:root{
  /* 蓝色主视觉(全站统一, 对标房源库) */
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#eff6ff; --blue-dd:#1e3a8a;
  --ink:#1e293b; --sub:#64748b; --line:#e2e8f0; --bg:#f5f8fd;
  --ok:#16a34a; --warn:#dc2626; --chip:#dbeafe;
  --radius:14px; --shadow:0 1px 3px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
  /* 业务语义色板(预测段位/通知状态, 不可改) */
  --seg-likely-bg:#e6f7ec; --seg-likely-fg:#1a7f43; --seg-likely-bd:#9fd9b6;
  --seg-alt-bg:#fff4e0; --seg-alt-fg:#9a6b00; --seg-alt-bd:#f0cf8a;
  --seg-unlikely-bg:#fdeaea; --seg-unlikely-fg:#b3261e; --seg-unlikely-bd:#f0a9a3;
}
*{box-sizing:border-box;}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;}
a{color:var(--blue-d);text-decoration:none;}
a:hover{text-decoration:underline;}

/* ===== 顶部导航(蓝渐变, 全站统一) ===== */
.topbar{background:linear-gradient(135deg,var(--blue),var(--blue-d));color:#fff;
  padding:0 24px;height:64px;display:flex;align-items:center;gap:8px;position:sticky;top:0;z-index:10;
  box-shadow:0 4px 20px rgba(37,99,235,.28);}
.topbar .brand{font-weight:700;font-size:18px;display:flex;align-items:center;gap:8px;}
.topbar .brand .logo{font-size:22px;line-height:1;}
.topbar a{color:#fff;opacity:.92;font-size:14px;padding:6px 12px;border-radius:8px;margin-left:8px;}
.topbar a:hover{background:rgba(255,255,255,.15);text-decoration:none;}

/* ===== 布局容器 ===== */
.wrap{max-width:760px;margin:28px auto;padding:0 20px;}
.wrap-wide{max-width:1040px;margin:28px auto;padding:0 20px;}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;margin-bottom:18px;box-shadow:var(--shadow);}
.card h3{margin:0 0 16px;font-size:17px;color:var(--ink);}
.card h4{margin:18px 0 8px;color:#1e3a5f;font-size:15px;}

.field{margin:14px 0;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--sub);margin-bottom:6px;}
.input,input,select,textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-size:14.5px;background:#fff;color:var(--ink);transition:.15s;font-family:inherit;}
.input:focus,input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.12);}

.btn{display:inline-flex;align-items:center;gap:6px;border:none;border-radius:10px;
  padding:11px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:.15s;color:#fff;background:var(--blue);}
.btn:hover{background:var(--blue-d);transform:translateY(-1px);text-decoration:none;}
.btn-sm{display:inline-block;padding:4px 12px;border:1px solid #bfdbfe;background:var(--blue-l);color:var(--blue-d);
  border-radius:8px;font-size:12.5px;font-weight:600;cursor:pointer;margin:0 3px;text-decoration:none;transition:.15s;}
.btn-sm:hover{background:#dbeafe;text-decoration:none;}
.btn-sm.warn{border-color:var(--seg-alt-bd);background:var(--seg-alt-bg);color:var(--seg-alt-fg);}
.btn-sm.danger{border-color:var(--seg-unlikely-bd);background:var(--seg-unlikely-bg);color:var(--seg-unlikely-fg);}

.result{background:var(--blue-l);border-left:4px solid var(--blue);border-radius:10px;
  padding:18px 20px;white-space:pre-wrap;line-height:1.85;font-size:15.5px;color:#1e40af;}
.result.err{background:#fef2f2;border-color:var(--warn);color:#b91c1c;}

.meta{color:var(--sub);font-size:13px;margin-top:10px;}
.sub{color:var(--sub);font-size:14px;line-height:1.6;}
.notice{background:#fffbeb;border:1px solid #fde68a;color:#92400e;border-radius:10px;padding:12px 16px;font-size:13.5px;}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:640px){.grid2{grid-template-columns:1fr;}.wrap,.wrap-wide{padding:0 14px;}}

/* ===== 表格 ===== */
table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
th,td{padding:13px 16px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
th{background:var(--blue-l);font-weight:600;color:var(--blue-d);font-size:13px;text-transform:uppercase;letter-spacing:.3px;}
tr:last-child td{border-bottom:none;}
tbody tr:hover{background:#f8fafc;}
.badge{display:inline-block;background:var(--chip);color:var(--blue-d);font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;}
.badge.on{background:var(--blue-l);border:1px solid #bfdbfe;}
.badge.off{background:#f1f5f9;color:var(--sub);border:1px solid var(--line);}
.badge-num{display:inline-block;background:var(--warn);color:#fff;font-size:11px;font-weight:700;border-radius:999px;min-width:18px;height:18px;line-height:18px;text-align:center;padding:0 5px;}

