:root{--bg:#fbfbf9;--ink:#141414;--ink-2:#57554e;--ink-3:#98958a;--line:#e6e4dc;--line-strong:#d5d2c6;--accent:#5a4bd1;--accent-soft:#efecfc;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;--serif:Georgia,"Times New Roman",serif;--mono:ui-monospace,"Cascadia Mono","JetBrains Mono",Consolas,monospace}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.wrap{max-width:1160px;margin:0 auto;padding:0 32px}.mono{font-family:var(--mono)}.num{font-variant-numeric:tabular-nums}.en{font-family:var(--serif);font-style:italic;letter-spacing:.3px}.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}.reveal.in{opacity:1;transform:none}nav{position:sticky;top:0;z-index:50;background:#fbfbf9e0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav-in{max-width:1160px;margin:0 auto;padding:0 32px;height:58px;display:flex;align-items:center;gap:26px}.logo{display:flex;align-items:center;gap:9px;font-weight:650;font-size:14.5px;letter-spacing:.2px}.logo-mark{width:24px;height:24px;border-radius:7px;background:var(--ink);display:flex;align-items:center;justify-content:center}.nav-links{display:flex;gap:24px;font-size:13px;color:var(--ink-2);margin-left:8px}.nav-links a:hover{color:var(--ink)}.btn{display:inline-flex;align-items:center;gap:7px;border-radius:9px;padding:8px 18px;font-size:13px;cursor:pointer;border:1px solid var(--ink);background:var(--ink);color:#fff;transition:.18s}.btn:hover{background:#2c2c2c}.btn.line{background:transparent;color:var(--ink);border-color:var(--line-strong)}.btn.line:hover{border-color:var(--ink)}nav .btn{margin-left:auto;padding:6px 15px;font-size:12.5px}nav.nav--scrolled{box-shadow:0 8px 24px #1414140f}@media(max-width:960px){.nav-links{display:none}}.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center;padding:96px 0 90px;border-bottom:1px solid var(--line)}.kicker{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);letter-spacing:2.5px;margin-bottom:26px;display:flex;align-items:center;gap:12px}.kicker:before{content:"";width:34px;height:1px;background:var(--ink)}h1{font-size:60px;line-height:1.14;font-weight:640;letter-spacing:.5px}h1 .en{font-weight:400}.hero .lede{font-size:16.5px;color:var(--ink-2);margin:26px 0 34px;max-width:480px}.hero-cta{display:flex;gap:12px;align-items:center}.hero-meta{margin-top:22px;font-size:12px;color:var(--ink-3);font-family:var(--mono)}.window{border:1px solid var(--line-strong);border-radius:14px;background:#fff;box-shadow:0 30px 80px #14141414,0 2px 8px #1414140a;overflow:hidden;position:relative}.win-bar{display:flex;align-items:center;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:#fafaf7}.win-bar i{width:9px;height:9px;border-radius:50%;background:var(--line-strong)}.win-bar .t{margin-left:8px;font-size:11px;color:var(--ink-3);font-family:var(--mono)}.win-body{display:grid;grid-template-columns:150px 1fr;min-height:330px}.win-side{border-right:1px solid var(--line);padding:14px 10px}.side-item{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:7px;font-size:12px;color:var(--ink-2);margin-bottom:2px}.side-item.on{background:var(--accent-soft);color:var(--accent);font-weight:550}.side-item .n{margin-left:auto;font-size:10px;color:var(--ink-3)}.win-main{padding:16px 18px}.clip-row{display:flex;align-items:center;gap:11px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;margin-bottom:9px;font-size:12.5px;position:relative;background:#fff}.clip-row .kind{width:26px;height:26px;border-radius:7px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:11px}.clip-row .time{margin-left:auto;font-size:10.5px;color:var(--ink-3);font-family:var(--mono)}.clip-row.just{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.clip-row.just:after{content:"刚刚 · 来自手机";position:absolute;right:-10px;top:-9px;background:var(--accent);color:#fff;font-size:9.5px;padding:2px 8px;border-radius:9px;letter-spacing:.5px}.ai-chip{position:absolute;bottom:-1px;right:-1px;transform:translateY(100%);background:#fff;border:1px solid var(--line);border-top:none;border-left:none;border-radius:0 0 9px;padding:4px 9px;font-size:10px;color:var(--ink-2)}.ai-chip b{color:var(--accent)}.hotkey{margin-top:14px;display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--ink-3)}kbd{font-family:var(--mono);font-size:10px;border:1px solid var(--line-strong);border-bottom-width:2px;border-radius:5px;padding:2px 6px;background:#fff}@media(max-width:960px){.hero{grid-template-columns:1fr;gap:44px}h1{font-size:42px}}.sec{display:grid;grid-template-columns:220px 1fr;gap:60px;padding:90px 0;border-bottom:1px solid var(--line)}.sec-no{font-family:var(--mono);font-size:12px;color:var(--ink-3);display:flex;gap:12px;align-items:baseline}.sec-no b{font-size:30px;color:var(--ink);font-weight:400;font-family:var(--serif);font-style:italic}h2{font-size:32px;font-weight:620;letter-spacing:.3px;line-height:1.32;margin-bottom:14px}.sec .desc{font-size:14.5px;color:var(--ink-2);max-width:520px;margin-bottom:34px}.frow{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);padding:22px 