/* 
小夕 938711193 未经同意盗用4000+
*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

body {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f7ff 30%, #e6f5ff 100%);
    color: #1e293b;
    min-height: 100vh;
    line-height: 1.6;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(30px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
    padding: 0.8rem 5%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b; 
    text-decoration: none;
}

.logo .logo-icon {
    color: #3b82f6;
    font-size: 1.8rem;
    animation: float 6s ease-in-out infinite;
    transform: rotate(45deg); 
    transition: transform 0.3s ease;
}

.logo .logo-icon:hover {
    transform: rotate(45deg) scale(1.1); 
}

@keyframes float {
    0%, 100% { transform: rotate(45deg) translateY(0); }
    50% { transform: rotate(45deg) translateY(-5px); }
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

nav a {
    text-decoration: none;
    color: #475569;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: all 0.3s ease;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    transition: width 0.3s ease;
}

nav a:hover {
    color: #3b82f6;
}

nav a:hover::after {
    width: 100%;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.7rem 1.8rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-login {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.btn-register {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-login:hover {
    background: rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
}

.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0 5%;
    position: relative;
    overflow: hidden;
}

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

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, 
        rgba(139, 92, 246, 0.1) 0%, 
        rgba(59, 130, 246, 0.05) 30%, 
        transparent 70%);
}

.hero-container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero-content {
    max-width: 600px;
    margin-right: auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.15), 
        rgba(139, 92, 246, 0.15));
    color: #3b82f6;
    padding: 0.6rem 1.2rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #1e293b, #475569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.1rem;
    color: #64748b;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.stats-container {
    margin: 2.5rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0; 
}

.stat-item:nth-child(1) .stat-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15), rgba(99, 102, 241, 0.15));
    color: #8b5cf6;
}

.stat-item:nth-child(2) .stat-icon {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(37, 99, 235, 0.15));
    color: #3b82f6;
}

.stat-item:nth-child(3) .stat-icon {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(5, 150, 105, 0.15));
    color: #10b981;
}

.stat-content {
    flex: 1;
    min-width: 0; 
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #1e293b, #475569);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.2rem;
    white-space: nowrap; 
}

.stat-label {
    font-size: 0.9rem;
    color: #64748b;
    white-space: nowrap; 
    overflow: hidden;
    text-overflow: ellipsis; 
}

/* 按钮组 */
.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.hero-btn {
    padding: 1.2rem 2.5rem;
    border-radius: 0.8rem;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.hero-btn-primary {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    border: none;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.hero-btn-secondary {
    background: white;
    color: #3b82f6;
    border: 2px solid #3b82f6;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.1);
}

.hero-btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.5);
}

.hero-btn-secondary:hover {
    transform: translateY(-4px);
    background: rgba(59, 130, 246, 0.05);
    box-shadow: 0 12px 25px rgba(59, 130, 246, 0.2);
}

.hero-btn i {
    font-size: 1.2rem;
}

/* 特性列表 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    padding: 1.8rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    font-size: 1.5rem;
}

.feature-card:nth-child(1) .feature-icon {
    background: rgba(34, 197, 94, 0.1);
    color: #10b981;
}

.feature-card:nth-child(2) .feature-icon {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.feature-card:nth-child(3) .feature-icon {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.feature-desc {
    font-size: 0.9rem;
    color: #64748b;
}

.decoration {
    position: absolute;
    z-index: 0;
}

.decoration-1 {
    top: 15%;
    right: 15%;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #ff9500;
    font-size: 24px;
    animation: float1 6s ease-in-out infinite;
}

.decoration-2 {
    top: 25%;
    right: 25%;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #4080ff;
    font-size: 20px;
    animation: float2 8s ease-in-out infinite;
}

.decoration-3 {
    top: 45%;
    right: 20%;
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    color: #333;
    font-size: 32px;
    animation: float3 7s ease-in-out infinite;
}

.decoration-4 {
    bottom: 25%;
    right: 30%;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #ff4d4f;
    font-size: 24px;
    animation: float4 9s ease-in-out infinite;
}

.decoration-5 {
    bottom: 15%;
    right: 20%;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #ff4d4f;
    font-size: 24px;
    animation: float5 6.5s ease-in-out infinite;
}

.decoration-6 {
    bottom: 35%;
    right: 15%;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #9254de;
    font-size: 20px;
    animation: float6 7.5s ease-in-out infinite;
}

.decoration-7 {
    bottom: 20%;
    right: 25%;
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    color: #52c41a;
    font-size: 20px;
    animation: float7 8.5s ease-in-out infinite;
}

/* 装饰图标的浮动动画 */
@keyframes float1 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}
@keyframes float2 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-5deg); }
}
@keyframes float3 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(3deg); }
}
@keyframes float4 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-7px) rotate(-3deg); }
}
@keyframes float5 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-9px) rotate(4deg); }
}
@keyframes float6 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(-4deg); }
}
@keyframes float7 {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-11px) rotate(2deg); }
}

.features-section {
    padding: 80px 5%;
    background: linear-gradient(135deg, #f5f0ff 0%, #e6f7ff 50%, #e6ffe6 100%);
}

