:root {
    --primary-color: #161823;
    --secondary-color: #FE2C55;
    --background-color: #f1f2f6;
    --card-background: #ffffff;
    --text-color: #333;
    --text-light: #777;
    --border-color: #e0e0e0;
    --font-family: 'Noto Sans SC', sans-serif;
}

body {
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    width: 100%;
    max-width: 600px;
    background-color: var(--card-background);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 30px 40px;
    box-sizing: border-box;
}

header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

header h1 {
    color: var(--primary-color);
    margin: 0;
}

header p {
    color: var(--text-light);
    margin: 5px 0 0;
}

.input-area {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

textarea {
    width: 100%;
    height: 100px;
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-family: var(--font-family);
    font-size: 16px;
    resize: vertical;
    box-sizing: border-box;
    transition: border-color 0.3s, box-shadow 0.3s;
}

textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.2);
}

.button, button#parse-button {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    font-weight: 500;
    color: #fff;
    background: linear-gradient(45deg, #FF4B2B, #FF416C);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.3s;
    text-align: center;
    text-decoration: none;
    box-sizing: border-box;
}

button#parse-button:hover, .button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 65, 108, 0.3);
}

.hidden {
    display: none !important;
}

#loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 30px 0;
    color: var(--text-light);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 10px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#error-message {
    margin: 20px 0;
    padding: 15px;
    background-color: #ffebee;
    color: #c62828;
    border-radius: 8px;
    text-align: center;
}

#result-container {
    margin-top: 30px;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.video-wrapper {
    margin-bottom: 20px;
}

#video-player {
    width: 100%;
    border-radius: 8px;
    background-color: #000;
}

#download-button {
    margin-top: 15px;
    display: block;
}

.video-info {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.video-info h2 {
    margin-top: 0;
    color: var(--primary-color);
}

.video-info p {
    margin: 8px 0;
    line-height: 1.6;
}

.video-info p strong {
    color: var(--primary-color);
}

#video-stats span {
    margin-right: 15px;
}

footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 14px;
}

/* 新增链接区域的样式 */
.link-info {
    margin-top: 25px;
    margin-bottom: 25px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.link-info h3 {
    margin: 0 0 10px 0;
    font-size: 16px;
    color: var(--primary-color);
}

.link-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

#original-link {
    flex-grow: 1;
    padding: 10px;
    background-color: #fff;
    border-radius: 6px;
    border: 1px solid #ddd;
    font-size: 14px;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; /* 超出部分显示省略号 */
}

#copy-button {
    flex-shrink: 0;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--secondary-color);
    background-color: #fff;
    border: 1px solid var(--secondary-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

#copy-button:hover {
    background-color: var(--secondary-color);
    color: #fff;
    transform: translateY(0); /* 覆盖全局按钮的 hover 效果 */
    box-shadow: none; /* 覆盖全局按钮的 hover 效果 */
}

#copy-button:active {
    transform: scale(0.95);
}