/* 悬浮客服配套样式 —— 右下角悬浮球 + 服务面板 + AI 客服对话框
   依赖：与本目录 float-service.js 的 id/class 约定一致
   主题：默认科技蓝；换肤 = 在 .sf-wrap 上加主题类（xsd-t-green 等，见 xsd-themes.css），
         或直接覆盖 --xsd-brand 等变量 */
.sf-wrap {
  /* 统一主题变量（所有 xsd 模块通用命名） */
  --xsd-brand: #1667FF; --xsd-brand-deep: #0E2A5C;
  --xsd-brand-soft: #F5F8FF; --xsd-brand-border: #D6E2FF;
  --xsd-accent: #FFD166;
  /* 模块旧变量别名（兼容既有用法） */
  --sf-brand: var(--xsd-brand);
  position: fixed; right: 18px; bottom: 18px; z-index: 9990;
  display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }

/* ---------- 悬浮球 ---------- */
.sf-fab { width: 56px; height: 56px; border-radius: 50%; border: 0; cursor: pointer;
  background: linear-gradient(135deg, var(--xsd-brand), var(--xsd-brand-deep)); color: #fff;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--xsd-brand) 38%, transparent);
  display: flex; align-items: center; justify-content: center;
  transition: transform .22s ease, box-shadow .22s ease; }
.sf-fab:hover { transform: translateY(-3px);
  box-shadow: 0 12px 30px color-mix(in srgb, var(--xsd-brand) 50%, transparent); }
.sf-fab.on { transform: rotate(90deg); }
.sf-fab svg { width: 26px; height: 26px; }

/* ---------- 服务面板 ---------- */
.sf-panel { width: 176px; background: #fff; border: 1px solid #E6EAF2; border-radius: 14px;
  box-shadow: 0 12px 32px rgba(13, 27, 46, .14); overflow: hidden;
  opacity: 0; visibility: hidden; transform: translateY(8px) scale(.96); transform-origin: bottom right;
  transition: opacity .2s ease, transform .2s ease, visibility .2s; }
.sf-panel.open { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.sf-item { display: flex; align-items: center; gap: 9px; padding: 12px 14px;
  font-size: 13px; color: #3E4C63; cursor: pointer; border-bottom: 1px solid #F0F3F8; }
.sf-item:last-child { border-bottom: 0; }
.sf-item:hover { background: var(--xsd-brand-soft); color: var(--xsd-brand); }
.sf-item .ico { width: 22px; text-align: center; font-size: 15px; }

/* ---------- AI 客服对话框 ---------- */
.sf-chatbox { width: 330px; max-width: calc(100vw - 36px); background: #fff;
  border: 1px solid #E6EAF2; border-radius: 16px; overflow: hidden;
  box-shadow: 0 18px 44px rgba(13, 27, 46, .18);
  opacity: 0; visibility: hidden; transform: translateY(10px); transform-origin: bottom right;
  transition: opacity .22s ease, transform .22s ease, visibility .22s; }
.sf-chatbox.open { opacity: 1; visibility: visible; transform: translateY(0); }

.sf-chat-head { display: flex; align-items: center; gap: 10px; padding: 13px 15px;
  background: linear-gradient(135deg, var(--xsd-brand-deep), var(--xsd-brand)); color: #fff; }
.sf-chat-head .ava { width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,.22);
  display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; }
.sf-chat-head .ttl { flex: 1; font-size: 14px; font-weight: 600; }
.sf-chat-head .cls { cursor: pointer; opacity: .8; font-size: 18px; line-height: 1; }
.sf-chat-head .cls:hover { opacity: 1; }

.sf-chat-body { height: 300px; overflow-y: auto; padding: 14px; background: #F7F9FC; }
.msg { max-width: 82%; padding: 9px 12px; border-radius: 12px; font-size: 13px;
  line-height: 1.65; white-space: pre-wrap; word-break: break-word; margin-bottom: 10px; }
.msg.bot { background: #fff; color: #1A2B44; border: 1px solid #E9EDF5; border-bottom-left-radius: 4px; }
.msg.user { margin-left: auto; background: var(--xsd-brand); color: #fff; border-bottom-right-radius: 4px; }
.msg-row { display: flex; gap: 7px; align-items: flex-start; }
.msg-row .chat-avatar { flex: none; width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, var(--xsd-brand-deep), var(--xsd-brand)); color: #fff; font-size: 11px;
  display: flex; align-items: center; justify-content: center; }

.chip-row { padding: 0 14px 10px; display: flex; flex-wrap: wrap; gap: 6px; background: #F7F9FC; }
.chip-q { font-size: 12px; padding: 5px 10px; border-radius: 20px; cursor: pointer;
  background: #fff; color: var(--xsd-brand); border: 1px solid var(--xsd-brand-border); }
.chip-q:hover { background: var(--xsd-brand); color: #fff; }

.sf-chat-foot { display: flex; gap: 8px; padding: 10px; border-top: 1px solid #E9EDF5; background: #fff; }
.sf-chat-foot input { flex: 1; min-width: 0; padding: 8px 11px; font-size: 13px;
  border: 1px solid #E0E6F0; border-radius: 9px; outline: none; }
.sf-chat-foot input:focus { border-color: var(--xsd-brand); }
.sf-send { padding: 8px 15px; font-size: 13px; border: 0; border-radius: 9px; cursor: pointer;
  background: var(--xsd-brand); color: #fff; }

/* 移动端：贴边小一号 */
@media (max-width: 560px) {
  .sf-wrap { right: 12px; bottom: 12px; }
  .sf-fab { width: 50px; height: 50px; }
  .sf-chatbox { width: calc(100vw - 24px); }
  .sf-chat-body { height: 260px; }
}