:root{
    --bg:#fbf7ef;
    --bg-soft:#f4ede0;
    --ink:#3a2f26;
    --ink-soft:#6d5f52;
    --line:#e6dcc9;
    --warm:#d98452;
    --warm-deep:#b9622f;
    --plum:#a44a5e;
    --sage:#8a9a7b;
    --sky:#7d9aa8;
    --card:#fffdf8;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  .wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px;}

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(251,247,239,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:blur(6px);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:14px;padding:10px 20px;max-width:1120px;margin:0 auto;
  }
  .brand{display:flex;align-items:center;gap:9px;flex-shrink:0;}
  .brand img{height:34px;width:34px;object-fit:cover;border-radius:9px;}
  .brand span{font-size:19px;font-weight:700;letter-spacing:.5px;}
  .nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;flex:1;justify-content:flex-end;}
  .nav::-webkit-scrollbar{display:none;}
  .nav a{
    white-space:nowrap;padding:7px 11px;border-radius:20px;
    font-size:13.5px;color:var(--ink-soft);transition:background .2s,color .2s;
  }
  .nav a:hover{background:var(--bg-soft);color:var(--warm-deep);}
  .nav-toggle{
    display:none;background:none;border:1px solid var(--line);
    border-radius:8px;padding:5px 10px;font-size:14px;color:var(--ink);cursor:pointer;
  }

  /* 首屏 */
  .hero{
    position:relative;overflow:hidden;
    background:
      radial-gradient(circle at 12% 18%, rgba(217,132,82,.18), transparent 42%),
      radial-gradient(circle at 88% 8%, rgba(164,74,94,.14), transparent 40%),
      radial-gradient(circle at 70% 92%, rgba(125,154,168,.16), transparent 45%),
      var(--bg);
    padding:52px 0 44px;
  }
  .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center;}
  .kicker{
    display:inline-block;font-size:13px;letter-spacing:2px;color:var(--warm-deep);
    background:rgba(217,132,82,.14);padding:4px 12px;border-radius:20px;margin-bottom:14px;
  }
  h1{
    font-size:clamp(28px,4.2vw,44px);
    line-height:1.3;margin:0 0 16px;font-weight:800;
    letter-spacing:.5px;
  }
  h1 em{font-style:normal;color:var(--plum);position:relative;}
  h1 em::after{
    content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
    background:rgba(217,132,82,.28);z-index:-1;border-radius:4px;
  }
  .hero p{color:var(--ink-soft);margin:0 0 24px;max-width:33em;}
  .btn-row{display:flex;gap:12px;flex-wrap:wrap;}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:12px 22px;border-radius:30px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s;
  }
  .btn:active{transform:scale(.97);}
  .btn-android{background:var(--warm);color:#fff;box-shadow:0 6px 16px rgba(185,98,47,.28);}
  .btn-android:hover{box-shadow:0 9px 22px rgba(185,98,47,.36);}
  .btn-ios{background:#fff;border-color:var(--line);color:var(--ink);}
  .btn-ios:hover{border-color:var(--warm);color:var(--warm-deep);}
  .btn small{font-weight:400;opacity:.8;font-size:12px;}
  .hero-note{font-size:13px;color:var(--ink-soft);margin-top:14px;}

  .hero-art{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .hero-art figure{
    margin:0;border-radius:16px;overflow:hidden;background:var(--card);
    box-shadow:0 12px 28px rgba(90,68,48,.14);
  }
  .hero-art figure:nth-child(2){transform:translateY(22px);}
  .hero-art img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/4;}

  /* 通用区块 */
  section{padding:56px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-head h2{
    font-size:clamp(22px,3vw,30px);margin:0 0 8px;font-weight:800;letter-spacing:.5px;
  }
  .sec-head h2 span{color:var(--warm-deep);}
  .sec-head p{margin:0;color:var(--ink-soft);font-size:15px;}
  .brush{display:block;width:76px;height:6px;border-radius:6px;margin-top:10px;
    background:linear-gradient(90deg,var(--warm),rgba(217,132,82,0));}

