*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;font-size:18px;line-height:1.8;color:#333;background:#f7f8fa}
a{text-decoration:none;color:#1a73e8;transition:color .2s}
a:hover{color:#0d47a1}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
header{background:linear-gradient(135deg,#0c1220 0%,#1a2744 100%);padding:18px 0;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.15)}
header .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}
.logo{color:#fff;font-size:26px;font-weight:700;letter-spacing:.5px}
.logo span{color:#f9a825}
nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
nav ul li a{color:rgba(255,255,255,.85);padding:10px 16px;font-size:17px;border-radius:6px;transition:all .25s}
nav ul li a:hover,nav ul li a.active{background:rgba(255,255,255,.1);color:#f9a825}
.hero{background:linear-gradient(135deg,#0c1220 0%,#1a2744 50%,#23355e 100%);color:#fff;padding:80px 0 90px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-50%;left:-20%;width:60%;height:200%;background:radial-gradient(circle,rgba(249,168,37,.08) 0%,transparent 70%);transform:rotate(-15deg)}
.hero::after{content:"";position:absolute;bottom:-40%;right:-15%;width:50%;height:180%;background:radial-gradient(circle,rgba(26,115,232,.1) 0%,transparent 70%);transform:rotate(12deg)}
.hero h1{font-size:44px;margin-bottom:20px;position:relative;z-index:2;font-weight:700;line-height:1.3}
.hero p{font-size:20px;color:rgba(255,255,255,.8);max-width:760px;margin:0 auto 32px;position:relative;z-index:2;line-height:1.8}
.hero-buttons{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;position:relative;z-index:2}
.btn{display:inline-block;padding:14px 34px;border-radius:8px;font-size:18px;font-weight:600;transition:all .25s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,#f9a825,#f57f17);color:#0c1220;box-shadow:0 4px 20px rgba(249,168,37,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(249,168,37,.45);color:#0c1220}
.btn-secondary{background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.25)}
.btn-secondary:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.4);color:#fff}
main{padding:60px 0 70px;min-height:calc(100vh - 200px)}
.section{margin-bottom:60px}
.section h2{font-size:30px;margin-bottom:24px;color:#0c1220;font-weight:700;position:relative;padding-bottom:14px}
.section h2::after{content:"";position:absolute;bottom:0;left:0;width:60px;height:4px;background:linear-gradient(90deg,#f9a825,#f57f17);border-radius:2px}
.section h3{font-size:22px;margin:28px 0 16px;color:#1a2744;font-weight:600}
.section p{margin-bottom:18px;color:#444;line-height:1.9}
.section ul,.section ol{margin:18px 0 24px 22px}
.section ul li,.section ol li{margin-bottom:12px;line-height:1.8;color:#444}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin:32px 0}
.card{background:#fff;border-radius:12px;padding:28px 24px;box-shadow:0 2px 16px rgba(0,0,0,.06);border:1px solid #eee;transition:all .3s}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.1)}
.card h3{margin-top:0;color:#0c1220;font-size:20px}
.card p{margin-bottom:0;color:#666;font-size:18px;line-height:1.7}
.feature-icon{width:54px;height:54px;background:linear-gradient(135deg,#f9a825,#f57f17);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;color:#fff}
.breadcrumb{background:#fff;padding:16px 24px;border-radius:10px;margin-bottom:28px;font-size:16px;color:#888;border:1px solid #eee}
.breadcrumb a{color:#1a73e8}
.breadcrumb span{margin:0 8px;color:#ccc}
.content-box{background:#fff;border-radius:12px;padding:40px 36px;box-shadow:0 2px 16px rgba(0,0,0,.05);border:1px solid #eee}
.content-box h1{font-size:34px;margin-bottom:24px;color:#0c1220;font-weight:700;line-height:1.4}
.content-box h2{font-size:26px;margin:36px 0 18px;color:#0c1220;font-weight:700}
.content-box h3{font-size:21px;margin:28px 0 14px;color:#1a2744;font-weight:600}
.content-box p{margin-bottom:18px;color:#444;line-height:1.9}
