:root{--navy:#0e3b55;--blue:#2d9cdb;--teal:#18a999;--orange:#f2994a;--bg:#f5f8fa;--ink:#10202b;--muted:#687780;--line:#dce5e9}*{box-sizing:border-box}body{margin:0;font-family:Arial,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink)}.top{height:72px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 7%;gap:40px;position:sticky;top:0;z-index:2}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:24px;color:var(--navy)}.brand-mark{background:var(--blue);color:#fff;border-radius:12px;padding:7px 10px;font-size:20px}.top nav{display:flex;gap:26px;flex:1}.top nav a{color:var(--muted);text-decoration:none;font-size:15px}.top nav a:hover{color:var(--blue)}button{border:0;cursor:pointer;font:inherit}.login{background:var(--navy);color:#fff;border-radius:8px;padding:10px 18px}.hero{max-width:1160px;margin:42px auto 20px;display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}.hero-copy h1{font-size:46px;line-height:1.12;margin:0 0 18px}.hero-copy p{font-size:20px;color:var(--muted);line-height:1.7}.hero-cta{display:flex;gap:12px;margin-top:24px}.primary{background:var(--blue);color:#fff;padding:14px 24px;border-radius:10px;font-weight:700}.secondary{background:#e9f7fb;color:var(--navy);padding:14px 24px;border-radius:10px;font-weight:700}.hero-art{min-height:290px;background:linear-gradient(135deg,#dff7fb,#c8e8f5);border-radius:24px;position:relative;overflow:hidden}.hero-art:before,.hero-art:after{content:"";position:absolute;border-radius:50%}.hero-art:before{width:250px;height:250px;background:#79d6e8;left:50px;top:20px}.hero-art:after{width:180px;height:180px;background:#2d9cdb;right:50px;bottom:20px}.phone{position:absolute;z-index:1;background:#fff;width:150px;height:230px;border-radius:22px;left:180px;top:30px;padding:20px;box-shadow:0 15px 35px #0e3b5526}.phone .screen{background:#f3f7f8;border-radius:12px;height:75px;margin-bottom:18px}.phone h3{color:var(--navy);text-align:center;margin:0}.section{max-width:1160px;margin:28px auto}.section h2{font-size:28px;margin:0 0 16px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.card h3{margin:0 0 8px;font-size:20px}.card p{margin:0;color:var(--muted);line-height:1.6}.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.stat{background:#fff;padding:20px;border-radius:14px;border:1px solid var(--line)}.stat strong{display:block;font-size:34px;color:var(--blue)}.stat span{color:var(--muted);font-size:14px}.water-panel{background:var(--navy);color:#fff;border-radius:18px;padding:25px;display:grid;grid-template-columns:1fr auto;align-items:center}.water-panel p{color:#cdebf2}.water-btn{background:var(--cyan,#7ed6e8);color:var(--navy);padding:13px 20px;border-radius:10px;font-weight:700}.tabs{display:flex;gap:10px;margin-bottom:15px}.tab{padding:10px 16px;border-radius:20px;background:#e9eef1;color:var(--muted)}.tab.active{background:var(--blue);color:#fff}.service-list,.order-list{display:grid;gap:12px}.service-item,.order-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;justify-content:space-between;align-items:center}.badge{padding:5px 9px;border-radius:12px;font-size:12px;background:#e7f7ee;color:#16864b}.price{font-weight:800;color:var(--orange)}footer{max-width:1160px;margin:50px auto 20px;color:#819099;display:flex;justify-content:space-between;font-size:13px}@media(max-width:800px){.top{padding:0 16px;gap:16px}.top nav{display:none}.hero{margin:22px 16px;grid-template-columns:1fr}.section{margin:22px 16px}.grid,.stat-row{grid-template-columns:1fr 1fr}.hero-copy h1{font-size:36px}.water-panel{grid-template-columns:1fr;gap:14px}footer{margin:30px 16px;display:block;line-height:2}}