/* ============================================================
 * demo.html · 预约平台演示 页面专属样式
 * 浅色主题：白卡 + 蓝系强调，遵循对比度铁律
 * ============================================================ */
.demo-layout{
  display:grid;grid-template-columns:1.22fr .88fr;gap:28px;align-items:start;
  padding-bottom:64px;
}

/* ---------- 表单卡 ---------- */
.form-card{
  position:relative;background:#FFFFFF;border:1px solid #DCE7F7;border-radius:18px;
  padding:34px 36px 30px;box-shadow:0 24px 60px -34px rgba(14,98,199,.38);
}
.form-card h2{font-size:24px;font-weight:800;color:#0B1F42;margin-bottom:6px;letter-spacing:.2px}
.form-card .lead{font-size:13.5px;color:#5A6B87;margin-bottom:22px;line-height:1.7}
.form-card .lead em{color:var(--accent-text);font-style:normal;font-weight:700}

/* 三步进度条 */
.demo-steps{display:flex;align-items:center;gap:0;margin-bottom:26px}
.demo-steps .ds{
  display:flex;align-items:center;gap:8px;font-size:12.5px;color:#5F7398;font-weight:600;white-space:nowrap;
}
.demo-steps .ds i{
  width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-style:normal;font-size:12px;font-weight:800;background:#EEF4FC;color:#5F7398;border:1px solid #DCE7F7;
  font-family:var(--font-num);
}
.demo-steps .ds.cur{color:#0E62C7}
.demo-steps .ds.cur i{background:linear-gradient(135deg,#0E62C7,#1168BF);color:#fff;border-color:transparent;box-shadow:0 4px 12px -4px rgba(14,98,199,.55)}
.demo-steps .ds-line{flex:1;height:1px;background:#DCE7F7;margin:0 12px;position:relative;min-width:24px}
.demo-steps .ds-line::after{
  content:"";position:absolute;left:0;top:-1px;height:3px;width:38%;border-radius:2px;
  background:linear-gradient(90deg,#0E62C7,#3fb3d9);
}

/* 表单网格 */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px}
.form-grid .full{grid-column:1/-1}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:0}
.field label{font-size:13px;font-weight:700;color:#1D3557;display:flex;align-items:center}
.field label .req{color:#E0455A;margin-left:3px;font-weight:800}
.field label .hint{font-weight:400;color:#5F7398;font-size:12px;margin-left:8px}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border-radius:10px;border:1px solid #D8E4F5;background:#FBFDFF;
  font-size:14px;color:#0B1F42;font-family:inherit;transition:border-color .18s,box-shadow .18s;width:100%;
}
.field textarea{height:auto;min-height:88px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#1168BF;box-shadow:0 0 0 3px rgba(17,104,191,.13);background:#fff;
}
.field input::placeholder,.field textarea::placeholder{color:#9FB0C9}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%235A6B87' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.field .err-msg{display:none;font-size:12px;color:#E0455A;margin-top:-2px}
.field.invalid input{border-color:#E0455A;box-shadow:0 0 0 3px rgba(224,69,90,.1)}
.field.invalid .err-msg{display:block}

/* 关注方向 chips */
.opt-group{display:flex;flex-wrap:wrap;gap:10px}
.opt{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border-radius:999px;cursor:pointer;
  border:1px solid #D8E4F5;background:#FBFDFF;font-size:13.5px;color:#3D5170;font-weight:600;
  transition:all .18s;user-select:none;
}
.opt input{position:absolute;opacity:0;pointer-events:none}
.opt:hover{border-color:#3fb3d9;color:#0E62C7}
.opt.on{
  background:linear-gradient(135deg,#0E62C7,#1168BF);border-color:transparent;color:#fff;
  box-shadow:0 6px 16px -8px rgba(14,98,199,.6);
}
.opt.on::before{content:"✓";font-size:12px;font-weight:800}

/* 提交区 */
.form-submit{display:flex;align-items:center;gap:16px;margin-top:26px;flex-wrap:wrap}
.form-submit .agree{font-size:12.5px;color:#5F7398;line-height:1.6;max-width:420px}
.demo-trust{
  display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:20px;padding-top:16px;border-top:1px dashed #E3ECF8;
}
.demo-trust span{font-size:12px;color:#5A6B87;display:inline-flex;align-items:center;gap:6px}
.demo-trust span::before{content:"";width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,#0E62C7,#3fb3d9)}

