:root{
    --water-top:#eafaf3;
    --water-mid:#d7f1ee;
    --water-bot:#cfe9f6;
    --lily:#79b87a;
    --lily-deep:#4f8f63;
    --frog:#3f7f6b;
    --orange:#f2a05a;
    --ink:#25423c;
    --ink-soft:#4d6b64;
    --card:rgba(255,255,255,0.72);
    --line:rgba(63,127,107,0.18);
    --shadow:0 14px 40px rgba(64,128,118,0.16);
  }
  *{box-sizing:border-box;}
  html,body{margin:0;padding:0;}
  body{
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    color:var(--ink);
    background:linear-gradient(170deg,var(--water-top) 0%,var(--water-mid) 42%,var(--water-bot) 100%);
    background-attachment:fixed;
    line-height:1.75;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  h1,h2,h3{margin:0;line-height:1.3;font-weight:800;}

  /* 水面底纹 */
  .water-bg{
    position:fixed;inset:0;z-index:-2;pointer-events:none;
    background:
      radial-gradient(circle at 18% 22%,rgba(255,255,255,0.65),transparent 45%),
      radial-gradient(circle at 82% 12%,rgba(255,255,255,0.5),transparent 40%),
      radial-gradient(circle at 50% 88%,rgba(160,220,205,0.4),transparent 55%);
  }
  .water-rings{
    position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
    background-image:repeating-radial-gradient(circle at 30% 40%,transparent 0 38px,rgba(255,255,255,0.55) 39px 40px,transparent 41px 82px);
  }

  .wrap{width:min(1180px,92vw);margin:0 auto;}

  /* 顶条 */
  .topbar{
    position:fixed;top:0;left:0;right:0;z-index:60;
    background:rgba(240,253,249,0.78);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(255,255,255,0.6);
    transition:background .4s ease,box-shadow .4s ease;
  }
  .topbar.scrolled{background:rgba(234,250,243,0.55);box-shadow:0 6px 24px rgba(79,143,99,0.12);}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;padding:8px 0;}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.5px;}
  .brand img{height:34px;width:auto;border-radius:10px;}
  .top-dl{
    width:42px;height:42px;border-radius:50%;border:none;cursor:pointer;
    background:linear-gradient(160deg,var(--frog),var(--orange));
    color:#fff;font-size:20px;display:grid;place-items:center;
    box-shadow:0 6px 18px rgba(63,127,107,0.32);
    transition:transform .3s ease;
  }
  .top-dl:hover{transform:scale(1.08);}

  .dl-panel{
    max-height:0;overflow:hidden;transition:max-height .5s ease;
    background:rgba(255,255,255,0.9);
    border-bottom-left-radius:26px;border-bottom-right-radius:26px;
  }
  .dl-panel.open{max-height:420px;}
  .dl-panel-inner{padding:16px 0 22px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
  .dl-cell{background:var(--card);border-radius:20px;padding:14px 16px;border:1px solid var(--line);}
  .dl-cell h3{font-size:15px;margin-bottom:6px;color:var(--frog);}
  .dl-cell p{margin:0;font-size:13px;color:var(--ink-soft);}
  .dl-btn{
    display:inline-block;margin-top:8px;padding:7px 18px;border-radius:20px 20px 20px 6px;
    background:linear-gradient(120deg,var(--frog),var(--orange));color:#fff;font-size:13px;font-weight:700;
  }

  /* 左侧导航岛 */
  .nav-island{
    position:fixed;left:14px;top:50%;transform:translateY(-50%);z-index:50;
    display:flex;flex-direction:column;gap:10px;
  }
  .nav-leaf{
    width:60px;height:60px;border-radius:50% 50% 50% 18px;
    background:rgba(255,255,255,0.68);
    border:1px solid rgba(255,255,255,0.85);
    display:grid;place-items:center;font-size:12px;font-weight:700;color:var(--frog);
    box-shadow:0 8px 18px rgba(79,143,99,0.16);
    transition:transform .3s ease,background .3s ease,border-radius .3s ease;
  }
  .nav-leaf:hover{transform:translateY(-4px) rotate(-4deg);background:rgba(255,255,255,0.95);border-radius:50% 18px 50% 50%;}

  /* Hero */
  .hero{padding:96px 0 60px;text-align:center;position:relative;}
  .hero h1{font-size:clamp(28px,4.6vw,46px);letter-spacing:1px;}
  .hero h1 em{font-style:normal;color:var(--frog);position:relative;}
  .hero h1 em::after{
    content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;
    background:linear-gradient(90deg,rgba(121,184,122,0.35),rgba(242,160,90,0.3));border-radius:8px;z-index:-1;
  }
  .hero-sub{margin:16px auto 6px;max-width:640px;font-size:16px;color:var(--ink-soft);}
  .hero-hint{font-size:13px;color:#6f8a84;margin-top:4px;}

