:root{--ink:#191918;--muted:#686762;--line:#dfded9;--paper:#fffef9;--blue:#1f67e8;--soft-blue:#eaf1ff;--radius:22px;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper)}a{text-decoration:none;color:inherit}button{font:inherit}.hidden{display:none!important}.nav{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 4vw;border-bottom:1px solid var(--line);background:rgba(255,254,249,.92);position:sticky;top:0;z-index:20;backdrop-filter:blur(15px)}.brand{display:flex;align-items:center;gap:10px;font-size:20px}.brand span{display:grid;place-items:center;width:38px;height:38px;border:2px solid var(--ink);border-radius:10px;font-weight:800;box-shadow:3px 3px 0 var(--ink)}.nav nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:600}.nav nav a:hover{color:var(--blue)}.nav-cta{padding:11px 18px;border-radius:10px;background:var(--ink);color:#fff!important}.menu{display:none;border:0;background:none;font-size:24px}.hero{max-width:1240px;margin:auto;text-align:center;padding:76px 24px 90px}.eyebrow{font-size:12px;letter-spacing:.17em;font-weight:800;color:#77756e}.announcement{display:inline-flex;background:#fff2bd;border:1px solid #e6cd68;border-radius:999px;padding:9px 16px;font-size:13px;margin-bottom:26px}.hero h1,.download-head h1{font-size:clamp(44px,6.3vw,82px);line-height:1.02;letter-spacing:-.055em;max-width:1000px;margin:18px auto 24px}.hero h1 em{font-style:normal;color:var(--blue)}.hero-copy{font-size:20px;line-height:1.7;color:var(--muted);max-width:730px;margin:auto}.hero-actions{display:flex;justify-content:center;gap:12px;margin:34px 0 58px}.button{display:inline-flex;padding:15px 24px;border-radius:11px;font-weight:750;align-items:center;justify-content:center}.primary{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(31,103,232,.2)}.secondary{border:1px solid var(--line);background:#fff}.dark{background:var(--ink);color:#fff}.product-window{border:1px solid #cbc9c1;border-radius:18px;background:#fff;box-shadow:0 28px 80px rgba(30,29,25,.13);overflow:hidden;text-align:left}.window-bar{height:46px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:7px;padding:0 15px;color:#777;font-size:12px}.window-bar i{width:10px;height:10px;border-radius:50%;background:#e87167}.window-bar i:nth-child(2){background:#e7bd54}.window-bar i:nth-child(3){background:#63ba70}.window-bar span{margin-left:12px}.window-body{min-height:490px;display:grid;grid-template-columns:230px 1fr}.window-body aside{background:#f7f6f2;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:28px 18px;gap:8px}.window-body aside b{margin:0 10px 16px}.window-body aside a{padding:10px 12px;border-radius:8px;font-size:13px}.window-body aside .active{background:#e4e3de}.window-body article{padding:70px 8vw}.window-body article small{color:#777}.window-body article h2{font-size:39px;letter-spacing:-.04em;margin:24px 0 12px}.window-body article p{color:var(--muted)}.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:50px}.note-grid div{border:1px solid var(--line);border-radius:12px;padding:22px}.note-grid span{display:block;color:#777;font-size:12px;margin-top:8px}.features{max-width:1160px;margin:auto;padding:90px 24px 120px}.features>h2{font-size:48px;letter-spacing:-.045em;margin:12px 0 44px}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.feature-grid article{min-height:280px;padding:34px;border-radius:var(--radius);border:1px solid rgba(0,0,0,.1);position:relative;overflow:hidden}.feature-grid article span{font-size:12px;font-weight:800}.feature-grid h3{font-size:31px;margin:60px 0 10px}.feature-grid p{max-width:480px;line-height:1.65}.blue{background:#dce9ff}.yellow{background:#ffe79e}.coral{background:#ffc7b8}.green{background:#ccebcf}.mini-doc{position:absolute;right:40px;bottom:35px;width:180px;padding:20px;background:white;border-radius:12px;box-shadow:0 12px 35px #84a7db55}.mini-doc i{display:block;height:7px;background:#dfe4ed;margin:8px;border-radius:3px}.devices{display:flex;gap:9px;margin-top:36px;flex-wrap:wrap}.devices b{background:#fff9;padding:12px 16px;border-radius:9px;font-size:13px}.download-cta{max-width:1160px;margin:0 auto 100px;padding:55px;border-radius:28px;background:#e8e5dd;display:flex;align-items:center;justify-content:space-between;gap:30px}.download-cta h2{font-size:42px;letter-spacing:-.04em;margin:10px 0}.download-cta p{color:var(--muted)}footer{border-top:1px solid var(--line);padding:32px 4vw;display:flex;align-items:center;justify-content:space-between;gap:24px;font-size:13px;color:var(--muted)}footer div{display:flex;gap:20px}
.download-main{max-width:1120px;margin:auto;padding:80px 24px 100px}.download-head{text-align:center}.download-head h1{font-size:64px}.download-head>p{color:var(--muted);font-size:18px}.version-chip{display:inline-flex;margin-top:18px;padding:8px 13px;background:var(--soft-blue);color:var(--blue);border-radius:999px;font-size:13px;font-weight:700}.platform-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:60px 0}.platform-card{border:1px solid var(--line);border-radius:20px;background:#fff;padding:28px;display:flex;align-items:center;gap:20px;text-align:left;cursor:pointer;transition:.2s;min-height:130px}.platform-card:hover{transform:translateY(-3px);box-shadow:0 14px 40px #1f1f1a16}.platform-icon{width:58px;height:58px;border-radius:15px;background:#edf3ff;color:var(--blue);display:grid;place-items:center;font-size:29px}.platform-card b{display:block;font-size:22px}.platform-card small{display:block;color:var(--muted);margin-top:8px}.platform-card i{margin-left:auto;font-style:normal;color:var(--blue);font-weight:750}.download-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;border-top:1px solid var(--line);padding-top:40px}.download-notes article{padding:10px 24px}.download-notes p{color:var(--muted);font-size:13px;line-height:1.65}dialog{border:2px solid var(--blue);border-radius:22px;padding:46px;max-width:520px;width:calc(100% - 32px);box-shadow:0 30px 90px #152b4e55}dialog::backdrop{background:#14213d5c;backdrop-filter:blur(6px)}dialog h2{text-align:center;color:#135ccb;font-size:30px;margin:5px 0 8px}dialog>p{text-align:center;color:var(--muted)}.dialog-close{position:absolute;right:18px;top:18px;border:0;background:#eaf2ff;color:var(--blue);font-size:23px;width:40px;height:40px;border-radius:50%;cursor:pointer}.dialog-options{display:grid;gap:12px;margin-top:28px}.download-option{display:flex;align-items:center;gap:18px;background:linear-gradient(135deg,#2180ff,#0759d6);color:#fff;border-radius:13px;padding:18px 22px}.download-option>span{font-size:34px}.download-option b{font-size:17px}.download-option small{display:block;font-size:12px;font-weight:400;margin-top:6px;color:#dceaff}.coming-soon{text-align:center;background:#f2f3f5;padding:25px;border-radius:12px;color:var(--muted)}
@media(max-width:760px){.nav{height:64px}.menu{display:block}.nav nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;padding:20px;flex-direction:column;border-bottom:1px solid var(--line)}.nav nav.open{display:flex}.hero{padding-top:55px}.hero h1,.download-head h1{font-size:43px}.hero-copy{font-size:16px}.hero-actions{flex-direction:column}.window-body{grid-template-columns:1fr;min-height:450px}.window-body aside{display:none}.window-body article{padding:45px 25px}.window-body article h2{font-size:30px}.note-grid{grid-template-columns:1fr}.features>h2{font-size:36px}.feature-grid,.platform-grid,.download-notes{grid-template-columns:1fr}.feature-grid article{min-height:230px}.mini-doc{display:none}.download-cta{padding:35px;align-items:flex-start;flex-direction:column}.download-cta h2{font-size:34px}footer{flex-direction:column;align-items:flex-start}dialog{padding:42px 20px 24px}}