/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding-top: 80px; /* 为固定导航栏留出空间 */
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

.nav-links a:hover {
    color: #ffd700;
}

/* 汉堡菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 2rem 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.6;
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(45deg, #ff6b6b, #ffa500);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(45deg, #4ecdc4, #44a08d);
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: linear-gradient(45deg, #a8edea, #fed6e3);
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

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

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
    padding-left: 3rem;
    padding-right: 3rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(45deg, #ffd700, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #ffd700;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
    min-width: 140px;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(45deg, #ffd700, #ff6b6b);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-brain-container {
    position: relative;
    z-index: 2;
}

.ai-brain {
    font-size: 8rem;
    animation: pulse 2s ease-in-out infinite;
}

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

.brain-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border: 2px solid rgba(255, 215, 0, 0.3);
    border-radius: 50%;
    animation: pulse-ring 2s ease-in-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.element {
    position: absolute;
    font-size: 2rem;
    animation: float-element 4s ease-in-out infinite;
}

.element-1 { top: 10%; left: 10%; animation-delay: 0s; }
.element-2 { top: 20%; right: 15%; animation-delay: 1s; }
.element-3 { bottom: 30%; left: 20%; animation-delay: 2s; }
.element-4 { bottom: 20%; right: 10%; animation-delay: 3s; }

@keyframes float-element {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(10deg); }
}

/* 功能特色 */
.features {
    padding: 5rem 0;
    background: rgba(255, 255, 255, 0.05);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-card:hover::before {
    transform: translateX(100%);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-highlight {
    display: inline-block;
    background: linear-gradient(45deg, #ffd700, #ff6b6b);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

/* 工作流程 */
.workflow {
    padding: 5rem 0;
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, #ffd700, #ff6b6b);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.step h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.step p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* 关于我们 */
.about {
    padding: 5rem 0;
    background: rgba(255, 255, 255, 0.05);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.about-text p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.about-features {
    margin-bottom: 2rem;
}

.about-feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.about-feature-icon {
    font-size: 1.5rem;
    margin-right: 1rem;
    width: 40px;
    text-align: center;
}

.about-feature-item span {
    color: white;
    font-weight: 500;
}

.warning-card {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: 15px;
    padding: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.warning-icon {
    font-size: 1.5rem;
    color: #ffc107;
    flex-shrink: 0;
}

.warning-text {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.about-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 400px;
}

.floating-circles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(255, 215, 0, 0.3), rgba(255, 107, 107, 0.3));
    animation: float-circle 6s ease-in-out infinite;
}

.circle-1 { width: 80px; height: 80px; top: 10%; left: 10%; animation-delay: 0s; }
.circle-2 { width: 60px; height: 60px; top: 20%; right: 20%; animation-delay: 2s; }
.circle-3 { width: 100px; height: 100px; bottom: 20%; left: 20%; animation-delay: 4s; }
.circle-4 { width: 70px; height: 70px; bottom: 30%; right: 10%; animation-delay: 6s; }
.circle-5 { width: 90px; height: 90px; top: 50%; left: 50%; animation-delay: 1s; }

@keyframes float-circle {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-30px) rotate(180deg); }
}

.center-symbol {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 1rem;
}

.health-symbol, .tech-symbol, .care-symbol {
    font-size: 3rem;
    animation: symbol-float 3s ease-in-out infinite;
}

.tech-symbol { animation-delay: 1s; }
.care-symbol { animation-delay: 2s; }

@keyframes symbol-float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* 页脚 */
.footer {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p, .footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    line-height: 1.6;
}

.footer-section a:hover {
    color: #ffd700;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 导航栏响应式 */
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 2rem;
        transition: left 0.3s ease;
        z-index: 999;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 1rem 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 1rem 2rem;
        display: block;
        border-radius: 10px;
        transition: all 0.3s;
    }
    
    .nav-links a:hover {
        background: rgba(255, 215, 0, 0.2);
        color: #ffd700;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
        margin: 2rem 0;
    }
    
    .stat-item {
        padding: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 280px;
        padding: 1.2rem 2rem;
        font-size: 1.1rem;
    }
    