  .hero-water{margin-top:34px;position:relative;display:flex;justify-content:center;align-items:flex-end;gap:0;}
  .lily-pad{
    border-radius:48% 52% 46% 54%/54% 46% 54% 46%;
    background:linear-gradient(160deg,rgba(151,205,150,0.9),rgba(79,143,99,0.85));
    box-shadow:var(--shadow);
    position:relative;
  }
  .pad-side{
    width:clamp(110px,17vw,200px);height:clamp(110px,17vw,200px);
    display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px;
    color:#fff;padding:10px;
  }
  .pad-side .stat-num{font-size:clamp(18px,2.4vw,26px);font-weight:800;}
  .pad-side .stat-label{font-size:12px;opacity:.9;}
  .pad-left{margin-right:-14px;margin-bottom:26px;}
  .pad-right{margin-left:-14px;margin-bottom:42px;}
  .pad-main{
    width:clamp(200px,30vw,300px);height:clamp(280px,42vw,400px);
    border-radius:36% 36% 40% 40%/28% 28% 34% 34%;
    background:linear-gradient(170deg,#a6d8ac,#69a97b);
    display:flex;justify-content:center;align-items:center;padding:16px;
    z-index:2;
  }
  .phone{
    width:82%;height:96%;border-radius:26px;background:#fff;overflow:hidden;
    box-shadow:0 10px 30px rgba(37,66,60,0.3);
    display:flex;flex-direction:column;
  }
  .phone-top{height:26px;background:#eef8f2;display:flex;align-items:center;padding:0 10px;gap:4px;}
  .phone-top i{width:8px;height:8px;border-radius:50%;background:#c7ded2;display:inline-block;}
  .phone-body{flex:1;padding:10px;display:flex;flex-direction:column;gap:8px;}
  .phone-line{height:10px;border-radius:6px;background:#e7f2ec;}
  .phone-line.short{width:60%;}
  .phone-strip{display:grid;grid-template-columns:1fr 1fr;gap:6px;}
  .phone-strip img{width:100%;height:60px;object-fit:cover;border-radius:8px;}
  .bubble{
    position:absolute;border-radius:50%;background:rgba(255,255,255,0.72);
    box-shadow:0 4px 12px rgba(79,143,99,0.16);font-size:11px;color:var(--frog);
    display:grid;place-items:center;padding:6px;text-align:center;
  }
  .bubble.b1{width:64px;height:64px;left:8%;top:6%;}
  .bubble.b2{width:52px;height:52px;right:10%;top:20%;}
  .bubble.b3{width:46px;height:46px;left:16%;bottom:10%;}
  .hero-fade{height:60px;background:linear-gradient(180deg,transparent,rgba(207,233,246,0.9));margin-top:-30px;}

  /* 通用区块 */
  section{padding:56px 0;position:relative;}
  .sec-head{text-align:center;margin-bottom:34px;}
  .sec-head h2{font-size:clamp(22px,3vw,30px);}
  .sec-head p{margin:10px auto 0;max-width:600px;color:var(--ink-soft);font-size:15px;}

  /* 荷叶群分类 */
  .pad-cluster{position:relative;display:flex;flex-wrap:wrap;justify-content:center;gap:26px;min-height:340px;align-items:center;}
  .cat-pad{
    border-radius:50%;background:linear-gradient(155deg,rgba(255,255,255,0.85),rgba(160,212,168,0.85));
    border:1px solid rgba(255,255,255,0.9);box-shadow:var(--shadow);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
    cursor:pointer;transition:transform .4s ease,box-shadow .4s ease;
    padding:12px;text-align:center;
  }
  .cat-pad:nth-child(1){width:200px;height:200px;}
  .cat-pad:nth-child(2){width:160px;height:160px;}
  .cat-pad:nth-child(3){width:180px;height:180px;}
  .cat-pad:nth-child(4){width:150px;height:150px;}
  .cat-pad:nth-child(5){width:170px;height:170px;}
  .cat-pad .cat-name{font-size:16px;font-weight:800;color:var(--lily-deep);}
  .cat-pad .cat-desc{font-size:12px;color:var(--ink-soft);}
  .cat-pad .heat{width:60%;height:6px;border-radius:4px;background:rgba(255,255,255,0.7);overflow:hidden;}
  .cat-pad .heat i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--lily),var(--orange));}
  .cat-pad:hover{transform:translateY(-8px) scale(1.06);box-shadow:0 20px 46px rgba(79,143,99,0.26);}
  .cat-covers{display:none;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px;}
  .cat-covers.show{display:grid;}
  .cat-covers img{width:100%;height:130px;object-fit:cover;border-radius:14px;}

