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

/* 鼠标跟随圆圈特效 */
.mouse-circle {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid #06B6D4;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
    mix-blend-mode: difference;
}

/* 图片放大模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
    position: relative;
    margin: 10% auto;
    padding: 0;
    width: 80%;
    max-width: 800px;
}

.modal-content img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

.close {
    position: absolute;
    top: -40px;
    right: 0;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.close:hover {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

/* 使showcase-item可点击 */
.showcase-item {
    cursor: pointer;
    transition: transform 0.3s ease;
}

.showcase-item:hover {
    transform: scale(1.05);
}

/* 字体导入 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* 全局变量 */
:root {
    --primary-color: #6366F1;
    --primary-gradient: linear-gradient(135deg, #6366F1, #8B5CF6);
    --background-color: #0F172A;
    --secondary-color: #06B6D4;
    --accent-color: #A855F7;
    --text-light: #E2E8F0;
    --text-white: #FFFFFF;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(99, 102, 241, 0.2);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --transition: all 0.3s ease;
}

/* 科技背景动画 */
.tech-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
    background-image: 
        linear-gradient(rgba(139, 92, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

#plexus-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.tech-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.tech-particles::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(139, 92, 246, 0.5) 1px, transparent 1px),
        radial-gradient(circle, rgba(168, 85, 247, 0.5) 1px, transparent 1px),
        radial-gradient(circle, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 50px 50px, 30px 30px, 70px 70px;
    background-position: 0 0, 25px 25px, 10px 10px;
    animation: particlesMove 15s linear infinite;
}

@keyframes particlesMove {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        transform: translate(50px, 50px) rotate(360deg);
    }
}

.tech-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(139, 92, 246, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 92, 246, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

.tech-network {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.6;
}

.tech-network::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 80% 30%, rgba(168, 85, 247, 0.1) 0%, transparent 25%),
        radial-gradient(circle at 30% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 20%),
        radial-gradient(circle at 70% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 25%);
}

.tech-network::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(45deg, transparent 49%, rgba(139, 92, 246, 0.05) 50%, transparent 51%),
        linear-gradient(-45deg, transparent 49%, rgba(168, 85, 247, 0.05) 50%, transparent 51%),
        linear-gradient(135deg, transparent 49%, rgba(139, 92, 246, 0.05) 50%, transparent 51%),
        linear-gradient(-135deg, transparent 49%, rgba(168, 85, 247, 0.05) 50%, transparent 51%);
    background-size: 100px 100px, 80px 80px, 120px 120px, 90px 90px;
    animation: networkMove 30s linear infinite;
}

.tech-connections {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
}

.tech-connections::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(139, 92, 246, 0.8) 1px, transparent 1px),
        radial-gradient(circle, rgba(168, 85, 247, 0.8) 1px, transparent 1px);
    background-size: 40px 40px, 60px 60px;
    background-position: 0 0, 20px 20px;
    animation: pulse 3s ease-in-out infinite;
}

.tech-connections::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, transparent 98%, rgba(139, 92, 246, 0.3) 99%, transparent 100%),
        linear-gradient(transparent 98%, rgba(168, 85, 247, 0.3) 99%, transparent 100%);
    background-size: 40px 40px, 60px 60px;
    background-position: 0 0, 20px 20px;
    animation: connectionsMove 10s linear infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 1;
    }
}

@keyframes connectionsMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(40px, 40px);
    }
}

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

@keyframes networkMove {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    100% {
        transform: translate(50px, 50px) rotate(360deg);
    }
}

/* 背景流星 */
.tech-meteor {
    position: absolute;
    width: 2px;
    height: 40px;
    background: linear-gradient(90deg, transparent, currentColor);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    animation: meteorMove linear infinite;
    box-shadow: 0 0 15px currentColor, 0 0 30px currentColor, 0 0 45px currentColor;
}

@keyframes meteorMove {
    0% {
        transform: translateX(-100px) translateY(0) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    50% {
        transform: translateX(50vw) translateY(calc(var(--random-y, 100px) * 0.5)) rotate(var(--random-rotate, 10deg));
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateX(100vw) translateY(var(--random-y, 200px)) rotate(var(--random-rotate, 20deg));
        opacity: 0;
    }
}

/* 基础样式 */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* 登录页面样式 */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--primary-gradient);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 30px;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glow);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header .brand-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: var(--text-white);
}

.login-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 10px;
}

.login-header p {
    color: var(--text-light);
}

.error-message {
    color: #ef4444;
    margin-top: 10px;
    font-size: 0.9rem;
}

.login-hint {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.w-full {
    width: 100%;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 5px;
}

/* Logo样式 */
.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.footer-logo {
    width: 60px;
    height: 60px;
    margin-bottom: 10px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 渐变标题 */
.gradient-title {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

