:root{--vh:1vh}.mobile-sign-page{padding:env(safe-area-inset-top,15px) env(safe-area-inset-right,15px) env(safe-area-inset-bottom,15px) env(safe-area-inset-left,15px);height:calc(var(--vh, 1vh)*100);min-height:calc(var(--vh, 1vh)*100);-webkit-box-sizing:border-box;box-sizing:border-box;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;background:#f5f5f5;margin:0;overflow:hidden;position:fixed;top:0;left:0;right:0;bottom:0}.title{-ms-flex-negative:0;flex-shrink:0;font-size:18px;font-weight:700;text-align:center;margin-bottom:15px;color:#333}.wechat-tip{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-flex:1;-ms-flex:1;flex:1;padding:20px;text-align:center}.guide-image{max-width:100%;height:auto;margin-bottom:20px}.tip-text{font-size:16px;color:#666;line-height:1.5}.signature-canvas{-webkit-box-flex:1;-ms-flex:1;flex:1;min-height:200px;border:1px solid #e5e5e5;border-radius:8px;background:#fff;margin-bottom:20px;-ms-touch-action:none;touch-action:none;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.btn-group{-ms-flex-negative:0;flex-shrink:0;display:-webkit-box;display:-ms-flexbox;display:flex;gap:10px}.clear-btn,.submit-btn{-webkit-box-flex:1;-ms-flex:1;flex:1;height:44px;border:none;border-radius:8px;font-size:16px;cursor:pointer}.clear-btn{background:#f5f5f5;color:#666;border:1px solid #e5e5e5}.submit-btn{background:#1989fa;color:#fff}.submit-btn:disabled{background:#a0cfff;cursor:not-allowed}.orientation-tip{position:fixed;top:0;left:0;width:100%;height:100%;background:hsla(0,0%,100%,.95);color:#333;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;font-size:20px;text-align:center;z-index:9999;padding:20px;-webkit-box-sizing:border-box;box-sizing:border-box;font-weight:500;line-height:1.6;-webkit-animation:fadeIn .3s ease-in-out;animation:fadeIn .3s ease-in-out}.orientation-content,.orientation-tip{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center}.orientation-content{-webkit-box-orient:vertical;-webkit-box-direction:normal;-ms-flex-direction:column;flex-direction:column;gap:10px;max-width:320px}.orientation-content p{margin:0}.tip-desc{font-size:16px;color:#666;font-weight:400}@-webkit-keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(-20px);transform:translateY(-20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0;-webkit-transform:translateY(-20px);transform:translateY(-20px)}to{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}.settings-btn{position:absolute;top:15px;right:15px;width:40px;height:40px;background:rgba(25,137,250,.1);border:1px solid #1989fa;border-radius:50%;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center;-webkit-box-align:center;-ms-flex-align:center;align-items:center;cursor:pointer;font-size:20px;color:#1989fa;z-index:1000;-webkit-transition:all .3s ease;transition:all .3s ease}.settings-btn:hover{background:rgba(25,137,250,.2);-webkit-transform:scale(1.1);transform:scale(1.1);-webkit-box-shadow:0 2px 8px rgba(25,137,250,.3);box-shadow:0 2px 8px rgba(25,137,250,.3)}.settings-panel{position:absolute;top:10px;right:10px;width:280px;background:#fff;border-radius:12px;-webkit-box-shadow:0 4px 20px rgba(0,0,0,.15);box-shadow:0 4px 20px rgba(0,0,0,.15);z-index:1001;overflow:hidden;-webkit-animation:fadeIn .3s ease;animation:fadeIn .3s ease}.settings-header{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:justify;-ms-flex-pack:justify;justify-content:space-between;-webkit-box-align:center;-ms-flex-align:center;align-items:center;padding:15px 20px;background:#f8f9fa;border-bottom:1px solid #e9ecef}.settings-header h3{margin:0;font-size:16px;font-weight:600;color:#333}.close-btn{font-size:24px;color:#999;cursor:pointer;line-height:1;padding:0;margin:0;-webkit-transition:color .3s ease;transition:color .3s ease}.close-btn:hover{color:#666}.settings-content{padding:20px}.setting-item{margin-bottom:20px}.setting-item:last-child{margin-bottom:0}.setting-item label{display:block;margin-bottom:10px;font-size:14px;font-weight:500;color:#555}.color-picker{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-align:center;-ms-flex-align:center;align-items:center;gap:15px}.color-picker input[type=color]{width:40px;height:40px;border:none;border-radius:8px;cursor:pointer;padding:0;overflow:hidden}.color-preview{width:30px;height:30px;border-radius:6px;border:1px solid #e9ecef;-webkit-box-shadow:0 1px 3px rgba(0,0,0,.1);box-shadow:0 1px 3px rgba(0,0,0,.1)}.slider{width:100%;height:6px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:#e9ecef;border-radius:3px;outline:none;margin:8px 0}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:#1989fa;border-radius:50%;cursor:pointer;-webkit-transition:all .3s ease;transition:all .3s ease}.slider::-webkit-slider-thumb:hover{background:#0c7cd5;-webkit-transform:scale(1.2);transform:scale(1.2);-webkit-box-shadow:0 0 0 8px rgba(25,137,250,.1);box-shadow:0 0 0 8px rgba(25,137,250,.1)}.slider::-moz-range-thumb{width:20px;height:20px;background:#1989fa;border-radius:50%;cursor:pointer;border:none;-webkit-transition:all .3s ease;transition:all .3s ease}.slider::-moz-range-thumb:hover{background:#0c7cd5;transform:scale(1.2);box-shadow:0 0 0 8px rgba(25,137,250,.1)}