/* ===== 页脚(深蓝, 与后台一致) ===== */
.footer{margin-top:40px;background:#0f172a;color:#94a3b8;padding:28px 24px;text-align:center;font-size:13px;line-height:1.7;}
.footer .links{margin-bottom:10px;}
.footer .links a{color:#cbd5e1;margin:0 10px;font-size:13px;}
.footer .links a:hover{color:#fff;}
.footer .copy{color:#64748b;}
.footer .disc{color:#475569;font-size:12px;margin-top:6px;}

body{display:flex;flex-direction:column;min-height:100vh;}
.topbar{flex:none;}
.wrap,.wrap-wide{flex:1 0 auto;}

/* ===== 首页 Hero(蓝色大气) ===== */
.hero{background:linear-gradient(135deg,var(--blue),var(--blue-d) 60%,var(--blue-dd));
  border-radius:20px;padding:46px 40px;margin-bottom:22px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 12px 40px rgba(37,99,235,.28);}
.hero::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.10);box-shadow:0 0 0 60px rgba(255,255,255,.04);}
.hero.mini{padding:28px 32px;margin-bottom:18px;border-radius:16px;}
.hero-badge{display:inline-block;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.30);
  padding:4px 14px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;}
.hero h1{margin:0 0 10px;font-size:30px;font-weight:800;letter-spacing:.5px;}
.hero.mini h1{font-size:24px;}
.hero-sub{margin:0 0 22px;font-size:15.5px;color:rgba(255,255,255,.86);max-width:600px;line-height:1.7;}
.hero .stat-row{display:flex;gap:14px;margin-top:16px;flex-wrap:wrap;}
.hero .stat{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:14px 22px;text-align:center;min-width:120px;}
.hero .stat-num{font-size:28px;font-weight:800;color:#fff;}
.hero .stat-label{font-size:13px;color:rgba(255,255,255,.82);}
.hero-cta{display:inline-flex;align-items:center;gap:8px;margin-top:24px;background:#fff;color:var(--blue-d);
  font-weight:700;font-size:15.5px;padding:13px 26px;border-radius:12px;text-decoration:none;
  box-shadow:0 6px 18px rgba(0,0,0,.18);transition:.15s;}
.hero-cta:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.24);text-decoration:none;}

/* ===== 功能入口卡片(蓝描边 + 层次) ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
@media(max-width:640px){.entry-grid{grid-template-columns:1fr;}}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
@media(max-width:720px){.card-grid{grid-template-columns:1fr;}}
.entry{display:block;text-decoration:none;color:#1e3a5f;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;transition:.15s;box-shadow:var(--shadow);}
.entry:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 8px 22px rgba(37,99,235,.16);text-decoration:none;}
.entry-ico{font-size:30px;}
.entry-t{font-weight:700;margin:8px 0 4px;}
.entry-d{font-size:13px;color:var(--sub);line-height:1.5;}
.entry.admin{border-color:#cfe0f0;background:#f5f9ff;}
.entry.admin .entry-ico{filter:none;}

/* ===== 房源库下钻 ===== */
.crumb{font-size:13px;color:var(--sub);margin-bottom:14px;}
.crumb a{color:var(--blue);text-decoration:none;}
.crumb b{color:#1e3a5f;}
.yr-row{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 18px;}
.yr-chip{display:inline-block;padding:8px 16px;background:var(--blue-l);border:1px solid #bfdbfe;border-radius:10px;color:var(--blue-d);text-decoration:none;font-weight:600;}
.yr-chip:hover{background:#dbeafe;}
h4{margin:18px 0 8px;color:#1e3a5f;font-size:15px;}

/* ===== 资讯 ===== */
.news-list{list-style:none;padding:0;margin:0;}
.news-list li{padding:16px 0;border-bottom:1px solid var(--line);}
.news-title{font-weight:600;font-size:16px;color:#1e3a5f;}
.news-sum{font-size:13px;color:var(--sub);margin:6px 0;line-height:1.5;}
.news-meta{margin-top:4px;}
.news-meta .badge{background:var(--chip);color:var(--blue-d);border:1px solid #bfdbfe;}
.prose{white-space:pre-wrap;line-height:1.85;font-size:15.5px;color:#334155;}

