:root {
    --night: #071522;
    --night-soft: #0d2133;
    --coral: #ff7a6b;
    --gold: #ffc857;
    --ice: #eaf4ff;
    --ice-dim: #9fb6cc;
    --radius-lg: 24px;
    --radius-md: 18px;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    background: var(--night);
    color: var(--ice);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }

  img { display: block; max-width: 100%; }

  a { text-decoration: none; color: inherit; }

  .wrap {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ============ 顶部品牌 ============ */
  .site-head {
    position: relative;
    z-index: 30;
    padding: 22px 0 0;
  }
  .brand-row {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .brand-row img {
    height: 34px;
    width: auto;
    border-radius: 8px;
  }
  .brand-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--ice);
  }
  .brand-tag {
    margin-left: auto;
    font-size: 12px;
    color: var(--coral);
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 122, 107, 0.12);
  }

  /* ============ 导航条 ============ */
  .nav-bar {
    margin-top: 16px;
    background: rgba(13, 33, 51, 0.85);
    border-radius: 14px;
    padding: 0 10px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .nav-bar::-webkit-scrollbar { display: none; }
  .nav-list {
    display: flex;
    list-style: none;
    gap: 4px;
    padding: 6px 0;
    white-space: nowrap;
  }
  .nav-list a {
    display: inline-block;
    font-size: 11px;
    color: var(--ice-dim);
    padding: 8px 12px 7px;
    border-bottom: 2px solid transparent;
    transition: color .25s, border-color .25s;
  }
  .nav-list a:hover,
  .nav-list a.is-active {
    color: var(--ice);
    border-bottom-color: var(--coral);
  }

  /* ============ 首屏 ============ */
  .hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    margin-top: -96px;
    padding: 150px 0 80px;
    overflow: hidden;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
  }
  .hero-veil {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
      linear-gradient(100deg, rgba(7, 21, 34, 0.97) 0%, rgba(7, 21, 34, 0.85) 42%, rgba(7, 21, 34, 0.45) 100%),
      linear-gradient(to top, var(--night) 2%, rgba(7, 21, 34, 0) 45%);
  }
  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 40px;
    align-items: center;
  }
  .hero-kicker {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--gold);
    background: rgba(255, 200, 87, 0.1);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 22px;
  }
  .hero h1 {
    font-size: 52px;
    line-height: 1.18;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 20px;
  }
  .hero h1 span { color: var(--coral); }
  .hero-desc {
    max-width: 480px;
    font-size: 16px;
    color: #c6d8ea;
    margin-bottom: 30px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 26px;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(120deg, var(--coral), #ff9d7f);
    color: #2a0d08;
    font-weight: 700;
    font-size: 15px;
    padding: 14px 30px;
    border-radius: 999px;
    box-shadow: 0 12px 30px rgba(255, 122, 107, 0.32);
    transition: transform .25s, box-shadow .25s;
  }
  .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 38px rgba(255, 122, 107, 0.45);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    font-size: 15px;
    color: var(--ice);
    background: rgba(234, 244, 255, 0.08);
    transition: background .25s;
  }
  .btn-ghost:hover { background: rgba(234, 244, 255, 0.16); }
  .hero-meta {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 13px;
    color: var(--ice-dim);
  }
  .hero-score {
    color: var(--gold);
    font-weight: 800;
    font-size: 22px;
    line-height: 1;
  }
  .hero-score small {
    font-size: 12px;
    font-weight: 400;
    color: var(--ice-dim);
    margin-left: 4px;
  }

  /* 悬浮手机 */
  .hero-phone {
    position: relative;
    justify-self: center;
    width: 100%;
    max-width: 330px;
  }
  .phone-glow {
    position: absolute;
    inset: -18%;
    background: radial-gradient(circle at 50% 45%, rgba(255, 122, 107, 0.42), rgba(255, 122, 107, 0) 68%);
    filter: blur(8px);
    z-index: 0;
  }
  .phone-shell {
    position: relative;
    z-index: 2;
    border-radius: 34px;
    padding: 9px;
    background: linear-gradient(150deg, rgba(234, 244, 255, 0.35), rgba(234, 244, 255, 0.05));
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
    animation: floaty 6s ease-in-out infinite;
  }
  .phone-shell img {
    width: 100%;
    border-radius: 27px;
  }
  @keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-14px); }
  }
  .badge-score {
    position: absolute;
    top: 8%;
    left: -12%;
    z-index: 3;
    background: rgba(7, 21, 34, 0.86);
    border-radius: 16px;
    padding: 10px 16px;
    text-align: center;
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.5);
  }
  .badge-score strong {
    display: block;
    font-size: 24px;
    color: var(--gold);
    line-height: 1.1;
  }
  .badge-score span { font-size: 10px; color: var(--ice-dim); }
  .badge-version {
    position: absolute;
    bottom: 12%;
    right: -10%;
    z-index: 3;
    background: linear-gradient(120deg, var(--coral), #ff9d7f);
    color: #2a0d08;
    font-size: 12px;
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 999px;
    box-shadow: 0 12px 26px rgba(255, 122, 107, 0.4);
  }
  .play-orb {
    position: absolute;
    top: 47%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(234, 244, 255, 0.16);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
  }
  .play-orb::after {
    content: "";
    width: 0;
    height: 0;
    margin-left: 5px;
    border-style: solid;
    border-width: 11px 0 11px 17px;
    border-color: transparent transparent transparent var(--ice);
  }

