.navbar {
    width: 100%;
    background: #fff;
    color: #222;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 52px;
    box-sizing: border-box;
    box-shadow: 0 2px 8px #0001;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
}
.navbar-title {
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 1px;
    color: #222;
}
.navbar-links {
    display: flex;
    gap: 18px;
    align-items: center;
    height: 100%;
}
.navbar-links a {
    color: #222;
    text-decoration: none;
    font-size: 15px;
    padding: 6px 12px;
    border-radius: 5px;
    transition: background 0.15s, color 0.15s;
    display: flex;
    align-items: center;
    height: 40px;
}
.navbar-links a:hover {
    background: #f0f0f0;
    color: #1976d2;
}
.container {
    margin-top: 92px;
}
body { font-family: Arial, sans-serif; background: #f4f4f4; margin: 0; padding: 0; }
.container { max-width: 500px; margin: 40px auto; background: #fff; border-radius: 10px; box-shadow: 0 2px 8px #0001; padding: 32px 24px; }

@media (max-width: 600px) {
    .navbar {
        padding: 0 10px;
        height: 46px;
    }
    .navbar-title {
        font-size: 16px;
    }
    .navbar-links a {
        font-size: 13px;
        padding: 4px 8px;
        height: 32px;
    }
    .container {
        margin-top: 64px;
        max-width: 100vw;
        border-radius: 0;
        box-shadow: none;
        padding: 16px 4vw;
    }
    h1 {
        font-size: 20px;
    }
    .upload-area {
        padding: 18px 0;
        font-size: 15px;
    }
    .result pre {
        font-size: 13px;
        padding: 8px;
        white-space: pre-wrap;
        word-break: break-all;
    }
    #video {
        width: 100% !important;
        height: auto !important;
        max-width: 320px;
    }
    .footer {
        font-size: 12px;
        padding: 0 8px;
        word-break: break-all;
    }
}
h1 { text-align: center; color: #333; }
.upload-area { border: 2px dashed #aaa; border-radius: 8px; padding: 32px 0; text-align: center; color: #888; cursor: pointer; margin-bottom: 24px; background: #fafafa; }
.upload-area.dragover { border-color: #2196f3; color: #2196f3; background: #e3f2fd; }
#fileInput { display: none; }
.result { margin-top: 24px; text-align: center; }
.result pre { background: #f0f0f0; padding: 12px; border-radius: 6px; word-break: break-all; }
.error { color: #d32f2f; text-align: center; margin-top: 16px; }
.footer { text-align: center; color: #aaa; margin-top: 40px; font-size: 13px; }