/* 网站138 - 极简白色布局 */
:root { --primary: #65A30D; --secondary: #84CC16; --accent: #A3E635; --text: #1e293b; --text-light: #64748b; --bg: #ffffff; --white: #ffffff; --radius: 6px; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "PingFang SC", sans-serif; background: var(--bg); color: var(--text); }
.container { max-width: 1100px; margin: 0 auto; padding: 0 25px; }

/* 头部 */
.header { background: var(--white); border-bottom: 1px solid #e2e8f0; }
.navbar { padding: 18px 0; display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 24px; font-weight: 600; color: var(--primary); letter-spacing: -0.5px; }
.nav-menu { display: flex; gap: 8px; list-style: none; }
.nav-menu a { padding: 10px 18px; color: var(--text); text-decoration: none; border-radius: var(--radius); transition: all 0.2s; font-size: 14px; font-weight: 500; }
.nav-menu a:hover { background: #f0fdf4; color: var(--primary); }
.nav-menu a.active { background: var(--primary); color: var(--white); }

/* 顶部条 */
.top-bar { background: #f0fdf4; color: var(--primary); padding: 8px 0; font-size: 13px; border-bottom: 1px solid #dcfce7; }
.top-bar .container { display: flex; justify-content: center; gap: 40px; }
.top-bar a { color: var(--primary); text-decoration: none; }

/* 英雄区 */
.hero { background: linear-gradient(135deg, var(--primary), var(--secondary)); padding: 80px 0; text-align: center; color: var(--white); }
.hero h1 { font-size: 36px; margin-bottom: 15px; font-weight: 600; letter-spacing: -0.5px; }
.hero p { font-size: 17px; opacity: 0.9; }

/* 功能区 */
.features { padding: 55px 0; background: #f8fafc; }
.section-title { text-align: center; font-size: 26px; margin-bottom: 40px; color: var(--text); font-weight: 600; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--white); padding: 30px; border-radius: var(--radius); text-align: center; border: 1px solid #e2e8f0; transition: all 0.2s; }
.feature-card:hover { border-color: var(--primary); box-shadow: 0 4px 12px rgba(101,163,13,0.1); }
.feature-icon { width: 52px; height: 52px; background: #f0fdf4; border: 2px solid var(--primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 15px; color: var(--primary); font-size: 22px; }
.feature-card h3 { font-size: 17px; margin-bottom: 10px; font-weight: 600; }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* 内容区 */
.content-area { padding: 50px 0; }
.content-section { background: var(--white); padding: 32px; border-radius: var(--radius); margin-bottom: 20px; border: 1px solid #e2e8f0; }
.content-section h2 { font-size: 20px; color: var(--primary); margin-bottom: 12px; font-weight: 600; }
.content-section p { font-size: 15px; color: var(--text-light); line-height: 1.8; }

/* CTA */
.cta { background: linear-gradient(135deg, var(--primary), var(--secondary)); padding: 55px 0; text-align: center; color: var(--white); }
.cta h2 { font-size: 26px; margin-bottom: 12px; font-weight: 600; }
.cta .btn { display: inline-block; padding: 12px 35px; background: var(--white); color: var(--primary); border-radius: var(--radius); font-weight: 600; text-decoration: none; }

/* 底部 */
.footer { background: #1c1917; color: var(--white); padding: 45px 0 20px; }
.footer-content { display: flex; justify-content: space-between; gap: 50px; }
.footer-section h4 { font-size: 15px; margin-bottom: 15px; color: var(--accent); font-weight: 600; }
.footer-section p { color: #a3e635; font-size: 13px; margin-bottom: 8px; opacity: 0.9; }
.footer-bottom { text-align: center; padding-top: 25px; border-top: 1px solid #44403c; color: #84cc16; font-size: 12px; }

.mobile-toggle { display: none; flex-direction: column: gap: 4px; background: none; border: none; cursor: pointer; }
.mobile-toggle span { width: 22px; height: 2px; background: var(--primary); }

@media (max-width: 992px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) {
    .navbar { flex-wrap: wrap; }
    .nav-menu { display: none; width: 100%; flex-direction: column; margin-top: 15px; }
    .nav-menu.active { display: flex; }
    .mobile-toggle { display: flex; }
    .hero h1 { font-size: 24px; }
    .footer-content { flex-direction: column; }
    .top-bar .container { flex-direction: column; gap: 8px; }
}