:root{--ink: #17211f;--muted: #65706e;--paper: #f7f9f5;--surface: #ffffff;--line: #dfe6de;--teal: #0b6f6b;--teal-dark: #064b4a;--mint: #d5f1e6;--leaf: #7bb342;--amber: #f0b94d;--blue: #2d6cdf;--shadow: 0 20px 70px rgba(23, 33, 31, .12);font-family:Inter,PingFang SC,Microsoft YaHei,Noto Sans SC,system-ui,sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:linear-gradient(135deg,rgba(213,241,230,.72),transparent 38%),linear-gradient(20deg,rgba(240,185,77,.14),transparent 42%),var(--paper)}button,input{font:inherit}button{cursor:pointer}.site-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;padding:12px clamp(18px,5vw,72px);border-bottom:1px solid rgba(223,230,222,.86);background:#f7f9f5eb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand{display:inline-flex;align-items:center;gap:12px;min-width:210px;padding:0;color:var(--ink);border:0;background:transparent;text-align:left}.brand-mark{display:grid;width:44px;height:44px;place-items:center;border-radius:8px;color:#fff;background:var(--teal);font-weight:800}.brand strong,.brand small{display:block}.brand small{margin-top:2px;color:var(--muted);font-size:12px}.nav{display:flex;align-items:center;gap:4px}.nav button,.nav-toggle{border:0;background:transparent;color:var(--muted)}.nav button{padding:10px 14px;border-radius:6px}.nav button:hover,.nav button:focus-visible{color:var(--teal-dark);background:#0b6f6b14;outline:none}.nav-toggle{display:none;width:42px;height:42px;place-items:center}.hero-section{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(340px,.76fr);gap:clamp(28px,5vw,64px);align-items:center;min-height:calc(100vh - 76px);padding:clamp(44px,7vw,96px) clamp(18px,5vw,72px)}.eyebrow,.section-heading span,.payment-copy>span,.contact-section span{display:inline-flex;align-items:center;gap:8px;color:var(--teal-dark);font-size:13px;font-weight:800;text-transform:uppercase}.hero-copy h1{max-width:860px;margin:18px 0 22px;font-size:clamp(46px,8vw,94px);line-height:.94;letter-spacing:0}.hero-copy p,.section-heading p,.payment-copy p,.contact-section p,.feature-card p,.product-card p,.workflow-list p{color:var(--muted);line-height:1.75}.hero-copy p{max-width:760px;font-size:18px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.primary-btn,.ghost-btn,.plan-card button,.pay-button,.phone-pay{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 18px;border-radius:7px;font-weight:800}.primary-btn,.pay-button,.phone-pay{border:1px solid var(--teal);color:#fff;background:var(--teal)}.ghost-btn{border:1px solid var(--line);color:var(--teal-dark);background:#ffffffc7}.hero-lab{border:1px solid rgba(11,111,107,.16);border-radius:8px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}.lab-header,.lab-order{display:flex;justify-content:space-between;gap:16px;padding:22px;color:#fff;background:var(--teal-dark)}.lab-header span,.lab-order span,.lab-order small{display:block;color:#ffffffb8;font-size:12px}.lab-header strong,.lab-order strong{display:block;margin-top:4px;font-size:20px}.lab-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line)}.lab-grid article{min-height:138px;padding:20px;background:#fff}.lab-grid svg{color:var(--teal)}.lab-grid span,.lab-grid strong{display:block}.lab-grid span{margin:18px 0 5px;color:var(--muted);font-size:12px}.lab-grid strong{font-size:17px}.lab-order{display:block;background:#123936}.platform-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.platform-strip span{min-height:76px;display:grid;place-items:center;padding:12px;border-right:1px solid var(--line);color:var(--teal-dark);font-weight:800}.section{padding:clamp(64px,8vw,110px) clamp(18px,5vw,72px)}.section-heading{max-width:760px;margin-bottom:34px}.section-heading.compact{max-width:860px}.section-heading h2,.payment-copy h2,.contact-section h2{margin:10px 0 12px;font-size:clamp(31px,5vw,58px);line-height:1.06;letter-spacing:0}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.product-card,.feature-card,.plan-card,.checkout-card,.contact-panel,.phone-frame{border:1px solid var(--line);border-radius:8px;background:var(--surface);box-shadow:0 12px 34px #17211f12}.product-card{overflow:hidden}.product-card img{width:100%;aspect-ratio:4 / 3;object-fit:cover;object-position:top center;background:#eef3ef}.product-card-body{padding:20px}.product-meta{display:flex;align-items:center;gap:8px;min-height:28px;color:var(--teal);font-size:12px;font-weight:800}.product-card h3,.feature-card h3,.workflow-list h3,.plan-card h3{margin:12px 0 8px;font-size:22px;line-height:1.2}.product-card ul,.plan-card ul{padding:0;margin:18px 0 0;list-style:none}.product-card li,.plan-card li{display:flex;gap:8px;align-items:flex-start;margin-top:10px;color:var(--ink);line-height:1.45}.product-card li svg,.plan-card li svg{flex:0 0 auto;margin-top:3px;color:var(--leaf)}.miniapp-section{background:#edf5f0}.