* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
}
a {
    text-decoration: none;
    color: #333;
}
a:hover {
    color: #d48b47;
}
ul, li {
    list-style: none;
}
img {
    max-width: 100%;
    display: block;
}
body {
    background-color: #fff;
    color: #333;
    line-height: 1.6;
}
.wrap {
    width: 1200px;
    margin: 0 auto;
}

/* ========== 头部导航 ========== */
.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}
.logo {
    font-size: 32px;
    font-weight: bold;
    color: #000;
}
.nav-main {
    display: flex;
    gap: 28px;
    align-items: center;
}
.nav-main a {
    font-size: 15px;
}
.nav-main a.active {
    color: #d48b47;
}
.btn-sample {
    background: #f6e3cd;
    color: #b46b28 !important;
    padding: 6px 16px;
    border-radius: 22px;
}

/* ========== 子导航 ========== */
.sub-nav {
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    margin-bottom: 30px;
}
.sub-nav a {
    margin-right: 14px;
    font-size: 14px;
    color: #666;
}

/* ========== 内容容器 ========== */
.container {
    min-height: 500px;
    padding-bottom: 40px;
}
.page-title {
    font-size: 26px;
    margin-bottom: 24px;
    padding-left: 10px;
    border-left: 4px solid #d48b47;
}

/* ========== 产品列表网格（重点！改成多列整齐排版） ========== */
.product-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.product-item {
    border: 1px solid #eee;
    border-radius: 6px;
    overflow: hidden;
    transition: 0.3s;
}
.product-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}
.product-info {
    padding: 12px;
}
.product-info h3 {
    font-size: 16px;
    margin-bottom: 6px;
}
.product-info p {
    font-size: 13px;
    color: #666;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.product-info .more {
    font-size:14px;
    color:#0066cc;
}

/* ========== 分页样式（和page_html函数配套） ========== */
.page {
    margin-top: 40px;
    text-align: center;
}
.page a, .page span {
    display: inline-block;
    padding: 5px 12px;
    margin: 0 4px;
    border: 1px solid #ccc;
    border-radius: 3px;
}
.page .current {
    background-color: #d48b47;
    color: #fff;
    border-color: #d48b47;
}

/* ========== 留言表单样式（message.php） ========== */
.msg-form {
    width: 600px;
    margin: 0 auto;
}
.msg-form .item {
    margin-bottom:16px;
}
.msg-form label{
    display:block;margin-bottom:6px;color:#555;
}
.msg-form input,.msg-form textarea{
    width:100%;padding:10px;border:1px solid #ccc;border-radius:4px;font-size:14px;
}
.msg-form textarea{height:120px;resize:none;}
.code-row{display:flex;gap:10px;}
.code-row input{flex:1;}
.code-box{padding:0 16px;background:#2563eb;color:#fff;line-height:42px;letter-spacing:4px;font-size:20px;border-radius:4px;cursor:pointer;user-select:none;}
.msg-form button{width:100%;padding:12px;background:#d48b47;color:#fff;border:none;border-radius:4px;font-size:16px;cursor:pointer;}
.msg-form button:hover{background:#c27b38;}
.tip{margin-bottom:16px;text-align:center;font-size:16px;}

/* ========== 底部版权 ========== */
.footer {
    padding: 30px 0;
    background: #f5f5f5;
    text-align: center;
    font-size:14px;
    color:#666;
    margin-top:40px;
}
body {
    margin: 0;
    padding: 0;
    /* 垂直渐变：从上 #0f3460 深蓝 到下 #53a8b6 浅蓝，你可以自己改色值 */
    background: linear-gradient(to bottom, #0f3460, #53a8b6);
    /* 关键：让渐变铺满整个可视区域，内容不够长时也撑满屏幕高度 */
    min-height: 100vh;
    background-attachment: fixed; /* 滚动页面时背景固定不动（可选，去掉就是跟着内容滚动） */
    background-repeat: no-repeat;
    background-size: 100% 100%;
}