*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1a2a6c;--secondary:#b21f1f;--accent:#fdbb2d;--bg:#f4f6fc;--text:#1a1a2e;--glass:rgba(255,255,255,0.7);--shadow:0 8px 32px rgba(0,0,0,0.08);--radius:16px;--transition:0.3s ease}
body.dark{--bg:#0d0d1a;--text:#e0e0e0;--glass:rgba(20,20,40,0.8);--shadow:0 8px 32px rgba(0,0,0,0.4);--primary:#2a3f8f;--secondary:#d43f3f}
html{scroll-behavior:smooth}
body{font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--text);line-height:1.7;transition:background var(--transition),color var(--transition)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,0.15);transition:background var(--transition)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;max-width:1200px;margin:0 auto}
.logo{font-size:1.6rem;font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
nav{display:flex;gap:24px;align-items:center}
nav a{font-weight:500;padding:6px 0;position:relative;transition:color var(--transition)}
nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--secondary);transition:width var(--transition)}
nav a:hover::after,nav a.active::after{width:100%}
.dark-toggle{background:none;border:2px solid var(--text);color:var(--text);width:38px;height:38px;border-radius:50%;cursor:pointer;font-size:1.2rem;display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.dark-toggle:hover{background:var(--text);color:var(--bg)}
.menu-btn{display:none;background:none;border:none;font-size:1.8rem;color:var(--text);cursor:pointer}
@media(max-width:768px){.menu-btn{display:block} nav{display:none;flex-direction:column;position:absolute;top:100%;left:0;width:100%;background:var(--glass);backdrop-filter:blur(12px);padding:20px;gap:16px;border-bottom:1px solid rgba(255,255,255,0.1)} nav.open{display:flex}}
.hero{position:relative;overflow:hidden;min-height:85vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:100px 20px 60px;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 50%,var(--accent) 100%);background-size:400% 400%;animation:gradientShift 12s ease infinite}
@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.hero .glass-card{background:var(--glass);backdrop-filter:blur(16px);border-radius:var(--radius);padding:60px 40px;max-width:800px;margin:0 auto;box-shadow:var(--shadow)}
.hero h1{font-size:3rem;margin-bottom:20px;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{font-size:1.2rem;margin-bottom:30px;color:var(--text)}
.hero .btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 36px;border-radius:50px;font-weight:600;transition:all var(--transition);border:none;cursor:pointer;font-size:1rem}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;box-shadow:0 4px 15px rgba(26,42,108,0.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(26,42,108,0.4)}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
@media(max-width:768px){.hero h1{font-size:2rem} .hero .glass-card{padding:30px 20px}}
section{padding:80px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:2.2rem;margin-bottom:12px;position:relative;display:inline-block}
.section-title h2::after{content:'';display:block;width:60px;height:4px;background:linear-gradient(90deg,var(--primary),var(--secondary));margin:8px auto 0;border-radius:2px}
.section-title p{color:var(--text);opacity:0.8;max-width:600px;margin:0 auto}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:992px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr 1fr}}
@media(max-width:576px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--glass);backdrop-filter:blur(8px);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:transform var(--transition),box-shadow var(--transition);border:1px solid rgba(255,255,255,0.1)}
.card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,0.12)}
.card-icon{font-size:2.5rem;margin-bottom:16px;display:inline-block}
.card h3{font-size:1.3rem;margin-bottom:10px}
.card p{opacity:0.85}
.stats{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;text-align:center;padding:60px 0}
.stats .grid-4{color:#fff}
.stat-item h3{font-size:2.8rem;font-weight:800}
.stat-item p{opacity:0.9;font-size:1.1rem}
.faq-item{border-bottom:1px solid rgba(0,0,0,0.08);padding:16px 0;cursor:pointer}
.faq-question{display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:1.1rem}
.faq-question span{transition:transform 0.3s}
.faq-item.open .faq-question span{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.4s ease;padding-top:0;opacity:0}
.faq-item.open .faq-answer{max-height:300px;padding-top:12px;opacity:1}
footer{background:var(--primary);color:#fff;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
footer h4{font-size:1.2rem;margin-bottom:16px;position:relative;padding-bottom:8px}
footer h4::after{content:'';position:absolute;bottom:0;left:0;width:40px;height:2px;background:var(--accent)}
footer a{display:block;padding:4px 0;opacity:0.8;transition:opacity var(--transition)}
footer a:hover{opacity:1}
.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,0.1);font-size:0.9rem;opacity:0.8}
#backTop{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;background:var(--secondary);color:#fff;border:none;cursor:pointer;font-size:1.4rem;box-shadow:0 4px 15px rgba(0,0,0,0.2);opacity:0;visibility:hidden;transition:all var(--transition);z-index:999}
#backTop.visible{opacity:1;visibility:visible}
#backTop:hover{transform:scale(1.1)}
.search-box{display:flex;max-width:400px;margin:20px auto;background:var(--glass);backdrop-filter:blur(8px);border-radius:50px;overflow:hidden;box-shadow:var(--shadow)}
.search-box input{flex:1;padding:14px 20px;border:none;background:transparent;color:var(--text);font-size:1rem;outline:none}
.search-box button{padding:14px 24px;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border:none;cursor:pointer;font-weight:600}
.fade-up{opacity:0;transform:translateY(30px);transition:opacity 0.6s ease,transform 0.6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.breadcrumb{background:var(--glass);backdrop-filter:blur(8px);padding:12px 0;margin-top:70px;font-size:0.9rem;border-bottom:1px solid rgba(255,255,255,0.1)}
.breadcrumb span{opacity:0.7}
.breadcrumb a{color:var(--secondary)}
.article-content{max-width:800px;margin:0 auto;line-height:1.9}
.article-content p{margin-bottom:1.2rem}
.partner-logos{display:flex;flex-wrap:wrap;justify-content:center;gap:30px;align-items:center}
.partner-item{background:var(--glass);backdrop-filter:blur(6px);padding:20px 30px;border-radius:12px;box-shadow:var(--shadow);font-weight:600;font-size:1.1rem}
.team-img{width:100px;height:100px;border-radius:50%;object-fit:cover;margin:0 auto 16px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;color:#fff;font-size:2.5rem;font-weight:700}
.timeline{position:relative;padding-left:40px;max-width:700px;margin:0 auto}
.timeline::before{content:'';position:absolute;left:16px;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--primary),var(--secondary))}
.timeline-item{position:relative;margin-bottom:30px;padding-left:20px}
.timeline-item::before{content:'';position:absolute;left:-24px;top:6px;width:16px;height:16px;border-radius:50%;background:var(--secondary);border:3px solid var(--bg)}
.timeline-item h4{font-size:1.2rem}
.timeline-item span{font-size:0.9rem;opacity:0.7}
@media(max-width:768px){section{padding:50px 0} .section-title h2{font-size:1.6rem}}