:root{--bg:#f5f8f6;--ink:#10241f;--green:#08785b;--green2:#16a47b;--mint:#dff5ec;--dark:#071512;--muted:#5c716a;--line:#d9e5e0;--gold:#f3c96b;--shadow:0 20px 60px rgba(5,44,34,.1);font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;line-height:1.65;font-size:16px}a{color:inherit}.skip{position:fixed;left:12px;top:-80px;background:#fff;padding:10px;z-index:30}.skip:focus{top:12px}.site-header{height:72px;padding:0 max(24px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(7,21,18,.94);color:#fff;position:sticky;top:0;z-index:20;backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.08)}.brand{display:grid;grid-template-columns:42px auto;grid-template-rows:23px 17px;column-gap:10px;align-items:center;text-decoration:none}.brand img{width:42px;height:42px;grid-row:1/3;border-radius:10px}.brand span{font-weight:850;font-size:18px;line-height:1}.brand small{color:#9eb9b0;font-size:12px}.site-header nav{display:flex;align-items:center;gap:24px}.site-header nav a{text-decoration:none;font-size:14px;font-weight:700;color:#cfe0da}.nav-download{padding:9px 15px;border-radius:9px;background:var(--green2);color:#fff!important}.hero{min-height:720px;padding:82px max(24px,calc((100vw - 1180px)/2));display:grid;grid-template-columns:1.08fr .92fr;gap:72px;align-items:center;background:radial-gradient(circle at 80% 18%,rgba(22,164,123,.22),transparent 26%),linear-gradient(145deg,#071512 0%,#0b2d25 62%,#0c3a2e 100%);color:#fff;overflow:hidden}.eyebrow{margin:0 0 13px;color:var(--green2);font-size:13px;font-weight:850;letter-spacing:.12em;text-transform:uppercase}.hero .eyebrow,.dark-section .eyebrow,.download .eyebrow{color:#78ddb9}.hero h1{font-size:clamp(44px,5.5vw,72px);line-height:1.1;letter-spacing:-.05em;margin:0 0 24px}.hero h1 em{font-style:normal;color:#75e0b7}.lead{font-size:20px;color:#bfd2cb;max-width:680px;margin:0 0 30px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:10px;text-decoration:none;font-weight:800;border:1px solid transparent;transition:.2s transform}.button:hover{transform:translateY(-2px)}.primary{background:var(--green2);color:#fff;box-shadow:0 12px 32px rgba(22,164,123,.25)}.secondary{background:#fff;color:var(--ink);border-color:var(--line)}.hero .secondary{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.2)}.trust-row,.desktop-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:26px}.trust-row span,.desktop-tags span{font-size:12px;font-weight:750;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:6px 10px;background:rgba(255,255,255,.06);color:#cfe0da}.phone{width:min(100%,410px);justify-self:end;background:#091b17;border:1px solid #2b6554;border-radius:30px;padding:14px;box-shadow:0 35px 90px rgba(0,0,0,.38);transform:rotate(1deg)}.phone-top,.contact,.composer{display:flex;align-items:center}.phone-top{justify-content:space-between;padding:9px 10px 13px;font-weight:850}.phone-top i{width:9px;height:9px;border-radius:50%;background:#65dbb2}.contact{gap:11px;padding:12px;background:#102923;border-radius:16px}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#0e785c;font-weight:900}.contact div:nth-child(2){flex:1}.contact b,.contact small{display:block}.contact small{color:#8fb7aa;font-size:12px}.messages{min-height:410px;padding:18px 4px;display:flex;flex-direction:column;gap:11px}.bubble{max-width:83%;padding:12px 14px;border-radius:15px;background:#132b25}.bubble b,.bubble span{display:block}.bubble span{border-top:1px solid #315247;margin-top:8px;padding-top:7px;color:#b8cec7}.bubble time{display:block;text-align:right;font-size:11px;color:#92aaa2}.bubble.outgoing{align-self:flex-end;background:#075a45}.ai-card{border-radius:15px;padding:14px;background:#203a33;border:1px solid #355c50}.ai-card small{font-weight:800;color:#9ce8ca}.ai-card p{margin:7px 0 12px}.ai-card div{display:flex;justify-content:flex-end;gap:8px}.ai-card div>*{font-size:12px;padding:6px 