/* ============================================================
   官网改版新增组件（只新增类名，不修改 global.css / official.css 既有规则）
   依赖：css/global.css（设计令牌） + css/official.css（.of-* 基础组件）
   视觉基调维持：近黑 + 品牌紫，圆角 8/12px，120px 板块间距
   ============================================================ */

/* ---------- 1. 导航：下拉与移动端 ---------- */
.of-nav-item {
  position: relative;
}

.of-nav-item > .of-nav-link {
  cursor: pointer;
}

.of-nav-item > .of-nav-link .of-nav-caret {
  display: inline-block;
  margin-left: 6px;
  font-size: 10px;
  color: var(--text-tertiary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.of-nav-item.is-open > .of-nav-link .of-nav-caret,
.of-nav-item:hover > .of-nav-link .of-nav-caret {
  color: var(--accent);
  transform: rotate(180deg);
}

.of-nav-drop {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 196px;
  padding: 6px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-dropdown);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  z-index: 120;
}

.of-nav-item:hover .of-nav-drop,
.of-nav-item.is-open .of-nav-drop {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.of-nav-drop a {
  display: block;
  padding: 9px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

.of-nav-drop a:hover {
  background: var(--bg-surface-2);
  color: var(--text-primary);
}

.of-nav-burger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.of-nav-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-secondary);
  transition: background 0.2s ease;
}

.site-drawer {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  overflow-y: auto;
  padding: 20px var(--of-safe-pad) 110px;
  background: rgba(10, 10, 11, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-default);
  transform: translateX(100%);
  transition: transform 0.28s ease;
}

.site-drawer.open {
  transform: translateX(0);
}

.site-drawer-group {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-default);
}

.site-drawer-group h4 {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  letter-spacing: 2px;
}

.site-drawer-group a {
  display: block;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-secondary);
  text-decoration: none;
}

.site-drawer-group a:hover {
  color: var(--text-primary);
}

.site-sticky-cta {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 98;
  display: none;
  padding: 10px var(--of-safe-pad) calc(10px + env(safe-area-inset-bottom));
  background: rgba(10, 10, 11, 0.96);
  border-top: 1px solid var(--border-default);
  backdrop-filter: blur(12px);
}

.site-sticky-cta .btn {
  width: 100%;
}

/* ---------- 2. 内页页头 ---------- */
.of-page-hero {
  padding: 148px 0 72px;
  background: var(--bg-base);
  border-bottom: 1px solid var(--border-default);
  position: relative;
  overflow: hidden;
}

.of-page-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  left: 50%;
  transform: translateX(-50%);
  width: 620px;
  height: 360px;
  background: radial-gradient(ellipse at center, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.of-page-hero-inner {
  position: relative;
  max-width: 860px;
}

.of-crumb {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 18px;
}

.of-crumb a {
  color: var(--text-tertiary);
  text-decoration: none;
}

.of-crumb a:hover {
  color: var(--accent);
}

.of-page-hero h1 {
  font-size: 42px;
  line-height: 1.25;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--text-primary);
}

.of-page-hero .of-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0;
}

.of-page-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}

/* ---------- 3. 首页首屏：两条业务线并列双卡 ---------- */
.of-hero--split {
  height: auto;
  min-height: 100vh;
  padding: 128px 0 88px;
  display: block;
}

.of-hero--split .of-hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.of-hero--split .of-hero-subtitle {
  margin-bottom: 44px;
}

.of-dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
  align-items: stretch;
  text-align: left;
}

.of-dual-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px;
  background: rgba(20, 20, 24, 0.78);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.of-dual-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.of-dual-media {
  position: relative;
  height: 240px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-surface-2);
}

.of-dual-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.of-dual-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  height: 240px;
}

.of-dual-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}

.of-dual-card h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  color: var(--text-primary);
}

.of-dual-card .of-dual-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.of-dual-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.of-dual-points li {
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
}

.of-dual-points li::before {
  content: "";
  width: 4px;
  height: 4px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

.of-dual-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 14px;
  color: var(--text-primary);
  text-decoration: none;
  padding: 9px 18px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.of-dual-link:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- 4. 三步流程 ---------- */
.of-steps3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.of-step3 {
  position: relative;
  padding: 28px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-step3-no {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 14px;
}

.of-step3 h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.of-step3 p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* ---------- 5. 第三层入口 ---------- */
.of-entry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.of-entry-card {
  display: block;
  padding: 26px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.of-entry-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.of-entry-label {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.of-entry-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.of-entry-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.of-entry-more {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--accent);
}

/* ---------- 6. 价格锚点 ---------- */
.of-anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.of-anchor {
  padding: 26px 24px;
  text-align: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-anchor-label {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.of-anchor-price {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.of-anchor-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.of-anchor-actions {
  text-align: center;
  margin-top: 32px;
}

/* ---------- 7. 留资表单 ---------- */
.of-lead-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
}

.of-lead-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.of-lead-copy h2 {
  margin: 0 0 16px;
  font-size: 32px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--text-primary);
}

.of-lead-copy p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.of-lead-copy ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.of-lead-copy li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
}

.of-lead-copy li::before {
  content: "";
  width: 5px;
  height: 5px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--accent);
  flex: 0 0 auto;
}

.of-lead-form {
  padding: 28px 24px;
  background: var(--bg-base);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.of-form-select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-base);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--font-sm);
  font-family: inherit;
  box-sizing: border-box;
  appearance: none;
}

