/* ===== 方案A：深色主题，统一全站 ===== */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    html {
      scroll-behavior: smooth;
    }
    body {
      font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
      background: linear-gradient(145deg, #0b0b18 0%, #15152c 100%);
      color: #e9e9f4;
      line-height: 1.6;
      min-height: 100vh;
      transition: background 0.3s, color 0.3s;
    }
    body.light-theme {
      background: #f6f8ff;
      color: #142033;
    }
    /* 对比度保证：正文 #e9e9f4 在 #0b0b18 上对比度 > 12:1，标题 #f2f2ff > 13:1 */
    a {
      color: #9d7cff;
      text-decoration: none;
      transition: color 0.2s, text-decoration 0.2s;
    }
    a:hover {
      color: #c4b0ff;
      text-decoration: underline;
    }
    body.light-theme a {
      color: #6c4df6;
    }
    body.light-theme a:hover {
      color: #4a2edb;
    }
    h1, h2, h3 {
      color: #f2f2ff;
      font-weight: 700;
      line-height: 1.3;
    }
    body.light-theme h1,
    body.light-theme h2,
    body.light-theme h3 {
      color: #0d0820;
    }
    img {
      display: block;
      max-width: 100%;
      height: auto;
      border-radius: 12px;
      background: #1a1a36;
    }
    body.light-theme img {
      background: #eef2fb;
    }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 20px;
    }
    /* ===== 阅读进度条 ===== */
    #progress-bar {
      position: fixed;
      top: 0;
      left: 0;
      width: 0%;
      height: 3px;
      background: linear-gradient(90deg, #7c5cff, #9d7cff);
      z-index: 9999;
      transition: width 0.1s;
    }
    /* ===== 导航 ===== */
    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 1000;
      background: rgba(11, 11, 24, 0.75);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid transparent;
      transition: border 0.3s, box-shadow 0.3s, background 0.3s;
    }
    body.light-theme header {
      background: rgba(246, 248, 255, 0.8);
    }
    header.scrolled {
      border-bottom: 1px solid #2e2e58;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    }
    body.light-theme header.scrolled {
      border-bottom: 1px solid rgba(40, 62, 100, 0.13);
      box-shadow: 0 8px 24px rgba(40, 62, 100, 0.12);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 20px;
      max-width: 1280px;
      margin: 0 auto;
      gap: 16px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.15rem;
      font-weight: 700;
      color: #f2f2ff;
      white-space: nowrap;
    }
    body.light-theme .logo {
      color: #0d0820;
    }
    .logo img {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: #2e2e58;
    }
    .nav-links {
      display: flex;
      gap: 8px;
      align-items: center;
      flex-wrap: wrap;
    }
    .nav-links a {
      font-size: 0.9rem;
      padding: 6px 10px;
      border-radius: 8px;
      color: #e9e9f4;
      transition: background 0.2s, color 0.2s;
    }
    body.light-theme .nav-links a {
      color: #142033;
    }
    .nav-links a:hover {
      background: #2e2e58;
      color: #ffffff;
      text-decoration: none;
    }
    body.light-theme .nav-links a:hover {
      background: rgba(108, 77, 246, 0.12);
      color: #0d0820;
    }
    .nav-right {
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .search-box {
      display: flex;
      align-items: center;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 40px;
      padding: 4px 12px;
    }
    body.light-theme .search-box {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .search-box input {
      background: transparent;
      border: none;
      outline: none;
      color: #e9e9f4;
      padding: 6px 4px;
      width: 140px;
      font-size: 0.85rem;
    }
    body.light-theme .search-box input {
      color: #142033;
    }
    .search-box input::placeholder {
      color: #a0a0c0;
    }
    body.light-theme .search-box input::placeholder {
      color: #6b7b95;
    }
    .search-box button {
      background: transparent;
      border: none;
      color: #9d7cff;
      cursor: pointer;
      font-size: 1rem;
      padding: 4px;
    }
    .theme-btn, .cta-btn {
      background: #7c5cff;
      border: none;
      color: #fff;
      padding: 8px 16px;
      border-radius: 40px;
      font-size: 0.85rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s, transform 0.2s;
      white-space: nowrap;
    }
    .theme-btn {
      background: #2e2e58;
      color: #e9e9f4;
      padding: 8px 12px;
    }
    body.light-theme .theme-btn {
      background: #eef2fb;
      color: #142033;
    }
    .theme-btn:hover, .cta-btn:hover {
      background: #9d7cff;
