:root{color-scheme:light;--ink:#24342f;--green:#2f8f6b;--muted:#6f7f78;--paper:#fffefa;--wash:#f3f7f2;--line:rgba(47,92,73,.13)}*{box-sizing:border-box}body{margin:0;background:var(--wash);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6}.hero{padding:28px max(24px,calc((100vw - 1120px)/2)) 76px;background:linear-gradient(145deg,#fffefa 0%,#e7f4ec 100%)}nav{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:14px}.brand{color:var(--ink);font-size:20px;font-weight:850;text-decoration:none}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:72px;align-items:center;padding-top:80px}.eyebrow{margin:0 0 12px;color:var(--green);font-size:14px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}h1,h2{margin:0;letter-spacing:-.035em}h1{font-size:clamp(44px,7vw,76px);line-height:1.12}h1 em{color:var(--green);font-style:normal}h2{font-size:clamp(30px,4vw,48px);line-height:1.2}.lead{max-width:720px;margin:28px 0 0;color:#52635c;font-size:20px}.use-card{display:flex;min-height:280px;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:28px;border:1px solid var(--line);border-radius:28px;background:rgba(255,255,255,.82);box-shadow:0 24px 70px rgba(47,92,73,.12);text-align:center}.mini-code{width:168px;height:168px;object-fit:contain}.wechat-search{font-size:22px;font-weight:850}.use-card small{color:var(--muted)}main,footer{max-width:1120px;margin:auto}section{padding:92px 24px}.source-grid,.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:36px}.source-grid div,.shot{padding:30px 22px;border:1px solid var(--line);border-radius:22px;background:var(--paper);font-size:20px;font-weight:800}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;list-style:none;counter-reset:flow;margin:38px 0 0;padding:0}.steps li{padding:24px 18px;border-radius:18px;background:#e7f3ec;font-weight:800}.steps li:before{display:block;counter-increment:flow;content:"0" counter(flow);margin-bottom:14px;color:var(--green);font-size:13px}.privacy{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start;padding-right:48px;padding-left:48px;border-radius:34px;background:var(--ink);color:white}.privacy ul{display:grid;gap:14px;margin:0;padding-left:22px;color:#dbe7e1}.shots{grid-template-columns:repeat(3,1fr)}.shot{min-height:300px;margin:0}.shot img{display:block;width:100%;border-radius:14px}.shot figcaption{margin-top:14px}.shot-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.shot-placeholder span{margin-top:10px;color:var(--muted);font-size:14px;font-weight:500}.asset-note{color:var(--muted);font-size:13px}footer{display:flex;justify-content:space-between;gap:24px;padding:38px 24px 56px;border-top:1px solid var(--line);color:var(--muted)}footer strong{color:var(--ink)}@media(max-width:760px){.hero{padding-bottom:48px}.hero-grid{grid-template-columns:1fr;gap:36px;padding-top:52px}.use-card{min-height:180px}.source-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:1fr}.privacy{grid-template-columns:1fr;gap:28px;margin:0 16px;padding:40px 28px}.shots{grid-template-columns:1fr}.shot{min-height:210px}section{padding:64px 20px}footer{flex-direction:column}}