  /* 浮标排行 */
  .rank-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
  .buoy{position:relative;padding-top:18px;}
  .buoy::before{
    content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
    width:10px;height:38px;border-radius:6px;background:linear-gradient(180deg,var(--frog),var(--orange));
  }
  .rank-card{
    background:var(--card);border-radius:22px;border:1px solid var(--line);
    padding:14px;box-shadow:var(--shadow);position:relative;
    display:grid;grid-template-columns:64px 1fr;gap:12px;align-items:center;
    transition:transform .3s ease;
  }
  .buoy:hover .rank-card{transform:translateY(-6px);}
  .rank-card img{width:64px;height:86px;object-fit:cover;border-radius:12px;}
  .rank-card .info h3{font-size:15px;margin-bottom:4px;}
  .rank-card .info p{margin:0;font-size:12px;color:var(--ink-soft);}
  .seal{
    position:absolute;top:-10px;left:-10px;width:32px;height:32px;border-radius:50%;
    background:var(--orange);color:#fff;font-weight:800;font-size:14px;display:grid;place-items:center;
    box-shadow:0 4px 12px rgba(242,160,90,0.5);
  }
  .buoy:nth-child(1) .seal{background:linear-gradient(140deg,#f6c453,#d99a2b);}
  .buoy:nth-child(2) .seal{background:linear-gradient(140deg,#cfd8dc,#97a6ac);}
  .buoy:nth-child(3) .seal{background:linear-gradient(140deg,#dda06a,#b07840);}

  /* 涟漪推荐 */
  .ripple-area{position:relative;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:30px;}
  .ripple-ring{
    border-radius:50%;display:flex;justify-content:center;align-items:center;
    background:radial-gradient(circle,rgba(255,255,255,0.85),rgba(255,255,255,0.25));
    border:2px solid rgba(255,255,255,0.9);box-shadow:var(--shadow);
    transition:transform .4s ease;
    padding:14px;
  }
  .ripple-ring.big{width:260px;height:260px;}
  .ripple-ring.small{width:170px;height:170px;}
  .ripple-ring:hover{transform:scale(1.06);}
  .ripple-ring img{width:100%;height:100%;object-fit:cover;border-radius:50%;}

  /* 气泡特色 */
  .bubble-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;align-items:center;}
  .b-card{
    background:rgba(255,255,255,0.62);border-radius:26px 26px 26px 8px;
    border:1px solid rgba(255,255,255,0.95);box-shadow:var(--shadow);
    padding:20px;transition:transform .35s ease;
  }
  .b-card:nth-child(1){width:240px;}
  .b-card:nth-child(2){width:220px;transform:translateY(18px);}
  .b-card:nth-child(3){width:250px;}
  .b-card:nth-child(4){width:215px;transform:translateY(24px);}
  .b-card:hover{transform:translateY(-8px);}
  .b-ico{width:40px;height:40px;border-radius:50%;background:linear-gradient(140deg,var(--lily),var(--orange));display:grid;place-items:center;color:#fff;font-weight:800;margin-bottom:10px;}
  .b-card h3{font-size:16px;margin-bottom:6px;}
  .b-card p{margin:0;font-size:13px;color:var(--ink-soft);}

  /* 王座会员 */
  .throne{
    max-width:860px;margin:0 auto;background:linear-gradient(150deg,rgba(255,255,255,0.92),rgba(200,232,208,0.92));
    border-radius:28px;padding:0 26px 26px;box-shadow:var(--shadow);position:relative;
  }
  .throne-canopy{height:26px;border-radius:26px 26px 0 0;background:linear-gradient(90deg,var(--lily-deep),var(--lily));margin:0 -26px 18px;}
  .throne-inner{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:center;}
  .throne-perks{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-soft);}
  .throne-perks span{display:flex;gap:8px;align-items:flex-start;}
  .throne-perks span::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);margin-top:8px;flex:none;}
  .throne-cta{text-align:center;}
  .drop-btn{
    display:inline-block;padding:14px 34px;border-radius:48% 52% 48% 52%/60% 60% 40% 40%;
    background:linear-gradient(130deg,var(--frog),var(--orange));color:#fff;font-weight:800;font-size:16px;
    box-shadow:0 10px 26px rgba(242,160,90,0.4);transition:transform .3s ease;
  }
  .drop-btn:hover{transform:translateY(-3px) scale(1.03);}
  .throne-cta small{display:block;margin-top:8px;color:#7d968f;font-size:12px;}