      transform: scale(1.02);
    }
    .hamburger {
      display: none;
      background: transparent;
      border: 1px solid #2e2e58;
      color: #e9e9f4;
      font-size: 1.5rem;
      padding: 4px 12px;
      border-radius: 8px;
      cursor: pointer;
    }
    body.light-theme .hamburger {
      border-color: rgba(40, 62, 100, 0.13);
      color: #142033;
    }
    .mobile-menu {
      display: none;
      flex-direction: column;
      background: #15152c;
      border-top: 1px solid #2e2e58;
      padding: 12px 20px 20px;
    }
    body.light-theme .mobile-menu {
      background: #f6f8ff;
      border-top: 1px solid rgba(40, 62, 100, 0.13);
    }
    .mobile-menu.open {
      display: flex;
    }
    .mobile-menu a {
      padding: 10px 0;
      border-bottom: 1px solid #2e2e58;
      color: #e9e9f4;
      font-size: 0.95rem;
    }
    body.light-theme .mobile-menu a {
      border-bottom: 1px solid rgba(40, 62, 100, 0.13);
      color: #142033;
    }
    .mobile-menu a:last-child {
      border-bottom: none;
    }
    /* ===== Hero ===== */
    .hero {
      min-height: 75vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 120px 20px 60px;
      position: relative;
    }
    .hero-logo {
      width: 200px;
      height: 200px;
      border-radius: 48px;
      object-fit: cover;
      border: 3px solid #2e2e58;
      box-shadow: 0 20px 40px rgba(124, 92, 255, 0.25);
      margin-bottom: 24px;
    }
    .hero h1 {
      font-size: clamp(1.8rem, 5vw, 3rem);
      max-width: 900px;
      margin-bottom: 12px;
    }
    .hero .slogan {
      font-size: 1.1rem;
      color: #c4b0ff;
      margin-bottom: 16px;
      font-weight: 500;
    }
    body.light-theme .hero .slogan {
      color: #6c4df6;
    }
    .hero .intro {
      max-width: 700px;
      font-size: 0.95rem;
      color: #c8c8e0;
      margin-bottom: 28px;
    }
    body.light-theme .hero .intro {
      color: #2a3b55;
    }
    .hero-cta {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
      justify-content: center;
      margin-bottom: 40px;
    }
    .hero-cta .cta-btn {
      padding: 12px 28px;
      font-size: 1rem;
    }
    .hero-cta .cta-btn.secondary {
      background: transparent;
      border: 1px solid #7c5cff;
      color: #9d7cff;
    }
    body.light-theme .hero-cta .cta-btn.secondary {
      border-color: #6c4df6;
      color: #6c4df6;
    }
    .hero-cta .cta-btn.secondary:hover {
      background: #7c5cff;
      color: #fff;
    }
    .hero-stats {
      display: flex;
      gap: 48px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .hero-stats .stat {
      text-align: center;
    }
    .hero-stats .stat .num {
      font-size: 2rem;
      font-weight: 800;
      color: #9d7cff;
    }
    body.light-theme .hero-stats .stat .num {
      color: #6c4df6;
    }
    .hero-stats .stat .label {
      font-size: 0.85rem;
      color: #b0b0d0;
    }
    body.light-theme .hero-stats .stat .label {
      color: #3a4b66;
    }
    /* ===== 通用 Section ===== */
    section {
      padding: 60px 0;
    }
    .section-title {
      font-size: 1.8rem;
      margin-bottom: 8px;
      text-align: center;
    }
    .section-sub {
      text-align: center;
      color: #b0b0d0;
      margin-bottom: 40px;
      font-size: 0.95rem;
    }
    body.light-theme .section-sub {
      color: #3a4b66;
    }
    /* ===== 热门漫画网格 ===== */
    .comic-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .comic-card {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 16px;
      overflow: hidden;
      transition: transform 0.25s, border 0.25s, box-shadow 0.25s;
      position: relative;
    }
    body.light-theme .comic-card {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .comic-card:hover {
      transform: translateY(-6px);
      border-color: #7c5cff;
      box-shadow: 0 16px 32px rgba(124, 92, 255, 0.2);
    }
    .comic-card img {
      width: 100%;
      height: auto;
      aspect-ratio: 220/310;
      object-fit: cover;
      border-radius: 0;
    }
    .comic-card .badge {
      position: absolute;
      top: 10px;
      left: 10px;
      background: #7c5cff;
      color: #fff;
      font-size: 0.7rem;
      padding: 3px 10px;
      border-radius: 20px;
      font-weight: 600;
    }
    .comic-card .views {
      position: absolute;
      top: 10px;
      right: 10px;
      background: rgba(0, 0, 0, 0.7);
      color: #fff;
      font-size: 0.7rem;
      padding: 3px 10px;
      border-radius: 20px;
    }
    .comic-card .info {
      padding: 14px;
    }
