:root{
  --primary:#0f766e; --primary-dark:#0b5d57; --accent:#f97316; --accent-dark:#ea580c;
  --ink:#0f172a; --muted:#5b6b7c; --line:#e5eaf0; --bg:#f7f9fb; --card:#fff;
  --radius:14px; --shadow:0 6px 24px rgba(15,23,42,.08); --shadow-lg:0 14px 40px rgba(15,23,42,.14);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.5px}
.logo .dot{width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#14b8a6);display:grid;place-items:center;color:#fff;font-size:15px}
.nav-links{display:flex;gap:26px;font-size:15px;color:var(--muted)}
.nav-links a:hover{color:var(--primary)}
.nav-cta{background:var(--primary);color:#fff;padding:9px 18px;border-radius:99px;font-size:14px;font-weight:600}
.nav-cta:hover{background:var(--primary-dark)}
.hero{padding:64px 0 56px;background:linear-gradient(180deg,#fff 0%,#f2f8f7 100%)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;background:#e6f5f2;color:var(--primary-dark);font-size:13px;font-weight:600;padding:6px 14px;border-radius:99px;margin-bottom:20px}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.5px}
h1 em{font-style:normal;color:var(--primary);position:relative}
.lead{font-size:17px;color:var(--muted);margin:20px 0 28px;max-width:520px}
.btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:99px;font-weight:700;font-size:16px;transition:.2s;border:1px solid transparent;cursor:pointer}
.btn-main{background:var(--accent);color:#fff;box-shadow:0 8px 22px rgba(249,115,22,.32)}
.btn-main:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.trust{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.trust span{display:flex;align-items:center;gap:6px}
.trust b{color:var(--primary)}
.hero-media{background:#fff;border-radius:20px;padding:18px;box-shadow:var(--shadow-lg);position:relative}
.hero-media img{border-radius:12px;object-fit:contain;width:100%;height:330px;background:#f2f6f8}
.hero-tag{position:absolute;left:-12px;bottom:26px;background:#fff;border-radius:12px;padding:10px 16px;box-shadow:var(--shadow);font-size:13px;font-weight:600}
.section{padding:64px 0}
.section.alt{background:#fff}
.sec-head{text-align:center;max-width:660px;margin:0 auto 40px}
.sec-head h2{font-size:31px;font-weight:800;letter-spacing:-.3px}
.sec-head p{color:var(--muted);margin-top:12px;font-size:16px}
.pains{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pain{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.pain .ic{font-size:26px;margin-bottom:12px}
.pain h3{font-size:17px;margin-bottom:8px}
.pain p{color:var(--muted);font-size:15px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:s}
.step{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);position:relative}
.step::before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:26px;width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:800}
.step h3{margin:14px 0 8px;font-size:17px}
.step p{color:var(--muted);font-size:15px}
.feat{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.feat div{background:#f8fbfa;border:1px solid #e3efec;border-radius:10px;padding:14px 16px;font-size:15px}
.feat div b{color:var(--primary-dark)}
.tool-band{background:linear-gradient(135deg,#0f766e,#14b8a6);color:#fff;border-radius:20px;padding:44px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;box-shadow:var(--shadow-lg)}
.tool-band h2{font-size:29px;font-weight:800;line-height:1.35}
.tool-band p{opacity:.9;margin:14px 0 24px;font-size:16px}
.tool-band .btn-main{background:#fff;color:var(--primary-dark);box-shadow:none}
.tool-preview{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:14px;padding:20px;font-size:14px}
.tool-preview .row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.28)}
.tool-preview .row:last-child{border-bottom:0}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.card .thumb{height:130px;background:linear-gradient(135deg,#e6f5f2,#d3ecf7);display:grid;place-items:center;font-size:38px}
.card .body{padding:20px;flex:1;display:flex;flex-direction:column}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px;flex:1}
.card .more{color:var(--primary);font-weight:600;font-size:14px;margin-top:14px}
.goods{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.good{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-align:center}
.good .ph{height:110px;border-radius:10px;background:#f2f6f8;display:grid;place-items:center;color:#9fb0bf;font-size:30px;margin-bottom:12px}
.good h4{font-size:15px;font-weight:600}
.good .price{color:var(--accent);font-weight:800;margin:6px 0 10px}
.good .buy{display:block;background:#fff7ed;color:var(--accent-dark);border:1px solid #fed7aa;border-radius:99px;padding:8px;font-size:14px;font-weight:600}
.note{text-align:center;color:var(--muted);font-size:13px;margin-top:18px}
.contact{background:#0f172a;color:#fff}
.contact .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.contact h2{font-size:29px;font-weight:800}
.contact p{color:#a8b6c6;margin:14px 0 24px}
.cbox{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:26px;text-align:center}
.cbox .qr{width:150px;height:150px;background:#fff;border-radius:12px;margin:0 auto 16px;display:grid;place-items:center;color:#9fb0bf;font-size:13px}
.cbox .k{font-size:14px;color:#a8b6c6}
.cbox .v{font-size:20px;font-weight:800;letter-spacing:1px;margin-top:4px}
footer{background:#0b1220;color:#8496a8;padding:28px 0;font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer a:hover{color:#fff}
@media(max-width:900px){
  .hero .wrap,.tool-band,.contact .wrap{grid-template-columns:1fr}
  h1{font-size:32px}
  .pains,.steps,.cards,.goods,.feat{grid-template-columns:1fr}
  .goods{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .section{padding:44px 0}
  .tool-band{padding:28px}
}
@media print{.nav,.contact,footer,.no-print{display:none}}