:root {
    --bg-deep: #0b0c10;
    --bg-card: #15171e;
    --bg-soft: #1c1f2a;
    --line: rgba(255, 255, 255, 0.08);
    --text-main: #e8ebf2;
    --text-sub: #9aa2b1;
    --brand: #ff5c8a;
    --brand-deep: #b8264f;
    --accent: #59d1ff;
    --radius: 16px;
    --radius-sm: 10px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg-deep);
    color: var(--text-main);
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  img { display: block; max-width: 100%; }
  a { text-decoration: none; color: inherit; }
  ul, ol { list-style: none; }

  /* ============ HEADER ============ */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 12, 16, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
  }
  .header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }
  .logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.5px;
    white-space: nowrap;
  }
  .logo-link img {
    height: 32px;
    width: auto;
    border-radius: 8px;
  }
  .logo-link span {
    background: linear-gradient(100deg, #fff 30%, #ffb3c8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .main-nav a {
    font-size: 13.5px;
    color: var(--text-sub);
    padding: 6px 10px;
    border-radius: 20px;
    transition: color .25s, background .25s;
    white-space: nowrap;
  }
  .main-nav a:hover { color: #fff; background: rgba(255, 92, 138, 0.14); }
  .nav-cta {
    color: #fff !important;
    background: linear-gradient(120deg, var(--brand), var(--brand-deep)) !important;
    font-weight: 600;
  }
  .nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--line);
    color: var(--text-main);
    font-size: 20px;
    padding: 2px 10px;
    border-radius: 8px;
    cursor: pointer;
  }

  /* ============ HERO ============ */
  .hero {
    position: relative;
    overflow: hidden;
    padding: 72px 20px 90px;
    background:
      radial-gradient(circle at 15% 10%, rgba(255, 92, 138, 0.20), transparent 48%),
      radial-gradient(circle at 85% 30%, rgba(89, 209, 255, 0.16), transparent 50%),
      radial-gradient(circle at 50% 100%, rgba(120, 70, 255, 0.18), transparent 60%),
      var(--bg-deep);
  }
  .hero::before {
    content: "";
    position: absolute;
    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: 44px 44px;
    mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
    -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 30%, transparent 78%);
    pointer-events: none;
  }
  .hero-inner {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 48px;
    align-items: center;
  }
  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #ffc8d8;
    border: 1px solid rgba(255, 92, 138, 0.42);
    background: rgba(255, 92, 138, 0.10);
    padding: 6px 14px;
    border-radius: 30px;
    margin-bottom: 22px;
  }
  .hero-tag .dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 4px rgba(255, 92, 138, 0.20);
  }
  .hero h1 {
    font-size: 44px;
    line-height: 1.24;
    letter-spacing: 0.5px;
    margin-bottom: 18px;
    font-weight: 800;
  }
  .hero h1 em {
    font-style: normal;
    background: linear-gradient(100deg, var(--brand) 10%, #ffb26b 60%, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }
  .hero-desc {
    font-size: 15.5px;
    color: var(--text-sub);
    max-width: 520px;
    margin-bottom: 28px;
  }
  .hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
  }
  .hero-points span {
    font-size: 12.5px;
    color: #dfe5f2;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line);
    padding: 7px 14px;
    border-radius: 30px;
  }
  .hero-download {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 13px 22px;
    border-radius: 14px;
    font-size: 14.5px;
    font-weight: 600;
    transition: transform .22s, box-shadow .22s, background .22s;
    border: 1px solid transparent;
    line-height: 1.3;
  }
  .btn:hover { transform: translateY(-2px); }
  .btn-android {
    background: linear-gradient(120deg, #3ddc97, #1f9d6b);
    color: #04160e;
    box-shadow: 0 10px 26px rgba(61, 220, 151, 0.24);
  }
  .btn-ios {
    background: linear-gradient(120deg, var(--accent), #2c7ec9);
    color: #041420;
    box-shadow: 0 10px 26px rgba(89, 209, 255, 0.22);
  }
  .btn-other {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--line);
    color: var(--text-main);
  }
  .btn-other:hover { background: rgba(255, 255, 255, 0.12); }
  .btn svg { width: 18px; height: 18px; fill: currentColor; }