.of-form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.of-lead-submit {
  width: 100%;
  margin-top: 4px;
}

.of-lead-note {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-tertiary);
}

.of-lead-note a {
  color: var(--text-tertiary);
  text-decoration: underline;
}

.of-form-error {
  display: none;
  margin-top: 6px;
  font-size: 12px;
  color: var(--danger);
}

.of-form-error.show {
  display: block;
}

.of-toast {
  display: none;
  margin-top: 14px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.6;
  border-radius: var(--radius-sm);
}

.of-toast.success {
  display: block;
  color: var(--success);
  background: var(--success-bg);
  border: 1px solid rgba(52, 211, 153, 0.3);
}

.of-toast.error {
  display: block;
  color: var(--danger);
  background: rgba(255, 107, 129, 0.1);
  border: 1px solid rgba(255, 107, 129, 0.3);
}

/* ---------- 8. FAQ ---------- */
.of-faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 10px;
}

.of-faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.of-faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  font-size: 15px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}

.of-faq-q .of-faq-icon {
  flex: 0 0 auto;
  color: var(--text-tertiary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.of-faq-item.open .of-faq-icon {
  color: var(--accent);
  transform: rotate(45deg);
}

.of-faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
}

.of-faq-item.open .of-faq-a {
  display: block;
}

/* ---------- 9. 作品卡补充信息 ---------- */
.of-work-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-tertiary);
}

.of-work-card.is-unplayable .of-work-play {
  display: none;
}

.of-work-card.is-unplayable {
  cursor: default;
}

.of-work-badge {
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 3px 8px;
  font-size: 11px;
  color: var(--text-secondary);
  background: rgba(10, 10, 11, 0.82);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
}

/* ---------- 10. 通用：左侧标题、数字条、CTA 横条、时间轴 ---------- */
.of-section-head--left {
  text-align: left;
  margin-bottom: 40px;
}

.of-section-head--left .of-section-title,
.of-section-head--left .of-section-desc {
  text-align: left;
}

.of-stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.of-stat-strip-item {
  padding: 24px;
  text-align: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-stat-strip-item strong {
  display: block;
  font-size: 28px;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.of-stat-strip-item span {
  font-size: 13px;
  color: var(--text-secondary);
}

.of-cta-band {
  padding: 56px 0;
  background: linear-gradient(180deg, var(--bg-base), var(--bg-surface));
  border-top: 1px solid var(--border-default);
  text-align: center;
}

.of-cta-band h2 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 600;
  color: var(--text-primary);
}

.of-cta-band p {
  margin: 0 0 24px;
  font-size: 15px;
  color: var(--text-secondary);
}

.of-cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.of-tl {
  position: relative;
  display: grid;
  gap: 18px;
  max-width: 900px;
  margin: 0 auto;
}

.of-tl-item {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 20px;
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-tl-no {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 1px;
}

.of-tl-body h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--text-primary);
}

.of-tl-body p {
  margin: 0 0 6px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.of-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.of-info-card {
  padding: 26px 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.of-info-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  color: var(--text-primary);
}

.of-info-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.of-note {
  max-width: 860px;
  margin: 28px auto 0;
  padding: 16px 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-tertiary);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
}

/* 视频占位（无授权样片时使用，避免空播放器） */
.of-media-ph {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 220px;
  font-size: 13px;
  color: var(--text-tertiary);
  background:
    linear-gradient(135deg, rgba(124, 92, 255, 0.08), transparent 60%),
    var(--bg-surface-2);
  border: 1px dashed var(--border-default);
  border-radius: var(--radius-md);
  text-align: center;
  padding: 20px;
}

/* ---------- 11. 页脚加宽版（六列） ---------- */
.of-footer-grid--wide {
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr 1fr;
  gap: 28px;
}

.of-footer-grid--wide .of-footer-col h4 {
  font-size: 13px;
}

.of-footer-grid--wide .of-footer-col a {
  margin-bottom: 10px;
}

.of-footer-tip {
  margin-top: 18px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-tertiary);
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1100px) {
  .of-footer-grid--wide {
    grid-template-columns: 1.4fr 1fr 1fr;
    row-gap: 32px;
  }
}

@media (max-width: 900px) {
  .of-nav-links {
    display: none;
  }

  .of-nav-burger {
    display: flex;
  }

  .site-sticky-cta {
    display: block;
  }

  .of-dual-grid,
  .of-steps3,
  .of-entry-grid,
  .of-anchor-grid,
  .of-lead-wrap,
  .of-info-grid,
  .of-stat-strip {
    grid-template-columns: 1fr;
  }

  .of-dual-media,
  .of-dual-strip {
    height: 200px;
  }

  .of-hero--split {
    padding: 104px 0 96px;
  }

  .of-page-hero {
    padding: 120px 0 56px;
  }

  .of-page-hero h1 {
    font-size: 30px;
  }

  .of-lead-copy h2 {
    font-size: 26px;
  }

  .of-lead-wrap {
    gap: 28px;
  }

  .of-tl-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .of-form-row {
    grid-template-columns: 1fr;
  }

  .of-footer-grid--wide {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .of-form-row {
    grid-template-columns: 1fr;
  }

  .of-footer-grid--wide {
    grid-template-columns: 1fr;
  }

  .of-page-hero h1 {
    font-size: 26px;
  }
}