:root{color-scheme:light;--ink:#223249;--muted:#7b8797;--blue:#427deb;--border:#e7ebf1;--paper:#fff;--background:#f5f7fa;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--ink)}.shell{min-height:100svh;width:min(100% - 80px,1120px);margin:auto;display:flex;flex-direction:column}.masthead{height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px}.wordmark{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:650;letter-spacing:1px}.brand-mark{width:22px;height:18px;background:var(--blue);border-radius:4px;position:relative}.brand-mark:before{content:"";position:absolute;top:-4px;left:0;width:11px;height:7px;border-radius:3px;background:var(--blue)}.wordmark-en{font-size:10px;letter-spacing:2px;margin-left:5px;color:#8e99a8;font-weight:500}.header-note{font-size:10px;letter-spacing:2px;color:#8994a4}main{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;padding:30px 0 48px}.space-card{width:100%;max-width:624px;background:var(--paper);border:1px solid var(--border);border-radius:22px;box-shadow:0 18px 65px -37px #6b7e9d45;overflow:hidden}.card-top{display:flex;align-items:center;justify-content:space-between;padding:30px 34px}.eyebrow{font-size:10px;letter-spacing:2.2px;color:#a0a9b5;font-weight:600}.private-badge{font-size:11px;color:#6c7d93;background:#f2f5fa;border:1px solid #eaf0f7;border-radius:20px;padding:5px 10px}.private-badge span{font-size:15px;vertical-align:-1px;color:#7f98bc}.folder-scene{height:150px;width:182px;margin:8px auto 16px;position:relative}.folder-back{position:absolute;top:29px;left:11px;width:157px;height:108px;border-radius:12px;background:#c5d8fa;transform:rotate(-6deg)}.folder-back:before{content:"";position:absolute;left:0;top:-13px;width:66px;height:29px;border-radius:10px;background:#c5d8fa}.paper{position:absolute;left:30px;top:26px;width:126px;height:91px;border-radius:7px;background:#f9fbff;border:1px solid #d9e5f8;box-shadow:0 -2px 12px #b9cae933}.paper-one{transform:rotate(3deg)}.paper-two{left:24px;top:38px;transform:rotate(-2deg)}.folder-front{position:absolute;left:8px;top:61px;width:168px;height:86px;border-radius:9px 11px 15px 15px;background:linear-gradient(140deg,#6398f8,#3d74df);box-shadow:0 13px 25px -13px #4d7cca95;transform:rotate(-3deg)}.folder-line{position:absolute;left:22px;top:27px;width:36px;height:4px;border-radius:4px;background:#ffffff63}.folder-dot{position:absolute;bottom:18px;right:20px;width:8px;height:8px;border-radius:50%;background:#ffffff76}.intro{text-align:center;padding:12px 28px 31px}.overline{color:#8b9ab0;font-size:11px;letter-spacing:3px;margin:0 0 13px}h1{font-weight:650;font-size:31px;letter-spacing:1.2px;line-height:1.4;margin:0 0 17px}.description{font-size:14px;color:var(--muted);line-height:1.95;margin:0}.privacy-note{margin:0 34px 30px;padding:19px 21px;border:1px solid #eaf0f7;border-radius:12px;background:#fafbfd;display:flex;gap:16px;align-items:center}.privacy-note strong{font-size:12px;font-weight:550;letter-spacing:.3px}.privacy-note p{color:#909aa8;font-size:11px;line-height:1.75;margin:5px 0 0}.lock{position:relative;flex-shrink:0;width:17px;height:15px;border:1.5px solid #98a9c0;border-radius:4px;margin-top:6px}.lock:before{content:"";position:absolute;width:9px;height:10px;border:1.5px solid #98a9c0;border-bottom:0;border-radius:8px 8px 0 0;left:2.5px;top:-9px}.lock:after{content:"";position:absolute;width:2px;height:4px;background:#98a9c0;left:6px;top:4px;border-radius:2px}.card-bottom{border-top:1px solid #edf0f5;display:flex;justify-content:space-between;gap:14px;padding:18px 34px;font-size:10px;color:#99a3b1;letter-spacing:.5px}.quiet-note{font-family:Georgia,serif;font-style:italic;letter-spacing:.3px;font-size:12px;color:#a1acbb;margin:25px 0 0}footer{height:68px;border-top:1px solid #e5eaf1;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#a0a9b6;font-size:10px;letter-spacing:1.2px}
@media(max-width:600px){.shell{width:calc(100% - 36px)}.masthead{height:88px}.wordmark{font-size:14px}.wordmark-en{font-size:9px;margin-left:0}.header-note{display:none}main{padding:14px 0 28px}.space-card{border-radius:18px}.card-top{padding:24px 22px}.folder-scene{margin-top:10px;margin-bottom:8px;transform:scale(.9)}h1{font-size:27px;letter-spacing:.8px}.intro{padding:7px 15px 26px}.description{font-size:13px}.privacy-note{margin:0 20px 25px;padding:16px 15px;gap:13px}.privacy-note p{font-size:10px}.card-bottom{padding:17px 21px;font-size:9px;letter-spacing:0}.quiet-note{font-size:11px;margin-top:22px}footer{height:65px;font-size:9px;letter-spacing:.5px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}