/* 现代短链接页面样式 */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --bg-color: #f7fafc;
    --text-color: #2d3748;
    --border-radius: 12px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    animation: slideUp 0.6s ease-out;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    font-weight: bold;
    animation: pulse 2s infinite;
}

.title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-color);
}

.subtitle {
    font-size: 16px;
    color: #718096;
    margin-bottom: 30px;
}

.status-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
}

.status-icon.success {
    background: var(--success-color);
}

.status-icon.error {
    background: var(--error-color);
}

.status-icon.warning {
    background: var(--warning-color);
}

.status-icon.loading {
    background: var(--primary-color);
    animation: spin 1s linear infinite;
}

.message {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.message.success {
    color: var(--success-color);
}

.message.error {
    color: var(--error-color);
}

.message.warning {
    color: var(--warning-color);
}

.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60% {
        content: '...';
    }
    80%, 100% {
        content: '';
    }
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
    margin: 10px 5px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--text-color);
}

.btn-secondary:hover {
    background: #cbd5e0;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin: 20px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    animation: progress 2s ease-in-out infinite;
}

@keyframes progress {
    0% {
        width: 0%;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 100%;
    }
}

.browser-guide {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    text-align: center;
    margin: 0 auto;
    border: 1px solid #e2e8f0;
    animation: slideUp 0.3s ease-out;
}

.browser-guide h3 {
    color: #2d3748;
    margin-bottom: 16px;
    font-size: 1.25rem;
    font-weight: 600;
}

.browser-guide p {
    color: #4a5568;
    margin-bottom: 20px;
    line-height: 1.5;
}

.browser-guide img {
    max-width: 100%;
    height: auto;
    margin: 16px 0;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.browser-guide .close-btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.browser-guide .close-btn:hover {
    background: #5a6fd8;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .card {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .title {
        font-size: 22px;
    }
    
    .subtitle {
        font-size: 14px;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-down {
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}