*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
:root{
  --brand:#0a6c8c;
  --brand-d:#08556f;
  --brand-l:#e6f4f8;
  --accent:#e8563a;
  --ink:#1f2d3d;
  --sub:#6b7a8c;
  --line:#e4ebf0;
  --bg:#f4f7f9;
}
html,body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.6;
}
.wrap{max-width:640px;margin:0 auto;min-height:100vh;background:#fff;
  box-shadow:0 0 24px rgba(0,0,0,.06);}

/* 顶部品牌条 */
.topbar{display:flex;align-items:center;gap:11px;padding:12px 16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-d));color:#fff;}
.topbar .logo{width:38px;height:38px;border-radius:50%;background:#fff;padding:3px;flex:none;}
.topbar .htext{line-height:1.3;}
.topbar .htext b{font-size:16px;letter-spacing:.5px;}
.topbar .htext span{display:block;font-size:11px;opacity:.9;}

/* 横幅 */
.hero{width:100%;display:block;background:var(--brand-d);}
.hero img{width:100%;display:block;}

/* 信任条 */
.trust{display:flex;background:var(--brand-l);padding:11px 6px;}
.trust div{flex:1;text-align:center;font-size:12px;color:var(--brand-d);}

/* 标题 */
.head{text-align:center;padding:24px 16px 8px;}
.head .eyebrow{display:inline-block;font-size:12px;color:var(--brand-d);
  background:var(--brand-l);padding:5px 14px;border-radius:20px;margin-bottom:12px;font-weight:600;}
.head h1{font-size:22px;color:var(--ink);letter-spacing:1px;font-weight:800;}
.head p{font-size:13px;color:var(--sub);margin-top:8px;}

/* 表单 */
form{padding:16px 18px 10px;}
.field{margin-bottom:18px;}
.field>label{display:block;font-size:14px;margin-bottom:8px;font-weight:600;}
.field>label .req{color:var(--accent);margin-left:2px;}
.field>label small{font-weight:400;color:#9aabb8;margin-left:4px;font-size:11px;}
.field input[type=text],.field input[type=tel],.field input[type=date],
.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 13px;
  font-size:15px;background:#fbfdfe;color:var(--ink);outline:none;transition:border .2s;
  -webkit-appearance:none;appearance:none;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);background:#fff;}
.field textarea{resize:vertical;min-height:76px;}
.field .err{color:var(--accent);font-size:12px;margin-top:5px;display:none;}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--accent);background:#fff8f7;}
.field.invalid .err{display:block;}

/* 科室 */
.depts{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;}
.depts button{border:1px solid var(--line);background:#fbfdfe;border-radius:10px;
  padding:12px 4px;font-size:13px;cursor:pointer;color:var(--ink);}
.depts button.on{border-color:var(--brand);background:var(--brand-l);color:var(--brand-d);font-weight:700;}

/* 滑块 */
.slider-box{margin:4px 0 18px;user-select:none;-webkit-user-select:none;}
.slider-bar{position:relative;height:48px;background:#eef3f6;border-radius:24px;
  overflow:hidden;border:1px solid var(--line);touch-action:none;}
.slider-bar .track{position:absolute;top:0;bottom:0;left:52px;right:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:#8aa0b0;pointer-events:none;letter-spacing:.5px;}
.slider-bar .fill{position:absolute;left:0;top:0;bottom:0;width:0;
  background:linear-gradient(90deg,#d6ecf3,#b8e0ec);}
.slider-bar.ok .fill{background:linear-gradient(90deg,#c9ecd6,#9ddcb6);}
.slider-bar.ok .track{color:#2e7d4f;font-weight:600;}
.slider-btn{position:absolute;top:4px;left:4px;width:40px;height:40px;
  background:linear-gradient(135deg,#0a6c8c,#08556f);border-radius:50%;
  box-shadow:0 3px 8px rgba(10,108,140,.35);display:flex;align-items:center;
  justify-content:center;color:#fff;font-size:18px;cursor:grab;z-index:2;touch-action:none;}
.slider-btn:active{cursor:grabbing;}

/* 提交 */
.submit{width:100%;border:none;border-radius:12px;padding:15px;font-size:17px;font-weight:700;
  color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-d));
  cursor:pointer;letter-spacing:2px;}
.submit:disabled{background:#b9c6cf;cursor:not-allowed;letter-spacing:1px;}
.agree{font-size:11px;color:var(--sub);text-align:center;margin-top:12px;line-height:1.6;}

/* 底部 */
footer{padding:24px 18px 32px;text-align:center;}
footer .safe{display:inline-block;font-size:11px;color:#2e7d4f;background:#eef8f1;
  border:1px solid #cfe9d8;padding:5px 14px;border-radius:20px;margin-bottom:12px;}
footer p{font-size:11.5px;color:#9aabb8;line-height:1.9;}
footer p b{color:var(--brand-d);font-size:14px;}

/* 弹窗 */
.mask{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;
  align-items:center;justify-content:center;z-index:99;}
.mask.show{display:flex;}
.dialog{background:#fff;border-radius:14px;width:80%;max-width:320px;padding:26px 20px;text-align:center;}
.dialog .ic{font-size:42px;}
.dialog h3{margin:10px 0 6px;font-size:18px;}
.dialog p{font-size:13px;color:var(--sub);margin-bottom:16px;}
.dialog button{border:none;background:var(--brand);color:#fff;padding:10px 30px;
  border-radius:8px;font-size:15px;cursor:pointer;}

.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden;}

/* 小屏手机适配 */
@media (max-width:360px){
  .trust{padding:9px 2px;}
  .trust div{font-size:11px;}
  .head h1{font-size:19px;}
  form{padding:14px 12px 8px;}
  .depts button{font-size:12px;padding:10px 2px;}
}