:root{
    --pink:#ff4d8d;
    --pink-soft:#ffe0ec;
    --yellow:#ffcf3f;
    --yellow-soft:#fff6d9;
    --blue:#2f6bff;
    --blue-soft:#e2ecff;
    --ink:#1b1b22;
    --ink-soft:#4a4a58;
    --paper:#fffdf8;
    --line:#1b1b22;
    --radius:18px;
    --checker-a:#1b1b22;
    --checker-b:#ffffff;
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    background:var(--paper);
    color:var(--ink);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}

  /* ===== 棋盘格装饰 ===== */
  .checker{
    background-image:
      linear-gradient(45deg,var(--checker-a) 25%,transparent 25%,transparent 75%,var(--checker-a) 75%),
      linear-gradient(45deg,var(--checker-a) 25%,transparent 25%,transparent 75%,var(--checker-a) 75%);
    background-size:22px 22px;
    background-position:0 0,11px 11px;
    background-color:var(--checker-b);
  }

  /* ===== 顶部导航 ===== */
  .site-header{
    position:sticky;top:0;z-index:100;
    background:rgba(255,253,248,.94);
    backdrop-filter:blur(10px);
    border-bottom:3px solid var(--line);
  }
  .header-inner{
    max-width:1200px;margin:0 auto;
    display:flex;align-items:center;gap:18px;
    padding:10px 18px;flex-wrap:wrap;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand img{height:34px;width:auto;border-radius:8px;}
  .brand-name{font-size:20px;font-weight:900;letter-spacing:.5px;}
  .brand-name em{color:var(--pink);font-style:normal;}
  .nav-links{
    display:flex;gap:6px;flex-wrap:wrap;flex:1;
    font-size:13.5px;
  }
  .nav-links a{
    padding:6px 11px;border-radius:999px;
    border:2px solid transparent;
    color:var(--ink-soft);font-weight:700;
    transition:.2s;white-space:nowrap;
  }
  .nav-links a:hover{
    background:var(--yellow-soft);
    border-color:var(--line);
    color:var(--ink);
    transform:translateY(-1px);
  }

  /* ===== 首屏 ===== */
  .hero{
    position:relative;overflow:hidden;
    padding:44px 18px 52px;
    border-bottom:3px solid var(--line);
    background:
      radial-gradient(circle at 12% 18%,var(--pink-soft) 0,transparent 42%),
      radial-gradient(circle at 88% 12%,var(--blue-soft) 0,transparent 44%),
      radial-gradient(circle at 60% 92%,var(--yellow-soft) 0,transparent 46%),
      var(--paper);
  }
  .hero-inner{
    max-width:1200px;margin:0 auto;
    display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  }
  .hero-tag{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--yellow);border:3px solid var(--line);
    border-radius:999px;padding:5px 16px;
    font-weight:900;font-size:13px;
    box-shadow:4px 4px 0 var(--line);
    transform:rotate(-1.5deg);
    margin-bottom:18px;
  }
  .hero h1{
    font-size:clamp(30px,4.4vw,52px);
    line-height:1.18;font-weight:900;letter-spacing:-.5px;
    margin-bottom:16px;
  }
  .hero h1 .hl-pink{color:var(--pink);}
  .hero h1 .hl-blue{color:var(--blue);}
  .hero-desc{
    font-size:16.5px;color:var(--ink-soft);
    max-width:520px;margin-bottom:26px;
  }
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px;}
  .btn{
    display:inline-flex;align-items:center;gap:10px;
    padding:13px 26px;border-radius:14px;
    font-size:16px;font-weight:900;
    border:3px solid var(--line);
    box-shadow:5px 5px 0 var(--line);
    transition:.15s;cursor:pointer;
  }
  .btn:hover{transform:translate(3px,3px);box-shadow:2px 2px 0 var(--line);}
  .btn-android{background:var(--yellow);color:var(--ink);}
  .btn-ios{background:#fff;color:var(--ink);}
  .btn-ios .ico{display:inline-block;font-size:18px;line-height:1;}
  .hero-facts{
    display:flex;gap:10px;flex-wrap:wrap;font-size:13px;font-weight:700;color:var(--ink-soft);
  }
  .hero-facts span{
    background:#fff;border:2px solid var(--line);border-radius:999px;padding:3px 12px;
  }