4px;gap:30px;align-items:baseline;transition:background .15s}.frow:hover{background:#f5f4ef}.frow h3{font-size:16.5px;font-weight:600;display:flex;align-items:center;gap:10px}.frow h3 .idx{font-family:var(--mono);font-size:11px;color:var(--accent);font-weight:400}.frow p{font-size:13px;color:var(--ink-2)}@media(max-width:960px){.sec{grid-template-columns:1fr;gap:26px;padding:60px 0}.frow{grid-template-columns:1fr;gap:8px}}.enc-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;margin-top:8px}.enc-card{border:1px solid var(--line-strong);border-radius:14px;background:#fff;padding:26px;font-size:13px}.enc-card .row{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px dashed var(--line)}.enc-card .row:last-child{border-bottom:none}.enc-card .who{width:70px;font-family:var(--mono);font-size:10.5px;color:var(--ink-3);flex-shrink:0}.enc-card .box{flex:1;border-radius:9px;padding:10px 13px}.enc-card .box.plain{background:#f7f6f2;border:1px solid var(--line);color:var(--ink)}.enc-card .box.cipher{background:var(--accent-soft);border:1px solid #d8d1f8;color:var(--accent);font-family:var(--mono);font-size:10.5px;word-break:break-all}.enc-card .arrow-line{text-align:center;color:var(--ink-3);font-size:11px;padding:2px 0}.check-list{display:flex;flex-direction:column;gap:16px;margin-top:6px}.check-item{display:flex;gap:13px;font-size:14px;color:var(--ink-2);align-items:flex-start}.check-item b{color:var(--ink)}.check-item .no{font-family:var(--mono);font-size:11px;color:var(--accent);border:1px solid #d8d1f8;background:var(--accent-soft);border-radius:6px;padding:1px 7px;margin-top:2px;flex-shrink:0}@media(max-width:960px){.enc-grid{grid-template-columns:1fr}}.ptable{border:1px solid var(--line-strong);border-radius:14px;overflow:hidden;background:#fff;margin-top:10px}.pt-head{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;background:#fafaf7;border-bottom:1px solid var(--line)}.pt-head>div{padding:18px 20px}.pt-head .pn{font-weight:600;font-size:14px}.pt-head .price{font-size:24px;font-weight:640;letter-spacing:.3px}.pt-head .price small{font-size:11.5px;color:var(--ink-3);font-weight:400}.pt-head .tag{display:inline-block;font-size:10px;background:var(--accent-soft);color:var(--accent);border:1px solid #d8d1f8;border-radius:20px;padding:1px 9px;margin-left:8px;vertical-align:3px}.pt-col{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;border-top:1px solid var(--line);font-size:13px}.pt-col>div{padding:12px 20px;color:var(--ink-2)}.pt-col>div:first-child{color:var(--ink)}.pt-col .yes{color:var(--accent)}.pt-col .no{color:var(--line-strong)}.pt-foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;border-top:1px solid var(--line)}.pt-foot>div{padding:16px 20px}.pt-note{font-size:11.5px;color:var(--ink-3);margin-top:14px;font-family:var(--mono)}@media(max-width:960px){.pt-head,.pt-col,.pt-foot{grid-template-columns:1fr}}.dl-row{display:flex;gap:0;border:1px solid var(--line-strong);border-radius:14px;overflow:hidden;margin-top:10px;background:#fff}.dl-cell{flex:1;padding:26px 22px;border-right:1px solid var(--line);cursor:pointer;transition:background .15s;position:relative}.dl-cell:last-child{border-right:none}.dl-cell:hover{background:#fafaf7}.dl-cell .os{margin-bottom:14px;color:var(--ink)}.dl-cell b{display:block;font-size:14.5px;font-weight:600}.dl-cell span{font-size:11.5px;color:var(--ink-3)}.dl-cell .go{position:absolute;top:20px;right:18px;color:var(--ink-3);font-size:14px;transition:.15s}.dl-cell:hover .go{color:var(--accent);transform:translate(3px)}a.dl-cell[aria-disabled=true]{cursor:default}a.dl-cell[aria-disabled=true]:hover{background:#fff}a.dl-cell[aria-disabled=true] .go{opacity:.4}a.dl-cell[aria-disabled=true]:hover .go{color:var(--ink-3);transform:none}@media(max-width:960px){.dl-row{flex-direction:column}.dl-cell{border-right:none;border-bottom:1px solid var(--line)}}.faq{max-width:760px}.faq details{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;list-style:none;padding:19px 2px;font-size:15px;font-weight:550;display:flex;justify-content:space-between;align-items:center}.faq summary::-webkit-details-marker{display:none}.faq summary .pl{font-family:var(--mono);color:var(--accent);font-weight:400}.faq .ans{padding:0 2px 20px;font-size:13.5px;color:var(--ink-2);max-width:640px}.cta{padding:110px 0 90px;text-align:center;border-top:1px solid var(--line)}.cta h2{font-size:42px}.cta p{color:var(--ink-2);margin:16px auto 30px;max-width:460px}footer{border-top:1px solid var(--line);padding:36px 0 48px}.foot-in{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap}.foot-in .fmeta{font-size:12px;color:var(--ink-3);line-height:2}.foot-links{display:flex;gap:40px}.foot-links a{display:block;font-size:12.5px;color:var(--ink-2);padding:3px 0}.foot-links a:hover{color:var(--ink)}.beian-line{margin-top:18px;font-size:12px;color:var(--ink-3);line-height:1.9}.beian{color:var(--ink-3);margin-left:8px}.beian:hover{color:var(--ink)}