9px;border-radius:8px;background:#294b41}.composer{gap:12px;padding:11px 13px;border-radius:18px;background:#102923}.composer p{flex:1;margin:0;color:#9bb1aa}.composer b{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#8ce2c4;color:#063c2f}.proof{max-width:1180px;margin:-30px auto 0;position:relative;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.proof div{padding:25px 28px;border-right:1px solid var(--line)}.proof div:last-child{border:0}.proof strong,.proof span{display:block}.proof strong{font-size:25px;color:var(--green)}.proof span{font-size:13px;color:var(--muted)}.section{max-width:1180px;margin:auto;padding:105px 0}.section-heading{max-width:780px;margin-bottom:46px}.section-heading h2,.download h2{font-size:clamp(32px,4vw,50px);line-height:1.15;letter-spacing:-.035em;margin:0 0 17px}.section-heading>p:last-child{font-size:18px;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature{padding:27px;background:#fff;border:1px solid var(--line);border-radius:17px;min-height:270px}.feature.featured{background:var(--dark);color:#fff}.feature.featured p{color:#bad0c8}.feature.featured b{color:var(--gold)}.icon{display:grid;place-items:center;width:43px;height:43px;border-radius:11px;background:var(--mint);color:var(--green);font-weight:900}.featured .icon{background:var(--gold);color:#453100}.feature h3{font-size:21px;margin:23px 0 9px}.feature p{margin:0;color:var(--muted)}.dark-section{padding:95px max(24px,calc((100vw - 1180px)/2));background:var(--dark);color:#fff}.workflow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border:1px solid #245044;border-radius:16px;overflow:hidden;background:#245044}.workflow li{min-height:220px;padding:28px;background:#102d26}.workflow li>span{color:var(--gold);font-weight:900;font-size:13px}.workflow h3{margin:42px 0 8px}.workflow p{margin:0;color:#aec8bf;font-size:14px}.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.guide-grid article{display:flex;gap:18px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:15px}.guide-grid article>span{flex:0 0 40px;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:900}.guide-grid h3{margin:2px 0 7px}.guide-grid p{margin:0;color:var(--muted)}.notice{margin-top:18px;padding:22px 25px;border-left:4px solid var(--gold);background:#fff8e8;border-radius:0 13px 13px 0}.notice p{margin:5px 0 0;color:#68562e}.account-section{display:grid;grid-template-columns:1.25fr .75fr;gap:70px;align-items:center;padding-top:30px}.account-copy h2,.desktop-section h2,.wechat-section h2{font-size:clamp(30px,3.7vw,46px);line-height:1.15;margin:0 0 17px}.account-copy>p:last-of-type,.desktop-section p,.wechat-section p{color:var(--muted);font-size:17px}.account-copy ul{list-style:none;padding:0;margin:25px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}.account-copy li{padding-left:24px;position:relative}.account-copy li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:900}.security-card{padding:28px;border-radius:20px;background:#0d241e;color:#fff;box-shadow:var(--shadow)}.security-card>span{color:#76d9b6;font-size:12px;font-weight:900}.security-card h3{font-size:27px;margin:4px 0 20px}.security-card div{padding:14px 0;border-top:1px solid #2d4b42}.security-card b,.security-card small{display:block}.security-card small{color:#99b5ac}.security-card button{width:100%;height:44px;border:0;border-radius:9px;background:#24473d;color:#a9c5bc;font-weight:800}.desktop-section{display:grid;grid-template-columns:1fr auto;gap:60px;align-items:center;padding-top:45px}.desktop-tags span{color:var(--green);border-color:var(--line);background:#fff}.button.large{min-width:230px}.download{padding:75px max(24px,calc((100vw - 1180px)/2));display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center;background:linear-gradient(130deg,#0a3d31,#071d18);color:#fff}.download>div>p:last-child{color:#b9d0c8}.download-options{display:grid;gap:13px}.download-box{display:grid;grid-template-columns:62px 