/* ===== Footer ===== */
.sa-app .sa-footer{position:relative;overflow:hidden;background:linear-gradient(180deg,#dbeafe 0%,#eff6ff 50%,#f8fafc 100%)}
.sa-app .sa-footer .sa-footer-deco{position:absolute;inset:0;pointer-events:none;z-index:0;background:radial-gradient(ellipse at 80% 80%,rgba(37,99,235,.04) 0%,transparent 40%),radial-gradient(ellipse at 20% 20%,rgba(6,182,212,.03) 0%,transparent 40%)}

/* ===== 遮罩层 ===== */
.sa-app .sa-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:49;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.sa-app .sa-overlay.sa-show{opacity:1;visibility:visible}

/* ===== 面板通用 ===== */
.sa-app .sa-panel{transition:transform .4s cubic-bezier(.16,1,.3,1),opacity .3s ease}
.sa-app .sa-panel.sa-hidden{transform:translateY(100%);opacity:0;pointer-events:none}
.sa-app .sa-panel.sa-visible{transform:translateY(0);opacity:1;pointer-events:auto}
@media(min-width:1024px){.sa-app .sa-panel.sa-hidden{transform:translateY(16px) scale(.97)}}
@media(max-width:1023px){
.sa-app .sa-panel{bottom:calc(4rem + 80px + env(safe-area-inset-bottom))!important;right:0!important;left:0!important;width:100%!important;max-width:100%!important;border-radius:1rem 1rem 0 0!important}
}

/* ===== 输入框 ===== */
.sa-app .sa-input{width:100%;border:1.5px solid #e2e8f0;border-radius:12px;padding:10px 14px;font-size:13px;outline:none;transition:all .25s ease;background:#f8fafc;font-family:inherit}
.sa-app .sa-input:focus{border-color:#2563eb;background:#fff;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.sa-app .sa-input::placeholder{color:#94a3b8}
.sa-app .sa-input.sa-err{border-color:#ef4444;box-shadow:0 0 0 3px rgba(239,68,68,.1)}

/* ===== 运单查询结果 ===== */
.sa-app .sa-track-result{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:12px;padding:14px;margin-top:12px;display:none}
.sa-app .sa-track-result.sa-show{display:block;animation:saFadeIn .4s ease both}
.sa-app .sa-track-result .sa-tr-status{font-weight:700;color:#15803d;font-size:14px;margin-bottom:8px}
.sa-app .sa-track-result .sa-tr-info{color:#166534;font-size:12px;line-height:1.8;word-break:break-all;white-space:pre-line}
.sa-app .sa-track-result.sa-err{background:#fef2f2;border-color:#fecaca}
.sa-app .sa-track-result.sa-err .sa-tr-status{color:#dc2626}
.sa-app .sa-track-result.sa-err .sa-tr-info{color:#991b1b}

/* ===== 侧边服务栏 ===== */
.sa-app .sa-side-item{width:3rem;height:3rem;display:flex;align-items:center;justify-content:center;transition:all .3s cubic-bezier(.34,1.56,.64,1)}
.sa-app .sa-side-item:hover{transform:scale(1.12);box-shadow:0 8px 24px rgba(0,0,0,.18)}

/* ===== 返回顶部 ===== */
.sa-app .sa-back-top{transition:all .4s cubic-bezier(.34,1.56,.64,1);opacity:0;visibility:hidden;transform:translateY(20px) scale(.8)}
.sa-app .sa-back-top.sa-show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}

/* ===== 聊天滚动条 ===== */
.sa-app .sa-chat-scroll::-webkit-scrollbar{width:4px}
.sa-app .sa-chat-scroll::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:2px}

/* ===== 移动底部导航 safe-area ===== */
@media(max-width:1023px){.sa-app .sa-mobile-nav{padding-bottom:env(safe-area-inset-bottom)}}

/* ===== body 滚动锁定 ===== */
html.sa-no-scroll,body.sa-no-scroll{overflow:hidden!important}

@keyframes saFadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ===== HEADER ===== */

/* ===== 导航栏隔离样式 ===== */
.sa-nav-wrap{
  position:relative;
  z-index:9999;
  font-family:'Noto Sans SC',sans-serif;
  -webkit-tap-highlight-color:transparent;
}

/* ===== 导航栏 ===== */
.sa-nav-wrap .nav-bar{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:9998;

  /* 顶部默认：淡白磨砂（不再透明） */
  background:rgba(255,255,255,.18);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);

  transition:all .3s ease;
}

/* 滚动状态 */
.sa-nav-wrap .nav-bar.nav-scrolled{
  background:rgba(255,255,255,.98)!important;
  box-shadow:0 1px 20px rgba(0,0,0,.06)!important;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}

/* ===== 统一文字颜色（核心修改）===== */
.sa-nav-wrap .nav-link{
  color:#334155 !important;
}

.sa-nav-wrap .nav-link:hover{
  color:#2563eb !important;
}

.sa-nav-wrap .navbar-link{
  color:#334155 !important;
}

.sa-nav-wrap .navbar-link:hover{
  color:#2563eb !important;
}

.sa-nav-wrap .navbar-icon{
  color:#2563eb !important;
}

.sa-nav-wrap .navbar-text{
  color:#1e293b !important;
}

.sa-nav-wrap .navbar-text-sub{
  color:#64748b !important;
}

/* 滚动后文字仍保持清晰 */
.sa-nav-wrap .nav-bar.nav-scrolled .nav-link,
.sa-nav-wrap .nav-bar.nav-scrolled .navbar-link{
  color:#334155 !important;
}

/* 菜单打开时隐藏logo和按钮区 */
.sa-nav-wrap.menu-open .nav-logo-area,
.sa-nav-wrap.menu-open .nav-btn-area{
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease;
}

/* 遮罩 */
.sa-nav-wrap .menu-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.45);
  z-index:9997;
  opacity:0;
  visibility:hidden;
  transition:all .3s ease;
}

.sa-nav-wrap.menu-open .menu-overlay{
  opacity:1;
  visibility:visible;
}

/* 移动菜单 */
.sa-nav-wrap .sa-mobile-menu{
  position:fixed;
  top:0;
  right:0;
  width:300px;
  max-width:85%;
  height:100vh;
  background:#fff;
  z-index:9999;
  transform:translateX(100%);
  transition:transform .3s ease;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
  padding:24px;
}

/* 打开菜单 */
.sa-nav-wrap.menu-open .sa-mobile-menu{
  transform:translateX(0);
}

/* PC端恢复 */
@media (min-width:1024px){

  .sa-nav-wrap .sa-mobile-menu{
    position:relative;
    width:auto;
    height:auto;
    background:transparent;
    transform:none!important;
    overflow:visible;
    padding:0;
  }

  .sa-nav-wrap .menu-overlay{
    display:none;
  }
}