:root{
  --brand:#1f5fa8; --brand2:#2f8fd6; --accent:#e7a13b; --accent2:#f0c26f;
  --bg:#f4f6fa; --card:#fff; --line:#e3e8f0; --txt:#1f2733; --sub:#6b7686;
  --green:#2e9e6b; --red:#d05a4e; --gold:#d9a441;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--txt);font-family:"Microsoft YaHei","PingFang SC",-apple-system,sans-serif;line-height:1.65;}

/* ===== 顶部导航 ===== */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.nav .brand{display:flex;align-items:center;gap:6px;padding:0 16px;font-weight:800;font-size:16px;color:var(--brand);white-space:nowrap;}
.nav .brand .dot{width:8px;height:8px;border-radius:50%;background:linear-gradient(var(--brand),var(--brand2));}
.nav .links{display:flex;overflow-x:auto;scrollbar-width:none;}
.nav .links::-webkit-scrollbar{display:none;}
.nav a{display:block;padding:14px 14px;font-size:14px;color:#4a5568;text-decoration:none;white-space:nowrap;font-weight:600;}
.nav a.on{color:var(--brand);box-shadow:inset 0 -2px 0 var(--brand2);}

/* ===== 顶部横幅（邀请函式） ===== */
.hero{position:relative;background:linear-gradient(135deg,#173f74 0%,var(--brand) 45%,var(--brand2) 100%);color:#fff;padding:34px 22px 30px;text-align:center;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 18% 20%,rgba(255,255,255,.12),transparent 42%),
  radial-gradient(circle at 82% 8%,rgba(240,194,111,.22),transparent 40%),
  radial-gradient(circle at 70% 90%,rgba(255,255,255,.10),transparent 45%);}
.hero .k{position:relative;display:inline-block;font-size:12px;letter-spacing:3px;background:rgba(255,255,255,.16);padding:4px 14px;border-radius:20px;margin-bottom:14px;}
.hero h1{position:relative;font-size:28px;font-weight:800;line-height:1.35;margin-bottom:10px;letter-spacing:1px;}
.hero h1 b{color:var(--accent2);}
.hero .sub{position:relative;font-size:14px;opacity:.94;margin-bottom:4px;line-height:1.8;}
.hero .time{position:relative;display:inline-block;margin-top:12px;font-size:14px;font-weight:700;background:linear-gradient(90deg,var(--accent),#f4c66a);color:#5a3d0a;padding:8px 18px;border-radius:26px;}
.hero .pill-row{position:relative;margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;}
.pill{font-size:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:4px 12px;border-radius:18px;}

.wrap{max-width:1000px;margin:0 auto;padding:0 0 40px;}

/* ===== 通用小节 ===== */
.sec{padding:24px 16px 4px;}
.sec-title{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:16px;}
.sec-title::before{content:"";width:5px;height:20px;border-radius:3px;background:linear-gradient(var(--brand),var(--brand2));}
.page-title{text-align:center;padding:26px 16px 2px;font-size:20px;font-weight:800;color:var(--brand);}

/* ===== 育人理念 ===== */
.edu{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;}
.edu .item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 12px;text-align:center;}
.edu .item .ic{font-size:30px;}
.edu .item h4{font-size:15px;margin:8px 0 4px;color:var(--brand);}
.edu .item p{font-size:12px;color:var(--sub);line-height:1.5;}

/* ===== 亮点 ===== */
.hl{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.hl .box{position:relative;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 14px;overflow:hidden;}
.hl .box.gift{background:linear-gradient(135deg,#fff7e8,#fff);border-color:#f2ddb0;}
.hl .box.hotel{background:linear-gradient(135deg,#eaf5ff,#fff);border-color:#cfe4f7;}
.hl .box .ic{font-size:28px;}
.hl .box h4{font-size:16px;margin:6px 0 4px;}
.hl .box p{font-size:13px;color:var(--sub);}
.hl .box .tag{position:absolute;top:12px;right:12px;font-size:11px;font-weight:700;color:#fff;background:var(--accent);padding:2px 9px;border-radius:12px;}

/* ===== CTA 按钮 ===== */
.cta{display:block;text-align:center;margin:16px auto 0;max-width:360px;padding:14px;border-radius:12px;font-size:16px;font-weight:800;color:#fff;background:linear-gradient(90deg,var(--brand),var(--brand2));text-decoration:none;letter-spacing:1px;box-shadow:0 6px 16px rgba(31,95,168,.28);}
.cta:active{transform:translateY(1px);}

