*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#0f172a;background:#f5f7fb}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto;display:block}
:root{--primary:#2563eb;--primary-2:#1d4ed8;--ink:#0f172a;--muted:#64748b;--card:#ffffff;--line:#e2e8f0;--bg:#f5f7fb;--shadow:0 16px 40px rgba(15,23,42,.08)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.topbar{position:sticky;top:0;z-index:50;background:#ffffffd9;backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:0}
.brand img{height:40px;width:auto;object-fit:contain;transition:.2s}
.brand:hover img{opacity:.85}
.nav{display:flex;gap:10px;align-items:center;z-index:60;position:static;transform:none;opacity:1;pointer-events:auto;flex-direction:row}
.nav-link{border:1px solid var(--line);background:#fff;color:#0f172a;border-radius:999px;padding:9px 16px;font-size:13px;cursor:pointer;transition:.2s;box-shadow:0 6px 16px rgba(15,23,42,.06)}
.nav-link:hover{transform:translateY(-1px);border-color:var(--primary);color:var(--primary)}
.menu-btn{display:none;border:none;background:transparent;color:#fff;border-radius:10px;padding:8px;font-size:0;line-height:1;cursor:pointer;position:relative;width:44px;height:44px;transition:.3s all}
.menu-icon{display:inline-block;position:relative;width:24px;height:18px}
.menu-icon span{display:block;position:absolute;width:100%;height:2.5px;background:#0f172a;border-radius:2px;transition:.3s cubic-bezier(.4,0,.2,1);left:0}
.menu-icon span:nth-child(1){top:3px}
.menu-icon span:nth-child(2){top:9px;opacity:1}
.menu-icon span:nth-child(3){top:15px}
.menu-btn:hover{background:rgba(15,23,42,.05)}
.menu-btn:hover .menu-icon span:nth-child(2){opacity:.6}
.nav-backdrop{display:none}
.hero{padding:50px 0 20px;background:radial-gradient(1200px 400px at 10% 0,#dbeafe,transparent)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center}
.tag{display:inline-block;background:#e0ecff;color:#1d4ed8;border-radius:999px;padding:6px 12px;font-size:12px;margin-bottom:12px}
.hero h1{font-size:34px;line-height:1.25;margin:0 0 10px}
.hero p{color:var(--muted);margin:0 0 16px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{border-radius:10px;padding:11px 20px;border:1px solid var(--line);background:#fff;cursor:pointer;transition:.2s;font-weight:600;font-size:14px}
.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 6px 20px rgba(37,99,235,.25)}
.btn.primary:hover{background:var(--primary-2);transform:translateY(-2px)}
.btn.ghost{background:#f8fafc}
.btn.ghost:hover{border-color:var(--primary);color:var(--primary);background:#eff6ff}
.badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.badge-row span{background:linear-gradient(135deg,rgba(34,197,94,.1),rgba(34,197,94,.05));border:1px solid rgba(34,197,94,.3);border-radius:8px;padding:7px 12px;font-size:12px;color:#22c55e;font-weight:600}
.hero-media{position:relative;display:grid;place-items:center}
.hero-media img{border-radius:22px;box-shadow:var(--shadow)}
.hero-media .floating{position:absolute;right:-10px;bottom:-30px;width:52%;border-radius:18px;animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.band{height:28px;background:linear-gradient(90deg,#2563eb,#60a5fa);margin:20px 0}
.section{padding:60px 0}
.section:first-of-type{padding-top:20px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{margin:0;font-size:26px;color:#0f172a;font-weight:700}
.section-head p{margin:4px 0 0;color:var(--muted);font-size:15px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.media img{border-radius:18px;box-shadow:var(--shadow)}
.content h2{margin:0 0 12px;font-size:24px;color:#0f172a}
