@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&family=Orbitron:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --accent-color: #0ea5e9;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #0f172a;
    --darker-color: #020617;
    --light-color: #f1f5f9;
    --gray-color: #94a3b8;
    --gradient-start: #6366f1;
    --gradient-end: #8b5cf6;
    --border-radius: 12px;
    --box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.25), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', Arial, sans-serif;
    background: linear-gradient(135deg, var(--darker-color) 0%, var(--dark-color) 100%);
    color: var(--light-color);
    line-height: 1.6;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* 背景粒子效果 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 40% 40%, rgba(14, 165, 233, 0.1) 0%, transparent 20%);
    z-index: -1;
    animation: float 20s infinite linear;
}

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

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.1);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    z-index: 10;
}

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

header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    color: white;
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

header::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 70%);
    transform: rotate(30deg);
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.8rem;
    font-weight: 700;
    margin: 0 0 10px 0;
    position: relative;
    letter-spacing: 1px;
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    background: linear-gradient(90deg, #fff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 8px;
    position: relative;
    color: #cbd5e1;
}

main {
    padding: 40px;
}

section {
    margin-bottom: 40px;
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: #e2e8f0;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--accent-color);
    position: relative;
    font-family: 'Orbitron', sans-serif;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.form-container {
    background: rgba(30, 41, 59, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
    margin-bottom: 30px;
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    overflow: hidden;
}

.form-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.form-group {
    margin-bottom: 30px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #e2e8f0;
    font-size: 1.1rem;
}

.form-control {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    transition: var(--transition);
    background: rgba(15, 23, 42, 0.5);
    color: #f1f5f9;
    backdrop-filter: blur(4px);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.2);
    background: rgba(15, 23, 42, 0.7);
}

.form-text {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-top: 8px;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    position: relative;
    overflow: hidden;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(0);
}

.btn-block {
    display: block;
    width: 100%;
}

.question {
    background: rgba(30, 41, 59, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin-bottom: 25px;
    transition: var(--transition);
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    overflow: hidden;
}

.question::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.question:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.3);
    border-color: rgba(99, 102, 241, 0.3);
}

.question-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.question-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin-right: 20px;
    font-family: 'Orbitron', sans-serif;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.question-title {
    font-size: 1.2rem;
    font-weight: 500;
    color: #e2e8f0;
    flex: 1;
}

.options {
    display: grid;
    gap: 15px;
}

.option {
    display: flex;
    align-items: flex-start;
    padding: 20px;
    border: 2px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: rgba(15, 23, 42, 0.3);
}

.option:hover {
    border-color: var(--accent-color);
    background: rgba(14, 165, 233, 0.1);
    transform: translateX(5px);
}

.option input {
    margin-right: 15px;
    margin-top: 3px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.option label {
    cursor: pointer;
    font-weight: 400;
    flex: 1;
    color: #cbd5e1;
}

.option input:checked + label {
    font-weight: 500;
    color: #e2e8f0;
}

.option.selected {
    border-color: var(--accent-color);
    background: rgba(14, 165, 233, 0.2);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

.result-container {
    text-align: center;
    padding: 50px 20px;
}

.result-icon {
    font-size: 5rem;
    margin-bottom: 30px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.result-success .result-icon {
    color: var(--success-color);
    text-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

.result-failure .result-icon {
    color: var(--danger-color);
    text-shadow: 0 0 20px rgba(239, 68, 68, 0.5);
}

.candidate-info {
    background: rgba(30, 41, 59, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    overflow: hidden;
}

.candidate-info::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    text-align: left;
}

.info-item {
    padding: 20px;
    border-radius: var(--border-radius);
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-3px);
    border-color: rgba(99, 102, 241, 0.3);
}

.info-label {
    font-size: 0.95rem;
    color: var(--gray-color);
    margin-bottom: 8px;
    font-weight: 500;
}

.info-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: #e2e8f0;
}

.score-display {
    font-size: 6rem;
    font-weight: 800;
    margin: 30px 0;
    font-family: 'Orbitron', sans-serif;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    animation: glow 2s infinite alternate;
}

@keyframes glow {
    from { text-shadow: 0 0 10px rgba(99, 102, 241, 0.5); }
    to { text-shadow: 0 0 30px rgba(99, 102, 241, 0.8), 0 0 60px rgba(99, 102, 241, 0.6); }
}

.query-code-container {
    background: rgba(30, 41, 59, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 40px;
    margin: 40px auto;
    max-width: 550px;
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    overflow: hidden;
}

.query-code-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.query-code-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    color: #e2e8f0;
    font-family: 'Orbitron', sans-serif;
}

.query-code {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: 6px;
    color: #e2e8f0;
    background: rgba(15, 23, 42, 0.7);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 2px dashed var(--accent-color);
    margin: 25px 0;
    font-family: 'Orbitron', sans-serif;
    text-shadow: 0 0 15px rgba(14, 165, 233, 0.5);
    animation: codeGlow 3s infinite alternate;
}

@keyframes codeGlow {
    from { box-shadow: 0 0 10px rgba(14, 165, 233, 0.3); }
    to { box-shadow: 0 0 30px rgba(14, 165, 233, 0.6), 0 0 60px rgba(14, 165, 233, 0.4); }
}

.query-code-note {
    font-size: 1rem;
    color: var(--gray-color);
    margin-top: 15px;
}

.status-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'Orbitron', sans-serif;
}

.status-passed {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

.status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-color);
    border: 1px solid rgba(239, 68, 68, 0.3);
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.2);
}

footer {
    text-align: center;
    padding: 30px 40px;
    background: rgba(15, 23, 42, 0.7);
    color: var(--gray-color);
    font-size: 1rem;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
}

.progress-bar {
    height: 10px;
    background: rgba(148, 163, 184, 0.1);
    border-radius: 5px;
    margin: 25px 0;
    overflow: hidden;
    position: relative;
}

.progress-bar::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    opacity: 0.2;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    border-radius: 5px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressShine 2s infinite;
}

@keyframes progressShine {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* 错误提示样式 */
.alert-error {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fecaca;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.alert-error i {
    font-size: 1.5rem;
    margin-right: 15px;
}

/* 登录容器样式 */
.login-container {
    max-width: 500px;
    margin: 50px auto;
    padding: 50px;
    background: rgba(30, 41, 59, 0.6);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    text-align: center;
    border: 1px solid rgba(148, 163, 184, 0.1);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
}

.login-icon {
    font-size: 4rem;
    color: var(--accent-color);
    margin-bottom: 30px;
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.login-header h1 {
    margin: 0 0 15px 0;
    color: #e2e8f0;
    font-family: 'Orbitron', sans-serif;
}

.login-header p {
    color: var(--gray-color);
    margin: 0 0 30px 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        border-radius: var(--border-radius);
    }
    
    header {
        padding: 30px 20px;
    }
    
    header h1 {
        font-size: 2.2rem;
    }
    
    main {
        padding: 25px;
    }
    
    .form-container, .question, .candidate-info, .query-code-container {
        padding: 25px;
    }
    
    .question-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .question-number {
        margin-bottom: 15px;
    }
    
    .score-display {
        font-size: 4rem;
    }
    
    .query-code {
        font-size: 2rem;
        letter-spacing: 3px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .login-container {
        padding: 30px 20px;
        margin: 20px auto;
    }
}