* {
    font-family: 'PingFang SC', 'Segoe UI', Roboto, 'Microsoft YaHei', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #f9fafc;
    color: #333;
    line-height: 1.6;
}

/* 头部 - 与首页统一 */
header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 60px;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    flex-wrap: wrap;
    border-bottom: 1px solid #eef0f3;
}

.logo-area {
    font-size: 28px;
    font-weight: 600;
    color: #1e2b3c;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}
.logo-area img { width: auto; height: 50px; }

.nav-group {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.nav-links {
    display: flex;
    gap: 28px;
    font-size: 16px;
    font-weight: 500;
}

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    transition: color 0.2s;
    padding: 0;
}

.nav-links a:hover {
    color: #4a6cf7;
}

.action-buttons {
    display: flex;
    gap: 16px;
    align-items: center;
}

.register-btn {
    background-color: #4a6cf7;
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(74,108,247,0.3);
    transition: background 0.2s, transform 0.1s;
    text-decoration: none;
    display: inline-block;
}

.register-btn:hover {
    background-color: #3154e0;
    color: white;
    transform: scale(1.02);
}

/* 页面Banner */
.page-banner {
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    padding: 100px 20px 80px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none" opacity="0.05"><path d="M0,0 L100,0 L100,100 Z" fill="white"/></svg>');
    background-size: cover;
    pointer-events: none;
}

.banner-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.banner-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.banner-subtitle {
    font-size: 24px;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 40px;
}

.tag {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 16px;
    border: 1px solid rgba(255,255,255,0.2);
}

.tag i {
    margin-right: 8px;
    font-size: 18px;
}

/* 核心优势区域 */
.core-section {
    padding: 80px 20px;
    background-color: white;
}

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

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #1e2b3c;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(to right, #4a6cf7, #6b4df5);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 20px 35px -8px rgba(0, 20, 50, 0.06);
    transition: all 0.3s ease;
    border: 1px solid #f0f4fc;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 45px -8px rgba(74, 108, 247, 0.12);
    border-color: #4a6cf7;
}

.feature-icon-container {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(145deg, #4a6cf7, #6b4df5);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: white;
    font-size: 32px;
}

.feature-card-title {
    font-size: 22px;
    font-weight: 700;
    color: #152b42;
    margin-bottom: 15px;
}

.divider {
    width: 25px;
    height: 3px;
    background: #4a6cf7;
    margin: 0 auto 20px;
}

.feature-card-desc {
    color: #4b5f77;
    font-size: 15px;
    line-height: 1.8;
}

/* 功能介绍区域 */
.function-section {
    padding: 80px 20px;
    /*background: linear-gradient(135deg, #1a2332 0%, #2c3e50 100%);*/
    background: url("/images/wy/kq_bg.png");
}

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

.function-title {
    text-align: center;
    font-size: 36px;
    color: white;
    margin-bottom: 60px;
    font-weight: 700;
    position: relative;
}

.function-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #4a6cf7;
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.function-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 30px;
    display: flex;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    align-items: flex-start;
}

.function-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.function-icon {
    width: 50px;
    height: 50px;
    background: rgba(74, 108, 247, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
    color: #4a6cf7;
    font-size: 24px;
}

.function-content {
    flex: 1;
}

.function-item-title {
    font-size: 20px;
    color: white;
    margin-bottom: 10px;
    font-weight: 600;
}

.function-item-desc {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.7;
}


/* 页脚 - 与首页统一 */
.footer {
    background-color: #17181b;
    padding: 5px 0;
    line-height: 50px;
    text-align: center;
    color: #808082;
    font-size: 16px;
}
.footer a {
    color: #808082;
    font-size: 16px;
}
.footer a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 992px) {
    header {
        padding: 16px 30px;
        flex-direction: column;
        gap: 20px;
    }
    .nav-links {
        justify-content: center;
    }
    .banner-title {
        font-size: 40px;
    }
    .banner-subtitle {
        font-size: 20px;
    }
    .section-title, .function-title {
        font-size: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
    .banner-title {
        font-size: 32px;
    }
    .banner-subtitle {
        font-size: 18px;
    }
    .section-title, .function-title {
        font-size: 28px;
    }
    .functions-grid {
        grid-template-columns: 1fr;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-card, .function-item, .advantage-item {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .banner-title {
        font-size: 28px;
    }
    .tag {
        padding: 10px 15px;
        font-size: 14px;
    }
    .banner-subtitle {
        font-size: 16px;
    }
}