    .comic-card .info h3 {
      font-size: 1rem;
      margin-bottom: 6px;
    }
    .comic-card .info p {
      font-size: 0.8rem;
      color: #b0b0d0;
      margin-bottom: 2px;
    }
    body.light-theme .comic-card .info p {
      color: #3a4b66;
    }
    .comic-card .info .type {
      display: inline-block;
      background: #2e2e58;
      color: #c4b0ff;
      font-size: 0.7rem;
      padding: 2px 10px;
      border-radius: 20px;
      margin-top: 6px;
    }
    body.light-theme .comic-card .info .type {
      background: #eef2fb;
      color: #6c4df6;
    }
    /* ===== 精品推荐 ===== */
    .featured-list {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .featured-item {
      display: flex;
      gap: 24px;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 20px;
      padding: 20px;
      transition: border 0.25s, box-shadow 0.25s;
      align-items: center;
    }
    body.light-theme .featured-item {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .featured-item:hover {
      border-color: #7c5cff;
      box-shadow: 0 12px 28px rgba(124, 92, 255, 0.15);
    }
    .featured-item img {
      width: 300px;
      height: 200px;
      object-fit: cover;
      border-radius: 14px;
      flex-shrink: 0;
    }
    .featured-item .feat-text {
      flex: 1;
    }
    .featured-item .feat-text h3 {
      font-size: 1.3rem;
      margin-bottom: 8px;
    }
    .featured-item .feat-text .meta {
      font-size: 0.85rem;
      color: #b0b0d0;
      margin-bottom: 10px;
    }
    body.light-theme .featured-item .feat-text .meta {
      color: #3a4b66;
    }
    .featured-item .feat-text p {
      font-size: 0.9rem;
      color: #d0d0e8;
      margin-bottom: 12px;
    }
    body.light-theme .featured-item .feat-text p {
      color: #2a3b55;
    }
    .tag-list {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }
    .tag-list span {
      background: #2e2e58;
      color: #c4b0ff;
      font-size: 0.75rem;
      padding: 4px 12px;
      border-radius: 20px;
    }
    body.light-theme .tag-list span {
      background: #eef2fb;
      color: #6c4df6;
    }
    /* ===== 详细介绍 ===== */
    .detail-layout {
      display: flex;
      gap: 32px;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 24px;
      padding: 32px;
    }
    body.light-theme .detail-layout {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .detail-left {
      flex: 0 0 220px;
      background: linear-gradient(135deg, #15152c, #1a1a36);
      border-radius: 20px;
      padding: 28px 20px;
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
    body.light-theme .detail-left {
      background: #f0f4fe;
    }
    .detail-left .big-num {
      font-size: 5rem;
      font-weight: 900;
      color: #7c5cff;
      line-height: 1;
      margin-bottom: 12px;
    }
    body.light-theme .detail-left .big-num {
      color: #6c4df6;
    }
    .detail-left .summary {
      font-size: 0.9rem;
      color: #c4b0ff;
      font-weight: 500;
    }
    body.light-theme .detail-left .summary {
      color: #4a2edb;
    }
    .detail-right {
      flex: 1;
    }
    .detail-right h2 {
      font-size: 1.6rem;
      margin-bottom: 16px;
    }
    .detail-right p {
      font-size: 0.95rem;
      color: #d0d0e8;
      margin-bottom: 14px;
      line-height: 1.8;
    }
    body.light-theme .detail-right p {
      color: #2a3b55;
    }
    .detail-tags {
      display: flex;
      gap: 12px;
      margin-top: 20px;
      flex-wrap: wrap;
    }
    .detail-tags span {
      background: #7c5cff;
      color: #fff;
      padding: 6px 18px;
      border-radius: 30px;
      font-size: 0.8rem;
      font-weight: 600;
    }
    body.light-theme .detail-tags span {
      background: #6c4df6;
    }
    /* ===== 角色介绍 ===== */
    .char-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }
    .char-card {
      display: flex;
      gap: 18px;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 18px;
      padding: 18px;
      transition: border 0.25s, box-shadow 0.25s;
      align-items: center;
    }
    body.light-theme .char-card {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .char-card:hover {
      border-color: #7c5cff;
      box-shadow: 0 8px 20px rgba(124, 92, 255, 0.15);
    }
    .char-card img {
      width: 90px;
      height: 90px;
      border-radius: 50%;
      object-fit: cover;
      flex-shrink: 0;
      border: 2px solid #2e2e58;
    }
    body.light-theme .char-card img {
      border-color: rgba(40, 62, 100, 0.13);
    }
    .char-card .char-info h3 {
      font-size: 1.05rem;
      margin-bottom: 4px;