  /* hero visual */
  .hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    gap: 14px;
    height: 460px;
  }
  .hero-visual .phone-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 50%;
  }
  .hero-visual .phone-col:nth-child(2) { margin-top: 40px; }
  .hero-visual .shot {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
    flex: 1;
    position: relative;
  }
  .hero-visual .shot img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
  }
  .hero-visual .shot:hover img { transform: scale(1.05); }
  .hero-visual .shot::after {
    content: "";
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(11,12,16,0.75), transparent 55%);
  }

  /* ============ SECTION COMMON ============ */
  section { position: relative; }
  .section-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 76px 20px;
  }
  .section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 38px;
  }
  .section-head h2 {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 0.4px;
  }
  .section-head h2 em {
    font-style: normal;
    color: var(--brand);
  }
  .section-head p {
    font-size: 14px;
    color: var(--text-sub);
    max-width: 480px;
  }
  .kicker {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--brand);
    margin-bottom: 8px;
    text-transform: uppercase;
  }

  /* ============ AI 短剧 ============ */
  .ai-block {
    background: linear-gradient(180deg, #0e1017, #0b0c10);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .ai-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
  }
  .ai-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s, border-color .3s;
  }
  .ai-card:hover { transform: translateY(-5px); border-color: rgba(255, 92, 138, 0.45); }
  .ai-card .thumb {
    aspect-ratio: 3 / 4;
    overflow: hidden;
    position: relative;
  }
  .ai-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
  .ai-card .thumb .score {
    position: absolute;
    top: 10px; right: 10px;
    font-size: 12px;
    font-weight: 700;
    color: #ffd76b;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 215, 107, 0.4);
    padding: 2px 8px;
    border-radius: 20px;
  }
  .ai-card .body { padding: 14px 14px 18px; }
  .ai-card h3 { font-size: 15.5px; margin-bottom: 6px; font-weight: 700; }
  .ai-card .meta {
    font-size: 12px;
    color: var(--text-sub);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
  }
  .ai-card .meta i {
    font-style: normal;
    color: var(--accent);
    background: rgba(89, 209, 255, 0.1);
    padding: 0 7px;
    border-radius: 4px;
  }
  .ai-card .desc { font-size: 13px; color: #b9c1d0; line-height: 1.65; }

  /* ============ 热播榜单 ============ */
  .hot-block { background: #0a0b10; }
  .hot-layout {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 18px;
  }
  .hot-feature {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--line);
    grid-row: span 2;
    min-height: 440px;
    display: flex;
    align-items: flex-end;
  }
  .hot-feature img {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
    object-fit: cover;
  }
  .hot-feature .info {
    position: relative;
    padding: 24px;
    background: linear-gradient(to top, rgba(8,9,13,0.95), rgba(8,9,13,0.15));
    width: 100%;
  }
  .hot-feature .info h3 { font-size: 22px; margin-bottom: 8px; }
  .hot-feature .info p { font-size: 13.5px; color: #c5ccd9; }
  .hot-feature .info .tags { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
  .hot-feature .info .tags span {
    font-size: 12px; padding: 3px 10px; border-radius: 20px;
    background: rgba(255, 92, 138, 0.16); color: #ffb8cc;
  }
  .hot-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 12px;
    display: flex;
    gap: 12px;
    transition: background .25s;
  }
  .hot-item:hover { background: var(--bg-soft); }
  .hot-item img {
    width: 64px;
    height: 84px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
  }
  .hot-item h4 { font-size: 14px; margin-bottom: 4px; }
  .hot-item p { font-size: 12px; color: var(--text-sub); line-height: 1.55; }
  .hot-item .row-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
  .hot-item .row-tags span {
    font-size: 11px; color: #9fdcff;
    background: rgba(89, 209, 255, 0.09);
    padding: 1px 7px; border-radius: 4px;
  }

  /* ============ 安装步骤 ============ */
  .install-block {
    background:
      radial-gradient(circle at 90% 0%, rgba(255, 92, 138, 0.12), transparent 45%),
      #0e1017;
    border-top: 1px solid var(--line);
  }
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 22px;
    overflow: hidden;
    transition: transform .3s, border-color .3s;
  }
  .step-card:hover { transform: translateY(-4px); border-color: rgba(89,209,255,0.4); }
  .step-card .num {
    position: absolute;
    top: 10px; right: 16px;
    font-size: 52px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.05);
    line-height: 1;
  }
  .step-card h3 { font-size: 16.5px; margin-bottom: 10px; color: #fff; }
  .step-card p { font-size: 13.5px; color: var(--text-sub); }

