:root {
    --bg: #0b0a12;
    --bg-soft: #14121f;
    --card: #1a1729;
    --line: rgba(255,255,255,.08);
    --text: #eceaf5;
    --muted: #a5a0bb;
    --accent: #ff7a3c;
    --accent-2: #b45cff;
    --accent-3: #3ce0b8;
    --radius: 16px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
  }
  img { display: block; max-width: 100%; }
  a { color: inherit; text-decoration: none; }
  .wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }

  /* HEADER */
  .site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(11,10,18,.86);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line);
  }
  .header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 62px;
  }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: .5px; }
  .brand img { height: 32px; width: auto; border-radius: 8px; }
  .nav-links { display: flex; gap: 22px; font-size: 14px; color: var(--muted); }
  .nav-links a { transition: color .2s; }
  .nav-links a:hover { color: var(--accent); }
  .nav-toggle { display: none; background: none; border: 1px solid var(--line); color: var(--text); border-radius: 8px; padding: 6px 10px; font-size: 14px; }

  /* HERO */
  .hero {
    position: relative;
    padding: 70px 0 60px;
    background:
      radial-gradient(700px 420px at 82% 8%, rgba(180,92,255,.28), transparent 65%),
      radial-gradient(600px 400px at 10% 90%, rgba(255,122,60,.20), transparent 65%),
      linear-gradient(180deg, #0d0b16, #0b0a12);
    overflow: hidden;
  }
  .hero::after {
    content: ""; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 52px 52px;
    mask-image: radial-gradient(circle at 50% 30%, #000 20%, transparent 75%);
    pointer-events: none;
  }
  .hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 46px; align-items: center; }
  .hero-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--accent-3);
    border: 1px solid rgba(60,224,184,.35);
    background: rgba(60,224,184,.08);
    padding: 5px 14px; border-radius: 999px;
    margin-bottom: 20px;
  }
  .hero-kicker span { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-3); }
  h1 { font-size: 42px; line-height: 1.25; letter-spacing: .5px; margin-bottom: 18px; }
  h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
  .hero-lead { font-size: 16px; color: var(--muted); max-width: 520px; margin-bottom: 26px; }
  .hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
  .hero-points span {
    font-size: 13px; color: #d8d4e8;
    border: 1px solid var(--line); background: rgba(255,255,255,.04);
    padding: 6px 13px; border-radius: 999px;
  }
  .dl-group { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
  .btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 26px; border-radius: 12px;
    font-size: 15px; font-weight: 600; cursor: pointer;
    transition: transform .18s, box-shadow .18s, background .18s;
  }
  .btn:hover { transform: translateY(-2px); }
  .btn-primary {
    color: #1a0f05;
    background: linear-gradient(135deg, #ffb033, #ff6a3c);
    box-shadow: 0 10px 26px rgba(255,106,60,.32);
  }
  .btn-primary:hover { box-shadow: 0 14px 32px rgba(255,106,60,.45); }
  .btn-ghost {
    color: var(--text);
    background: rgba(255,255,255,.05);
    border: 1px solid var(--line);
  }
  .btn-ghost:hover { background: rgba(255,255,255,.1); }
  .btn-note { font-size: 12px; color: var(--muted); margin-top: 14px; }
  .dl-icon { font-size: 17px; line-height: 1; }

  .hero-visual { position: relative; }
  .phone {
    position: relative;
    width: 100%; max-width: 300px; margin: 0 auto;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,.14);
    background: #100e1b;
    padding: 10px;
    box-shadow: 0 30px 70px rgba(0,0,0,.6), 0 0 0 8px rgba(255,255,255,.03);
  }
  .phone img { border-radius: 21px; aspect-ratio: 3/4; object-fit: cover; width: 100%; }
  .float-card {
    position: absolute; left: -6px; bottom: 26px;
    background: rgba(26,23,41,.92);
    border: 1px solid var(--line);
    border-radius: 12px; padding: 9px 14px;
    font-size: 12px; color: var(--text);
    box-shadow: 0 14px 30px rgba(0,0,0,.45);
  }
  .float-card b { color: var(--accent-3); }
  .float-tag {
    position: absolute; right: -4px; top: 26px;
    background: linear-gradient(135deg, var(--accent-2), #6a3bff);
    border-radius: 10px; padding: 7px 12px;
    font-size: 12px; font-weight: 700; color: #fff;
    box-shadow: 0 12px 26px rgba(180,92,255,.4);
  }

  /* SECTION COMMON */
  section { padding: 68px 0; position: relative; }
  .sec-head { margin-bottom: 34px; max-width: 700px; }
  .sec-tag {
    display: inline-block; font-size: 12px; letter-spacing: 2px;
    color: var(--accent); text-transform: uppercase; margin-bottom: 10px;
  }
  h2 { font-size: 30px; line-height: 1.3; margin-bottom: 12px; }
  h3 { font-size: 18px; margin-bottom: 8px; }
  .sec-desc { color: var(--muted); font-size: 15px; }