.content p{color:var(--muted);font-size:15px;line-height:1.6;margin:0 0 16px}
.content ul.check{margin:16px 0;padding:0 0 0 0}
.content ul.check li{list-style:none;padding:8px 0;font-size:14px;color:#0f172a;margin:0}
.mini{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:16px 0}
.mini div{background:linear-gradient(135deg,#f8fafc,#f1f5f9);border:1px solid var(--line);padding:12px 10px;border-radius:12px;font-size:13px;font-weight:500;text-align:center;color:#0f172a;transition:.2s}
.mini div:hover{border-color:var(--primary);background:linear-gradient(135deg,#eff6ff,#f1f5f9)}
.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.cards article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);transition:.2s;position:relative;overflow:hidden}
.cards article::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:.4s}
.cards article h3{margin:0 0 10px;font-size:16px;color:#0f172a;font-weight:700}
.cards article p{font-size:14px;color:var(--muted);margin:0 0 12px;line-height:1.6}
.cards article:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:0 20px 40px rgba(37,99,235,.12)}
.cards article:hover::before{left:100%}
.cards .link{color:var(--primary);font-weight:600;font-size:14px;display:inline-block;transition:.2s}
.cards .link:hover{color:var(--primary-2)}
.platforms{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.platform{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);transition:.2s}
.platform:hover{border-color:var(--primary);box-shadow:0 12px 32px rgba(37,99,235,.1)}
.platform h4{margin:0 0 8px;font-size:15px;color:#0f172a}
.platform p{color:var(--muted);margin:0 0 14px;font-size:13px}
.plat-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.plat-head img{width:26px;height:26px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:12px;box-shadow:var(--shadow);transition:.2s}
.faq details[open]{border-color:var(--primary);box-shadow:0 8px 24px rgba(37,99,235,.08)}
.faq summary{cursor:pointer;font-weight:600;font-size:15px;color:#0f172a;padding:4px 0;user-select:none}
.faq summary:hover{color:var(--primary)}
.faq p{color:var(--muted);margin:12px 0 0;font-size:14px;line-height:1.6}
.logo-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.logo-grid.partners{grid-template-columns:repeat(5,minmax(0,1fr))}
.logo-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 10px;display:grid;place-items:center;gap:6px;box-shadow:var(--shadow);transition:.2s}
.logo-item:hover{border-color:var(--primary);box-shadow:0 8px 20px rgba(37,99,235,.1);transform:translateY(-2px)}
.logo-item img{width:36px;height:36px}
.logo-item span{font-size:11px;color:var(--muted);text-align:center}
.site-foot{background:linear-gradient(135deg,#0b1220 0%,#1a2332 100%);color:#e2e8f0;padding:40px 0 20px;margin-top:60px;border-top:1px solid rgba(148,163,184,.1)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px}
.foot-main p{color:#cbd5f5;margin:8px 0}
.foot-badges{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.foot-badges span{font-size:12px;background:rgba(34,197,94,.15);color:#22c55e;padding:4px 10px;border-radius:8px;font-weight:600}
.site-foot a{color:#cbd5f5;transition:.2s}
.site-foot a:hover{color:#60a5fa}
.site-foot h4{margin:0 0 12px;font-size:14px;font-weight:700;color:#fff}
.foot-desc{font-size:13px;color:#cbd5f5;margin:6px 0;line-height:1.6}
.copy{border-top:1px solid rgba(148,163,184,.1);margin-top:20px;padding-top:16px;font-size:12px;color:#94a3b8;display:flex;justify-content:space-between;align-items:center}
.copy-badge{background:rgba(34,197,94,.15);color:#22c55e;padding:4px 10px;border-radius:6px;font-weight:600;font-size:11px}

