*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:#f5f5f5;color:#1a1a1a;min-height:100vh;font-size:15px;-webkit-tap-highlight-color:transparent}
a{color:#3b82f6;text-decoration:none}

/* app bar - WeChat compatible */
.app-bar{position:sticky;top:0;z-index:100;background:#1e40af;color:#fff;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;font-size:16px;font-weight:600}
.app-bar .back{color:#fff;font-size:18px;cursor:pointer;background:none;border:none;padding:4px 8px 4px 0}
.page{padding:12px 14px 24px;max-width:100%}

/* card */
.card{background:#fff;border-radius:10px;padding:14px 16px;margin-bottom:10px;box-shadow:0 1px 3px rgba(0,0,0,0.06)}
.card-title{font-size:15px;font-weight:600;margin-bottom:8px}
.card-row{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:#6b7280;padding:5px 0}
.card-row .val{color:#1f2937;font-weight:500}

/* form */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:13px;color:#6b7280;margin-bottom:4px;font-weight:500}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 14px;border:1px solid #d1d5db;border-radius:8px;font-size:16px;outline:none;transition:border-color .15s;-webkit-appearance:none}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:#3b82f6}
.form-group textarea{min-height:100px;resize:vertical}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 22px;border-radius:8px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .15s;touch-action:manipulation}
.btn-primary{background:#3b82f6;color:#fff}.btn-primary:active{background:#2563eb}
.btn-secondary{background:#e5e7eb;color:#374151}.btn-secondary:active{background:#d1d5db}
.btn-danger{background:#ef4444;color:#fff}.btn-danger:active{background:#dc2626}
.btn-success{background:#10b981;color:#fff}.btn-success:active{background:#059669}
.btn-warning{background:#f59e0b;color:#fff}.btn-warning:active{background:#d97706}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:6px}
.btn-block{width:100%}
.btn-outline{background:transparent;border:1px solid #d1d5db;color:#374151}

/* stage bar */
.stage-bar{display:flex;gap:4px;flex-wrap:wrap;margin:8px 0 16px}
.stage-dot{padding:5px 12px;border-radius:16px;font-size:12px;font-weight:500}
.stage-dot.done{background:#d1fae5;color:#065f46}
.stage-dot.current{background:#dbeafe;color:#1e40af;border:2px solid #3b82f6;font-weight:600}
.stage-dot.pending{background:#f3f4f6;color:#9ca3af}
.stage-dot.overdue{background:#fee2e2;color:#dc2626;font-weight:700}

/* timeline */
.timeline{margin:12px 0}
.tl-item{display:flex;gap:10px;padding:10px 0;border-bottom:1px solid #f3f4f6}
.tl-dot{width:10px;height:10px;border-radius:50%;margin-top:5px;flex-shrink:0}
.tl-done{background:#10b981}.tl-current{background:#3b82f6}.tl-pending{background:#d1d5db}.tl-overdue{background:#ef4444}
.tl-info{flex:1}.tl-name{font-size:14px;font-weight:600}.tl-meta{font-size:12px;color:#9ca3af;margin-top:3px}

/* party badges */
.party-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid #f3f4f6;font-size:14px}
.badge{display:inline-block;font-size:10px;padding:2px 6px;border-radius:4px;font-weight:600;margin-left:6px}
.badge-suspect{background:#fef2f2;color:#dc2626}
.badge-victim{background:#ecfdf5;color:#059669}
.badge-witness{background:#f0f9ff;color:#0284c7}

/* action bar */
.action-bar{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}

/* empty */
.empty{text-align:center;padding:48px 20px;color:#9ca3af}
.empty .icon{font-size:48px;margin-bottom:12px}

/* toast */
.toast{position:fixed;top:60px;left:50%;transform:translateX(-50%);background:#1f2937;color:#fff;padding:12px 24px;border-radius:8px;font-size:14px;z-index:999;opacity:0;transition:opacity .3s;max-width:90%}
.toast.show{opacity:1}
.toast.error{background:#dc2626}

/* login */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1e40af,#3b82f6);padding:16px}
.login-card{background:#fff;border-radius:12px;padding:32px 24px;width:100%;max-width:360px}
.login-card h2{text-align:center;font-size:19px;margin-bottom:4px}
.login-card .sub{text-align:center;font-size:13px;color:#9ca3af;margin-bottom:24px}
.tab-row{display:flex;margin-bottom:20px;border-radius:8px;overflow:hidden;border:1px solid #e5e7eb}
.tab-row .tab{flex:1;text-align:center;padding:10px;font-size:14px;font-weight:500;cursor:pointer;background:#f9fafb;color:#6b7280;border:none;touch-action:manipulation}
.tab-row .tab.active{background:#3b82f6;color:#fff}

/* modal */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:200;display:none;align-items:flex-end;justify-content:center}
.modal-overlay.show{display:flex}
.modal-box{background:#fff;border-radius:12px 12px 0 0;width:100%;max-height:60vh;overflow-y:auto;box-shadow:0 -4px 20px rgba(0,0,0,0.15);animation:slideUp .25s ease}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal-head{padding:16px 18px;border-bottom:1px solid #f3f4f6;display:flex;justify-content:space-between;align-items:center;font-size:16px;font-weight:600}
.modal-close{background:none;border:none;font-size:24px;color:#9ca3af;cursor:pointer;padding:4px 8px}
.modal-body{padding:14px 18px}
.reminder-card{padding:12px 14px;border-radius:8px;margin-bottom:8px;font-size:14px;border-left:4px solid #d1d5db;line-height:1.6}
.reminder-card.high{background:#fef2f2;border-left-color:#ef4444}
.reminder-card.medium{background:#fff7ed;border-left-color:#f59e0b}
.reminder-card.normal{background:#f0fdf4;border-left-color:#10b981}
.reminder-card .msg{line-height:1.6}
.reminder-card .time{font-size:11px;color:#9ca3af;margin-top:4px}