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

/* 主题变量 */
:root[data-theme="light"] {
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.95);
    --text-primary: #333;
    --text-secondary: #666;
    --border-color: #e1e1e1;
    --input-bg: white;
    --input-border: #e1e1e1;
    --input-focus-border: #0062ff;
    --input-focus-shadow: rgba(0, 98, 255, 0.1);
    --btn-bg: linear-gradient(135deg, #0062ff 0%, #0085ff 100%);
    --btn-shadow: rgba(0, 98, 255, 0.2);
    --btn-hover-shadow: rgba(0, 98, 255, 0.3);
    --card-shadow: rgba(0, 0, 0, 0.1);
}

:root[data-theme="dark"] {
    --bg-gradient: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --card-bg: rgba(30, 41, 59, 0.95);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --input-bg: #1e293b;
    --input-border: #334155;
    --input-focus-border: #3b82f6;
    --input-focus-shadow: rgba(59, 130, 246, 0.1);
    --btn-bg: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    --btn-shadow: rgba(59, 130, 246, 0.2);
    --btn-hover-shadow: rgba(59, 130, 246, 0.3);
    --card-shadow: rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 100%;
    max-width: 420px;
    margin: 0 20px;
    perspective: 1000px;
    padding: 40px 0;
}

.login-form {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--card-shadow);
    width: 100%;
    backdrop-filter: blur(8px);
    animation: fadeIn 0.6s ease-out;
    margin: 40px 0;
}

.logo-container {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.logo-icon {
    width: 56px;
    height: 56px;
    margin-right: 12px;
    filter: drop-shadow(0 4px 12px var(--btn-shadow));
}

.logo-text {
    font-size: 28px;
    font-weight: bold;
    background: var(--btn-bg);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.logo-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 500;
}

.form-group {
    margin-bottom: 2rem;
    position: relative;
}

.form-group:last-of-type {
    margin-bottom: 2.5rem;
}

.input-wrapper {
    position: relative;
}

.input-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

input {
    width: 100%;
    padding: 0.875rem 1rem;
    padding-right: 2.5rem;
    border: 2px solid var(--input-border);
    border-radius: 12px;
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--input-bg);
    transition: all 0.2s ease;
}

input:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 4px var(--input-focus-shadow);
}

.primary-button {
    width: 100%;
    padding: 1rem;
    background: var(--btn-bg);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px var(--btn-shadow);
}

.primary-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--btn-hover-shadow);
}

.primary-button:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px var(--btn-shadow);
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 2rem;
}

.remember-me input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin: 0;
    cursor: pointer;
    border: 2px solid var(--input-border);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.remember-me input[type="checkbox"]:checked {
    background-color: var(--input-focus-border);
    border-color: var(--input-focus-border);
}

.remember-me:hover input[type="checkbox"] {
    border-color: var(--input-focus-border);
}

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

@media (max-width: 480px) {
    .container {
        margin: 16px;
    }

    .login-form {
        padding: 2rem;
    }
    
    .logo-icon {
        width: 48px;
        height: 48px;
    }
    
    .logo-text {
        font-size: 24px;
    }

    .logo-subtitle {
        font-size: 14px;
    }
}

@media (max-height: 700px) {
    .container {
        padding: 20px 0;
    }
    
    .login-form {
        margin: 20px 0;
        padding: 2rem;
    }
}

@media (min-height: 900px) {
    .container {
        padding: 60px 0;
    }
    
    .login-form {
        margin: 60px 0;
    }
}

/* 在文件末尾添加通知样式 */
.notification {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    background: var(--card-bg);
    box-shadow: 0 4px 12px var(--card-shadow);
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 300px;
    border: 1px solid var(--border-color);
}

.notification::before {
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
}

.notification.success {
    border-left: 4px solid #10b981;
}

.notification.success::before {
    content: '\f00c';
    color: #10b981;
}

.notification.error {
    border-left: 4px solid #ef4444;
}

.notification.error::before {
    content: '\f00d';
    color: #ef4444;
}

.notification-message {
    color: var(--text-primary);
    font-size: 0.875rem;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}