/* ---------- 成功态 ---------- */
.success-panel{display:none}
.success-panel.show{display:block;animation:demoIn .45s cubic-bezier(.2,.7,.3,1)}
@keyframes demoIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.success-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.success-tick{
  width:52px;height:52px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,#0E62C7,#3fb3d9);color:#fff;font-size:26px;font-weight:800;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px -10px rgba(14,98,199,.65);
}
.success-panel h2{margin:0}
.success-panel .s-sub{font-size:14px;color:#5A6B87;line-height:1.8;margin-bottom:20px}
.success-panel .s-sub b{color:#0E62C7}
.ref-row{display:flex;align-items:center;gap:10px;margin-bottom:20px;flex-wrap:wrap}
.ref-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:10px;
  background:#F0F6FF;border:1px solid #C9DDF6;font-family:var(--font-num);font-size:15px;font-weight:800;color:#0E62C7;letter-spacing:.5px;
}
.ref-copy{
  border:1px solid #D8E4F5;background:#fff;color:#3D5170;font-size:12.5px;font-weight:600;
  border-radius:8px;padding:8px 13px;cursor:pointer;transition:all .18s;font-family:inherit;
}
.ref-copy:hover{border-color:#1168BF;color:#0E62C7}
.success-grid{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start}
.s-qr{
  width:148px;border-radius:14px;border:1px solid #DCE7F7;background:#FFFFFF;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;
  padding:10px;
}
.s-qr img{display:block;width:100%;height:auto;border-radius:8px}
.s-qr span{font-size:11.5px;color:#5A6B87;font-weight:600}
.s-next{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.s-next li{display:flex;gap:10px;font-size:13.5px;color:#3D5170;line-height:1.65}
.s-next li b{color:#0B1F42}
.s-next li .n{
  flex:none;width:20px;height:20px;border-radius:6px;margin-top:1px;background:#EAF3FF;color:#0E62C7;
  font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;font-family:var(--font-num);
}
.success-panel .back{margin-top:22px;padding-top:18px;border-top:1px dashed #E3ECF8;font-size:13.5px}
.success-panel .back a{color:#0E62C7;font-weight:600;text-decoration:none;margin-right:6px}
.success-panel .back a:hover{text-decoration:underline}

/* ---------- 右侧说明栏 ---------- */
.demo-aside{display:flex;flex-direction:column;gap:20px}
.aside-card{
  background:#FFFFFF;border:1px solid #DCE7F7;border-radius:16px;padding:26px 26px 24px;
  box-shadow:0 16px 44px -30px rgba(14,98,199,.32);
}
.aside-card h3{
  font-size:16px;font-weight:800;color:#0B1F42;margin-bottom:18px;display:flex;align-items:center;gap:9px;
}
.aside-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,#0E62C7,#3fb3d9);
}
.step-list{display:flex;flex-direction:column;gap:18px}
.step{display:flex;gap:13px}
.step .n{
  flex:none;width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,rgba(14,98,199,.12),rgba(63,179,217,.16));border:1px solid rgba(14,98,199,.24);
  color:#0E62C7;font-family:var(--font-num);font-size:14px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.step h4{font-size:14.5px;font-weight:700;color:#0B1F42;margin-bottom:4px}
.step p{font-size:13px;color:#5A6B87;line-height:1.7}
.perk{
  display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:#3D5170;line-height:1.6;
}
.perk::before{content:"✓";flex:none;width:18px;height:18px;border-radius:50%;margin-top:1px;
  background:#EAF3FF;color:#0E62C7;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center}
.aside-contact{display:flex;flex-direction:column;gap:11px}
.aside-contact .row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:#3D5170;line-height:1.6}
.aside-contact .row .ic{flex:none;width:26px;height:26px;border-radius:8px;background:#F0F6FF;
  display:flex;align-items:center;justify-content:center;font-size:13px}
.aside-cta{
  background:linear-gradient(135deg,#0B2C6B,#0E62C7);border:none;color:#fff;border-radius:16px;
  padding:26px;box-shadow:0 20px 48px -22px rgba(11,44,107,.55);
}
.aside-cta h3{color:#fff}
.aside-cta h3::before{background:#FFE800}
.cta-flex{display:flex;gap:16px;align-items:flex-start}
.cta-qr{flex:none;width:96px;height:96px;border-radius:12px;background:#FFFFFF;padding:6px;
  box-shadow:0 8px 22px -8px rgba(0,0,0,.4)}
.cta-qr img{display:block;width:100%;height:100%;object-fit:contain}
.aside-cta p{font-size:13px;color:rgba(255,255,255,.82);line-height:1.8;margin:0}
.aside-cta .cta-wechat{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  font-family:var(--font-num);font-size:14px;font-weight:700;color:#fff;cursor:pointer;transition:background .18s;
  white-space:nowrap;max-width:100%;
}
.aside-cta .cta-wechat:hover{background:rgba(255,255,255,.24)}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .demo-layout{grid-template-columns:1fr}
  .demo-aside{flex-direction:column}
  .demo-aside .aside-card,.demo-aside .aside-cta{width:100%}
}
@media (max-width:720px){
  .form-card{padding:26px 20px 24px}
  .form-grid{grid-template-columns:1fr}
  .demo-aside{flex-direction:column}
  .demo-steps .ds span{display:none}
  .success-grid{grid-template-columns:1fr}
  .s-qr{width:100%}
  .cta-flex{flex-direction:column}
  .aside-cta{padding:22px}
}

/* 提交回执：接收时间行（2026-10-13） */
.s-time{margin:14px 0 0;font-size:13px;color:#5F7398;text-align:center;letter-spacing:.3px}
.s-time b{color:#0E62C7;font-weight:600}