:root{
  --brand:#1A56DB; --bg:#F4F6FA; --text:#1F2937; --sub:#6B7280;
  --line:#E5E7EB; --white:#fff; --radius:16px; --radius-sm:10px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans SC",system-ui,-apple-system,"Microsoft YaHei",sans-serif;
  background:#E5E7EB;color:var(--text)}
a{text-decoration:none;color:inherit}

.phone{max-width:430px;margin:0 auto;background:var(--bg);min-height:100vh;
  display:flex;flex-direction:column;position:relative}
.statusbar{height:44px;background:var(--brand);color:#fff;display:flex;
  align-items:center;justify-content:space-between;padding:0 18px;font-size:13px}
.screen{flex:1;padding:18px;overflow-y:auto;padding-bottom:84px}

/* 首页 */
.hero{background:linear-gradient(135deg,#1A56DB,#0F2C66);color:#fff;border-radius:var(--radius);
  padding:22px 20px;margin-bottom:18px}
.hero h2{font-size:19px;margin-bottom:6px}
.hero p{font-size:13px;opacity:.85}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tile{background:var(--white);border-radius:var(--radius);padding:16px;
  border:1px solid var(--line);text-align:center}
.tile .ic{width:40px;height:40px;border-radius:12px;background:#EFF4FF;color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 8px;font-size:20px}
.tile span{font-size:14px}

/* 通用卡片/列表 */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;margin-bottom:12px}
.card h3{font-size:15px;margin-bottom:6px}
.card p{font-size:13px;color:var(--sub);line-height:1.6}
.tag{display:inline-block;font-size:12px;color:var(--brand);background:#EFF4FF;
  padding:2px 10px;border-radius:999px;margin:8px 8px 0 0}

/* 表单 */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px}
.input,.select{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:0 12px;font:inherit;background:var(--white)}
textarea{width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:10px 12px;font:inherit;min-height:90px;resize:vertical}
select.brand{appearance:none}
.btn-primary{width:100%;height:48px;background:var(--brand);color:#fff;border:none;
  border-radius:24px;font-size:15px;font-weight:600;cursor:pointer;margin-top:8px}
.btn-ghost{width:100%;height:44px;background:var(--white);color:var(--brand);
  border:1px solid var(--brand);border-radius:24px;font-size:14px;cursor:pointer;margin-top:10px}

/* 底部标签栏 */
.tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:430px;
  height:64px;background:var(--white);border-top:1px solid var(--line);display:flex}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:11px;color:var(--sub);gap:3px}
.tab.active{color:var(--brand)}
.tab .ic{font-size:18px}

/* 序列号扫码 */
.input-scan-row{display:flex;align-items:center;gap:8px}
.input-scan-row .input{flex:1}
.scan-btn{flex:0 0 auto;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--white);display:flex;align-items:center;justify-content:center;cursor:pointer}
.scan-btn:active{background:#EFF4FF}
.scan-overlay{position:fixed;inset:0;background:rgba(15,44,102,.92);z-index:99;
  display:flex;align-items:center;justify-content:center;padding:24px}
.scan-box{width:100%;max-width:360px;background:var(--white);border-radius:var(--radius);overflow:hidden}
.scan-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;
  font-size:15px;font-weight:600;border-bottom:1px solid var(--line)}
.scan-close{border:none;background:none;font-size:18px;color:var(--sub);cursor:pointer;line-height:1}
.scan-viewport{position:relative;background:#000;aspect-ratio:4/3;overflow:hidden}
.scan-viewport video{width:100%;height:100%;object-fit:cover;display:block}
.scan-line{position:absolute;left:8%;right:8%;top:50%;height:2px;background:#1A56DB;
  box-shadow:0 0 8px #1A56DB;animation:scanMove 1.8s ease-in-out infinite}
@keyframes scanMove{0%,100%{transform:translateY(-90px)}50%{transform:translateY(90px)}}
.scan-tip{font-size:13px;color:var(--sub);text-align:center;padding:12px 16px 0}
.scan-manual{width:calc(100% - 32px);margin:10px 16px 16px;height:40px;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:0 12px;font:inherit}
.scan-tap-btn{display:block;width:calc(100% - 32px);margin:0 auto 12px;padding:10px;
  background:#1A56DB;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;
  cursor:pointer;text-align:center}
.scan-install-btn{display:block;width:calc(100% - 32px);margin:0 auto 8px;padding:12px;
  background:#F59E0B;color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;
  cursor:pointer;text-align:center;box-shadow:0 2px 8px rgba(245,158,11,0.35)}
.scan-install-btn:disabled{opacity:0.6;cursor:not-allowed}

/* ============ 照片上传 ============ */
.photo-uploader{margin-top:8px;margin-bottom:8px}
.photo-uploader-head{display:flex;align-items:baseline;gap:6px;margin-bottom:8px;
  font-size:14px;color:var(--text)}
.photo-uploader-sub{font-size:12px;color:var(--sub)}
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:8px}
.photo-item{position:relative;width:100%;aspect-ratio:1/1;border-radius:8px;overflow:hidden;
  background:#F4F6FA;border:1px solid var(--line)}
.photo-item img{width:100%;height:100%;object-fit:cover;display:block}
.photo-del{position:absolute;top:4px;right:4px;width:22px;height:22px;border:none;border-radius:50%;
  background:rgba(0,0,0,0.55);color:#fff;font-size:12px;line-height:22px;cursor:pointer;
  padding:0;display:flex;align-items:center;justify-content:center}
.photo-dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:24px 16px;border:2px dashed #1A56DB;border-radius:12px;background:#F8FAFF;
  color:#1A56DB;cursor:pointer;transition:background .15s}
.photo-dropzone:active{background:#EEF4FF}
.photo-drop-text{margin-top:10px;font-size:14px;font-weight:600;color:#1A56DB}
.photo-drop-sub{margin-top:4px;font-size:12px;color:var(--sub)}

/* ============ 地址三级联动 ============ */
.address-block .address-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:0}
.address-block select.input{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' stroke='%236B7280' stroke-width='1.6' fill='none' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat:no-repeat;background-position:right 10px center;background-size:12px;
  padding-right:28px}