  /* 首屏拼贴 */
  .hero-collage{
    position:relative;
    display:grid;grid-template-columns:repeat(3,1fr);gap:10px;
    padding:14px;border:3px solid var(--line);border-radius:22px;
    background:#fff;
    box-shadow:10px 10px 0 var(--blue);
  }
  .hero-collage .shot{
    border-radius:12px;overflow:hidden;border:2px solid var(--line);
    background:var(--pink-soft);
  }
  .hero-collage .shot img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4;}
  .hero-collage .shot.tall{grid-row:span 2;}
  .hero-collage .shot.tall img{aspect-ratio:3/5;}

  /* ===== 通用区块 ===== */
  .section{max-width:1200px;margin:0 auto;padding:56px 18px;}
  .section-head{margin-bottom:30px;position:relative;}
  .kicker{
    display:inline-block;font-size:13px;font-weight:900;letter-spacing:1px;
    color:var(--pink);background:var(--pink-soft);
    border:2px solid var(--line);border-radius:999px;
    padding:2px 14px;margin-bottom:10px;
  }
  .section-head h2{
    font-size:clamp(24px,3vw,34px);font-weight:900;line-height:1.25;
  }
  .section-head h2 em{color:var(--blue);font-style:normal;}
  .section-head p{margin-top:8px;color:var(--ink-soft);font-size:15.5px;max-width:680px;}

  /* 卡片网格 */
  .grid{display:grid;gap:20px;}
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-4{grid-template-columns:repeat(4,1fr);}
  .grid-2{grid-template-columns:repeat(2,1fr);}

  .card{
    background:#fff;border:3px solid var(--line);border-radius:var(--radius);
    overflow:hidden;box-shadow:6px 6px 0 var(--line);
    transition:.18s;display:flex;flex-direction:column;
  }
  .card:hover{transform:translate(-3px,-3px);box-shadow:9px 9px 0 var(--line);}
  .card-img{position:relative;overflow:hidden;background:var(--yellow-soft);}
  .card-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4;transition:.35s;}
  .card:hover .card-img img{transform:scale(1.04);}
  .badge{
    position:absolute;top:10px;left:10px;
    background:var(--pink);color:#fff;font-size:12px;font-weight:900;
    padding:3px 10px;border-radius:999px;border:2px solid var(--line);
  }
  .badge.blue{background:var(--blue);}
  .badge.yellow{background:var(--yellow);color:var(--ink);}
  .card-body{padding:14px 15px 18px;}
  .card-body h3{font-size:17px;font-weight:900;margin-bottom:6px;line-height:1.35;}
  .card-body p{font-size:13.5px;color:var(--ink-soft);line-height:1.6;}
  .card-meta{
    margin-top:10px;font-size:12px;font-weight:800;color:var(--pink);
    display:flex;gap:8px;flex-wrap:wrap;
  }
  .card-meta span{background:var(--pink-soft);padding:2px 9px;border-radius:999px;}

  /* 水平滚动条 */
  .scroller{
    display:flex;gap:16px;overflow-x:auto;padding:6px 4px 22px;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  }
  .scroller::-webkit-scrollbar{height:8px;}
  .scroller::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
  .scroller .card{flex:0 0 210px;scroll-snap-align:start;}

  /* 分栏图文 */
  .feature-row{
    display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
    margin-bottom:40px;
  }
  .feature-row.reverse .feature-text{order:2;}
  .feature-text h3{font-size:22px;font-weight:900;margin-bottom:10px;}
  .feature-text h3 em{color:var(--pink);font-style:normal;}
  .feature-text p{color:var(--ink-soft);font-size:15px;margin-bottom:12px;}
  .feature-text ul{display:flex;flex-direction:column;gap:8px;}
  .feature-text li{
    font-size:14.5px;padding-left:24px;position:relative;color:var(--ink);
  }
  .feature-text li::before{
    content:"";position:absolute;left:0;top:8px;
    width:12px;height:12px;border-radius:3px;
    background:var(--yellow);border:2px solid var(--line);
  }
  .feature-media{
    border:3px solid var(--line);border-radius:22px;overflow:hidden;
    box-shadow:10px 10px 0 var(--yellow);
    background:var(--blue-soft);
  }
  .feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