    }
    .char-card .char-info .role {
      font-size: 0.75rem;
      color: #9d7cff;
      font-weight: 600;
      margin-bottom: 6px;
      display: inline-block;
      background: #2e2e58;
      padding: 2px 10px;
      border-radius: 20px;
    }
    body.light-theme .char-card .char-info .role {
      background: #eef2fb;
      color: #6c4df6;
    }
    .char-card .char-info p {
      font-size: 0.82rem;
      color: #b0b0d0;
    }
    body.light-theme .char-card .char-info p {
      color: #3a4b66;
    }
    /* ===== 平台介绍 ===== */
    .platform-layout {
      display: flex;
      gap: 32px;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 24px;
      padding: 32px;
    }
    body.light-theme .platform-layout {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .platform-left {
      flex: 1.2;
    }
    .platform-left p {
      font-size: 0.95rem;
      color: #d0d0e8;
      margin-bottom: 14px;
      line-height: 1.8;
    }
    body.light-theme .platform-left p {
      color: #2a3b55;
    }
    .platform-right {
      flex: 0.8;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }
    .step-item {
      display: flex;
      gap: 14px;
      align-items: flex-start;
      background: #15152c;
      border-radius: 14px;
      padding: 14px 16px;
      border: 1px solid #2e2e58;
    }
    body.light-theme .step-item {
      background: #f0f4fe;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .step-item .step-num {
      background: #7c5cff;
      color: #fff;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.8rem;
      font-weight: 700;
      flex-shrink: 0;
    }
    .step-item .step-text {
      font-size: 0.85rem;
      color: #d0d0e8;
    }
    body.light-theme .step-item .step-text {
      color: #2a3b55;
    }
    .feature-squares {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 32px;
    }
    .feature-square {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 14px;
      padding: 18px;
      text-align: center;
      font-size: 0.85rem;
      font-weight: 600;
      color: #c4b0ff;
      transition: border 0.25s, background 0.25s;
    }
    body.light-theme .feature-square {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
      color: #6c4df6;
    }
    .feature-square:hover {
      border-color: #7c5cff;
      background: #2e2e58;
    }
    body.light-theme .feature-square:hover {
      background: #eef2fb;
    }
    /* ===== 多端同步 ===== */
    .sync-layout {
      display: flex;
      gap: 32px;
      align-items: center;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 24px;
      padding: 32px;
    }
    body.light-theme .sync-layout {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .sync-left {
      flex: 1;
    }
    .sync-left h2 {
      font-size: 1.5rem;
      margin-bottom: 16px;
    }
    .sync-left p {
      font-size: 0.95rem;
      color: #d0d0e8;
      margin-bottom: 14px;
      line-height: 1.8;
    }
    body.light-theme .sync-left p {
      color: #2a3b55;
    }
    .sync-right {
      flex: 1;
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .sync-right img {
      width: 180px;
      height: 270px;
      object-fit: cover;
      border-radius: 20px;
      border: 2px solid #2e2e58;
    }
    body.light-theme .sync-right img {
      border-color: rgba(40, 62, 100, 0.13);
    }
    /* ===== 公告 ===== */
    .notice-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .notice-card {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 16px;
      padding: 20px;
      transition: border 0.25s;
    }
    body.light-theme .notice-card {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .notice-card:hover {
      border-color: #7c5cff;
    }
    .notice-card .date {
      font-size: 0.75rem;
      color: #9d7cff;
      font-weight: 600;
      margin-bottom: 8px;
    }
    .notice-card h3 {
      font-size: 1rem;
      margin-bottom: 6px;
    }
    .notice-card p {
      font-size: 0.82rem;
      color: #b0b0d0;
    }
    body.light-theme .notice-card p {
      color: #3a4b66;
    }
    /* ===== 阅读指南 ===== */
    .guide-layout {
      display: flex;
      gap: 32px;
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 24px;
      padding: 32px;
    }
    body.light-theme .guide-layout {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .guide-left {
      flex: 1.2;
    }
    .guide-left p {
      font-size: 0.95rem;
      color: #d0d0e8;
      margin-bottom: 14px;
      line-height: 1.8;
    }
    body.light-theme .guide-left p {
      color: #2a3b55;
    }
    .guide-right {
