:root { --primary: #2563eb; --accent
: #7c3aed; --text-dark: #1f2937; --text-
light: #6b7280; --bg: #f9fafb; --white: #ffffff; }

        * { box-sizing: border-box; margin: 0; padding: 0; scroll-behavior: smooth; }

        body { font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif; line-height: 1
.6; color: var(--text-dark); background-color: var(--bg); }
        .container
 { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        header { background: var(--white); padding: 15px 0; border-bottom: 1
px solid #e5e7eb; position: sticky; top: 0; z-index: 100
0; }
        .nav-wrapper { display: flex; justify-content: space-between; align-items: center; }

        .nav-links { display: flex; gap: 0; }
        .nav-links a { text
-decoration: none; color: var(--text-dark); padding: 10px 15px; font-
weight: 500; font-size: 14px; transition: color 0.3s
; }
        .nav-links a:hover { color: var(--primary); }
        .btn {
 display: inline-block; padding: 10px 24px; border-radius: 6px; text
-decoration: none; transition: all 0.3s; font-weight: 600; }

        .btn-primary { background: linear-gradient(135deg, var(--primary), var(--
accent)); color: white; }
        .hero { padding: 80px 0; text-align: center; background
: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
 }
        .hero h1 { font-size: 3rem; margin-bottom: 20px; background
: linear-gradient(to right, var(--primary), var(--accent)); -webkit-background-clip: text
; -webkit-text-fill-color: transparent; }
        .hero p { font-size: 
1.25rem; color: var(--text-light); max-width: 700px; margin:
 0 auto 30px; }
        .section { padding: 60px 0; }

        .section-title { text-align: center; font-size: 2rem; margin-bottom: 
40px; }
        .grid-3 { display: grid; grid-template-columns: repeat(auto
-fit, minmax(300px, 1fr)); gap: 20px; }

        .card { background: var(--white); padding: 30px; border-radius: 12px
; border: 1px solid #e5e7eb; transition: transform 0.3s; }
        .
card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,
0,0,0.05); }
        .table-wrap { overflow-x: auto; }

        table { width: 100%; border-collapse: collapse; margin-top: 20px;
 }
        th, td { padding: 15px; text-align: left; border-bottom: 1px
 solid #e5e7eb; }
        th { background: #f3f4f6; }
        .faq
-item { margin-bottom: 10px; border: 1px solid #e5e7eb; border
-radius: 8px; overflow: hidden; }
        .faq-question { padding: 15
px; background: #fff; cursor: pointer; font-weight: 600; display: flex; justify-content
: space-between; }
        .faq-answer { padding: 15px; background: #f9fafb; display
: none; }
        .form-group { margin-bottom: 15px; }
        input, select,
 textarea { width: 100%; padding: 12px; border: 1px solid #e
5e7eb; border-radius: 6px; }
        footer { background: #1118
27; color: #9ca3af; padding: 40px 0; margin-top: 4
0px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit
, minmax(200px, 1fr)); gap: 40px; }
        .footer-links a {
 color: #d1d5db; text-decoration: none; display: block; margin-bottom: 1
0px; }
        .contact-float { position: fixed; bottom: 30px; right: 3
0px; z-index: 999; }
        @media (max-width: 7
68px) { .nav-links { display: none; } .hero h1 { font-size:
 2rem; } }