  /* THEME / POSTERS */
  .theme-band {
    background: linear-gradient(180deg, #0b0a12, #120f1e 40%, #0b0a12);
  }
  .poster-rail {
    display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px;
  }
  .poster-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .22s, border-color .22s;
  }
  .poster-card:hover { transform: translateY(-6px); border-color: rgba(255,122,60,.45); }
  .poster-card .thumb { position: relative; }
  .poster-card img { aspect-ratio: 3/4; object-fit: cover; width: 100%; }
  .date-chip {
    position: absolute; left: 10px; bottom: 10px;
    font-size: 11px; color: #fff;
    background: rgba(0,0,0,.62);
    border: 1px solid rgba(255,255,255,.18);
    padding: 3px 9px; border-radius: 999px;
  }
  .poster-body { padding: 12px 13px 15px; }
  .poster-body h3 { font-size: 15px; margin-bottom: 6px; }
  .poster-body p { font-size: 12px; color: var(--muted); line-height: 1.6; margin-bottom: 10px; }
  .tags { display: flex; flex-wrap: wrap; gap: 6px; }
  .tags span {
    font-size: 11px; color: #c9bff0;
    background: rgba(180,92,255,.12);
    border: 1px solid rgba(180,92,255,.22);
    padding: 2px 8px; border-radius: 6px;
  }

  /* AI DRAMA */
  .ai-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
  .ai-shot {
    border-radius: 20px; overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: 0 24px 60px rgba(0,0,0,.55);
    position: relative;
  }
  .ai-shot img { width: 100%; object-fit: cover; aspect-ratio: 4/5; }
  .ai-shot::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(11,10,18,.85));
  }
  .ai-list { display: grid; gap: 16px; margin-top: 22px; }
  .ai-item {
    display: flex; gap: 14px;
    background: rgba(255,255,255,.03);
    border: 1px solid var(--line);
    border-radius: 14px; padding: 15px 17px;
  }
  .ai-num {
    flex: 0 0 34px; height: 34px; border-radius: 10px;
    display: grid; place-items: center;
    background: linear-gradient(135deg, rgba(255,122,60,.25), rgba(180,92,255,.25));
    color: var(--accent); font-weight: 700; font-size: 14px;
  }
  .ai-item p { font-size: 13px; color: var(--muted); }

  /* TRENDING */
  .trend-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
  .trend-card {
    background: linear-gradient(180deg, #191527, #14111f);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
  }
  .trend-card img { aspect-ratio: 3/4; object-fit: cover; width: 100%; }
  .trend-card .info { padding: 13px 14px 16px; }
  .trend-card h3 { font-size: 15px; }
  .trend-card p { font-size: 12px; color: var(--muted); margin: 6px 0 10px; }
  .trend-meta { display: flex; justify-content: space-between; align-items: center; font-size: 11px; color: #8f89a8; }

  /* INSTALL STEPS */
  .steps-band { background: linear-gradient(180deg, #0b0a12, #100d1b); }
  .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
  .step {
    position: relative;
    background: #16131f;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 26px 20px 22px;
    overflow: hidden;
  }
  .step::before {
    counter-increment: step;
    content: "0" counter(step);
    position: absolute; right: 14px; top: 8px;
    font-size: 42px; font-weight: 800;
    color: rgba(255,255,255,.05);
    letter-spacing: -2px;
  }
  .step-icon {
    width: 42px; height: 42px; border-radius: 12px;
    display: grid; place-items: center; font-size: 20px;
    background: rgba(255,122,60,.12);
    border: 1px solid rgba(255,122,60,.28);
    margin-bottom: 14px;
  }
  .step h3 { font-size: 15px; }
  .step p { font-size: 13px; color: var(--muted); }

  /* FAQ */
  .faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .faq-item {
    background: #151221;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 18px 20px;
  }
  .faq-item h3 { font-size: 15px; color: #f3efff; display: flex; gap: 10px; }
  .faq-item h3 b { color: var(--accent-2); font-weight: 800; }
  .faq-item p { font-size: 13px; color: var(--muted); margin-top: 8px; padding-left: 25px; }

  /* REVIEWS */
  .review-layout { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .review-card {
    background: linear-gradient(160deg, #1b1629, #14111f);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
  }
  .review-top { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
  .avatar {
    width: 34px; height: 34px; border-radius: 50%;
    display: grid; place-items: center;
    font-size: 14px; font-weight: 700; color: #fff;
    background: linear-gradient(135deg, var(--accent-2), var(--accent));
  }
  .review-top span { font-size: 13px; color: #cfc8e6; }
  .review-card p { font-size: 13px; color: var(--muted); }
  .review-card .reply {
    margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line);
    font-size: 12px; color: #8f89a8;
  }

