* { margin: 0; padding: 0; box-sizing: border-box; }
  :root {
    --pink: #ffb3d1;
    --pink-deep: #ff7fb2;
    --purple: #c9a8ff;
    --purple-deep: #9d7bff;
    --sky: #a8d8ff;
    --ink: #2f2340;
    --ink-soft: #5d4d72;
    --white: #ffffff;
  }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, #a8d8ff 0%, #d9c4ff 22%, #ffd3e6 48%, #ffe7f2 72%, #f5ecff 100%);
    background-attachment: fixed;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  section { padding: 56px 20px; }
  .wrap { max-width: 1120px; margin: 0 auto; }
  h1, h2, h3 { line-height: 1.35; }
  h1 { font-size: 30px; letter-spacing: 0.5px; }
  h2 { font-size: 25px; margin-bottom: 10px; }
  h3 { font-size: 18px; margin-bottom: 6px; }
  p { color: var(--ink-soft); }
  .eyebrow {
    display: inline-block;
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--purple-deep);
    background: rgba(255,255,255,0.7);
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 12px;
  }
  .lead { max-width: 720px; margin-top: 8px; }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.9);
  }
  .nav-inner {
    max-width: 1120px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 18px;
  }
  .brand { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 17px; color: var(--ink); white-space: nowrap; }
  .brand img { width: 34px; height: 34px; border-radius: 10px; object-fit: contain; }
  .nav-links {
    display: flex;
    gap: 4px;
    overflow-x: auto;
    scrollbar-width: none;
    flex: 1;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a {
    font-size: 14px;
    color: var(--ink-soft);
    text-decoration: none;
    padding: 6px 11px;
    border-radius: 999px;
    white-space: nowrap;
    transition: background 0.2s, color 0.2s;
  }
  .nav-links a:hover { background: rgba(255,179,209,0.45); color: var(--ink); }
  .nav-dl {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(120deg, var(--pink-deep), var(--purple-deep));
    padding: 8px 18px;
    border-radius: 999px;
    text-decoration: none;
    white-space: nowrap;
    box-shadow: 0 6px 16px rgba(157,123,255,0.35);
  }

  /* 首屏 */
  .hero { padding: 64px 20px 48px; }
  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 44px;
    align-items: center;
  }
  .hero h1 span { color: var(--purple-deep); }
  .hero-sub { font-size: 16px; margin-top: 16px; max-width: 520px; }
  .store-btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
  .store-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 22px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    color: #fff;
    background: linear-gradient(120deg, var(--pink-deep), var(--purple-deep));
    box-shadow: 0 10px 24px rgba(255,127,178,0.35);
    border: 1px solid rgba(255,255,255,0.5);
    transition: transform 0.2s;
    cursor: pointer;
  }
  .store-btn:hover { transform: translateY(-2px); }
  .store-btn.ios {
    background: linear-gradient(120deg, #9d7bff, #6fa8ff);
    box-shadow: 0 10px 24px rgba(111,168,255,0.35);
  }
  .store-btn small { display: block; font-size: 11px; font-weight: 400; opacity: 0.9; line-height: 1.2; }
  .store-btn b { font-size: 15px; display: block; line-height: 1.2; }
  .hero-posters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .hero-posters img {
    width: 100%;
    aspect-ratio: 3 / 4.2;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 14px 30px rgba(120,90,160,0.25);
    border: 3px solid rgba(255,255,255,0.85);
    display: block;
  }
  .hero-posters img:nth-child(2) { margin-top: 26px; }

  /* 沉浸式体验 */
  .immersive { background: transparent; }
  .immersive-panel {
    background: rgba(255,255,255,0.62);
    border: 1px solid rgba(255,255,255,0.9);
    border-radius: 26px;
    padding: 38px 32px;
    box-shadow: 0 20px 50px rgba(150,120,200,0.15);
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 36px;
    align-items: center;
  }
  .immersive-points { display: grid; gap: 16px; margin-top: 20px; }
  .immersive-points li {
    list-style: none;
    padding-left: 22px;
    position: relative;
    color: var(--ink-soft);
    font-size: 15px;
  }
  .immersive-points li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple-deep));
  }
  .phone-mock {
    border-radius: 30px;
    padding: 10px;
    background: linear-gradient(150deg, var(--pink), var(--sky));
    box-shadow: 0 18px 40px rgba(120,90,160,0.28);
  }
  .phone-mock img { width: 100%; border-radius: 22px; display: block; }

  /* 通用卡片区 */
  .section-head { text-align: center; margin-bottom: 34px; }
  .section-head .lead { margin: 10px auto 0; text-align: center; }

  .poster-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .poster-card {
    background: rgba(255,255,255,0.78);
    border: 1px solid rgba(255,255,255,0.95);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 26px rgba(150,120,200,0.16);
    transition: transform 0.25s;
  }
  .poster-card:hover { transform: translateY(-4px); }
  .poster-card img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    display: block;
  }
  .poster-card h3 { font-size: 16px; margin: 12px 14px 4px; }
  .poster-card p { font-size: 13px; margin: 0 14px 14px; line-height: 1.6; }

