:root{--primary: #1677ff;--primary-dark: #0958d9;--primary-light: #e6f0ff;--text: #1f2329;--text-2: #646a73;--text-3: #8f959e;--border: #e5e6eb;--bg: #f5f6f7;--card: #ffffff;--danger: #f53f3f;--success: #00b42a;--warning: #ff7d00;--radius: 10px}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}button{font:inherit;border:none;background:none;cursor:pointer;color:inherit}input{font:inherit;border:none;outline:none;background:none;color:inherit}a{color:var(--primary);text-decoration:none}.page{max-width:480px;margin:0 auto;min-height:100vh;padding:16px 16px 48px}.brand{display:flex;flex-direction:column;align-items:center;padding:32px 0 24px}.brand-name{font-size:24px;font-weight:700;letter-spacing:1px}.brand-sub{margin-top:6px;font-size:13px;color:var(--text-3)}.card{background:var(--card);border-radius:var(--radius);padding:20px 16px;box-shadow:0 1px 4px #0000000a}.card+.card{margin-top:12px}.card-title{font-size:15px;font-weight:600;margin-bottom:12px}.field{display:block;margin-bottom:14px}.field-label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}.field-input{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;background:#fff;padding:0 12px;height:46px}.field-input:focus-within{border-color:var(--primary)}.field-input input{flex:1;height:100%;min-width:0}.field-input input::placeholder{color:var(--text-3)}.code-btn{flex-shrink:0;color:var(--primary);font-size:14px;padding:6px 0 6px 12px;border-left:1px solid var(--border);margin-left:12px;white-space:nowrap}.code-btn:disabled{color:var(--text-3)}.form-error{color:var(--danger);font-size:13px;margin:2px 0 10px}.form-tip{color:var(--text-3);font-size:12px;margin-top:10px}.btn{display:flex;align-items:center;justify-content:center;width:100%;height:46px;border-radius:8px;font-size:16px;font-weight:500}.btn-primary{background:var(--primary);color:#fff}.btn-primary:active{background:var(--primary-dark)}.btn-primary:disabled{background:#a8c7fa}.btn-plain{background:var(--primary-light);color:var(--primary)}.btn-sm{width:auto;height:32px;padding:0 12px;font-size:13px;border-radius:6px;display:inline-flex}.invite-banner{background:linear-gradient(135deg,#1677ff,#4096ff);color:#fff;border-radius:var(--radius);padding:16px;text-align:center;margin-bottom:12px;font-size:15px}.invite-banner.invalid{background:#fff2f0;color:var(--danger)}.success-icon{width:56px;height:56px;border-radius:50%;background:#e8f7ee;color:var(--success);display:flex;align-items:center;justify-content:center;font-size:30px;margin:12px auto}.success-title{text-align:center;font-size:17px;font-weight:600}.success-sub{text-align:center;color:var(--text-2);font-size:14px;margin:8px 0 20px}.topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 0 12px}.topbar-title{font-size:17px;font-weight:600}.topbar button{color:var(--text-2);font-size:14px}.tabs{display:flex;background:var(--card);border-radius:var(--radius);padding:4px;margin-bottom:12px}.tabs button{flex:1;height:36px;border-radius:8px;font-size:14px;color:var(--text-2)}.tabs button.active{background:var(--primary);color:#fff;font-weight:500}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.stat-item{background:var(--bg);border-radius:8px;padding:12px}.stat-value{font-size:19px;font-weight:700}.stat-value.highlight{color:var(--primary)}.stat-label{font-size:12px;color:var(--text-3);margin-top:2px}.link-row{display:flex;align-items:center;gap:8px;background:var(--bg);border-radius:8px;padding:10px 12px;word-break:break-all}.link-row .link-text{flex:1;font-size:13px;color:var(--text-2);min-width:0}.qr-wrap{display:flex;flex-direction:column;align-items:center;padding:8px 0 4px}.qr-wrap img{width:168px;height:168px}.qr-tip{font-size:12px;color:var(--text-3);margin-top:8px}.kv-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px}.kv-row:last-child{border-bottom:none}.kv-row .k{color:var(--text-2)}.kv-row .v{font-weight:500;text-align:right}.list-item{background:var(--card);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px;box-shadow:0 1px 4px #0000000a}.list-item-main{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.list-item-title{font-weight:600;font-size:15px}.list-item-amount{font-weight:700;color:var(--primary);white-space:nowrap}.list-item-sub{color:var(--text-2);font-size:13px;margin-top:6px}.list-item-sub .sep{margin:0 6px;color:var(--border)}.status-pill{display:inline-block;font-size:12px;padding:2px 8px;border-radius:10px;white-space:nowrap}.status-pending{background:#fff7e8;color:var(--warning)}.status-paid{background:#e8f7ee;color:var(--success)}.status-rejected{background:#fff2f0;color:var(--danger)}.load-more{display:block;width:100%;padding:12px;text-align:center;color:var(--primary);font-size:14px}.list-empty{text-align:center;color:var(--text-3);font-size:13px;padding:32px 0}.sheet-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:flex-end;justify-content:center;z-index:100}.sheet{background:var(--card);width:100%;max-width:480px;border-radius:14px 14px 0 0;padding:20px 16px calc(20px + env(safe-area-inset-bottom))}.sheet-title{font-size:16px;font-weight:600;margin-bottom:16px;text-align:center}.sheet-actions{display:flex;gap:10px;margin-top:16px}.sheet-actions .btn{flex:1}.empty-state{text-align:center;padding:80px 24px}.empty-state h1{font-size:22px;margin-bottom:8px}.empty-state p{color:var(--text-3);margin-bottom:20px}.loading-text{text-align:center;color:var(--text-3);padding:40px 0;font-size:14px}.toast{position:fixed;left:50%;bottom:80px;transform:translate(-50%);background:#000000bf;color:#fff;font-size:14px;padding:10px 18px;border-radius:8px;z-index:200;max-width:80%;text-align:center}