.content-box ul,.content-box ol{margin:18px 0 22px 24px}
.content-box ul li,.content-box ol li{margin-bottom:10px;line-height:1.8;color:#444}
.highlight-box{background:linear-gradient(135deg,#fff8e1,#ffecb3);border-left:4px solid #f9a825;padding:22px 26px;margin:24px 0;border-radius:0 10px 10px 0}
.highlight-box p{margin-bottom:0;color:#5d4037}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin:28px 0}
.info-item{background:#f8f9fc;padding:20px;border-radius:10px;text-align:center;border:1px solid #e8eaf0}
.info-item strong{display:block;font-size:28px;color:#0c1220;margin-bottom:6px}
.info-item span{font-size:16px;color:#777}
.link-list{list-style:none;margin:24px 0;padding:0}
.link-list li{margin-bottom:14px;padding-left:22px;position:relative}
.link-list li::before{content:"▸";position:absolute;left:0;color:#f9a825;font-weight:700}
.link-list li a{font-size:18px;color:#1a73e8}
.link-list li a:hover{color:#0d47a1}
footer{background:#0c1220;color:rgba(255,255,255,.7);padding:50px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-col h4{color:#fff;font-size:18px;margin-bottom:18px;font-weight:600}
.footer-col ul{list-style:none;padding:0}
.footer-col ul li{margin-bottom:12px;font-size:16px}
.footer-col ul li a{color:rgba(255,255,255,.65);font-size:16px}
.footer-col ul li a:hover{color:#f9a825}
.footer-col p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:15px;color:rgba(255,255,255,.5)}
.tabs{display:flex;gap:8px;margin:24px 0 28px;flex-wrap:wrap;border-bottom:2px solid #eee;padding-bottom:2px}
.tab-item{padding:12px 24px;background:none;border:none;font-size:17px;cursor:pointer;color:#666;border-radius:8px 8px 0 0;transition:all .2s;font-weight:500}
.tab-item.active{color:#f57f17;border-bottom:3px solid #f9a825;margin-bottom:-2px}
.steps{counter-reset:step-counter;margin:30px 0}
.step-item{position:relative;padding-left:70px;margin-bottom:26px}
.step-item::before{counter-increment:step-counter;content:counter(step-counter);position:absolute;left:0;top:0;width:50px;height:50px;background:linear-gradient(135deg,#f9a825,#f57f17);color:#0c1220;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:20px}
.step-item h4{font-size:19px;color:#0c1220;margin-bottom:8px;font-weight:600}
.step-item p{margin-bottom:0;color:#555;font-size:18px}
.compare-table{width:100%;border-collapse:collapse;margin:28px 0;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.05)}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid #eee;font-size:18px}
.compare-table th{background:linear-gradient(135deg,#0c1220,#1a2744);color:#fff;font-weight:600}
.compare-table tr:last-child td{border-bottom:none}
.compare-table tr:hover td{background:#f8f9fc}
.badge{display:inline-block;padding:6px 14px;border-radius:20px;font-size:14px;font-weight:600}
.badge-success{background:#e8f5e9;color:#2e7d32}
.badge-warning{background:#fff3e0;color:#e65100}
.faq-item{background:#fff;border:1px solid #eee;border-radius:10px;margin-bottom:14px;overflow:hidden}
.faq-question{padding:20px 24px;font-weight:600;color:#0c1220;cursor:pointer;font-size:18px;position:relative;padding-right:50px}
.faq-question::after{content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);font-size:22px;color:#f9a825;font-weight:300}
.faq-answer{padding:0 24px 22px;color:#555;line-height:1.8;font-size:18px}
@media(max-width:768px){.hero h1{font-size:30px}
.hero p{font-size:17px}
.hero{padding:50px 0 60px}
main{padding:36px 0 45px}
.section h2{font-size:24px}
.content-box{padding:26px 20px}
.content-box h1{font-size:26px}
.footer-grid{grid-template-columns:1fr 1fr;gap:30px}
nav ul{gap:4px}
nav ul li a{padding:8px 12px;font-size:14px}
.logo{font-size:22px}
.card-grid{grid-template-columns:1fr}
.btn{padding:12px 24px;font-size:15px}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}
.hero h1{font-size:24px}
.info-grid{grid-template-columns:1fr 1fr}}