/* 全局重置 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:10px}
body{font-family:-apple-system,PingFang SC,'Noto Sans SC','Helvetica Neue',sans-serif;font-size:14px;line-height:1.6;color:#1a1a2e;background:linear-gradient(135deg,#f0e6f0 0%,#d4c4e8 12%,#c8dce8 25%,#d4e8d4 38%,#e8dcc8 50%,#f0d0d0 62%,#e0c8e8 75%,#c8dce8 88%,#f0e6f0 100%);background-size:800% 800%;animation:bgShift 12s ease-in-out infinite;min-height:100vh;overflow-x:hidden}
img{max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.section{padding:80px 0;position:relative}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:28px;font-weight:700;color:#1a1a2e;display:inline-block;position:relative}
.section-title h2::after{content:'';display:block;width:40px;height:3px;background:linear-gradient(90deg,#667eea,#764ba2);margin:12px auto 0;border-radius:2px}
.section-title p{color:rgba(26,26,46,.45);font-size:15px;margin:10px auto 0;max-width:600px}

/* 网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-5{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}

/* 按钮 */
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .3s;border:none;text-decoration:none;text-align:center}
.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 15px rgba(102,126,234,.3)}
.btn-outline{background:transparent;border:1px solid rgba(0,0,0,.15);color:#333}

/* 毛玻璃卡片 */
.glass-card{background:rgba(255,255,255,.35);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.5);border-radius:16px;padding:28px;transition:all .4s}
.glass-card:hover{background:rgba(255,255,255,.5);box-shadow:0 8px 40px rgba(0,0,0,.06);transform:translateY(-4px)}

/* 滚动渐入动画 */
.fade-up{opacity:0;transform:translateY(30px);transition:all .7s ease}
.fade-up.show{opacity:1;transform:translateY(0)}
.delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}.delay-3{transition-delay:.3s}.delay-4{transition-delay:.4s}

/* 背景浮动光晕 */
.bg-float{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1;overflow:hidden}
.bg-float .blob{position:absolute;border-radius:50%;filter:blur(100px);animation:floatGlow 12s ease-in-out infinite}
.bg-float .blob:nth-child(1){width:500px;height:500px;background:rgba(139,92,246,.12);top:5%;left:-8%;animation-delay:0s}
.bg-float .blob:nth-child(2){width:420px;height:420px;background:rgba(236,72,153,.1);top:35%;right:-10%;animation-delay:-3s}
.bg-float .blob:nth-child(3){width:380px;height:380px;background:rgba(56,189,248,.1);bottom:10%;left:15%;animation-delay:-6s}
.bg-float .blob:nth-child(4){width:320px;height:320px;background:rgba(251,191,36,.09);top:55%;left:45%;animation-delay:-2s}
.bg-float .blob:nth-child(5){width:280px;height:280px;background:rgba(248,113,113,.08);bottom:20%;right:12%;animation-delay:-9s}

/* 动画关键帧 */
@keyframes bgShift{0%{background-position:0% 50%}25%{background-position:100% 0%}50%{background-position:100% 100%}75%{background-position:0% 100%}100%{background-position:0% 50%}}
@keyframes floatGlow{0%,100%{transform:translateY(0) scale(1);opacity:.4}50%{transform:translateY(-20px) scale(1.15);opacity:.7}}
@keyframes orbFloat{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(80px,-60px) scale(1.08)}50%{transform:translate(-40px,50px) scale(.95)}75%{transform:translate(60px,40px) scale(1.04)}}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes shieldPulse{0%,100%{transform:scale(1);opacity:.4}50%{transform:scale(1.1);opacity:1}}
@keyframes shieldSpin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}