/* 全局基础样式 */
:root {
    --primary-pink: #ffb6c1;
    --dark-pink: #f07e9e;
    --soft-white: #fffafa;
    --text-color: #7a4b64;
    --accent-gold: #ffeb3b;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background-color: #fff0f5;
    background-image: radial-gradient(var(--primary-pink) 1px, transparent 1px);
    background-size: 30px 30px;
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

/* 导航栏 */
header {
    background: linear-gradient(135deg, #ffa6c9, #ffc0cb);
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    margin: 0 25px;
    transition: 0.3s;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

nav a:hover {
    color: var(--accent-gold);
}

/* 容器与区块 */
.container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 20px;
}

.card {
    background: white;
    border-radius: 25px;
    padding: 40px;
    box-shadow: 0 10px 20px rgba(255,182,193,0.3);
    border: 3px solid white;
    outline: 2px dashed var(--primary-pink);
    outline-offset: -10px;
    text-align: center;
}

h1, h2 {
    color: var(--dark-pink);
    text-shadow: 2px 2px 0px white;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    background: var(--dark-pink);
    color: white;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
    border: none;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(240,126,158,0.4);
}

.btn:hover {
    transform: translateY(-3px);
    background: #ff6b91;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 40px 0;
    font-size: 0.9em;
    color: #a88194;
}