  /* 卡片网格 */
  .grid{display:grid;gap:20px;}
  .g-4{grid-template-columns:repeat(4,1fr);}
  .g-3{grid-template-columns:repeat(3,1fr);}
  .g-2{grid-template-columns:repeat(2,1fr);}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    padding:18px;transition:transform .2s,box-shadow .2s;
  }
  .card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(120,92,64,.12);}
  .card h3{margin:12px 0 6px;font-size:17px;font-weight:700;}
  .card p{margin:0;font-size:14px;color:var(--ink-soft);}
  .poster{
    position:relative;border-radius:12px;overflow:hidden;background:var(--bg-soft);
  }
  .poster img{width:100%;aspect-ratio:3/4;object-fit:cover;}
  .poster .tag{
    position:absolute;left:10px;bottom:10px;font-size:12px;color:#fff;
    background:rgba(58,47,38,.72);padding:3px 9px;border-radius:12px;
  }

  /* 分类横排 */
  .tile{
    display:flex;gap:16px;align-items:center;background:var(--card);
    border:1px solid var(--line);border-radius:16px;padding:14px;
  }
  .tile img{width:88px;aspect-ratio:3/4;object-fit:cover;border-radius:10px;flex-shrink:0;}
  .tile h3{margin:0 0 6px;font-size:17px;}
  .tile p{margin:0;font-size:14px;color:var(--ink-soft);}

  /* 排行榜 */
  .rank-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
  .rank-item{
    display:flex;gap:16px;align-items:center;background:var(--card);
    border:1px solid var(--line);border-radius:14px;padding:12px 16px;
  }
  .rank-num{
    font-size:20px;font-weight:800;color:var(--warm);width:34px;flex-shrink:0;
    font-family:Georgia,serif;
  }
  .rank-item img{width:56px;aspect-ratio:3/4;object-fit:cover;border-radius:8px;flex-shrink:0;}
  .rank-info h3{margin:0 0 3px;font-size:16px;}
  .rank-info p{margin:0;font-size:13px;color:var(--ink-soft);}
  .bar{height:5px;border-radius:5px;background:var(--bg-soft);margin-top:7px;overflow:hidden;max-width:220px;}
  .bar i{display:block;height:100%;border-radius:5px;background:var(--warm);}

  /* 教程步骤 */
  .steps{display:grid;gap:18px;grid-template-columns:repeat(3,1fr);}
  .step{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;}
  .step .no{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:50%;background:rgba(217,132,82,.16);
    color:var(--warm-deep);font-weight:800;font-size:15px;margin-bottom:12px;
  }
  .step h3{margin:0 0 6px;font-size:17px;}
  .step p{margin:0;font-size:14px;color:var(--ink-soft);}

  /* 截图墙 */
  .wall{
    display:grid;grid-template-columns:repeat(6,1fr);gap:12px;
  }
  .wall img{
    width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:12px;
    border:1px solid var(--line);background:var(--bg-soft);
  }

  /* 评论 */
  .comment-band{
    background:linear-gradient(180deg,rgba(244,237,224,.9),rgba(251,247,239,0));
  }
  .comment-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
  .bubble{
    background:var(--card);border:1px solid var(--line);border-radius:18px;
    padding:16px 18px;position:relative;
  }
  .bubble::before{
    content:"";position:absolute;left:22px;bottom:-8px;width:14px;height:14px;
    background:var(--card);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
    transform:rotate(45deg);
  }
  .bubble p{margin:0 0 10px;font-size:14.5px;color:var(--ink);}
  .bubble .who{font-size:12.5px;color:var(--ink-soft);}

