@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600&display=swap');

:root {
    --primary-color: #ffffff;
    --accent-color: #00d4ff;
    --bg-overlay: rgba(0, 0, 0, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--primary-color);
    background: #000;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('bg-city.png') no-repeat center center/cover;
    z-index: -1;
    filter: brightness(0.7);
    animation: zoomBackground 20s infinite alternate ease-in-out;
}

@keyframes zoomBackground {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.8) 100%);
    z-index: -1;
}

.content {
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 3rem 4rem;
    border-radius: 24px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    max-width: 90%;
    animation: fadeIn 1.2s ease-out;
}

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

h1 {
    font-size: 2.2rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 1.8rem;
    font-weight: 300;
    color: #ccc;
    margin-bottom: 2rem;
}

.timer-box {
    font-size: 1.2rem;
    color: #999;
    margin-top: 1rem;
}

#countdown {
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    margin-right: 4px;
}

.action-box {
    margin-top: 3rem;
}

.login-button {
    background: #ffffff;
    color: #000;
    border: none;
    padding: 0.8rem 2.5rem;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 400;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.login-button:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

footer {
    position: absolute;
    bottom: 2rem;
    width: 100%;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.5px;
}

footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

footer a:hover {
    color: var(--accent-color);
}

.AQ {
    display: inline-block;
}

/* 移动端适配 */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 1.4rem; }
    .content { padding: 2rem; }
}