  /* ============ 通用 section ============ */
  .section { padding: 88px 0; }
  .sec-head { margin-bottom: 40px; }
  .sec-eyebrow {
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--coral);
    margin-bottom: 10px;
  }
  .sec-head h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
  }
  .sec-head p {
    margin-top: 12px;
    color: var(--ice-dim);
    font-size: 15px;
    max-width: 620px;
  }

  /* ============ 片库横滑 ============ */
  .lib-scroll {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 6px 4px 22px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 122, 107, 0.5) transparent;
  }
  .lib-scroll::-webkit-scrollbar { height: 6px; }
  .lib-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 122, 107, 0.5);
    border-radius: 99px;
  }
  .lib-card {
    flex: 0 0 220px;
    scroll-snap-align: start;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    background: var(--night-soft);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  }
  .lib-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform .5s;
  }
  .lib-card:hover img { transform: scale(1.06); }
  .lib-info {
    position: absolute;
    inset: auto 0 0 0;
    padding: 44px 16px 16px;
    background: linear-gradient(to top, rgba(7, 21, 34, 0.96), rgba(7, 21, 34, 0));
  }
  .lib-info h3 { font-size: 15px; font-weight: 700; }
  .lib-tags {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 6px;
    font-size: 12px;
    color: var(--ice-dim);
  }
  .lib-tags .score { color: var(--gold); font-weight: 700; }

  /* ============ CP 修复 ============ */
  .fix-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .fix-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.55);
  }
  .fix-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .glass-tags {
    position: absolute;
    inset: auto 16px 16px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .glass-tag {
    font-size: 12px;
    padding: 7px 14px;
    border-radius: 999px;
    color: var(--ice);
    background: rgba(234, 244, 255, 0.14);
    backdrop-filter: blur(10px);
    box-shadow: inset 0 0 0 1px rgba(234, 244, 255, 0.18);
  }
  .fix-text h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 18px;
    line-height: 1.32;
  }
  .fix-text p {
    color: var(--ice-dim);
    font-size: 15px;
    margin-bottom: 16px;
  }
  .fix-list {
    list-style: none;
    margin-top: 24px;
    display: grid;
    gap: 14px;
  }
  .fix-list li {
    display: flex;
    gap: 12px;
    font-size: 14px;
    color: #c6d8ea;
  }
  .fix-list li::before {
    content: "";
    flex: 0 0 auto;
    width: 8px;
    height: 8px;
    margin-top: 9px;
    border-radius: 50%;
    background: var(--coral);
  }

  /* ============ 片单网格 ============ */
  .grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
  }
  .poster-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--night-soft);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
    transition: transform .3s;
  }
  .poster-card:hover { transform: translateY(-6px); }
  .poster-card img {
    width: 100%;
    height: 320px;
    object-fit: cover;
  }
  .poster-meta {
    padding: 14px 16px 18px;
  }
  .poster-meta h3 { font-size: 15px; font-weight: 700; }
  .poster-meta p {
    font-size: 12px;
    color: var(--ice-dim);
    margin-top: 4px;
    display: flex;
    justify-content: space-between;
  }
  .poster-meta .score { color: var(--gold); font-weight: 700; }

  /* ============ 为什么 ============ */
  .why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
  .why-card {
    border-radius: var(--radius-lg);
    padding: 32px 26px 34px;
    background: linear-gradient(150deg, rgba(234, 244, 255, 0.09), rgba(234, 244, 255, 0.02));
    box-shadow: inset 0 0 0 1px rgba(234, 244, 255, 0.08), 0 18px 44px rgba(0, 0, 0, 0.35);
  }
  .why-num {
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--gold);
    margin-bottom: 18px;
  }
  .why-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
  }
  .why-card p {
    font-size: 14px;
    color: var(--ice-dim);
  }

