* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "微软雅黑", sans-serif;
}
body {
    background-color: #fffbf0;
    line-height: 1.7;
    color: #333;
}

/* 顶部导航 复古红 */
.nav {
    background-color: #9e2222;
    padding: 16px 20px;
    text-align: center;
    z-index: 10;
}
.nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 14px;
    font-size: 16px;
    padding: 8px 12px;
    border-radius: 4px;
}
.nav a:hover {
    background: rgba(255,255,255,0.18);
}

/* 顶部图文：取消固定高度挤压文字，加宽文字区域，文字完整展示 */
.banner-wrap {
    width: 90%;
    max-width: 1200px;
    margin: 30px auto;
    display: flex;
}
.banner-img {
    width: 55%;
    height: auto;
    min-height: 500px;
    object-fit: cover;
    display: block;
}
.text-mask {
    width: 45%;
    padding: 35px 30px;
    background-color: rgba(0,0,0,0.28);
    color: #fff;
    overflow: visible;
}
.text-mask h2 {
    font-size: 30px;
    margin-bottom: 18px;
    border-bottom: 2px solid #e28080;
    padding-bottom: 8px;
}
.text-mask p {
    font-size: 15px;
    margin-bottom: 12px;
    text-indent: 2em;
    line-height: 1.8;
}

/* 三大板块容器 */
.card-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto 45px;
    display: flex;
    gap: 24px;
}
.card-item {
    flex: 1;
    background: #ffffff;
    padding: 28px 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(158, 34, 34, 0.12);
    transition: all 0.3s ease;
}
.card-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(158, 34, 34, 0.2);
}
.card-item h3 {
    font-size: 24px;
    color: #9e2222;
    margin-bottom: 14px;
    text-align: center;
}
/* 板块总概括文字 */
.card-summary {
    font-size: 14px;
    color: #444;
    margin-bottom: 18px;
    text-align: justify;
}
/* 分项条目 */
.spot-item {
    margin: 10px 0;
    font-size: 14px;
}
.spot-item a {
    color: #9e2222;
    font-weight: bold;
    text-decoration: none;
}
.spot-item a:hover {
    color: #c42c2c;
    text-decoration: underline;
}
.spot-item span {
    color: #555;
    margin-left: 8px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.55);
    z-index: 999;
    align-items: center;
    justify-content: center;
}
.modal-content {
    width: 80%;
    max-width: 480px;
    background: #fff;
    padding: 35px;
    border-radius: 10px;
    text-align: center;
}
.modal-content h4 {
    font-size: 19px;
    color: #9e2222;
    margin-bottom: 22px;
}
.modal-option {
    display: block;
    width: 100%;
    padding: 13px 0;
    margin: 11px 0;
    background: #9e2222;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 16px;
}
.modal-option:hover {
    background: #c42c2c;
}
.close-btn {
    margin-top: 22px;
    padding: 9px 22px;
    background: #bb4444;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}
.close-btn:hover {
    background: #a03333;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 22px;
    background: #9e2222;
    color: #fff;
    font-size: 14px;
}
/* 当前页面导航高亮选中样式 */
.nav a.active {
    background-color: #c42c2c;
    font-weight: bold;
}