/* ============ FAQ 帮助中心 ============ */
.page-faq {
  --faq-gradient: linear-gradient(135deg, var(--orange), var(--pink));
  --faq-green-soft: rgba(15, 255, 80, 0.08);
  position: relative;
  background: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-body);
}

.page-faq::before,
.page-faq::after {
  content: "";
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.page-faq::before {
  top: 0;
  right: 0;
  width: 100%;
  height: 460px;
  background:
    radial-gradient(ellipse 640px 320px at 84% -20px, rgba(255, 107, 53, 0.14), transparent 65%),
    radial-gradient(ellipse 460px 260px at 10% 80px, rgba(15, 255, 80, 0.07), transparent 60%);
}

.page-faq::after {
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 92%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), transparent 92%);
}

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

/* 面包屑 */
.page-faq .breadcrumb {
  margin-top: calc(var(--header-h) + 24px);
  padding: 0 var(--gutter);
}

.page-faq .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8125rem;
  color: var(--text-dim);
}

.page-faq .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.25s;
}

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

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

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

/* 顶部引导 */
.page-faq .faq-hero {
  padding: 28px var(--gutter) 20px;
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: 20px;
}

.page-faq .faq-hero-copy {
  position: relative;
  overflow: hidden;
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.page-faq .faq-hero-copy::after {
  content: "FAQ";
  position: absolute;
  right: -8px;
  bottom: -30px;
  font-family: var(--font-head);
  font-size: clamp(5rem, 14vw, 10rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(255, 255, 255, 0.035);
  pointer-events: none;
}

.page-faq .faq-hero-copy h1 {
  margin: 10px 0 8px;
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.page-faq .faq-hero-desc {
  margin: 0 0 20px;
  max-width: 60ch;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.page-faq .faq-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-hero-points a {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: all 0.25s;
}

.page-faq .faq-hero-points a:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--faq-green-soft);
}

.page-faq .faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 16px;
}

/* 快速入口 */
.page-faq .faq-quick {
  padding: 24px var(--gutter) 36px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-quick-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.page-faq .faq-quick-head h2 {
  margin: 4px 0 0;
  font-family: var(--font-head);
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-faq .faq-quick-note {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-dim);
}

.page-faq .faq-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  padding: 16px 14px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text-main);
  text-decoration: none;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s, background 0.25s;
}

.page-faq .faq-entry-card:last-child {
  grid-column: 1 / -1;
}

.page-faq .faq-entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--faq-gradient);
  opacity: 0;
  transition: opacity 0.25s;
}

.page-faq .faq-entry-card:hover {
  border-color: rgba(15, 255, 80, 0.6);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
  box-shadow: var(--shadow-deep);
}

.page-faq .faq-entry-card:hover::before {
  opacity: 1;
}

.page-faq .faq-entry-index {
  font-family: var(--font-head);
  font-size: 0.8125rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.page-faq .faq-entry-title {
  font-family: var(--font-head);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.2;
}

.page-faq .faq-entry-meta {
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

/* 搜索框 */
.page-faq .faq-search-box {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-faq .faq-search-box:focus-within {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--faq-green-soft);
}

.page-faq .faq-search-icon {
  display: inline-flex;
  align-items: center;
  color: var(--green);
  line-height: 1;
}

.page-faq .faq-search-input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 6px 0;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-main);
}

.page-faq .faq-search-input::placeholder {
  color: var(--text-dim);
  opacity: 0.8;
}

.page-faq .faq-search-tip {
  grid-column: 1 / -1;
  padding-top: 8px;
  border-top: 1px dashed var(--line);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* 目录式主体 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding: 0 var(--gutter) 48px;
}

/* 左侧目录 */
.page-faq .faq-toc {
  min-width: 0;
  align-self: start;
}

.page-faq .faq-toc-inner {
  padding: 20px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.page-faq .faq-toc-title {
  margin: 0 0 14px;
  padding: 0 12px;
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
}

.page-faq .faq-toc-list li {
  margin: 2px 0;
}

.page-faq .faq-toc-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  font-size: 0.875rem;
  color: var(--text-dim);
  text-decoration: none;
  transition: all 0.25s;
}

.page-faq .faq-toc-list a:hover {
  border-left-color: var(--green);
  background: var(--faq-green-soft);
  color: var(--green);
}

.page-faq .faq-toc-list span {
  min-width: 1.8em;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--orange);
}

.page-faq .faq-toc-contact {
  padding: 16px;
}

.page-faq .faq-toc-contact-label {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-main);
}

.page-faq .faq-toc-contact-text {
  margin: 0 0 14px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-faq .faq-toc-contact .btn {
  width: 100%;
  justify-content: center;
}

/* 右侧内容 */
.page-faq .faq-content {
  display: grid;
  gap: 32px;
  min-width: 0;
}

.page-faq .faq-panel {
  position: relative;
  overflow: hidden;
  padding: 24px 20px 20px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.page-faq .faq-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--faq-gradient);
}

.page-faq .faq-panel-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.page-faq .faq-panel-index {
  flex-shrink: 0;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  background: var(--faq-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-panel-head h2 {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-faq .faq-panel-head p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-dim);
}

/* FAQ 手风琴 */
.page-faq .faq-item {
  margin-bottom: 10px;
  background: rgba(0, 0, 0, 0.18);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-faq .faq-item[open] {
  border-color: rgba(15, 255, 80, 0.5);
  box-shadow: 0 0 18px rgba(15, 255, 80, 0.06);
}

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

.page-faq .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
  padding: 16px 48px 16px 16px;
  position: relative;
  user-select: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  color: var(--green);
  transition: transform 0.3s;
}

.page-faq .faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-q {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.01em;
  color: var(--text-main);
}

.page-faq .faq-a {
  padding: 14px 16px 18px;
  border-top: 1px dashed var(--line);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
}

/* 操作路径 */
.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 6px;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.page-faq .faq-path-label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  white-space: nowrap;
}

.page-faq .faq-path code {
  flex: 1;
  min-width: 180px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--green);
  word-break: break-all;
}

.page-faq .faq-copy-btn {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 8px;
  padding: 6px 12px;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.25s;
}

.page-faq .faq-copy-btn:hover {
  border-color: var(--green);
  color: var(--green);
  box-shadow: 0 0 10px rgba(15, 255, 80, 0.12);
}

/* 使用记录配图 */
.page-faq .faq-record-figure {
  margin: 16px 0 0;
  overflow: hidden;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 12px;
}

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

.page-faq .faq-record-figure figcaption {
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* 底部联系条 */
.page-faq .faq-contact {
  padding-top: 8px;
}

.page-faq .faq-contact-inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
  padding: 24px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.page-faq .faq-contact-inner::after {
  content: "7×24H";
  position: absolute;
  right: 16px;
  bottom: 8px;
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.page-faq .faq-contact-copy h2 {
  margin: 6px 0 8px;
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 800;
}

.page-faq .faq-contact-copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--text-dim);
}

.page-faq .faq-contact .btn {
  align-self: flex-start;
}

/* 响应式 */
@media (min-width: 768px) {
  .page-faq .faq-entry-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-faq .faq-entry-card:last-child {
    grid-column: auto;
  }

  .page-faq .faq-search-box {
    grid-template-columns: auto 1fr auto;
  }

  .page-faq .faq-search-tip {
    grid-column: auto;
    padding-top: 0;
    border-top: 0;
    text-align: right;
  }

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 36px;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    z-index: 5;
  }

  .page-faq .faq-panel {
    padding: 28px 26px 24px;
  }
}