.features-section .section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
    color: #333;
}

.features-section .section-subtitle {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 50px;
}

.features-grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card-v2 {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    transition: all 0.3s;
}

.feature-card-v2:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
}

.feature-icon-v2 {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 28px;
}

.feature-icon-red {
    background: rgba(255, 77, 79, 0.1);
    color: #ff4d4f;
}

.feature-icon-blue {
    background: rgba(64, 128, 255, 0.1);
    color: #4080ff;
}

.feature-icon-purple {
    background: rgba(146, 84, 222, 0.1);
    color: #9254de;
}

.feature-icon-orange {
    background: rgba(255, 158, 64, 0.1);
    color: #ff9e40;
}

.feature-icon-green {
    background: rgba(82, 196, 26, 0.1);
    color: #52c41a;
}

.feature-card-v2 h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #333;
}

.feature-card-v2 p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.faq-section {
    padding: 80px 5%;
    background: linear-gradient(135deg, #f5f0ff 0%, #e6f7ff 50%, #e6ffe6 100%);
}

.faq-section .section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
    color: #333;
}

.faq-section .section-subtitle {
    text-align: center;
    font-size: 16px;
    color: #666;
    margin-bottom: 50px;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.faq-item {
    border-bottom: 1px solid #eee;
    padding: 20px 0;
    cursor: pointer;
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 500;
    color: #333;
}

.faq-answer {
    margin-top: 15px;
    color: #666;
    line-height: 1.6;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-toggle {
    font-size: 18px;
    color: #666;
    transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

footer {
    background: white;
    padding: 30px 5%;
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: bold;
    color: #333; 
}

.footer-logo i {
    color: #3b82f6;
    font-size: 1.2rem;
    transform: rotate(0deg) !important; 
    transition: transform 0.3s ease;
}

.footer-logo i:hover {
    transform: rotate(0deg) scale(1.1) !important; 
}

.footer-info {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 12px;
    color: #999;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    text-decoration: none;
    color: #666;
    font-size: 14px;
}

.footer-links a:hover {
    color: #4080ff;
}

.beian {
    display: flex;
    align-items: center;
    gap: 5px;
}

.beian-icon {
    color: #999;
    font-size: 12px;
}

@media (max-width: 1200px) {
    .hero-container {
        max-width: 1000px;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .features-grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 6rem;
        text-align: center;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-content {
        max-width: 100%;
        margin-right: 0;
    }
    
    .stats-grid {
        display: flex;
        flex-direction: row;
        justify-content: center;
        align-items: stretch;
        gap: 0.8rem;
        margin: 1.5rem auto 2rem;
        max-width: 100%;
    }
    
    .stat-item {
        flex: 1;
        min-width: 0;
        padding: 1rem 0.5rem;
        min-height: 80px;
        display: flex;
        flex-direction: column;
        text-align: center;
        justify-content: center;
    }
    
    .stat-icon {
        width: 2.2rem;
        height: 2.2rem;
        font-size: 1rem;
        margin: 0 auto 0.5rem;
    }
    
    .stat-content {
        display: flex;
        flex-direction: column;
        align-items: center;
        min-width: 0;
    }
    
    .stat-number {
        font-size: 1.3rem;
        margin-bottom: 0.2rem;
        white-space: nowrap;
    }
    
    .stat-label {
        font-size: 0.7rem;
        white-space: nowrap; 
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-top: 0.5rem;
    }
    
    .hero-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .features-grid,
    .features-grid-container {
        grid-template-columns: 1fr;
    }
    
    .decoration {
        display: none;
    }
    
    nav ul {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .footer-info {
        flex-direction: column;
        gap: 10px;
    }
    
    .features-section .section-title,
    .faq-section .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-desc {
        font-size: 1rem;
    }
    
    .hero-btn {
        padding: 1rem 1.5rem;
        font-size: 1rem;
    }
    
    .auth-buttons {
        display: none;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .stats-grid {
        gap: 0.5rem;
    }
    
    .stat-item {
        padding: 0.8rem 0.3rem;
        min-height: 70px;
    }
    
    .stat-icon {
        width: 1.8rem;
        height: 1.8rem;
        font-size: 0.9rem;
        margin-bottom: 0.4rem;
    }
    
    .stat-number {
        font-size: 1.1rem;
        white-space: nowrap;
    }
    
    .stat-label {
        font-size: 0.65rem;
        white-space: nowrap; 
        overflow: hidden;
        text-overflow: ellipsis;
    }
}

/* 超大屏幕优化 */
@media (min-width: 1400px) {
    .hero-container {
        max-width: 1300px;
    }
    
    .hero-content {
        margin-right: 60px;
    }
    
    .decoration-1 { right: 20%; }
    .decoration-2 { right: 30%; }
    .decoration-3 { right: 25%; }
    .decoration-4 { right: 35%; }
    .decoration-5 { right: 25%; }
    .decoration-6 { right: 20%; }
    .decoration-7 { right: 30%; }
}