  /* 全端浮萍 */
  .duck-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .duck{
    border-radius:50% 50% 44% 56%/56% 44% 56% 44%;
    background:rgba(255,255,255,0.68);border:1px solid rgba(255,255,255,0.95);
    padding:26px 18px;text-align:center;box-shadow:var(--shadow);transition:transform .4s ease;
  }
  .duck:hover{transform:rotate(4deg) translateY(-6px);}
  .duck .duck-ico{font-size:22px;margin-bottom:6px;}
  .duck h3{font-size:15px;margin-bottom:4px;}
  .duck p{margin:0;font-size:12px;color:var(--ink-soft);}

  /* 跃水下载 */
  .splash{
    max-width:900px;margin:0 auto;background:linear-gradient(160deg,rgba(255,255,255,0.9),rgba(214,240,238,0.9));
    border-radius:40px 40px 40px 40px;padding:32px;box-shadow:var(--shadow);
    display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:center;
  }
  .splash h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:10px;}
  .splash p{color:var(--ink-soft);font-size:14px;margin:0 0 18px;}
  .store-row{display:flex;flex-wrap:wrap;gap:14px;}
  .store-btn{
    display:inline-block;padding:12px 26px;border-radius:26px 26px 26px 8px;
    background:linear-gradient(125deg,var(--frog),var(--orange));color:#fff;font-weight:700;font-size:15px;
    box-shadow:0 8px 20px rgba(63,127,107,0.3);transition:transform .3s ease;
  }
  .store-btn:hover{transform:translateY(-3px);}
  .qr-box{
    width:150px;height:150px;margin:0 auto;border-radius:18px;background:#fff;
    border:2px dashed rgba(79,143,99,0.4);display:grid;place-items:center;text-align:center;
    font-size:12px;color:#7d968f;padding:8px;
  }
  .qr-wrap{text-align:center;}
  .qr-wrap small{display:block;margin-top:10px;color:#7d968f;font-size:12px;}

  /* Footer */
  footer{
    margin-top:40px;padding:44px 0 26px;
    background:linear-gradient(180deg,rgba(37,66,60,0.0),rgba(37,66,60,0.88));
    color:#dceee6;
  }
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:26px;}
  .foot-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;margin-bottom:10px;}
  .foot-brand img{height:32px;width:auto;border-radius:8px;}
  .foot-brand-text{font-size:13px;line-height:1.9;color:#b9d3ca;max-width:300px;}
  .foot-col h3{font-size:14px;margin-bottom:10px;color:#f0fbf6;}
  .foot-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#b9d3ca;}
  .foot-bottom{border-top:1px solid rgba(255,255,255,0.14);margin-top:30px;padding-top:16px;font-size:12px;color:#a9c6bc;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;}
  .foot-bottom .upd{font-size:12px;opacity:.8;}

  @media (max-width:1023px){
    .nav-island{left:8px;gap:6px;}
    .nav-leaf{width:52px;height:52px;font-size:11px;}
    .pad-cluster{min-height:auto;}
    .rank-row{grid-template-columns:1fr;}
    .duck-grid{grid-template-columns:repeat(2,1fr);}
    .foot-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:767px){
    .nav-island{
      left:0;right:0;bottom:0;top:auto;transform:none;flex-direction:row;
      justify-content:space-around;background:rgba(240,253,249,0.92);
      padding:8px 10px;border-top-left-radius:22px;border-top-right-radius:22px;
      box-shadow:0 -6px 20px rgba(79,143,99,0.14);
    }
    .nav-leaf{width:auto;height:auto;min-width:56px;padding:8px 10px;border-radius:20px;font-size:11px;}
    .hero{padding:80px 0 30px;}
    .hero-water{flex-direction:column;align-items:center;gap:18px;}
    .pad-left,.pad-right{margin:0;}
    .pad-main{width:min(260px,78vw);height:340px;}
    .bubble{display:none;}
    .dl-panel-inner{grid-template-columns:1fr;}
    .throne-inner{grid-template-columns:1fr;}
    .splash{grid-template-columns:1fr;}
    .foot-grid{grid-template-columns:1fr;}
    .cat-pad:nth-child(n){width:140px;height:140px;}
    .pad-cluster{gap:14px;}
    .cat-covers{grid-template-columns:repeat(3,1fr);}
    .ripple-ring.big{width:220px;height:220px;}
    .ripple-ring.small{width:140px;height:140px;}
    footer{padding-bottom:70px;}
  }