1fr auto;gap:15px;align-items:center;padding:20px;border:1px solid #2f6455;border-radius:15px;background:rgba(255,255,255,.055)}.primary-download{background:rgba(22,164,123,.13)}.download-box img{width:62px;border-radius:12px}.download-box b,.download-box span{display:block}.download-box span{font-size:12px;color:#b7d0c7}.gold{background:var(--gold);color:#3d2b06}.pale{background:#e7f4ef;color:#12392f}.faq{padding-bottom:65px}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0 22px;margin:10px 0}.faq summary{padding:19px 0;cursor:pointer;font-weight:800;font-size:17px}.faq p{margin:0 0 20px;color:var(--muted)}.wechat-section{display:grid;grid-template-columns:1fr auto;gap:70px;align-items:center;padding-top:35px}.wechat-card{margin:0;padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow);text-align:center}.wechat-card img{display:block;width:230px;height:230px;object-fit:contain}.wechat-card figcaption{margin-top:10px;color:var(--green);font-weight:800}.site-footer{padding:35px max(24px,calc((100vw - 1180px)/2));display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:28px;background:#071512;color:#91aba2;font-size:13px}.site-footer p{margin:0}
@media(max-width:920px){.site-header nav a:not(.nav-download){display:none}.hero{grid-template-columns:1fr;padding-top:58px}.phone{justify-self:center}.proof{margin:20px 20px 0;grid-template-columns:1fr 1fr}.proof div:nth-child(2){border-right:0}.section{padding:80px 24px}.feature-grid{grid-template-columns:1fr 1fr}.workflow{grid-template-columns:1fr 1fr}.account-section,.desktop-section,.download,.wechat-section{grid-template-columns:1fr;gap:30px}.download{padding:70px 24px}.wechat-card{justify-self:start}}
@media(max-width:600px){.site-header{height:66px}.brand small{display:none}.brand{grid-template-rows:42px}.brand img{grid-row:1}.nav-download{font-size:12px!important;padding:8px 10px}.hero{padding-top:42px;gap:40px}.hero h1{font-size:40px}.lead{font-size:17px}.hero-actions .button{width:100%}.phone{padding:10px;border-radius:24px;transform:none}.messages{min-height:360px}.proof{grid-template-columns:1fr}.proof div{border-right:0!important;border-bottom:1px solid var(--line)}.feature-grid,.workflow,.guide-grid{grid-template-columns:1fr}.feature{min-height:auto}.account-copy ul{grid-template-columns:1fr}.download-box{grid-template-columns:52px 1fr}.download-box img{width:52px}.download-box .button{grid-column:1/3}.section-heading h2,.download h2{font-size:34px}.wechat-card{justify-self:stretch}.wechat-card img{width:min(100%,230px);height:auto;margin:auto}.site-footer{grid-template-columns:1fr;gap:10px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}.button{transition:none}}
.platform-mark{width:62px;height:62px;border-radius:12px;display:grid!important;place-items:center;background:linear-gradient(145deg,#f5f7f6,#cfd9d5);color:#12392f!important;font-size:17px!important;font-weight:900;letter-spacing:-.03em}.ios-download{border-color:#54776d}
.plans-section{padding-top:45px}.plan-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.plan-grid article{padding:24px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.plan-grid article.recommended{background:#0d2f27;color:#fff;border-color:#1d6d57}.plan-grid span{display:inline-block;padding:4px 8px;border-radius:999px;background:var(--mint);color:var(--green);font-size:11px;font-weight:850}.plan-grid h3{font-size:18px;margin:18px 0 4px}.plan-grid strong{display:block;font-size:28px;color:var(--green);margin-bottom:12px}.plan-grid .recommended strong{color:#80e3bf}.plan-grid p{margin:0;color:var(--muted);font-size:14px}.plan-grid .recommended p{color:#b8d0c8}.plan-note{margin:16px 0 0;color:var(--muted);font-size:14px}
@media(max-width:1100px){.plan-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.plan-grid{grid-template-columns:1fr}}
@media(max-width:600px){.platform-mark{width:52px;height:52px}}