.page-faq .faq-contact-info > p {
  color: var(--c-muted);
  line-height: 1.8;
  margin: 0 0 1rem;
}

.page-faq .faq-contact-info > p a {
  color: var(--c-ice);
  text-decoration: none;
}

.page-faq .faq-contact-info > p a:hover {
  color: var(--c-green);
}

.page-faq .faq-contact-meta {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-contact-meta li {
  background: var(--c-panel);
  border: 1px solid rgba(10, 212, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  color: var(--c-text);
  font-size: 0.92rem;
}

.page-faq .faq-contact-meta .data-num {
  color: var(--c-green);
  font-weight: 500;
}

.page-faq .faq-feedback-callout {
  background: rgba(122, 90, 245, 0.12);
  border: 1px solid rgba(122, 90, 245, 0.3);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-faq .faq-feedback-callout p {
  color: var(--c-text);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

.page-faq .faq-trust-line {
  color: var(--c-muted);
  font-size: 0.82rem;
  line-height: 1.6;
  margin: 1.5rem 0 0 !important;
  border-top: 1px solid rgba(142, 150, 192, 0.15);
  padding-top: 0.75rem;
}

/* 平板 */
@media (min-width: 40rem) {
  .page-faq .faq-search-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

/* 桌面 */
@media (min-width: 60rem) {
  .page-faq .faq-hero {
    grid-template-columns: 7fr 5fr;
    gap: 4rem;
    padding-top: 3.5rem;
    padding-bottom: 4rem;
  }

  .page-faq .section-head-row {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .page-faq .faq-account-panel {
    grid-template-columns: 7fr 5fr;
    padding: 2.5rem;
  }

  .page-faq .faq-contact-layout {
    grid-template-columns: 5fr 7fr;
    align-items: center;
  }
}

@media (min-width: 64rem) {
  .page-faq .faq-search-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-drawer-layout {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-faq .faq-contact-card {
    position: sticky;
    top: 6rem;
  }
}