/* 公共变量定义 */
:root {
    --primary: #0a2463;
    --secondary: #1e88e5;
    --accent: #ff6b6b;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #fff;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 16px;
}

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

/* 头部导航样式 */
header {
    background-color: rgba(255, 255, 255, 0.97);
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    padding: 5px 0;
    transition: var(--transition);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    transition: var(--transition);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo h1 {
    font-size: 1.6rem;
    font-weight: 400;
}

.logo span {
    color: var(--accent);
}

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

.nav-links li {
    margin-left: 60px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 400;
    position: relative;
    transition: var(--transition);
    padding: 5px 0;
    font-size: 1rem;
}

.nav-links a:hover {
    color: var(--secondary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary), var(--secondary));
    transition: var(--transition);
    border-radius: 3px;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links .active {
    color: var(--secondary);
}

.nav-links .active::after {
    width: 100%;
}

.mobile-menu {
    display: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--primary);
}

/* 通用卡片样式 */
.card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
}

/* 通用按钮样式 */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent), #ff5252);
    color: white;
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    animation: pulse 2s infinite;
    box-shadow: 0 5px 20px rgba(255, 107, 107, 0.4);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    letter-spacing: 1px;
}

/* 通用标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary), var(--secondary));
    border-radius: 3px;
}

.section-title p {
    color: var(--gray);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* 页脚样式 */
footer {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: white;
    padding: 100px 0 30px;
    position: relative;
    clip-path: polygon(0 15%, 100% 0, 100% 100%, 0 100%);
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 12px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
}

.footer-column p {
    color: #d1d1d1;
    margin-top: 12px;
    line-height: 1.8;
    font-size: 0.95rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #d1d1d1;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.footer-column ul li a:hover {
    color: white;
    transform: translateX(5px);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    transition: var(--transition);
    font-size: 1.1rem;
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #d1d1d1;
    font-size: 0.9rem;
}

/* 动画 */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7);
    }
    70% {
        box-shadow: 0 0 0 12px rgba(255, 107, 107, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }
    
    .section-title h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        background-color: white;
        width: 100%;
        flex-direction: column;
        align-items: center;
        padding: 25px 0;
        box-shadow: 0 8px 15px rgba(0,0,0,0.1);
        clip-path: circle(0px at top right);
        transition: clip-path 0.5s ease-in-out;
        z-index: 999;
    }
    
    .nav-links.open {
        clip-path: circle(1500px at top right);
    }
    
    .nav-links li {
        margin: 12px 0;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}


/* Layui弹窗移动端适配 */
.layui-layer-page .layui-layer-content {
  overflow: auto !important;
  -webkit-overflow-scrolling: touch !important;
}

/* 表单在移动端的优化 */
@media screen and (max-width: 768px) {
  .layui-form-item .layui-form-label {
    text-align: left;
    width: 100%;
    padding: 0 0 5px 0;
  }
  
  .layui-form-item .layui-input-block {
    margin-left: 0;
    width: 100%;
  }
  
  .layui-layer.layui-layer-page {
    width: 90% !important;
    left: 5% !important;
    max-width: 100%;
  }
}