/* ===== 个人中心 ===== */
.nav{display:flex;align-items:center;gap:14px;font-size:14px;}
.nav a{color:inherit;text-decoration:none;opacity:.9;}
.nav a:hover{opacity:1;text-decoration:underline;}
.nav a.active{opacity:1;color:#fff;font-weight:600;position:relative;}
.nav a.active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background:#fff;border-radius:1px;}
.nav .user{font-weight:600;}
.nav-left{display:flex;align-items:center;gap:18px;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
.me-head{display:flex;align-items:center;gap:16px;margin-bottom:14px;}
.avatar{width:56px;height:56px;border-radius:50%;background:var(--blue-l);border:2px solid #bfdbfe;object-fit:cover;}
.avatar-empty{display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--blue-d);}
.me-name{font-weight:700;color:#1e3a5f;font-size:16px;}
.me-sub{font-size:13px;color:var(--sub);}
.profile-form{margin-top:12px;border-top:1px solid var(--line);padding-top:12px;}
.profile-form .field{display:flex;flex-direction:column;gap:4px;margin-bottom:10px;font-size:13px;color:var(--sub);}
.profile-form .input{max-width:280px;}
.pay-entry{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:5px 12px;font-size:13px;font-weight:600;}
.phone-box{margin-top:12px;}
.phone-form{display:flex;gap:8px;align-items:flex-end;flex-wrap:wrap;}
.phone-form .input{max-width:240px;}

/* ===== 订阅 / 历史 / 收藏 ===== */
.reg-switch{display:flex;align-items:center;gap:14px;margin-bottom:14px;font-size:14px;}
.reg-switch .on{color:var(--ok);}.reg-switch .off{color:var(--warn);}
.tbl{width:100%;border-collapse:collapse;font-size:13px;}
.tbl th,.tbl td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;}
.tbl th{background:var(--blue-l);color:var(--blue-d);font-weight:600;}
.tbl .ops form{display:inline;}
.hist-list,.fav-list{list-style:none;padding:0;margin:0;}
.hist-list li,.fav-list li{padding:12px 0;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.hist-kind{text-transform:uppercase;font-size:12px;color:var(--sub);}
.hist-time{font-size:12px;color:var(--sub);}
.hist-sum{flex:1 100%;font-size:13px;color:#1e3a5f;margin-top:4px;}
.fav-kind{text-transform:uppercase;font-size:12px;color:var(--sub);}
.fav-ref{font-weight:600;color:#1e3a5f;}
.fav-note{font-size:12px;color:var(--sub);}
.fav-btn{border:none;background:none;font-size:18px;cursor:pointer;color:#cbd5e1;line-height:1;padding:0 4px;}
.fav-btn.on{color:#f0a500;}

/* ===== 空状态占位(无数据时撑起样式) ===== */
.empty{text-align:center;padding:40px 20px;color:var(--sub);}
.empty .ico{width:64px;height:64px;border-radius:50%;background:var(--blue-l);border:1px solid #bfdbfe;display:flex;align-items:center;justify-content:center;font-size:30px;margin:0 auto 14px;}
.empty .t{font-size:15px;font-weight:600;color:#1e3a5f;margin-bottom:6px;}
.empty .d{font-size:13px;line-height:1.6;max-width:420px;margin:0 auto;}
.chan-pick{display:flex;flex-wrap:wrap;gap:14px;margin-top:12px;padding-top:10px;border-top:1px solid var(--line);}
.chan{display:inline-flex;align-items:center;gap:5px;font-size:13.5px;color:#1e3a5f;white-space:nowrap;}
.chan-lock{font-size:11px;color:#f59e0b;font-weight:600;}

/* ===== 预测结果可视化(业务语义色板: 能排上=绿/可能=黄/难=红) ===== */
.pred-grid{display:flex;flex-wrap:wrap;gap:12px;margin:14px 0 6px;}
.pred-cell{background:#f5f8fd;border:1px solid var(--line);border-radius:12px;padding:12px 16px;min-width:150px;flex:1;}
.pred-label{font-size:12px;color:var(--sub);margin-bottom:6px;letter-spacing:.05em;}
.seg-badge,.ch-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:14px;font-weight:600;}
.seg-in,.ch-likely{background:var(--seg-likely-bg);color:var(--seg-likely-fg);border:1px solid var(--seg-likely-bd);}
.seg-alt,.ch-unknown{background:var(--seg-alt-bg);color:var(--seg-alt-fg);border:1px solid var(--seg-alt-bd);}
.seg-sup,.ch-unlikely{background:var(--seg-unlikely-bg);color:var(--seg-unlikely-fg);border:1px solid var(--seg-unlikely-bd);}
.seg-unknown{background:#eef1f4;color:#5a6b7b;border:1px solid #cdd6df;}
.band-val{font-size:16px;font-weight:700;color:var(--blue-d);margin-bottom:6px;}
.band-bar{height:8px;background:#e2e8f0;border-radius:6px;overflow:hidden;}
.band-bar span{display:block;height:100%;background:linear-gradient(90deg,#1d4ed8,#2563eb);border-radius:6px;}
.band-note{font-size:12px;color:var(--sub);margin-top:4px;}
.chance-note{background:var(--blue-l);border-left:3px solid var(--blue);padding:8px 12px;border-radius:6px;font-size:13px;color:#1e3a5f;margin:10px 0;}
.result-summary{white-space:pre-wrap;line-height:1.7;font-size:14px;color:#1e3a5f;margin-top:10px;background:#f5f8fd;border:1px solid var(--line);border-radius:10px;padding:14px;}