/* 科技按钮 */
.tech-btn {
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tech-btn.primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-glow);
}

.tech-btn.secondary {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.tech-btn.ghost {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--glass-border);
}

.tech-btn.small {
    padding: 8px 16px;
    font-size: 12px;
}

.tech-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tech-btn.loading {
    position: relative;
    padding-left: 40px;
}

.loading-spinner {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--text-white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translateY(-50%) rotate(0deg); }
    100% { transform: translateY(-50%) rotate(360deg); }
}

.tech-btn:hover:not(.disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.4);
}

.tech-btn:active:not(.disabled) {
    transform: translateY(0);
}

/* 玻璃卡片 */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 24px;
    margin: 10px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    flex: 1;
    min-width: 200px;
}

.glass-card.hoverable:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.glass-card.border-glow {
    box-shadow: var(--shadow-glow);
    border: 1px solid rgba(99, 102, 241, 0.4);
}

.glass-card.with-icon .card-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 20px;
    color: var(--text-white);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-white);
}

.brand-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-white);
}

.navbar-links {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link.admin {
    background: var(--primary-gradient);
    padding: 8px 16px;
    border-radius: 6px;
    color: var(--text-white);
}

.nav-link.admin:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Banner区域 */
.banner {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1), transparent 70%);
    z-index: -1;
}

.banner .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.banner-content {
    flex: 1;
    max-width: 600px;
}

.gradient-title {
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(135deg, #06B6D4, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    color: var(--text-light);
}

/* 动画效果 */
.animate-float {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.1);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.1);
    }
    70% {
        transform: scale(1);
    }
}

.animate-fade {
    animation: fadeIn 2s ease-out;
}

/* AI立方体 */
.ai-cubes {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cube {
    position: absolute;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.3), rgba(168, 85, 247, 0.3));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(139, 92, 246, 0.5);
    border-radius: 16px;
    opacity: 0.8;
    animation: cubeFloat 6s ease-in-out infinite;
    box-shadow: 0 0 30px rgba(139, 92, 246, 0.5);
    transition: transform 0.5s ease;
}

.cube-1 {
    width: 350px;
    height: 250px;
    left: 50%;
    top: 50%;
    transform: translate(-90%, -90%);
    animation-delay: 0s;
    z-index: 1;
}

.cube-2 {
    width: 320px;
    height: 230px;
    left: 50%;
    top: 50%;
    transform: translate(-55%, -55%);
    animation-delay: 2s;
    z-index: 2;
}

.cube-3 {
    width: 290px;
    height: 210px;
    left: 50%;
    top: 50%;
    transform: translate(-20%, -20%);
    animation-delay: 4s;
    z-index: 3;
}

@keyframes cubeFloat {
    0%, 100% {
        transform: translate(var(--original-x, 0), var(--original-y, 0));
        opacity: 0.8;
    }
    50% {
        transform: translate(calc(var(--original-x, 0) + 5px), calc(var(--original-y, 0) - 5px));
        opacity: 1;
    }
}

.banner-buttons {
    display: flex;
    gap: 16px;
}

.banner-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-brain {
    width: 400px;
    height: 400px;
    background: var(--primary-gradient);
    border-radius: 50%;
    position: relative;
    animation: pulse 3s ease-in-out infinite;
}

.ai-brain::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 50%;
    filter: blur(20px);
    opacity: 0.5;
    animation: pulse 3s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* 核心功能展示区 */
.features {
    padding: 100px 0;
    position: relative;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-align: center;
    background: linear-gradient(135deg, #06B6D4, #10B981);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    background: rgba(30, 27, 75, 0.3);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 8px;
    padding: 20px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    border-color: rgba(139, 92, 246, 0.5);
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

/* 高亮卡片样式 */
.feature-card.highlighted {
    border: 1px solid #A855F7;
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.5);
    background: rgba(168, 85, 247, 0.1);
}

.feature-card.highlighted::before {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(139, 92, 246, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 18px;
    color: #A855F7;
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-white);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.8rem;
    line-height: 1.4;
}

/* 核心功能查看更多按钮 */
.features-more {
    text-align: center;
    margin-top: 60px;
    padding-bottom: 20px;
}

/* 下载板块查看更新历史按钮 */
.download-more {
    text-align: center;
    margin-top: 60px;
    padding-bottom: 20px;
}

/* 用户评价 */
.testimonials {
    padding: 100px 0;
    background: rgba(15, 23, 42, 0.5);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.testimonial-card {
    background: rgba(30, 27, 75, 0.3);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 8px;
    padding: 20px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(99, 102, 241, 0.1) 100%);
    z-index: 0;
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    border-color: rgba(139, 92, 246, 0.5);
}