  /* 问答 */
  .faq{display:grid;gap:14px;}
  .faq details{
    background:var(--card);border:1px solid var(--line);border-radius:14px;
    padding:14px 18px;
  }
  .faq summary{
    cursor:pointer;font-weight:700;font-size:16px;list-style:none;
    display:flex;justify-content:space-between;gap:12px;align-items:center;
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary::after{content:"＋";color:var(--warm);font-weight:700;}
  .faq details[open] summary::after{content:"－";}
  .faq p{margin:10px 0 0;font-size:14.5px;color:var(--ink-soft);}

  /* 下载区 */
  .download-panel{
    background:radial-gradient(circle at 85% 15%,rgba(164,74,94,.16),transparent 50%),
               radial-gradient(circle at 8% 90%,rgba(217,132,82,.2),transparent 45%),
               var(--bg-soft);
    border-radius:24px;padding:38px 28px;text-align:center;border:1px solid var(--line);
  }
  .download-panel h2{margin:0 0 10px;font-size:clamp(22px,3vw,30px);font-weight:800;}
  .download-panel p{color:var(--ink-soft);margin:0 auto 24px;max-width:34em;font-size:15px;}
  .download-panel .btn-row{justify-content:center;}

  /* 页脚 */
  .site-footer{
    border-top:1px solid var(--line);padding:28px 0 34px;
    font-size:12.5px;color:#9a8d7d;background:var(--bg);
  }
  .site-footer p{margin:0 0 6px;}
  .site-footer a{color:#9a8d7d;}
  .site-footer a:hover{color:var(--warm-deep);}
  .footer-searches{margin:14px 0 16px;font-size:12.5px;line-height:2;color:#a89a89;}

  /* iOS 弹窗 */
  .mask{
    position:fixed;inset:0;background:rgba(40,30,22,.5);z-index:100;
    display:none;align-items:center;justify-content:center;padding:20px;
  }
  .mask.on{display:flex;}
  .dialog{
    width:100%;max-width:420px;background:#fff;border-radius:18px;padding:22px 20px;
    box-shadow:0 20px 50px rgba(0,0,0,.25);
  }
  .dialog h3{margin:0 0 8px;font-size:16px;color:var(--plum);}
  .dialog p{margin:0 0 12px;font-size:14px;color:var(--ink-soft);}
  .copy-box{
    display:flex;gap:8px;align-items:center;border:1px dashed var(--warm);
    border-radius:10px;padding:10px 12px;background:#fff9f2;margin-bottom:14px;
  }
  .copy-box input{
    flex:1;border:none;background:transparent;font-size:13px;color:var(--ink);
    outline:none;min-width:0;
  }
  .copy-btn{
    border:none;background:var(--warm);color:#fff;border-radius:8px;
    padding:7px 14px;font-size:13px;cursor:pointer;flex-shrink:0;
  }
  .dialog-close{
    width:100%;border:1px solid var(--line);background:#fff;border-radius:10px;
    padding:10px;font-size:14px;cursor:pointer;color:var(--ink);
  }

  /* 响应式 */
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:30px;}
    .hero-art{max-width:520px;}
    .g-4{grid-template-columns:repeat(2,1fr);}
    .steps{grid-template-columns:1fr 1fr;}
    .comment-row{grid-template-columns:1fr 1fr;}
    .wall{grid-template-columns:repeat(4,1fr);}
  }
  @media (max-width:767px){
    section{padding:42px 0;}
    .nav-toggle{display:block;}
    .nav{
      position:absolute;left:0;right:0;top:100%;
      flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);
      padding:8px 16px 14px;display:none;box-shadow:0 12px 24px rgba(120,92,64,.1);
    }
    .nav.open{display:flex;}
    .nav a{padding:9px 6px;font-size:14.5px;border-radius:8px;}
    .header-inner{position:relative;}
    .g-4,.g-3,.g-2{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .comment-row{grid-template-columns:1fr;}
    .wall{grid-template-columns:repeat(3,1fr);gap:8px;}
    .hero{padding:36px 0 30px;}
    .brand span{font-size:17px;}
    .tile img{width:74px;}
    .rank-item{padding:10px 12px;gap:12px;}
    .btn{padding:11px 18px;font-size:14.5px;}
  }