  /* 安装教程 */
  .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .step{
    background:#fff;border:3px solid var(--line);border-radius:var(--radius);
    padding:22px 20px;box-shadow:6px 6px 0 var(--pink-soft);
    position:relative;
  }
  .step-num{
    width:44px;height:44px;border-radius:50%;
    background:var(--blue);color:#fff;font-weight:900;font-size:20px;
    display:flex;align-items:center;justify-content:center;
    border:3px solid var(--line);margin-bottom:14px;
  }
  .step:nth-child(2) .step-num{background:var(--pink);}
  .step:nth-child(3) .step-num{background:var(--yellow);color:var(--ink);}
  .step h3{font-size:17px;font-weight:900;margin-bottom:6px;}
  .step p{font-size:13.5px;color:var(--ink-soft);}

  /* 排行榜 */
  .rank-list{display:flex;flex-direction:column;gap:14px;}
  .rank-item{
    display:grid;grid-template-columns:56px 72px 1fr auto;gap:16px;align-items:center;
    background:#fff;border:3px solid var(--line);border-radius:16px;
    padding:12px 16px;box-shadow:5px 5px 0 var(--line);
    transition:.18s;
  }
  .rank-item:hover{transform:translateX(4px);}
  .rank-num{
    font-size:26px;font-weight:900;color:var(--pink);
    text-align:center;font-style:italic;
  }
  .rank-item:nth-child(1) .rank-num{color:#e8175d;}
  .rank-item:nth-child(2) .rank-num{color:var(--blue);}
  .rank-item:nth-child(3) .rank-num{color:#d99b00;}
  .rank-thumb img{
    width:72px;height:96px;object-fit:cover;border-radius:10px;border:2px solid var(--line);
  }
  .rank-info h3{font-size:16px;font-weight:900;margin-bottom:3px;}
  .rank-info p{font-size:13px;color:var(--ink-soft);}
  .rank-tag{
    font-size:12px;font-weight:900;background:var(--yellow-soft);
    border:2px solid var(--line);border-radius:999px;padding:3px 12px;white-space:nowrap;
  }

  /* 评论 */
  .comment-wrap{
    background:
      radial-gradient(circle at 85% 15%,var(--yellow-soft) 0,transparent 50%),
      radial-gradient(circle at 10% 80%,var(--blue-soft) 0,transparent 50%),
      #fff;
    border:3px solid var(--line);border-radius:26px;
    padding:34px 24px;box-shadow:10px 10px 0 var(--line);
    overflow:hidden;
  }
  .comment-track{
    display:flex;gap:18px;width:max-content;
    animation:slide 42s linear infinite;
  }
  .comment-track:hover{animation-play-state:paused;}
  @keyframes slide{
    from{transform:translateX(0);}
    to{transform:translateX(-50%);}
  }
  .comment{
    flex:0 0 320px;background:var(--paper);
    border:2px solid var(--line);border-radius:16px;
    padding:16px 18px;box-shadow:4px 4px 0 var(--pink-soft);
  }
  .comment-top{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
  .avatar{
    width:38px;height:38px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-weight:900;color:#fff;font-size:15px;border:2px solid var(--line);
    flex-shrink:0;
  }
  .comment-user{font-size:14px;font-weight:900;}
  .comment-time{font-size:11.5px;color:#999;}
  .comment-text{font-size:13.5px;color:var(--ink-soft);line-height:1.65;}
  .stars{color:var(--yellow);font-size:13px;letter-spacing:2px;margin-top:8px;}

  /* 问答 */
  .faq{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .faq-item{
    background:#fff;border:3px solid var(--line);border-radius:16px;
    padding:20px 22px;box-shadow:5px 5px 0 var(--blue-soft);
  }
  .faq-item h3{
    font-size:16px;font-weight:900;margin-bottom:8px;
    display:flex;gap:9px;align-items:flex-start;
  }
  .faq-item h3::before{
    content:"问";flex-shrink:0;
    width:22px;height:22px;border-radius:6px;
    background:var(--pink);color:#fff;font-size:12px;
    display:flex;align-items:center;justify-content:center;
    margin-top:3px;
  }
  .faq-item p{font-size:13.5px;color:var(--ink-soft);padding-left:31px;}

  /* 下载 CTA */
  .cta{
    border-top:3px solid var(--line);border-bottom:3px solid var(--line);
    padding:58px 18px;
    background:
      radial-gradient(circle at 20% 30%,var(--pink-soft) 0,transparent 45%),
      radial-gradient(circle at 80% 70%,var(--yellow-soft) 0,transparent 45%),
      var(--blue-soft);
  }
  .cta-inner{max-width:900px;margin:0 auto;text-align:center;}
  .cta h2{font-size:clamp(26px,3.4vw,38px);font-weight:900;margin-bottom:12px;}
  .cta h2 em{color:var(--pink);font-style:normal;}
  .cta p{color:var(--ink-soft);font-size:15.5px;margin-bottom:28px;}
  .cta .hero-actions{justify-content:center;}