/* ===== 定价方案卡 ===== */
.plan-card{border:2px solid var(--line);border-radius:16px;padding:24px;background:#fff;transition:.15s;}
.plan-card.on{border-color:var(--blue);box-shadow:0 8px 24px rgba(37,99,235,.14);}
.plan-card .price{font-size:32px;font-weight:800;color:var(--blue-d);margin:10px 0;}
.plan-card .price span{font-size:14px;font-weight:500;color:var(--sub);}

/* ===== 鉴权页 ===== */
.auth-card{max-width:440px;margin:30px auto;}
.auth-switch{margin-top:14px;text-align:center;font-size:13px;color:var(--sub);}
.auth-switch a{color:var(--blue-d);font-weight:600;text-decoration:none;}
.login .card,.register .card{padding:32px;}
.login h2,.register h2{text-align:center;margin:0 0 4px;color:var(--blue-d);font-size:22px;}
.login .sub,.register .sub{text-align:center;color:var(--sub);font-size:13px;margin-bottom:20px;}

/* ===== 微信登录按钮(与登录按钮并排) ===== */
.btn-row{display:flex;gap:10px;margin-top:6px;}
.btn-row .btn{flex:1;justify-content:center;white-space:nowrap;min-width:0;}
.wx-login{margin-top:16px;text-align:center;}
.wx-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#07c160;color:#fff;border:none;border-radius:10px;padding:11px 14px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;flex:1;box-sizing:border-box;white-space:nowrap;min-width:0;}
.wx-btn.disabled{background:#cbd5e1;color:#64748b;cursor:not-allowed;}

/* ===== 表单网格(后台/设置类) ===== */
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
@media(max-width:720px){.form-grid{grid-template-columns:1fr;}}

/* ===== 大卡片(后台统计等) ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:8px;}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);}
.stat .n{font-size:30px;font-weight:800;color:var(--blue);line-height:1;}
.stat .t{color:var(--sub);font-size:13px;margin-top:6px;}

/* 订阅按钮(全局, 房源库/资讯等 sub_btn partial 用) */
.sub-btn{border:1px solid var(--blue);background:var(--blue-l);color:var(--blue-d);border-radius:8px;font-size:12px;padding:3px 10px;cursor:pointer;transition:.15s;white-space:nowrap;}
.sub-btn:hover{background:#dbeafe;}
.sub-btn.on{background:var(--blue);color:#fff;border-color:var(--blue);}
.sub-add{display:flex;gap:10px;flex-wrap:wrap;}
.sub-add select{width:auto;min-width:160px;}
.sub-add input{flex:1;min-width:200px;}
/* 维度块: 卡片+订阅按钮上下排列 */
.stat.link-wrap{display:flex;flex-direction:column;align-items:center;gap:6px;}
.stat.link{display:block;width:100%;text-decoration:none;transition:.15s;}
.stat.link:hover{background:linear-gradient(135deg,var(--blue),var(--blue-d));border-color:var(--blue-d);box-shadow:0 8px 22px rgba(37,99,235,.18);text-decoration:none;}
.stat.link:hover .n{color:#fff;}
.stat.link:hover .t{color:rgba(255,255,255,.88);}
.yr-chip:hover{background:var(--blue);color:#fff;border-color:var(--blue);text-decoration:none;}
.big-card-wrap{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:.15s;}
.big-card-wrap:hover{background:linear-gradient(135deg,var(--blue),var(--blue-d));border-color:var(--blue-d);transform:translateY(-2px);box-shadow:0 10px 26px rgba(37,99,235,.32);}
.big-card-wrap:hover .bc-t{color:#fff;}
.big-card-wrap:hover .big-card{text-decoration:none;}
.big-card-wrap:hover .bc-sub{color:rgba(255,255,255,.88);}
.big-card-wrap:hover .bc-num{color:#fff;}
.big-card-wrap:hover .bc-sub-btn{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.5);color:#fff;}
.big-card{display:block;text-decoration:none;color:inherit;}
.bc-t{font-weight:700;color:#1e3a5f;font-size:16px;margin-bottom:8px;}
.bc-sub{font-size:13px;color:var(--sub);margin-bottom:12px;}
.bc-num{font-size:26px;font-weight:800;color:var(--blue-d);}
.bc-sub-btn{margin-top:2px;}