:root{--bg:#131416;--panel:#1d1f22;--panel-2:#24272b;--line:#2c3034;--text:#e7eaee;--muted:#8f979f;--accent:#56c1e0;--ok:#5cc98b;--danger:#e2685f;--radius:12px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font:15px/1.6 PingFang SC,Microsoft YaHei,Hiragino Sans GB,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}.wrap{max-width:900px;margin:0 auto;padding:40px 24px 80px}.head h1{letter-spacing:.5px;align-items:center;gap:10px;margin:0 0 6px;font-size:26px;display:flex}.head .dot{background:var(--accent);border-radius:3px;width:12px;height:12px;box-shadow:0 0 18px #56c1e099}.sub{color:var(--muted);margin:0;font-size:14px}.drop{border:1.5px dashed var(--line);border-radius:var(--radius);text-align:center;cursor:pointer;background:linear-gradient(#56c1e00a,#0000);margin:24px 0 18px;padding:34px 20px;transition:border-color .15s,background 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