miniprogram: 用永平版本替换（含超级个体、会员详情、提现等）

- 来源: 一场soul的创业实验-永平/soul/miniprogram
- 新增: addresses/agreement/privacy/withdraw-records 等页面
- 新增: components/icon, utils/chapterAccessManager, readingTracker
- 删除: 上传脚本、部署说明等冗余文件
- 同步永平最新结构和功能

Co-authored-by: Cursor <cursoragent@cursor.com>

miniprogram/pages/read/read.wxss

@@ -44,9 +44,13 @@
   height: 88rpx;
 }
 
-.nav-back, .nav-share {
+.nav-back, .nav-right-placeholder {
   width: 72rpx;
   height: 72rpx;
+  flex-shrink: 0;
+}
+
+.nav-back {
   border-radius: 50%;
   background: #1c1c1e;
   display: flex;
@@ -54,13 +58,12 @@
   justify-content: center;
 }
 
-.back-arrow {
-  font-size: 36rpx;
-  color: rgba(255, 255, 255, 0.8);
+.nav-right-placeholder {
+  /* 占位保持标题居中 */
 }
 
-.share-icon {
-  font-size: 32rpx;
+.back-arrow {
+  font-size: 36rpx;
   color: rgba(255, 255, 255, 0.8);
 }
 
@@ -827,12 +830,39 @@
   font-size: 32rpx;
 }
 
-.login-notice {
-  font-size: 22rpx;
-  color: rgba(255, 255, 255, 0.3);
+.login-agree-row {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: center;
   margin-top: 32rpx;
-  display: block;
+  font-size: 22rpx;
+  color: rgba(255, 255, 255, 0.5);
 }
+.agree-checkbox {
+  width: 32rpx;
+  height: 32rpx;
+  border: 2rpx solid rgba(255, 255, 255, 0.5);
+  border-radius: 6rpx;
+  margin-right: 12rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 22rpx;
+  color: #fff;
+  flex-shrink: 0;
+}
+.agree-checked {
+  background: #00CED1;
+  border-color: #00CED1;
+}
+.agree-text { color: rgba(255, 255, 255, 0.6); }
+.agree-link {
+  color: #00CED1;
+  text-decoration: underline;
+  padding: 0 4rpx;
+}
+.btn-wechat-disabled { opacity: 0.6; }
 
 /* ===== 支付中加载 ===== */
 .loading-box {
@@ -915,3 +945,40 @@
   text-align: center;
   display: block;
 }
+
+/* ===== 右下角悬浮分享按钮 ===== */
+.fab-share {
+  position: fixed;
+  right: 32rpx;
+  width:70rpx!important;
+  bottom: calc(120rpx + env(safe-area-inset-bottom));
+  height: 70rpx;
+  border-radius: 60rpx;
+  background: linear-gradient(135deg, #00CED1 0%, #20B2AA 100%);
+  box-shadow: 0 8rpx 32rpx rgba(0, 206, 209, 0.4);
+  padding: 0;
+  margin: 0;
+  border: none;
+  z-index: 9999;
+  display:flex;
+  align-items: center;
+  justify-content: center;
+  transition: transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.fab-share::after {
+  border: none;
+}
+
+.fab-share:active {
+  transform: scale(0.95);
+  box-shadow: 0 4rpx 20rpx rgba(0, 206, 209, 0.5);
+}
+
+.fab-icon {
+  padding:16rpx;
+  width: 50rpx;
+  height: 50rpx;
+  display: block;
+}
+