    .hero-visual {
        margin-top: 2rem;
    }
    
    .ai-brain {
        font-size: 6rem;
    }
    
    .brain-pulse {
        width: 150px;
        height: 150px;
    }
    
    .element {
        font-size: 1.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
        padding: 0 1rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .workflow-steps {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .step {
        padding: 1.5rem;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .step h3 {
        font-size: 1.2rem;
    }
    
    .step p {
        font-size: 0.9rem;
    }
    
    .about-features {
        gap: 1rem;
    }
    
    .about-feature-item {
        padding: 0.8rem;
    }
    
    .about-feature-icon {
        font-size: 1.2rem;
    }
    
    .about-feature-item span {
        font-size: 0.9rem;
    }
    
    .warning-card {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }
    
    .warning-text {
        font-size: 0.9rem;
    }
    
    .about-visual {
        height: 300px;
    }
    
    .center-symbol {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .health-symbol, .tech-symbol, .care-symbol {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }
    
    .footer-section h3 {
        font-size: 1.1rem;
    }
    
    .footer-section p, .footer-section a {
        font-size: 0.9rem;
    }
    
    /* 表单页面响应式 */
    .form-container {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .form-title {
        font-size: 1.8rem;
    }
    
    /* 上传页面响应式 */
    .upload-container {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .upload-header h1 {
        font-size: 2rem;
    }
    
    .upload-header p {
        font-size: 1rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .upload-text {
        font-size: 1.1rem;
    }
    
    .upload-hint {
        font-size: 0.9rem;
    }
    
    .upload-tips {
        max-width: 100%;
        padding: 1rem;
    }
    
    .upload-tips h4 {
        font-size: 1rem;
    }
    
    .upload-tips li {
        font-size: 0.9rem;
    }
    
    .upload-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .info-card {
        padding: 1.5rem;
    }
    
    .card-header h3 {
        font-size: 1.2rem;
    }
    
    .feature-item {
        font-size: 0.9rem;
    }
    
    /* 结果页面响应式 */
    .result-container {
        margin: 1rem;
        padding: 1rem;
    }
    
    .result-header {
        padding: 2rem 1rem;
    }
    
    .result-title {
        font-size: 2rem;
    }
    
    .result-subtitle {
        font-size: 1rem;
    }
    
    .result-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .result-image, .result-details {
        padding: 1.5rem;
    }
    
    .analysis-section {
        padding: 2rem 1.5rem;
    }
    
    .analysis-title {
        font-size: 1.3rem;
    }
    
    .analysis-content {
        padding: 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn-group {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        padding: 1rem 2rem;
    }
    
    /* 管理后台响应式 */
    .admin-container {
        margin: 1rem;
        padding: 1rem;
    }
    
    .admin-header {
        padding: 1.5rem;
    }
    
    .admin-title {
        font-size: 2rem;
    }
    
    .admin-subtitle {
        font-size: 1rem;
    }
    
    .admin-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .admin-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .tab-button {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .tab-content {
        padding: 1.5rem;
    }
    
    .data-table {
        font-size: 0.8rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .btn-small {
        padding: 0.5rem;
        font-size: 0.8rem;
    }
    
    .record-image {
        width: 50px;
        height: 50px;
    }
    
    /* 用户控制台响应式 */
    .dashboard-container {
        margin: 1rem;
        padding: 1rem;
    }
    
    .dashboard-header {
        padding: 1.5rem;
    }
    
    .dashboard-title {
        font-size: 2rem;
    }
    
    .dashboard-subtitle {
        font-size: 1rem;
    }
    
    .user-info {
        padding: 1.5rem;
    }
    
    .user-info h3 {
        font-size: 1.3rem;
    }
    
    .user-details {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .user-detail label {
        font-size: 0.8rem;
    }
    
    .user-detail span {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 0.9rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 1rem 1.5rem;
        font-size: 1rem;
        min-width: 120px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .feature-card h3 {
        font-size: 1.1rem;
    }
    