      flex: 0.8;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .check-item {
      display: flex;
      gap: 12px;
      align-items: center;
      font-size: 0.9rem;
      color: #d0d0e8;
    }
    body.light-theme .check-item {
      color: #2a3b55;
    }
    .check-item .check-icon {
      width: 22px;
      height: 22px;
      background: #7c5cff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 0.7rem;
      flex-shrink: 0;
    }
    /* ===== APP下载 ===== */
    .app-download {
      text-align: center;
      background: linear-gradient(135deg, #15152c, #1a1a36);
      border-radius: 32px;
      padding: 60px 32px;
      border: 1px solid #2e2e58;
    }
    body.light-theme .app-download {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .app-download h2 {
      font-size: 1.8rem;
      margin-bottom: 12px;
    }
    .app-download p {
      max-width: 600px;
      margin: 0 auto 28px;
      color: #d0d0e8;
      font-size: 0.95rem;
    }
    body.light-theme .app-download p {
      color: #2a3b55;
    }
    .app-buttons {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }
    .app-buttons .cta-btn {
      padding: 12px 32px;
      font-size: 1rem;
    }
    .app-buttons .cta-btn.outline {
      background: transparent;
      border: 1px solid #7c5cff;
      color: #9d7cff;
    }
    body.light-theme .app-buttons .cta-btn.outline {
      border-color: #6c4df6;
      color: #6c4df6;
    }
    .app-buttons .cta-btn.outline:hover {
      background: #7c5cff;
      color: #fff;
    }
    /* ===== 用户评论 ===== */
    .comment-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }
    .comment-card {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 16px;
      padding: 18px;
      transition: border 0.25s;
    }
    body.light-theme .comment-card {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .comment-card:hover {
      border-color: #7c5cff;
    }
    .comment-card .user-info {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 10px;
    }
    .comment-card .user-info .name {
      font-weight: 600;
      font-size: 0.9rem;
      color: #f2f2ff;
    }
    body.light-theme .comment-card .user-info .name {
      color: #0d0820;
    }
    .comment-card .user-info .time {
      font-size: 0.75rem;
      color: #b0b0d0;
    }
    body.light-theme .comment-card .user-info .time {
      color: #3a4b66;
    }
    .comment-card p {
      font-size: 0.85rem;
      color: #d0d0e8;
      line-height: 1.7;
    }
    body.light-theme .comment-card p {
      color: #2a3b55;
    }
    /* ===== FAQ ===== */
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .faq-item {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 14px;
      overflow: hidden;
      transition: border 0.25s;
    }
    body.light-theme .faq-item {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .faq-item.active {
      border-color: #7c5cff;
    }
    .faq-question {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 20px;
      cursor: pointer;
      font-weight: 600;
      font-size: 0.95rem;
      color: #f2f2ff;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      font-family: inherit;
    }
    body.light-theme .faq-question {
      color: #0d0820;
    }
    .faq-question .arrow {
      transition: transform 0.3s;
      font-size: 1.2rem;
      color: #9d7cff;
    }
    .faq-item.active .faq-question .arrow {
      transform: rotate(180deg);
    }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.35s ease;
      padding: 0 20px;
      font-size: 0.9rem;
      color: #d0d0e8;
      line-height: 1.7;
    }
    body.light-theme .faq-answer {
      color: #2a3b55;
    }
    .faq-item.active .faq-answer {
      max-height: 300px;
      padding: 0 20px 18px;
    }
    /* ===== 侧边栏 ===== */
    .sidebar-section {
      display: grid;
      grid-template-columns: 1fr 320px;
      gap: 32px;
    }
    .sidebar {
      position: sticky;
      top: 90px;
      align-self: start;
      display: flex;
      flex-direction: column;
      gap: 24px;
    }
    .sidebar-card {
      background: #1a1a36;
      border: 1px solid #2e2e58;
      border-radius: 18px;
      padding: 20px;
    }
    body.light-theme .sidebar-card {
      background: #ffffff;
      border: 1px solid rgba(40, 62, 100, 0.13);
    }
    .sidebar-card h3 {
      font-size: 1.1rem;
      margin-bottom: 14px;
      padding-bottom: 10px;
      border-bottom: 1px solid #2e2e58;
    }
    body.light-theme .sidebar-card h3 {
      border-bottom: 1px solid rgba(40, 62, 100, 0.13);
    }
