:root{
  --navy:#0f2c47;
  --navy2:#16395c;
  --blue:#1a6fb5;
  --orange:#ff7a3d;
  --orange2:#ff9466;
  --ink:#1c2733;
  --muted:#5b6a7d;
  --bg:#f5f8fb;
  --card:#ffffff;
  --line:#e6edf3;
  --shadow:0 8px 24px rgba(15,44,71,.08);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
.container{max-width:1160px;margin:0 auto;padding:0 24px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:10px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:.2s;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px rgba(255,122,61,.3);}
.btn-primary:hover{background:var(--orange2);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--navy);border:1px solid var(--line);}
.btn-ghost:hover{background:#fff;}
.btn-sm{padding:8px 14px;font-size:13px;}
.btn-block{width:100%;}

/* Navbar */
.navbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);}
.brand-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;}
.brand-text{font-size:18px;} .brand-text em{font-style:normal;font-size:11px;color:var(--muted);display:block;font-weight:500;}
.nav-links{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--muted);}
.nav-links a:hover{color:var(--navy);}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;}
.nav-toggle span{width:22px;height:2px;background:var(--navy);border-radius:2px;}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#eef4fa 0%,#f7fafc 60%,#fff 100%);padding:56px 0 64px;}
.hero::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(26,111,181,.14),transparent 70%);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative;}
.badge{display:inline-block;background:#fff;color:var(--blue);border:1px solid #d7e6f2;padding:6px 14px;border-radius:30px;font-size:13px;font-weight:600;margin-bottom:18px;}
.hero h1{font-size:46px;line-height:1.18;font-weight:900;color:var(--navy);letter-spacing:-.5px;}
.hl{color:var(--orange);}
.lead{margin:20px 0 26px;font-size:16px;color:var(--muted);max-width:520px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;}
.hero-stats{display:flex;gap:40px;margin-top:36px;}
.hero-stats li{display:flex;flex-direction:column;}
.hero-stats b{font-size:28px;color:var(--navy);font-weight:900;}
.hero-stats span{font-size:13px;color:var(--muted);}

.hero-card .step-card{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);position:relative;overflow:hidden;}
.step-card-head{font-size:12px;letter-spacing:2px;color:#a9c2db;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,122,61,.25);}
.step-card h3{font-size:20px;margin-bottom:8px;}
.step-card p{font-size:14px;color:#cfe0f0;margin-bottom:20px;}
.progress{margin-bottom:20px;}
.progress-bar{height:8px;background:rgba(255,255,255,.16);border-radius:6px;overflow:hidden;margin-bottom:8px;}
.progress-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--orange2));border-radius:6px;transition:width 1s;}
.progress-label{display:flex;justify-content:space-between;font-size:11px;color:#9fb7d0;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px;}
.tag{background:rgba(255,255,255,.12);color:#e7f0f8;font-size:12px;padding:5px 12px;border-radius:20px;}

/* Sections */
.sections{padding:72px 0;background:#fff;}
.sec-head{text-align:center;max-width:660px;margin:0 auto 40px;}
.sec-head.left{text-align:left;}
.sec-head h2{font-size:30px;color:var(--navy);font-weight:900;letter-spacing:-.3px;}
.sec-head p{color:var(--muted);margin-top:12px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.25s;cursor:pointer;display:flex;flex-direction:column;gap:10px;}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:#d7e6f2;}
.feature-card-accent{background:linear-gradient(160deg,#fff8f4,#fff);border-color:#ffe2d2;}
.feature-icon{font-size:30px;}
.feature-card h3{font-size:19px;color:var(--navy);font-weight:800;}
.feature-card p{font-size:14px;color:var(--muted);}
.feature-link{color:var(--orange);font-weight:700;font-size:14px;margin-top:auto;}

/* Process */
.process{padding:72px 0;background:var(--bg);}
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative;}
.timeline::before{content:"";position:absolute;top:28px;left:6%;right:6%;height:3px;background:linear-gradient(90deg,var(--blue),var(--orange));border-radius:3px;}
.timeline-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 16px;text-align:center;position:relative;transition:.2s;}
.timeline-item:hover{box-shadow:var(--shadow);transform:translateY(-4px);}
.t-num{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--navy));color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-weight:800;position:relative;z-index:2;}
.timeline-item h4{font-size:16px;color:var(--navy);margin-bottom:6px;}
.timeline-item p{font-size:12.5px;color:var(--muted);}

