/* ============================
   心帘心品牌 - 全局窗帘拉开加载动画
   ============================ */
:root {
  --brand-primary: #8B5A2B;
  --brand-secondary: #A67C52;
  --brand-bg: #F5F0E8;
  --brand-text: #5C402A;
}

.global-loader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--brand-bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease;
}
.global-loader.fade-out {
  opacity: 0;
  pointer-events: none;
}
.loader-curtains {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}
.loader-curtain {
  position: absolute;
  top: 0;
  width: 55%;
  height: 100%;
  background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-secondary) 50%, var(--brand-primary) 100%);
  transition: transform 1s cubic-bezier(0.65, 0, 0.35, 1);
  box-shadow: 0 0 50px rgba(0,0,0,0.2);
}
.loader-curtain::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 2px, transparent 2px, transparent 15px);
}
.loader-curtain-left {
  left: 0;
  border-radius: 0 0 30px 0;
  transform: translateX(0);
}
.loader-curtain-right {
  right: 0;
  border-radius: 0 0 0 30px;
  background: linear-gradient(-90deg, var(--brand-primary) 0%, var(--brand-secondary) 50%, var(--brand-primary) 100%);
  transform: translateX(0);
}
.global-loader.open .loader-curtain-left {
  transform: translateX(-100%);
}
.global-loader.open .loader-curtain-right {
  transform: translateX(100%);
}
.loader-content {
  position: relative;
  z-index: 10;
  text-align: center;
  opacity: 0;
  transition: opacity 0.5s ease 0.3s;
}
.global-loader.open .loader-content {
  opacity: 1;
}
.loader-logo {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 10px 30px rgba(139, 90, 43, 0.3);
}
.loader-brand {
  font-size: 32px;
  font-weight: 700;
  color: var(--brand-primary);
  margin-bottom: 8px;
  letter-spacing: 3px;
}
.loader-slogan {
  font-size: 16px;
  color: var(--brand-secondary);
  margin-bottom: 30px;
}
.loader-progress {
  width: 200px;
  height: 4px;
  background: rgba(139, 90, 43, 0.2);
  border-radius: 2px;
  margin: 0 auto;
  overflow: hidden;
}
.loader-progress-bar {
  width: 0;
  height: 100%;
  background: var(--brand-primary);
  border-radius: 2px;
  animation: progress 1.5s ease forwards;
}
@keyframes progress {
  0% { width: 0; }
  100% { width: 100%; }
}

/* 品牌页眉 */
.brand-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: white;
  border-bottom: 1px solid rgba(139, 90, 43, 0.1);
}
.brand-logo {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}
.brand-text {
  line-height: 1.2;
}
.brand-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--brand-primary);
  margin: 0;
  white-space: nowrap;
}
.brand-subtitle {
  font-size: 12px;
  color: #999;
  margin: 2px 0 0 0;
}