/* X007 主题 - 基础变量与重置 */
:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --primary-dark: #0f2744;
    --accent: #ed8936;
    --accent-hover: #dd6b20;
    --text: #333333;
    --text-muted: #666666;
    --text-light: #999999;
    --white: #ffffff;
    --bg: #f5f7fa;
    --bg-light: #fafbfc;
    --border: #e2e8f0;
    --success: #38a169;
    --radius: 4px;
    --radius-lg: 8px;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}
a { color: inherit; text-decoration: none; transition: color 0.2s, background-color 0.2s; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
input, textarea, select { font-family: inherit; outline: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.main { min-height: 50vh; }

/* 通用按钮 */
.btn {
    display: inline-block;
    padding: 10px 24px;
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius);
    font-size: 14px;
    transition: all 0.3s;
    cursor: pointer;
}
.btn:hover {
    background: var(--primary-light);
    color: var(--white);
}
.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}
.btn-accent {
    background: var(--accent);
}
.btn-accent:hover {
    background: var(--accent-hover);
    color: var(--white);
}

/* Section通用样式 */
.section {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    margin-bottom: 50px;
}
.section-title h2 {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 15px;
    font-weight: 600;
}
.section-title p {
    color: var(--text-muted);
    font-size: 16px;
}
.section-title .title-line {
    width: 60px;
    height: 3px;
    background: var(--accent);
    margin: 15px auto 0;
}

/* 页面Banner */
.page-banner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 100px 0 60px;
    text-align: center;
    color: var(--white);
}
.page-banner h1 {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 15px;
}
.page-banner p {
    font-size: 18px;
    opacity: 0.9;
}

/* 网格布局 */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }

/* 响应式 */
@media (max-width: 992px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .section { padding: 50px 0; }
    .section-title h2 { font-size: 26px; }
}