.testimonial-card > * {
    position: relative;
    z-index: 1;
}

/* 高亮卡片样式 */
.testimonial-card.highlighted {
    border: 1px solid #06B6D4;
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.5);
    background: rgba(6, 182, 212, 0.1);
}

.testimonial-card.highlighted::before {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2) 0%, rgba(16, 185, 129, 0.2) 100%);
}

.testimonial-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 12px;
    border: 2px solid rgba(139, 92, 246, 0.5);
    float: left;
    margin-right: 12px;
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 8px;
    padding-top: 4px;
}

.testimonial-content p {
    color: var(--text-light);
    font-size: 0.8rem;
    line-height: 1.4;
    clear: both;
    margin-bottom: 12px;
}

/* 评分样式 */
.testimonial-rating {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.testimonial-rating i {
    color: #FBBF24;
    font-size: 12px;
}

/* 效果图展示 */
.showcase {
    padding: 100px 0;
}

.showcase-content {
    max-width: 800px;
    margin: 0 auto 60px;
    text-align: center;
}

.showcase-content p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-light);
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
}

.showcase-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.showcase-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

/* 下载板块 */
.downloads {
    padding: 100px 0;
    background: rgba(15, 23, 42, 0.5);
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.download-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 30px 24px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.download-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: 0;
}

.download-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    border-color: #6366F1;
}

.download-item > * {
    position: relative;
    z-index: 1;
}

.download-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.1);
    font-size: 24px;
}

.download-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 10px;
}

.download-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* 按钮样式 */
.download-btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    margin-bottom: 10px;
    width: 100%;
    box-sizing: border-box;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* 不同按钮的颜色 */
.ios-btn {
    background: linear-gradient(135deg, #FF6B6B, #EE5A6F);
    color: white;
}

.android-btn {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
}

.tutorial-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.wechat-btn {
    background: linear-gradient(135deg, #07C160, #05AE56);
    color: white;
    margin-top: 15px;
}

.web-btn {
    background: linear-gradient(135deg, #4285F4, #3367D6);
    color: white;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Android按钮布局 */
.android-buttons {
    display: flex;
    gap: 10px;
}

.android-buttons .download-btn {
    flex: 1;
    margin-bottom: 0;
}

/* 微信二维码样式 */
.wechat-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qr-code {
    width: 120px;
    height: 120px;
    background: white;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.qr-code img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.stat-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 页脚 */
.footer {
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    text-align: center;
}

.footer-brand p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-white);
}

.footer-links a {
    display: block;
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: 8px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-contact p {
    color: var(--text-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 后台管理样式 */
.admin-section {
    padding: 120px 0;
}

.admin-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.admin-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-white);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-light);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-white);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* 表格样式 */
.tech-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.tech-table th,
.tech-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.tech-table th {
    background: rgba(99, 102, 241, 0.1);
    font-weight: 600;
    color: var(--text-white);
}

.tech-table tr:hover {
    background: rgba(99, 102, 241, 0.05);
}

.tech-btn.danger {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.2);
}

.tech-btn.danger:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar-links {
        display: none;
    }

    .banner .container {
        flex-direction: column;
        text-align: center;
    }

    .banner-title {
        font-size: 2.5rem;
    }

    .ai-brain {
        width: 300px;
        height: 300px;
    }

    .banner-buttons {
        justify-content: center;
    }

    .features-grid,
    .prompts-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .banner-title {
        font-size: 2rem;
    }

    .ai-brain {
        width: 250px;
        height: 250px;
    }

    .tech-btn {
        padding: 10px 20px;
    }
}

/* 图片放大模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
}

.close:hover,
.close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

.showcase-item img {
    cursor: pointer;
    transition: transform 0.3s ease;
}

.showcase-item img:hover {
    transform: scale(1.05);
}

    .glass-card,
    .feature-card,
    .prompt-card,
    .stat-card {
        padding: 20px;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* 加载动画 */
.loading-ring {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(99, 102, 241, 0.2);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 10px;
}

.loading-pulse {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
    margin: 0 auto 10px;
}

.loading-flow {
    width: 80px;
    height: 20px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: flow 1.5s ease-in-out infinite;
    margin: 0 auto 10px;
    border-radius: 10px;
}

@keyframes flow {
    0% {
        background-position: -80px 0;
    }
    100% {
        background-position: 80px 0;
    }
}

.loading-brain {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 50%;
    animation: pulse 1.5s ease-in-out infinite;
    margin: 0 auto 10px;
}

/* 分割线 */
.divider {
    height: 1px;
    margin: 20px 0;
    background: var(--glass-border);
}

.divider.gradient {
    background: var(--primary-gradient);
}

.divider.glow {
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
}

.divider.dashed {
    background: none;
    border-top: 1px dashed var(--glass-border);
}

