/* ====== 海尔外骨骼体验小程序 · 公共样式 ======
   视觉：温暖亲和（白/橙/绿），老年友好（≥14px、按钮≥44px 高对比） */

:root {
  --c-primary:        #ff7a45;   /* 暖橙 - 主品牌 */
  --c-primary-deep:   #e35d23;
  --c-primary-light:  #fff1e8;
  --c-success:        #4caf85;   /* 温和绿 */
  --c-success-light:  #e8f6ef;
  --c-warning:        #f0a93b;
  --c-warning-light:  #fff7e5;
  --c-danger:         #e8543d;
  --c-danger-light:   #fdebe6;
  --c-info:           #3b8ee0;
  --c-info-light:     #e7f1fc;
  --c-text:           #1f2933;
  --c-text-2:         #4b5563;
  --c-text-3:         #6b7280;
  --c-text-muted:     #9ca3af;
  --c-bg:             #fafaf7;
  --c-bg-card:        #ffffff;
  --c-border:         #e5e7eb;
  --c-border-soft:    #f1f1ee;
  --shadow-sm:        0 1px 2px rgba(0,0,0,.04);
  --shadow:           0 4px 14px rgba(0,0,0,.06);
  --shadow-lg:        0 12px 32px rgba(0,0,0,.10);
  --r-sm: 8px;
  --r:    12px;
  --r-lg: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 44px; padding: 0 22px;
  border: 1px solid var(--c-border);
  background: #fff; color: var(--c-text);
  border-radius: var(--r-sm); font-size: 15px;
  cursor: pointer; transition: all .15s ease;
}
.btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-primary {
  background: var(--c-primary); color: #fff; border-color: var(--c-primary);
  font-weight: 600;
}
.btn-primary:hover { background: var(--c-primary-deep); border-color: var(--c-primary-deep); color: #fff; }
.btn-success {
  background: var(--c-success); color: #fff; border-color: var(--c-success);
  font-weight: 600;
}
.btn-success:hover { background: #3d9872; border-color: #3d9872; color: #fff; }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--c-danger); border-color: var(--c-danger); }
.btn-danger:hover { background: var(--c-danger); color: #fff; }
.btn-sm { min-height: 32px; padding: 0 12px; font-size: 13px; }
.btn-lg { min-height: 52px; padding: 0 32px; font-size: 16px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* 输入 */
.input, .select, .textarea {
  display: block; width: 100%;
  min-height: 44px; padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--c-border); border-radius: var(--r-sm);
  font-size: 15px; color: var(--c-text);
  transition: border-color .15s ease;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-primary-light);
}
/* 必填项校验失败：红框提示 */
.input.input-error {
  border-color: var(--c-danger);
  box-shadow: 0 0 0 3px rgba(232, 84, 61, .12);
  background: #fff8f7;
}
.input.input-error:focus { border-color: var(--c-danger); }
.textarea { min-height: 80px; resize: vertical; }
label.form-label { display: block; margin-bottom: 6px; font-size: 14px; color: var(--c-text-2); font-weight: 500; }
.req::after { content: "*"; color: var(--c-danger); margin-left: 2px; }

/* 卡片 */
.card {
  background: var(--c-bg-card);
  border-radius: var(--r);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border-soft);
}
.card-title {
  font-size: 17px; font-weight: 600; color: var(--c-text);
  margin: 0 0 14px; display: flex; align-items: center; gap: 8px;
}
.card-title .num {
  display: inline-flex; width: 26px; height: 26px; border-radius: 50%;
  background: var(--c-primary); color: #fff; align-items: center; justify-content: center;
  font-size: 13px;
}

/* 表单分组 */
.form-group { margin-bottom: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* 多选 chip */
.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 14px;
  border: 1.5px solid var(--c-border);
  background: #fff; color: var(--c-text-2);
  border-radius: 999px; font-size: 14px;
  cursor: pointer; user-select: none;
  transition: all .15s ease;
  min-height: 36px;
}
.chip:hover { border-color: var(--c-primary); }
.chip.active {
  background: var(--c-primary-light);
  border-color: var(--c-primary);
  color: var(--c-primary-deep);
  font-weight: 500;
}

/* 单选卡片 */
.radio-card {
  display: block; padding: 16px;
  border: 2px solid var(--c-border); border-radius: var(--r);
  background: #fff; cursor: pointer;
  transition: all .15s ease; position: relative;
}
.radio-card:hover { border-color: var(--c-primary); }
.radio-card.active {
  border-color: var(--c-primary);
  background: var(--c-primary-light);
}
.radio-card input { display: none; }
.radio-card .title { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.radio-card .desc  { font-size: 13px; color: var(--c-text-3); line-height: 1.5; }
.radio-card.active::after {
  content: "✓"; position: absolute; right: 14px; top: 14px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
}

/* 标签徽章 */
.badge {
  display: inline-block; padding: 2px 10px;
  border-radius: 999px; font-size: 12px;
  background: var(--c-border-soft); color: var(--c-text-2);
}
.badge-primary { background: var(--c-primary-light); color: var(--c-primary-deep); }
.badge-success { background: var(--c-success-light); color: var(--c-success); }
.badge-warning { background: var(--c-warning-light); color: var(--c-warning); }
.badge-danger  { background: var(--c-danger-light); color: var(--c-danger); }
.badge-info    { background: var(--c-info-light); color: var(--c-info); }

/* 警示框 */
.alert {
  padding: 12px 16px; border-radius: var(--r-sm);
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14px; line-height: 1.6;
}
.alert-warning { background: var(--c-warning-light); color: #8a5a13; border-left: 4px solid var(--c-warning); }
.alert-danger  { background: var(--c-danger-light); color: var(--c-danger); border-left: 4px solid var(--c-danger); }
.alert-info    { background: var(--c-info-light); color: var(--c-info); border-left: 4px solid var(--c-info); }
.alert .icon { font-size: 18px; flex-shrink: 0; }

/* Toast */
.toast {
  position: fixed; top: 24px; left: 50%; transform: translateX(-50%);
  padding: 10px 18px; background: rgba(0,0,0,.78); color: #fff;
  border-radius: 999px; font-size: 14px; z-index: 9999;
  animation: toast-in .25s ease;
}
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, -8px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* Modal */
.modal-mask {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
}
.modal {
  background: #fff; border-radius: var(--r-lg);
  max-width: 480px; width: 100%; padding: 24px;
  box-shadow: var(--shadow-lg);
  animation: modal-in .2s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(.95); }
  to   { opacity: 1; transform: scale(1); }
}

/* 通用工具 */
.flex { display: flex; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; }
.mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; } .mb-12 { margin-bottom: 12px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.text-muted { color: var(--c-text-muted); }
.text-sm { font-size: 13px; }
.text-lg { font-size: 17px; }
.fw-600 { font-weight: 600; }
.center { text-align: center; }
.hidden { display: none !important; }