  /* ============ 留言 ============ */
  .msg-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .msg-card {
    border-radius: var(--radius-md);
    padding: 26px 24px;
    background: var(--night-soft);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.35);
  }
  .msg-card p {
    font-size: 14px;
    color: #c6d8ea;
    margin-bottom: 16px;
  }
  .msg-user {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--ice-dim);
  }
  .msg-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--coral), var(--gold));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2a0d08;
    font-weight: 700;
    font-size: 13px;
  }

  /* ============ 问答 ============ */
  .faq-list {
    display: grid;
    gap: 14px;
    max-width: 860px;
  }
  .faq-item {
    border-radius: var(--radius-md);
    background: var(--night-soft);
    overflow: hidden;
  }
  .faq-item summary {
    cursor: pointer;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after {
    content: "+";
    color: var(--coral);
    font-size: 20px;
    line-height: 1;
    transition: transform .25s;
  }
  .faq-item[open] summary::after { transform: rotate(45deg); }
  .faq-item p {
    padding: 0 24px 22px;
    font-size: 14px;
    color: var(--ice-dim);
  }

  /* ============ 下载 ============ */
  .download-band {
    border-radius: var(--radius-lg);
    padding: 56px 44px;
    background: linear-gradient(120deg, rgba(255, 122, 107, 0.92), rgba(255, 200, 87, 0.9));
    color: #2a0d08;
    text-align: center;
    box-shadow: 0 26px 60px rgba(255, 122, 107, 0.28);
  }
  .download-band h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 14px;
  }
  .download-band p {
    font-size: 15px;
    max-width: 620px;
    margin: 0 auto 30px;
    color: rgba(42, 13, 8, 0.78);
  }
  .download-btns {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
  }
  .dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #20100b;
    color: var(--ice);
    font-size: 15px;
    font-weight: 700;
    padding: 14px 28px;
    border-radius: 999px;
    transition: transform .25s, box-shadow .25s;
  }
  .dl-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(32, 16, 11, 0.4);
  }
  .dl-btn.is-light {
    background: rgba(255, 255, 255, 0.86);
    color: #2a0d08;
  }
  .dl-note {
    margin-top: 22px;
    font-size: 12px;
    color: rgba(42, 13, 8, 0.62);
  }

  /* ============ 截图墙 ============ */
  .wall {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
  .wall img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.4);
  }
  .wall img.tall { grid-row: span 2; height: 100%; min-height: 496px; }

  /* ============ 页脚 ============ */
  .site-foot {
    padding: 48px 0 40px;
    border-top: 1px solid rgba(234, 244, 255, 0.07);
    margin-top: 30px;
  }
  .foot-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 28px;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: #5f7288;
  }
  .foot-inner p { line-height: 1.8; }
  .foot-inner a { color: #5f7288; }
  .foot-inner a:hover { color: var(--ice-dim); }
  .foot-time { font-size: 12px; color: #4b5c70; }

  /* ============ 响应式 ============ */
  @media (max-width: 1024px) {
    .hero h1 { font-size: 42px; }
    .hero-inner { gap: 28px; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .why-grid, .msg-grid { grid-template-columns: 1fr; }
    .wall { grid-template-columns: repeat(2, 1fr); }
    .wall img.tall { grid-row: auto; height: 240px; min-height: 0; }
    .fix-grid { grid-template-columns: 1fr; gap: 32px; }
    .fix-text h2 { font-size: 28px; }
    .sec-head h2 { font-size: 28px; }
  }

  @media (max-width: 768px) {
    .brand-tag { display: none; }
    .nav-bar {
      position: sticky;
      top: 0;
      z-index: 40;
      border-radius: 0;
      margin: 16px -24px 0;
      padding: 0 14px;
      backdrop-filter: blur(12px);
    }
    .hero {
      margin-top: 0;
      padding: 60px 0 64px;
      min-height: 0;
    }
    .hero-inner {
      grid-template-columns: 1fr;
      gap: 46px;
    }
    .hero h1 { font-size: 34px; }
    .hero-desc { font-size: 15px; }
    .hero-meta { flex-wrap: wrap; gap: 12px; }
    .hero-phone { max-width: 280px; }
    .badge-score { left: -8%; }
    .badge-version { right: -6%; }
    .section { padding: 60px 0; }
    .sec-head h2 { font-size: 25px; }
    .lib-card { flex: 0 0 168px; }
    .lib-card img { height: 236px; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .poster-card img { height: 226px; }
    .download-band { padding: 40px 22px; }
    .download-band h2 { font-size: 26px; }
    .download-btns { flex-direction: column; align-items: stretch; }
    .dl-btn { justify-content: center; }
    .wall { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .wall img, .wall img.tall { height: 170px; }
    .foot-inner { flex-direction: column; align-items: flex-start; }
  }