/* Trust */
.trust{padding:72px 0;background:#fff;}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.trust-list{display:flex;flex-direction:column;gap:16px;margin-top:24px;}
.trust-list li{display:flex;gap:14px;align-items:flex-start;background:var(--bg);border-radius:12px;padding:16px 18px;}
.trust-list b{color:var(--navy);min-width:110px;font-size:15px;}
.trust-list span{color:var(--muted);font-size:14px;}
.trust-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.trust-card-head{font-size:13px;color:var(--muted);margin-bottom:16px;}
.trust-row{display:flex;justify-content:space-between;font-size:14px;padding:10px 0;border-bottom:1px dashed var(--line);}
.trust-row:last-of-type{border-bottom:none;}
.trust-row .ok{color:#1a9c5e;font-weight:700;}
.trust-bar{height:8px;background:var(--bg);border-radius:6px;overflow:hidden;margin:16px 0 18px;}
.trust-bar span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--orange));border-radius:6px;width:0;transition:width 1.2s;}
.trust-toast{display:none;margin-top:14px;background:#e8f7ef;color:#1a9c5e;font-weight:700;font-size:14px;text-align:center;padding:12px;border-radius:10px;}
.trust-toast.show{display:block;animation:fade .4s;}
@keyframes fade{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* Community */
.community{padding:72px 0;background:var(--bg);}
.map-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;}
.map-bg{position:relative;background:linear-gradient(160deg,#dcebf5,#eef4fa);border-radius:var(--radius);min-height:340px;border:1px solid var(--line);overflow:hidden;}
.pin{position:absolute;font-size:24px;cursor:pointer;animation:float 2.4s ease-in-out infinite;transition:.2s;}
.pin:hover{transform:scale(1.3);}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}
.map-side{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:14px;}
.map-side h4{color:var(--navy);}
.help-list li{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--muted);padding:12px 0;border-bottom:1px dashed var(--line);gap:10px;}
.help-list li:last-child{border-bottom:none;}

/* Footer */
.footer{background:var(--navy);color:#cfe0f0;padding:52px 0 0;}
.footer-inner{display:grid;grid-template-columns:1fr 2fr;gap:40px;padding-bottom:36px;}
.foot-slogan{font-size:14px;color:#9fb7d0;margin-top:12px;}
.foot-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.foot-cols h5{color:#fff;font-size:15px;margin-bottom:12px;}
.foot-cols a{display:block;color:#9fb7d0;font-size:14px;margin-bottom:8px;}
.foot-cols a:hover{color:#fff;}
.foot-bottom{text-align:center;padding:20px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#7f97b2;}
.footer .brand{color:#fff;}
.footer .brand-mark{background:linear-gradient(135deg,var(--orange),var(--orange2));}

/* Modal */
.modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;}
.modal[hidden]{display:none;}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,44,71,.45);}
.modal-panel{position:relative;background:#fff;border-radius:var(--radius);padding:32px;max-width:440px;width:90%;box-shadow:var(--shadow);}
.modal-panel h3{color:var(--navy);margin-bottom:10px;}
.modal-panel p{color:var(--muted);margin-bottom:20px;}
.modal-close{position:absolute;top:14px;right:16px;background:none;border:none;font-size:24px;color:var(--muted);cursor:pointer;}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.trust-grid,.map-wrap{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr 1fr;}
  .timeline{grid-template-columns:1fr 1fr;}
  .timeline::before{display:none;}
  .hero h1{font-size:36px;}
}
@media (max-width:640px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:#fff;padding:20px;border-bottom:1px solid var(--line);gap:16px;}
  .nav-links.open{display:flex;}
  .nav-toggle{display:flex;}
  .card-grid,.timeline,.foot-cols{grid-template-columns:1fr;}
  .hero-stats{gap:24px;}
  .hero h1{font-size:30px;}
}