/* ============================================
   CSS Reset / Normalize
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: #1a5276;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #2980b9;
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font: inherit;
}

input, textarea, select {
    font: inherit;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 10px 15px;
    width: 100%;
    transition: border-color 0.3s;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #2980b9;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: #1a2a3a;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 通用按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #1a5276, #2980b9);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #154360, #1f6da0);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(41, 128, 185, 0.4);
}

.btn-outline {
    background: transparent;
    color: #2980b9;
    border: 2px solid #2980b9;
}

.btn-outline:hover {
    background: #2980b9;
    color: #fff;
}

/* 通用section标题 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    color: #1a2a3a;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #2980b9;
}

.section-title p {
    color: #666;
    font-size: 1.1rem;
    margin-top: 15px;
}

/* 面包屑导航 */
.breadcrumb {
    background: #f5f7fa;
    padding: 15px 0;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: #666;
}

.breadcrumb span {
    color: #2980b9;
    margin-left: 5px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin: 40px 0;
}

.pagination a, .pagination span {
    padding: 8px 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    color: #666;
    transition: all 0.3s;
}

.pagination a:hover, .pagination .current {
    background: #2980b9;
    color: #fff;
    border-color: #2980b9;
}