  /* 搜索标签 */
  .search-zone{
    max-width:1200px;margin:0 auto;padding:40px 18px 20px;
  }
  .search-zone h2{font-size:18px;font-weight:900;margin-bottom:14px;}
  .search-tags{display:flex;gap:10px;flex-wrap:wrap;}
  .search-tags span{
    font-size:12.5px;color:var(--ink-soft);
    background:#fff;border:2px solid var(--line);border-radius:999px;
    padding:4px 14px;
  }

  /* 页脚 */
  .site-footer{
    border-top:3px solid var(--line);
    background:var(--ink);color:#cfcfd8;
    padding:30px 18px 38px;font-size:12.5px;
  }
  .footer-inner{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:8px;}
  .footer-inner a{color:#ffd166;}
  .footer-inner a:hover{text-decoration:underline;}
  .footer-time{color:#8e8e9c;font-size:11.5px;}

  /* 复制弹窗 */
  .copy-modal{
    position:fixed;inset:0;z-index:999;
    display:none;align-items:center;justify-content:center;
    background:rgba(20,20,26,.6);padding:20px;
  }
  .copy-modal.show{display:flex;}
  .copy-box{
    background:#fff;border:3px solid var(--line);border-radius:20px;
    box-shadow:10px 10px 0 var(--pink);
    padding:26px 24px;max-width:400px;width:100%;
  }
  .copy-box p{font-size:15px;font-weight:900;margin-bottom:14px;color:var(--pink);}
  .copy-input{
    width:100%;padding:11px 13px;border:2px solid var(--line);border-radius:10px;
    font-size:13px;background:var(--yellow-soft);color:var(--ink);
    margin-bottom:14px;word-break:break-all;
  }
  .copy-btn{
    width:100%;padding:12px;border-radius:12px;border:3px solid var(--line);
    background:var(--blue);color:#fff;font-weight:900;font-size:15px;
    cursor:pointer;box-shadow:4px 4px 0 var(--line);transition:.15s;
  }
  .copy-btn:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--line);}
  .copy-close{
    display:block;text-align:center;margin-top:12px;font-size:13px;
    color:var(--ink-soft);cursor:pointer;
  }

  /* ===== 响应式 ===== */
  @media (max-width:1024px){
    .grid-4{grid-template-columns:repeat(2,1fr);}
    .grid-3{grid-template-columns:repeat(2,1fr);}
    .hero-inner{grid-template-columns:1fr;gap:32px;}
    .hero-collage{order:-1;}
    .steps{grid-template-columns:1fr;}
    .faq{grid-template-columns:1fr;}
    .feature-row{grid-template-columns:1fr;gap:22px;}
    .feature-row.reverse .feature-text{order:0;}
  }
  @media (max-width:768px){
    .header-inner{padding:9px 12px;gap:10px;}
    .brand img{height:28px;}
    .brand-name{font-size:17px;}
    .nav-links{font-size:12.5px;gap:4px;}
    .nav-links a{padding:4px 8px;}
    .hero{padding:30px 14px 40px;}
    .hero-collage{grid-template-columns:repeat(3,1fr);box-shadow:6px 6px 0 var(--blue);padding:10px;gap:7px;}
    .section{padding:38px 14px;}
    .grid-3,.grid-4,.grid-2{grid-template-columns:1fr 1fr;}
    .grid-2{grid-template-columns:1fr;}
    .rank-item{grid-template-columns:38px 60px 1fr;gap:12px;padding:10px 12px;}
    .rank-tag{display:none;}
    .rank-thumb img{width:60px;height:80px;}
    .rank-num{font-size:21px;}
    .card-body h3{font-size:15px;}
    .card-body p{font-size:12.5px;}
    .comment{flex:0 0 260px;}
    .comment-wrap{padding:22px 12px;box-shadow:6px 6px 0 var(--line);}
    .btn{padding:11px 18px;font-size:14.5px;}
    .hero-actions{gap:10px;}
  }
  @media (max-width:420px){
    .grid-3,.grid-4{grid-template-columns:1fr;}
  }