:root{
  --ink:#162033;
  --muted:#6c778a;
  --line:#e3e8f0;
  --card:#ffffff;
  --bg:#f4f7fb;
  --blue:#2f6feb;
  --green:#10a37f;
  --orange:#f97316;
  --red:#e5484d;
  --shadow:0 12px 32px rgba(20,36,70,.10);
}
*{box-sizing:border-box}
html{background:#dfe7f3}
body{margin:0;min-height:100vh;background:linear-gradient(180deg,#edf4ff 0%,#f7f9fc 38%,#eef4f7 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif}
button,input{font:inherit}
.top-watermark{position:fixed;left:50%;top:270px;width:min(62vw,230px);transform:translateX(-50%);opacity:.12;z-index:20;pointer-events:none;user-select:none}
.app-shell{position:relative;z-index:5;width:100%;max-width:430px;min-height:100vh;margin:0 auto;padding:12px 12px 32px}
.brand,.hero,.tools,.map-card,.city-panel,.school-panel{border:1px solid rgba(219,226,237,.94);background:rgba(255,255,255,.92);box-shadow:var(--shadow);border-radius:8px}
.brand{display:flex;align-items:center;gap:10px;padding:11px 13px;position:relative;z-index:30}
.brand-mark{width:42px;height:42px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;border:1px solid #edf1f6}
.brand-mark img{width:100%;height:100%;object-fit:contain}
.brand-title{font-size:16px;font-weight:900;line-height:1.2}
.brand-sub{font-size:11px;color:var(--muted);margin-top:4px;font-weight:700}
.hero{margin-top:12px;padding:18px 16px 14px;overflow:hidden;background:linear-gradient(135deg,rgba(255,255,255,.96),rgba(239,248,255,.94))}
.hero-copy h1{margin:0;font-size:28px;line-height:1.08;letter-spacing:0;font-weight:900}
.hero-copy p{margin:10px 0 0;color:#536073;font-size:13px;line-height:1.65}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}
.hero-stats span{min-width:0;background:#f6f8fc;border:1px solid #e8edf5;border-radius:8px;padding:10px;color:#667287;font-size:11px;font-weight:800}
.hero-stats b{display:block;font-size:18px;color:var(--ink);line-height:1.1;margin-bottom:3px}
.tools{margin-top:10px;padding:11px}
.search-box{height:42px;border-radius:8px;background:#f1f5fa;border:1px solid #e5ebf4;display:flex;align-items:center;padding-left:12px}
.search-box input{border:0;background:transparent;outline:none;min-width:0;flex:1;color:var(--ink);font-size:13px}
.search-box button{width:36px;height:36px;border:0;background:transparent;color:#9aa5b5;font-size:22px;cursor:pointer}
.segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-top:9px;padding:4px;border-radius:8px;background:#edf2f8}
.segmented button{height:32px;border:0;border-radius:7px;background:transparent;color:#647287;font-size:13px;font-weight:800;cursor:pointer}
.segmented button.on{background:#fff;color:var(--blue);box-shadow:0 5px 14px rgba(47,111,235,.12)}
.map-card,.city-panel,.school-panel{margin-top:10px;padding:13px}
.map-head,.section-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.map-head h2,.section-head h2{margin:0;font-size:17px;font-weight:900;letter-spacing:0}
.map-head p{margin:4px 0 0;color:var(--muted);font-size:12px;font-weight:700}
#resetCity{height:30px;border:1px solid #d8e1ee;background:#fff;color:var(--blue);border-radius:8px;padding:0 10px;font-size:12px;font-weight:800;cursor:pointer}
.map-canvas{position:relative;height:280px;margin-top:8px;border-radius:8px;overflow:hidden;background:#fff}
.echart-map{position:absolute;inset:0;width:100%;height:100%}
.section-head span{font-size:12px;color:var(--muted);font-weight:800}
.city-chips{display:flex;flex-wrap:wrap;gap:7px;overflow:visible;padding:10px 0 1px}
.city-chip{height:29px;border:1px solid #e0e7f1;background:#f3f6fa;color:#536073;border-radius:8px;padding:0 11px;font-size:12px;font-weight:800;white-space:nowrap;cursor:pointer}
.city-chip.on{background:var(--blue);border-color:var(--blue);color:#fff}
.school-list{display:grid;gap:9px;margin-top:10px}
.school-card{display:flex;gap:11px;align-items:center;width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;padding:11px;text-align:left;cursor:pointer;box-shadow:0 6px 18px rgba(20,36,70,.05)}
.school-logo{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #edf1f6;overflow:hidden;flex:0 0 auto}
.school-logo img{width:45px;height:45px;object-fit:contain}
.school-main{min-width:0;flex:1}
.school-name{display:flex;align-items:center;gap:6px;font-size:15px;font-weight:900;line-height:1.2}
.school-name span:first-child{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{height:19px;line-height:19px;padding:0 6px;border-radius:6px;font-size:10px;font-weight:900;white-space:nowrap;background:#fff1e8;color:#d85c10}
.badge.public{background:#e8f8f2;color:#088662}
.school-meta{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px;color:#7b8798;font-size:11px;font-weight:700}
.school-score{margin-top:7px;color:#9aa5b5;font-size:11px;font-weight:800}
.school-score b{color:var(--blue);font-size:14px;margin-left:3px}
.loading,.empty{padding:28px 10px;text-align:center;color:#8b96a8;font-size:13px}
.modal{position:fixed;inset:0;z-index:80;display:none}
.modal.show{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(13,21,36,.54);backdrop-filter:blur(3px)}
.modal-card{position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:min(430px,100vw);max-height:88vh;overflow:auto;background:#fff;border-radius:16px 16px 0 0;box-shadow:0 -18px 48px rgba(0,0,0,.22)}
.modal-close{position:sticky;top:10px;float:right;margin:10px 10px 0 0;width:34px;height:34px;border:0;border-radius:50%;background:#f0f3f8;color:#647287;font-size:22px;z-index:2;cursor:pointer}
.modal-body{padding:20px 14px 24px;clear:both}
.detail-head{display:flex;gap:12px;align-items:center}
.detail-head .school-logo{width:66px;height:66px}
.detail-title{font-size:21px;font-weight:900;line-height:1.25}
.detail-sub{display:flex;gap:7px;flex-wrap:wrap;margin-top:7px;color:#7b8798;font-size:12px;font-weight:800}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.kpi{border:1px solid #e8edf5;background:#f7f9fc;border-radius:8px;padding:9px 5px;text-align:center;min-width:0}
.kpi b{display:block;font-size:15px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.kpi span{display:block;margin-top:3px;font-size:10px;color:#7b8798;font-weight:800}
.info-section{margin-top:15px}
.info-section h3{margin:0 0 8px;font-size:15px;font-weight:900}
.info-section p{margin:0;color:#344054;font-size:13px;line-height:1.8;white-space:pre-wrap;text-align:justify}
.major-grid{display:grid;gap:7px}
.major-row{border:1px solid #edf1f6;border-radius:8px;padding:9px;background:#fbfcfe}
.major-top{font-size:13px;font-weight:900;line-height:1.35}
.major-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:7px}
.major-tags span{font-size:10px;font-weight:800;color:#516072;background:#eef4fb;border-radius:6px;padding:3px 6px}
@media (max-width:360px){
  .app-shell{padding-left:9px;padding-right:9px}
  .hero-copy h1{font-size:25px}
  .map-canvas{height:248px}
  .school-card{gap:9px;padding:10px}
  .kpis{gap:6px}
  .kpi b{font-size:13px}
}