    .rank-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .rank-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.85rem;
      color: #d0d0e8;
    }
    body.light-theme .rank-list li {
      color: #2a3b55;
    }
    .rank-list .rank-num {
      width: 24px;
      height: 24px;
      background: #2e2e58;
      border-radius: 6px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 700;
      color: #9d7cff;
      flex-shrink: 0;
    }
    body.light-theme .rank-list .rank-num {
      background: #eef2fb;
      color: #6c4df6;
    }
    .rank-list .rank-num.top3 {
      background: #7c5cff;
      color: #fff;
    }
    .stat-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .stat-row {
      display: flex;
      justify-content: space-between;
      font-size: 0.85rem;
      color: #d0d0e8;
    }
    body.light-theme .stat-row {
      color: #2a3b55;
    }
    .stat-row .stat-val {
      font-weight: 700;
      color: #9d7cff;
    }
    body.light-theme .stat-row .stat-val {
      color: #6c4df6;
    }
    /* ===== 底部 ===== */
    footer {
      background: #0b0b18;
      border-top: 1px solid #2e2e58;
      padding: 48px 0 24px;
      margin-top: 40px;
    }
    body.light-theme footer {
      background: #eef2fb;
      border-top: 1px solid rgba(40, 62, 100, 0.13);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 32px;
      margin-bottom: 32px;
    }
    .footer-col h4 {
      font-size: 1rem;
      margin-bottom: 14px;
      color: #f2f2ff;
    }
    body.light-theme .footer-col h4 {
      color: #0d0820;
    }
    .footer-col a {
      display: block;
      font-size: 0.85rem;
      color: #b0b0d0;
      margin-bottom: 8px;
    }
    body.light-theme .footer-col a {
      color: #3a4b66;
    }
    .footer-col a:hover {
      color: #9d7cff;
    }
    body.light-theme .footer-col a:hover {
      color: #6c4df6;
    }
    .friend-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
      font-size: 0.8rem;
    }
    .friend-links a {
      color: #b0b0d0;
    }
    body.light-theme .friend-links a {
      color: #3a4b66;
    }
    .footer-bottom {
      border-top: 1px solid #2e2e58;
      padding-top: 20px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 12px;
      font-size: 0.75rem;
      color: #b0b0d0;
    }
    body.light-theme .footer-bottom {
      border-top: 1px solid rgba(40, 62, 100, 0.13);
      color: #3a4b66;
    }
    .footer-bottom a {
      color: #b0b0d0;
      margin-left: 12px;
    }
    body.light-theme .footer-bottom a {
      color: #3a4b66;
    }
    /* ===== 返回顶部 ===== */
    #back-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 48px;
      height: 48px;
      background: #7c5cff;
      color: #fff;
      border: none;
      border-radius: 50%;
      font-size: 1.4rem;
      cursor: pointer;
      display: none;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 20px rgba(124, 92, 255, 0.4);
      z-index: 999;
      transition: background 0.2s, transform 0.2s;
    }
    #back-top:hover {
      background: #9d7cff;
      transform: translateY(-3px);
    }
    #back-top.show {
      display: flex;
    }
    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .comic-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .char-grid {
        grid-template-columns: 1fr;
      }
      .sidebar-section {
        grid-template-columns: 1fr;
      }
      .sidebar {
        position: static;
      }
    }
    @media (max-width: 768px) {
      .nav-links, .search-box, .nav-right .cta-btn {
        display: none;
      }
      .hamburger {
        display: block;
      }
      .comic-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .featured-item {
        flex-direction: column;
        align-items: stretch;
      }
      .featured-item img {
        width: 100%;
        height: auto;
        aspect-ratio: 300/200;
      }
      .detail-layout, .platform-layout, .sync-layout, .guide-layout {
        flex-direction: column;
      }
      .detail-left {
        flex: none;
        width: 100%;
      }
      .notice-grid {
        grid-template-columns: 1fr;
      }
      .comment-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .feature-squares {
        grid-template-columns: repeat(2, 1fr);
      }
      .hero-stats {
        gap: 24px;
      }
      .sync-right img {
        width: 140px;
        height: 210px;
      }
    }
    @media (max-width: 480px) {
      .comic-grid {
        grid-template-columns: 1fr;
      }
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .feature-squares {
        grid-template-columns: 1fr;
      }
    }