/* 全局样式 */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

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

body {
    font-family: "Microsoft YaHei", "微软雅黑", sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 20px 0;
}

header h1 {
    color: #2563eb;
    font-size: 2.5rem;
    font-weight: 700;
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* 上传区域样式 */
.upload-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.upload-box {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 40px;
    text-align: center;
}

.file-input-container {
    margin-bottom: 20px;
}

.file-input {
    display: none;
}

.file-label {
    display: inline-block;
    padding: 15px 30px;
    background-color: #e6f0ff;
    color: #2563eb;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.1rem;
    margin-bottom: 15px;
}

.file-label:hover {
    background-color: #d1e3ff;
}

.file-label i {
    margin-right: 10px;
    font-size: 1.3rem;
}

.file-name {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #666;
    word-break: break-all;
}

.upload-info {
    margin: 20px 0;
    color: #666;
    font-size: 0.9rem;
}

.upload-button {
    background-color: #2563eb;
    color: white;
    border: none;
    padding: 15px 40px;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    font-weight: 500;
}

.upload-button:hover {
    background-color: #1d4ed8;
}

footer {
    text-align: center;
    padding: 20px 0;
    color: #666;
    font-size: 0.9rem;
}

/* 模态窗口样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: #fff;
    margin: 15% auto;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    width: 80%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: #333;
}

.link-container {
    margin-top: 20px;
}

.copy-link {
    display: flex;
    margin-top: 10px;
}

.copy-link input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px 0 0 6px;
    font-size: 0.9rem;
    color: #333;
}

.copy-link button {
    background-color: #2563eb;
    color: white;
    border: none;
    padding: 0 15px;
    border-radius: 0 6px 6px 0;
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
}

.copy-link button:hover {
    background-color: #1d4ed8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .upload-box {
        padding: 30px 20px;
    }
    
    .modal-content {
        width: 90%;
        margin: 30% auto;
    }
}