  /* ============ FAQ ============ */
  .faq-block { background: #0a0b10; }
  .faq-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .faq-item {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px 20px;
  }
  .faq-item strong {
    display: block;
    font-size: 14.5px;
    margin-bottom: 8px;
    color: #fff;
  }
  .faq-item strong::before {
    content: "Q";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px; height: 20px;
    background: var(--brand);
    color: #fff;
    font-size: 11px;
    border-radius: 6px;
    margin-right: 8px;
    vertical-align: 1px;
  }
  .faq-item p { font-size: 13.5px; color: var(--text-sub); }

  /* ============ 用户热评 ============ */
  .review-block {
    background: linear-gradient(180deg, #0c0d13, #0b0c10);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .review-card {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-left: 3px solid var(--brand);
    border-radius: var(--radius-sm);
    padding: 18px;
  }
  .review-card .who {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
  }
  .review-card .avatar {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--accent));
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700; color: #11131a;
    flex-shrink: 0;
  }
  .review-card .who span { font-size: 13.5px; color: #fff; }
  .review-card p { font-size: 13px; color: var(--text-sub); }

  /* ============ 隐私安全 ============ */
  .privacy-block { background: #0a0b10; }
  .privacy-wrap {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 40px;
    align-items: start;
  }
  .privacy-intro h2 { font-size: 27px; margin-bottom: 14px; }
  .privacy-intro p { font-size: 14px; color: var(--text-sub); margin-bottom: 14px; }
  .privacy-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
  .privacy-tags span {
    font-size: 12.5px;
    padding: 7px 14px;
    border-radius: 30px;
    border: 1px solid rgba(89, 209, 255, 0.28);
    color: #9fdcff;
    background: rgba(89, 209, 255, 0.07);
  }
  .privacy-qa { display: flex; flex-direction: column; gap: 12px; }
  .privacy-qa .qa {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
  }
  .privacy-qa .qa b { display: block; font-size: 13.5px; color: #fff; margin-bottom: 6px; }
  .privacy-qa .qa span { font-size: 13px; color: var(--text-sub); }

  /* ============ 创作者计划 ============ */
  .creator-block {
    background:
      radial-gradient(circle at 10% 100%, rgba(120, 70, 255, 0.16), transparent 55%),
      #0e1017;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .creator-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: center;
  }
  .creator-copy h2 { font-size: 27px; margin-bottom: 14px; }
  .creator-copy p { font-size: 14px; color: var(--text-sub); margin-bottom: 14px; }
  .creator-list { display: flex; flex-direction: column; gap: 12px; margin-top: 20px; }
  .creator-list li {
    display: flex; gap: 12px;
    font-size: 13.5px; color: #c8cfdd;
  }
  .creator-list li b {
    flex-shrink: 0;
    width: 24px; height: 24px;
    border-radius: 7px;
    background: rgba(255, 92, 138, 0.15);
    color: var(--brand);
    font-size: 12px;
    display: flex; align-items: center; justify-content: center;
  }
  .creator-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
  }
  .creator-visual img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--line);
  }
  .creator-visual img:nth-child(2),
  .creator-visual img:nth-child(5) { transform: translateY(16px); }

  /* ============ 交流社区 ============ */
  .community-block { background: #0a0b10; }
  .community-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
  }
  .community-layout h2 { font-size: 27px; margin-bottom: 14px; }
  .community-layout > div > p { font-size: 14px; color: var(--text-sub); margin-bottom: 20px; }
  .community-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .community-points div {
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
  }
  .community-points div strong { display: block; font-size: 14px; color: #fff; margin-bottom: 4px; }
  .community-points div p { font-size: 12.5px; color: var(--text-sub); }
  .community-note {
    background: linear-gradient(135deg, rgba(255,92,138,0.14), rgba(89,209,255,0.10));
    border: 1px solid rgba(255, 92, 138, 0.22);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .community-note h3 { font-size: 18px; margin-bottom: 10px; }
  .community-note p { font-size: 13.5px; color: #cdd4e2; }