  /* PRIVACY QA */
  .privacy-band { background: linear-gradient(180deg, #0b0a12, #0f0d18); }
  .privacy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
  .qa { display: grid; gap: 12px; }
  .qa-row {
    background: rgba(255,255,255,.03);
    border-left: 3px solid var(--accent-3);
    border-radius: 10px;
    padding: 13px 16px;
  }
  .qa-row strong { display: block; font-size: 14px; margin-bottom: 4px; }
  .qa-row span { font-size: 13px; color: var(--muted); }
  .privacy-visual {
    border-radius: 18px; overflow: hidden; border: 1px solid var(--line);
    align-self: start;
  }
  .privacy-visual img { width: 100%; aspect-ratio: 4/5; object-fit: cover; }

  /* CREATOR */
  .creator-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
  .creator-visual { border-radius: 20px; overflow: hidden; border: 1px solid var(--line); }
  .creator-visual img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
  .creator-list { display: grid; gap: 14px; margin-top: 20px; }
  .creator-list li {
    list-style: none;
    padding: 12px 16px;
    background: rgba(255,255,255,.03);
    border: 1px solid var(--line);
    border-radius: 12px;
    font-size: 13px; color: var(--muted);
  }
  .creator-list li strong { color: var(--text); }

  /* COMMUNITY */
  .community-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .comm-card {
    background: #151221;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
  }
  .comm-card h3 { font-size: 15px; margin-bottom: 8px; }
  .comm-card p { font-size: 13px; color: var(--muted); }
  .comm-card .bar {
    height: 5px; border-radius: 4px; background: rgba(255,255,255,.07);
    margin-top: 14px; overflow: hidden;
  }
  .comm-card .bar i { display: block; height: 100%; width: 62%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }

  /* FINAL DOWNLOAD */
  .final-band {
    background:
      radial-gradient(600px 300px at 50% 0%, rgba(255,122,60,.18), transparent 70%),
      linear-gradient(180deg, #0f0d18, #0b0a12);
    border-top: 1px solid var(--line);
  }
  .final-inner { text-align: center; max-width: 760px; margin: 0 auto; }
  .final-inner h2 { font-size: 32px; }
  .final-inner .sec-desc { margin: 0 auto 28px; }
  .final-down {
    display: inline-flex; flex-wrap: wrap; gap: 14px; justify-content: center;
    margin-top: 6px;
  }
  .install-hint {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
    margin-bottom: 34px; text-align: left;
  }
  .install-hint div {
    background: rgba(255,255,255,.04);
    border: 1px solid var(--line);
    border-radius: 12px; padding: 14px 16px;
    font-size: 13px; color: var(--muted);
  }
  .install-hint div b { display: block; color: var(--text); font-size: 14px; margin-bottom: 4px; }

  /* FOOTER */
  .site-footer {
    border-top: 1px solid var(--line);
    padding: 30px 0 36px;
    font-size: 12px; color: #7d7795;
  }
  .footer-inner { display: flex; flex-wrap: wrap; gap: 12px 26px; justify-content: space-between; align-items: center; }
  .footer-inner a { color: #8f89a8; }
  .footer-inner a:hover { color: var(--accent); }
  .footer-meta { display: flex; flex-wrap: wrap; gap: 16px; }

  /* RESPONSIVE */
  @media (max-width: 1024px) {
    h1 { font-size: 34px; }
    h2 { font-size: 26px; }
    .hero-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-visual { order: -1; }
    .phone { max-width: 260px; }
    .poster-rail { grid-template-columns: repeat(4, 1fr); }
    .trend-grid { grid-template-columns: repeat(3, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .review-layout { grid-template-columns: repeat(2, 1fr); }
    .ai-layout, .privacy-grid, .creator-layout { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-links { display: none; }
    .nav-links.open { display: flex; position: absolute; top: 62px; left: 0; right: 0; flex-direction: column; gap: 0; background: #100d1b; border-bottom: 1px solid var(--line); padding: 8px 20px 16px; }
    .nav-links.open a { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.05); }
    .nav-toggle { display: block; }
  }
  @media (max-width: 768px) {
    .wrap { padding: 0 16px; }
    section { padding: 52px 0; }
    h1 { font-size: 27px; }
    h2 { font-size: 22px; }
    .hero { padding: 46px 0 44px; }
    .hero-lead { font-size: 15px; }
    .btn { padding: 12px 20px; font-size: 14px; }
    .poster-rail { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .trend-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .steps { grid-template-columns: 1fr; }
    .faq-grid { grid-template-columns: 1fr; }
    .review-layout { grid-template-columns: 1fr; }
    .community-grid { grid-template-columns: 1fr; }
    .install-hint { grid-template-columns: 1fr; }
    .final-inner h2 { font-size: 24px; }
    .float-card { display: none; }
    .footer-inner { flex-direction: column; align-items: flex-start; }
  }