/* 模仿 js.design 即时设计官网：柔和渐变背景，蓝色主题，毛玻璃半透卡片，hover上浮 */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}
html{
    scroll-behavior: smooth; /* 平滑滚动 美化 */
}
body{
    font-family: system-ui, -apple-system, "Microsoft YaHei", sans-serif;
    /* 即时设计同款柔和渐变背景，固定不动 */
    background: linear-gradient(120deg, #eaf4ff 0%, #fef6ff 50%, #fff7e6 100%);
    background-attachment: fixed;
    color:#333333;
    line-height:1.7;
    min-height: 100vh;
}
.container{
    max-width:1100px;
    margin:0 auto;
    padding:0 24px;
}
/* 顶部导航栏，半透毛玻璃效果 */
header{
    border-bottom:1px solid rgba(229, 231, 235, 0.8);
    padding:16px 0;
    position:sticky;
    top:0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    z-index:99;
}
.header-wrap{
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.logo{
    font-size:22px;
    font-weight:600;
    color:#1677ff;
}
nav a{
    color:#444;
    text-decoration:none;
    margin-left:32px;
    font-size:16px;
    transition: color 0.2s;
}
nav a:hover{
    color:#1677ff;
}
/* 当前页面高亮 */
nav a.active{
    color:#1677ff;
    font-weight:500;
}
/* Hero首屏区域 */
.hero{
    padding:70px 0 40px;
}
/* 主内容区域 */
main{
    padding-bottom:60px;
}
h1{
    font-size:42px;
    font-weight:600;
    margin-bottom:16px;
}
h2{
    font-size:24px;
    font-weight:500;
    margin-bottom:12px;
    color:#222;
}
h3{
    font-size:19px;
    font-weight:500;
    margin-bottom:8px;
    color:#222;
}
p{
    font-size:16px;
    color:#555;
    margin-bottom:16px;
}
/* 即时设计风格卡片：半透毛玻璃，圆角，hover上浮阴影 */
.card{
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(10px);
    padding:32px;
    border-radius:16px;
    margin:24px 0;
    transition: all 0.3s ease;
    border:1px solid rgba(255,255,255,0.6);
    box-shadow: 0 4px 20px rgba(22, 119, 255, 0.06);
}
.card:hover{
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(22,119,255,0.12);
}
/* 作品卡片网格布局 */
.card-grid{
    display:grid;
    grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
    gap:24px;
    margin-top:24px;
}
ul{
    padding-left:22px;
    color:#555;
}
/* 表单样式（留言板） */
form label{
    display:block;
    margin:14px 0 6px;
    color:#333;
    font-weight:500;
}
input,textarea{
    width:100%;
    background:#fff;
    border:1px solid #d0d5dd;
    color:#333;
    padding:12px 14px;
    border-radius:8px;
    font-size:16px;
}
input:focus,textarea:focus{
    border-color:#1677ff;
    outline:none;
    box-shadow:0 0 0 2px rgba(22,119,255,0.2);
}
button{
    margin-top:20px;
    padding:12px 28px;
    background:#1677ff;
    color:#ffffff;
    border:none;
    border-radius:8px;
    font-size:16px;
    cursor:pointer;
    transition:0.25s;
}
button:hover{
    background:#0958d9;
}
footer{
    margin-top:80px;
    padding:24px 0;
    border-top:1px solid rgba(229, 231, 235, 0.8);
    color:#666;
    font-size:14px;
    text-align:center;
}
/* 响应式适配手机 */
@media(max-width:768px){
    .header-wrap{
        flex-direction:column;
        gap:16px;
    }
    nav a{
        margin:0 12px;
    }
    h1{
        font-size:32px;
    }
}