  /* ============ 下载区 ============ */
  .download-block {
    background:
      radial-gradient(circle at 50% 0%, rgba(255, 92, 138, 0.18), transparent 55%),
      #0b0c10;
    padding-bottom: 20px;
  }
  .download-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 76px 20px;
    text-align: center;
  }
  .download-inner h2 { font-size: 30px; margin-bottom: 14px; }
  .download-inner > p {
    font-size: 14.5px;
    color: var(--text-sub);
    max-width: 620px;
    margin: 0 auto 24px;
  }
  .pre-install {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 0 auto 34px;
    text-align: left;
    max-width: 860px;
  }
  .pre-install div {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-size: 13px;
    color: #c4ccda;
  }
  .pre-install div b { display: block; color: #fff; margin-bottom: 4px; font-size: 13.5px; }
  .download-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }
  .download-buttons .btn { padding: 14px 26px; font-size: 15px; }

  /* ============ FOOTER ============ */
  .site-footer {
    border-top: 1px solid var(--line);
    background: #08090d;
    padding: 28px 20px 34px;
  }
  .footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
  }
  .footer-inner p {
    font-size: 12px;
    color: #6b7385;
    line-height: 1.9;
  }
  .footer-inner a {
    color: #8a93a6;
    border-bottom: 1px dotted #3d4350;
  }
  .footer-inner a:hover { color: var(--brand); }
  .footer-inner time { font-size: 12px; color: #6b7385; }

  /* ============ RESPONSIVE ============ */
  @media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 36px; }
    .hero h1 { font-size: 36px; }
    .hero-visual { height: 380px; max-width: 460px; margin: 0 auto; }
    .ai-grid { grid-template-columns: repeat(2, 1fr); }
    .hot-layout { grid-template-columns: 1fr 1fr; }
    .hot-feature { grid-column: span 2; grid-row: auto; min-height: 320px; }
    .privacy-wrap { grid-template-columns: 1fr; gap: 26px; }
    .creator-layout { grid-template-columns: 1fr; }
    .community-layout { grid-template-columns: 1fr; }
    .section-head h2 { font-size: 24px; }
    .main-nav a { font-size: 12.5px; padding: 5px 8px; }
  }

  @media (max-width: 768px) {
    .header-inner { padding: 10px 16px; }
    .logo-link { font-size: 17px; }
    .logo-link img { height: 28px; }
    .nav-toggle { display: block; }
    .main-nav {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: rgba(11, 12, 16, 0.97);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
      padding: 12px 16px 18px;
      flex-direction: column;
      align-items: stretch;
      gap: 4px;
    }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 10px 12px; font-size: 14px; border-radius: 10px; }
    .nav-cta { text-align: center; margin-top: 6px; }

    .hero { padding: 46px 16px 60px; }
    .hero h1 { font-size: 29px; }
    .hero-desc { font-size: 14px; }
    .hero-visual { height: 300px; gap: 10px; }
    .hero-visual .phone-col:nth-child(2) { margin-top: 26px; }
    .btn { padding: 12px 18px; font-size: 13.5px; }

    .section-inner { padding: 52px 16px; }
    .section-head { margin-bottom: 26px; }
    .section-head h2 { font-size: 22px; }
    .section-head p { font-size: 13px; }

    .ai-grid { grid-template-columns: 1fr; gap: 14px; }
    .hot-layout { grid-template-columns: 1fr; }
    .hot-feature { grid-column: auto; min-height: 280px; }
    .steps-grid { grid-template-columns: 1fr; }
    .faq-list { grid-template-columns: 1fr; }
    .review-grid { grid-template-columns: 1fr; }
    .creator-visual { grid-template-columns: repeat(2, 1fr); }
    .creator-visual img { height: 130px; }
    .creator-visual img:nth-child(2),
    .creator-visual img:nth-child(5) { transform: none; }
    .community-points { grid-template-columns: 1fr; }
    .pre-install { grid-template-columns: 1fr; }
    .download-inner { padding: 52px 16px; }
    .download-inner h2 { font-size: 23px; }
    .download-buttons { flex-direction: column; align-items: stretch; }
    .download-buttons .btn { justify-content: center; }
  }