  /* 图文左右板块 */
  .feature-row {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 34px;
    align-items: center;
    background: rgba(255,255,255,0.62);
    border: 1px solid rgba(255,255,255,0.9);
    border-radius: 24px;
    padding: 26px;
    margin-bottom: 22px;
    box-shadow: 0 16px 40px rgba(150,120,200,0.12);
  }
  .feature-row.reverse { grid-template-columns: 1fr 300px; }
  .feature-row.reverse .feature-media { order: 2; }
  .feature-media img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 16px;
    display: block;
    box-shadow: 0 10px 24px rgba(120,90,160,0.22);
  }
  .feature-text h2 { font-size: 22px; }
  .feature-text p { margin-top: 8px; font-size: 15px; }
  .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
  .tag {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(201,168,255,0.28);
    color: var(--purple-deep);
    font-weight: 600;
  }

  /* 教程三步 */
  .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
  .step {
    background: rgba(255,255,255,0.85);
    border-radius: 20px;
    padding: 24px 22px;
    border: 1px solid rgba(255,255,255,0.95);
    box-shadow: 0 10px 26px rgba(150,120,200,0.13);
  }
  .step-num {
    width: 34px; height: 34px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--pink-deep), var(--purple-deep));
    margin-bottom: 12px;
  }
  .step p { font-size: 14px; }

  /* 截图墙横向滚动 */
  .shot-strip {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    padding: 6px 2px 18px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
  }
  .shot-strip img {
    width: 178px;
    flex: 0 0 auto;
    border-radius: 14px;
    scroll-snap-align: start;
    box-shadow: 0 10px 24px rgba(120,90,160,0.2);
    display: block;
  }

  /* 底部下载区 */
  .download-band {
    background: linear-gradient(120deg, rgba(255,179,209,0.85), rgba(201,168,255,0.85));
    border-radius: 28px;
    padding: 44px 30px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(160,120,200,0.22);
  }
  .download-band h2 { color: #3a2a52; }
  .download-band p { color: #4f3a6b; max-width: 560px; margin: 10px auto 0; }
  .download-band .store-btns { justify-content: center; }

  /* 复制弹窗 */
  .copy-modal {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(48,32,70,0.5);
    padding: 24px;
  }
  .copy-modal.open { display: flex; }
  .copy-box {
    background: #fff;
    border-radius: 20px;
    padding: 26px 22px;
    max-width: 360px;
    width: 100%;
    text-align: center;
    box-shadow: 0 24px 60px rgba(60,40,90,0.35);
  }
  .copy-box .warn { font-size: 14px; color: #b03a68; font-weight: 700; margin-bottom: 14px; line-height: 1.6; }
  .copy-link {
    font-size: 13px;
    color: var(--ink-soft);
    word-break: break-all;
    background: #f6f2fb;
    border-radius: 12px;
    padding: 12px;
    margin-bottom: 16px;
    -webkit-user-select: all;
    user-select: all;
  }
  .copy-actions { display: flex; gap: 10px; }
  .copy-actions button {
    flex: 1;
    border: none;
    padding: 11px 0;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
  }
  .btn-copy { background: linear-gradient(120deg, var(--pink-deep), var(--purple-deep)); color: #fff; }
  .btn-close { background: #efe9f7; color: var(--ink-soft); }

  /* 页脚 */
  .site-footer {
    padding: 34px 20px 40px;
    border-top: 1px solid rgba(255,255,255,0.8);
    background: rgba(255,255,255,0.35);
  }
  .footer-inner { max-width: 1120px; margin: 0 auto; text-align: center; }
  .site-footer p {
    font-size: 12px;
    color: #8477a0;
    line-height: 1.9;
  }
  .site-footer a { color: #7a6b98; text-decoration: none; }
  .site-footer a:hover { text-decoration: underline; }
  .search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 18px;
  }
  .search-tags span {
    font-size: 12px;
    color: #8577a4;
    background: rgba(255,255,255,0.65);
    padding: 4px 12px;
    border-radius: 999px;
  }

  /* 响应式 */
  @media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 30px; }
    .hero-posters { max-width: 460px; }
    .immersive-panel { grid-template-columns: 1fr; }
    .phone-mock { max-width: 300px; margin: 0 auto; }
    .poster-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-row, .feature-row.reverse { grid-template-columns: 240px 1fr; }
    .feature-row.reverse .feature-media { order: 0; }
    .steps { grid-template-columns: 1fr; }
  }
  @media (max-width: 768px) {
    section { padding: 40px 16px; }
    h1 { font-size: 24px; }
    h2 { font-size: 21px; }
    .nav-inner { padding: 8px 14px; gap: 12px; }
    .nav-dl { display: none; }
    .hero { padding: 34px 16px 30px; }
    .hero-posters { grid-template-columns: 1fr 1fr; max-width: 100%; gap: 10px; }
    .hero-posters img:nth-child(2) { margin-top: 18px; }
    .immersive-panel { padding: 24px 18px; gap: 24px; }
    .feature-row, .feature-row.reverse { grid-template-columns: 1fr; gap: 18px; padding: 18px; }
    .feature-media img { aspect-ratio: 16 / 10; }
    .poster-card h3 { font-size: 15px; }
    .download-band { padding: 32px 18px; }
    .store-btn { flex: 1 1 100%; justify-content: center; }
    .shot-strip img { width: 142px; }
  }