:root{
  --primary:#1E3A8A; --primary-d:#0B3DC2; --primary-l:#3B82F6;
  --ink:#1f2937; --muted:#5a6472; --bg:#F8FAFF; --card:#fff;
  --line:#E2E8F0; --radius:22px; --shadow:0 10px 30px rgba(30,58,138,.10);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB","微软雅黑",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;padding-top:86px}
a{text-decoration:none;color:inherit}

/* ===== 注册页容器 ===== */
.reg-wrap{max-width:680px;margin:0 auto;padding:46px 20px 64px}
.reg-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);padding:36px}
.reg-head{text-align:center;margin-bottom:22px}
.reg-head .reg-emoji{font-size:46px;line-height:1}
.reg-head h2{font-size:25px;font-weight:900;margin:10px 0 4px;color:#111827}
.reg-head p{color:var(--muted);font-size:14px}

/* ===== 表单区块 ===== */
.reg-sec{font-size:15px;font-weight:800;color:var(--primary);margin:28px 0 12px;padding-left:12px;border-left:4px solid var(--primary-l)}
.reg-sec:first-of-type{margin-top:6px}
.reg-group{margin-bottom:16px}
.reg-label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.reg-label .req{color:#E53935;margin-left:3px}
.reg-sub{font-size:12px;color:var(--muted);margin:-3px 0 7px}

.reg-input{width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:12px;font-family:inherit;font-size:15px;color:var(--ink);background:#FAFBFF;outline:none;transition:.2s}
.reg-input:focus{border-color:var(--primary-l);background:#fff}
.reg-input[readonly]{background:#eef2f7;color:#475569;cursor:not-allowed}
.reg-textarea{resize:vertical;min-height:96px}

/* ===== 多选 chips ===== */
.reg-chips{display:flex;flex-wrap:wrap;gap:9px}
.reg-chip{padding:8px 14px;border:1.5px solid var(--line);border-radius:999px;font-size:13.5px;cursor:pointer;background:#FAFBFF;color:var(--ink);user-select:none;transition:.18s;display:inline-flex;align-items:center;gap:6px}
.reg-chip:hover{border-color:var(--primary-l);color:var(--primary)}
.reg-chip.selected{background:var(--primary);color:#fff;border-color:var(--primary)}
.reg-chip.selected::before{content:'✓';font-size:12px}

/* ===== 自定义添加 ===== */
.reg-custom-row{display:flex;gap:8px;margin-top:10px}
.reg-custom-input{flex:1}
.reg-custom-add{padding:0 18px;border:none;border-radius:999px;background:var(--primary);color:#fff;font-weight:600;cursor:pointer;font-size:14px;white-space:nowrap;transition:.2s}
.reg-custom-add:hover{background:var(--primary-d)}
.reg-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.reg-tag{display:inline-flex;align-items:center;gap:6px;background:#EFF6FF;color:var(--primary);font-size:13px;padding:6px 12px;border-radius:999px}
.reg-tag .x{cursor:pointer;font-weight:700;color:#1E3A8A}

/* ===== 提交与消息 ===== */
.reg-submit{display:block;width:100%;padding:16px;border:none;border-radius:999px;background:var(--primary);color:#fff;font-size:17px;font-weight:700;cursor:pointer;transition:.2s;margin-top:26px}
.reg-submit:hover{background:var(--primary-d);transform:translateY(-2px);box-shadow:0 6px 18px rgba(30,58,138,.35)}
.reg-msg{text-align:center;margin-top:16px;padding:12px;border-radius:12px;font-size:14px;font-weight:500;display:none}
.reg-msg.success{display:block;background:#E8F5E9;color:#2E7D32}
.reg-msg.error{display:block;background:#FFEBEE;color:#C62828}
.reg-foot{text-align:center;color:var(--muted);font-size:13px;margin-top:18px;line-height:1.8;padding:0 4px}

/* ===== 级联地区选择（省/市/区） ===== */
.reg-area-sels{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.reg-area-sel{flex:1;min-width:110px}
.reg-area-add{padding:0 18px;height:46px;border:none;border-radius:999px;background:var(--primary-l);color:#fff;font-weight:600;cursor:pointer;font-size:14px;white-space:nowrap;transition:.2s}
.reg-area-add:hover{background:var(--primary)}
.reg-area .reg-tags{margin-top:12px}

/* ===== 页脚（与站点一致） ===== */
.footer{background:#0F2440;color:#fff;padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:30px}
.footer-logo{font-family:'STXingkai','华文行楷','Xingkai SC',cursive!important;font-size:28px;margin-bottom:8px}
.footer p{color:#94a3b8;font-size:14px;line-height:1.8}
.footer h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:8px}
.footer-links a{color:#94a3b8;font-size:14px;transition:.2s}
.footer-links a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;text-align:center;color:#64748b;font-size:13px}
.footer-wx{display:flex;align-items:center;gap:12px;margin-top:12px}

@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .reg-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
}

/* ===== 文件上传 / 协议勾选（2026-08-10 新增注册字段） ===== */
.reg-file-row{display:flex;gap:10px;align-items:stretch}
.reg-file-row .reg-input{flex:1}
.reg-file-btn{flex:0 0 auto;padding:0 18px;background:#1E3A8A;color:#fff;border:none;border-radius:10px;font-size:14px;cursor:pointer;white-space:nowrap}
.reg-file-btn:hover{background:#16306f}
.reg-file-name{display:block;margin-top:6px;font-size:13px;color:#16a34a}
.reg-agree{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:#475569;line-height:1.6;margin-top:4px;cursor:pointer}
.reg-agree input{margin-top:3px;width:16px;height:16px;flex:0 0 auto;cursor:pointer}

/* ===== 2026-08-18：系统头像 picker + 当前头像 + 折叠面板（64 张真实人物 webp） ===== */
.reg-avatar-row{display:flex;align-items:center;flex-wrap:wrap;gap:14px}
.reg-avatar-sys-btn{padding:9px 20px;background:linear-gradient(135deg,#3B82F6,#1E3A8A);color:#fff;border:none;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px rgba(30,58,138,.18)}
.reg-avatar-sys-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(30,58,138,.26)}
.reg-avatar-panel{margin-top:14px;padding:14px;background:#F8FAFF;border:1px solid #DBEAFE;border-radius:14px}
.reg-avatar-panel-title{font-size:13px;color:#475569;font-weight:600;margin-bottom:10px}
.reg-avatar-picker{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;max-height:320px;overflow-y:auto;padding:4px}
.reg-avatar-opt{aspect-ratio:1/1;border-radius:50%;border:2px solid #E2E8F0;background:#F8FAFC;cursor:pointer;overflow:hidden;transition:all .15s;position:relative}
.reg-avatar-opt img{width:100%;height:100%;object-fit:cover;display:block}
.reg-avatar-opt:hover{border-color:#3B82F6;transform:scale(1.06);box-shadow:0 4px 12px rgba(59,130,246,.25)}
.reg-avatar-opt.selected{border-color:#1E3A8A;border-width:3px;background:#EFF6FF;box-shadow:0 0 0 2px rgba(30,58,138,.15)}
.reg-avatar-current .reg-avatar-btn{position:relative;background:#fff}
@media (max-width:640px){
  .reg-avatar-picker{grid-template-columns:repeat(5,1fr)}
}