    .feature-card p {
        font-size: 0.9rem;
    }
    
    .step {
        padding: 1rem;
    }
    
    .step h3 {
        font-size: 1.1rem;
    }
    
    .step p {
        font-size: 0.8rem;
    }
    
    .about-text h2 {
        font-size: 1.8rem;
    }
    
    .about-text p {
        font-size: 0.9rem;
    }
    
    .about-feature-item span {
        font-size: 0.8rem;
    }
    
    .warning-text {
        font-size: 0.8rem;
    }
    
    .ai-brain {
        font-size: 5rem;
    }
    
    .brain-pulse {
        width: 120px;
        height: 120px;
    }
    
    .element {
        font-size: 1.2rem;
    }
    
    /* 小屏幕额外优化 */
    .upload-container,
    .form-container,
    .result-container,
    .admin-container,
    .dashboard-container {
        margin: 0.5rem;
        padding: 1rem;
    }
    
    .upload-header h1,
    .form-title,
    .result-title,
    .admin-title,
    .dashboard-title {
        font-size: 1.8rem;
    }
    
    .upload-area {
        padding: 1.5rem 1rem;
    }
    
    .upload-text {
        font-size: 1rem;
    }
    
    .upload-hint {
        font-size: 0.8rem;
    }
    
    .info-card {
        padding: 1rem;
    }
    
    .card-header h3 {
        font-size: 1.1rem;
    }
    
    .feature-item {
        font-size: 0.8rem;
    }
    
    .result-header {
        padding: 1.5rem 1rem;
    }
    
    .result-image, 
    .result-details,
    .analysis-section {
        padding: 1rem;
    }
    
    .analysis-title {
        font-size: 1.2rem;
    }
    
    .analysis-content {
        padding: 1rem;
        font-size: 0.8rem;
    }
    
    .admin-header,
    .dashboard-header {
        padding: 1rem;
    }
    
    .admin-title,
    .dashboard-title {
        font-size: 1.8rem;
    }
    
    .stat-card {
        padding: 0.8rem;
    }
    
    .stat-number {
        font-size: 1.3rem;
    }
    
    .tab-content {
        padding: 1rem;
    }
    
    .data-table {
        font-size: 0.7rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.3rem;
    }
    
    .user-info {
        padding: 1rem;
    }
    
    .user-info h3 {
        font-size: 1.2rem;
    }
}

/* 表单样式 */
.form-container {
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.form-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: white;
    font-weight: 600;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: white;
    font-weight: 500;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    backdrop-filter: blur(10px);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: #ffd700;
    box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.2);
}

.form-group input::placeholder, .form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(45deg, #ffd700, #ff6b6b);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.3);
}

.form-links {
    text-align: center;
    margin-top: 1.5rem;
}

.form-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    margin: 0 1rem;
}

.form-links a:hover {
    color: #ffd700;
}

/* 上传页面样式 */
.upload-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.upload-header {
    text-align: center;
    margin-bottom: 2rem;
}

.upload-header h1 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
    font-weight: 700;
}

.upload-header p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    line-height: 1.6;
}

.upload-form-container {
    margin-bottom: 2rem;
}

.upload-area {
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.05);
    margin-bottom: 2rem;
}

.upload-area:hover {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.1);
}

.upload-area.dragover {
    border-color: #ffd700;
    background: rgba(255, 215, 0, 0.2);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ffd700;
}

.upload-text {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.upload-hint {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.upload-tips {
    text-align: left;
    max-width: 400px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.upload-tips h4 {
    color: #ffd700;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.upload-tips ul {
    list-style: none;
    padding: 0;
}

.upload-tips li {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.upload-tips li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ffd700;
    font-weight: bold;
}

.file-input {
    display: none;
}

.upload-preview {
    margin-top: 2rem;
}

.preview-image {
    max-width: 100%;
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

/* 上传信息卡片样式 */
.upload-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.info-card.warning {
    background: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.3);
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.card-icon {
    font-size: 2rem;
    color: #ffd700;
}

.info-card.warning .card-icon {
    color: #ffc107;
}

.card-header h3 {
    color: white;
    font-size: 1.3rem;
    font-weight: 600;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
}

.feature-dot {
    color: #ffd700;
    font-weight: bold;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.warning-dot {
    color: #ffc107;
}