.divider.dotted {
    background: none;
    border-top: 1px dotted var(--glass-border);
}

/* 图标样式 */
.tech-icon {
    font-size: 24px;
    transition: var(--transition);
}

.tech-icon.linear {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.tech-icon.filled {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-icon.ai {
    color: var(--secondary-color);
    text-shadow: 0 0 10px var(--secondary-color);
}

/* 标签/徽章 */
.tech-tag {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-color);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.tech-tag.gradient {
    background: var(--primary-gradient);
    color: var(--text-white);
    border: none;
}

.tech-tag.glow {
    background: var(--primary-color);
    color: var(--text-white);
    border: none;
    box-shadow: 0 0 10px var(--primary-color);
}

.tech-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.tech-badge.success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.tech-badge.warning {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.tech-badge.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* 输入框 */
.tech-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-white);
    font-size: 14px;
    transition: var(--transition);
}

.tech-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.tech-input.error {
    border-color: #ef4444;
}

.input-group {
    position: relative;
    margin: 10px;
    flex: 1;
}

.input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 14px;
}

.tech-input.with-icon {
    padding-left: 40px;
}

.search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 14px;
}

.error-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #ef4444;
    font-size: 14px;
}

/* 下拉选择框 */
.tech-select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-white);
    font-size: 14px;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23E2E8F0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11l-4-4h8l-4 4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.tech-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

/* 分页控件 */
.tech-pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.page-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.5);
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.page-btn.active {
    background: var(--primary-gradient);
    color: var(--text-white);
    border-color: var(--primary-color);
}

/* 对话气泡 */
.chat-container {
    max-width: 600px;
    margin: 0 auto;
}

.chat-message {
    margin-bottom: 20px;
    display: flex;
}

.chat-message.user {
    justify-content: flex-end;
}

.chat-message.ai {
    justify-content: flex-start;
}

.message-content {
    max-width: 80%;
    padding: 16px;
    border-radius: 12px;
    position: relative;
}

.chat-message.user .message-content {
    background: var(--primary-gradient);
    color: var(--text-white);
    border-bottom-right-radius: 4px;
}

.chat-message.ai .message-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    border-bottom-left-radius: 4px;
}

.message-time {
    font-size: 12px;
    opacity: 0.7;
    margin-top: 8px;
    display: block;
    text-align: right;
}

/* 数据仪表盘卡片 */
.dashboard-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 24px;
    margin: 10px;
    flex: 1;
    min-width: 200px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-color);
}

.dashboard-card h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 16px;
    color: var(--text-light);
}

.dashboard-value {
    font-size: 2rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.dashboard-trend {
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.dashboard-trend.up {
    color: #10b981;
}

.dashboard-trend.down {
    color: #ef4444;
}

/* 神经网络节点图 */
.neural-network {
    width: 100%;
    height: 300px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.neural-network::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1), transparent 70%);
}

/* 代码块 */
.code-block {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    margin: 10px;
    flex: 1;
    min-width: 300px;
}

.code-header {
    background: rgba(99, 102, 241, 0.1);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
}

.code-header span {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
}

.code-header .copy-btn {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
}

.code-header .copy-btn:hover {
    color: var(--primary-color);
}

.code-block pre {
    padding: 16px;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.code-block code {
    color: var(--text-light);
}

/* 进度环/进度条 */
.progress-container {
    margin: 20px;
    text-align: center;
    flex: 1;
}

.progress-ring {
    position: relative;
    display: inline-block;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: rgba(99, 102, 241, 0.2);
    stroke-width: 4;
}

.progress-ring-fill {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 70;
    animation: progress 2s ease-in-out;
}

@keyframes progress {
    from {
        stroke-dashoffset: 283;
    }
    to {
        stroke-dashoffset: 70;
    }
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-white);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    animation: fillProgress 2s ease-in-out;
}

@keyframes fillProgress {
    from {
        width: 0;
    }
    to {
        width: 60%;
    }
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-glow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
}

.close-btn:hover {
    color: var(--primary-color);
}

.modal-body {
    margin-bottom: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid var(--glass-border);
}

/* 组件展示页面样式 */
.page-header {
    text-align: center;
    padding: 100px 0 60px;
}

.page-header .subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: 10px;
}

.component-section {
    padding: 60px 0;
    border-top: 1px solid var(--glass-border);
}

.component-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.component-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-white);
}

.component-demo {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
}

.loading-container {
    text-align: center;
    margin: 20px;
    flex: 1;
    min-width: 100px;
}

.loading-container p {
    margin-top: 10px;
    font-size: 14px;
    color: var(--text-light);
}

.icon-container {
    text-align: center;
    margin: 20px;
    flex: 1;
    min-width: 100px;
}

.icon-container p {
    margin-top: 10px;
    font-size: 14px;
    color: var(--text-light);
}