:root{font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:#183b30;background:#f5f8f6;font-synthesis:none;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(ellipse at 8% 42%,#e5f1e9,transparent 52%),radial-gradient(ellipse at 100% 85%,#eaf0df,transparent 40%)}a{color:inherit;text-decoration:none}.site-shell{max-width:1240px;margin:auto;padding:30px 48px 22px}header{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px}.brand>span{font-size:21px;font-weight:750;letter-spacing:1px}.brand small{display:block;font-size:10px;letter-spacing:2px;color:#708178;font-weight:400;margin-top:4px}.header-tag{font-size:12px;color:#65786d;display:flex;align-items:center;gap:8px}.header-tag i{height:7px;width:7px;background:#26835e;border-radius:50%}.layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(340px,.88fr);gap:90px;align-items:center;padding:66px 0 54px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:700;color:#517c66;margin:0 0 21px}h1{font-size:clamp(38px,4.4vw,58px);line-height:1.23;letter-spacing:-2px;margin:0;font-weight:750}h1 span{color:#258360}.intro{font-size:15px;line-height:1.9;color:#65776d;margin:22px 0}.feature-tags{display:flex;gap:10px;margin-bottom:27px}.feature-tags span{font-size:11px;color:#51725e;border:1px solid #cbded0;padding:6px 12px;border-radius:20px}.conversation{max-width:470px;background:#fff;border:1px solid #e0e9e2;border-radius:19px;box-shadow:0 16px 50px #20442b0b;overflow:hidden;transform:rotate(-1deg)}.conversation-head{display:flex;gap:10px;align-items:center;padding:16px 20px;border-bottom:1px solid #edf2ed}.avatar{width:35px;height:35px;border-radius:11px;display:grid;place-items:center;background:#f2e6d8;color:#916b47;font-size:14px;flex-shrink:0}.conversation-head strong{font-size:12px;display:block}.conversation-head small{font-size:9px;color:#89958e;display:block;margin-top:4px}.chat-dots{margin-left:auto;letter-spacing:2px;color:#8a9d90}.messages{padding:6px 18px 19px;background:#fcfdfb}.chat-time{text-align:center;font-size:9px;color:#95a096;margin:10px 0 16px}.message{display:flex;align-items:start;gap:9px;margin:12px 0}.small{width:27px;height:27px;border-radius:9px;font-size:11px}.message p{font-size:11px;line-height:1.7;padding:9px 12px;border-radius:0 11px 11px;background:#eef2ec;margin:0;max-width:85%}.own{justify-content:flex-end}.own p{background:#dcefdc;border-radius:11px 0 11px 11px}.mine{background:#dfe9df;color:#47795e}.mock-input{display:flex;align-items:center;justify-content:space-between;margin:0 15px 13px;border:1px solid #e6ece5;border-radius:9px;padding:7px 9px;color:#95a095;font-size:10px}.mock-input b{background:#217b59;color:#fff;border-radius:7px;padding:4px 9px;font-size:14px}.hero-foot{font-size:11px;color:#78907d;margin-top:24px;display:flex;align-items:center;gap:8px}.mini-mark{color:#3c875f;font-size:18px}.action-card{background:#ffffffeb;border:1px solid #e0e8df;border-radius:26px;padding:35px 34px 0;box-shadow:0 24px 65px #274b3510}.card-icon{width:48px;height:48px;display:grid;place-items:center;background:#edf5ec;color:#257950;border-radius:14px;font-size:29px;margin-bottom:30px}.action-card .eyebrow{font-size:9px;margin-bottom:14px}h2{font-size:31px;line-height:1.4;letter-spacing:-1px;margin:0}.card-description{font-size:12px;color:#7c8b80;line-height:1.9;margin:15px 0 29px}.gate-form{display:grid;gap:12px}.code-label{font-size:12px;font-weight:600;color:#496451}.code-input{width:100%;height:56px;border:1px solid #dce5da;border-radius:10px;background:#f8faf7;padding:0 16px;color:#244b33;font:inherit;font-size:21px;letter-spacing:8px}.code-input::placeholder{font-size:13px;letter-spacing:1px;color:#929f91}.submit-button{min-height:53px;border:0;border-radius:10px;background:#207b56;color:white;font:inherit;font-size:13px;font-weight:600;cursor:pointer;margin-top:6px}.submit-button:hover,.download-button:hover{background:#165f42}.submit-button:active{transform:translateY(1px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #73ac82;outline-offset:4px}.gate-note{font-size:10px;line-height:1.8;color:#869482;margin:16px 0 27px}.error-message{color:#ad3434;font-size:12px;line-height:1.7;margin:0}.card-bottom{border-top:1px solid #e9eee6;padding:19px 0;display:flex;align-items:center;gap:12px;color:#71816c;font-size:10px}.available{margin-left:auto;color:#96a18f}.dot{color:#b8c2b4}footer{border-top:1px solid #dfe7de;padding-top:20px;display:flex;justify-content:space-between;color:#87947f;font-size:10px}.download-actions{display:grid;gap:12px}.download-button{display:flex;align-items:center;gap:15px;background:#207b56;color:white;border-radius:12px;padding:17px 18px}.download-button>span:last-child{margin-left:auto}.download-button strong{font-size:14px;display:block}.download-button small{font-size:10px;display:block;margin-top:5px;opacity:.7}.platform-symbol{font-size:25px}.ios{background:#edf3ea;color:#254631}.ios:hover{background:#dfeadc}.download-note{font-size:11px;line-height:1.9;color:#869482;margin:22px 0 27px}@media(min-width:1400px){.layout{padding-top:85px;padding-bottom:75px}}@media(max-width:900px){.site-shell{padding:25px 28px}.layout{gap:35px;grid-template-columns:1fr 1fr}.action-card{padding:27px 24px 0}h2{font-size:27px}.conversation{transform:none}}@media(max-width:680px){.site-shell{padding:23px 22px}.header-tag{font-size:10px}.brand>span{font-size:18px}.brand img{width:37px;height:37px}.layout{grid-template-columns:1fr;gap:30px;padding:42px 0 32px}.hero{text-align:center}h1{font-size:42px}.eyebrow{font-size:8px;margin-bottom:17px}.intro{font-size:13px;margin:16px 0}.feature-tags{justify-content:center;margin-bottom:22px}.conversation{display:none}.hero-foot{display:none}.action-card{width:100%;max-width:430px;margin:auto;padding:26px 26px 0;border-radius:22px}.card-icon{display:none}h2{font-size:25px;letter-spacing:-.5px}.card-description{margin:12px 0 22px}.card-bottom{padding:17px 0}footer{font-size:9px;gap:10px}.gate-note{margin-bottom:22px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}