:root {
    --primary-color: #00b45a; /* 360标志性绿色 */
    --hover-color: #00994d;
    --bg-color: #f5f7f9; /* 导航页典型的浅灰背景 */
    --card-bg: #ffffff;
    --text-main: #333333;
    --text-muted: #666666;
    --border-color: #e5e5e5;
    --shadow: 0 4px 16px rgba(0,0,0,0.06);
    --border-radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei", -apple-system, sans-serif; color: var(--text-main); background-color: var(--bg-color); line-height: 1.6; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; border-radius: var(--border-radius); }

/* 导航 */
.header { background: var(--card-bg); box-shadow: 0 2px 8px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.nav-wrap { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 70px; padding: 0 20px; }
.logo { font-size: 22px; font-weight: bold; color: var(--primary-color); display: flex; align-items: center; gap: 10px; }
.logo img { width: 32px; height: 32px; border-radius: 0; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 16px; color: var(--text-main); transition: 0.2s; font-weight: 500; }
.nav-links a:hover, .nav-links a.active { color: var(--primary-color); }

.container { max-width: 1200px; margin: 0 auto; padding: 60px 20px; }

/* 按钮通用 */
.btn { display: inline-block; padding: 12px 30px; border-radius: 30px; font-size: 16px; font-weight: bold; cursor: pointer; transition: 0.3s; text-align: center; }
.btn-primary { background: var(--primary-color); color: #fff; box-shadow: 0 4px 12px rgba(0,180,90,0.3); }
.btn-primary:hover { background: var(--hover-color); transform: translateY(-2px); }
.btn-secondary { background: #fff; color: var(--primary-color); border: 1px solid var(--primary-color); }
.btn-secondary:hover { background: #f0fdf5; }

/* 首屏 导航页搜索风格 */
.hero { text-align: center; padding: 80px 20px 40px; background: url('assets/1.jpg') center/cover no-repeat; position: relative; }
.hero::before { content: ''; position: absolute; inset: 0; background: rgba(255,255,255,0.85); z-index: 0; }
.hero-content { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.hero h1 { font-size: 48px; margin-bottom: 15px; color: var(--text-main); text-shadow: 0 2px 4px rgba(255,255,255,0.8); }
.hero p { font-size: 20px; color: var(--primary-color); margin-bottom: 40px; font-weight: bold; }

/* 拟物搜索框 */
.mock-search-bar { display: flex; width: 100%; max-width: 600px; margin: 0 auto 30px; border-radius: 40px; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,0.1); background: #fff; border: 2px solid var(--primary-color); }
.mock-search-bar input { flex: 1; border: none; padding: 18px 24px; font-size: 16px; outline: none; }
.mock-search-bar button { border: none; background: var(--primary-color); color: #fff; padding: 0 40px; font-size: 18px; font-weight: bold; cursor: pointer; }

/* 常用网站导航图标 */
.shortcut-grid { display: flex; justify-content: center; gap: 20px; margin-bottom: 40px; flex-wrap: wrap; }
.shortcut { width: 64px; height: 64px; background: #fff; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: bold; color: var(--primary-color); box-shadow: 0 4px 12px rgba(0,0,0,0.05); transition: 0.2s; }
.shortcut:hover { transform: translateY(-5px); box-shadow: 0 8px 16px rgba(0,180,90,0.2); }

.hero-btns { display: flex; justify-content: center; gap: 20px; }

/* 通用模块标题 */
.sec-title { text-align: center; font-size: 32px; margin-bottom: 40px; position: relative; padding-bottom: 15px; }
.sec-title::after { content: ''; width: 60px; height: 4px; background: var(--primary-color); position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); border-radius: 2px; }

/* 核心卖点 */
.feature-list { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 60px; flex-wrap: wrap; }
.feat-item { flex: 1; min-width: 180px; text-align: center; background: var(--card-bg); padding: 30px 20px; border-radius: var(--border-radius); box-shadow: var(--shadow); }
.feat-item img { width: 50px; height: 50px; margin-bottom: 15px; object-fit: contain; }
.feat-item h3 { font-size: 18px; margin-bottom: 10px; }
.feat-item p { font-size: 14px; color: var(--text-muted); }

/* 功能详情区 (图文左右排版) */
.detail-box { display: flex; align-items: center; background: var(--card-bg); margin-bottom: 30px; border-radius: var(--border-radius); overflow: hidden; box-shadow: var(--shadow); }
.detail-box:nth-child(even) { flex-direction: row-reverse; }
.detail-img { flex: 1; padding: 20px; }
.detail-img img { width: 100%; height: auto; box-shadow: 0 0 10px rgba(0,0,0,0.1); }
.detail-text { flex: 1; padding: 40px; }
.detail-text h3 { font-size: 26px; color: var(--primary-color); margin-bottom: 15px; }
.detail-text p { font-size: 16px; color: var(--text-muted); margin-bottom: 20px; }
.detail-data { display: inline-block; background: #e6f7ef; color: var(--primary-color); padding: 5px 15px; border-radius: 20px; font-weight: bold; font-size: 14px; }

/* 浏览器对比 */
.compare-wrap { background: var(--card-bg); border-radius: var(--border-radius); box-shadow: var(--shadow); padding: 30px; overflow-x: auto; }
.compare-table { width: 100%; border-collapse: collapse; text-align: center; }
.compare-table th, .compare-table td { padding: 15px; border-bottom: 1px solid var(--border-color); }
.compare-table th { font-size: 18px; background: #f9f9f9; }
.compare-table td { font-size: 16px; }
.compare-table .highlight { color: var(--primary-color); font-weight: bold; background: #f0fdf5; }

/* 下载版本区 */
.version-cards { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.v-card { flex: 1; min-width: 280px; background: var(--card-bg); border-radius: var(--border-radius); padding: 40px 20px; text-align: center; box-shadow: var(--shadow); border: 2px solid transparent; transition: 0.3s; }
.v-card:hover { border-color: var(--primary-color); transform: translateY(-5px); }
.v-card.main { border-color: var(--primary-color); position: relative; }
.v-card.main::before { content: '推荐'; position: absolute; top: 0; right: 0; background: var(--primary-color); color: #fff; padding: 5px 15px; border-radius: 0 var(--border-radius) 0 var(--border-radius); font-size: 12px; }
.v-card h3 { font-size: 24px; margin-bottom: 15px; }
.v-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 25px; height: 45px; }

/* 数据背书 */
.data-banner { background: var(--primary-color); color: #fff; padding: 60px 20px; text-align: center; display: flex; justify-content: space-around; flex-wrap: wrap; border-radius: var(--border-radius); margin: 60px auto; max-width: 1200px; }
.data-item h4 { font-size: 48px; margin-bottom: 10px; text-shadow: 0 2px 4px rgba(0,0,0,0.2); }
.data-item p { font-size: 18px; opacity: 0.9; }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--card-bg); margin-bottom: 15px; border-radius: 8px; padding: 20px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); border-left: 4px solid var(--primary-color); }
.faq-item h4 { font-size: 18px; margin-bottom: 10px; color: var(--text-main); }
.faq-item p { font-size: 15px; color: var(--text-muted); }

/* Footer */
.footer { background: #333; color: #aaa; text-align: center; padding: 30px 20px; font-size: 14px; margin-top: 40px; }