* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* 导航 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    padding: 15px 30px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.logo {
    font-size: 1.5em;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 5px;
    transition: background 0.3s;
}

.nav-links a:hover {
    background: rgba(255,255,255,0.2);
}

.hamburger {
    display: none;
    font-size: 1.8em;
    cursor: pointer;
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        background: #1e3c72;
        position: absolute;
        top: 60px;
        right: 0;
        width: 200px;
        padding: 10px;
        border-radius: 0 0 10px 10px;
    }
    .nav-links.active {
        display: flex;
    }
    .hamburger {
        display: block;
    }
}

/* 首页横幅 */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}

.hero h1 {
    font-size: 2.2em;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.hero-buttons a {
    display: inline-block;
    margin: 10px;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s;
}

.btn-primary {
    background: #fff;
    color: #333;
}

.btn-secondary {
    background: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.hero-buttons a:hover {
    transform: scale(1.05);
}

/* 功能特色 */
.features {
    padding: 60px 20px;
    text-align: center;
}

.features h2 {
    font-size: 2em;
    margin-bottom: 40px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: #fff;
    padding: 30px 20px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.feature-card h3 {
    margin-bottom: 15px;
    color: #2a5298;
}

/* 新闻稿列表 */
.article-list {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.article-list h2 {
    text-align: center;
    margin-bottom: 30px;
}

.search-bar {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.search-bar input {
    padding: 10px 15px;
    width: 300px;
    border: 1px solid #ccc;
    border-radius: 30px 0 0 30px;
    outline: none;
}

.search-bar button {
    padding: 10px 20px;
    border: none;
    background: #2a5298;
    color: #fff;
    border-radius: 0 30px 30px 0;
    cursor: pointer;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.article-card {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.article-card h3 {
    color: #1e3c72;
    margin-bottom: 10px;
}

.article-card .date, .article-card .lang {
    display: inline-block;
    margin-top: 10px;
    font-size: 0.9em;
    color: #666;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 30px;
    background: #1e3c72;
    color: #fff;
}

footer a {
    color: #fff;
    text-decoration: underline;
}

/* 页面横幅 */
.page-banner {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #2a5298, #667eea);
    color: #fff;
}

.page-banner h1 {
    font-size: 1.8em;
    margin-bottom: 15px;
}

/* 表单 */
.batch-generator, .pr-generator, .template-list, .history-list {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

form label {
    display: block;
    margin-bottom: 15px;
}

form input, form textarea, form select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 8px;
}

form textarea {
    height: 100px;
}

form button {
    padding: 10px 25px;
    border: none;
    border-radius: 30px;
    background: #2a5298;
    color: #fff;
    cursor: pointer;
    transition: background 0.3s;
}

form button:hover {
    background: #1e3c72;
}

/* 后台 */
.admin-container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.admin-container section {
    margin-bottom: 30px;
}

.admin-container h3 {
    margin-bottom: 15px;
    color: #2a5298;
}

.admin-container ul {
    list-style: none;
}

.admin-container ul li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.admin-container a {
    color: #e74c3c;
    text-decoration: none;
    margin-left: 10px;
}

.success {
    color: #27ae60;
    font-weight: bold;
}

.error {
    color: #e74c3c;
    font-weight: bold;
}