* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Inter", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif;
}

html, body {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

input, button {
    outline: none;
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    font-size: 15px;
    transition: all 0.3s ease;
}

input {
    padding: 16px 22px;
    width: 100%;
    background: rgba(255,255,255,0.05);
    color: #fff;
    backdrop-filter: blur(10px);
}

input::placeholder {
    color: rgba(255,255,255,0.4);
}

input:focus {
    border-color: #667eea;
    background: rgba(255,255,255,0.1);
    box-shadow: 0 0 30px rgba(102, 126, 234, 0.3);
}

button {
    padding: 16px 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 30px 20px;
}

.text-center {
    text-align: center;
}

.card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 45px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.2);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 22px;
}

.grid-6 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
}

.tip-red {
    color: #ff6b6b;
    text-align: center;
    margin: 15px 0;
    font-size: 14px;
    font-weight: 500;
}

.tip-green {
    color: #4ade80;
    text-align: center;
    margin: 15px 0;
    font-size: 14px;
    font-weight: 500;
}

.title {
    font-size: 28px;
    margin-bottom: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sub-title {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 18px;
}

.logout-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.logout-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.4); }
    50% { box-shadow: 0 0 40px rgba(102, 126, 234, 0.7); }
}

@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-glow {
    animation: glow 3s ease-in-out infinite;
}

.gradient-bg {
    background: linear-gradient(-45deg, #0f0c29, #302b63, #24243e, #0f0c29);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}