/* 结果页面样式 */
.result-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
}

.result-header {
    text-align: center;
    margin-bottom: 2rem;
    color: #fff;
}

.result-title {
    font-size: 2.5rem;
    font-weight: 700;
}

.result-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-top: 0.5rem;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.result-card {
    background: #fff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.result-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #1a202c;
}

.result-image-card img {
    width: 100%;
    border-radius: 10px;
}

.image-placeholder-large {
    width: 100%;
    height: 300px;
    background: #f7fafc;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0aec0;
    font-size: 1.2rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    color: #4a5568;
}

.detail-value {
    color: #1a202c;
    font-weight: 500;
}

.detail-value.font-bold {
    font-weight: 700;
}

.result-full-width-card {
    grid-column: 1 / -1;
}

.analysis-content {
    line-height: 1.7;
    color: #4a5568;
}

.diagnosis-card {
    background-color: #f0f7ff;
    border: 1px solid #cce5ff;
}

.diagnosis-card .analysis-content p {
    margin-bottom: 1rem;
}
.diagnosis-card .analysis-content p:last-child {
    margin-bottom: 0;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (max-width: 768px) {
    .result-grid {
        grid-template-columns: 1fr;
    }
}

/* 管理后台样式 */
.admin-container {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 2rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    color: #fff;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.admin-title {
    font-size: 2.2rem;
    font-weight: 700;
}

.admin-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    color: #fff;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #fff;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.admin-content-box {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 2rem;
    color: #fff;
}

.admin-content-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #fff;
    font-weight: 600;
}

.data-table-wrapper {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    color: #fff;
}

.data-table th, .data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.data-table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.8);
    background-color: rgba(255, 255, 255, 0.05);
    font-weight: 600;
}

.data-table tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.text-muted {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.text-truncate {
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.image-placeholder {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 11px;
    font-weight: 500;
}

.no-data-placeholder {
    text-align: center;
    padding: 4rem;
    color: rgba(255, 255, 255, 0.6);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.85);
    backdrop-filter: blur(5px);
}

.modal-content {
    margin: 5% auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    border-radius: 10px;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}
.close:hover {
    color: #ccc;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .result-content {
        grid-template-columns: 1fr;
    }
    
    .admin-stats {
        grid-template-columns: 1fr;
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s;
    display: inline-block;
}

.btn-edit {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.btn-delete {
    background: rgba(244, 67, 54, 0.2);
    color: #f44336;
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.btn-view {
    background: rgba(33, 150, 243, 0.2);
    color: #2196f3;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.btn-small:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.risk-level {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.risk-low {
    background: rgba(52, 199, 89, 0.2);
    color: #34C759;
    border: 1px solid rgba(52, 199, 89, 0.3);
}

.risk-medium {
    background: rgba(255, 149, 0, 0.2);
    color: #FF9500;
    border: 1px solid rgba(255, 149, 0, 0.3);
}

.risk-high {
    background: rgba(255, 59, 48, 0.2);
    color: #FF3B30;
    border: 1px solid rgba(255, 59, 48, 0.3);
}

.status-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.status-pending {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.status-completed {
    background: rgba(52, 199, 89, 0.2);
    color: #34C759;
    border: 1px solid rgba(52, 199, 89, 0.3);
}

.status-reviewed {
    background: rgba(33, 150, 243, 0.2);
    color: #2196f3;
    border: 1px solid rgba(33, 150, 243, 0.3);
}

.record-image {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.admin-content-box select,
.admin-content-box textarea,
.admin-content-box input[type="text"],
.admin-content-box input[type="email"],
.admin-content-box input[type="password"] {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 10px;
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 1rem;
    backdrop-filter: blur(10px);
    margin-bottom: 1rem;
    box-sizing: border-box;
}

.admin-content-box select option {
    background: #222;
    color: #fff;
}

.admin-content-box textarea::placeholder,
.admin-content-box input::placeholder {
    color: rgba(255,255,255,0.6);
}

.admin-content-box select:focus,
.admin-content-box textarea:focus,
.admin-content-box input:focus {
    outline: none;
    border-color: #ffd700;
    box-shadow: 0 0 0 2px rgba(255,215,0,0.2);
}