/* ===== 一图看懂 ===== */
.onechart{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 14px;}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--sub);margin-bottom:14px;}
.legend span{display:inline-flex;align-items:center;gap:5px;}
.dot{width:11px;height:11px;border-radius:3px;display:inline-block;}
.tl{position:relative;padding-left:26px;}
.tl::before{content:"";position:absolute;left:9px;top:4px;bottom:4px;width:2px;background:linear-gradient(var(--brand2),var(--brand),var(--gold));}
.tl .phase{margin-bottom:18px;}
.tl .phase h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:#fff;background:var(--brand);border-radius:8px;padding:6px 12px;margin-bottom:10px;}
.tl .phase h3.gold{background:var(--gold);}
.tl .it{position:relative;margin-bottom:8px;background:#f8fafd;border:1px solid var(--line);border-radius:10px;padding:9px 12px;}
.tl .it::before{content:"";position:absolute;left:-21px;top:14px;width:10px;height:10px;border-radius:50%;background:var(--brand2);border:2px solid #fff;box-shadow:0 0 0 2px var(--brand2);}
.tl .it.gold::before{background:var(--accent);box-shadow:0 0 0 2px var(--accent);}
.tl .it .t{font-size:13px;font-weight:800;color:var(--brand);margin-right:6px;}
.tl .it.gold .t{color:var(--accent);}
.tl .it .d{font-size:13px;color:var(--txt);}
.tl .it .m{font-size:11px;color:var(--sub);margin-top:2px;}

/* ===== 报名表单 ===== */
.form-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 16px;}
.frow{margin-bottom:14px;}
.frow label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:#34404f;}
.frow label .req{color:var(--red);}
input[type=text],input[type=tel],input[type=number],input[type=date],select,textarea{
  width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;
  font-family:inherit;background:#fbfcfe;color:var(--txt);outline:none;transition:.15s;}
input:focus,select:focus,textarea:focus{border-color:var(--brand2);background:#fff;box-shadow:0 0 0 3px rgba(47,143,214,.12);}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.chk{display:flex;align-items:center;gap:8px;font-size:14px;cursor:pointer;}
.chk input{width:18px;height:18px;accent-color:var(--brand);}
.hidden{display:none;}
.hint{font-size:12px;color:var(--sub);margin-top:4px;}
.submit-btn{width:100%;padding:14px;border:none;border-radius:12px;font-size:17px;font-weight:800;color:#fff;background:linear-gradient(90deg,var(--brand),var(--brand2));cursor:pointer;letter-spacing:2px;box-shadow:0 6px 16px rgba(31,95,168,.28);}
.submit-btn:active{transform:translateY(1px);}
.agree{font-size:12px;color:var(--sub);text-align:center;margin-top:10px;}

/* ===== 数据看板 ===== */
.note{background:#fff8ec;border:1px solid #f2ddb0;color:#8a6d2f;border-radius:8px;padding:8px 14px;font-size:12px;margin-bottom:14px;}
.kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-bottom:16px;}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 10px;text-align:center;}
.kpi .v{font-size:28px;font-weight:800;color:var(--brand);line-height:1.1;}
.kpi .l{font-size:12px;color:var(--sub);margin-top:6px;}
.kpi.green .v{color:var(--green);}.kpi.red .v{color:var(--red);}.kpi.accent .v{color:var(--accent);}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;}
.card h3{font-size:15px;font-weight:700;margin-bottom:4px;}
.card .sub{font-size:12px;color:var(--sub);margin-bottom:10px;}
.chart{width:100%;height:300px;}
.full{grid-column:1 / -1;}
.dash-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px;}
.dash-actions button{display:inline-block;padding:9px 16px;border-radius:8px;background:var(--card);border:1px solid var(--line);color:var(--brand);font-size:13px;font-weight:700;cursor:pointer;}
.dash-actions button:hover{border-color:var(--brand2);}

/* ===== 弹窗 & Toast ===== */
.toast{position:fixed;left:50%;bottom:70px;transform:translateX(-50%);background:rgba(31,39,51,.92);color:#fff;padding:10px 20px;border-radius:24px;font-size:14px;z-index:99;opacity:0;transition:.3s;pointer-events:none;}
.mask{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:100;display:none;align-items:center;justify-content:center;padding:20px;}
.mask.show{display:flex;}
.modal{background:#fff;border-radius:14px;padding:22px;width:320px;max-width:100%;}
.modal h4{font-size:16px;margin-bottom:6px;}
.modal p{font-size:12px;color:var(--sub);margin-bottom:12px;}
.modal input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:15px;margin-bottom:12px;}
.modal .row{display:flex;gap:10px;}
.modal .row button{flex:1;padding:10px;border-radius:10px;border:none;font-size:14px;font-weight:700;cursor:pointer;}
.modal .row .cancel{background:#eef1f5;color:#4a5568;}
.modal .row .ok{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;}

footer{padding:24px 16px 0;text-align:center;font-size:12px;color:var(--sub);line-height:1.9;}
@media(max-width:900px){.kpis{grid-template-columns:repeat(3,1fr);}.grid{grid-template-columns:1fr;}}
@media(max-width:520px){.edu{grid-template-columns:1fr;}.hl{grid-template-columns:1fr;}.grid2{grid-template-columns:1fr;}.kpi .v{font-size:22px;}}