@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .cards,.platforms{grid-template-columns:repeat(2,minmax(0,1fr))}
  .logo-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .logo-grid.partners{grid-template-columns:repeat(3,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section-head{flex-direction:column;align-items:flex-start}
}

@media (max-width:768px){
  .hero{padding:40px 0 10px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero p{font-size:15px}
  .cards,.platforms{grid-template-columns:1fr}
  .section{padding:40px 0}
  .hero-media{margin-top:20px}
  .hero-media .floating{width:55%;right:-12px;bottom:-35px}
}

@media (max-width:640px){
  .menu-btn{display:inline-flex;position:fixed;right:14px;top:13px;z-index:90;border-radius:12px;padding:8px;background:#f5f7fb;border:1px solid rgba(15,23,42,.08);align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(15,23,42,.12);width:48px;height:48px}
  .menu-btn:hover{background:#f1f5f9;box-shadow:0 6px 16px rgba(15,23,42,.15)}
  .menu-btn[aria-expanded="true"] .menu-icon span:nth-child(1){transform:rotate(45deg);top:8px}
  .menu-btn[aria-expanded="true"] .menu-icon span:nth-child(2){opacity:0;transform:scale(0)}
  .menu-btn[aria-expanded="true"] .menu-icon span:nth-child(3){transform:rotate(-45deg);top:8px}
  .nav{
    position:fixed;left:12px;right:12px;top:64px;transform:translateY(-10px);
    width:auto;max-width:520px;margin:0 auto;background:#ffffff;border-radius:20px;
    padding:16px;box-shadow:0 24px 70px rgba(0,0,0,.28);
    transition:.22s ease;z-index:85;gap:12px;opacity:0;pointer-events:none;
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch
  }
  .nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{
    width:100%;text-align:center;font-size:14px;background:#f8fafc;
    border-radius:14px;padding:12px 10px;white-space:nowrap
  }
  .nav-backdrop{background:rgba(15,23,42,.45);z-index:80;display:none}
  .nav-backdrop.show{display:block}
  .topbar{padding-bottom:6px}
  .topbar-inner{gap:8px}
  .hero-grid{gap:20px}
  .hero h1{font-size:24px;line-height:1.3;margin-bottom:12px}
  .hero p{font-size:14px;margin-bottom:14px}
  .btn-row{gap:10px}
  .btn{padding:9px 16px;font-size:14px;border-radius:8px}
  .badge-row{gap:8px;margin-top:14px}
  .badge-row span{padding:5px 8px;font-size:11px}
  .mpdl-cards{flex-direction:column;align-items:stretch}
  .mpdl-card{width:100%;max-width:100%;min-width:0;padding:20px 16px}
  .mpdl-title{font-size:18px}
  .mpdl-subtitle{font-size:13px}
  .mpdl-download-bar{padding:28px 16px}
  .mini{grid-template-columns:1fr;gap:10px}
  .mini div{padding:10px 8px;font-size:12px}
  .section-head h2{font-size:20px;margin-bottom:6px}
  .section-head p{font-size:13px}
  .section-head{margin-bottom:20px}
  .logo-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .logo-grid.partners{grid-template-columns:repeat(2,minmax(0,1fr))}
  .logo-item{padding:10px 8px}
  .logo-item img{width:30px;height:30px}
  .faq details{padding:12px 14px;margin-bottom:10px}
  .faq summary{font-size:14px}
  .faq p{font-size:13px;margin-top:10px;line-height:1.5}
  .foot-grid{grid-template-columns:1fr;gap:20px}
  .foot-main{padding-bottom:12px;border-bottom:1px solid rgba(148,163,184,.1)}
  .copy{flex-direction:column;gap:8px;align-items:flex-start}
  .copy-badge{display:block;text-align:left}
}

@media (max-width:480px){
  .wrap{padding:0 16px}
  .topbar-inner{padding:10px 0}
  .brand img{height:34px}
  .menu-btn{right:12px;top:10px;width:44px;height:44px;padding:6px;border:1px solid rgba(15,23,42,.08)}
  .menu-icon{width:24px;height:18px}
  .menu-icon span{height:2.5px}
  .menu-icon span:nth-child(1){top:3px}
  .menu-icon span:nth-child(2){top:8px}
  .menu-icon span:nth-child(3){top:13px}
  .hero{padding:32px 0 8px}
  .hero h1{font-size:20px;line-height:1.35}
  .hero p{font-size:13px;line-height:1.5}
  .section-head h2{font-size:18px}
  .section-head{margin-bottom:16px}
  .platform h4{font-size:14px}
  .platform p{font-size:12px}
  .nav{grid-template-columns:1fr}
  .nav-link{font-size:13px}
  .hero-media{margin-top:20px}
  .hero-media .floating{width:60%;right:-15px;bottom:-40px}
  .split.reverse{grid-template-columns:1fr}
  .split.reverse .media{order:2}
  .split.reverse .content{order:1}
  .plat-head img{width:20px;height:20px}
  .cards article{padding:16px}
}

@media (max-width:360px){
  .wrap{padding:0 14px}
  .topbar-inner{padding:10px 0;gap:6px}
  .brand img{height:32px}
  .menu-btn{right:10px;top:10px;width:40px;height:40px;padding:5px;border:1px solid rgba(15,23,42,.08)}
  .menu-icon{width:22px;height:16px}
  .menu-icon span{height:2px}
  .menu-icon span:nth-child(1){top:2px}
  .menu-icon span:nth-child(2){top:7px}
  .menu-icon span:nth-child(3){top:12px}
  .hero h1{font-size:18px}
  .hero p{font-size:12px}
  .section-head h2{font-size:16px}
  .btn{padding:8px 14px;font-size:12px}
  .mpdl-cards{padding:12px 8px}
  .mpdl-card{padding:16px 12px;min-width:auto}
  .mpdl-icon{font-size:28px}
  .mpdl-card-title{font-size:14px}
  .nav-link{font-size:12px;padding:10px 8px}
}