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature-card{padding:24px}.feature-card svg{color:var(--teal)}.workflow{display:grid;grid-template-columns:minmax(280px,390px) minmax(0,1fr);gap:clamp(22px,5vw,72px);align-items:center;margin-top:48px}.phone-frame{position:relative;max-width:390px;padding:18px;background:#182623;color:#fff}.phone-status,.phone-title,.phone-package,.phone-note{border-radius:8px;background:#ffffff14}.phone-status{display:flex;justify-content:space-between;padding:14px}.phone-title,.phone-package,.phone-note{margin-top:12px;padding:16px}.phone-title small,.phone-package span,.phone-package small,.phone-note{display:block;color:#ffffffa8}.phone-title strong{display:block;margin-top:6px;font-size:26px}.phone-package strong{display:block;margin:8px 0;color:var(--amber);font-size:42px}.phone-pay{width:100%;margin-top:12px;color:#11211f;background:var(--mint);border-color:var(--mint)}.phone-note{font-size:13px;line-height:1.6}.workflow-list{display:grid;gap:14px}.workflow-list article{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:22px 0;border-bottom:1px solid rgba(11,111,107,.16)}.workflow-list article>span{display:grid;width:46px;height:46px;place-items:center;border-radius:50%;color:var(--teal-dark);background:var(--mint);font-weight:900}.workflow-list h3,.workflow-list p{margin:0}.workflow-list p{margin-top:7px}.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.plan-card{display:flex;flex-direction:column;min-height:100%;padding:24px}.plan-card.active{border-color:var(--teal);box-shadow:0 22px 60px #0b6f6b29}.plan-top span{display:inline-flex;padding:5px 9px;border-radius:999px;color:var(--teal-dark);background:var(--mint);font-size:12px;font-weight:900}.plan-top p{color:var(--muted);line-height:1.65}.price{margin:20px 0 4px;color:var(--teal-dark);font-size:48px;font-weight:900}.price small,.price span{font-size:18px}.plan-card button{width:100%;margin-top:auto;border:1px solid var(--teal);color:var(--teal-dark);background:#fff}.plan-card.active button{color:#fff;background:var(--teal)}.payment-section{display:grid;grid-template-columns:minmax(0,.9fr) minmax(340px,.66fr);gap:clamp(24px,6vw,86px);align-items:start;background:#fff}.method-list{display:grid;gap:12px;max-width:520px;margin-top:28px}.method-list button{display:flex;align-items:center;gap:12px;padding:16px;border:1px solid var(--line);border-radius:8px;background:#fff;text-align:left}.method-list button.active{border-color:var(--teal);background:#d5f1e685}.method-list strong,.method-list small{display:block}.method-list small{margin-top:3px;color:var(--muted)}.checkout-card{position:sticky;top:104px;padding:24px}.checkout-title{display:flex;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}.checkout-title span,.checkout-title strong{display:block}.checkout-title span{color:var(--muted);font-size:13px}.checkout-title strong{margin-top:5px;font-size:24px}.checkout-card dl{margin:18px 0}.checkout-card dl>div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid #eef2ee}.checkout-card dt{color:var(--muted)}.checkout-card dd{margin:0;text-align:right;font-weight:800}.checkout-total{display:flex;align-items:end;justify-content:space-between;margin:24px 0 16px}.checkout-total strong{color:var(--teal-dark);font-size:42px}.pay-button{width:100%}.checkout-card p{color:var(--muted);font-size:13px;line-height:1.6}.contact-section{display:grid;grid-template-columns:minmax(0,.8fr) minmax(320px,.72fr);gap:34px}.contact-panel{padding:24px}.contact-panel p{margin:0}.contact-panel p+p{margin-top:14px}.site-footer{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;padding:22px clamp(18px,5vw,72px);border-top:1px solid var(--line);color:var(--muted);background:#fff;font-size:14px}@media(max-width:1180px){.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:920px){.nav-toggle{display:grid}.nav{position:absolute;top:76px;right:18px;left:18px;display:none;flex-direction:column;align-items:stretch;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow)}.nav.nav-open{display:flex}.hero-section,.payment-section,.contact-section,.workflow{grid-template-columns:1fr}.hero-section{min-height:auto}.checkout-card{position:static}.feature-row,.plan-grid{grid-template-columns:1fr}}@media(max-width:640px){.topbar{min-height:70px}.brand{min-width:0}.brand small{display:none}.nav{top:70px}.hero-section,.section{padding-left:16px;padding-right:16px}.hero-copy h1{font-size:43px}.lab-grid,.product-grid,.platform-strip{grid-template-columns:1fr}.platform-strip span{min-height:58px;border-right:0;border-bottom:1px solid var(--line)}.checkout-card dl>div{display:grid;gap:4px}.checkout-card dd{text-align:left}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}